/* ============================================
   LLQP Exam Prep – Premium Design System v2
   ============================================ */

/* ── Design Tokens ── */
:root {
  --c-bg:          #f3efe6;
  --c-surface:     #fffdf8;
  --c-surface2:    #f8f3ea;
  --c-surface3:    #efe7da;
  --c-border:      #ddd0bc;
  --c-text:        #16141f;
  --c-text2:       #645d70;
  --c-text3:       #9a8f9f;
  --c-primary:     #0d9488;
  --c-primary2:    #0f766e;
  --c-primary-a:   rgba(13,148,136,.12);
  --c-ok:          #10b981;
  --c-ok2:         #059669;
  --c-ok-bg:       #ecfdf5;
  --c-ok-a:        rgba(16,185,129,.15);
  --c-err:         #ef4444;
  --c-err2:        #dc2626;
  --c-err-bg:      #fef2f2;
  --c-err-a:       rgba(239,68,68,.15);
  --c-warn:        #f59e0b;
  --c-warn2:       #d97706;
  --c-warn-bg:     #fffbeb;
  --c-warn-a:      rgba(245,158,11,.12);

  --radius:        16px;
  --radius-sm:     10px;
  --radius-xs:     6px;

  --shadow-xs:     0 1px 2px rgba(0,0,0,.04);
  --shadow:        0 1px 3px rgba(0,0,0,.05), 0 2px 8px rgba(0,0,0,.04);
  --shadow-md:     0 4px 16px rgba(0,0,0,.06), 0 1px 4px rgba(0,0,0,.03);
  --shadow-lg:     0 8px 32px rgba(0,0,0,.08), 0 2px 8px rgba(0,0,0,.04);

  --font:          'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display:  'Space Grotesk', 'Manrope', sans-serif;
  --ease:          cubic-bezier(.4,0,.2,1);
  --ease-out:      cubic-bezier(0,0,.2,1);
  --ease-spring:   cubic-bezier(.34,1.56,.64,1);
}

[data-theme="dark"] {
  --c-bg:        #07111f;
  --c-surface:   #0d1827;
  --c-surface2:  #132034;
  --c-surface3:  #182942;
  --c-border:    rgba(144, 191, 255, .14);
  --c-text:      #ecf4ff;
  --c-text2:     #9ab0c9;
  --c-text3:     #607893;
  --c-primary:   #38bdf8;
  --c-primary2:  #0ea5e9;
  --c-primary-a: rgba(56,189,248,.14);
  --c-ok-bg:     rgba(16,185,129,.06);
  --c-ok-a:      rgba(16,185,129,.10);
  --c-err-bg:    rgba(239,68,68,.06);
  --c-err-a:     rgba(239,68,68,.10);
  --c-warn-bg:   rgba(245,158,11,.06);
  --c-warn-a:    rgba(245,158,11,.10);

  --shadow-xs:   0 1px 2px rgba(0,0,0,.2);
  --shadow:      0 1px 3px rgba(0,0,0,.22), 0 2px 8px rgba(0,0,0,.18);
  --shadow-md:   0 4px 16px rgba(0,0,0,.25);
  --shadow-lg:   0 8px 32px rgba(0,0,0,.3);
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background:
    radial-gradient(circle at top left, rgba(56,189,248,.16), transparent 28%),
    radial-gradient(circle at 85% 12%, rgba(245,158,11,.10), transparent 20%),
    radial-gradient(circle at 50% 100%, rgba(20,184,166,.08), transparent 22%),
    var(--c-bg);
  color: var(--c-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  min-height: 100vh;
}

button { font-family: inherit; }

/* ── Utility ── */
.view        { display: none; min-height: 100vh; }
.view.active { display: flex; flex-direction: column; animation: fadeIn .22s var(--ease); }
.hidden      { display: none !important; }

.app-loading {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  background: rgba(11, 17, 32, .48);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s var(--ease);
  z-index: 2000;
}

.app-loading.is-visible {
  opacity: 1;
  pointer-events: auto;
}

.app-loading-card {
  min-width: min(320px, 100%);
  display: flex;
  align-items: center;
  gap: .85rem;
  padding: 1rem 1.1rem;
  border-radius: var(--radius);
  background: rgba(20, 27, 45, .92);
  color: #fff;
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255,255,255,.08);
}

[data-theme="light"] .app-loading-card {
  background: rgba(255,255,255,.96);
  color: var(--c-text);
  border-color: var(--c-border);
}

.app-loading-spinner {
  width: 1.15rem;
  height: 1.15rem;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,.28);
  border-top-color: #fff;
  animation: spin .7s linear infinite;
  flex-shrink: 0;
}

[data-theme="light"] .app-loading-spinner {
  border-color: rgba(99,102,241,.2);
  border-top-color: var(--c-primary);
}

.app-loading-text {
  font-size: .92rem;
  font-weight: 600;
}

.toast-root {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  display: flex;
  flex-direction: column;
  gap: .7rem;
  z-index: 2100;
  pointer-events: none;
}

.toast {
  min-width: min(360px, calc(100vw - 2rem));
  max-width: 420px;
  padding: .9rem 1rem;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--c-border);
  background: var(--c-surface);
  color: var(--c-text);
  transform: translateY(10px);
  opacity: 0;
  transition: opacity .2s var(--ease), transform .2s var(--ease);
}

.toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.toast.is-info {
  border-left: 4px solid var(--c-primary);
}

.toast.is-success {
  border-left: 4px solid var(--c-ok);
}

.toast.is-warning {
  border-left: 4px solid var(--c-warn);
}

.toast.is-error {
  border-left: 4px solid var(--c-err);
}

.toast-title {
  font-size: .88rem;
  font-weight: 700;
  margin-bottom: .2rem;
}

.toast-message {
  font-size: .84rem;
  color: var(--c-text2);
}

.wrap {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.25rem 2.5rem;
  flex: 1;
}

/* ════════════════════════════════════
   HERO
   ════════════════════════════════════ */
.hero {
  background: linear-gradient(135deg, #6366f1 0%, #4338ca 50%, #6366f1 100%);
  background-size: 200% 200%;
  animation: gradientShift 8s ease infinite;
  padding: 3.5rem 1.25rem 3rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(circle at 30% 50%, rgba(255,255,255,.08), transparent 60%);
  pointer-events: none;
}
.hero-title {
  font-size: 1.85rem; font-weight: 800; color: #fff;
  letter-spacing: -.02em; position: relative;
}
.hero-sub {
  font-size: 1.05rem; color: rgba(255,255,255,.75);
  margin-top: .35rem; font-weight: 400; position: relative;
}

/* Dark mode toggle */
.dm-toggle {
  position: absolute; top: 1.25rem; right: 1.25rem;
  width: 44px; height: 44px; border-radius: 50%;
  background: rgba(255,255,255,.12); border: 1.5px solid rgba(255,255,255,.2);
  font-size: 1.2rem; cursor: pointer;
  display: grid; place-items: center;
  transition: all .25s var(--ease);
  backdrop-filter: blur(12px);
}
.dm-toggle:hover {
  background: rgba(255,255,255,.22);
  transform: rotate(20deg) scale(1.05);
}

/* ════════════════════════════════════
   TOP BAR
   ════════════════════════════════════ */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: .85rem 1.25rem;
  background: rgba(255,255,255,.85);
  border-bottom: 1px solid var(--c-border);
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
[data-theme="dark"] .topbar {
  background: rgba(20,27,45,.85);
}
.topbar-title {
  font-size: 1rem; font-weight: 700;
  flex: 1; text-align: center;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.topbar-status {
  display: flex;
  align-items: center;
  gap: .45rem;
  flex: 0 0 auto;
}
.topbar-icon { font-size: 1.5rem; width: 60px; text-align: right; }

.pill {
  font-size: .78rem; font-weight: 700;
  background: var(--c-primary); color: #fff;
  padding: .3rem .8rem; border-radius: 20px;
  letter-spacing: .02em;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 3.45rem;
}
.pill-timer {
  min-width: 4.2rem;
  font-variant-numeric: tabular-nums;
}
.pill-timer.is-warning {
  background: linear-gradient(90deg, #ef4444, #f97316);
  color: #fff;
  box-shadow: 0 6px 16px rgba(239, 68, 68, .28);
}

/* ════════════════════════════════════
   PROGRESS BAR
   ════════════════════════════════════ */
.progress-track {
  height: 3px;
  background: var(--c-border);
  position: sticky; top: 52px; z-index: 49;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--c-primary), #a78bfa);
  border-radius: 0 4px 4px 0;
  transition: width .4s var(--ease);
  position: relative;
}
.progress-fill::after {
  content: '';
  position: absolute; right: 0; top: -1px; bottom: -1px;
  width: 20px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.35));
  border-radius: 4px;
}

/* ════════════════════════════════════
   SECTION LABEL
   ════════════════════════════════════ */
.section-label {
  font-size: .75rem; font-weight: 700; text-transform: uppercase; letter-spacing: .1em;
  color: var(--c-text3); margin-bottom: 1.25rem;
}
.muted-text {
  color: var(--c-text2); font-size: .92rem; margin-bottom: 1.5rem; line-height: 1.6;
}

.home-insights {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: .75rem;
  margin-bottom: 1rem;
}

.insight-compact-card {
  grid-column: 1 / -1;
  background: var(--c-surface);
  border: 1.5px solid var(--c-border);
  border-radius: var(--radius);
  padding: .8rem .95rem;
  box-shadow: var(--shadow-xs);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .8rem;
}

.insight-compact-row {
  display: flex;
  align-items: center;
  gap: 1.15rem;
  flex-wrap: wrap;
}

.insight-mini {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.insight-mini-label {
  font-size: .68rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--c-text3);
  font-weight: 700;
}

.insight-mini strong {
  font-size: 1rem;
  font-weight: 800;
  color: var(--c-text);
}

.insight-card,
.resume-card,
.heatmap-card {
  background: var(--c-surface);
  border: 1.5px solid var(--c-border);
  border-radius: var(--radius);
  padding: .95rem 1rem;
  box-shadow: var(--shadow-xs);
}

.insight-label {
  font-size: .72rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--c-text3);
  margin-bottom: .25rem;
  font-weight: 700;
}

.insight-value {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--c-text);
  line-height: 1.2;
}

.insight-sub {
  margin-top: .2rem;
  color: var(--c-text2);
  font-size: .8rem;
}

.resume-card {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .85rem;
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--c-primary) 14%, transparent), transparent 62%),
    var(--c-surface);
}

.resume-title {
  font-size: .88rem;
  font-weight: 700;
}

.resume-meta {
  font-size: .8rem;
  color: var(--c-text2);
  margin-top: .1rem;
}

.heatmap-card {
  grid-column: 1 / -1;
}

.heatmap-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(34px, 1fr));
  gap: .45rem;
  margin-top: .35rem;
}

.heatmap-cell {
  height: 36px;
  border-radius: 10px;
  border: 1px solid var(--c-border);
  display: grid;
  place-items: center;
  font-size: .72rem;
  font-weight: 700;
  color: var(--c-text2);
}

.heatmap-cell.lvl-0 { background: var(--c-surface2); }
.heatmap-cell.lvl-1 { background: color-mix(in srgb, var(--c-primary) 20%, var(--c-surface)); }
.heatmap-cell.lvl-2 { background: color-mix(in srgb, var(--c-primary) 35%, var(--c-surface)); }
.heatmap-cell.lvl-3 { background: color-mix(in srgb, var(--c-primary) 55%, var(--c-surface)); color: #fff; }
.heatmap-cell.lvl-4 { background: var(--c-primary); color: #fff; }

/* ════════════════════════════════════
   WRONG ANSWERS CARD
   ════════════════════════════════════ */
.wrong-wrap { margin-bottom: 1.5rem; }
.wrong-card {
  display: flex; align-items: center; gap: .85rem;
  background: linear-gradient(135deg, #ef4444, #dc2626);
  color: #fff; padding: 1rem 1.25rem; border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all .2s var(--ease);
  box-shadow: 0 2px 12px rgba(239,68,68,.2);
}
.wrong-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(239,68,68,.3);
}

