:root {
  --paper: #f5f2ea;
  --surface: #fbfaf6;
  --surface-strong: #ffffff;
  --ink: #202421;
  --muted: #747871;
  --line: #deddd5;
  --dark: #28312d;
  --sage: #91a694;
  --sage-pale: #dbe4d9;
  --blue: #7f9ca7;
  --blue-pale: #dce8ea;
  --amber: #c8975d;
  --amber-pale: #eee0cb;
  --rose: #b8807e;
  --shadow: 0 18px 54px rgba(45, 48, 43, 0.1);
  --radius: 18px;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { touch-action: manipulation; }

/* Keep keyboard navigation useful without changing the visual layout. */
.skip-link {
  position: fixed;
  z-index: 100;
  top: 10px;
  left: 12px;
  padding: 9px 13px;
  border-radius: 10px;
  background: var(--dark);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  text-decoration: none;
  transform: translateY(-160%);
  transition: transform .16s ease;
}
.skip-link:focus { transform: translateY(0); outline: 3px solid rgba(83,100,220,.3); outline-offset: 2px; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-width: 320px;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}

button, input { font: inherit; }
button { color: inherit; }

.app-shell { min-height: 100vh; display: flex; }

.sidebar {
  width: 242px;
  min-height: 100vh;
  position: fixed;
  inset: 0 auto 0 0;
  display: flex;
  flex-direction: column;
  padding: 28px 18px 18px;
  background: #ece9e0;
  border-right: 1px solid rgba(93, 95, 88, 0.12);
  z-index: 20;
}

.brand {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 0 10px 33px;
  color: var(--ink);
  text-decoration: none;
  font: 700 21px ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: -0.04em;
}

.brand-mark { width: 28px; height: 28px; display: flex; align-items: end; gap: 2px; transform: rotate(-6deg); }
.brand-mark span { display: block; width: 8px; border-radius: 8px 8px 3px 3px; background: var(--dark); }
.brand-mark span:nth-child(1) { height: 15px; }
.brand-mark span:nth-child(2) { height: 25px; background: var(--sage); }
.brand-mark span:nth-child(3) { height: 19px; }

.nav-list { display: grid; gap: 5px; }
.nav-item {
  border: 0;
  width: 100%;
  min-height: 45px;
  padding: 0 12px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-radius: 11px;
  background: transparent;
  color: #5d615c;
  cursor: pointer;
  text-align: left;
  font-weight: 600;
  transition: .18s ease;
}

.nav-item:hover { background: rgba(255,255,255,.45); color: var(--ink); }
.nav-item.is-active { color: var(--ink); background: rgba(255,255,255,.72); box-shadow: inset 0 0 0 1px rgba(86, 90, 82, .06); }
.nav-icon { width: 22px; font-size: 19px; text-align: center; font-weight: 400; }
.nav-count { margin-left: auto; min-width: 22px; height: 22px; padding: 0 6px; display: grid; place-items: center; border-radius: 20px; background: var(--dark); color: white; font-size: 11px; }
.sidebar-bottom { margin-top: auto; }
.profile-row strong, .profile-row small { display: block; }
.profile-row strong { font-size: 12px; }
.profile-row small { color: var(--muted); font-size: 10px; margin-top: 3px; }
.mini-ring { width: 41px; height: 41px; flex: 0 0 auto; display: grid; place-items: center; border-radius: 50%; background: conic-gradient(var(--sage) 68%, rgba(255,255,255,.7) 0); position: relative; }
.mini-ring::after { content: ""; position: absolute; inset: 4px; border-radius: inherit; background: #ece9e0; }
.mini-ring span { position: relative; z-index: 1; font: 700 11px ui-sans-serif, sans-serif; }
.profile-row { margin-top: 9px; padding: 13px 8px 0; display: flex; align-items: center; gap: 9px; border-top: 1px solid rgba(75,78,72,.12); }
.profile-row > span:nth-child(2) { flex: 1; }
.avatar { width: 32px; height: 32px; display: grid; place-items: center; border-radius: 10px; color: #fff; background: var(--blue); font-weight: 700; font-size: 11px; }

.main-content { margin-left: 242px; min-width: 0; width: calc(100% - 242px); }
.topbar { height: 76px; padding: 0 clamp(24px, 4vw, 56px); display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid rgba(78,80,75,.1); }
.breadcrumb { display: flex; gap: 9px; align-items: center; font-size: 12px; color: var(--muted); }
.breadcrumb b { font-weight: 400; color: #b0b1aa; }
.breadcrumb strong { color: var(--ink); }
.top-actions { display: flex; gap: 10px; align-items: center; }
.language-toggle { min-width: 43px; height: 35px; padding: 0 10px; border: 1px solid var(--line); border-radius: 9px; background: rgba(255,255,255,.4); cursor: pointer; color: var(--muted); font-size: 9px; font-weight: 800; letter-spacing: .04em; }
.language-toggle:hover { border-color: var(--sage); color: var(--ink); background: white; }
.icon-button { border: 0; background: transparent; cursor: pointer; border-radius: 10px; }
.notification-button { position: relative; width: 39px; height: 39px; background: rgba(255,255,255,.4); font-size: 21px; }
.notification-button span { position: absolute; top: 8px; right: 9px; width: 6px; height: 6px; border: 2px solid var(--paper); border-radius: 50%; background: var(--rose); }
.button { min-height: 41px; border: 0; border-radius: 10px; padding: 0 17px; cursor: pointer; font-weight: 700; font-size: 12px; transition: transform .15s ease, box-shadow .15s ease; }
.button:hover { transform: translateY(-1px); }
.button-dark { background: var(--dark); color: white; box-shadow: 0 8px 20px rgba(40,49,45,.14); }
.button-ghost { background: #ecebe5; }
.mobile-menu { display: none; }

.view-root { max-width: 1440px; margin: auto; padding: 42px clamp(24px, 4vw, 56px) 60px; }
.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: 34px; }
.eyebrow { text-transform: uppercase; letter-spacing: .15em; font-size: 10px; font-weight: 700; color: var(--muted); margin-bottom: 9px; }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 8px; font: 650 clamp(30px, 4vw, 44px)/1.08 ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; letter-spacing: -.045em; }
h2 { font: 650 26px/1.2 ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; letter-spacing: -.035em; }
h3 { font: 650 17px/1.25 ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; letter-spacing: -.025em; }
.page-head p { margin: 0; max-width: 610px; color: var(--muted); line-height: 1.6; font-size: 13px; }
.date-chip { min-width: 150px; padding: 10px 14px; border: 1px solid var(--line); border-radius: 12px; background: rgba(255,255,255,.35); font-size: 11px; color: var(--muted); text-align: center; }

.dashboard-grid { display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(280px, .75fr); gap: 22px; }
.section-card { background: rgba(255,255,255,.53); border: 1px solid rgba(97,99,92,.13); border-radius: var(--radius); }
.card-heading { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: 20px; }
.card-heading h2, .card-heading h3 { margin: 0; }
.text-button { border: 0; padding: 0; background: transparent; color: var(--muted); cursor: pointer; font-size: 11px; font-weight: 700; }
.text-button:hover { color: var(--ink); }
.study-list { display: grid; gap: 11px; }
.study-item { padding: 15px; min-height: 88px; display: grid; grid-template-columns: 42px minmax(0,1fr) auto; align-items: center; gap: 14px; border: 1px solid var(--line); border-radius: 13px; background: rgba(255,255,255,.52); transition: transform .18s ease, box-shadow .18s ease; }
.study-item:hover { transform: translateY(-2px); box-shadow: 0 10px 25px rgba(50,53,48,.07); }
.study-index { width: 41px; height: 41px; display: grid; place-items: center; border-radius: 11px; background: var(--sage-pale); color: #4d6754; font: 700 15px ui-sans-serif, sans-serif; }
.study-index.course-theme-2 { background: var(--blue-pale); color: #456b78; }
.study-index.course-theme-3 { background: var(--amber-pale); color: #896333; }
.study-copy strong { display: block; font-size: 13px; margin-bottom: 6px; }
.study-meta { display: flex; align-items: center; flex-wrap: wrap; gap: 7px; color: var(--muted); font-size: 10px; }
.dot { width: 3px; height: 3px; border-radius: 50%; background: #aaa; }

.insight-card { padding: 25px; position: relative; overflow: hidden; background: var(--dark); color: white; }
.insight-card::after { content: ""; position: absolute; width: 190px; height: 190px; right: -85px; bottom: -110px; border-radius: 50%; border: 32px solid rgba(145,166,148,.15); }
.insight-card .eyebrow { color: #aebbb2; }
.insight-card h2 { max-width: 280px; font-size: 22px; line-height: 1.32; margin-bottom: 13px; }
.insight-card p { color: #c3cbc5; font-size: 12px; line-height: 1.6; margin-bottom: 25px; }
.insight-card .button { background: #f6f2e9; color: var(--dark); position: relative; z-index: 1; }

.courses-section { grid-column: 1 / -1; margin-top: 8px; }
.dashboard-courses-only { width: 100%; }
.dashboard-courses-heading { margin-bottom: 24px; }
.dashboard-courses-heading h1 { margin: 0; }
.dashboard-courses-empty { min-height: 180px; padding: 28px; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 18px; }
.dashboard-courses-empty > span { width: 46px; height: 46px; display: grid; place-items: center; border-radius: 12px; background: var(--sage-pale); font-size: 20px; }
.dashboard-courses-empty h2 { margin-bottom: 5px; font-size: 18px; }.dashboard-courses-empty p { margin: 0; color: var(--muted); font-size: 10px; }
.archived-courses-simple { margin-top: 28px; padding-top: 18px; border-top: 1px solid var(--line); }.archived-courses-simple summary { margin-bottom: 15px; cursor: pointer; color: var(--muted); font-size: 10px; font-weight: 700; }.archived-courses-simple .course-grid { opacity: .68; }
.courses-heading { display: flex; justify-content: space-between; align-items: end; margin-bottom: 16px; }
.courses-heading h2 { margin-bottom: 5px; font-size: 21px; }
.courses-heading p { margin: 0; color: var(--muted); font-size: 11px; }
.course-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 15px; }
.course-card { min-height: 190px; padding: 21px; position: relative; overflow: hidden; border: 1px solid rgba(88,91,84,.13); border-radius: 16px; background: rgba(255,255,255,.54); cursor: pointer; transition: transform .18s ease, box-shadow .18s ease; }
.course-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.course-card::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: var(--path-color); }
.course-top { display: flex; justify-content: space-between; align-items: start; margin-bottom: 31px; }
.course-icon { width: 43px; height: 43px; display: grid; place-items: center; border-radius: 12px; background: color-mix(in srgb, var(--path-color) 28%, white); font: 600 18px ui-sans-serif, sans-serif; }
.course-tag { padding: 6px 9px; border-radius: 30px; background: color-mix(in srgb, var(--path-color) 17%, white); color: #59615b; font-size: 9px; font-weight: 700; text-transform: uppercase; letter-spacing: .07em; }
.course-card h3 { margin-bottom: 5px; }
.course-code { color: var(--muted); font-size: 10px; }
.course-content-counts { margin-top: 24px; display: flex; flex-wrap: wrap; gap: 6px; }.course-content-counts span { padding: 6px 8px; border-radius: 7px; background: #eeede7; color: var(--muted); font-size: 8px; }
.progress-row { margin-top: 24px; }
.progress-label { display: flex; justify-content: space-between; margin-bottom: 8px; color: var(--muted); font-size: 10px; }
.progress-track { height: 5px; overflow: hidden; border-radius: 5px; background: #e5e4de; }
.progress-track span { display: block; height: 100%; border-radius: inherit; background: var(--path-color); }


.mistake-card { padding: 23px; }
.mistake-toolbar { margin-bottom: 14px; display: flex; justify-content: space-between; align-items: center; gap: 14px; }
.mistake-filter-controls { display: flex; align-items: end; gap: 12px; }
.mistake-filter-controls > label { display: grid; gap: 5px; }
.mistake-filter-controls > label span { color: var(--muted); font-size: 8px; font-weight: 800; text-transform: uppercase; letter-spacing: .06em; }
.mistake-filter-controls select { min-width: 190px; min-height: 38px; padding: 0 34px 0 11px; border: 1px solid var(--line); border-radius: 9px; background: white; color: var(--ink); font-size: 10px; }
.mistake-summary { display: flex; gap: 9px; }
.mistake-summary span { padding: 8px 11px; border: 1px solid var(--line); border-radius: 9px; color: var(--muted); font-size: 8px; }
.mistake-summary strong { color: var(--ink); font-size: 11px; }
.filter-chips { padding: 3px; display: flex; border-radius: 9px; background: #e8e6de; }
.filter-chips button { height: 30px; padding: 0 11px; border: 0; border-radius: 7px; background: transparent; color: var(--muted); cursor: pointer; font-size: 8px; font-weight: 700; }
.filter-chips button.is-active { background: white; color: var(--ink); box-shadow: 0 3px 9px rgba(48,51,47,.08); }
.mistake-list { display: grid; }
.mistake-row { min-height: 82px; padding: 12px 0; display: grid; grid-template-columns: 42px minmax(0,1fr) auto; align-items: center; gap: 13px; border-bottom: 1px solid var(--line); }
.mistake-row:last-child { border-bottom: 0; }
.mistake-row.mastered { opacity: .65; }
.mistake-copy > strong { display: block; font-size: 11px; }
.mistake-copy > small { display: block; margin-top: 7px; color: #8d6b62; font-size: 8px; }
.mistake-actions { display: flex; align-items: center; gap: 5px; }
.mistake-actions .button { min-height: 34px; }
.mistake-actions .icon-button { width: 34px; height: 34px; border: 1px solid var(--line); background: white; font-size: 10px; }
.empty-map { align-content: center; text-align: center; color: var(--muted); }
.empty-map span { font-size: 28px; }.empty-map p { margin: 8px 0 0; font-size: 10px; }

.empty-state { min-height: 330px; padding: 45px 20px; display: grid; place-items: center; text-align: center; }
.empty-state span { width: 60px; height: 60px; display: grid; place-items: center; margin: 0 auto 16px; border-radius: 18px; background: var(--sage-pale); font-size: 25px; }
.empty-state p { color: var(--muted); max-width: 420px; line-height: 1.6; font-size: 12px; }

.modal-backdrop { position: fixed; inset: 0; z-index: 50; padding: 22px; display: grid; place-items: center; background: rgba(29,32,29,.48); backdrop-filter: blur(7px); }
.modal-backdrop[hidden] { display: none; }
.modal-card { width: min(650px, 100%); max-height: calc(100vh - 44px); overflow: auto; position: relative; padding: 32px; border-radius: 21px; background: var(--surface); box-shadow: 0 30px 90px rgba(24,27,24,.24); animation: modalIn .22s ease both; }
@keyframes modalIn { from { opacity: 0; transform: translateY(8px) scale(.98); } }
.modal-close { position: absolute; top: 18px; right: 18px; width: 34px; height: 34px; border: 0; border-radius: 50%; background: #ebeae4; cursor: pointer; font-size: 20px; }
.modal-kicker { color: var(--muted); text-transform: uppercase; letter-spacing: .15em; font-size: 9px; font-weight: 700; margin-bottom: 8px; }
.modal-card h2 { margin-bottom: 8px; }
.modal-card > p { color: var(--muted); font-size: 12px; line-height: 1.6; }
fieldset { border: 0; padding: 0; margin: 25px 0; }
legend, .field > span { display: block; margin-bottom: 9px; font-size: 10px; font-weight: 700; color: #5f635d; text-transform: uppercase; letter-spacing: .07em; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field-wide { grid-column: 1 / -1; }
.field input { width: 100%; height: 43px; padding: 0 12px; border: 1px solid var(--line); border-radius: 10px; outline: none; background: white; }
.field input:focus { border-color: var(--sage); box-shadow: 0 0 0 3px rgba(145,166,148,.17); }
.modal-actions { display: flex; justify-content: flex-end; gap: 9px; margin-top: 25px; }

.concept-modal { width: min(760px,100%); }
.concept-modal-heading { display: flex; align-items: center; gap: 14px; margin-bottom: 22px; }
.concept-modal-heading h2 { margin: 0; }
.concept-symbol { width: 51px; height: 51px; display: grid; place-items: center; border-radius: 14px; background: var(--sage-pale); font: 600 22px ui-sans-serif, sans-serif; }
.explain-modes { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 16px; }
.mode-chip { padding: 8px 11px; border: 1px solid var(--line); border-radius: 30px; background: transparent; cursor: pointer; font-size: 9px; font-weight: 700; }
.mode-chip.is-active { background: var(--dark); border-color: var(--dark); color: white; }
.explanation-panel { min-height: 170px; padding: 20px; border-radius: 14px; background: #eeede7; color: #474c47; font-size: 12px; line-height: 1.75; }
.explanation-panel h3 { color: var(--ink); margin-bottom: 10px; }
.concept-explanation-fields { padding: 16px; border: 1px solid var(--line); border-radius: 11px; }
.concept-explanation-fields > p { margin: 0 0 14px; color: var(--muted); font-size: 8px; }
.concept-explanation-fields .field + .field { margin-top: 13px; }
.rubric-fields { padding: 16px; border: 1px solid var(--line); border-radius: 11px; }
.rubric-fields > p { margin: 0 0 13px; color: var(--muted); font-size: 8px; }
.rubric-fields .field + .field { margin-top: 12px; }
.rubric-feedback { margin-top: 11px; padding: 10px; border-radius: 8px; background: rgba(255,255,255,.55); }
.rubric-feedback span,.rubric-feedback small { display: block; }.rubric-feedback span { font-size: 9px; font-weight: 800; }.rubric-feedback small { margin-top: 4px; font-size: 8px; }
.concept-study-summary { margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--line); }
.concept-evidence { display: grid; grid-template-columns: repeat(4,1fr); gap: 8px; }
.concept-evidence > div { padding: 10px; border-radius: 9px; background: #eeede7; }
.concept-evidence span,.concept-evidence strong { display: block; }
.concept-evidence span { color: var(--muted); font-size: 7px; text-transform: uppercase; }
.concept-evidence strong { margin-top: 4px; font-size: 15px; }
.concept-study-actions { margin-top: 10px; display: flex; flex-wrap: wrap; gap: 7px; }

.toast { position: fixed; z-index: 100; left: 50%; bottom: 28px; transform: translate(-50%, 20px); padding: 12px 17px; border-radius: 10px; background: var(--dark); color: white; font-size: 11px; opacity: 0; pointer-events: none; transition: .22s ease; box-shadow: var(--shadow); }
.toast button { margin-left: 10px; border: 0; background: transparent; color: #cfe0d2; cursor: pointer; font-weight: 800; }
.toast.is-visible { opacity: 1; transform: translate(-50%, 0); }

.back-button { border: 0; padding: 0; margin-bottom: 18px; background: transparent; color: var(--muted); cursor: pointer; font-size: 11px; font-weight: 700; }
.back-button:hover { color: var(--ink); }
.course-hero { --hero-accent: var(--sage); min-height: 245px; padding: clamp(28px, 4vw, 46px); display: flex; align-items: center; justify-content: space-between; gap: 30px; position: relative; overflow: hidden; border-radius: 22px; background: var(--dark); color: white; }
.course-hero.anatomy { --hero-accent: #8eabb4; }
.course-hero.general { --hero-accent: #d1a66f; }
.course-hero::before, .course-hero::after { content: ""; position: absolute; border-radius: 50%; border: 1px solid color-mix(in srgb, var(--hero-accent) 35%, transparent); }
.course-hero::before { width: 340px; height: 340px; right: -130px; top: -180px; }
.course-hero::after { width: 220px; height: 220px; right: 70px; bottom: -170px; }
.course-hero-copy { position: relative; z-index: 1; }
.course-hero .course-tag { width: max-content; margin-bottom: 18px; color: #f0f1ed; background: color-mix(in srgb, var(--hero-accent) 28%, transparent); }
.course-hero h1 { margin-bottom: 11px; font-size: clamp(34px, 5vw, 54px); }
.course-hero p { max-width: 570px; margin-bottom: 21px; color: #c5cdc7; line-height: 1.6; font-size: 13px; }
.course-hero-meta { display: flex; align-items: center; gap: 10px; color: #aeb9b1; font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; }
.course-hero-meta i { width: 4px; height: 4px; border-radius: 50%; background: var(--hero-accent); }
.course-manage-button { margin-top: 22px; height: 34px; padding: 0 12px; border: 1px solid rgba(255,255,255,.17); border-radius: 9px; background: rgba(255,255,255,.07); color: #d8ded9; cursor: pointer; font-size: 9px; font-weight: 700; }
.course-manage-button:hover { background: rgba(255,255,255,.14); color: white; }
.course-tabs { margin: 20px 0; display: flex; gap: 5px; border-bottom: 1px solid var(--line); }
.course-tabs button { min-height: 47px; padding: 0 16px; display: flex; align-items: center; gap: 7px; position: relative; border: 0; background: transparent; color: var(--muted); cursor: pointer; font-size: 11px; font-weight: 700; }
.course-tabs button::after { content: ""; position: absolute; left: 15px; right: 15px; bottom: -1px; height: 2px; transform: scaleX(0); background: var(--dark); transition: transform .18s ease; }
.course-tabs button.is-active { color: var(--ink); }
.course-tabs button.is-active::after { transform: scaleX(1); }
.course-tabs button span { min-width: 17px; height: 17px; padding: 0 4px; display: grid; place-items: center; border-radius: 20px; background: var(--amber-pale); font-size: 8px; }

.course-detail-grid { display: grid; grid-template-columns: minmax(0,1.45fr) minmax(250px,.65fr); gap: 16px; }
.simplified-course-overview { grid-template-columns: 1fr 1fr; }.simplified-course-overview .learning-card, .simplified-course-overview .syllabus-preview { grid-column: 1 / -1; }.simplified-course-overview .topic-card { grid-column: 1 / -1; }
.simple-topic-list { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }.simple-topic-list button { min-height: 48px; padding: 10px 12px; display: flex; align-items: center; justify-content: space-between; gap: 10px; border: 1px solid var(--line); border-radius: 9px; background: #f8f7f3; cursor: pointer; color: var(--ink); text-align: left; }.simple-topic-list b { color: var(--muted); }
.learning-card, .course-side-card, .topic-card { padding: 25px; }
.learning-card .course-icon { background: var(--sage-pale); }
.learning-card > p { max-width: 620px; color: var(--muted); font-size: 12px; line-height: 1.7; }
.learning-actions { display: flex; gap: 9px; margin-top: 23px; }
.course-side-card { background: #e7e5dc; }
.next-session-time { display: flex; align-items: end; gap: 7px; margin: 25px 0 8px; }
.next-session-time strong { font-size: 42px; line-height: .9; letter-spacing: -.06em; }
.next-session-time span { color: var(--muted); font-size: 10px; }
.course-side-card > h3 { margin: 20px 0 6px; }
.course-side-card > p, .small-complete p { color: var(--muted); font-size: 10px; }
.small-complete { padding-top: 23px; text-align: center; }
.small-complete > span { width: 44px; height: 44px; display: grid; place-items: center; margin: auto; border-radius: 50%; background: var(--sage-pale); }
.topic-card { grid-column: 1; }
.topic-list { display: grid; }
.topic-row { min-height: 61px; display: grid; grid-template-columns: minmax(145px, .9fr) 1fr 40px; align-items: center; gap: 15px; border-bottom: 1px solid var(--line); }
.topic-row:last-child { border-bottom: 0; }
.topic-row strong, .topic-row small { display: block; }
.topic-row strong { font-size: 11px; }
.topic-row small { margin-top: 3px; color: var(--muted); font-size: 9px; }
.topic-row b { text-align: right; font-size: 10px; }
.topic-progress { height: 4px; overflow: hidden; border-radius: 4px; background: #e3e3dd; }
.topic-progress span { display: block; height: 100%; border-radius: inherit; background: var(--sage); }
.mini-connections { min-height: 155px; position: relative; margin: 14px 0; }
.mini-connections::before { content: "Core concept"; width: 76px; height: 76px; display: grid; place-items: center; position: absolute; left: 50%; top: 50%; transform: translate(-50%,-50%); border-radius: 50%; background: var(--dark); color: white; font-size: 9px; font-weight: 700; }
.mini-connections span { position: absolute; padding: 7px 9px; border-radius: 8px; background: rgba(255,255,255,.65); font-size: 8px; font-weight: 700; }
.mini-connections span:nth-child(1) { top: 2px; left: 5px; }
.mini-connections span:nth-child(2) { top: 8px; right: 0; }
.mini-connections span:nth-child(3) { bottom: 6px; left: 0; }
.mini-connections span:nth-child(4) { bottom: 0; right: 3px; }
.syllabus-preview { padding: 25px; }
.syllabus-preview { grid-column: 1; }
.syllabus-preview > p { margin: 0; color: var(--muted); font-size: 11px; line-height: 1.75; white-space: pre-line; }
.syllabus-empty { min-height: 95px; display: flex; align-items: center; justify-content: center; gap: 10px; border: 1px dashed #c7c7c0; border-radius: 11px; color: var(--muted); text-align: center; }
.syllabus-empty > span { font-size: 20px; }
.syllabus-empty p { max-width: 420px; margin: 0; font-size: 9px; line-height: 1.55; }

.question-count { min-width: 58px; text-align: right; }
.question-count strong, .question-count span { display: block; }
.question-count strong { font-size: 22px; }
.question-count span { color: var(--muted); font-size: 9px; }
.adaptive-practice { display: grid; grid-template-columns: minmax(0,1.55fr) minmax(220px,.55fr); gap: 25px; }
.adaptive-practice .quiz-card { min-width: 0; }
.adaptive-practice .concept-evidence { grid-template-columns: 1fr 1fr; margin: 18px 0; }
.practice-feedback-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 9px; margin-top: 12px; }
.practice-empty { padding: 22px 25px; display: grid; grid-template-columns: auto minmax(0,1fr) auto; align-items: center; gap: 17px; border-style: dashed; }
.practice-empty > span { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 12px; background: var(--amber-pale); font-size: 20px; }
.practice-empty h2 { margin: 4px 0; }.practice-empty p { margin: 0; color: var(--muted); font-size: 9px; line-height: 1.55; }
.practice-empty-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; }
.sample-practice-label { margin: 20px 0 8px; text-align: center; }
.sample-practice-label span { padding: 6px 10px; border-radius: 15px; background: #e8e6de; color: var(--muted); font-size: 8px; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; }
#conceptForm textarea { width: 100%; min-height: 115px; resize: vertical; padding: 13px; border: 1px solid var(--line); border-radius: 10px; outline: none; background: #f8f7f3; font-size: 12px; line-height: 1.6; }
#conceptForm textarea:focus, #conceptForm input:focus { border-color: var(--sage); box-shadow: 0 0 0 3px rgba(145,166,148,.14); }
.answer-feedback { margin-top: 12px; padding: 13px 15px; border-radius: 10px; background: var(--amber-pale); font-size: 10px; line-height: 1.55; }
.answer-feedback strong { display: block; margin-bottom: 4px; font-size: 10px; }
.answer-feedback p { margin: 0; }
.answer-feedback.correct { background: var(--sage-pale); color: #415847; }
.answer-feedback.needs-work { background: var(--amber-pale); color: #75582f; }
.ai-marking-progress { margin-top: 12px; padding: 15px; display: flex; align-items: center; gap: 12px; border-radius: 11px; background: var(--blue-pale); color: #456b78; }
.ai-marking-progress > span { width: 31px; height: 31px; display: grid; place-items: center; flex: 0 0 auto; border-radius: 50%; background: white; animation: ai-pulse 1.15s ease-in-out infinite alternate; }
.ai-marking-progress strong, .ai-marking-progress small { display: block; }.ai-marking-progress strong { font-size: 10px; }.ai-marking-progress small { margin-top: 3px; font-size: 8px; }
.answer-feedback.ai-grade { padding: 17px; }
.ai-grade-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 8px; }
.ai-grade-heading strong { margin: 0; font-size: 12px; }.ai-grade-heading span { padding: 5px 8px; border-radius: 20px; background: rgba(255,255,255,.62); font-size: 10px; font-weight: 800; }
.ai-grade > p { line-height: 1.7; }
.ai-grade-points { margin-top: 13px; padding: 11px 12px; border-radius: 9px; background: rgba(255,255,255,.55); }
.ai-grade-points strong { font-size: 9px; }.ai-grade-points ul { margin: 6px 0 0; padding-left: 17px; }.ai-grade-points li { margin: 4px 0; }
.corrected-answer { margin-top: 13px; padding-top: 12px; border-top: 1px solid rgba(70,80,70,.13); }.corrected-answer p { line-height: 1.7; }
.ai-citations { margin-top: 12px; }.ai-citations summary { cursor: pointer; font-size: 9px; font-weight: 800; }.ai-citations blockquote { margin: 8px 0 0; padding: 9px 11px; border-left: 3px solid rgba(70,90,75,.35); background: rgba(255,255,255,.48); }.ai-citations cite { display: block; margin-top: 5px; font-size: 8px; }
.ai-confidence { display: block; margin-top: 12px; opacity: .78; }.ai-error .button { margin-top: 10px; }
@keyframes ai-pulse { to { transform: scale(1.08); box-shadow: 0 0 0 6px rgba(255,255,255,.35); } }

.roots-lines { position: absolute; left: 86px; top: 101px; display: grid; gap: 13px; }
.roots-lines i { width: 73px; height: 2px; display: block; transform: rotate(calc((var(--i, 0) - 2) * 4deg)); background: #6f939d; }
.roots-lines i:nth-child(1) { --i:0; }.roots-lines i:nth-child(2) { --i:1; }.roots-lines i:nth-child(3) { --i:2; }.roots-lines i:nth-child(4) { --i:3; }.roots-lines i:nth-child(5) { --i:4; }
.line-a { width: 28%; left: 23%; top: 33%; transform: rotate(24deg); }.line-b { width: 25%; left: 23%; top: 50%; }.line-c { width: 28%; left: 23%; top: 67%; transform: rotate(-24deg); }
.line-d { width: 30%; left: 53%; top: 49%; transform: rotate(-16deg); }.line-e { width: 30%; left: 53%; top: 51%; transform: rotate(19deg); }
.answer-options { display: grid; gap: 8px; }
.answer-options button { min-height: 43px; padding: 0 13px; border: 1px solid var(--line); border-radius: 10px; background: white; cursor: pointer; text-align: left; font-size: 10px; font-weight: 700; }
.answer-options button:hover, .answer-options button.is-selected { border-color: var(--blue); background: var(--blue-pale); }
.answer-options button.is-correct { border-color: var(--sage); background: var(--sage-pale); }
.hotspot-edit-main { min-width: 0; padding: 0; border: 0; background: transparent; cursor: pointer; text-align: left; }


.concepts-layout, .materials-layout { display: grid; grid-template-columns: minmax(0,1.4fr) minmax(250px,.6fr); gap: 17px; }
.concept-library, .add-concept-card, .material-drop-card, .material-list-card { padding: 25px; }
.chapter-list { display: grid; gap: 22px; }
.chapter-section { padding-top: 17px; border-top: 1px solid var(--line); }
.chapter-section:first-child { padding-top: 0; border-top: 0; }
.chapter-heading { margin-bottom: 10px; display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.chapter-heading h3 { margin: 0; font-size: 12px; }
.chapter-heading span { display: block; margin-top: 3px; color: var(--muted); font-size: 8px; }
.chapter-empty { grid-column: 1 / -1; margin: 0; padding: 24px; border: 1px dashed var(--line); border-radius: 12px; color: var(--muted); text-align: center; font-size: 9px; }
.concept-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; }
.concept-tile { min-height: 112px; padding: 15px; display: grid; grid-template-columns: 25px minmax(0,1fr) auto auto; align-content: center; align-items: center; gap: 4px 9px; border: 1px solid var(--line); border-radius: 12px; background: white; text-align: left; }
.simple-concept-tile { min-height: 82px; grid-template-columns: 25px minmax(0,1fr) auto; }
.concept-tile:hover { border-color: var(--sage); transform: translateY(-1px); }
.concept-tile.is-dragging { opacity: .35; }
.concept-tile > span { width: 25px; height: 25px; display: grid; place-items: center; border-radius: 7px; background: var(--sage-pale); font-size: 8px; font-weight: 700; }
.concept-tile strong { font-size: 11px; }
.concept-tile small { color: var(--muted); font-size: 8px; }
.concept-main { min-width: 0; padding: 0; display: grid; gap: 4px; border: 0; background: transparent; cursor: pointer; text-align: left; }
.concept-main strong, .concept-main small { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.concept-metrics { min-width: 55px; text-align: right; }
.concept-metrics b, .concept-metrics small { display: block; }
.concept-metrics b { font-size: 10px; }
.concept-edit { width: 27px; height: 27px; border: 0; border-radius: 7px; background: #efeee8; cursor: pointer; font-size: 9px; }
.concept-order-actions { display: flex; align-items: center; gap: 3px; }
.concept-order-actions > button { width: 27px; height: 27px; border: 0; border-radius: 7px; background: #efeee8; cursor: pointer; font-size: 9px; }
.concept-order-actions > button:disabled { opacity: .35; cursor: default; }
.add-concept-card { background: #e9e6dd; }
.add-concept-card > p { color: var(--muted); font-size: 11px; line-height: 1.6; }
#conceptForm { display: grid; gap: 9px; margin-top: 20px; }
#conceptForm input { width: 100%; height: 43px; padding: 0 12px; border: 1px solid var(--line); border-radius: 10px; outline: none; background: white; font-size: 11px; }
#conceptForm textarea { min-height: 86px; background: white; }
.concept-number-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.concept-number-fields label > span { display: block; margin-bottom: 6px; color: var(--muted); font-size: 8px; font-weight: 700; text-transform: uppercase; }
.concept-number-fields input { width: 100%; height: 39px; padding: 0 10px; border: 1px solid var(--line); border-radius: 9px; background: white; }

.material-drop-card { min-height: 330px; display: flex; align-items: center; justify-content: center; gap: 22px; border: 1px dashed #b9bab3; background: transparent; }
.material-drop-icon { width: 63px; height: 63px; flex: 0 0 auto; display: grid; place-items: center; border-radius: 18px; background: var(--sage-pale); font-size: 25px; }
.material-drop-card p { max-width: 440px; color: var(--muted); font-size: 11px; line-height: 1.6; }
.material-drop-card small { display: block; margin-top: 10px; color: var(--muted); font-size: 8px; }
.file-button { display: inline-grid; place-items: center; width: max-content; }
.file-button input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.material-list { display: grid; }
.material-row { min-height: 67px; display: grid; grid-template-columns: 38px minmax(0,1fr) auto auto; align-items: center; gap: 10px; border-bottom: 1px solid var(--line); }
.material-row > span { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 9px; background: var(--blue-pale); color: #4d6d76; font-size: 8px; font-weight: 800; }
.material-main { min-width: 0; padding: 0; border: 0; background: transparent; cursor: pointer; text-align: left; }
.material-main strong, .material-main small { display: block; }
.material-main strong { max-width: 230px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 10px; }
.material-main small { margin-top: 4px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--muted); font-size: 8px; }
.material-row > b { color: var(--muted); font-size: 8px; font-weight: 600; }
.material-job-button { height: 29px; padding: 0 8px; border: 1px solid var(--line); border-radius: 8px; background: white; cursor: pointer; color: var(--muted); font-size: 8px; font-weight: 700; }
.empty-materials { min-height: 220px; display: grid; place-content: center; text-align: center; color: var(--muted); }
.empty-materials > span { font-size: 29px; }
.empty-materials p { font-size: 10px; }
.material-summary { margin: 23px 0 18px; padding: 14px; display: flex; align-items: center; gap: 11px; border-radius: 12px; background: #eceae3; }
.material-summary > span { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 10px; background: var(--blue-pale); color: #4d6d76; font-size: 9px; font-weight: 800; }
.material-summary strong, .material-summary small { display: block; }
.material-summary strong { font-size: 10px; }
.material-summary small { margin-top: 4px; color: var(--muted); font-size: 8px; }
.material-preview { margin-top: 15px; padding: 18px; border: 1px solid var(--line); border-radius: 13px; }
.material-preview pre { max-height: 280px; overflow: auto; margin: 0; padding: 14px; border-radius: 9px; background: #f0efe9; color: #4f554f; font: 10px/1.7 ui-monospace, SFMono-Regular, Menlo, monospace; white-space: pre-wrap; word-break: break-word; }
.material-preview > p { margin: 11px 0 0; color: var(--muted); font-size: 8px; line-height: 1.55; }
.parser-pending { min-height: 150px; padding: 25px; display: flex; align-items: center; gap: 15px; border: 1px dashed #c5c5bd; border-radius: 13px; }
.parser-pending > span { width: 45px; height: 45px; flex: 0 0 auto; display: grid; place-items: center; border-radius: 12px; background: var(--amber-pale); font-size: 21px; }
.parser-pending h3 { margin-bottom: 5px; }
.parser-pending p { margin: 0; color: var(--muted); font-size: 9px; line-height: 1.6; }
.candidate-section { margin-top: 17px; padding: 18px; border-radius: 13px; background: var(--sage-pale); }
.candidate-section .card-heading p { margin: 4px 0 0; color: var(--muted); font-size: 8px; }.candidate-checks { margin: 13px 0; display: grid; grid-template-columns: 1fr 1fr; gap: 7px; }.candidate-checks label { min-height: 38px; padding: 8px 10px; display: flex; align-items: center; gap: 8px; border-radius: 8px; background: rgba(255,255,255,.65); font-size: 8px; }.candidate-empty p { margin-bottom: 0; color: var(--muted); font-size: 8px; }
.material-next-steps { margin-top: 17px; padding: 18px; border-radius: 13px; background: var(--dark); color: white; }.material-next-steps .eyebrow { color: #aebbb2; }.material-next-steps > div:last-child { display: flex; flex-wrap: wrap; gap: 8px; }.material-next-steps .button-dark { background: white; color: var(--dark); }.material-next-steps .button-ghost { border-color: #68736c; color: white; }.material-next-steps .button:disabled { opacity: .4; }
.complete-reader-toolbar { margin: 18px 0 10px; display: flex; align-items: end; justify-content: space-between; gap: 12px; }.complete-reader-toolbar label { min-width: 180px; }.complete-reader-toolbar select { width: 100%; height: 41px; padding: 0 10px; border: 1px solid var(--line); border-radius: 9px; background: white; }.complete-reader-toolbar > span { color: var(--muted); font-size: 8px; }.complete-reader-content { min-height: 300px; max-height: 56vh; overflow: auto; padding: 20px; border: 1px solid var(--line); border-radius: 12px; background: #f0efe9; }.complete-reader-content:focus { outline: 3px solid rgba(145,166,148,.25); }.complete-reader-content h3 { margin-bottom: 13px; }.complete-reader-content pre { margin: 0; color: #424842; font: 10px/1.75 ui-monospace, SFMono-Regular, Menlo, monospace; white-space: pre-wrap; word-break: break-word; }.reader-nav { margin-top: 10px; display: flex; align-items: center; justify-content: center; gap: 12px; }.reader-nav span { color: var(--muted); font-size: 8px; }.search-scope { margin-bottom: 10px; padding: 10px 13px; display: flex; justify-content: space-between; align-items: center; gap: 10px; border-radius: 9px; background: var(--amber-pale); font-size: 8px; }.search-scope button { border: 0; background: transparent; cursor: pointer; font-weight: 800; }
.candidate-chips { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 15px; }
.candidate-chips span { padding: 7px 9px; border-radius: 8px; background: rgba(255,255,255,.7); color: #4f6254; font-size: 8px; font-weight: 700; }
.modal-actions .button:disabled { opacity: .45; cursor: not-allowed; transform: none; }
.image-tools-card { margin-top: 17px; padding: 17px; display: grid; grid-template-columns: minmax(220px,1fr) repeat(4,auto); align-items: center; gap: 10px; border-radius: 13px; background: var(--blue-pale); }
.image-tools-card h3 { margin-bottom: 4px; }
.image-tools-card p { margin: 0; color: var(--muted); font-size: 9px; }
.hotspot-editor-layout { display: grid; grid-template-columns: minmax(0,1.45fr) minmax(180px,.55fr); gap: 14px; margin-top: 20px; }
.hotspot-canvas { min-height: 390px; position: relative; display: grid; place-items: center; overflow: hidden; border-radius: 14px; background: #242824; cursor: crosshair; }
.hotspot-canvas img { display: block; max-width: 100%; max-height: 540px; object-fit: contain; }
.hotspot-image-stage { position: relative; display: inline-block; max-width: 100%; line-height: 0; }
.hotspot-image-stage img { width: auto; height: auto; }
.saved-hotspot { width: 28px; height: 28px; display: grid; place-items: center; position: absolute; transform: translate(-50%,-50%); border: 3px solid white; border-radius: 50%; background: var(--rose); color: white; box-shadow: 0 4px 14px rgba(26,28,26,.32); font-size: 9px; font-weight: 800; }
.saved-hotspot { cursor: pointer; }
@keyframes hotspotPulse { 50% { box-shadow: 0 0 0 11px rgba(182,95,82,.22); } }
.hotspot-list { padding: 16px; overflow: auto; border-radius: 14px; background: #eceae3; }
.hotspot-list-row { min-height: 49px; display: grid; grid-template-columns: 25px 1fr auto; align-items: center; gap: 8px; border-bottom: 1px solid rgba(80,83,77,.1); }
.hotspot-list-row > span { width: 22px; height: 22px; display: grid; place-items: center; border-radius: 50%; background: white; font-size: 8px; font-weight: 800; }
.hotspot-list-row strong, .hotspot-list-row small { display: block; }
.hotspot-list-row strong { font-size: 9px; }
.hotspot-list-row small { max-width: 105px; margin-top: 3px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--muted); font-size: 7px; }
.hotspot-list-row button { width: 24px; height: 24px; border: 0; border-radius: 50%; background: white; cursor: pointer; }
.hotspot-form-overlay { position: absolute; inset: 0; z-index: 5; display: grid; place-items: center; padding: 20px; background: rgba(31,35,31,.54); backdrop-filter: blur(5px); }
.hotspot-form-overlay form { width: min(400px,100%); padding: 22px; border-radius: 15px; background: var(--surface); box-shadow: var(--shadow); }
.hotspot-form-overlay .field { display: block; margin-top: 13px; }
.hotspot-form-overlay input, .hotspot-form-overlay textarea { width: 100%; padding: 10px; border: 1px solid var(--line); border-radius: 9px; background: white; }

.material-upload-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 9px; margin: 15px 0 8px; }
.material-provenance { margin: 16px 0; padding: 16px; border: 1px solid #d8dfd0; border-radius: 14px; background: #f2f6ec; }
.material-provenance > div:first-child { display: flex; justify-content: space-between; gap: 14px; }
.material-provenance span, .material-provenance dt { color: var(--muted); font-size: 9px; font-weight: 800; text-transform: uppercase; letter-spacing: .05em; }
.material-provenance dl { display: grid; gap: 8px; margin: 13px 0; }
.material-provenance dl div { display: grid; grid-template-columns: 80px 1fr; gap: 10px; }
.material-provenance dd { margin: 0; font-size: 10px; line-height: 1.5; }
.material-provenance a { color: var(--accent); font-size: 10px; font-weight: 800; }