/* ════════════════════════════════════
   PDF VIEWER
   ════════════════════════════════════ */
.pdf-wrap {
  max-width: 1100px;
  display: flex;
  flex-direction: column;
  gap: .75rem;
}

.pdf-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--c-text);
}

.pdf-actions {
  display: flex;
  gap: .65rem;
  flex-wrap: wrap;
  margin-bottom: .35rem;
}

.pdf-frame-shell {
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--c-surface);
  box-shadow: var(--shadow);
  min-height: 72vh;
}

.pdf-frame {
  width: 100%;
  height: 72vh;
  border: 0;
  background: #fff;
}
.wrong-icon  { font-size: 1.3rem; }
.wrong-info  { flex: 1; display: flex; flex-direction: column; gap: .15rem; }
.wrong-info strong { font-size: .92rem; }
.wrong-count { font-size: .78rem; opacity: .85; }
.wrong-arrow { font-size: 1.3rem; font-weight: 700; transition: transform .2s var(--ease); }
.wrong-card:hover .wrong-arrow { transform: translateX(4px); }

/* ════════════════════════════════════
   GRID (Topics + Tests)
   ════════════════════════════════════ */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1rem;
}

.topic-card, .practice-test-card {
  background: var(--c-surface);
  border: 1.5px solid var(--c-border);
  border-radius: var(--radius);
  padding: 1.4rem;
  cursor: pointer;
  transition: all .25s var(--ease);
  display: flex; flex-direction: column; gap: .5rem;
  position: relative;
  overflow: hidden;
}
.topic-card::before, .practice-test-card::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, var(--c-primary-a), transparent);
  opacity: 0;
  transition: opacity .25s var(--ease);
}
.topic-card:hover, .practice-test-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--c-primary);
}
.topic-card:hover::before, .practice-test-card:hover::before { opacity: 1; }
.topic-icon  { font-size: 2.2rem; position: relative; }
.topic-name  { font-size: 1.08rem; font-weight: 700; position: relative; }
.topic-description { font-size: .82rem; color: var(--c-text2); position: relative; }
.topic-meta  { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: auto; padding-top: .6rem; position: relative; }
.question-count { font-size: .75rem; color: var(--c-text2); }

.topic-card.compact-topic {
  padding: 1.05rem;
  gap: .38rem;
}

.topic-card.compact-topic .topic-icon {
  font-size: 1.7rem;
}

.topic-card.compact-topic .topic-name {
  font-size: 1rem;
}

.topic-card.compact-topic .topic-description {
  font-size: .78rem;
}

.topic-card.compact-topic .btn-start {
  margin-top: .45rem;
  padding: .48rem .9rem;
  font-size: .82rem;
}
.progress-badge {
  font-size: .7rem; font-weight: 700; background: var(--c-ok); color: #fff;
  padding: .18rem .55rem; border-radius: 20px;
}
.coming-soon-badge {
  font-size: .7rem; font-weight: 600; background: var(--c-surface3); color: var(--c-text3);
  padding: .18rem .55rem; border-radius: 20px;
}

.btn-start, .btn-start-test {
  margin-top: .6rem; padding: .55rem 1.1rem;
  background: var(--c-primary); color: #fff; border: none; border-radius: var(--radius-sm);
  font-weight: 600; font-size: .88rem; cursor: pointer;
  transition: all .2s var(--ease);
  position: relative;
}
.btn-start:hover, .btn-start-test:hover {
  background: var(--c-primary2);
  box-shadow: 0 4px 12px rgba(99,102,241,.25);
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--c-primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  font-weight: 700;
  cursor: pointer;
  transition: all .2s var(--ease);
  box-shadow: var(--shadow-xs);
}
.btn-primary:hover {
  background: var(--c-primary2);
  box-shadow: 0 6px 16px rgba(99,102,241,.25);
  transform: translateY(-1px);
}

.test-number {
  width: 2.2rem; height: 2.2rem; border-radius: 50%;
  background: var(--c-primary); color: #fff;
  display: grid; place-items: center;
  font-weight: 700; font-size: .88rem;
  position: relative;
}
.test-name { font-size: 1.02rem; font-weight: 700; position: relative; }
.test-description { font-size: .82rem; color: var(--c-text2); position: relative; }
.test-meta { font-size: .75rem; color: var(--c-text2); margin-top: auto; position: relative; }

/* ════════════════════════════════════
   COURSE CATALOG (LLQP LIFE)
   ════════════════════════════════════ */
.catalog-shell {
  grid-column: 1 / -1;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 1rem;
  box-shadow: var(--shadow-xs);
}

.catalog-breadcrumb {
  font-size: .82rem;
  color: var(--c-text2);
  margin-bottom: .35rem;
}

.catalog-heading {
  margin: 0 0 .9rem;
  font-size: 1.15rem;
}

.catalog-controls {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  align-items: center;
  margin-bottom: .9rem;
}

.catalog-search {
  min-width: 220px;
  flex: 1 1 260px;
  max-width: 440px;
  border: 1px solid var(--c-border);
  background: var(--c-surface2);
  color: var(--c-text);
  border-radius: var(--radius-sm);
  padding: .55rem .7rem;
}

.catalog-chip {
  font-size: .74rem;
  background: var(--c-surface3);
  border: 1px solid var(--c-border);
  color: var(--c-text2);
  border-radius: 999px;
  padding: .3rem .6rem;
}

.catalog-toggle {
  font-size: .8rem;
}

.catalog-toggle.is-active {
  border-color: var(--c-primary);
  color: var(--c-primary);
}

.catalog-courses {
  display: grid;
  gap: .7rem;
}

.catalog-courses.is-tiles {
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.catalog-courses.is-list {
  grid-template-columns: 1fr;
}

.catalog-subgrid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: .75rem;
}

.catalog-subcard {
  background: linear-gradient(135deg, var(--c-primary-a), transparent 60%), var(--c-surface2);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: .9rem;
  display: flex;
  flex-direction: column;
  gap: .45rem;
}

.catalog-subtitle {
  font-size: 1rem;
  font-weight: 700;
}

.catalog-subdesc {
  font-size: .8rem;
  color: var(--c-text2);
  min-height: 2.2em;
}

.catalog-submeta {
  margin-top: .2rem;
}

.catalog-course {
  background: linear-gradient(135deg, var(--c-primary-a), transparent 50%), var(--c-surface2);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: .9rem;
  display: flex;
  flex-direction: column;
  gap: .45rem;
}

.catalog-course.is-locked {
  opacity: .75;
}

.catalog-type {
  font-size: .72rem;
  color: var(--c-text3);
}

.catalog-name {
  font-size: .98rem;
  font-weight: 700;
}

.catalog-meta {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .8rem;
  color: var(--c-text2);
}

.catalog-progress {
  color: var(--c-ok);
  font-weight: 700;
}

.catalog-actions {
  margin-top: .2rem;
}

/* ════════════════════════════════════
   QUESTION NAV
   ════════════════════════════════════ */
.q-nav {
  display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: .65rem;
  margin-bottom: 1.25rem; padding: .85rem;
  background: var(--c-surface); border: 1px solid var(--c-border);
  border-radius: var(--radius); box-shadow: var(--shadow-xs);
}
.q-dots {
  min-width: 0;
  display: flex; gap: .4rem; justify-content: flex-start;
  overflow-x: auto;
  padding: .12rem 0;
  scroll-behavior: smooth;
  scrollbar-width: thin;
}

.question-dot {
  width: 2.2rem; height: 2.2rem;
  display: grid; place-items: center;
  font-size: .72rem; font-weight: 700;
  border: 2px solid var(--c-border); border-radius: var(--radius-xs);
  background: var(--c-surface); color: var(--c-text3);
  flex: 0 0 auto;
  cursor: pointer;
  transition: all .2s var(--ease);
}
.question-dot:hover:not(.is-active):not(:disabled) {
  border-color: var(--c-primary); color: var(--c-primary);
  transform: translateY(-2px); box-shadow: 0 3px 8px var(--c-primary-a);
}
.question-dot.is-viewed   { background: var(--c-surface2); color: var(--c-text2); }
.question-dot.is-bookmarked { border-color: var(--c-warn); border-width: 2.5px; }
.question-dot.is-active {
  background: var(--c-primary); color: #fff; border-color: var(--c-primary);
  box-shadow: 0 2px 8px var(--c-primary-a);
}
.question-dot.is-locked,
.question-dot:disabled {
  opacity: .48;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* Answered questions - clear visual feedback */
.question-dot.is-correct-dot {
  background: var(--c-ok); color: #fff; border-color: var(--c-ok);
  box-shadow: 0 2px 8px var(--c-ok-a);
  position: relative;
}
.question-dot.is-correct-dot::after {
  content: '✓';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 1.2em;
  font-weight: bold;
}

.question-dot.is-wrong-dot {
  background: var(--c-err); color: #fff; border-color: var(--c-err);
  box-shadow: 0 2px 8px var(--c-err-a);
  position: relative;
}
.question-dot.is-wrong-dot::after {
  content: '✗';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 1.2em;
  font-weight: bold;
}

.btn-dot-nav, .dot-nav-btn {
  width: 2.2rem; height: 2.2rem;
  display: grid; place-items: center;
  border: none; border-radius: var(--radius-xs);
  background: var(--c-primary); color: #fff;
  font-size: 1.15rem; font-weight: 700;
  cursor: pointer; transition: all .2s var(--ease);
}
.btn-dot-nav:hover, .dot-nav-btn:hover {
  background: var(--c-primary2);
  transform: translateY(-1px);
}
.btn-dot-nav:disabled {
  background: var(--c-surface2); color: var(--c-text3);
  cursor: not-allowed; transform: none;
}

/* ════════════════════════════════════
   QUESTION CARD
   ════════════════════════════════════ */
.card {
  background: var(--c-surface);
  border: 1.5px solid var(--c-border);
  border-radius: var(--radius);
  padding: 1.75rem;
  box-shadow: var(--shadow);
  margin-bottom: 1.25rem;
  animation: fadeIn .3s var(--ease);
}
.card-head {
  display: flex; justify-content: space-between; align-items: center;
  padding-bottom: .85rem; margin-bottom: 1.15rem;
  border-bottom: 1.5px solid var(--c-border);
}
.card-actions {
  display: flex; align-items: center; gap: .5rem;
}
.q-badge {
  font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em;
  background: linear-gradient(135deg, var(--c-primary), var(--c-primary2));
  color: #fff; padding: .35rem .8rem; border-radius: var(--radius-xs);
}
.btn-tts {
  border: none;
  background: var(--c-primary-a);
  color: var(--c-primary);
  padding: .4rem .7rem;
  border-radius: var(--radius-xs);
  font-size: .75rem;
  font-weight: 700;
  cursor: pointer;
  transition: all .2s var(--ease);
  display: inline-flex;
  align-items: center;
  gap: .3rem;
}
.btn-tts:hover {
  background: var(--c-primary);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 2px 8px var(--c-primary-a);
}

.btn-toggle {
  border: 1.5px solid var(--c-border);
  background: var(--c-surface2);
  color: var(--c-text2);
  padding: .4rem .7rem;
  border-radius: var(--radius-xs);
  font-size: .75rem;
  font-weight: 700;
  cursor: pointer;
  transition: all .2s var(--ease);
  display: inline-flex;
  align-items: center;
  gap: .3rem;
}
.btn-toggle:hover {
  background: var(--c-surface);
  color: var(--c-text);
  transform: translateY(-1px);
}
.btn-toggle.is-enabled {
  border-color: var(--c-primary);
  background: var(--c-primary-a);
  color: var(--c-primary);
  font-weight: 800;
}
.btn-tts[aria-pressed="true"] {
  background: var(--c-primary);
  color: #fff;
  box-shadow: 0 2px 8px var(--c-primary-a);
}
.btn-star {
  background: none; border: none; font-size: 1.5rem; cursor: pointer;
  transition: all .2s var(--ease-spring);
  line-height: 1;
}
.btn-star:hover { transform: scale(1.3) rotate(15deg); }

.q-text {
  font-size: 1.08rem; line-height: 1.85; margin-bottom: 1.4rem;
  white-space: pre-wrap; font-weight: 500;
}

/* ════════════════════════════════════
   OPTIONS
   ════════════════════════════════════ */
.opts { display: flex; flex-direction: column; gap: .65rem; }

.option {
  padding: 0;
  border: 1.5px solid var(--c-border);
  border-radius: var(--radius-sm);
  background: var(--c-surface);
  cursor: pointer; font-size: .95rem; line-height: 1.6;
  transition: all .2s var(--ease);
  display: flex; flex-direction: column;
  overflow: hidden;
}

.option-main {
  display: flex; align-items: flex-start; gap: .85rem;
  padding: .95rem 1.1rem;
}

.option-letter {
  width: 2rem; height: 2rem;
  min-width: 2rem;
  border-radius: 50%;
  display: grid; place-items: center;
  font-size: .78rem; font-weight: 700;
  background: var(--c-surface2); color: var(--c-text2);
  flex-shrink: 0;
  transition: all .25s var(--ease);
  border: 1.5px solid var(--c-border);
}
.option-text {
  flex: 1; padding-top: .15rem;
}

/* Option keyboard focus state */
.option.is-focused {
  border-color: var(--c-primary);
  background: var(--c-surface2);
  box-shadow: 0 0 0 2px var(--c-primary-a), inset 0 0 0 1px var(--c-primary);
}
.option.is-focused .option-letter {
  background: var(--c-primary);
  color: #fff;
  border-color: var(--c-primary);
}

/* Option hover */
.option:hover:not(.is-correct):not(.is-incorrect):not(.was-attempted):not(.is-dimmed) {
  border-color: var(--c-primary);
  background: var(--c-surface2);
  transform: translateX(6px);
  box-shadow: 0 2px 12px var(--c-primary-a);
}
.option:hover:not(.is-correct):not(.is-incorrect):not(.was-attempted):not(.is-dimmed) .option-letter {
  background: var(--c-primary);
  color: #fff;
  border-color: var(--c-primary);
}

/* Correct */
.option.is-correct {
  background: var(--c-ok-bg); border-color: var(--c-ok);
  box-shadow: 0 0 0 3px var(--c-ok-a);
  animation: correctPulse .6s var(--ease);
}
.option.is-correct .option-letter {
  background: var(--c-ok); color: #fff; border-color: var(--c-ok);
}
.option.is-correct .option-text { font-weight: 600; }

/* Incorrect */
.option.is-incorrect {
  background: var(--c-err-bg); border-color: var(--c-err);
  animation: shake .4s var(--ease);
}
.option.is-incorrect .option-letter {
  background: var(--c-err); color: #fff; border-color: var(--c-err);
}

/* Attempted wrong (not yet revealed) */
.option.was-attempted {
  background: var(--c-warn-bg); border-color: var(--c-warn);
  cursor: not-allowed;
  animation: shake .35s var(--ease);
}
.option.was-attempted .option-letter {
  background: var(--c-warn); color: #fff; border-color: var(--c-warn);
}
.option.was-attempted:hover { transform: none; box-shadow: none; }

/* Dimmed (unchosen options after reveal) */
.option.is-dimmed { opacity: .4; }

/* Feedback inside option */
.option-feedback {
  padding: .7rem 1rem .7rem 4rem;
  background: var(--c-warn-a);
  border-top: 1px solid var(--c-warn);
  font-size: .85rem; color: var(--c-text); line-height: 1.6;
}
.option-feedback-label {
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--c-warn);
  margin-bottom: .22rem;
}
.option-feedback p { margin: 0; }

/* ════════════════════════════════════
   ANSWER SECTION
   ════════════════════════════════════ */
.answer-box {
  margin-top: 1.5rem; padding: 1.4rem;
  background: var(--c-ok-bg);
  border: 1.5px solid var(--c-ok);
  border-radius: var(--radius-sm);
  animation: slideUp .35s var(--ease-out);
}
.answer-correct {
  font-weight: 700; color: var(--c-ok); font-size: 1rem; margin-bottom: .85rem;
  padding: .65rem .95rem; border-radius: var(--radius-xs);
  background: var(--c-ok-a);
  display: flex; align-items: center; gap: .35rem;
}

/* ════════════════════════════════════
   EXPLANATION BOX
   ════════════════════════════════════ */
.explain-box {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  padding: 1.4rem;
  margin-top: .85rem;
}
.explain-label {
  font-size: .82rem; font-weight: 700; color: var(--c-primary);
  margin-bottom: .85rem; padding-bottom: .55rem;
  border-bottom: 2px solid var(--c-primary);
  display: flex; align-items: center; gap: .4rem;
}
.explain-body {
  font-size: .98rem; line-height: 1.85; color: var(--c-text);
}
.exp-panels {
  display: grid;
  gap: .75rem;
}

.exp-panel {
  padding: .95rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--c-border);
  background: var(--c-surface2);
}

.exp-panel.is-correct {
  border-color: var(--c-ok);
  background: linear-gradient(180deg, var(--c-ok-bg), rgba(255, 255, 255, .45));
}

.exp-panel.is-focus {
  border-color: var(--c-primary);
  background: linear-gradient(180deg, var(--c-primary-a), var(--c-surface));
}

.exp-panel.is-lesson {
  border-color: rgba(56, 189, 248, .26);
  background: linear-gradient(180deg, rgba(56, 189, 248, .08), var(--c-surface));
}

.exp-panel.is-rule {
  border-style: dashed;
}

.exp-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
  margin-bottom: .55rem;
}

.exp-panel-title {
  margin: 0;
  font-size: .9rem;
  font-weight: 800;
  color: var(--c-primary);
}

.exp-panel-text {
  margin: 0;
  color: var(--c-text);
  line-height: 1.7;
}

.exp-study-points {
  display: grid;
  gap: .55rem;
}

.exp-study-point {
  padding: .72rem .8rem;
  border-radius: 12px;
  border: 1px solid var(--c-border);
  background: var(--c-surface);
}

.exp-study-label {
  margin-bottom: .22rem;
  font-size: .68rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--c-text2);
}

.exp-study-text {
  margin: 0;
  font-size: .95rem;
  line-height: 1.58;
  color: var(--c-text);
}

.exp-badge {
  min-width: 2rem;
  height: 2rem;
  display: inline-grid;
  place-items: center;
  padding: 0 .55rem;
  border-radius: 999px;
  font-size: .78rem;
  font-weight: 800;
  background: var(--c-surface);
  color: var(--c-primary);
  border: 1px solid var(--c-border);
}

.exp-badge.is-correct {
  background: var(--c-ok);
  color: #fff;
  border-color: var(--c-ok);
}

.exp-choice-highlight {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  margin-bottom: .55rem;
  padding: .4rem .65rem;
  border-radius: var(--radius-xs);
  background: rgba(16, 185, 129, .12);
  color: var(--c-ok);
  font-weight: 700;
}

.exp-choice-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: .7rem;
}

.exp-choice-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: .7rem;
  align-items: center;
  padding: .72rem .8rem;
  border-radius: var(--radius-xs);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
}

.exp-choice-pill {
  min-width: 1.9rem;
  height: 1.9rem;
  display: inline-grid;
  place-items: center;
  border-radius: 999px;
  background: var(--c-warn-a);
  color: var(--c-warn);
  font-size: .76rem;
  font-weight: 800;
  border: 1px solid var(--c-warn);
}

.exp-choice-reason {
  margin: 0;
  font-size: .9rem;
  line-height: 1.55;
  color: var(--c-text2);
}

.exp-panel-note {
  margin: .6rem 0 0;
  font-size: .85rem;
  line-height: 1.65;
  color: var(--c-text2);
}

.exp-disclosure {
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  background: var(--c-surface2);
  overflow: hidden;
}

.exp-disclosure-summary {
  list-style: none;
  cursor: pointer;
  padding: .9rem 1rem;
  font-size: .9rem;
  font-weight: 800;
  color: var(--c-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
}

.exp-disclosure-summary-text {
  min-width: 0;
}

.exp-disclosure-meta {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  padding: .25rem .55rem;
  border-radius: 999px;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  color: var(--c-text2);
  font-size: .72rem;
  font-weight: 700;
  line-height: 1;
}

.exp-disclosure-summary::-webkit-details-marker {
  display: none;
}

.exp-disclosure-summary::after {
  content: '+';
  font-size: 1.05rem;
  line-height: 1;
  color: var(--c-text2);
}

.exp-disclosure[open] .exp-disclosure-summary::after {
  content: '-';
}

.exp-disclosure-body {
  padding: 0 1rem 1rem;
}

/* Explanation inner */
.exp-heading {
  font-size: .92rem; font-weight: 700; color: var(--c-primary);
  margin: 1.15rem 0 .45rem; padding-bottom: .35rem;
  border-bottom: 1px dashed var(--c-border);
}
.explain-body .exp-heading:first-child { margin-top: 0; }

.exp-text { margin: .45rem 0; line-height: 1.85; }

.exp-list {
  list-style: disc;
  padding-left: 1.2rem;
  margin: .45rem 0;
  display: flex;
  flex-direction: column;
  gap: .2rem;
}
.exp-list li {
  padding: 0;
  background: transparent;
  border-left: none;
  border-radius: 0;
  font-size: .95rem;
  line-height: 1.72;
}
.exp-list li strong { color: var(--c-primary); }

.exp-numbered-item {
  margin: .65rem 0; padding: .9rem 1.1rem;
  background: var(--c-surface2);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
}
.exp-numbered-title {
  font-weight: 700; font-size: .9rem; color: var(--c-primary); margin-bottom: .4rem;
}
.exp-numbered-item .exp-list { margin: .25rem 0 0; }
.exp-numbered-item .exp-list li {
  background: var(--c-surface); padding: .45rem .7rem; font-size: .82rem;
}

.exp-divider {
  border: none; height: 1px; margin: .9rem 0;
  background: linear-gradient(90deg, var(--c-primary), transparent);
  opacity: .25;
}

/* ════════════════════════════════════
   AI EXPLANATION
   ════════════════════════════════════ */
.ai-box { margin-top: .85rem; }

.btn-ai {
  padding: .75rem 1.35rem; border: none; border-radius: var(--radius-sm);
  background: linear-gradient(135deg, #6366f1, #7c3aed);
  color: #fff; font-weight: 600; font-size: .9rem;
  cursor: pointer;
  transition: all .2s var(--ease);
  box-shadow: 0 2px 8px rgba(99,102,241,.2);
}
.btn-ai:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(99,102,241,.3);
}
.btn-ai:disabled { opacity: .6; cursor: wait; transform: none; }

.ai-explanation {
  padding: .9rem 1.1rem; border-radius: var(--radius-sm);
  background: linear-gradient(135deg, rgba(99,102,241,.06), rgba(124,58,237,.04));
  border: 1px solid rgba(99,102,241,.18);
  font-size: .9rem; line-height: 1.75;
}
.ai-error {
  padding: .65rem .9rem; border-radius: var(--radius-sm);
  background: var(--c-err-bg); color: var(--c-err); font-size: .85rem;
}
.loading-spinner {
  padding: .65rem; font-size: .9rem; color: var(--c-text2);
}

/* Enhanced AI Explanation Sections */
.ai-explanation-enhanced {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.ai-section {
  padding: 1rem;
  border-radius: var(--radius-sm);
  border-left: 4px solid var(--c-primary);
  background: linear-gradient(135deg, rgba(99,102,241,.04), rgba(124,58,237,.02));
}

.ai-section-title {
  font-weight: 600;
  color: var(--c-primary);
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
}

.ai-section-content {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--c-text);
}