.visual-question-figures { display: grid; grid-template-columns: minmax(0,1fr); gap: 14px; }
.visual-question-figures.is-multi { grid-template-columns: repeat(2,minmax(0,1fr)); }
.visual-question-frame { margin: 0; overflow: hidden; border: 1px solid var(--line); border-radius: 16px; background: #eff0eb; }
.visual-image-viewport { min-height: 180px; padding: 52px 18px 20px; display: grid; place-items: center; overflow: auto; background: #20231f; }
.visual-image-stage { position: relative; display: inline-block; max-width: 100%; line-height: 0; }
.visual-image-stage img { display: block; width: auto; height: auto; max-width: 100%; max-height: min(70vh,760px); object-fit: contain; }
.visual-image-stage.is-locatable { cursor: crosshair; touch-action: manipulation; }
.visual-image-stage.is-locatable:focus-visible { outline: 4px solid rgba(61,99,87,.34); outline-offset: -4px; }
.visual-marker, .visual-selected-point { position: absolute; z-index: 3; display: grid; place-items: center; border-radius: 50%; color: white; font-weight: 900; line-height: 1; }
.visual-marker { width: 40px; height: 40px; transform: translate(-50%,calc(-100% - 9px)); border: 4px solid rgba(255,255,255,.96); background: rgba(229,185,47,.42); color: #161a17; box-shadow: 0 0 0 2px rgba(22,26,23,.86), 0 6px 18px rgba(0,0,0,.36); font-size: 15px; }
.visual-marker.is-target-point { background: rgba(201,77,66,.42); color: #fff; }
.visual-marker.is-target-point.is-secondary-point { width: 34px; height: 34px; font-size: 13px; }
.visual-marker::after { content: ""; position: absolute; left: 50%; top: 100%; width: 0; height: 0; transform: translateX(-50%); border-left: 7px solid transparent; border-right: 7px solid transparent; border-top: 9px solid #fff; filter: drop-shadow(0 2px 0 #161a17); }
.visual-marker.is-emphasized { animation: visualMarkerFocus .58s ease-in-out 3; }
@keyframes visualMarkerFocus { 50% { transform: translate(-50%,calc(-100% - 9px)) scale(1.32); background: #fff16b; box-shadow: 0 0 0 6px rgba(255,241,107,.38), 0 0 0 2px #161a17, 0 8px 22px rgba(0,0,0,.55); } }
.visual-official-label-mask { position: absolute; z-index: 4; min-width: 34px; min-height: 24px; display: grid; place-items: center; overflow: hidden; border: 3px solid #fff; border-radius: 7px; background: #20231f; color: #fff; box-shadow: 0 0 0 2px #10120f, 0 4px 14px rgba(0,0,0,.42); font-size: 14px; font-weight: 900; line-height: 1; }
.visual-official-label-mask.has-marker { background: #20231f; color: transparent; }
.visual-mask-marker { width: 34px; height: 34px; display: grid; place-items: center; border: 3px solid rgba(255,255,255,.94); border-radius: 50%; background: rgba(229,185,47,.42); color: #161a17; box-shadow: 0 0 0 2px rgba(22,26,23,.82), 0 4px 12px rgba(0,0,0,.3); }
.visual-official-label-mask.is-blank { background: #20231f; color: transparent; }
.visual-official-label-mask.is-emphasized { animation: officialLabelFocus .58s ease-in-out 3; }
@keyframes officialLabelFocus { 50% { transform: scale(1.2); background: #fff16b; color: #161a17; box-shadow: 0 0 0 6px rgba(255,241,107,.36), 0 0 0 2px #10120f, 0 6px 18px rgba(0,0,0,.52); } }
.visual-selected-point { width: 24px; height: 24px; transform: translate(-50%,-50%); border: 3px solid #fff; background: #2d735f; box-shadow: 0 5px 15px rgba(0,0,0,.3); animation: hotspotPulse 1.1s ease infinite; }
.visual-question-frame figcaption { padding: 10px 12px; display: grid; grid-template-columns: auto 1fr; align-items: center; gap: 3px 8px; }
.visual-question-frame figcaption span { color: var(--accent); font-size: 8px; font-weight: 900; text-transform: uppercase; }
.visual-question-frame figcaption strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 10px; }
.visual-question-frame figcaption small { grid-column: 1/-1; color: var(--muted); font-size: 8px; line-height: 1.4; }
.visual-marker-guide { grid-column: 1/-1; margin-top: 7px; padding: 9px 10px; display: flex; align-items: center; justify-content: space-between; gap: 10px; border-radius: 10px; background: #fff; }
.visual-marker-guide > span { min-width: 0; color: var(--ink); text-transform: none; }
.visual-marker-guide > span strong, .visual-marker-guide > span small { display: block; }
.visual-marker-guide > span strong { font-size: 9px; }
.visual-marker-guide > span small { margin-top: 2px; color: var(--muted); font-size: 8px; font-weight: 500; text-transform: none; }
.visual-marker-guide > div { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 6px; }
.visual-marker-guide button { width: 34px; height: 34px; border: 2px solid #161a17; border-radius: 50%; background: #e5b92f; color: #161a17; cursor: pointer; font-size: 12px; font-weight: 900; }
.visual-marker-guide button:focus-visible { outline: 3px solid rgba(83,100,220,.3); outline-offset: 2px; }
.visual-answer-key { grid-column: 1/-1; margin-top: 5px; display: flex; flex-wrap: wrap; gap: 6px; }
.visual-answer-key span { padding: 5px 7px; display: flex; align-items: center; gap: 5px; border-radius: 8px; background: white; color: var(--text); font-size: 8px; font-weight: 700; text-transform: none; }
.visual-answer-key b { width: 18px; height: 18px; display: grid; place-items: center; border-radius: 50%; background: #a9473b; color: white; }
.visual-location-instruction { padding: 14px; display: flex; align-items: center; gap: 12px; border: 1px solid #cbd9d3; border-radius: 13px; background: #edf5f1; }
.visual-location-instruction > span { width: 32px; height: 32px; display: grid; place-items: center; border-radius: 50%; background: var(--accent); color: white; }
.visual-location-instruction strong, .visual-location-instruction small { display: block; }
.visual-location-instruction strong { font-size: 10px; }
.visual-location-instruction small { margin-top: 3px; color: var(--muted); font-size: 8px; line-height: 1.5; }

.visual-source-picker { margin: 0; padding: 15px; display: grid; gap: 12px; border: 1px solid var(--line); border-radius: 14px; }
.visual-selection-toolbar { padding: 11px 12px; display: flex; align-items: center; justify-content: space-between; gap: 14px; border-radius: 11px; background: #eef1f7; }
.visual-selection-toolbar strong, .visual-selection-toolbar small { display: block; }
.visual-selection-toolbar strong { font-size: 10px; }
.visual-selection-toolbar small { margin-top: 3px; color: var(--muted); font-size: 8px; }
.visual-selection-toolbar > div:last-child, .visual-source-actions { display: flex; align-items: center; flex-wrap: wrap; justify-content: flex-end; gap: 8px; }
.visual-selection-toolbar .button { min-height: 34px; padding: 7px 11px; }
.visual-selection-toolbar .text-button:disabled, .visual-source-actions .text-button:disabled { opacity: .45; cursor: not-allowed; }
.exam-scope-status { margin-bottom: 14px; padding: 14px 15px; display: flex; align-items: center; justify-content: space-between; gap: 14px; border: 1px solid #e2cda2; border-radius: 13px; background: #fff8e7; }
.exam-scope-status.ready { border-color: #c9ddd3; background: #eef7f2; }
.exam-scope-status strong, .exam-scope-status small { display: block; }
.exam-scope-status strong { font-size: 10px; }
.exam-scope-status small { margin-top: 4px; color: var(--muted); font-size: 8px; line-height: 1.45; }
.visual-label-checks label.is-out-of-scope { opacity: .5; background: #eee; cursor: not-allowed; }
.exam-scope-review-list { display: grid; gap: 9px; max-height: 62vh; overflow: auto; padding: 4px; }
.exam-scope-item { padding: 13px; border: 1px solid var(--line); border-radius: 12px; background: #f8f8f6; }
.exam-scope-item.core { border-left: 4px solid #4f7667; }
.exam-scope-item.supporting { border-left: 4px solid #7e8fb1; }
.exam-scope-item.context { border-left: 4px solid #b9a06a; }
.exam-scope-item > label { display: flex; align-items: flex-start; gap: 9px; cursor: pointer; }
.exam-scope-item > label input { margin-top: 4px; }
.exam-scope-item > label span, .exam-scope-item > label strong, .exam-scope-item > label small { display: block; }
.exam-scope-item > label b { width: max-content; padding: 3px 6px; border-radius: 5px; background: #e7e9ed; color: var(--muted); font-size: 7px; text-transform: uppercase; }
.exam-scope-item > label strong { margin-top: 5px; font-size: 11px; }
.exam-scope-item > label small { margin-top: 3px; color: var(--muted); font-size: 8px; }
.exam-scope-item > p { margin: 8px 0; color: var(--muted); font-size: 9px; line-height: 1.5; }
.exam-scope-item > div { display: grid; gap: 5px; }
.exam-scope-item > div small { padding: 7px; border-radius: 7px; background: #fff; color: var(--muted); font-size: 7px; line-height: 1.45; }
.exam-scope-item q { display: block; margin-top: 3px; color: var(--ink); }
.visual-source-picker > legend { padding: 0 7px; font-size: 10px; font-weight: 900; }
.visual-source-card { padding: 12px; display: grid; grid-template-columns: 125px 1fr; gap: 14px; border-radius: 12px; background: #f3f2ed; }
.visual-source-card.visual-image-choice { position: relative; padding-left: 54px; border: 2px solid transparent; transition: border-color .18s ease, background .18s ease; }
.visual-source-card.visual-image-choice.is-selected { border-color: #6571cf; background: #f1f2fb; }
.visual-image-select { position: absolute; top: 8px; left: 7px; width: 42px; height: 42px; display: grid; place-items: center; cursor: pointer; }
.visual-image-select input { position: absolute; opacity: 0; pointer-events: none; }
.visual-image-select span { width: 24px; height: 24px; display: grid; place-items: center; border: 2px solid #aeb4bf; border-radius: 7px; background: #fff; color: transparent; font-size: 12px; font-weight: 900; }
.visual-image-select input:checked + span { border-color: #5965c4; background: #5965c4; color: #fff; }
.visual-image-select input:focus-visible + span { outline: 3px solid rgba(83,100,220,.24); outline-offset: 2px; }
.visual-image-select input:disabled + span { opacity: .42; cursor: not-allowed; }
.visual-image-label-summary { margin-top: 10px; display: flex; flex-wrap: wrap; gap: 6px; }
.visual-image-label-summary span { padding: 5px 7px; border-radius: 7px; background: #fff; color: var(--muted-strong); font-size: 8px; font-weight: 700; }
.visual-source-thumb { height: 112px; overflow: hidden; border-radius: 10px; background: #232622; }
.visual-source-thumb img { width: 100%; height: 100%; object-fit: contain; }
.visual-source-card > div > strong, .visual-source-card > div > small { display: block; }
.visual-source-card > div > small { margin-top: 4px; color: var(--muted); font-size: 8px; }
.visual-label-checks { margin-top: 10px; display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 7px; }
.visual-label-checks label { padding: 8px; display: flex; align-items: flex-start; gap: 7px; border-radius: 9px; background: white; cursor: pointer; }
.visual-label-checks input { margin-top: 2px; }
.visual-label-checks span, .visual-label-checks small { display: block; }
.visual-label-checks span { font-size: 9px; font-weight: 800; }
.visual-label-checks small { margin-top: 2px; color: var(--muted); font-size: 7px; font-weight: 500; }
.visual-type-checks { grid-template-columns: repeat(2,minmax(0,1fr)); }
.visual-editor-notice { margin: 12px 0; padding: 11px 13px; border-radius: 10px; background: #edf5f1; color: #35594e; font-size: 9px; line-height: 1.55; }

.label-removal-layout, .ai-label-review-layout { display: grid; grid-template-columns: minmax(0,1.3fr) minmax(260px,.7fr); gap: 14px; min-height: 420px; }
.label-mask-stage, .ai-label-image-stage { position: relative; align-self: start; overflow: hidden; display: grid; place-items: center; width: 100%; border-radius: 12px; background: #222622; line-height: 0; }
.label-mask-stage img, .ai-label-image-stage img { display: block; width: 100%; height: 100%; object-fit: contain; }
.manual-crop-stage { position: relative; width: min(100%, 980px); max-height: 70vh; margin: 16px auto 10px; overflow: hidden; border: 1px solid var(--line); border-radius: 14px; background: #222622; line-height: 0; cursor: crosshair; touch-action: none; user-select: none; }
.manual-crop-stage img { display: block; width: 100%; height: auto; max-height: 70vh; object-fit: contain; pointer-events: none; }
.manual-crop-selection { position: absolute; z-index: 1; min-width: 2px; min-height: 2px; border: 2px solid #fff; border-radius: 3px; background: rgba(67, 131, 93, .18); box-shadow: 0 0 0 9999px rgba(0,0,0,.32); pointer-events: none; }
.manual-crop-help { margin: 8px 0 14px; color: var(--muted); font-size: 10px; text-align: center; }
.ocr-mask { position: absolute; min-width: 8px; min-height: 8px; overflow: hidden; border: 1px solid rgba(255,255,255,.9); background: rgba(188,59,48,.12); color: transparent; pointer-events: none; }
.ocr-mask.is-selected { border: 2px solid #fff; background: rgba(204,54,42,.58); box-shadow: 0 0 0 2px rgba(146,35,28,.45); }
.ocr-region-list, .ai-label-review-list { max-height: 620px; overflow: auto; padding: 8px; border: 1px solid var(--line); border-radius: 12px; background: #f2f1ec; }
.ocr-region-list > label { min-height: 48px; padding: 8px; display: flex; align-items: flex-start; gap: 9px; border-bottom: 1px solid var(--line); cursor: pointer; }
.ocr-region-list > label > span { min-width: 0; display: grid; grid-template-columns: 24px 1fr; align-items: center; gap: 3px 7px; }
.ocr-region-list b { width: 22px; height: 22px; display: grid; place-items: center; grid-row: 1/3; border-radius: 50%; background: white; font-size: 8px; }
.ocr-region-list strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 9px; }
.ocr-region-list small { color: var(--muted); font-size: 7px; }
.cleaned-image-comparison { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 14px; }
.cleaned-image-comparison figure { margin: 0; overflow: hidden; border: 1px solid var(--line); border-radius: 12px; background: #222622; }
.cleaned-image-comparison img { display: block; width: 100%; height: 420px; object-fit: contain; }
.cleaned-image-comparison figcaption { padding: 10px 12px; background: #f2f1ec; font-size: 9px; font-weight: 800; }
.ai-label-marker { width: 29px; height: 29px; position: absolute; transform: translate(-50%,-50%); display: grid; place-items: center; border: 3px solid #fff; border-radius: 50%; background: #b14d42; color: #fff; box-shadow: 0 4px 12px rgba(0,0,0,.32); font-size: 9px; font-weight: 900; line-height: 1; }
.ai-label-marker.is-muted { opacity: .22; filter: grayscale(1); }
.ai-label-review-list > article { padding: 11px 7px; display: grid; grid-template-columns: 30px minmax(0,1fr); gap: 8px; border-bottom: 1px solid var(--line); }
.ai-label-select { padding-top: 26px; display: grid; justify-items: center; gap: 5px; cursor: pointer; }
.ai-label-select span { min-width: 24px; min-height: 24px; padding: 4px 6px; display: grid; place-items: center; border-radius: 12px; background: #fff; font-size: 8px; font-weight: 900; }
.ai-label-review-list .field { margin-bottom: 7px; }
.ai-label-review-list input, .ai-label-review-list textarea { width: 100%; }
.official-marker-summary { margin-bottom: 7px; display: flex; align-items: center; justify-content: space-between; gap: 8px; color: var(--muted); font-size: 8px; }
.official-marker-summary span { padding: 3px 7px; border-radius: 8px; background: #e8edf6; color: #334a73; font-weight: 900; }
.ai-label-evidence { display: grid; align-items: flex-start; gap: 5px; }
.ai-label-evidence b { flex: 0 0 auto; padding: 4px 6px; border-radius: 6px; background: #dce8e1; color: #315e50; font-size: 7px; }
.ai-label-evidence small { color: var(--muted); font-size: 7px; line-height: 1.45; }
.official-draft-edit-actions { margin-top: 8px; }
.official-draft-edit-actions button, .official-add-draft button { min-height: 28px; padding: 5px 8px; border: 1px solid #d8bebe; border-radius: 7px; background: #fffafa; color: #944747; cursor: pointer; font-size: 8px; font-weight: 800; }
.official-add-draft { margin: 9px 7px 4px 45px; padding: 11px; display: grid; gap: 5px; border: 1px dashed #aab9c9; border-radius: 9px; background: #f7fafc; }
.official-add-draft strong { font-size: 9px; }
.official-add-draft small { color: var(--muted); font-size: 8px; line-height: 1.45; }
.official-add-draft button { justify-self: start; border-color: #b6c9d9; background: #fff; color: #3d6784; }
.official-target-actions { margin-top: 8px; display: flex; flex-wrap: wrap; gap: 6px; }
.official-target-actions button { min-height: 29px; padding: 5px 8px; border: 1px solid #c9d0dc; border-radius: 7px; background: #fff; color: var(--ink); cursor: pointer; font-size: 8px; font-weight: 800; }
.official-target-actions button:disabled { opacity: .42; cursor: default; }
.official-image-meta { margin: 14px 0; padding: 14px; border: 1px solid var(--line); border-radius: 12px; background: #f7f8fa; }
.official-name-review-layout, .official-locator-layout { display: grid; grid-template-columns: minmax(0,1.35fr) minmax(280px,.65fr); gap: 16px; align-items: start; }
.official-name-review-image, .official-locator-stage { overflow: hidden; position: relative; width: 100%; border-radius: 8px; background: #20231f; line-height: 0; }
.official-name-review-image img, .official-locator-stage img { display: block; width: 100%; height: auto; user-select: none; -webkit-user-drag: none; -webkit-touch-callout: none; touch-action: none; pointer-events: none; }
.official-batch-review-layout { display:grid; grid-template-columns:minmax(280px,.72fr) minmax(0,1.28fr); gap:16px; align-items:start; }
.official-batch-review-image { position:sticky; top:0; overflow:hidden; width:100%; border-radius:10px; background:#20231f; line-height:0; }
.official-batch-review-image img { display:block; width:100%; height:auto; user-select:none; -webkit-user-drag:none; -webkit-touch-callout:none; touch-action:none; pointer-events:none; }
.official-batch-table-wrap { overflow:auto; max-height:640px; border:1px solid var(--line); border-radius:12px; background:#f7f8fa; }
.official-batch-table { width:100%; min-width:1040px; border-collapse:separate; border-spacing:0; font-size:9px; }
.official-batch-table th { position:sticky; top:0; z-index:1; padding:10px 8px; border-bottom:1px solid var(--line); background:#edf0f4; color:var(--muted); text-align:left; text-transform:uppercase; letter-spacing:.06em; font-size:8px; }
.official-batch-table td { padding:8px; vertical-align:top; border-bottom:1px solid var(--line); background:#fff; }
.official-batch-table tr:last-child td { border-bottom:0; }
.official-batch-table tr.is-ai-updated td { background:#fff9df; }
.official-batch-table input, .official-batch-table select, .official-batch-table textarea { box-sizing:border-box; width:100%; min-width:92px; min-height:32px; padding:6px 7px; border:1px solid #d5dce5; border-radius:8px; background:#fff; color:var(--ink); font:inherit; }.official-batch-table textarea { min-height:44px; resize:vertical; }
.official-batch-table td:nth-child(1) { min-width:106px; }.official-batch-table td:nth-child(2), .official-batch-table td:nth-child(3), .official-batch-table td:nth-child(5) { min-width:148px; }.official-batch-table td:nth-child(4) { min-width:116px; }.official-batch-table td:nth-child(6) { min-width:190px; }.official-batch-table td:nth-child(7) { min-width:145px; }.official-batch-table td:nth-child(8) { min-width:58px; text-align:center; color:var(--muted); font-weight:800; }.official-batch-table td:nth-child(9) { width:36px; }
.official-review-select { display:flex; align-items:center; gap:6px; min-height:32px; font-weight:900; }.official-review-select input { width:auto; min-width:0; min-height:0; }.official-review-select span { white-space:nowrap; }
.official-review-marker-input { margin-top:6px; min-width:78px !important; }
.official-review-point-actions { display:flex; flex-wrap:wrap; gap:4px; margin-top:5px; }.official-review-point-actions button { padding:4px 6px; border:1px solid #cbd7e2; border-radius:6px; background:#fff; color:#3d6784; cursor:pointer; font-size:8px; font-weight:800; }.official-review-point-actions button:disabled { opacity:.45; cursor:not-allowed; }
.official-review-split { display:flex; align-items:center; gap:4px; margin-top:6px; color:var(--muted); font-size:8px; line-height:1.3; }.official-review-split input { width:auto; min-width:0; min-height:0; }
.official-batch-table-wrap .official-add-draft { margin:10px; }
.question-image-policy { margin:0; padding:14px; border:1px solid #d8deec; border-radius:12px; background:#f8f9fd; }.question-image-policy legend { margin-bottom:7px; color:#566b8f; font-size:9px; font-weight:850; text-transform:uppercase; letter-spacing:.08em; }.question-image-policy > p { margin:0 0 10px; color:var(--muted); font-size:10px; line-height:1.5; }.question-image-policy-options { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:8px; }.question-image-policy-options > label { display:flex; align-items:flex-start; gap:7px; min-height:54px; padding:9px; border:1px solid #d8deec; border-radius:9px; background:#fff; cursor:pointer; }.question-image-policy-options > label:has(input:checked) { border-color:var(--accent); background:var(--accent-pale); box-shadow:0 0 0 3px rgba(83,100,220,.08); }.question-image-policy-options input { margin-top:2px; accent-color:var(--accent); }.question-image-policy-options strong, .question-image-policy-options small { display:block; }.question-image-policy-options strong { font-size:10px; }.question-image-policy-options small { margin-top:4px; color:var(--muted); font-size:8px; line-height:1.4; }.question-image-policy .question-image-upload { justify-self:start; margin-top:9px; }.question-image-policy .question-image-manual-choice input:disabled + span { opacity:.62; }
.official-review-actions { display:flex; flex-wrap:wrap; align-items:center; gap:9px; margin:12px 0; }.official-review-actions .ai-generation-feedback { flex:1 1 240px; min-height:0; margin:0; }
.official-ai-draft-marker { position: absolute; z-index: 2; width: 34px; height: 34px; display: grid; place-items: center; transform: translate(-50%,-50%); border: 0; border-radius: 50%; background: radial-gradient(circle, rgba(201,77,66,.28) 0 9px, transparent 10px); color: #fff; text-shadow: 0 1px 2px rgba(0,0,0,.6); font-size: 7px; font-weight: 900; line-height: 1; cursor: grab; pointer-events: auto; touch-action:none; user-select:none; -webkit-user-select:none; -webkit-touch-callout:none; }
.official-ai-draft-marker:active { cursor: grabbing; }
.official-ai-draft-marker.is-muted { opacity: .12; }
.official-locator-stage { cursor: crosshair; touch-action: manipulation; outline: 0; }
.official-locator-stage:focus-visible { box-shadow: 0 0 0 4px rgba(49,94,80,.4); }
.official-target-marker.locator-marker { width: 34px; height: 34px; border-width: 0; pointer-events: auto; background: radial-gradient(circle, rgba(201,77,66,.38) 0 10px, transparent 11px); box-shadow: none; text-shadow: 0 1px 2px rgba(0,0,0,.6); user-select:none; -webkit-user-select:none; -webkit-touch-callout:none; }
.official-target-marker.locator-marker.is-selected { width: 26px; height: 26px; background: rgba(201,77,66,.72); box-shadow: 0 0 0 5px rgba(229,185,47,.38),0 2px 8px rgba(0,0,0,.3); }
.official-locator-panel { position: sticky; top: 0; display: grid; gap: 14px; padding: 4px 0; }
.official-locator-panel h3 { margin: 0; font-size: 22px; line-height: 1.2; }
.official-locator-panel p { margin: 0; color: var(--muted); line-height: 1.5; }
.locator-point-picker { display: grid; gap: 7px; }
.locator-point-picker > span { color: var(--muted); font-size: 9px; }
.locator-point-picker button { padding: 9px 10px; display: flex; align-items: center; justify-content: space-between; gap: 8px; border: 1px solid var(--line); border-radius: 9px; background: #fff; color: var(--ink); cursor: pointer; text-align: left; }
.locator-point-picker button.is-active { border-color: #b58425; background: #fff7df; box-shadow: 0 0 0 2px rgba(229,185,47,.2); }
.locator-point-picker button strong { font-size: 10px; }
.locator-point-picker button small { color: var(--muted); font-size: 8px; }
.locator-multiple-toggle { display: grid; grid-template-columns: auto 1fr; gap: 10px; align-items: start; padding: 12px; border: 1px solid var(--line); border-radius: 8px; background: #f7f8fa; cursor: pointer; }
.locator-multiple-toggle input { width: 20px; height: 20px; margin-top: 1px; }
.locator-multiple-toggle span { display: grid; gap: 3px; }
.locator-multiple-toggle strong { font-size: 12px; }
.locator-multiple-toggle small, .locator-point-summary small { color: var(--muted); font-size: 10px; line-height: 1.45; }
.locator-multiple-toggle.compact-toggle { margin-bottom: 8px; padding: 9px; }
.locator-multiple-toggle.compact-toggle strong { font-size: 9px; }
.locator-multiple-toggle.compact-toggle small { font-size: 8px; }
.locator-marker-field { margin: 0; padding: 10px; border: 1px solid #b9c9db; border-radius: 8px; background: #f5f9fd; }
.locator-marker-field span { display: block; margin-bottom: 5px; color: #3f607d; font-size: 9px; font-weight: 800; }
.locator-marker-field input { width: 100%; min-height: 34px; }
.locator-marker-field small { display: block; margin-top: 5px; color: var(--muted); font-size: 8px; line-height: 1.4; }
.locator-point-summary { display: grid; gap: 4px; padding: 12px 0; border-block: 1px solid var(--line); }
.locator-point-summary strong { font-size: 12px; }
.official-target-marker { width: 27px; height: 27px; position: absolute; z-index: 3; display: grid; place-items: center; transform: translate(-50%,-50%); border: 3px solid rgba(255,255,255,.96); border-radius: 50%; background: rgba(201,77,66,.42); color: #fff; box-shadow: 0 3px 12px rgba(0,0,0,.3); font-size: 8px; font-weight: 900; line-height: 1; cursor: grab; pointer-events:auto; touch-action:none; }
.official-target-marker:active { cursor:grabbing; }