.ai-section.ai-main {
  border-left-color: #4f46e5;
  background: linear-gradient(135deg, rgba(79,70,229,.05), rgba(99,102,241,.02));
}

.ai-section.ai-correct {
  border-left-color: #10b981;
  background: linear-gradient(135deg, rgba(16,185,129,.05), rgba(34,197,94,.02));
}

.ai-section.ai-correct .ai-section-title {
  color: #059669;
}

.ai-section.ai-incorrect {
  border-left-color: #f59e0b;
  background: linear-gradient(135deg, rgba(245,158,11,.05), rgba(251,146,60,.02));
}

.ai-section.ai-incorrect .ai-section-title {
  color: #d97706;
}

.ai-section.ai-concept {
  border-left-color: #8b5cf6;
  background: linear-gradient(135deg, rgba(139,92,246,.05), rgba(168,85,247,.02));
}

.ai-section.ai-concept .ai-section-title {
  color: #7c3aed;
}

.ai-section.ai-tip {
  border-left-color: #06b6d4;
  background: linear-gradient(135deg, rgba(6,182,212,.05), rgba(34,211,238,.02));
}

.ai-section.ai-tip .ai-section-title {
  color: #0891b2;
}

.ai-section.ai-related {
  border-left-color: #ec4899;
  background: linear-gradient(135deg, rgba(236,72,153,.05), rgba(244,114,182,.02));
}

.ai-section.ai-related .ai-section-title {
  color: #be185d;
}

.ai-section.ai-followup {
  border-left-color: #f97316;
  background: linear-gradient(135deg, rgba(249,115,22,.05), rgba(251,146,60,.02));
}

.ai-section.ai-followup .ai-section-title {
  color: #ea580c;
}

.btn-follow-up {
  padding: 0.6rem 1rem;
  font-size: 0.9rem;
  border: 1px solid var(--c-primary);
  background: transparent;
  color: var(--c-primary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
  margin-top: 0.5rem;
}

.btn-follow-up:hover:not(:disabled) {
  background: var(--c-primary);
  color: white;
}

.btn-follow-up:disabled {
  opacity: 0.6;
  cursor: wait;
}

.follow-up-composer {
  margin-top: 0.75rem;
  padding: 0.85rem;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  background: var(--c-surface2);
}

.follow-up-label {
  display: block;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--c-text2);
  margin-bottom: 0.45rem;
}

.follow-up-input {
  width: 100%;
  resize: vertical;
  min-height: 82px;
  border: 1.5px solid var(--c-border);
  border-radius: var(--radius-xs);
  padding: 0.65rem 0.75rem;
  font-family: inherit;
  font-size: 0.9rem;
  line-height: 1.45;
  color: var(--c-text);
  background: var(--c-surface);
}

.follow-up-input:focus {
  outline: none;
  border-color: var(--c-primary);
  box-shadow: 0 0 0 3px var(--c-primary-a);
}

.follow-up-actions {
  margin-top: 0.55rem;
  display: flex;
  justify-content: flex-end;
}

.ai-followup-question {
  font-size: 0.84rem;
  color: var(--c-text2);
  margin-bottom: 0.4rem;
}

/* ════════════════════════════════════
  BUTTONS
  ════════════════════════════════════ */
.btn-ghost {
  background: none; border: none; color: var(--c-text);
  font-weight: 600; font-size: .88rem; cursor: pointer;
  padding: .45rem .85rem; border-radius: var(--radius-sm);
  transition: all .2s var(--ease);
}
.btn-ghost:hover { background: var(--c-surface2); }

.btn-outline {
  background: var(--c-surface); border: 1.5px solid var(--c-border);
  color: var(--c-text); font-weight: 600; font-size: .85rem;
  padding: .6rem 1.1rem; border-radius: var(--radius-sm);
  cursor: pointer; transition: all .2s var(--ease);
}
.btn-outline:hover {
  border-color: var(--c-primary); color: var(--c-primary);
  background: var(--c-primary-a);
}

/* ════════════════════════════════════
   ACTIONS BAR
   ════════════════════════════════════ */
.actions {
  display: flex; flex-wrap: wrap; gap: .5rem; justify-content: center;
}

/* Keyboard Shortcuts Hint */
.keyboard-shortcuts-hint {
  background: var(--c-surface2);
  border: 1px dashed var(--c-border);
  border-radius: var(--radius-sm);
  padding: 0.8rem 1rem;
  margin: 1.5rem 0 0.5rem;
  font-size: 0.75rem;
  opacity: 0.85;
  transition: all .2s var(--ease);
}
.keyboard-shortcuts-hint:hover {
  opacity: 1;
  background: var(--c-surface);
  border-style: solid;
}
.hint-title {
  font-weight: 700;
  font-size: 0.8rem;
  color: var(--c-text2);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.hint-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem 1rem;
}
.hint-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.hint-key {
  font-weight: 700;
  background: var(--c-primary-a);
  color: var(--c-primary);
  padding: 0.15rem 0.4rem;
  border-radius: 3px;
  font-family: monospace;
  flex-shrink: 0;
  min-width: 3.5rem;
  text-align: center;
}
.hint-desc {
  color: var(--c-text3);
}

/* ════════════════════════════════════
   DATA TABLES (Life Tables, Mortality Data, etc.)
   ════════════════════════════════════ */
.q-text table,
.explain-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  background: var(--c-surface);
  border: 1.5px solid var(--c-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  font-size: 0.85rem;
  box-shadow: 0 2px 8px var(--c-primary-a);
}

.q-text table th,
.explain-body table th {
  background: linear-gradient(135deg, var(--c-primary), var(--c-primary2));
  color: #fff;
  font-weight: 700;
  padding: 0.85rem;
  text-align: left;
  border-right: 1px solid rgba(255,255,255,.2);
}

.q-text table th:last-child,
.explain-body table th:last-child {
  border-right: none;
}

.q-text table td,
.explain-body table td {
  padding: 0.75rem 0.85rem;
  border-right: 1px solid var(--c-border);
  border-bottom: 1px solid var(--c-border);
}

.q-text table td:last-child,
.explain-body table td:last-child {
  border-right: none;
}

.q-text table tr:last-child td,
.explain-body table tr:last-child td {
  border-bottom: none;
}

/* Alternate row coloring for better readability */
.q-text table tbody tr:nth-child(odd),
.explain-body table tbody tr:nth-child(odd) {
  background: var(--c-surface2);
}

.q-text table tbody tr:hover,
.explain-body table tbody tr:hover {
  background: var(--c-primary-a);
}

/* Highlight key numeric columns */
.q-text table td[data-type="numeric"],
.explain-body table td[data-type="numeric"] {
  font-weight: 600;
  font-family: 'Courier New', monospace;
  text-align: center;
}

/* Life table specific styling */
.life-table {
  font-size: 0.8rem;
}

.life-table .age-col {
  font-weight: 700;
  background: var(--c-primary-a);
  color: var(--c-primary);
}

.life-table .highlighted-cell {
  background: var(--c-warn-bg);
  border: 1px solid var(--c-warn);
  font-weight: 600;
}

/* ════════════════════════════════════
   FOOTER
   ════════════════════════════════════ */
.foot {
  text-align: center; padding: 2rem 1rem;
  font-size: .75rem; color: var(--c-text3);
}

/* ════════════════════════════════════
   LIST VIEW
   ════════════════════════════════════ */
.q-list { display: flex; flex-direction: column; gap: .85rem; }

.list-question-card {
  background: var(--c-surface); border: 1px solid var(--c-border);
  border-radius: var(--radius-sm); padding: 1.15rem;
  transition: all .2s var(--ease);
}
.list-question-card:hover { box-shadow: var(--shadow-md); }
.list-question-header {
  display: flex; align-items: center; gap: .55rem; margin-bottom: .55rem;
}
.list-question-num {
  font-size: .72rem; font-weight: 700; background: var(--c-primary);
  color: #fff; padding: .22rem .55rem; border-radius: 4px;
}
.list-question-text {
  font-size: .9rem; line-height: 1.65; margin-bottom: .55rem; white-space: pre-wrap;
}
.list-options { display: flex; flex-direction: column; gap: .35rem; margin-bottom: .6rem; }
.list-option {
  font-size: .82rem; padding: .42rem .65rem;
  border-radius: var(--radius-xs); background: var(--c-surface2);
}
.list-option.correct-preview {
  background: var(--c-ok-bg); font-weight: 600; color: var(--c-ok);
}
.btn-jump {
  background: var(--c-primary); color: #fff; border: none;
  padding: .45rem .95rem; border-radius: var(--radius-xs);
  font-size: .82rem; font-weight: 600; cursor: pointer;
  transition: all .2s var(--ease);
}
.btn-jump:hover {
  background: var(--c-primary2);
  transform: translateY(-1px);
  box-shadow: 0 3px 10px rgba(99,102,241,.2);
}

/* ════════════════════════════════════
   FINISH BANNER
   ════════════════════════════════════ */
.finish-banner {
  background: linear-gradient(135deg, var(--c-primary), #7c3aed, #6366f1);
  background-size: 200% 200%;
  animation: slideUp .4s var(--ease-out), gradientShift 6s ease infinite;
  color: #fff; border-radius: var(--radius);
  padding: 2.5rem 1.75rem; text-align: center;
  margin-bottom: 1.25rem;
  box-shadow: 0 8px 32px rgba(99,102,241,.3);
}
.finish-icon  { font-size: 3.5rem; margin-bottom: .65rem; }
.finish-title { font-size: 1.5rem; font-weight: 800; margin-bottom: .6rem; letter-spacing: -.01em; }
.finish-score { font-size: 1.02rem; opacity: .9; margin-bottom: .3rem; }
.finish-percent {
  font-size: 2.8rem; font-weight: 800;
  background: rgba(255,255,255,.18); display: inline-block;
  padding: .3rem 1.5rem; border-radius: var(--radius);
  margin: .6rem 0 1.15rem;
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,.15);
}
.finish-stats {
  display: flex; flex-direction: column; gap: .4rem;
  margin-bottom: 1rem; font-size: .9rem;
}
.finish-stat {
  display: flex; justify-content: center; align-items: center; gap: .6rem;
  opacity: .95;
}
.stat-label { font-weight: 600; }
.stat-value { font-weight: 700; background: rgba(255,255,255,.15); padding: .2rem .6rem; border-radius: var(--radius-xs); }
.stat-value.is-good { background: rgba(16,185,129,.22); }
.stat-value.is-warning { background: rgba(249,115,22,.22); }
.finish-actions {
  display: flex; flex-wrap: wrap; gap: .6rem; justify-content: center;
}
.btn-finish {
  padding: .7rem 1.35rem; border: 2px solid #fff; border-radius: var(--radius-sm);
  background: rgba(255,255,255,.18); color: #fff;
  font-weight: 700; font-size: .9rem; cursor: pointer;
  transition: all .2s var(--ease);
  backdrop-filter: blur(8px);
}
.btn-finish:hover {
  background: rgba(255,255,255,.32);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(255,255,255,.15);
}
.btn-finish-alt { border-color: rgba(255,255,255,.4); background: rgba(255,255,255,.08); }
.btn-finish-alt:hover { background: rgba(255,255,255,.22); }
.app-build-chip {
  position: fixed;
  right: .85rem;
  bottom: .85rem;
  z-index: 60;
  padding: .22rem .55rem;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(15,23,42,.82);
  color: rgba(255,255,255,.78);
  font-size: .68rem;
  letter-spacing: .02em;
  backdrop-filter: blur(10px);
  pointer-events: none;
  box-shadow: 0 4px 16px rgba(0,0,0,.18);
}