.licensed-image-search .field > div { display: grid; grid-template-columns: 1fr auto; gap: 8px; }
.licensed-image-search input { min-width: 0; }
.licensed-image-results { margin: 18px 0; display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 12px; }
.licensed-image-result { overflow: hidden; display: grid; grid-template-rows: 170px 1fr; border: 1px solid var(--line); border-radius: 14px; background: #f7f6f2; }
.licensed-image-preview { position: relative; width: 100%; height: 170px; overflow: hidden; background: #252824; }
.licensed-image-preview > img { position: relative; z-index: 1; width: 100%; height: 100%; display: block; object-fit: contain; background: #252824; }
.licensed-preview-unavailable { position: absolute; inset: 0; display: none; place-content: center; gap: 5px; padding: 20px; background: #252824; color: #f4f5f2; text-align: center; }
.licensed-preview-unavailable span, .licensed-preview-unavailable strong, .licensed-preview-unavailable small { display: block; }
.licensed-preview-unavailable span { font-size: 25px; }
.licensed-preview-unavailable strong { font-size: 10px; }
.licensed-preview-unavailable small { max-width: 260px; color: #b9c0bb; font-size: 8px; line-height: 1.5; }
.licensed-preview-unavailable button { justify-self: center; margin-top: 5px; padding: 6px 10px; border: 1px solid #7c8580; border-radius: 7px; background: transparent; color: #f4f5f2; font: inherit; cursor: pointer; }
.licensed-preview-unavailable button:disabled { opacity: .55; cursor: wait; }
.licensed-image-result.is-preview-failed .licensed-image-preview > img { display: none; }
.licensed-image-result.is-preview-failed .licensed-preview-unavailable { display: grid; }
.licensed-image-result > div { padding: 12px; display: flex; flex-direction: column; align-items: flex-start; gap: 7px; }
.licensed-image-result strong { font-size: 10px; line-height: 1.45; }
.licensed-image-result small { color: var(--muted); font-size: 8px; line-height: 1.5; }
.licensed-image-result > div > div { width: 100%; display: flex; justify-content: space-between; gap: 8px; font-size: 8px; }
.licensed-image-result .button { width: 100%; margin-top: auto; }
.licensed-search-empty { grid-column: 1/-1; min-height: 150px; display: grid; place-items: center; align-content: center; gap: 8px; border: 1px dashed var(--line); border-radius: 14px; color: var(--muted); text-align: center; }
.licensed-search-empty span { font-size: 28px; }
.licensed-search-empty p { max-width: 390px; margin: 0; font-size: 10px; line-height: 1.6; }
.licensed-search-empty.is-loading span { animation: hotspotPulse 1.2s ease infinite; }
.licensed-source-policy { padding: 14px; border-radius: 12px; background: #f1eee7; }
.licensed-source-policy strong { font-size: 10px; }
.licensed-source-policy p { margin: 4px 0 0; color: var(--muted); font-size: 9px; line-height: 1.55; }
.bassett-group { display:block; }
.bassett-entry-list { display:grid; gap:7px; margin-top:12px; }
.bassett-entry { display:flex; gap:10px; align-items:flex-start; padding:10px; border:1px solid var(--line); border-radius:10px; background:#fff; cursor:pointer; }
.bassett-entry:hover { border-color:var(--accent); background:#fafbff; }
.bassett-entry span { display:grid; gap:3px; }
.bassett-entry strong { font-size:10px; }
.bassett-entry small { color:var(--muted); font-size:8px; line-height:1.45; }
.bassett-selection-toolbar { position:sticky; top:0; z-index:2; display:flex; align-items:center; gap:12px; flex-wrap:wrap; padding:11px 13px; margin-bottom:12px; border:1px solid var(--line); border-radius:11px; background:rgba(255,255,255,.96); box-shadow:0 4px 14px rgba(30,38,50,.06); }
.bassett-selection-toolbar > strong { font-size:10px; }
.bassett-selection-toolbar > span { color:var(--muted); font-size:9px; }
.bassett-selection-toolbar > div { display:flex; gap:7px; margin-left:auto; }
.external-import-progress { margin:12px 0; padding:13px 14px; border:1px solid var(--line); border-radius:12px; background:#f8f9fb; }
.external-import-progress-heading { display:flex; justify-content:space-between; gap:12px; font-size:10px; }
.external-import-progress-heading span { color:var(--muted); font-size:9px; }
.external-import-progress-track { height:7px; margin:9px 0 7px; overflow:hidden; border-radius:99px; background:#e4e7ed; }
.external-import-progress-track b { display:block; width:4%; height:100%; border-radius:inherit; background:var(--accent); transition:width .35s ease; }
.external-import-progress-detail { color:var(--muted); font-size:8px; }

.question-bank-layout { display: grid; grid-template-columns: minmax(0,1.4fr) minmax(250px,.6fr); gap: 17px; }
.question-library, .question-actions-card { padding: 25px; }
.question-stats { display: grid; grid-template-columns: repeat(3,1fr); gap: 8px; margin-bottom: 18px; }
.question-stats > div { padding: 13px; border-radius: 10px; background: #eceae3; }
.question-filters { margin-bottom: 14px; display: grid; grid-template-columns: 1.4fr .8fr 1fr auto; gap: 7px; }
.question-filters input, .question-filters select { min-width: 0; height: 37px; padding: 0 9px; border: 1px solid var(--line); border-radius: 9px; background: white; font-size: 8px; }
.quiz-builder-options { display: grid; gap: 8px; padding: 15px; border-radius: 11px; background: #eceae3; }
.quiz-builder-options label { display: flex; align-items: center; gap: 8px; cursor: pointer; font-size: 9px; font-weight: 700; }
.quiz-title-row { display: flex; justify-content: space-between; align-items: center; gap: 15px; }
.quiz-title-row h2 { margin: 0; }
.quiz-timer { padding: 8px 11px; border-radius: 9px; background: #efd9d3; color: #8e5045; font: 800 11px ui-monospace, monospace; }
.quiz-timer.is-warning { background: #a75e50; color: white; animation: timer-pulse 1s infinite; }
@keyframes timer-pulse { 50% { opacity: .65; } }
.answer-feedback.exam-recorded { background: var(--blue-pale); color: #456b78; }
.question-stats strong, .question-stats span { display: block; }
.question-stats strong { font-size: 19px; }
.question-stats span { margin-top: 3px; color: var(--muted); font-size: 8px; text-transform: uppercase; letter-spacing: .06em; }
.question-list { display: grid; }
.question-row { min-height: 67px; display: grid; grid-template-columns: 30px minmax(0,1fr) auto; align-items: center; gap: 10px; border-bottom: 1px solid var(--line); }
.question-row > span { width: 27px; height: 27px; display: grid; place-items: center; border-radius: 8px; background: var(--sage-pale); font-size: 8px; font-weight: 800; }
.question-row strong, .question-row small { display: block; }
.question-row strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 10px; }
.question-row small { margin-top: 4px; color: var(--muted); font-size: 8px; text-transform: capitalize; }
.question-row button { width: 29px; height: 29px; border: 0; border-radius: 8px; background: #efeee8; cursor: pointer; }
.question-actions-card { background: var(--amber-pale); }
.question-actions-card > p { color: var(--muted); font-size: 10px; line-height: 1.65; }
.question-actions-card > .button { width: 100%; margin-top: 8px; }
.quiz-card { padding: 22px; border-radius: 14px; background: #eceae3; }
.quiz-meta { display: flex; justify-content: space-between; align-items: center; margin-bottom: 22px; }
.quiz-meta span { padding: 6px 9px; border-radius: 18px; background: var(--sage-pale); font-size: 8px; font-weight: 800; text-transform: uppercase; }
.quiz-meta small { color: var(--muted); font-size: 8px; }
.quiz-card > h2 { margin-bottom: 24px; font-size: 21px; line-height: 1.45; }
.quiz-card form > .button { display: block; margin: 16px 0 0 auto; }
.quiz-options { display: grid; gap: 8px; }
.quiz-options label { position: relative; cursor: pointer; }
.quiz-options input { position: absolute; opacity: 0; }
.quiz-options span { min-height: 44px; padding: 0 13px; display: flex; align-items: center; border: 1px solid var(--line); border-radius: 10px; background: white; font-size: 10px; font-weight: 700; }
.quiz-options input:checked + span { border-color: var(--sage); background: var(--sage-pale); box-shadow: 0 0 0 1px var(--sage); }
.mistake-choice > p { margin: 9px 0 22px; color: var(--muted); font-size: 10px; line-height: 1.65; }
.mistake-choice-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 11px; }
.mistake-choice-grid button { min-height: 165px; padding: 20px; display: flex; flex-direction: column; align-items: flex-start; border: 1px solid var(--line); border-radius: 14px; background: #f8f7f3; cursor: pointer; text-align: left; }
.mistake-choice-grid button:hover { border-color: var(--sage); background: var(--sage-pale); }
.mistake-choice-grid button > span { width: 36px; height: 36px; display: grid; place-items: center; margin-bottom: 15px; border-radius: 10px; background: white; font-size: 16px; }
.mistake-choice-grid strong { font-size: 13px; }
.mistake-choice-grid small { margin-top: 8px; color: var(--muted); font-size: 9px; line-height: 1.6; }
.mistake-answer-card > section { margin-top: 12px; padding: 16px; border: 1px solid var(--line); border-radius: 12px; background: #f8f7f3; }
.mistake-answer-card > section.reference-answer { border-color: #cad8cd; background: var(--sage-pale); }
.mistake-answer-card section > span { color: var(--muted); font-size: 8px; font-weight: 800; text-transform: uppercase; letter-spacing: .06em; }
.mistake-answer-card section p { margin: 7px 0 0; font-size: 10px; line-height: 1.7; white-space: pre-wrap; }
.mistake-answer-card section small { display: block; margin-top: 10px; color: var(--muted); font-size: 8px; line-height: 1.6; }
.mistake-answer-card footer { margin-top: 13px; display: flex; justify-content: space-between; color: var(--muted); font-size: 8px; }
.quiz-result { padding: 15px 4px 5px; text-align: center; }
.quiz-result p { max-width: 460px; margin: 0 auto 24px; color: var(--muted); font-size: 10px; line-height: 1.65; }
.exam-review { max-height: 360px; overflow-y: auto; margin: 22px 0; padding: 15px; border-radius: 13px; background: #eeece5; text-align: left; }
.exam-review .card-heading { position: sticky; top: -15px; z-index: 1; padding: 11px 0; background: #eeece5; }
.exam-review-item { padding: 13px 0; display: grid; grid-template-columns: 28px minmax(0,1fr) auto; gap: 10px; border-bottom: 1px solid var(--line); }
.exam-review-item:last-child { border-bottom: 0; }.exam-review-item > span { width: 25px; height: 25px; display: grid; place-items: center; border-radius: 7px; background: white; font-size: 8px; font-weight: 800; }
.exam-review-item strong,.exam-review-item small { display: block; }.exam-review-item strong { font-size: 9px; line-height: 1.45; }.exam-review-item small { margin-top: 4px; color: var(--muted); font-size: 8px; }
.exam-review-item p { max-width: none; margin: 8px 0 0; font-size: 8px; }.exam-review-item em { color: #8b574c; font-size: 9px; font-style: normal; font-weight: 800; }.exam-review-item.correct em { color: #4e6955; }

.trend-card, .weak-card { padding: 24px; }
.trend-chart { height: 225px; padding: 20px 8px 0; display: flex; align-items: end; justify-content: space-around; border-bottom: 1px solid var(--line); background-image: linear-gradient(to top, rgba(110,112,106,.08) 1px, transparent 1px); background-size: 100% 45px; }
.trend-column { height: 100%; flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: end; gap: 9px; }
.trend-bars { height: 180px; display: flex; align-items: end; gap: 3px; }
.trend-bars i { width: 11px; display: block; border-radius: 4px 4px 0 0; }
.trend-total { background: var(--blue); }.trend-correct { background: var(--sage); }
.trend-column > span { color: var(--muted); font-size: 8px; }
.chart-legend { padding-top: 12px; display: flex; justify-content: center; gap: 16px; }
.chart-legend span { display: flex; align-items: center; gap: 5px; color: var(--muted); font-size: 8px; }
.chart-legend i { width: 8px; height: 8px; border-radius: 2px; }.chart-legend i.total { background: var(--blue); }.chart-legend i.correct { background: var(--sage); }
.weak-list { display: grid; }
.weak-list button { min-height: 59px; padding: 0; display: grid; grid-template-columns: 27px 1fr auto; align-items: center; gap: 9px; border: 0; border-bottom: 1px solid var(--line); background: transparent; cursor: pointer; text-align: left; }
.weak-list button > span { width: 24px; height: 24px; display: grid; place-items: center; border-radius: 7px; background: var(--amber-pale); font-size: 8px; font-weight: 800; }
.weak-list strong, .weak-list small { display: block; }.weak-list strong { font-size: 9px; }.weak-list small { margin-top: 3px; color: var(--muted); font-size: 7px; }.weak-list b { font-size: 10px; }
.global-search { padding: 10px; display: grid; grid-template-columns: 1fr 190px auto; gap: 8px; border: 1px solid var(--line); border-radius: 14px; background: rgba(255,255,255,.48); }
.global-search input, .global-search select { min-width: 0; height: 42px; padding: 0 12px; border: 1px solid var(--line); border-radius: 9px; background: white; }
.search-summary { margin: 16px 0 10px; color: var(--muted); font-size: 9px; }
.search-results { display: grid; grid-template-columns: 1fr 1fr; gap: 11px; }
.search-result { padding: 18px; }
.search-result-head { display: grid; grid-template-columns: 36px 1fr auto; align-items: center; gap: 9px; }
.search-result-head > span { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 9px; background: var(--blue-pale); font-size: 8px; font-weight: 800; }
.search-result-head strong,.search-result-head small { display: block; }.search-result-head strong { font-size: 10px; }.search-result-head small { margin-top: 3px; color: var(--muted); font-size: 8px; }.search-result-head b { color: var(--sage); font-size: 9px; }
.search-result p { max-height: 100px; overflow: hidden; margin: 16px 0; color: #555b55; font-size: 9px; line-height: 1.7; }
.search-result mark { padding: 1px 2px; border-radius: 2px; background: #f1dca9; }
.search-result > div:last-child { display: flex; justify-content: space-between; gap: 10px; }

.reveal-answer { width: 100%; margin-top: 28px; }
.empty-review { min-height: 360px; display: grid; place-content: center; text-align: center; }
.empty-review > span { width: 50px; height: 50px; display: grid; place-items: center; margin: 0 auto 15px; border-radius: 50%; background: var(--sage-pale); }
.empty-review p { color: var(--muted); font-size: 10px; }

.settings-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 17px; }
.settings-card, .ai-settings-card, .data-card, .workspace-storage-card, .diagnostics-card, .reset-card { padding: 26px; }
.storage-card { grid-column: 1 / -1; padding: 26px; }
.storage-meter { height: 8px; overflow: hidden; border-radius: 8px; background: #e1e0da; }
.storage-meter span { display: block; width: 0; height: 100%; border-radius: inherit; background: var(--sage); transition: width .3s ease; }
.storage-meter span.is-warning { background: var(--rose); }
.storage-card > p { margin: 11px 0 4px; font-size: 10px; font-weight: 700; }
.storage-card > small { color: var(--muted); font-size: 8px; }
.settings-icon { width: 40px; height: 40px; display: grid; place-items: center; border-radius: 11px; background: var(--sage-pale); font-size: 17px; }
.data-card .settings-icon { background: var(--blue-pale); }
.settings-form { display: grid; gap: 17px; margin-top: 28px; }
.settings-form label > span { display: block; margin-bottom: 8px; color: var(--muted); font-size: 9px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; }
.settings-form input, .settings-form select { width: 100%; height: 44px; padding: 0 12px; border: 1px solid var(--line); border-radius: 10px; outline: none; background: #f8f7f3; }
.settings-form input:focus, .settings-form select:focus { border-color: var(--sage); box-shadow: 0 0 0 3px rgba(145,166,148,.14); }
.settings-inline-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 12px; }
.settings-help-block { padding: 12px 14px; border-radius: 10px; background: #f6f3eb; color: var(--muted); }
.settings-help-block strong { display: block; color: var(--ink); font-size: 10px; }
.settings-help-block p { margin: 5px 0 0; font-size: 9px; line-height: 1.55; }
.ai-connection-status { margin-top: 23px; padding: 13px; display: flex; align-items: center; gap: 11px; border: 1px solid var(--line); border-radius: 11px; background: #f8f7f3; }
.ai-connection-status > span { width: 11px; height: 11px; flex: 0 0 auto; border-radius: 50%; background: #b98b6f; box-shadow: 0 0 0 4px #f3e6dd; }.ai-connection-status > span.is-connected { background: #66816d; box-shadow: 0 0 0 4px #dfebe2; }
.ai-connection-status strong, .ai-connection-status small { display: block; }.ai-connection-status strong { font-size: 10px; }.ai-connection-status small { margin-top: 3px; color: var(--muted); font-size: 8px; }
.ai-settings-card .settings-form { margin-top: 16px; }.ai-settings-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; }.ai-settings-actions .button { justify-self: auto; }.danger-text { color: #9a5f50; }
.ai-settings-help { display: block; margin-top: -8px; color: var(--muted); font-size: 8px; line-height: 1.55; }.ai-settings-help code { font-size: 8px; }
.ai-settings-feedback { margin-top: 13px; padding: 10px 12px; border-radius: 9px; background: #eeede7; color: var(--muted); font-size: 9px; line-height: 1.5; }.ai-settings-feedback:empty { display: none; }.ai-settings-feedback.success { background: var(--sage-pale); color: #405448; }.ai-settings-feedback.error { background: #fff0e8; color: #8b5544; }
.ai-usage-panel { margin-top: 18px; padding: 15px; border: 1px solid var(--line); border-radius: 11px; background: rgba(255,255,255,.45); }
.ai-usage-panel .card-heading { margin-bottom: 13px; }.ai-usage-panel .card-heading h3 { font-size: 15px; }.ai-usage-panel .eyebrow { margin-bottom: 5px; }
.ai-usage-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 7px; }.ai-usage-grid > div { min-width: 0; padding: 10px; border-radius: 8px; background: #f4f3ee; }.ai-usage-grid span, .ai-usage-grid strong { display: block; }.ai-usage-grid span { color: var(--muted); font-size: 8px; }.ai-usage-grid strong { margin-top: 5px; font-size: 13px; }
.ai-usage-last { margin: 11px 0 0; padding-top: 10px; border-top: 1px solid var(--line); }.ai-usage-last span, .ai-usage-last strong, .ai-usage-last small { display: block; }.ai-usage-last span { color: var(--muted); font-size: 8px; }.ai-usage-last strong { margin-top: 4px; font-size: 10px; }.ai-usage-last small { margin-top: 3px; color: var(--muted); font-size: 8px; }.ai-usage-note { display: block; margin-top: 10px; color: var(--muted); font-size: 8px; line-height: 1.5; }
.generator-selection { margin: 0; padding: 15px; border: 1px solid var(--line); border-radius: 10px; }.generator-selection legend { padding: 0 6px; font-size: 10px; font-weight: 800; }.generator-checks { display: grid; gap: 7px; }.generator-checks label { min-height: 48px; padding: 9px 10px; display: flex; align-items: center; gap: 9px; border-radius: 8px; background: #f5f4ef; cursor: pointer; }.generator-checks input { width: 17px; height: 17px; flex: 0 0 auto; }.generator-checks span, .generator-checks strong, .generator-checks small { display: block; }.generator-checks strong { font-size: 10px; }.generator-checks small { margin-top: 3px; color: var(--muted); font-size: 8px; }.topic-checks { grid-template-columns: 1fr 1fr; }
.generator-notice { padding: 13px; border-radius: 10px; background: var(--blue-pale); }.generator-notice strong { font-size: 10px; }.generator-notice p { margin: 4px 0 0; color: #52686f; font-size: 9px; line-height: 1.55; }.ai-generation-feedback { min-height: 38px; padding: 11px 12px; border-radius: 9px; background: var(--sage-pale); color: #405448; font-size: 9px; }.ai-generation-feedback:empty { display: none; }.ai-generation-feedback.error { background: #fff0e8; color: #8b5544; }
.generation-resume { padding: 15px; display: flex; align-items: center; justify-content: space-between; gap: 14px; border: 1px solid #c9d6cb; border-radius: 12px; background: var(--sage-pale); }.generation-resume strong, .generation-resume small { display: block; }.generation-resume strong { font-size: 10px; }.generation-resume small { margin-top: 4px; color: var(--muted); font-size: 8px; line-height: 1.5; }.generation-resume > div:last-child { display: flex; gap: 7px; }.generation-review-warning { margin: 14px 0; padding: 12px 14px; border: 1px solid #ead4ad; border-radius: 10px; background: var(--amber-pale); color: #765f3e; font-size: 9px; line-height: 1.55; }.generation-failure-panel { margin: 14px 0; padding: 12px 14px; border: 1px solid #d5ddd3; border-radius: 10px; background: #f8f8f4; }.generation-failure-panel summary { color: var(--ink); font-size: 9px; font-weight: 800; cursor: pointer; }.generation-check-copy { margin: 10px 0 0; color: var(--muted); font-size: 9px; line-height: 1.55; }.generation-check-list { margin-top: 10px; display: flex; flex-wrap: wrap; gap: 7px; }.generation-check-list span { padding: 5px 8px; border-radius: 999px; background: #ecebe5; color: var(--muted); font-size: 8px; }.generation-check-examples { margin-top: 12px; display: grid; gap: 8px; }.generation-check-examples article { padding: 10px 11px; border-radius: 8px; background: white; border: 1px solid var(--line); }.generation-check-examples strong, .generation-check-examples small { display: block; }.generation-check-examples small { margin-top: 4px; color: var(--muted); font-size: 8px; line-height: 1.5; }.paper-blueprint { margin: 14px 0; padding: 12px 14px; border: 1px solid var(--line); border-radius: 10px; background: #f7f6f1; }.paper-blueprint summary { color: var(--ink); font-size: 9px; font-weight: 800; cursor: pointer; }.paper-blueprint pre { margin: 11px 0 0; overflow-wrap: anywhere; white-space: pre-wrap; color: var(--muted); font: 9px/1.65 inherit; }
.generation-status-card { padding: 15px 17px; display: grid; grid-template-columns: 36px minmax(0,1fr) auto; align-items: center; gap: 13px; border: 1px solid var(--line); border-radius: 12px; background: #f8f7f2; }.generation-status-card > span { width: 36px; height: 36px; display: grid; place-items: center; border-radius: 50%; background: var(--sage-pale); color: #4c6854; font-weight: 800; }.generation-status-card strong, .generation-status-card small { display: block; }.generation-status-card strong { font-size: 10px; }.generation-status-card small { margin-top: 4px; color: var(--muted); font-size: 8px; line-height: 1.5; }.generation-status-actions { min-width: 116px; display: grid; gap: 6px; justify-items: stretch; }.generation-status-actions .danger-text { text-align: center; }.generation-status-card.running > span { animation: generationPulse 1.2s ease-in-out infinite alternate; }.generation-status-card.ready { border-color: #aebfae; background: #f2f7f1; }.generation-status-card.paused { border-color: #ead4ad; background: var(--amber-pale); }.generation-status-progress { grid-column: 1 / -1; min-width: 0; }.generation-status-progress-meta { display:flex; justify-content:space-between; gap:10px; margin-bottom:6px; color:var(--muted); font-size:9px; }.generation-status-progress .paper-generation-track { grid-column:auto; height:7px; }.generation-status-progress .paper-generation-track i { background:#6571cf; transition:width .25s ease; }.generation-status-progress .paper-generation-track:after { content:""; position:absolute; inset-block:0; left:-26%; width:24%; border-radius:inherit; background:rgba(255,255,255,.72); animation:paperProgressSweep 1.15s linear infinite; }@keyframes generationPulse { from { transform: scale(.92); opacity: .65; } to { transform: scale(1.05); opacity: 1; } }
.background-generation-panel { padding: 18px 4px 4px; text-align: center; }.background-generation-panel > span { width: 64px; height: 64px; margin: 0 auto 18px; display: grid; place-items: center; border-radius: 50%; background: var(--sage-pale); color: #4e6754; font-size: 24px; }.background-generation-panel > p { max-width: 520px; margin: 10px auto 20px; color: var(--muted); font-size: 10px; line-height: 1.7; }.generation-progress-summary { max-width: 420px; margin: 0 auto; padding: 16px; display: grid; gap: 5px; border-radius: 11px; background: #f3f2ec; }.generation-progress-summary strong { font-size: 20px; }.generation-progress-summary span { color: var(--ink); font-size: 9px; text-transform: capitalize; }.generation-progress-summary small { color: var(--muted); font-size: 8px; }
.generation-summary { padding: 12px 14px; display: flex; justify-content: space-between; gap: 12px; border-radius: 10px; background: var(--sage-pale); }.generation-summary strong, .generation-summary span { font-size: 10px; }.generated-question-list { margin-top: 14px; display: grid; gap: 12px; }.generated-question-list > article { padding: 16px; border: 1px solid var(--line); border-radius: 10px; background: rgba(255,255,255,.65); }.generated-question-select { display: flex; align-items: center; gap: 7px; color: var(--muted); font-size: 9px; font-weight: 800; cursor: pointer; }.generated-question-select input { width: 17px; height: 17px; }.generated-question-meta { margin: 11px 0 8px; display: flex; gap: 6px; flex-wrap: wrap; }.generated-question-meta span { padding: 4px 7px; border-radius: 6px; background: #ecebe5; color: var(--muted); font-size: 8px; }.generated-question-list h3 { margin-bottom: 12px; font-size: 15px; }.generated-answer { padding: 11px; border-radius: 8px; background: #f4f3ee; }.generated-answer strong { font-size: 9px; }.generated-answer p { margin: 5px 0 0; font-size: 10px; line-height: 1.55; }.generated-question-list ol { margin: 11px 0; padding-left: 22px; font-size: 9px; line-height: 1.7; }.generated-question-list details { margin-top: 11px; }.generated-question-list summary { color: var(--muted); font-size: 9px; font-weight: 800; cursor: pointer; }.generated-question-list blockquote { margin: 9px 0 0; padding: 10px 12px; border-left: 3px solid var(--blue); background: var(--blue-pale); }.generated-question-list blockquote p { margin: 0; font-size: 9px; line-height: 1.55; }.generated-question-list blockquote cite { display: block; margin-top: 5px; color: var(--muted); font-size: 8px; }
.ai-privacy-note { margin-top: 18px; }
.settings-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.input-suffix { position: relative; }
.input-suffix input { padding-right: 65px; }
.input-suffix i { position: absolute; right: 11px; top: 15px; color: var(--muted); font-size: 8px; font-style: normal; text-transform: uppercase; }
.settings-form .button { justify-self: start; }
.weekly-schedule { padding: 15px; border: 1px solid var(--line); border-radius: 11px; }
.weekly-schedule > p { margin: 0 0 12px; color: var(--muted); font-size: 8px; }
.weekly-schedule > div { display: grid; gap: 6px; }
.weekly-schedule > div > label { min-height: 42px; display: grid; grid-template-columns: 20px 45px 1fr; align-items: center; gap: 8px; }
.weekly-schedule > div > label > span { margin: 0; color: var(--ink); font-size: 9px; text-transform: none; }
.weekly-schedule input[type="checkbox"] { width: 16px; height: 16px; }
.weekly-schedule .input-suffix input { height: 36px; }.weekly-schedule .input-suffix i { top: 12px; }
.language-setting > span { display: block; margin-bottom: 8px; color: var(--muted); font-size: 9px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; }
.language-setting > div { width: max-content; padding: 3px; display: flex; gap: 2px; border-radius: 10px; background: #e7e5de; }
.language-setting button { min-width: 74px; height: 33px; border: 0; border-radius: 8px; background: transparent; color: var(--muted); cursor: pointer; font-size: 9px; font-weight: 700; }
.language-setting button.is-active { background: white; color: var(--ink); box-shadow: 0 3px 9px rgba(48,51,47,.08); }
.simple-language-setting { margin-top: 25px; }.simple-language-setting > div { width: 100%; }.simple-language-setting button { flex: 1; }
.data-card > p { margin: 27px 0 22px; color: var(--muted); font-size: 11px; line-height: 1.7; }
.backup-status { margin: -8px 0 18px; padding: 11px 13px; display: flex; align-items: center; gap: 10px; border: 1px solid #cbd9ce; border-radius: 10px; background: var(--sage-pale); }
.backup-status > span { width: 24px; height: 24px; display: grid; place-items: center; flex: 0 0 auto; border-radius: 50%; background: #6d8874; color: white; font-size: 9px; font-weight: 800; }
.backup-status strong, .backup-status small { display: block; }
.backup-status strong { font-size: 9px; }
.backup-status small { margin-top: 2px; color: var(--muted); font-size: 8px; }
.backup-status.needs-backup { border-color: #e4c9bc; background: #fff4ed; }
.backup-status.needs-backup > span { background: #b96f54; }
.data-actions { display: flex; gap: 8px; }
.privacy-note { margin-top: 27px; padding: 14px; display: flex; gap: 10px; border-radius: 11px; background: var(--sage-pale); }
.privacy-note > span { color: #66816d; font-size: 8px; }
.privacy-note p, .privacy-note strong { display: block; margin: 0; }
.privacy-note p { color: #607065; font-size: 9px; line-height: 1.55; }
.privacy-note strong { color: #405448; font-size: 10px; }
.diagnostics-card .settings-icon { background: var(--amber-pale); font-family: Georgia,serif; font-weight: 700; }
.diagnostics-grid { margin: 24px 0 16px; display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.diagnostics-grid > div { padding: 12px; border: 1px solid var(--line); border-radius: 10px; background: #f8f7f3; }
.diagnostics-grid dt { color: var(--muted); font-size: 8px; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; }
.diagnostics-grid dd { margin: 5px 0 0; color: var(--ink); font-size: 11px; font-weight: 800; }
.diagnostics-card > p { margin: 0; color: var(--muted); font-size: 9px; line-height: 1.6; }
.reset-card { grid-column: 1 / -1; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.reset-card h3 { margin-bottom: 5px; }
.reset-card p { margin: 0; color: var(--muted); font-size: 10px; }
.archived-section { margin-top: 42px; padding-top: 28px; border-top: 1px solid var(--line); }
.archived-grid { opacity: .65; filter: saturate(.6); }

.native-backup-alert { margin: -9px 0 20px; padding: 14px 16px; display: grid; grid-template-columns: 34px 1fr auto; align-items: center; gap: 12px; border: 1px solid #e4c9bc; border-radius: 13px; background: #fff4ed; }
.native-backup-alert > span { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 10px; background: #f0d7ca; color: #985c46; font-size: 15px; }
.native-backup-alert strong, .native-backup-alert small { display: block; }
.native-backup-alert strong { font-size: 10px; }
.native-backup-alert small { margin-top: 3px; color: #795f54; font-size: 8px; line-height: 1.5; }
.native-onboarding { text-align: center; }
.native-onboarding-mark { width: 62px; height: 62px; display: grid; place-items: center; margin: 0 auto 18px; border-radius: 19px; background: var(--ink); color: white; font-family: Georgia,serif; font-size: 29px; }
.native-onboarding > p { margin: 10px auto 22px; max-width: 490px; color: var(--muted); font-size: 10px; line-height: 1.7; }
.onboarding-points { display: grid; gap: 9px; text-align: left; }
.onboarding-points > div { padding: 13px; display: flex; align-items: center; gap: 12px; border: 1px solid var(--line); border-radius: 11px; background: #f8f7f3; }
.onboarding-points b { width: 27px; height: 27px; display: grid; place-items: center; flex: 0 0 auto; border-radius: 50%; background: var(--sage-pale); color: #52675a; font-size: 9px; }
.onboarding-points strong, .onboarding-points small { display: block; }
.onboarding-points strong { font-size: 10px; }
.onboarding-points small { margin-top: 3px; color: var(--muted); font-size: 8px; line-height: 1.45; }
.native-onboarding .modal-actions { justify-content: center; }

.editor-modal { width: min(720px,100%); }

.compact-course-hero { min-height: 190px; }
.compact-course-hero::before, .compact-course-hero::after { display: none; }
.compact-course-hero h1 { margin-bottom: 16px; }
.compact-course-hero .course-hero-meta { flex-wrap: wrap; }
.compact-course-hero .course-hero-meta span + span::before { content: "·"; margin-right: 10px; color: var(--hero-accent); }

.papers-workspace, .notes-workspace { display: grid; gap: 18px; }
.papers-heading { padding: 25px; display: flex; align-items: center; justify-content: space-between; gap: 24px; border: 1px solid var(--line); border-radius: 16px; background: #faf9f5; }
.papers-heading h2 { margin: 5px 0 7px; }
.papers-heading p { max-width: 660px; margin: 0; color: var(--muted); font-size: 10px; line-height: 1.65; }
.paper-library, .note-library { display: grid; gap: 12px; }
.paper-card { padding: 20px; display: grid; grid-template-columns: 44px minmax(0,1fr) auto; align-items: center; gap: 16px; }
.paper-number { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 12px; background: var(--sage-pale); color: #52665a; font-size: 11px; font-weight: 800; }
.paper-card span, .paper-card small { color: var(--muted); font-size: 8px; }
.paper-card h3 { margin: 4px 0 6px; font-size: 13px; }
.paper-card-actions { display: grid; justify-items: stretch; gap: 7px; }
.paper-card-actions .button { min-width: 116px; }
.paper-card-actions .danger-text { color: #9a534b; text-align: center; }
.paper-progress { max-width: 420px; height: 4px; margin-top: 10px; overflow: hidden; border-radius: 10px; background: #e5e4dd; }
.paper-progress i { height: 100%; display: block; border-radius: inherit; background: var(--sage); }
.paper-generation-card { border-color: #cad1e7; background: #f8f9fd; }
.paper-generation-card.is-paused { border-color: #ead4ad; background: #fffaf0; }
.paper-generation-symbol { width: 44px; height: 44px; display: grid; place-items: center; border-radius: 12px; background: #e9ecfa; color: #5865c1; font-size: 17px; font-weight: 900; }
.paper-generation-card.is-running .paper-generation-symbol { animation: generationPulse 1.2s ease-in-out infinite alternate; }
.paper-generation-copy { min-width: 0; }
.paper-generation-copy small { display: block; overflow-wrap: anywhere; line-height: 1.5; }
.paper-generation-side { width: 190px; display: grid; grid-template-columns: minmax(0,1fr) auto; align-items: center; gap: 7px 10px; }
.paper-generation-value { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; }
.paper-generation-value strong { color: var(--ink); font-size: 13px; }
.paper-generation-value span { font-size: 8px; }
.paper-generation-track { position: relative; grid-column: 1 / -1; height: 7px; overflow: hidden; border-radius: 999px; background: #e3e6f1; }
.paper-generation-track i { display: block; width: 0; height: 100%; border-radius: inherit; background: #6571cf; transition: width .25s ease; }
.paper-generation-card.is-running .paper-generation-track::after { content: ""; position: absolute; inset-block: 0; left: -26%; width: 24%; border-radius: inherit; background: rgba(255,255,255,.72); animation: paperProgressSweep 1.15s linear infinite; }
.paper-generation-card.is-paused .paper-generation-track i { background: #b59658; }
.paper-generation-actions { grid-column: 1 / -1; display: grid; gap: 6px; }.paper-generation-actions .button { width: 100%; min-height: 34px; }.paper-generation-actions .danger-text { text-align: center; }
.visual-question-image-mode { margin-top: 10px; padding: 10px; display: grid; gap: 7px; border: 1px solid #d8deec; border-radius: 10px; background: #f8f9fd; }
.visual-question-image-mode label:first-child { display: grid; gap: 5px; }
.visual-question-image-mode label:first-child > span { color: #566b8f; font-size: 8px; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; }
.visual-question-image-mode select { width: 100%; min-height: 34px; font-size: 10px; }
.question-image-upload { justify-self: start; min-height: 30px; padding: 6px 9px; font-size: 9px; }
.visual-question-image-mode small { color: var(--muted); font-size: 8px; line-height: 1.45; }
@keyframes paperProgressSweep { from { transform: translateX(0); } to { transform: translateX(525%); } }
.paper-empty-hint { padding: 16px 20px; display: flex; align-items: center; gap: 12px; color: var(--muted); }
.empty-paper-library { min-height: 220px; padding: 28px; display: grid; place-items: center; align-content: center; text-align: center; color: var(--muted); }
.empty-paper-library > span { font-size: 28px; }
.empty-paper-library h3 { margin: 10px 0 3px; color: var(--ink); }
.empty-paper-library p { margin: 0; font-size: 9px; }

.paper-workspace-page { max-width: 1120px; margin: 0 auto; }
.paper-page-topbar { min-height: 58px; margin-bottom: 24px; display: flex; align-items: center; justify-content: space-between; gap: 20px; border-bottom: 1px solid var(--line); }
.paper-page-topbar .back-button { margin: 0; }
.paper-page-topbar > div { display: flex; align-items: center; flex-wrap: wrap; gap: 8px 12px; color: var(--muted); font-size: 9px; }
.paper-page-topbar strong { padding: 7px 10px; border-radius: 14px; background: var(--sage-pale); color: #4e6254; }
.paper-page-topbar .paper-total-score { background: var(--amber-pale); color: #775b39; }
.paper-page-heading { padding: 32px; display: grid; grid-template-columns: minmax(0,1fr) auto; align-items: end; gap: 20px; border: 1px solid var(--line); border-radius: 16px; background: #faf9f5; }
.paper-page-heading h1 { margin: 7px 0 9px; font-size: clamp(26px,4vw,42px); }
.paper-page-heading p { max-width: 720px; margin: 0; color: var(--muted); font-size: 11px; line-height: 1.7; }
.paper-page-stats { display: grid; grid-template-columns: repeat(4, minmax(78px,1fr)); gap: 10px; }
.paper-page-stats > div { padding: 14px 16px; border: 1px solid var(--line); border-radius: 14px; background: rgba(255,255,255,.72); text-align: center; }
.paper-page-stats small, .paper-page-stats span { display: block; }
.paper-page-stats small { color: var(--ink); font-size: 20px; font-weight: 800; line-height: 1; }
.paper-page-stats span { margin-top: 7px; color: var(--muted); font-size: 8px; font-weight: 700; text-transform: uppercase; letter-spacing: .07em; }
.paper-modal-heading { display: flex; justify-content: space-between; align-items: start; gap: 20px; padding-bottom: 18px; border-bottom: 1px solid var(--line); }
.paper-modal-heading h2 { margin: 4px 0 7px; }
.paper-modal-heading p { max-width: 680px; margin: 0; color: var(--muted); font-size: 10px; line-height: 1.6; }
.paper-modal-heading > span { padding: 8px 11px; border-radius: 18px; background: var(--amber-pale); font-size: 9px; font-weight: 800; white-space: nowrap; }
.paper-jump-nav { margin: 16px 0; padding: 10px; display: flex; flex-wrap: wrap; gap: 6px; position: sticky; top: 74px; z-index: 8; border: 1px solid var(--line); border-radius: 12px; background: color-mix(in srgb, var(--paper) 92%, transparent); backdrop-filter: blur(12px); }
.paper-jump-nav a { width: 30px; height: 30px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 8px; color: var(--ink); text-decoration: none; font-size: 9px; font-weight: 800; }
.paper-jump-nav a.is-marked { border-color: #9bb3a0; background: var(--sage-pale); color: #42594a; }
.paper-question-list { display: grid; gap: 18px; }
.paper-question { padding: 24px; scroll-margin-top: 128px; border: 1px solid var(--line); border-radius: 15px; background: #fbfaf7; }
.paper-question > header { display: flex; justify-content: space-between; gap: 12px; color: var(--muted); font-size: 9px; font-weight: 800; text-transform: uppercase; letter-spacing: .06em; }
.paper-question > header div { display: flex; gap: 6px; }
.paper-question-topline { display: flex; align-items: center; gap: 10px; }
.paper-mark-badge { min-width: 78px; padding: 7px 10px; border-radius: 999px; background: #ece8dd; color: var(--ink); font-size: 9px; font-weight: 800; letter-spacing: .04em; text-align: center; white-space: nowrap; }
.paper-mark-badge.is-graded { background: var(--sage-pale); color: #415847; }
.paper-question > header small { padding: 4px 7px; border-radius: 9px; background: #eeece5; font-size: 7px; }
.paper-question-shell { display: grid; gap: 18px; margin-top: 14px; }
.paper-question h3 { margin: 0; font-size: 14px; line-height: 1.6; }
.paper-question-form { display: grid; gap: 14px; }
.answer-form-card { display: grid; gap: 14px; }
.answer-textarea { width: 100%; min-height: 220px; padding: 18px; resize: vertical; border: 1px solid #c9cbc3; border-radius: 14px; background: white; color: var(--ink); font-size: 17px; line-height: 1.72; }
.answer-textarea:focus { border-color: #758f7c; outline: 3px solid rgba(145,166,148,.2); }
.answer-textarea-large { min-height: 340px; }
.paper-answer-field textarea { min-height: 340px; }
.paper-draft-row { min-height: 22px; display: flex; justify-content: flex-end; align-items: center; }
.paper-draft-row small { color: var(--muted); font-size: 8px; }
.paper-question-actions { margin-top: 13px; display: flex; align-items: center; flex-wrap: wrap; gap: 8px; }
.paper-question-feedback { margin-top: 12px; }
.paper-page-footer { padding: 28px 0 6px; display: flex; justify-content: center; }
.paper-report { margin-top: 20px; padding: 26px; border: 1px solid var(--line); border-radius: 16px; background: #faf9f5; }
.paper-report.is-complete { border-color: #b9cbbb; background: linear-gradient(145deg,#f4f8f3,#faf9f5); }
.paper-report-heading { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.paper-report-heading h2 { margin: 5px 0 7px; }
.paper-report-heading p { max-width: 680px; margin: 0; color: var(--muted); font-size: 10px; line-height: 1.65; }
.paper-report-score { width: 112px; height: 112px; display: grid; place-items: center; align-content: center; flex: 0 0 auto; border-radius: 50%; background: var(--sage-pale); text-align: center; }
.paper-report-score strong { font-size: 27px; }
.paper-report-score span { margin-top: 3px; color: var(--muted); font-size: 8px; }
.paper-topic-results { margin-top: 22px; display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 10px; }
.paper-topic-results article { padding: 13px; border: 1px solid var(--line); border-radius: 10px; background: rgba(255,255,255,.7); }
.paper-topic-results article > div:first-child { display: flex; justify-content: space-between; gap: 10px; font-size: 9px; }
.paper-topic-results article > div:nth-child(2) { height: 5px; margin: 10px 0 7px; overflow: hidden; border-radius: 8px; background: #e4e5df; }
.paper-topic-results i { height: 100%; display: block; border-radius: inherit; background: var(--sage); }
.paper-topic-results small { color: var(--muted); font-size: 8px; }
.paper-missing-points { margin-top: 18px; padding: 16px; border-radius: 10px; background: var(--amber-pale); }
.paper-missing-points > strong { font-size: 10px; }
.paper-missing-points ul { margin: 9px 0 0; padding-left: 19px; }
.paper-missing-points li { color: #685a45; font-size: 9px; line-height: 1.65; }
.paper-report-actions { margin-top: 18px; display: flex; flex-wrap: wrap; gap: 8px; }