/* ════════════════════════════════════
   KEYFRAME ANIMATIONS
   ════════════════════════════════════ */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes correctPulse {
  0%   { box-shadow: 0 0 0 0 var(--c-ok-a); }
  50%  { box-shadow: 0 0 0 8px var(--c-ok-a); }
  100% { box-shadow: 0 0 0 3px var(--c-ok-a); }
}
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20%      { transform: translateX(-6px); }
  40%      { transform: translateX(6px); }
  60%      { transform: translateX(-4px); }
  80%      { transform: translateX(4px); }
}
@keyframes gradientShift {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* ════════════════════════════════════
   TOUCH / POINTER IMPROVEMENTS
   Prevent double-tap zoom on all interactive elements
   ════════════════════════════════════ */
button, .option, .question-dot, .topic-card, .practice-test-card,
.wrong-card, .btn-ghost, .btn-outline, .btn-primary, .btn-start,
.btn-start-test, .btn-ai, .btn-finish, .btn-jump, .btn-star, .btn-tts,
.btn-dot-nav, .dot-nav-btn {
  touch-action: manipulation;
}

/* On touch devices: disable hover transforms that don't apply to taps */
@media (hover: none) and (pointer: coarse) {
  .option:hover:not(.is-correct):not(.is-incorrect):not(.was-attempted):not(.is-dimmed) {
    transform: none;
    box-shadow: none;
    background: var(--c-surface);
    border-color: var(--c-border);
  }
  .option:hover:not(.is-correct):not(.is-incorrect):not(.was-attempted):not(.is-dimmed) .option-letter {
    background: var(--c-surface2);
    color: var(--c-text2);
    border-color: var(--c-border);
  }
  .topic-card:hover, .practice-test-card:hover {
    transform: none;
    box-shadow: var(--shadow);
    border-color: var(--c-border);
  }
  .topic-card:hover::before, .practice-test-card:hover::before { opacity: 0; }
  .wrong-card:hover { transform: none; box-shadow: 0 2px 12px rgba(239,68,68,.2); }
  .wrong-card:hover .wrong-arrow { transform: none; }
  .btn-start:hover, .btn-start-test:hover { transform: none; box-shadow: none; }
  .btn-primary:hover { transform: none; box-shadow: var(--shadow-xs); }
  .btn-ai:hover { transform: none; box-shadow: 0 2px 8px rgba(99,102,241,.2); }
  .btn-finish:hover { transform: none; box-shadow: none; }
  .btn-jump:hover { transform: none; box-shadow: none; }
  .question-dot:hover:not(.is-active) { transform: none; box-shadow: none; }
  .btn-dot-nav:hover, .dot-nav-btn:hover { transform: none; }
  .btn-outline:hover { transform: none; }
  .list-question-card:hover { box-shadow: none; }
}

/* Active/pressed states for tactile tap feedback */
@media (pointer: coarse) {
  .option:active:not(.is-correct):not(.is-incorrect):not(.was-attempted):not(.is-dimmed) {
    background: var(--c-surface2);
    border-color: var(--c-primary);
    transform: scale(.985);
    transition: transform .1s;
  }
  .topic-card:active, .practice-test-card:active { transform: scale(.98); transition: transform .1s; }
  .btn-start:active, .btn-start-test:active      { transform: scale(.97); transition: transform .1s; }
  .btn-ai:active    { transform: scale(.97); transition: transform .1s; }
  .btn-finish:active { transform: scale(.97); transition: transform .1s; }
  .wrong-card:active { transform: scale(.98); transition: transform .1s; }

  /* Minimum 44 px touch targets */
  .btn-ghost       { min-height: 44px; display: inline-flex; align-items: center; }
  .btn-outline     { min-height: 44px; }
  .btn-start, .btn-start-test { min-height: 48px; font-size: .95rem; }
  .option-main     { min-height: 52px; }
  .question-dot,
  .btn-dot-nav, .dot-nav-btn { min-width: 44px; min-height: 44px; }
}

/* ════════════════════════════════════
   RESPONSIVE
   ════════════════════════════════════ */
@media (max-width: 640px) {
  .topbar {
    padding: .65rem .75rem;
    gap: .45rem;
  }
  .topbar-icon {
    width: 34px;
    font-size: 1.2rem;
  }
  .topbar-status {
    gap: .3rem;
  }
  .pill {
    font-size: .7rem;
    padding: .25rem .55rem;
    min-width: 3rem;
  }
  .pill-timer {
    min-width: 3.7rem;
  }
  .btn-ghost {
    font-size: .8rem;
    padding: .4rem .5rem;
  }
  .topbar-title {
    font-size: .84rem;
    line-height: 1.25;
  }

  .hero       { padding: 2.25rem 1rem 2rem; }
  .hero-title { font-size: 1.4rem; }
  .hero-sub   { font-size: .92rem; }
  .wrap       { padding: 1.25rem .85rem; }
  .grid       { grid-template-columns: 1fr; }
  .card       { padding: 1.15rem; }

  .card-head {
    align-items: flex-start;
    gap: .7rem;
    flex-direction: column;
  }
  .card-actions {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: .45rem;
  }
  .btn-tts, .btn-toggle {
    justify-content: center;
    width: 100%;
    min-height: 42px;
    font-size: .76rem;
    padding: .45rem .5rem;
  }
  .btn-star {
    width: 100%;
    min-height: 42px;
    border: 1.5px solid var(--c-border);
    border-radius: var(--radius-xs);
    background: var(--c-surface2);
    font-size: 1.25rem;
  }

  .q-nav {
    grid-template-columns: 2.7rem minmax(0, 1fr) 2.7rem;
    padding: .65rem;
    gap: .45rem;
  }
  .q-dots {
    width: auto;
    padding: .08rem 0 .2rem;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
  }
  .question-dot {
    flex: 0 0 auto;
  }

  .q-text     { font-size: 1rem; line-height: 1.9; }
  .option-main { padding: .9rem; gap: .7rem; }
  .option     { font-size: .93rem; }
  .option-letter { width: 2rem; height: 2rem; min-width: 2rem; font-size: .72rem; }
  .option-feedback { padding-left: 3.6rem; font-size: .88rem; }

  .answer-box {
    padding: 1rem;
  }
  .answer-correct {
    display: block;
    font-size: .9rem;
    line-height: 1.55;
    padding: .55rem .75rem;
  }
  .explain-box {
    padding: 1rem;
    border-radius: 14px;
  }
  .explain-label {
    font-size: .8rem;
    margin-bottom: .75rem;
    padding-bottom: .4rem;
  }
  .explain-body {
    font-size: .94rem;
    line-height: 1.72;
    word-break: break-word;
    overflow-wrap: anywhere;
  }
  .exp-panels {
    gap: .6rem;
  }
  .exp-panel {
    padding: .8rem;
  }
  .exp-panel-head {
    align-items: flex-start;
    flex-wrap: wrap;
    gap: .5rem;
    margin-bottom: .5rem;
  }
  .exp-panel-title {
    font-size: .88rem;
    line-height: 1.35;
  }
  .exp-panel-text {
    font-size: .89rem;
    line-height: 1.6;
  }
  .exp-study-points {
    gap: .45rem;
  }
  .exp-study-point {
    padding: .62rem .66rem;
    border-radius: 10px;
  }
  .exp-study-label {
    font-size: .63rem;
  }
  .exp-study-text {
    font-size: .88rem;
    line-height: 1.5;
  }
  .exp-badge {
    height: 1.8rem;
    min-width: 1.8rem;
    font-size: .72rem;
  }
  .exp-heading {
    font-size: .88rem;
    margin-top: .9rem;
  }
  .exp-text {
    line-height: 1.72;
  }
  .exp-list {
    padding-left: 1rem;
  }
  .exp-list li {
    font-size: .89rem;
    line-height: 1.62;
  }
  .exp-disclosure {
    border-radius: 14px;
  }
  .exp-disclosure-summary {
    padding: .8rem;
    min-height: 3rem;
    font-size: .86rem;
    gap: .5rem;
    align-items: center;
    line-height: 1.35;
  }
  .exp-disclosure-meta {
    padding: .24rem .5rem;
    font-size: .68rem;
  }
  .exp-disclosure-body {
    padding: 0 .7rem .75rem;
  }
  .exp-choice-list {
    gap: .5rem;
  }
  .exp-choice-item {
    gap: .55rem;
    padding: .65rem .7rem;
    border-radius: 12px;
    align-items: start;
  }
  .exp-choice-pill {
    min-width: 1.7rem;
    height: 1.7rem;
    font-size: .7rem;
  }
  .exp-choice-reason {
    font-size: .84rem;
    line-height: 1.48;
  }

  .actions    { flex-direction: column; }
  .actions .btn-outline { width: 100%; text-align: center; }
  .keyboard-shortcuts-hint { display: none; }
  .question-dot { width: 2.2rem; height: 2.2rem; font-size: .65rem; }
  .btn-dot-nav, .dot-nav-btn { width: 2.2rem; height: 2.2rem; font-size: 1rem; }
  .finish-banner { padding: 2rem 1.25rem; }
  .finish-percent { font-size: 2.2rem; }
  .toast-root { left: .85rem; right: .85rem; bottom: .85rem; }
  .toast { min-width: 100%; max-width: 100%; }
  
  /* Responsive tables for mobile */
  .q-text table,
  .explain-body table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    font-size: 0.75rem;
  }
  
  .q-text table th,
  .explain-body table th {
    padding: 0.6rem;
  }
  
  .q-text table td,
  .explain-body table td {
    padding: 0.5rem 0.6rem;
  }

  .follow-up-composer {
    padding: 0.7rem;
  }

  .follow-up-input {
    font-size: 0.88rem;
    min-height: 74px;
  }

  .follow-up-actions .btn-follow-up {
    width: 100%;
    min-height: 3rem;
  }

  [data-theme="dark"] .explain-box {
    border-left: 4px solid #6366f1;
    background: linear-gradient(180deg, rgba(10, 35, 54, .9), rgba(8, 29, 47, .9));
    border-top-color: rgba(56, 189, 248, .22);
    border-right-color: rgba(56, 189, 248, .14);
    border-bottom-color: rgba(56, 189, 248, .14);
    box-shadow: 0 8px 24px rgba(0, 0, 0, .28);
  }

  [data-theme="dark"] .explain-label {
    color: #38bdf8;
    border-bottom-color: rgba(56, 189, 248, .45);
  }

  [data-theme="dark"] .explain-body {
    color: #e9f3ff;
  }
}

@media (max-width: 380px) {
  .hero-title { font-size: 1.2rem; }
  .question-dot { width: 2rem; height: 2rem; font-size: .62rem; }
  .btn-dot-nav, .dot-nav-btn { width: 2rem; height: 2rem; }
  .option-letter { width: 1.85rem; height: 1.85rem; min-width: 1.85rem; font-size: .68rem; }
  .option-feedback { padding-left: 3.3rem; }
  .q-text { font-size: .95rem; }
  .exp-panel {
    padding: .76rem .78rem;
  }
  .exp-panel-title {
    font-size: .84rem;
  }
  .exp-panel-text,
  .exp-list li,
  .exp-choice-reason {
    font-size: .85rem;
    line-height: 1.56;
  }
  .exp-disclosure-summary {
    font-size: .82rem;
  }
}

.auth-panel {
  margin: 0 0 1rem;
}

.auth-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(99,102,241,.12), rgba(79,70,229,.06));
  box-shadow: var(--shadow);
}

.auth-card-muted {
  background: var(--c-surface);
}

.auth-card-active {
  background: linear-gradient(135deg, rgba(16,185,129,.12), rgba(99,102,241,.08));
}

.auth-panel-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-text);
}

.auth-panel-copy {
  margin-top: .2rem;
  font-size: .88rem;
  color: var(--c-text2);
}

.auth-panel-actions {
  display: flex;
  gap: .65rem;
  flex-wrap: wrap;
}

.auth-modal {
  position: fixed;
  inset: 0;
  z-index: 2200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.auth-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(11,17,32,.7);
  backdrop-filter: blur(8px);
}

.auth-dialog {
  position: relative;
  width: min(460px, 100%);
  padding: 1.35rem;
  border-radius: var(--radius);
  background: var(--c-surface);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--c-border);
}

.auth-close-btn {
  position: absolute;
  top: .75rem;
  right: .75rem;
  width: 2rem;
  height: 2rem;
  border: 0;
  border-radius: 999px;
  background: var(--c-surface2);
  color: var(--c-text2);
  cursor: pointer;
  font-size: 1.1rem;
}