.note-card { padding: 22px; }
.notes-heading-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.note-card header { display: flex; justify-content: space-between; gap: 14px; }
.note-card header > div > span { color: var(--muted); font-size: 8px; font-weight: 800; text-transform: uppercase; }
.note-card h3 { margin: 4px 0; }
.note-card small { color: var(--muted); font-size: 8px; }
.note-card header > button { width: 32px; height: 32px; border: 0; border-radius: 9px; background: #efede6; cursor: pointer; }
.note-card > p { margin: 17px 0 0; color: #48504a; font-size: 10px; line-height: 1.75; white-space: pre-wrap; }
.note-card.is-ai-note { border-left: 4px solid var(--sage); }
.note-sections { margin-top: 18px; display: grid; gap: 14px; }
.note-sections section { padding: 16px 0; border-top: 1px solid var(--line); }
.note-sections h4 { margin: 0 0 7px; font-size: 12px; }
.note-sections p, .note-sections li { color: #48504a; font-size: 10px; line-height: 1.7; }
.note-sections p { margin: 0; white-space: pre-wrap; }
.note-sections ul { margin: 9px 0 0; padding-left: 20px; }
.note-anatomy-image { min-height: 220px; margin-top: 18px; position: relative; overflow: hidden; border: 1px solid var(--line); border-radius: 8px; background: #eeece5; }
.note-anatomy-image img { width: 100%; max-height: 460px; display: block; object-fit: contain; background: white; }
.note-anatomy-image span { position: absolute; left: 10px; bottom: 10px; padding: 6px 9px; border-radius: 6px; background: rgba(28,31,29,.82); color: white; font-size: 8px; }
.anatomy-relationship-map { margin-top: 18px; display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 10px; }
.anatomy-relationship-map article { padding: 13px; border: 1px solid #cbd8da; border-radius: 8px; background: var(--blue-pale); }
.anatomy-relationship-map article > div { display: grid; grid-template-columns: minmax(0,1fr) auto minmax(0,1fr); align-items: center; gap: 8px; }
.anatomy-relationship-map strong { font-size: 9px; line-height: 1.4; }
.anatomy-relationship-map span { color: #59767d; font-size: 8px; font-weight: 800; text-align: center; }
.anatomy-relationship-map p { margin: 9px 0 0; color: var(--muted); font-size: 8px; line-height: 1.55; }
.note-citations { margin-top: 18px; padding-top: 14px; border-top: 1px solid var(--line); }
.note-citations summary { color: var(--ink); font-size: 9px; font-weight: 800; cursor: pointer; }
.note-citations blockquote { margin: 10px 0 0; padding: 10px 12px; border-left: 3px solid var(--blue); background: var(--blue-pale); }
.note-citations blockquote p { margin: 0; font-size: 9px; line-height: 1.55; }
.note-citations cite { display: block; margin-top: 5px; color: var(--muted); font-size: 8px; }
.note-diagram-tools { display: flex; align-items: center; flex-wrap: wrap; gap: 9px; margin: 0 0 8px; }
.note-diagram-tools small { color: var(--muted); font-size: 8px; }
.note-diagram { margin-top: 17px; padding: 18px; display: grid; gap: 12px; overflow-x: auto; border-radius: 13px; background: var(--blue-pale); }
.diagram-row { min-width: max-content; display: flex; align-items: center; gap: 8px; }
.diagram-row-index { width: 26px; height: 26px; display: grid; place-items: center; border-radius: 8px; background: rgba(255,255,255,.7); color: #5a7680; font-size: 8px; font-weight: 800; }
.diagram-node { max-width: 210px; padding: 9px 12px; border: 1px solid #cad7d9; border-radius: 10px; background: white; font-size: 9px; font-weight: 700; line-height: 1.4; white-space: normal; }
.diagram-arrow { color: #67858d; font-size: 15px; }
.note-image-labels { margin-top: 10px; display: flex; flex-wrap: wrap; gap: 7px; }
.note-image-labels span { padding: 6px 9px; border-radius: 999px; background: #eef4f5; color: #4e6870; font-size: 8px; line-height: 1.45; }
.editor-intro { color: var(--muted); font-size: 11px; line-height: 1.6; }
.editor-form { display: grid; gap: 20px; margin-top: 24px; }
.editor-form .field { display: block; }
.editor-form .field input, .editor-form .field select, .editor-form .field textarea { width: 100%; border: 1px solid var(--line); border-radius: 10px; outline: none; background: white; }
.editor-form .field input, .editor-form .field select { height: 43px; padding: 0 12px; }
.editor-form .field textarea { padding: 12px; resize: vertical; line-height: 1.6; }
.editor-form .field input:focus, .editor-form .field select:focus, .editor-form .field textarea:focus { border-color: var(--sage); box-shadow: 0 0 0 3px rgba(145,166,148,.14); }
.empty-editor-copy { color: var(--muted); font-size: 9px; }
.grade-summary { margin-bottom: 12px; display: grid; grid-template-columns: repeat(3,1fr); gap: 8px; }
.grade-summary > div { padding: 11px; border-radius: 9px; background: var(--sage-pale); }
.grade-summary span, .grade-summary strong { display: block; }
.grade-summary span { color: var(--muted); font-size: 7px; text-transform: uppercase; }
.grade-summary strong { margin-top: 4px; font-size: 14px; }
.grade-summary.compact { grid-template-columns: 1fr 1fr; }
.prerequisite-field { padding: 15px; border: 1px solid var(--line); border-radius: 11px; }
.prerequisite-field legend { padding: 0 5px; font-size: 9px; font-weight: 800; }
.prerequisite-field > p { margin: 0 0 10px; color: var(--muted); font-size: 8px; }
.prerequisite-field > div { max-height: 180px; overflow: auto; display: grid; grid-template-columns: 1fr 1fr; gap: 7px; }
.prerequisite-field label { min-height: 36px; padding: 8px; display: flex; align-items: center; gap: 8px; border-radius: 8px; background: #f4f3ee; font-size: 9px; }
.danger-zone { padding: 15px; display: flex; align-items: center; justify-content: space-between; gap: 15px; border: 1px solid #e1cbc5; border-radius: 12px; background: #f4e9e5; }
.workspace-danger-details { margin-top: 18px; border-top: 1px solid var(--line); padding-top: 12px; }
.workspace-danger-details summary { color: var(--muted); font-size: 10px; cursor: pointer; user-select: none; }
.workspace-danger-details[open] summary { margin-bottom: 10px; color: #704b43; }
.danger-zone strong, .danger-zone small { display: block; }
.danger-zone strong { color: #704b43; font-size: 10px; }
.danger-zone small { margin-top: 3px; color: #956e65; font-size: 8px; }
.danger-zone > div:last-child { display: flex; gap: 7px; }
.danger-button { min-height: 38px; padding: 0 14px; border: 1px solid #c99083; border-radius: 9px; background: transparent; color: #8f5144; cursor: pointer; font-size: 9px; font-weight: 800; }
.danger-solid { background: #a75e50; color: white; border-color: #a75e50; }
.split-actions { display: grid; grid-template-columns: auto 1fr auto auto; }
.delete-confirm { padding: 15px 4px 4px; text-align: center; }
.delete-confirm > span { width: 58px; height: 58px; display: grid; place-items: center; margin: 0 auto 19px; border-radius: 50%; background: #efd9d3; color: #a75e50; font-size: 24px; font-weight: 800; }
.delete-confirm p { max-width: 500px; margin: 0 auto 27px; color: var(--muted); font-size: 11px; line-height: 1.7; }
.delete-confirm .modal-actions { justify-content: center; }
[lang="zh-CN"] body, [lang="zh-TW"] body { font-family: "PingFang SC", "Microsoft JhengHei", "Microsoft YaHei", ui-sans-serif, sans-serif; }
[lang="zh-CN"] .eyebrow, [lang="zh-CN"] .course-tag, [lang="zh-CN"] .course-hero-meta, [lang="zh-CN"] .field > span, [lang="zh-CN"] legend,
[lang="zh-TW"] .eyebrow, [lang="zh-TW"] .course-tag, [lang="zh-TW"] .course-hero-meta, [lang="zh-TW"] .field > span, [lang="zh-TW"] legend { letter-spacing: .08em; }

@media (max-width: 980px) {
  .course-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .dashboard-grid { grid-template-columns: 1fr; }
  .courses-section { grid-column: auto; }
  .course-detail-grid { grid-template-columns: 1fr; }
  .topic-card, .syllabus-preview { grid-column: auto; grid-row: auto; }
  .adaptive-practice, .concepts-layout, .materials-layout { grid-template-columns: 1fr; }
}

/* Tablet portrait and phones use the same bottom navigation so labels remain
   visible on iPad-sized touch screens instead of collapsing into an unlabeled
   icon rail. */
@media (max-width: 820px) {
  .image-material-workspace { padding: 18px; }
  .image-material-workspace > header, .image-batch-actions { align-items: stretch; flex-direction: column; }
  .image-material-workspace > header .material-upload-actions { display: grid; grid-template-columns: 1fr; }
  .course-image-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .course-image-thumb { height: 120px; }
  .processed-image-card { grid-template-columns: 76px minmax(0,1fr); }
  .processed-image-thumb { width: 76px; height: 62px; }
  .processed-image-card > .button { grid-column: 1 / -1; }
  .sidebar { transform: translateX(-100%); transition: transform .22s ease; box-shadow: var(--shadow); }
  .sidebar.is-open { transform: translateX(0); }
  .main-content { margin-left: 0; width: 100%; }
  .mobile-menu { display: inline-grid; place-items: center; }
  .breadcrumb { display: none; }
  .topbar { height: 66px; padding: 0 18px; }
  .view-root { padding: 30px 18px 45px; }
  .page-head { align-items: start; flex-direction: column; }
  .date-chip { text-align: left; }
  .course-grid { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .field-wide { grid-column: auto; }
  .modal-card { padding: 27px 20px; }
  .study-item { grid-template-columns: 38px minmax(0,1fr); }
  .top-actions .notification-button { display: none; }
  .concept-evidence { grid-template-columns: 1fr 1fr; }
  .course-hero { align-items: start; flex-direction: column; }
  .course-tabs { overflow-x: auto; }
  .course-tabs button { flex: 0 0 auto; }
  .practice-empty { grid-template-columns: 1fr; }
  .concept-grid { grid-template-columns: 1fr; }
  .material-drop-card { align-items: start; flex-direction: column; }
  .material-row { grid-template-columns: 38px minmax(0,1fr) auto; }
  .material-row > b { display: none; }
  .image-tools-card, .hotspot-editor-layout, .label-removal-layout, .ai-label-review-layout, .official-name-review-layout, .official-batch-review-layout, .official-locator-layout, .cleaned-image-comparison { grid-template-columns: 1fr; }
  .official-locator-panel, .official-batch-review-image { position: static; }
  .question-image-policy-options { grid-template-columns:1fr; }
  .ocr-region-list, .ai-label-review-list { max-height: 360px; }
  .cleaned-image-comparison img { height: 300px; }
  .candidate-checks { grid-template-columns: 1fr; }
  .complete-reader-toolbar { align-items: stretch; flex-direction: column; }
  .image-tools-card .button { width: 100%; }
  .hotspot-canvas { min-height: 270px; }
  .question-bank-layout { grid-template-columns: 1fr; }
  .papers-heading { align-items: stretch; flex-direction: column; }
  .settings-inline-grid { grid-template-columns: 1fr; }
  .notes-heading-actions .button { flex: 1; justify-content: center; }
  .anatomy-relationship-map { grid-template-columns: 1fr; }
  .generation-resume { align-items: stretch; flex-direction: column; }
  .generation-resume > div:last-child .button { flex: 1; justify-content: center; }
  .generation-status-card { grid-template-columns: 36px minmax(0,1fr); }
  .generation-status-card .generation-status-actions { grid-column: 2; width: min(100%,220px); }
  .paper-card { grid-template-columns: 38px minmax(0,1fr); }
  .paper-card > .button { grid-column: 2; justify-self: start; }
  .paper-modal-heading { flex-direction: column; }
  .paper-page-topbar { align-items: flex-start; flex-direction: column; padding-bottom: 14px; }
  .paper-page-topbar > div { width: 100%; justify-content: space-between; }
  .paper-page-heading { grid-template-columns: 1fr; padding: 22px 18px; }
  .paper-page-stats { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .paper-jump-nav { top: 67px; }
  .paper-question { padding: 18px; }
  .paper-question > header { align-items: flex-start; flex-direction: column; }
  .paper-question-topline { width: 100%; justify-content: space-between; }
  .paper-question-actions { align-items: stretch; flex-direction: column; }
  .paper-question-actions .button, .paper-question-actions .text-button { width: 100%; justify-content: center; }
  .paper-report-heading { align-items: flex-start; flex-direction: column; }
  .paper-report-score { width: 92px; height: 92px; }
  .paper-topic-results { grid-template-columns: 1fr; }
  .paper-report-actions .button { width: 100%; justify-content: center; }
  .answer-textarea { min-height: 190px; font-size: 16px; }
  .answer-textarea-large, .paper-answer-field textarea { min-height: 260px; }
  .question-stats { grid-template-columns: 1fr 1fr 1fr; }
  .question-filters { grid-template-columns: 1fr 1fr; }
  .mistake-toolbar { align-items: stretch; flex-direction: column; }
  .mistake-filter-controls { align-items: stretch; flex-direction: column; }
  .mistake-filter-controls select { width: 100%; }
  .mistake-row { grid-template-columns: 38px 1fr; }
  .mistake-actions { grid-column: 2; }
  .global-search { grid-template-columns: 1fr; }
  .search-results { grid-template-columns: 1fr; }
  .topic-row { grid-template-columns: 1fr 44px; gap: 8px; padding: 9px 0; }
  .topic-progress { grid-column: 1 / -1; grid-row: 2; }
  .topic-row b { grid-column: 2; grid-row: 1; }
  .reset-card { align-items: stretch; flex-direction: column; }
  .settings-layout { grid-template-columns: 1fr; }
  .reset-card { grid-column: auto; }
  .storage-card { grid-column: auto; }
  .settings-fields { grid-template-columns: 1fr; }
  .ai-usage-grid { grid-template-columns: 1fr 1fr; }
  .topic-checks { grid-template-columns: 1fr; }
  .simple-topic-list { grid-template-columns: 1fr; }
  .data-actions { align-items: stretch; flex-direction: column; }
  .data-actions .button { width: 100%; }
  .dashboard-courses-heading { align-items: stretch; flex-direction: column; gap: 14px; }.dashboard-courses-heading .button { width: 100%; }
  .dashboard-courses-empty { grid-template-columns: 1fr; }.dashboard-courses-empty .button { width: 100%; }
  .native-backup-alert { grid-template-columns: 34px 1fr; }
  .native-backup-alert .button { grid-column: 1 / -1; width: 100%; }
  .diagnostics-grid { grid-template-columns: 1fr; }
  .mistake-choice-grid { grid-template-columns: 1fr; }
  .danger-zone { align-items: stretch; flex-direction: column; }
  .danger-zone > div:last-child { flex-wrap: wrap; }
  .concept-number-fields { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation: none !important; transition: none !important; }
}

/* Lumen interface refresh · calm, task-first and touch-friendly */
:root {
  --paper: #f7f8fb;
  --surface: #ffffff;
  --surface-strong: #ffffff;
  --surface-subtle: #f2f4f7;
  --ink: #172033;
  --muted: #667085;
  --muted-strong: #475467;
  --line: #e4e7ec;
  --line-strong: #d0d5dd;
  --dark: #3443b5;
  --accent: #5364dc;
  --accent-hover: #4353c7;
  --accent-pale: #eef0ff;
  --sage: #5b8f79;
  --sage-pale: #eaf5ef;
  --blue: #4f8ca8;
  --blue-pale: #e9f5f8;
  --amber: #b7792d;
  --amber-pale: #fff4df;
  --rose: #c15f68;
  --rose-pale: #fff0f1;
  --shadow: 0 18px 46px rgba(20, 31, 56, .10);
  --shadow-soft: 0 3px 12px rgba(20, 31, 56, .06);
  --radius: 18px;
  --sidebar-width: 224px;
}

html { background: var(--paper); }
body {
  background: var(--paper);
  color: var(--ink);
  font-size: 15px;
  line-height: 1.5;
  overscroll-behavior: none;
}
button, input, textarea, select { font: inherit; }
button, a, label { -webkit-tap-highlight-color: transparent; }
button:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible, [tabindex]:focus-visible {
  outline: 3px solid rgba(83, 100, 220, .24);
  outline-offset: 2px;
}

.app-shell { min-height: 100dvh; }
.sidebar {
  width: var(--sidebar-width);
  min-height: 100dvh;
  padding: calc(24px + env(safe-area-inset-top)) 14px calc(18px + env(safe-area-inset-bottom));
  background: #f0f2f7;
  border-right: 1px solid #e2e5ec;
}
.brand {
  min-height: 52px;
  padding: 0 10px 24px;
  gap: 11px;
  letter-spacing: 0;
}
.brand-mark {
  width: 38px;
  height: 38px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  border-radius: 12px;
  transform: none;
  background: linear-gradient(145deg, #6677ef, #3f4db4);
  box-shadow: 0 8px 18px rgba(65, 80, 185, .22);
  color: white;
  font-size: 18px;
  font-weight: 780;
}
.brand-mark span { display: none; }
.brand-copy { min-width: 0; }
.brand-copy strong, .brand-copy small { display: block; }
.brand-copy strong { font-size: 18px; line-height: 1.1; }
.brand-copy small { margin-top: 4px; color: var(--muted); font-size: 10px; font-weight: 600; letter-spacing: .01em; }
.nav-list { gap: 5px; }
.nav-item {
  min-height: 48px;
  padding: 0 12px;
  gap: 12px;
  border-radius: 12px;
  color: #596273;
  font-size: 13px;
  font-weight: 650;
}
.nav-item:hover { background: rgba(255,255,255,.72); color: var(--ink); }
.nav-item.is-active { background: #fff; color: #3543b4; box-shadow: 0 1px 2px rgba(16,24,40,.04), 0 6px 20px rgba(38,49,85,.06); }
.nav-icon { width: 21px; height: 21px; display: grid; place-items: center; }
.nav-icon svg, .avatar svg, .mobile-menu svg { width: 21px; height: 21px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.sidebar-bottom { display: grid; gap: 5px; }
.profile-row {
  min-height: 60px;
  margin-top: 10px;
  padding: 12px 9px 0;
  border-top-color: #dfe3ea;
  gap: 10px;
}
.avatar { width: 34px; height: 34px; border-radius: 11px; background: #e2e6f7; color: #4654b5; }
.avatar svg { width: 18px; height: 18px; }
.profile-row strong { font-size: 11px; }
.profile-row small { margin-top: 2px; font-size: 9px; }
.local-dot { width: 7px; height: 7px; margin-left: auto; border-radius: 50%; background: #48a878; box-shadow: 0 0 0 3px #dff2e8; }

.main-content { margin-left: var(--sidebar-width); width: calc(100% - var(--sidebar-width)); }
.topbar {
  position: sticky;
  top: 0;
  z-index: 15;
  height: 70px;
  padding: env(safe-area-inset-top) clamp(24px, 3.2vw, 48px) 0;
  background: rgba(247,248,251,.88);
  border-bottom: 1px solid rgba(213,218,228,.75);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
}
.workspace-alert {
  position: sticky;
  top: calc(82px + env(safe-area-inset-top));
  z-index: 11;
  margin: 0 0 18px;
  padding: 14px 16px;
  display: grid;
  grid-template-columns: 34px minmax(0,1fr) auto;
  align-items: center;
  gap: 12px;
  border: 1px solid #e4c9bc;
  border-radius: 14px;
  background: rgba(255,244,237,.96);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  box-shadow: 0 10px 24px rgba(85,49,35,.08);
}
.workspace-alert-icon {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: #f0d7ca;
  color: #985c46;
  font-size: 15px;
  font-weight: 800;
}
.workspace-alert strong,
.workspace-alert small { display: block; }
.workspace-alert strong { font-size: 10px; color: #734b3d; }
.workspace-alert small { margin-top: 3px; color: #7f6459; font-size: 8px; line-height: 1.55; }
.workspace-alert-ready {
  border-color: #bdd2bf;
  background: rgba(242,247,241,.96);
}
.workspace-alert-ready .workspace-alert-icon {
  background: #d9eadb;
  color: #4f7a58;
}
.workspace-alert-ready strong { color: #3d6145; }
.workspace-alert-ready small { color: #5d7362; }
.workspace-alert-running {
  border-color: #e2d5b8;
  background: rgba(255,248,232,.97);
}
.workspace-alert-running .workspace-alert-icon {
  background: #f4e7c8;
  color: #8d6b27;
  animation: generationPulse 1.2s ease-in-out infinite alternate;
}
.breadcrumb { gap: 8px; font-size: 12px; }
.breadcrumb strong { font-weight: 700; }
.top-actions { gap: 9px; }
.language-toggle {
  min-width: 52px;
  height: 40px;
  border-color: var(--line);
  border-radius: 11px;
  background: #fff;
  color: var(--muted-strong);
  font-size: 10px;
  box-shadow: 0 1px 2px rgba(16,24,40,.03);
}
.mobile-menu { width: 42px; height: 42px; color: var(--ink); }
.button {
  min-height: 44px;
  padding: 0 17px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 720;
  transition: transform .16s ease, box-shadow .16s ease, background .16s ease, border-color .16s ease;
}
.button:hover { transform: translateY(-1px); }
.button:active { transform: translateY(0) scale(.985); }
.button-dark { background: var(--accent); box-shadow: 0 7px 18px rgba(83,100,220,.20); }
.button-dark:hover { background: var(--accent-hover); }
.button-ghost { background: #fff; border: 1px solid var(--line); color: var(--muted-strong); box-shadow: 0 1px 2px rgba(16,24,40,.03); }
.button-ghost:hover { border-color: #c8ced8; color: var(--ink); }
.button[disabled] { opacity: .48; box-shadow: none; cursor: not-allowed; transform: none; }
.text-button { min-height: 38px; color: var(--accent); font-size: 12px; }

.view-root { width: 100%; max-width: 1360px; padding: 38px clamp(24px, 3.2vw, 48px) 72px; }
.eyebrow { margin-bottom: 8px; color: #7b8495; font-size: 10px; font-weight: 750; letter-spacing: .12em; }
h1 { font-size: clamp(31px, 3.4vw, 44px); line-height: 1.08; letter-spacing: -.04em; }
h2 { font-size: 24px; letter-spacing: -.03em; }
h3 { font-size: 17px; letter-spacing: -.02em; }
.page-head { align-items: start; margin-bottom: 28px; }
.page-head p { max-width: 680px; color: var(--muted); font-size: 13px; line-height: 1.65; }
.section-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-soft); }
.card-heading { margin-bottom: 18px; }
.course-code { color: var(--muted); font-size: 10px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; }