.auth-dialog-head {
  margin-bottom: 1rem;
}

.auth-eyebrow {
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--c-primary2);
}

.auth-title {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -.02em;
}

.auth-subtitle {
  margin-top: .35rem;
  color: var(--c-text2);
}

.auth-form {
  display: grid;
  gap: .9rem;
}

.auth-field {
  display: grid;
  gap: .35rem;
  font-size: .9rem;
  font-weight: 600;
  color: var(--c-text2);
}

.auth-field input {
  width: 100%;
  padding: .85rem .95rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--c-border);
  background: var(--c-surface2);
  color: var(--c-text);
}

.auth-turnstile {
  min-height: 66px;
}

.auth-error {
  padding: .7rem .8rem;
  border-radius: var(--radius-sm);
  background: var(--c-err-bg);
  color: var(--c-err2);
  font-size: .88rem;
}

.auth-submit {
  width: 100%;
}

.auth-secondary-actions {
  margin-top: .75rem;
  display: flex;
  justify-content: flex-end;
}

.auth-switcher {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .4rem;
  margin-top: 1rem;
  color: var(--c-text2);
  font-size: .9rem;
}

.btn-link {
  border: 0;
  background: transparent;
  color: var(--c-primary2);
  font-weight: 700;
  cursor: pointer;
}

/* Home Refresh */
#home-view {
  position: relative;
}

#home-view::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(4, 10, 20, .08), transparent 28%),
    radial-gradient(circle at 18% 18%, rgba(56, 189, 248, .12), transparent 20%),
    radial-gradient(circle at 78% 16%, rgba(251, 191, 36, .08), transparent 16%);
  pointer-events: none;
  z-index: -1;
}

.home-header {
  padding: .9rem 1.25rem .25rem;
}

.home-header-inner {
  max-width: 1240px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.home-brand-kicker {
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: #7dd3fc;
  font-weight: 800;
}

.home-brand-title {
  margin-top: .18rem;
  font-family: var(--font-display);
  font-size: 1.55rem;
  line-height: 1;
  letter-spacing: -.04em;
}

.section-label {
  margin: 1rem 0 .8rem;
  font-size: .82rem;
  letter-spacing: .16em;
  color: #7dd3fc;
}

.auth-panel {
  margin: 0 0 1rem;
}

.auth-card {
  padding: .9rem 1rem;
  border-radius: 16px;
  border: 1px solid rgba(87, 151, 212, .18);
  background:
    linear-gradient(140deg, rgba(8, 20, 34, .92), rgba(12, 30, 49, .92));
  box-shadow: 0 10px 22px rgba(0, 0, 0, .14);
}

.auth-card-active {
  background:
    radial-gradient(circle at top right, rgba(34, 197, 94, .14), transparent 34%),
    linear-gradient(140deg, rgba(6, 28, 32, .95), rgba(11, 36, 50, .92));
}

.auth-card-muted {
  background: linear-gradient(140deg, rgba(12, 24, 36, .94), rgba(10, 18, 28, .9));
}

.auth-panel-title {
  font-size: .92rem;
  font-weight: 800;
}

.auth-panel-kicker {
  margin-top: .16rem;
  font-size: .78rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: #7dd3fc;
  font-weight: 700;
}

.auth-panel-copy {
  font-size: .82rem;
}

.home-focus {
  margin-bottom: 1rem;
}

.focus-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.05rem;
  border-radius: 18px;
  border: 1px solid rgba(87, 151, 212, .16);
  background: linear-gradient(180deg, rgba(13, 24, 39, .95), rgba(8, 16, 27, .98));
  box-shadow: 0 12px 28px rgba(0, 0, 0, .14);
}

.focus-label {
  font-size: .76rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: #7dd3fc;
  font-weight: 800;
}

.focus-title {
  margin-top: .45rem;
  font-family: var(--font-display);
  font-size: clamp(1.06rem, 2vw, 1.35rem);
  line-height: 1.12;
  letter-spacing: -.03em;
}

.focus-meta {
  margin-top: .35rem;
  color: var(--c-text2);
  font-size: .92rem;
}

.focus-actions {
  display: flex;
  gap: .65rem;
  flex-wrap: wrap;
  margin-top: .75rem;
}

.focus-btn,
.focus-btn-secondary {
  min-height: 42px;
  border-radius: 12px;
  min-width: 140px;
  justify-content: center;
  text-align: center;
}

.focus-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(72px, 1fr));
  gap: .5rem;
  align-self: center;
}

.focus-stat {
  min-width: 76px;
  padding: .72rem .65rem;
  border-radius: 14px;
  background: rgba(255, 255, 255, .04);
  border: 1px solid rgba(255, 255, 255, .07);
}

.focus-stat span {
  display: block;
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--c-text3);
  font-weight: 700;
}

.focus-stat strong {
  display: block;
  margin-top: .3rem;
  font-family: var(--font-display);
  font-size: 1rem;
}

.home-insights {
  display: none;
}

.insight-compact-card,
.insight-card,
.resume-card,
.heatmap-card {
  border-radius: 24px;
  border: 1px solid rgba(87, 151, 212, .16);
  background:
    linear-gradient(180deg, rgba(13, 24, 39, .95), rgba(9, 17, 29, .98));
  box-shadow: 0 20px 40px rgba(0, 0, 0, .18);
}

.insight-compact-card {
  grid-column: span 12;
  padding: 1.25rem 1.3rem;
}

.insight-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.insight-headline {
  margin-top: .25rem;
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: -.03em;
}

.insight-compact-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: .8rem;
  width: 100%;
}

.insight-mini {
  min-height: 124px;
  padding: 1rem;
  border-radius: 20px;
  background: rgba(255, 255, 255, .03);
  border: 1px solid rgba(255, 255, 255, .06);
}

.insight-mini strong {
  margin-top: .4rem;
  font-family: var(--font-display);
  font-size: 1.7rem;
}

.insight-mini em {
  display: block;
  margin-top: .45rem;
  color: var(--c-text2);
  font-size: .82rem;
  font-style: normal;
}

.insight-progress-band {
  background:
    linear-gradient(180deg, rgba(56, 189, 248, .08), rgba(255, 255, 255, .03));
}

.insight-meter {
  height: 8px;
  margin-top: .8rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, .08);
  overflow: hidden;
}

.insight-meter span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #38bdf8, #14b8a6);
}

.insight-card {
  grid-column: span 3;
  min-height: 170px;
  padding: 1.1rem 1.1rem 1.2rem;
}

.resume-card,
.heatmap-card {
  grid-column: span 6;
}

.resume-card {
  min-height: 160px;
}

.heatmap-card {
  padding: 1.15rem;
}

.wrong-wrap {
  margin-bottom: 1rem;
}

.wrong-wrap.top-priority {
  margin-bottom: .8rem;
}

.wrong-card {
  border-radius: 18px;
  padding: .95rem 1rem;
  background:
    radial-gradient(circle at top right, rgba(251, 191, 36, .22), transparent 24%),
    linear-gradient(135deg, rgba(65, 17, 19, .98), rgba(132, 33, 34, .94));
  box-shadow: 0 12px 26px rgba(84, 23, 24, .22);
}

.grid {
  display: flex;
  flex-direction: column;
  gap: .7rem;
}

.topic-card,
.practice-test-card {
  min-height: auto;
  padding: .88rem .95rem;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, .06);
  background: rgba(255, 255, 255, .025);
  box-shadow: none;
}

.topic-card::before,
.practice-test-card::before {
  display: none;
}

.topic-card-top {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: .55rem;
  position: relative;
}

.topic-icon {
  font-size: 1.2rem;
  width: 2rem;
  height: 2rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: rgba(255, 255, 255, .04);
}

.topic-list-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: .7rem;
}

.topic-list-copy {
  min-width: 0;
}

.topic-list-action {
  display: flex;
  align-items: center;
}

.topic-chevron {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.6rem;
  height: 1.6rem;
  border-radius: 999px;
  color: var(--c-text3);
  font-size: 1.15rem;
  font-weight: 700;
}

.topic-status-muted {
  font-size: .76rem;
  color: var(--c-text3);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
}

.topic-name {
  margin-top: 0;
  font-family: var(--font-display);
  font-size: .96rem;
  line-height: 1.12;
  letter-spacing: -.04em;
}

.topic-description {
  margin-top: .18rem;
  font-size: .76rem;
  line-height: 1.38;
  color: var(--c-text2);
}

.topic-meta {
  gap: .35rem;
  padding-top: .35rem;
}

.question-count,
.progress-badge,
.coming-soon-badge {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: .12rem .5rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, .04);
  border: 1px solid rgba(255, 255, 255, .05);
  font-size: .68rem;
}

.progress-badge {
  background: rgba(20, 184, 166, .16);
  color: #d8fffb;
}

.coming-soon-badge {
  color: #ffd8bf;
  background: rgba(251, 146, 60, .14);
}

.btn-start,
.btn-start-test {
  margin-top: 0;
  min-height: 40px;
  padding: .7rem .95rem;
  border-radius: 12px;
  background: linear-gradient(90deg, #38bdf8, #0ea5e9);
  color: #07111f;
  font-weight: 800;
  letter-spacing: -.01em;
}

.home-menu {
  position: relative;
}

.home-menu-summary {
  list-style: none;
  cursor: pointer;
  width: 2.75rem;
  height: 2.75rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  border-radius: 999px;
  border: 1px solid rgba(87, 151, 212, .16);
  background: rgba(255, 255, 255, .03);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--c-text2);
}

.home-menu-summary::-webkit-details-marker {
  display: none;
}

.home-menu[open] .home-menu-summary {
  color: var(--c-text);
  background: rgba(56, 189, 248, .08);
}

.home-menu-body {
  position: absolute;
  right: 0;
  top: calc(100% + .65rem);
  z-index: 30;
  width: min(360px, calc(100vw - 2rem));
  display: grid;
  gap: .9rem;
  padding: .85rem;
  border-radius: 18px;
  border: 1px solid rgba(87, 151, 212, .16);
  background: linear-gradient(180deg, rgba(13, 24, 39, .98), rgba(8, 16, 27, .99));
  box-shadow: 0 18px 36px rgba(0, 0, 0, .22);
}

.home-menu-body .auth-panel {
  margin: 0;
}

.home-menu-body .auth-card,
.home-menu-body .auth-card-active,
.home-menu-body .auth-card-muted {
  flex-direction: column;
  align-items: stretch;
  gap: .85rem;
  padding: 1rem;
  background: rgba(255, 255, 255, .025);
  box-shadow: none;
}

.home-menu-body .auth-panel-actions {
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .55rem;
}

.home-menu-body .auth-panel-actions > * {
  width: 100%;
  min-width: 0;
}

.home-menu-body .auth-panel-copy {
  max-width: 28ch;
}

.menu-toggle-theme {
  width: 100%;
  min-height: 42px;
  border: 1px solid rgba(87, 151, 212, .16);
  border-radius: 14px;
  background: rgba(255, 255, 255, .03);
  color: var(--c-text2);
  font-weight: 700;
  cursor: pointer;
}

.menu-toggle-theme:hover {
  color: var(--c-text);
  background: rgba(56, 189, 248, .08);
}

.btn-start:hover,
.btn-start-test:hover {
  background: linear-gradient(90deg, #67d0fb, #38bdf8);
  box-shadow: 0 10px 22px rgba(56, 189, 248, .22);
}

.foot {
  padding: 1rem 1.25rem 2rem;
  color: var(--c-text3);
}

/* Quiz/Test Refresh */
.topbar {
  padding: .8rem 1rem;
  background: rgba(8, 18, 30, .72);
  border-bottom: 1px solid rgba(144, 191, 255, .08);
  box-shadow: 0 8px 24px rgba(0, 0, 0, .12);
}

.topbar-title {
  font-family: var(--font-display);
  font-size: .95rem;
  letter-spacing: -.03em;
}

.topbar-icon {
  color: #7dd3fc;
}

.pill {
  background: linear-gradient(90deg, #38bdf8, #14b8a6);
  color: #07111f;
  font-weight: 800;
}

.progress-track {
  height: 5px;
  background: rgba(255, 255, 255, .04);
}

.progress-fill {
  background: linear-gradient(90deg, #38bdf8, #14b8a6, #f59e0b);
}

.q-nav {
  padding: .75rem .85rem;
  border-radius: 16px;
  border: 1px solid rgba(87, 151, 212, .16);
  background: linear-gradient(180deg, rgba(13, 24, 39, .94), rgba(8, 16, 27, .98));
  box-shadow: 0 10px 22px rgba(0, 0, 0, .12);
}

.question-dot {
  border-radius: 12px;
  border-width: 1px;
  background: rgba(255, 255, 255, .03);
}

.question-dot.is-active {
  color: #07111f;
}

.btn-dot-nav,
.dot-nav-btn {
  border-radius: 12px;
  background: linear-gradient(135deg, #38bdf8, #0ea5e9);
  color: #07111f;
}

.card {
  position: relative;
  overflow: hidden;
  border-radius: 22px;
  border: 1px solid rgba(87, 151, 212, .16);
  background:
    radial-gradient(circle at top right, rgba(56, 189, 248, .11), transparent 22%),
    linear-gradient(180deg, rgba(13, 24, 39, .97), rgba(8, 16, 27, .99));
  box-shadow: 0 16px 32px rgba(0, 0, 0, .14);
}

.card::before {
  content: '';
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(125, 211, 252, .42), transparent);
}

.card-head {
  margin-bottom: 1.35rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}

.q-badge {
  border-radius: 999px;
  background: linear-gradient(90deg, #38bdf8, #0ea5e9);
  color: #07111f;
  padding: .48rem .92rem;
}

.btn-tts,
.btn-toggle {
  min-height: 38px;
  border-radius: 999px;
}

.btn-toggle {
  background: rgba(255, 255, 255, .04);
  border-color: rgba(255, 255, 255, .08);
}

.btn-toggle.is-enabled,
.btn-tts[aria-pressed="true"] {
  color: #07111f;
}

.btn-star {
  color: #f8fbff;
}

.q-text {
  font-family: var(--font-display);
  font-size: clamp(1rem, 1.1vw, 1.18rem);
  line-height: 1.62;
  letter-spacing: -.02em;
}

.opts {
  gap: .8rem;
}

.option {
  border-radius: 16px;
  border: 1px solid rgba(144, 191, 255, .14);
  background: rgba(255, 255, 255, .03);
}

.option-main {
  padding: .88rem .95rem;
}

.option-letter {
  border-radius: 14px;
  width: 2.2rem;
  height: 2.2rem;
  min-width: 2.2rem;
  background: rgba(255, 255, 255, .04);
  border-color: rgba(255, 255, 255, .08);
}

.option:hover:not(.is-correct):not(.is-incorrect):not(.was-attempted):not(.is-dimmed) {
  transform: translateY(-2px);
  background: rgba(56, 189, 248, .07);
}

.option-feedback {
  background: rgba(245, 158, 11, .09);
}

.answer-box {
  padding: 1.15rem;
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(16, 185, 129, .10), rgba(12, 32, 25, .6));
}

.answer-correct {
  border-radius: 16px;
}

.explain-box,
.ai-explanation,
.follow-up-composer {
  border-radius: 20px;
  background: rgba(255, 255, 255, .03);
  border-color: rgba(144, 191, 255, .12);
}

.btn-ai {
  background: linear-gradient(90deg, #38bdf8, #0ea5e9);
  color: #07111f;
  font-weight: 800;
  box-shadow: 0 10px 24px rgba(14, 165, 233, .18);
}

.actions {
  justify-content: flex-start;
  padding: .8rem .9rem;
  border-radius: 16px;
  border: 1px solid rgba(87, 151, 212, .16);
  background: linear-gradient(180deg, rgba(13, 24, 39, .94), rgba(8, 16, 27, .98));
}

.keyboard-shortcuts-hint {
  display: none;
}

.list-question-card {
  border-radius: 22px;
  border-color: rgba(87, 151, 212, .16);
  background: linear-gradient(180deg, rgba(13, 24, 39, .95), rgba(8, 16, 27, .98));
}

.finish-banner {
  background:
    radial-gradient(circle at top, rgba(251, 191, 36, .22), transparent 26%),
    linear-gradient(135deg, #0b2236, #103b52, #0f766e);
  box-shadow: 0 28px 60px rgba(0, 0, 0, .22);
  border-radius: 28px;
}

.btn-finish {
  color: #07111f;
  border-color: transparent;
  background: linear-gradient(90deg, #f8fafc, #dbeafe);
}

.btn-finish-alt {
  color: #f8fbff;
  background: rgba(255, 255, 255, .08);
  border-color: rgba(255, 255, 255, .18);
}

.pdf-frame-shell,
.catalog-shell,
.catalog-subcard,
.catalog-course {
  border-radius: 24px;
  border-color: rgba(87, 151, 212, .16);
  background: linear-gradient(180deg, rgba(13, 24, 39, .95), rgba(8, 16, 27, .98));
}

.catalog-heading,
.test-name {
  font-family: var(--font-display);
  letter-spacing: -.03em;
}

.test-number {
  color: #07111f;
  background: linear-gradient(135deg, var(--topic-color, #38bdf8), color-mix(in srgb, var(--topic-color, #38bdf8) 60%, white));
}

@media (max-width: 1100px) {
  .focus-card {
    flex-direction: column;
    align-items: stretch;
  }

  .focus-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .insight-card {
    grid-column: span 6;
  }

  .resume-card,
  .heatmap-card,
  .topic-card,
  .practice-test-card {
    grid-column: span 6;
  }
}

@media (max-width: 640px) {
  .home-header { padding: .75rem .8rem .15rem; }

  .topbar {
    padding: .72rem .8rem;
  }

  .home-header-inner,
  .insight-compact-row {
    gap: .75rem;
  }

  .home-brand-kicker {
    font-size: .66rem;
  }

  .home-brand-title {
    font-size: 1.22rem;
  }

  .focus-card {
    padding: .95rem;
    border-radius: 16px;
  }

  .focus-title {
    font-size: 1rem;
  }

  .focus-meta {
    font-size: .8rem;
  }

  .focus-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .focus-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .focus-stat {
    min-width: 0;
    padding: .75rem .6rem;
    border-radius: 14px;
  }

  .focus-stat strong {
    font-size: 1rem;
  }

  .section-label {
    margin-top: .7rem;
    margin-bottom: .6rem;
    font-size: .74rem;
    letter-spacing: .14em;
  }

  .auth-card {
    flex-direction: column;
    align-items: stretch;
    padding: .95rem 1rem;
  }

  .auth-panel-actions {
    width: 100%;
    gap: .5rem;
  }

  .auth-panel-actions > * {
    flex: 1;
  }

  .auth-panel-title {
    font-size: .95rem;
  }

  .auth-panel-copy,
  .section-note {
    font-size: .84rem;
  }

  .home-insights,
  .grid {
    grid-template-columns: 1fr;
  }

  .insight-card,
  .resume-card,
  .heatmap-card,
  .topic-card,
  .practice-test-card {
    grid-column: span 1;
  }

  .insight-head {
    flex-direction: column;
  }

  .insight-mini {
    min-height: auto;
  }

  .card {
    border-radius: 18px;
  }

  .actions {
    padding: .9rem;
  }

  .topic-card,
  .practice-test-card {
    padding: .82rem .86rem;
    border-radius: 12px;
    gap: .5rem;
  }

  .topic-list-item {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .topic-list-action {
    grid-column: auto;
    justify-content: flex-end;
  }

  .topic-name,
  .test-name {
    font-size: .9rem;
  }

  .topic-description,
  .test-description {
    font-size: .74rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .topic-meta,
  .test-meta {
    padding-top: .55rem;
  }

  .home-menu-summary {
    width: 2.5rem;
    height: 2.5rem;
  }

  .home-menu-body {
    width: min(320px, calc(100vw - 1.6rem));
    right: 0;
  }

  .wrong-card {
    padding: .85rem .9rem;
  }
}

@media (max-width: 640px) {
  #mcq-view .wrap {
    padding: .7rem .25rem 1rem;
  }

  #mcq-view .q-nav {
    padding: .42rem;
    gap: .35rem;
    border-radius: 14px;
  }

  #mcq-view .card {
    padding: .55rem;
    margin-bottom: .75rem;
    border-radius: 14px;
  }

  #mcq-view .q-text {
    margin-bottom: .85rem;
  }

  #mcq-view .option-main {
    padding: .78rem .72rem;
    gap: .55rem;
  }

  #mcq-view .option-feedback {
    padding: .56rem .65rem .56rem 2.9rem;
  }

  #mcq-view .answer-box {
    margin-top: .8rem;
    margin-inline: -.15rem;
    padding: .45rem;
    border-radius: 14px;
  }

  #mcq-view .answer-correct {
    margin-bottom: .55rem;
    padding: .5rem .6rem;
  }

  #mcq-view .explain-box,
  #mcq-view .ai-explanation,
  #mcq-view .follow-up-composer {
    margin-top: .55rem;
    padding: .55rem;
    border-radius: 12px;
  }

  #mcq-view .exp-panels,
  #mcq-view .ai-explanation-enhanced {
    gap: .5rem;
  }

  #mcq-view .exp-panel,
  #mcq-view .ai-section {
    padding: .56rem .58rem;
    border-radius: 12px;
  }

  #mcq-view .exp-panel-head,
  #mcq-view .ai-section-title {
    margin-bottom: .35rem;
  }

  #mcq-view .exp-disclosure-summary {
    padding: .6rem .65rem;
  }

  #mcq-view .exp-disclosure-body {
    padding: 0 .65rem .65rem;
  }

  #mcq-view .ai-box {
    display: grid;
    gap: .55rem;
  }

  #mcq-view #next-question-btn-top,
  #mcq-view #get-ai-explanation-btn,
  #mcq-view #hide-answer-btn {
    width: 100%;
    min-height: 3.05rem;
    display: block;
  }

  #mcq-view #next-question-btn-top {
    padding: .82rem 1rem !important;
  }

  #mcq-view #hide-answer-btn {
    margin-top: .65rem;
  }
}

@media (max-width: 420px) {
  #mcq-view .wrap {
    padding-inline: .12rem;
  }

  #mcq-view .card {
    padding: .42rem;
  }

  #mcq-view .answer-box,
  #mcq-view .explain-box,
  #mcq-view .ai-explanation,
  #mcq-view .follow-up-composer {
    padding: .48rem;
  }

  #mcq-view .exp-panel,
  #mcq-view .ai-section {
    padding: .5rem .52rem;
  }
}

/* Admin Dashboard */
.admin-dashboard {
  display: grid;
  gap: 1rem;
}

.admin-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  background: var(--c-surface);
}

.admin-mobile-tabs {
  display: none;
}

.admin-mobile-hidden {
  display: none !important;
}

.admin-toolbar h3 {
  margin: 0 0 .3rem;
}

.admin-toolbar p {
  margin: 0;
  color: var(--c-text2);
}

.admin-toolbar-actions {
  display: grid;
  grid-template-columns: auto auto minmax(180px, 1fr) auto auto;
  gap: .55rem;
  width: min(860px, 100%);
}

.admin-search-input {
  width: 100%;
  min-height: 44px;
  padding: .6rem .7rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--c-border);
  background: var(--c-surface2);
  color: var(--c-text);
}

.admin-dashboard .btn-outline,
.admin-dashboard .btn-primary {
  min-height: 44px;
}

.admin-kpi-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(120px, 1fr));
  gap: .75rem;
}

.admin-kpi-card {
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  background: var(--c-surface);
  padding: .85rem;
  display: grid;
  gap: .35rem;
}