/* Courses */
.dashboard-courses-only { width: 100%; }
.dashboard-courses-heading {
  margin-bottom: 28px;
  display: grid;
  grid-template-columns: minmax(0,1fr) auto auto;
  align-items: end;
  gap: 24px;
}
.dashboard-courses-heading h1 { margin: 0; }
.dashboard-courses-heading p { max-width: 580px; margin: 10px 0 0; color: var(--muted); font-size: 13px; }
.dashboard-summary { display: flex; align-items: center; gap: 8px; }
.dashboard-summary span { padding: 9px 11px; border: 1px solid var(--line); border-radius: 11px; background: rgba(255,255,255,.65); color: var(--muted); font-size: 10px; white-space: nowrap; }
.dashboard-summary strong { color: var(--ink); font-size: 12px; }
.course-grid { grid-template-columns: repeat(3,minmax(0,1fr)); gap: 16px; }
.course-card {
  min-height: 226px;
  padding: 22px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: #fff;
  box-shadow: var(--shadow-soft);
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.course-card:hover { transform: translateY(-3px); border-color: #d1d6e0; box-shadow: 0 14px 32px rgba(35,46,72,.10); }
.course-card:active { transform: translateY(-1px); }
.course-card:focus-visible { transform: translateY(-2px); border-color: var(--accent); box-shadow: 0 0 0 4px rgba(83,100,220,.14), 0 14px 32px rgba(35,46,72,.10); outline: 0; }
.course-card-accent { position: absolute; inset: 0 0 auto; height: 4px; background: #6978de; }
.course-card.course-theme-2 .course-card-accent { background: #4b96a5; }
.course-card.course-theme-3 .course-card-accent { background: #c68b45; }
.course-top { display: flex; align-items: center; gap: 10px; }
.course-icon { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 13px; background: var(--accent-pale); color: #4555c5; font-size: 18px; font-weight: 750; }
.course-card.course-theme-2 .course-icon { background: var(--blue-pale); color: #35798a; }
.course-card.course-theme-3 .course-icon { background: var(--amber-pale); color: #9b641f; }
.course-tag { padding: 0; background: transparent; color: var(--muted); font-size: 10px; letter-spacing: .06em; }
.course-card-arrow { width: 34px; height: 34px; margin-left: auto; display: grid; place-items: center; border-radius: 50%; background: #f5f6f8; color: #7b8495; transition: transform .18s ease, background .18s ease; }
.course-card:hover .course-card-arrow { transform: translateX(3px); background: var(--accent-pale); color: var(--accent); }
.course-card-title { margin-top: 26px; }
.course-card-title .course-code { display: block; margin-bottom: 5px; }
.course-card h3 { margin: 0; font-size: 21px; line-height: 1.22; }
.course-content-counts { margin-top: auto; padding-top: 18px; display: flex; flex-wrap: wrap; gap: 7px; border-top: 1px solid #eef0f3; }
.course-content-counts span { padding: 5px 8px; border-radius: 8px; background: #f5f6f8; color: var(--muted); font-size: 9px; }
.course-content-counts strong { color: var(--ink); }
.course-content-counts .course-mistake-count { background: var(--rose-pale); color: #a04d56; }
.course-content-counts .course-mistake-count strong { color: #a04d56; }
.dashboard-courses-empty { min-height: 230px; padding: 34px; border-style: dashed; background: rgba(255,255,255,.68); }
.dashboard-courses-empty > span { width: 54px; height: 54px; border-radius: 16px; background: var(--accent-pale); color: var(--accent); }
.dashboard-courses-empty h2 { margin-bottom: 6px; }
.dashboard-courses-empty p { font-size: 12px; }
.archived-courses-simple { margin-top: 30px; }
.archived-courses-simple summary { min-height: 44px; display: flex; align-items: center; font-size: 11px; }

/* Course workspace */
.back-button {
  min-height: 40px;
  margin: 0 0 14px;
  padding: 0 6px;
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
}
.back-button:hover { color: var(--accent); }
.course-hero.compact-course-hero {
  min-height: 176px;
  padding: 26px 28px;
  display: grid;
  grid-template-columns: auto minmax(0,1fr) auto;
  align-items: center;
  gap: 20px;
  overflow: hidden;
  position: relative;
  border: 1px solid #dfe3ef;
  border-radius: 22px;
  background: linear-gradient(135deg,#ffffff 0%,#f3f5ff 100%);
  color: var(--ink);
  box-shadow: var(--shadow-soft);
}
.course-hero.compact-course-hero.course-theme-2 { background: linear-gradient(135deg,#ffffff 0%,#edf8fa 100%); }
.course-hero.compact-course-hero.course-theme-3 { background: linear-gradient(135deg,#ffffff 0%,#fff7e9 100%); }
.course-hero-icon { width: 66px; height: 66px; display: grid; place-items: center; border-radius: 20px; background: #e8ebff; color: #4353c7; font-size: 27px; font-weight: 750; }
.course-hero.course-theme-2 .course-hero-icon { background: #ddf1f5; color: #397d8d; }
.course-hero.course-theme-3 .course-hero-icon { background: #fbe9cc; color: #9b6727; }
.compact-course-hero .course-tag { display: inline-block; margin-bottom: 5px; color: var(--muted); }
.compact-course-hero h1 { margin: 0 0 13px; font-size: clamp(27px,3vw,38px); }
.course-hero-meta { display: flex; flex-wrap: wrap; gap: 7px; }
.compact-course-hero .course-hero-meta span { padding: 5px 9px; border: 1px solid rgba(116,128,158,.15); border-radius: 8px; background: rgba(255,255,255,.66); color: var(--muted-strong); font-size: 9px; }
.compact-course-hero .course-hero-meta span + span::before { display: none; }
.course-manage-button { min-height: 42px; padding: 0 14px; border: 1px solid var(--line); border-radius: 11px; background: #fff; color: var(--muted-strong); font-size: 11px; font-weight: 700; cursor: pointer; box-shadow: 0 1px 2px rgba(16,24,40,.03); }
.course-manage-button:hover { border-color: #c7cdd8; color: var(--ink); }
.course-tabs {
  margin: 18px 0 22px;
  padding: 5px;
  display: flex;
  gap: 3px;
  overflow-x: auto;
  position: sticky;
  top: calc(70px + env(safe-area-inset-top));
  z-index: 10;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: #eff1f5;
  box-shadow: 0 5px 14px rgba(26,37,68,.06);
  scrollbar-width: none;
}
.course-tabs::-webkit-scrollbar { display: none; }
.course-tabs button { scroll-margin-inline: 20px; }
.course-tabs button { min-width: 0; min-height: 47px; padding: 0 13px; flex: 1 0 auto; display: flex; align-items: center; justify-content: center; gap: 7px; border: 0; border-radius: 11px; background: transparent; color: var(--muted); font-size: 11px; cursor: pointer; }
.course-tabs button i { width: 20px; height: 20px; display: grid; place-items: center; font-style: normal; font-size: 13px; }
.course-tabs button b { font-weight: 700; white-space: nowrap; }
.course-tabs button span { min-width: 20px; height: 20px; padding: 0 6px; display: grid; place-items: center; border-radius: 10px; background: rgba(105,115,134,.12); font-size: 9px; }
.course-tabs button.is-active { background: #fff; color: #3543b4; box-shadow: 0 2px 8px rgba(30,41,69,.08); }
.course-tabs button.is-active span { background: var(--accent-pale); }

/* Materials, papers and notes */
.materials-layout { grid-template-columns: minmax(270px,.72fr) minmax(0,1.45fr); gap: 16px; }
.material-drop-card { min-height: 250px; padding: 26px; align-items: flex-start; flex-direction: column; gap: 17px; border-style: dashed; background: #fbfcff; }
.material-drop-icon { width: 48px; height: 48px; border-radius: 15px; background: var(--accent-pale); color: var(--accent); font-size: 21px; }
.material-drop-card h2 { margin-bottom: 8px; font-size: 21px; }
.material-drop-card p { color: var(--muted); font-size: 12px; line-height: 1.65; }
.material-drop-card small { display: block; margin-top: 10px; color: #8991a0; font-size: 9px; line-height: 1.5; }
.file-button { margin-top: 6px; }
.material-list-card { padding: 24px; }
.image-material-workspace { margin-top: 18px; padding: 26px; border: 1px solid var(--line); border-radius: 18px; background: #fff; box-shadow: var(--shadow); }
.image-material-workspace > header { display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; padding-bottom: 22px; border-bottom: 1px solid var(--line); }
.image-material-workspace > header h2 { margin: 3px 0 7px; font-size: 22px; }
.image-material-workspace > header p { max-width: 610px; margin: 0; color: var(--muted); font-size: 11px; line-height: 1.65; }
.image-original-library, .processed-image-library, .document-image-candidate-library { padding-top: 23px; }
.image-original-library .card-heading, .processed-image-library .card-heading, .document-image-candidate-library .card-heading { align-items: flex-start; }
.image-original-library .card-heading h3, .processed-image-library .card-heading h3, .document-image-candidate-library .card-heading h3 { margin: 0 0 5px; font-size: 16px; }
.image-original-library .card-heading p, .processed-image-library .card-heading p, .document-image-candidate-library .card-heading p { max-width: 650px; margin: 0; color: var(--muted); font-size: 10px; line-height: 1.55; }
.document-image-candidate-library { margin-top: 20px; padding-top: 22px; border-top: 1px solid var(--line); }
.document-image-candidate { border-color: #c8d6e7; background: #f7fbff; }
.document-image-progress { margin-top: 18px; }
.course-image-grid { display: grid; grid-template-columns: repeat(auto-fill,minmax(190px,1fr)); gap: 12px; margin-top: 15px; }
.course-image-card { position: relative; min-width: 0; padding: 9px; display: grid; grid-template-columns: 1fr auto; gap: 8px; border: 1px solid var(--line); border-radius: 13px; background: #fafbfc; }
.course-image-thumb { grid-column: 1 / -1; width: 100%; height: 145px; padding: 0; overflow: hidden; border: 0; border-radius: 9px; background: #20231f; cursor: pointer; }
.course-image-thumb img, .processed-image-thumb img { width: 100%; height: 100%; object-fit: contain; }
.course-image-card > div { min-width: 0; }
.course-image-card > div strong, .course-image-card > div small { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.course-image-card > div strong { font-size: 10px; }
.course-image-card > div small { margin-top: 3px; color: var(--muted); font-size: 8px; }
.course-image-card > .icon-button { width: 28px; height: 28px; }
.image-batch-check { position: absolute; z-index: 2; top: 16px; left: 16px; cursor: pointer; }
.image-batch-check input { position: absolute; opacity: 0; pointer-events: none; }
.image-batch-check span { width: 27px; height: 27px; display: grid; place-items: center; border: 2px solid #fff; border-radius: 50%; background: rgba(20,25,22,.72); color: transparent; box-shadow: 0 2px 8px rgba(0,0,0,.2); }
.image-batch-check input:checked + span { background: var(--ink); color: #fff; }
.image-batch-check input:focus-visible + span { outline: 3px solid var(--focus); outline-offset: 2px; }
.image-batch-check input:disabled + span { opacity: .55; cursor: wait; }
.image-batch-actions { margin-top: 16px; padding: 14px 15px; display: flex; align-items: center; justify-content: space-between; gap: 16px; border-radius: 12px; background: #f0f3f7; }
.image-batch-actions strong, .image-batch-actions small { display: block; }
.image-batch-actions strong { font-size: 11px; }
.image-batch-actions small { margin-top: 3px; color: var(--muted); font-size: 8px; }
.image-batch-controls { display: flex; align-items: end; gap: 9px; }
.image-batch-controls label { display: grid; gap: 4px; color: var(--muted); font-size: 8px; font-weight: 700; }
.image-batch-controls select { min-width: 186px; min-height: 36px; padding: 0 9px; border: 1px solid var(--line); border-radius: 8px; background: #fff; color: var(--ink); font: inherit; }
.image-batch-progress { margin-top: 10px; padding: 13px 15px; display: grid; grid-template-columns: auto 1fr; gap: 11px; border: 1px solid #bcd2c5; border-radius: 12px; background: #f0f8f3; }
.image-batch-progress > span { width: 31px; height: 31px; display: grid; place-items: center; border-radius: 50%; background: #dcefe3; }
.image-batch-progress strong, .image-batch-progress small { display: block; }
.image-batch-progress strong { font-size: 10px; }
.image-batch-progress small { margin-top: 2px; color: var(--muted); font-size: 8px; }
.image-batch-progress i { height: 4px; margin-top: 8px; display: block; overflow: hidden; border-radius: 9px; background: #d7e2da; }
.image-batch-progress i b { height: 100%; display: block; border-radius: inherit; background: #43835d; transition: width .2s ease; }
.processed-image-library { margin-top: 24px; border-top: 1px solid var(--line); }
.processed-image-grid { display: grid; gap: 10px; margin-top: 15px; }
.processed-image-card { padding: 10px; display: grid; grid-template-columns: 92px minmax(0,1fr) auto; align-items: center; gap: 13px; border: 1px solid var(--line); border-radius: 13px; background: #fafbfc; }
.processed-image-card.needs-review { border-color: #b8cbdc; background: #f6faff; }
.processed-image-card.is-verified { border-color: #bad3c2; background: #f5faf6; }
.processed-image-card.is-processing { border-color: #d8cfb0; background: #fffaf0; }
.processed-image-card.has-error { border-color: #dfc0c0; background: #fff8f8; }
.processed-image-thumb { width: 92px; height: 68px; padding: 0; overflow: hidden; border: 0; border-radius: 8px; background: #20231f; cursor: pointer; }
.processed-image-card > div { min-width: 0; }
.processed-image-card > div strong, .processed-image-card > div small { display: block; }
.processed-image-card > div strong { overflow: hidden; font-size: 11px; text-overflow: ellipsis; white-space: nowrap; }
.processed-image-card > div small { margin-top: 4px; color: var(--muted); font-size: 8px; line-height: 1.45; }
.processed-image-progress { height: 4px; margin-top: 8px; display: block; overflow: hidden; border-radius: 999px; background: #eadfbe; }
.processed-image-progress b { width: 36%; height: 100%; display: block; border-radius: inherit; background: #c59d43; animation: processedImageLoop 1.15s ease-in-out infinite alternate; }
.processed-image-actions { display: grid; grid-auto-flow: column; align-items: center; justify-content: end; gap: 8px; }
.processed-image-status { min-height: 28px; padding: 5px 9px 5px 6px; display: inline-flex; align-items: center; gap: 6px; border: 1px solid #b8cbdc; border-radius: 999px; background: #eef5fb; color: #49718e; font-size: 8px; font-weight: 800; white-space: nowrap; }
.processed-image-status i { width: 17px; height: 17px; display: grid; place-items: center; border-radius: 50%; background: #d8e7f2; font-style: normal; }
.processed-image-card.is-verified .processed-image-status { border-color: #9bc5a8; background: #eaf7ee; color: #28643e; }
.processed-image-card.is-verified .processed-image-status i { background: #3d8a59; color: #fff; }
.processed-image-card.is-processing .processed-image-status { border-color: #d8c589; background: #fff6dc; color: #80611d; }
.processed-image-card.is-processing .processed-image-status i { background: #eed994; animation: processedStatusPulse 1.15s ease-in-out infinite alternate; }
.processed-image-card.has-error .processed-image-status { border-color: #dfb0b0; background: #fff0f0; color: #984242; }
.processed-image-card.has-error .processed-image-status i { background: #efcaca; }
.processed-image-actions .button { min-width: 0; }
.processed-image-actions .icon-button { width: 36px; height: 36px; }
.danger-icon-button { color: #a04f4f; }
.danger-icon-button:hover { background: #f8eaea; color: #8a3838; }
@keyframes processedImageLoop { from { transform: translateX(-20%); opacity: .7; } to { transform: translateX(120%); opacity: 1; } }
@keyframes processedStatusPulse { from { transform: scale(.88); opacity: .65; } to { transform: scale(1.08); opacity: 1; } }
.image-review-decision, .image-review-rejection-options { padding: 15px; display: flex; align-items: center; justify-content: space-between; gap: 18px; border: 1px solid var(--line); border-radius: 13px; background: #f7f9fb; }
.image-review-decision > div:first-child strong, .image-review-decision > div:first-child small, .image-review-rejection-options > div:first-child strong, .image-review-rejection-options > div:first-child small { display: block; }
.image-review-decision > div:first-child strong, .image-review-rejection-options > div:first-child strong { font-size: 11px; }
.image-review-decision > div:first-child small, .image-review-rejection-options > div:first-child small { margin-top: 4px; color: var(--muted); font-size: 8px; line-height: 1.45; }
.image-review-rejection-options { margin-top: 10px; border-color: #d8c589; background: #fffaf0; }
.image-review-rejection-options[hidden] { display: none; }
.image-review-choice-actions { display: flex; align-items: center; justify-content: flex-end; gap: 8px; }
.empty-materials.compact { min-height: 130px; }
.material-list { gap: 8px; }
.material-row { min-height: 68px; padding: 10px 9px; grid-template-columns: 42px minmax(0,1fr) auto 38px; gap: 11px; border: 1px solid transparent; border-radius: 13px; }
.material-row:hover { border-color: var(--line); background: #fafbfc; }
.material-row > span { width: 40px; height: 40px; border-radius: 11px; background: #f0f2f6; color: var(--muted-strong); font-size: 9px; font-weight: 800; }
.material-main strong { font-size: 12px; }
.material-main small { margin-top: 4px; color: var(--muted); font-size: 9px; }
.material-row > b { color: var(--muted); font-size: 9px; }
.material-row .icon-button { width: 36px; height: 36px; color: #9098a8; }
.empty-materials { min-height: 210px; }
.empty-materials span { background: #f0f2f6; color: #7b8495; }
.empty-materials p { font-size: 11px; }

.papers-workspace, .notes-workspace { gap: 16px; }
.papers-heading { padding: 24px 26px; border-color: var(--line); border-radius: 18px; background: #fff; box-shadow: var(--shadow-soft); }
.papers-heading h2 { margin: 4px 0 6px; font-size: 23px; }
.papers-heading p { max-width: 700px; font-size: 11px; line-height: 1.6; }
.paper-create-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px; }
.paper-create-actions .button { white-space: nowrap; }
.visual-paper-hint { display: flex; align-items: center; gap: 12px; }
.visual-paper-hint p { flex: 1; }
.visual-source-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.visual-source-heading > span { min-width: 0; }
.visual-source-heading strong, .visual-source-heading small { display: block; }
.visual-source-card.needs-labels { border-style: dashed; background: #fafbfc; }
.visual-source-empty { margin-top: 12px; padding: 12px; border-radius: 10px; background: #f2f4f7; }
.visual-source-empty p { margin: 0 0 9px; color: var(--muted); font-size: 10px; line-height: 1.55; }
.image-ai-settings-card { padding: 25px; }
.paper-library, .note-library { gap: 10px; }
.paper-card { min-height: 92px; padding: 18px; border-radius: 16px; }
.paper-number { background: var(--accent-pale); color: #4554bd; }
.paper-card span, .paper-card small { font-size: 9px; }
.paper-card h3 { margin: 5px 0; font-size: 15px; }
.paper-progress { height: 5px; margin-top: 9px; background: #edf0f3; }
.paper-progress i { background: var(--accent); }
.empty-paper-library { min-height: 220px; }
.notes-heading-actions { display: flex; gap: 8px; }
.note-card { padding: 25px; border-radius: 18px; }
.note-card.is-ai-note { border-left: 4px solid var(--accent); }
.note-card header h3 { font-size: 20px; }
.note-card > p { color: var(--muted-strong); font-size: 13px; line-height: 1.75; }
.note-sections { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 10px; }
.note-sections section { padding: 17px; border: 1px solid var(--line); border-radius: 13px; background: #fafbfc; }
.note-sections h4 { font-size: 13px; }
.note-sections p, .note-sections li { font-size: 11px; line-height: 1.65; }
.note-diagram { padding: 17px; border: 1px solid #dfe3f4; border-radius: 14px; background: #f7f8ff; }
.diagram-node { min-height: 38px; padding: 8px 12px; border-color: #d7dcf3; background: #fff; font-size: 10px; }
.diagram-arrow { color: var(--accent); }

/* Mistakes and question library */
.mistake-toolbar { margin-bottom: 14px; padding: 14px 16px; border: 1px solid var(--line); border-radius: 15px; background: #fff; box-shadow: var(--shadow-soft); }
.mistake-summary { gap: 8px; }
.mistake-summary span { padding: 8px 11px; border-radius: 10px; background: #f5f6f8; color: var(--muted); font-size: 10px; }
.mistake-summary strong { color: var(--ink); font-size: 15px; }
.mistake-filter-controls label > span { font-size: 9px; }
.mistake-filter-controls select { min-height: 40px; border-color: var(--line); border-radius: 10px; background: #fff; font-size: 11px; }
.filter-chips { padding: 3px; border-radius: 11px; background: #f0f2f5; }
.filter-chips button { min-height: 36px; border-radius: 8px; font-size: 10px; }
.filter-chips button.is-active { background: #fff; color: var(--accent); box-shadow: 0 2px 7px rgba(26,37,68,.08); }
.mistake-card { padding: 23px; }
.mistake-list { gap: 7px; }
.mistake-row { min-height: 82px; padding: 13px; border: 1px solid var(--line); border-radius: 14px; background: #fff; }
.mistake-row:hover { border-color: #cfd4de; background: #fcfcfd; }
.mistake-copy > strong { font-size: 12px; }
.mistake-copy small { font-size: 10px; line-height: 1.5; }
.study-meta { font-size: 9px; }
.study-index { border-radius: 11px; }
.question-bank-layout { grid-template-columns: minmax(0,1fr) 280px; gap: 16px; }
.question-bank-card, .question-actions-card { border-radius: 18px; }
.question-filters input, .question-filters select { min-height: 42px; border-color: var(--line); border-radius: 10px; background: #fff; font-size: 11px; }
.question-row { min-height: 70px; border-radius: 12px; }
.question-row strong { font-size: 11px; }

/* Paper answering */
.paper-workspace-page { max-width: 1050px; margin: 0 auto; }
.paper-page-topbar { position: sticky; top: 70px; z-index: 12; padding: 10px 4px; background: rgba(247,248,251,.92); -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px); }
.paper-page-topbar > div strong { font-size: 11px; }
.paper-page-heading { margin-top: 8px; padding: 28px; border: 1px solid var(--line); border-radius: 20px; background: #fff; box-shadow: var(--shadow-soft); }
.paper-page-heading h1 { font-size: clamp(28px,3.5vw,40px); }
.paper-page-heading p { font-size: 12px; }
.paper-page-stats { gap: 7px; }
.paper-page-stats > div { min-width: 78px; padding: 12px 10px; border-radius: 12px; background: #f4f5f8; }
.paper-page-stats small { font-size: 16px; }
.paper-page-stats span { font-size: 8px; }
.paper-jump-nav { top: 126px; margin: 12px 0; padding: 9px; border: 1px solid var(--line); border-radius: 14px; background: rgba(255,255,255,.94); box-shadow: var(--shadow-soft); }
.paper-jump-nav a { width: 36px; height: 36px; border-radius: 10px; background: #f0f2f6; color: var(--muted-strong); font-size: 11px; }
.paper-jump-nav a.is-marked { background: var(--sage-pale); color: #477461; }
.paper-question-list { gap: 16px; }
.paper-question { padding: 24px; border: 1px solid var(--line); border-radius: 20px; background: #fff; box-shadow: var(--shadow-soft); }
.paper-question > header > span { color: var(--accent); font-size: 10px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.paper-question-shell { margin-top: 16px; }
.paper-question-shell > h3 { max-width: 900px; margin-bottom: 20px; font-size: 18px; line-height: 1.55; }
.paper-mark-badge { min-width: 68px; min-height: 34px; padding: 7px 10px; border-radius: 10px; background: #f0f2f6; color: var(--muted-strong); font-size: 11px; }
.paper-mark-badge.is-graded { background: var(--sage-pale); color: #477461; }
.answer-form-card { padding: 0; border: 0; background: transparent; }
.field > span { margin-bottom: 7px; color: var(--muted-strong); font-size: 10px; letter-spacing: .02em; text-transform: none; }
.answer-textarea, .paper-answer-field textarea {
  min-height: 280px;
  padding: 17px;
  border: 1px solid var(--line-strong);
  border-radius: 14px;
  background: #fbfcfd;
  color: var(--ink);
  font-size: 16px;
  line-height: 1.65;
  resize: vertical;
}
.answer-textarea:focus, .paper-answer-field textarea:focus { border-color: var(--accent); background: #fff; box-shadow: 0 0 0 4px rgba(83,100,220,.10); outline: 0; }
.paper-draft-row small { color: #8991a0; font-size: 9px; }
.paper-question-actions { gap: 8px; }
.quiz-options { gap: 9px; }
.quiz-options label { min-height: 54px; padding: 11px 13px; border: 1px solid var(--line); border-radius: 13px; background: #fff; }
.quiz-options label:has(input:checked) { border-color: var(--accent); background: var(--accent-pale); box-shadow: 0 0 0 3px rgba(83,100,220,.08); }
.quiz-options input { width: 19px; height: 19px; accent-color: var(--accent); }
.quiz-options span { font-size: 12px; line-height: 1.5; }
.answer-feedback { margin-top: 14px; padding: 18px; border-radius: 14px; }
.answer-feedback strong { font-size: 13px; }
.answer-feedback p, .answer-feedback li { font-size: 11px; line-height: 1.65; }
.paper-report { padding: 26px; border-radius: 20px; }