.admin-kpi-card span {
  font-size: .78rem;
  color: var(--c-text2);
  text-transform: uppercase;
  letter-spacing: .03em;
}

.admin-kpi-card strong {
  font-size: 1.25rem;
  line-height: 1.15;
}

.admin-table-section,
.admin-detail-section {
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  background: var(--c-surface);
  padding: 1rem;
}

.admin-desktop-only {
  display: block;
}

.admin-mobile-only {
  display: none;
}

.admin-card-list {
  display: grid;
  gap: .65rem;
}

.admin-data-card {
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  background: var(--c-surface2);
  padding: .7rem;
  display: grid;
  gap: .6rem;
}

.admin-data-card.is-selected {
  border-color: color-mix(in srgb, var(--c-primary) 45%, var(--c-border));
  background: color-mix(in srgb, var(--c-primary-a) 80%, var(--c-surface2));
}

.admin-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .5rem;
}

.admin-card-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(120px, 1fr));
  gap: .45rem;
}

.admin-card-metrics span {
  display: grid;
  gap: .15rem;
}

.admin-card-metrics small {
  font-size: .72rem;
  color: var(--c-text2);
  text-transform: uppercase;
  letter-spacing: .02em;
}

.admin-card-metrics strong {
  font-size: .9rem;
  line-height: 1.2;
}

.admin-card-actions {
  display: flex;
  justify-content: flex-end;
}

.admin-table-section h4,
.admin-detail-section h4 {
  margin: 0 0 .7rem;
}

.admin-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--c-border);
  border-radius: 12px;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .9rem;
  min-width: 760px;
}

.admin-table thead th {
  text-align: left;
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .03em;
  color: var(--c-text2);
  background: var(--c-surface2);
  border-bottom: 1px solid var(--c-border);
  padding: .6rem .65rem;
}

.admin-table tbody td {
  padding: .6rem .65rem;
  border-bottom: 1px solid var(--c-border);
}

.admin-table tbody tr:last-child td {
  border-bottom: none;
}

.admin-table tbody tr.is-selected {
  background: var(--c-primary-a);
}

.admin-table-btn,
.admin-reset-btn {
  min-height: 44px;
  padding: .35rem .65rem;
  font-size: .8rem;
}

.admin-empty-row {
  text-align: center;
  color: var(--c-text2);
}

.admin-empty-card {
  border: 1px dashed var(--c-border);
  border-radius: var(--radius-sm);
  padding: .95rem;
  color: var(--c-text2);
  background: var(--c-surface2);
}

.admin-empty-card h3 {
  margin: 0 0 .35rem;
  color: var(--c-text);
}

.admin-empty-card p {
  margin: 0;
}

.admin-error {
  border: 1px solid var(--c-err);
  background: var(--c-err-bg);
  color: var(--c-err2);
  border-radius: var(--radius-sm);
  padding: .75rem .85rem;
}

.admin-student-summary {
  margin-bottom: .8rem;
  padding: .8rem;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  background: var(--c-surface2);
  display: grid;
  gap: .25rem;
}

.admin-detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-top: .35rem;
}

.admin-confirm-card {
  border: 1px solid color-mix(in srgb, var(--c-warn) 70%, var(--c-border));
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--c-warn-bg) 92%, var(--c-surface));
  padding: .85rem;
  display: grid;
  gap: .45rem;
}

.admin-confirm-card h4 {
  margin: 0;
}

.admin-confirm-card p {
  margin: 0;
  color: var(--c-text2);
  font-size: .9rem;
}

.admin-confirm-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}

.admin-undo-banner {
  border: 1px solid color-mix(in srgb, var(--c-ok) 45%, var(--c-border));
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--c-ok-bg) 92%, var(--c-surface));
  padding: .8rem .85rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: .75rem;
}

.admin-undo-banner p {
  margin: .2rem 0 0;
  color: var(--c-text2);
  font-size: .86rem;
}

.admin-pending-undo-list {
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  background: var(--c-surface2);
  padding: .75rem;
  margin-bottom: .8rem;
  display: grid;
  gap: .55rem;
}

.admin-pending-undo-list h5 {
  margin: 0;
}

.admin-undo-card {
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  padding: .6rem .65rem;
  background: var(--c-surface);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: .7rem;
}

.admin-undo-card p {
  margin: .2rem 0 0;
  color: var(--c-text2);
  font-size: .8rem;
}

.admin-undo-card.is-expired {
  opacity: .66;
}

.admin-topic-card {
  margin-top: .75rem;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  padding: .75rem;
  background: var(--c-surface2);
}

.admin-topic-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: .7rem;
  margin-bottom: .6rem;
}

.admin-topic-head h4 {
  margin: 0;
}

.admin-topic-meta {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  color: var(--c-text2);
  font-size: .82rem;
}

.admin-mobile-tip {
  margin-top: .35rem;
  font-size: .8rem;
  color: var(--c-text2);
}

.heatmap-toolbar-actions {
  grid-template-columns: repeat(4, auto);
  width: auto;
}

.heatmap-filter-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(140px, 1fr));
  gap: .6rem;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  background: var(--c-surface);
  padding: .85rem;
}

.heatmap-filter-grid-quick {
  grid-template-columns: repeat(5, minmax(120px, 1fr));
}

.heatmap-filter-grid label {
  display: grid;
  gap: .3rem;
  font-size: .78rem;
  color: var(--c-text2);
}

.heatmap-filter-grid input,
.heatmap-filter-grid select {
  width: 100%;
  min-height: 40px;
  padding: .55rem .62rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--c-border);
  background: var(--c-surface2);
  color: var(--c-text);
}

.heatmap-filter-grid button {
  align-self: end;
}

.heatmap-filter-more {
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  background: var(--c-surface);
  padding: .2rem .85rem .85rem;
}

.heatmap-filter-more > summary {
  cursor: pointer;
  color: var(--c-text2);
  font-size: .82rem;
  font-weight: 600;
  padding: .45rem 0 .35rem;
  user-select: none;
}

.heatmap-filter-more[open] > summary {
  margin-bottom: .2rem;
}

.heatmap-filter-grid-more {
  border: none;
  background: transparent;
  padding: 0;
}

.admin-swipe-hint {
  margin: 0 0 .55rem;
  font-size: .8rem;
  color: var(--c-text2);
}

@media (min-width: 641px) {
  .heatmap-filter-more {
    border: none;
    background: transparent;
    padding: 0;
  }

  .heatmap-filter-more > summary {
    display: none;
  }
}

.heatmap-overlay-wrap {
  display: grid;
  gap: .6rem;
}

.heatmap-overlay-box {
  position: relative;
  width: 100%;
  min-height: 260px;
  border-radius: 14px;
  border: 1px solid var(--c-border);
  background:
    radial-gradient(circle at top left, rgba(56, 189, 248, .12), transparent 38%),
    linear-gradient(180deg, rgba(12, 18, 29, .95), rgba(10, 14, 22, .98));
  overflow: hidden;
}

.heatmap-overlay-box::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, .04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, .04) 1px, transparent 1px);
  background-size: 8% 8%;
  opacity: .25;
}

.heatmap-overlay-layer {
  position: absolute;
  inset: 0;
}

.heatmap-point {
  position: absolute;
  border-radius: 999px;
  transform: translate(-50%, -50%);
  pointer-events: none;
  mix-blend-mode: screen;
}

.heatmap-point.is-click {
  background: rgba(248, 113, 113, .85);
  box-shadow: 0 0 0 1px rgba(248, 113, 113, .25), 0 0 18px rgba(248, 113, 113, .35);
}

.heatmap-point.is-move {
  background: rgba(56, 189, 248, .7);
  box-shadow: 0 0 0 1px rgba(56, 189, 248, .22), 0 0 16px rgba(56, 189, 248, .3);
}

.heatmap-overlay-legend {
  display: flex;
  flex-wrap: wrap;
  gap: .8rem;
  color: var(--c-text2);
  font-size: .82rem;
}

.heatmap-overlay-legend span {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
}

.heatmap-overlay-legend .dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
}

.heatmap-overlay-legend .dot-click {
  background: rgba(248, 113, 113, .9);
}

.heatmap-overlay-legend .dot-move {
  background: rgba(56, 189, 248, .85);
}

.heatmap-detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(220px, 1fr));
  gap: .8rem;
  margin-top: .7rem;
}

.heatmap-detail-grid article {
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  background: var(--c-surface2);
  padding: .7rem;
}

.heatmap-detail-grid h5 {
  margin: 0 0 .55rem;
}

.heatmap-bars {
  display: grid;
  gap: .45rem;
}

.heatmap-bar-row {
  display: grid;
  grid-template-columns: minmax(64px, 78px) minmax(150px, 1fr) minmax(72px, auto);
  gap: .45rem;
  align-items: center;
  font-size: .82rem;
}

.heatmap-bar-track {
  height: 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .08);
  overflow: hidden;
}

.heatmap-bar-fill {
  height: 100%;
  width: 0;
  border-radius: inherit;
  background: linear-gradient(90deg, #fb7185, #f97316);
}

.heatmap-bar-fill.is-scroll {
  background: linear-gradient(90deg, #38bdf8, #14b8a6);
}

.heatmap-replay-list {
  display: grid;
  gap: .5rem;
  max-height: 360px;
  overflow: auto;
}

.heatmap-replay-item {
  display: grid;
  grid-template-columns: minmax(120px, 180px) minmax(80px, 100px) 1fr;
  gap: .55rem;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  background: var(--c-surface2);
  padding: .55rem .65rem;
  font-size: .8rem;
}

@media (max-width: 980px) {
  .admin-kpi-grid {
    grid-template-columns: repeat(2, minmax(120px, 1fr));
  }

  .admin-toolbar {
    flex-direction: column;
  }

  .admin-toolbar-actions {
    grid-template-columns: 1fr 1fr;
  }

  .heatmap-toolbar-actions {
    grid-template-columns: 1fr 1fr;
    width: 100%;
  }

  .heatmap-filter-grid {
    grid-template-columns: 1fr 1fr;
  }

  .heatmap-detail-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .admin-mobile-tabs {
    position: sticky;
    top: 0;
    z-index: 8;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: .45rem;
    padding: .55rem;
    border: 1px solid var(--c-border);
    border-radius: var(--radius-sm);
    background: color-mix(in srgb, var(--c-surface) 88%, rgba(12, 18, 29, .12));
    backdrop-filter: blur(6px);
  }

  .admin-mobile-tabs .btn-outline {
    min-height: 44px;
    padding: .45rem .55rem;
    font-size: .82rem;
  }

  .admin-mobile-tabs .btn-outline.is-active {
    border-color: var(--c-primary);
    background: var(--c-primary-a);
    color: var(--c-primary);
  }

  .admin-toolbar-actions {
    grid-template-columns: 1fr;
  }

  .heatmap-toolbar-actions {
    grid-template-columns: 1fr;
  }

  .heatmap-filter-grid {
    grid-template-columns: 1fr;
  }

  .heatmap-filter-grid-quick {
    grid-template-columns: 1fr;
  }

  .heatmap-filter-more {
    padding-inline: .75rem;
  }

  .heatmap-filter-more > summary {
    font-size: .84rem;
  }

  .admin-desktop-only {
    display: none !important;
  }

  .admin-mobile-only {
    display: block;
  }

  .admin-card-metrics {
    grid-template-columns: 1fr 1fr;
  }

  .admin-detail-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .admin-confirm-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .admin-undo-banner {
    display: grid;
    grid-template-columns: 1fr;
  }

  .admin-undo-card {
    display: grid;
    grid-template-columns: 1fr;
  }

  .heatmap-overlay-box {
    min-height: 220px;
  }

  .heatmap-bar-row {
    grid-template-columns: minmax(52px, 70px) minmax(120px, 1fr) minmax(68px, auto);
    font-size: .78rem;
  }

  .heatmap-replay-item {
    grid-template-columns: 1fr;
    gap: .25rem;
    font-size: .76rem;
  }
}