/* Forms, settings and dialogs */
.modal-backdrop { padding: max(18px,env(safe-area-inset-top)) 18px max(18px,env(safe-area-inset-bottom)); background: rgba(19,27,45,.42); -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px); }
.modal-card {
  width: min(680px,100%);
  max-height: min(90dvh,920px);
  overflow: auto;
  padding: 30px;
  border: 1px solid rgba(255,255,255,.5);
  border-radius: 22px;
  background: #fff;
  box-shadow: 0 28px 80px rgba(12,20,39,.24);
}
.editor-modal { width: min(780px,100%); }
.editor-modal.is-image-review-wide { width:min(1480px,100%); max-height:min(94dvh,1080px); }
.modal-close { width: 42px; height: 42px; top: 14px; right: 14px; border-radius: 12px; background: #f3f4f6; color: var(--muted); font-size: 20px; }
.modal-kicker { color: var(--accent); font-size: 10px; letter-spacing: .12em; }
.modal-card h2 { margin: 6px 44px 8px 0; font-size: 27px; }
.modal-card > p, .modal-copy { color: var(--muted); font-size: 12px; line-height: 1.65; }
.editor-form { gap: 17px; }
.field input, .field textarea, .field select, .settings-form input, .settings-form select, .global-search input, .global-search select {
  width: 100%;
  min-height: 48px;
  padding: 10px 13px;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  background: #fbfcfd;
  color: var(--ink);
  font-size: 16px;
  outline: 0;
}
.field textarea { line-height: 1.6; resize: vertical; }
.field input:focus, .field textarea:focus, .field select:focus, .settings-form input:focus, .settings-form select:focus { border-color: var(--accent); background: #fff; box-shadow: 0 0 0 4px rgba(83,100,220,.10); }
fieldset { border-color: var(--line); border-radius: 14px; }
legend { color: var(--muted-strong); font-size: 10px; }
.modal-actions { padding-top: 5px; gap: 8px; }
.generator-selection { padding: 16px; border-radius: 14px; }
.paper-mode-controls { margin-top: 18px; border: 1px solid #d9def4; background: #f8f9ff; }
.paper-mode-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 10px; }
.paper-mode-grid label { min-height: 78px; padding: 13px; display: flex; align-items: flex-start; gap: 10px; border: 1px solid var(--line); border-radius: 12px; background: #fff; cursor: pointer; }
.paper-mode-grid label:has(input:checked) { border-color: var(--accent); background: var(--accent-pale); box-shadow: 0 0 0 3px rgba(83,100,220,.08); }
.paper-mode-grid input { margin-top: 3px; accent-color: var(--accent); }
.paper-mode-grid strong, .paper-mode-grid small { display: block; }
.paper-mode-grid strong { font-size: 12px; }
.paper-mode-grid small { margin-top: 4px; color: var(--muted); font-size: 10px; line-height: 1.45; }
.paper-mode-options { margin-top: 13px; }
.paper-mode-options select[multiple] { min-height: 108px; padding: 7px 10px; }
.paper-mode-options select[multiple] option { padding: 5px 3px; }
.paper-mode-controls.is-exam { border-color: #e5d7bb; background: #fffaf0; }
.generator-checks { gap: 8px; max-height: 300px; overflow-y: auto; }
.generator-checks label { min-height: 54px; padding: 10px 12px; border: 1px solid transparent; border-radius: 11px; background: #f5f6f8; }
.generator-checks label:has(input:checked) { border-color: #d8dcf2; background: var(--accent-pale); }
.generator-checks input { accent-color: var(--accent); }
.generator-checks strong { font-size: 11px; }
.generator-checks small { font-size: 9px; }
.generator-notice { border: 1px solid #dce1f4; border-radius: 13px; background: #f3f5ff; }
.generator-notice strong { color: #3f4ca4; font-size: 11px; }
.generator-notice p { color: #65709a; font-size: 10px; }
.settings-layout { gap: 16px; }
.settings-card, .ai-settings-card, .data-card, .diagnostics-card, .storage-card { padding: 25px; border-radius: 18px; }
.settings-icon { width: 44px; height: 44px; border-radius: 14px; background: var(--accent-pale); color: var(--accent); }
.settings-form { margin-top: 22px; gap: 16px; }
.settings-form label > span, .language-setting > span { color: var(--muted-strong); font-size: 10px; text-transform: none; letter-spacing: .02em; }
.settings-help-block { border: 1px solid var(--line); border-radius: 12px; background: #fafbfc; }
.settings-help-block strong { font-size: 11px; }
.settings-help-block p { font-size: 10px; }
.ai-connection-status, .ai-usage-panel, .diagnostics-grid > div { border-radius: 13px; background: #fafbfc; }
.ai-connection-status strong { font-size: 11px; }
.ai-connection-status small { font-size: 9px; }
.ai-usage-grid > div { border-radius: 11px; background: #f3f5f8; }
.ai-usage-grid span { font-size: 9px; }
.ai-usage-grid strong { font-size: 14px; }
.language-setting > div { border: 1px solid var(--line); background: #f1f3f6; }
.language-setting button { min-height: 38px; font-size: 10px; }
.language-setting button.is-active { color: var(--accent); }
.toast { bottom: calc(22px + env(safe-area-inset-bottom)); padding: 13px 17px; border-radius: 12px; background: #172033; box-shadow: 0 12px 30px rgba(16,24,40,.24); font-size: 11px; }

@media (max-width: 1180px) {
  .course-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .dashboard-courses-heading { grid-template-columns: 1fr auto; }
  .dashboard-summary { grid-column: 1 / -1; grid-row: 2; }
  .materials-layout { grid-template-columns: 1fr; }
  .material-drop-card { min-height: auto; display: grid; grid-template-columns: auto 1fr; }
  .material-drop-card .material-drop-icon { grid-row: 1 / span 2; }
}

@media (max-width: 980px) {
  :root { --sidebar-width: 88px; }
  .sidebar { padding-left: 11px; padding-right: 11px; }
  .brand { justify-content: center; padding-left: 0; padding-right: 0; }
  .brand-copy, .nav-item > span:not(.nav-icon), .profile-row > span:nth-child(2), .local-dot { display: none; }
  .nav-item { justify-content: center; padding: 0; }
  .profile-row { justify-content: center; padding-left: 0; padding-right: 0; }
  .dashboard-summary { overflow-x: auto; }
  .course-tabs button { flex: 0 0 auto; }
  .course-tabs button b { display: inline; }
  .course-hero.compact-course-hero { grid-template-columns: auto minmax(0,1fr); }
  .course-manage-button { grid-column: 2; justify-self: start; }
  .question-bank-layout { grid-template-columns: 1fr; }
  .question-actions-card { order: -1; }
  .settings-layout { grid-template-columns: 1fr; }
  .storage-card { grid-column: auto; }
}

@media (max-width: 820px) {
  :root { --sidebar-width: 0px; }
  body { padding-bottom: calc(72px + env(safe-area-inset-bottom)); }
  .sidebar {
    width: 100%;
    min-height: 0;
    height: calc(66px + env(safe-area-inset-bottom));
    inset: auto 0 0;
    padding: 5px 10px env(safe-area-inset-bottom);
    display: grid;
    grid-template-columns: repeat(3,1fr);
    align-items: center;
    transform: none;
    border: 0;
    border-top: 1px solid rgba(213,218,228,.9);
    background: rgba(248,249,252,.94);
    box-shadow: 0 -8px 26px rgba(30,39,64,.08);
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
  }
  .sidebar.is-open { transform: none; }
  .brand, .profile-row { display: none; }
  .nav-list, .sidebar-bottom { display: contents; }
  .nav-item { min-height: 56px; flex-direction: column; gap: 2px; border-radius: 12px; font-size: 9px; }
  .nav-item > span:not(.nav-icon) { display: block; }
  .nav-item.is-active { background: transparent; box-shadow: none; }
  .nav-item.is-active .nav-icon { width: 42px; height: 29px; border-radius: 15px; background: var(--accent-pale); }
  .nav-icon { width: 42px; height: 29px; }
  .nav-icon svg { width: 19px; height: 19px; }
  .main-content { margin-left: 0; width: 100%; }
  .topbar { height: calc(62px + env(safe-area-inset-top)); padding: env(safe-area-inset-top) 15px 0; }
  .mobile-menu { display: none; }
  .breadcrumb { display: flex; }
  .breadcrumb #breadcrumbParent, .breadcrumb b { display: none; }
  .breadcrumb strong { font-size: 14px; }
  .top-actions { margin-left: auto; }
  .top-actions .button { min-width: 42px; width: 42px; padding: 0; }
  .top-actions .button span:last-child { display: none; }
  .view-root { padding: 24px 15px 32px; }
  .workspace-alert {
    top: calc(70px + env(safe-area-inset-top));
    grid-template-columns: 34px minmax(0,1fr);
  }
  .workspace-alert .button {
    grid-column: 1 / -1;
    width: 100%;
  }
  .dashboard-courses-heading { grid-template-columns: 1fr auto; gap: 14px; }
  .dashboard-courses-heading p { font-size: 11px; }
  .dashboard-courses-heading .button { width: 44px; padding: 0; }
  .dashboard-courses-heading .button { font-size: 0; }
  .dashboard-courses-heading .button span { font-size: 18px; }
  .dashboard-summary { grid-column: 1 / -1; gap: 6px; }
  .dashboard-summary span { padding: 7px 9px; }
  .course-grid { grid-template-columns: 1fr; }
  .course-card { min-height: 205px; }
  .dashboard-courses-empty { grid-template-columns: 1fr; padding: 25px; }
  .dashboard-courses-empty .button { width: 100%; }
  .course-hero.compact-course-hero { min-height: 0; padding: 21px; grid-template-columns: 52px minmax(0,1fr); gap: 14px; }
  .course-hero-icon { width: 52px; height: 52px; border-radius: 16px; font-size: 21px; }
  .compact-course-hero h1 { font-size: 25px; }
  .course-hero-meta { gap: 5px; }
  .compact-course-hero .course-hero-meta span { padding: 4px 7px; font-size: 8px; }
  .course-manage-button { grid-column: 1 / -1; width: 100%; }
  .course-tabs { margin: 13px -15px 18px; padding: 5px 15px; border-left: 0; border-right: 0; border-radius: 0; }
  .course-tabs { top: calc(62px + env(safe-area-inset-top)); border-radius: 0 0 13px 13px; }
  .course-tabs button { min-height: 45px; padding: 0 12px; }
  .materials-layout { grid-template-columns: 1fr; }
  .material-drop-card { display: flex; min-height: 0; padding: 21px; }
  .material-list-card { padding: 18px; }
  .image-material-workspace { padding: 18px; }
  .image-material-workspace > header, .image-batch-actions { align-items: stretch; flex-direction: column; }
  .image-batch-controls { align-items: stretch; flex-direction: column; }
  .image-batch-controls select, .image-batch-controls .button { width: 100%; }
  .image-material-workspace > header .material-upload-actions { display: grid; grid-template-columns: 1fr; }
  .course-image-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .course-image-thumb { height: 120px; }
  .processed-image-card { grid-template-columns: 76px minmax(0,1fr); }
  .processed-image-thumb { width: 76px; height: 62px; }
  .processed-image-actions { grid-column: 1 / -1; justify-content: stretch; grid-auto-flow: row; grid-template-columns: minmax(0,1fr) auto; }
  .processed-image-status { grid-column: 1 / -1; justify-self: start; }
  .processed-image-actions .button { width: 100%; }
  .image-review-decision, .image-review-rejection-options { align-items: stretch; flex-direction: column; }
  .image-review-choice-actions { display: grid; grid-template-columns: 1fr; }
  .image-review-choice-actions .button { width: 100%; }
  .material-row { grid-template-columns: 40px minmax(0,1fr) 36px; }
  .material-row > b, .material-job-button { grid-column: 2; justify-self: start; }
  .material-row .icon-button { grid-column: 3; grid-row: 1; }
  .papers-heading { padding: 21px; align-items: stretch; flex-direction: column; }
  .paper-create-actions { display: grid; grid-template-columns: 1fr; }
  .paper-create-actions .button, .visual-paper-hint .button { width: 100%; }
  .visual-paper-hint { align-items: stretch; flex-direction: column; }
  .notes-heading-actions { display: grid; grid-template-columns: 1fr; }
  .note-sections { grid-template-columns: 1fr; }
  .paper-card { grid-template-columns: 38px minmax(0,1fr); }
  .paper-card > .button { grid-column: 2; width: 100%; }
  .paper-card-actions { grid-column: 2; grid-template-columns: minmax(0,1fr) auto; align-items: center; }
  .paper-card-actions .button { width: 100%; }
  .paper-generation-symbol { width: 38px; height: 38px; }
  .paper-generation-side { grid-column: 2; width: 100%; }
  .paper-page-topbar { top: calc(62px + env(safe-area-inset-top)); }
  .paper-page-heading { padding: 21px; }
  .paper-jump-nav { top: calc(120px + env(safe-area-inset-top)); }
  .paper-question { padding: 19px 16px; }
  .paper-question-shell > h3 { font-size: 16px; }
  .paper-question-actions { display: grid; grid-template-columns: 1fr; }
  .paper-question-actions .button, .paper-question-actions .text-button { width: 100%; }
  .answer-textarea, .paper-answer-field textarea { min-height: 310px; }
  .mistake-card { padding: 17px; }
  .mistake-row { grid-template-columns: 38px 1fr; }
  .mistake-actions { grid-column: 2; }
  .modal-backdrop { align-items: end; padding: 0; }
  .modal-card, .editor-modal, .editor-modal.is-image-review-wide { width: 100%; max-height: 92dvh; padding: 27px 18px calc(20px + env(safe-area-inset-bottom)); border-radius: 22px 22px 0 0; }
  .modal-actions { position: sticky; bottom: calc(-20px - env(safe-area-inset-bottom)); z-index: 3; margin: 8px -18px calc(-20px - env(safe-area-inset-bottom)); padding: 12px 18px calc(12px + env(safe-area-inset-bottom)); background: rgba(255,255,255,.94); border-top: 1px solid var(--line); -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px); }
  .modal-actions .button { flex: 1; }
  .form-grid, .settings-inline-grid, .settings-fields, .topic-checks { grid-template-columns: 1fr; }
  .generator-checks { max-height: 235px; }
  .paper-mode-grid { grid-template-columns: 1fr; }
  .visual-question-figures.is-multi, .licensed-image-results, .visual-type-checks { grid-template-columns: 1fr; }
  .visual-image-viewport { padding: 50px 10px 15px; }
  .visual-marker { width: 42px; height: 42px; font-size: 16px; }
  .visual-marker-guide { align-items: flex-start; flex-direction: column; }
  .visual-marker-guide > div { justify-content: flex-start; }
  .visual-source-card { grid-template-columns: 1fr; }
  .visual-source-thumb { height: 190px; }
  .visual-selection-toolbar { align-items: stretch; flex-direction: column; }
  .visual-selection-toolbar > div:last-child { display: grid; grid-template-columns: minmax(0,1fr) auto; }
  .visual-selection-toolbar .button { width: 100%; }
  .visual-source-heading { align-items: stretch; flex-direction: column; }
  .visual-source-actions { justify-content: flex-start; }
  .visual-label-checks { grid-template-columns: 1fr; }
  .material-upload-actions { align-items: stretch; flex-direction: column; }
  .material-upload-actions .button { width: 100%; }
  .licensed-image-search .field > div { grid-template-columns: 1fr; }
  .licensed-image-result { grid-template-rows: 210px 1fr; }
  .licensed-image-preview { height: 210px; }
  .settings-card, .ai-settings-card, .image-ai-settings-card, .data-card, .workspace-storage-card, .diagnostics-card, .storage-card { padding: 20px; }
  .toast { bottom: calc(82px + env(safe-area-inset-bottom)); max-width: calc(100% - 30px); }
}

body.workspace-loading .app-shell { pointer-events: none; }
body.workspace-loading .topbar { opacity: .58; }
.workspace-loading-card { min-height: 220px; display: flex; align-items: center; gap: 18px; }
.workspace-loading-card > span { width: 52px; height: 52px; display: grid; place-items: center; border-radius: 18px; color: var(--accent); background: var(--accent-soft); font-size: 26px; animation: workspace-opening 1.1s linear infinite; }
.workspace-loading-card h1 { margin: 4px 0 8px; font-size: 24px; }
.workspace-loading-card p { margin: 0; color: var(--muted); }
.workspace-storage-card { border-radius: 18px; }
.workspace-storage-status { margin-top: 16px; }

@keyframes workspace-opening { to { transform: rotate(1turn); } }
.note-live-progress { margin-top:12px; text-align:left; }.note-live-progress[hidden] { display:none; }
.paper-question-badges{display:flex;align-items:center;gap:8px}.paper-question-timer{font-variant-numeric:tabular-nums;color:var(--ink-soft);font-size:.78rem;font-weight:700;border:1px solid var(--line);padding:4px 8px;border-radius:999px;min-width:38px;text-align:center;background:var(--surface,#fff)}.paper-question-timer.is-expired{color:var(--danger);border-color:currentColor;background:var(--danger-soft,#fff1f1)}
.flashcard-modal{max-width:720px;margin:0 auto}.flashcard-heading{display:flex;align-items:center;justify-content:space-between;gap:12px}.flashcard-heading h2{margin:0}.flashcard-heading>span{font-variant-numeric:tabular-nums;color:var(--muted);font-size:.82rem}.flashcard{position:relative;min-height:260px;margin:22px 0 16px;border:1px solid var(--line);border-radius:20px;background:linear-gradient(145deg,#f7f8ff,#fff);box-shadow:0 14px 32px rgba(38,48,82,.12);cursor:pointer;outline:none}.flashcard:focus-visible{box-shadow:0 0 0 4px rgba(83,100,220,.22),0 14px 32px rgba(38,48,82,.12)}.flashcard-face{min-height:260px;padding:30px;display:flex;flex-direction:column;justify-content:center;gap:12px}.flashcard-face small{color:var(--muted);font-size:.75rem;text-transform:uppercase;letter-spacing:.08em}.flashcard-front strong{font-size:clamp(1.2rem,3vw,1.75rem);line-height:1.35}.flashcard-face span{color:var(--muted);font-size:.82rem}.flashcard-back{display:none;background:#f1f7f3;border-radius:20px}.flashcard-back p{margin:0;font-size:1.05rem;line-height:1.65;white-space:pre-wrap}.flashcard.is-flipped .flashcard-front{display:none}.flashcard.is-flipped .flashcard-back{display:flex}.flashcard-actions{display:flex;justify-content:center;gap:10px;flex-wrap:wrap}.flashcard-dots{display:flex;justify-content:center;gap:5px;margin:18px 0}.flashcard-dots i{width:7px;height:7px;border-radius:50%;background:var(--line)}.flashcard-dots i.is-active{width:22px;border-radius:999px;background:var(--accent)}
.paper-timed-progress{display:flex;align-items:center;justify-content:space-between;gap:14px;margin:18px 0 12px;padding:12px 16px;border:1px solid var(--line);border-radius:12px;background:var(--surface,#fff);font-size:.86rem}.paper-timed-progress strong{color:var(--ink)}.paper-timed-progress span{color:var(--muted);font-size:.78rem}.paper-timed-pager{display:flex;align-items:center;justify-content:space-between;gap:14px;margin:18px 0;padding:14px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.paper-timed-pager>span{flex:1;text-align:center;color:var(--muted);font-size:.78rem;line-height:1.4}.paper-timed-pager button:disabled{opacity:.45;cursor:not-allowed}
@media (max-width:640px){.paper-timed-progress{align-items:flex-start;flex-direction:column;gap:4px}.paper-timed-pager{display:grid;grid-template-columns:1fr 1fr}.paper-timed-pager>span{grid-column:1/-1;grid-row:1;text-align:left;margin-bottom:4px}.paper-timed-pager button{grid-row:2}.paper-timed-pager button:last-child{grid-column:2}}
/* AI flash-card generation panel */
.flashcard-generate-panel{display:grid;justify-items:center;gap:9px;margin:24px 0;padding:28px 22px;border:1px solid var(--line);border-radius:18px;background:linear-gradient(145deg,#f7f8ff,#fff);text-align:center}.flashcard-generate-panel>span{font-size:28px;color:var(--accent)}.flashcard-generate-panel strong{font-size:1.05rem}.flashcard-generate-panel small{max-width:420px;color:var(--muted);line-height:1.5}.flashcard-generate-panel .button{margin-top:7px}
.flashcard-progress{width:100%;max-width:440px;margin-top:8px}.flashcard-progress>div:first-child{display:flex;justify-content:space-between;gap:8px;color:var(--muted);font-size:.78rem;margin-bottom:5px}.flashcard-progress strong{font-size:.78rem;color:var(--ink)}.flashcard-progress-track{height:7px;border-radius:999px;background:#e3e6f1;overflow:hidden}.flashcard-progress-track i{display:block;height:100%;width:0;border-radius:inherit;background:var(--accent);transition:width .3s ease}
.paper-time-expired-notice{margin:0 0 12px;padding:10px 12px;border-radius:10px;background:#fff2e3;color:#8a5a20;font-size:.8rem;line-height:1.45}.paper-question.is-time-expired .paper-question-timer{font-weight:800}.paper-question.is-time-expired .answer-textarea{background:#f3f3f1;color:var(--muted);cursor:not-allowed}