/* ═══════════════════════════════════════════════════════════════
   LPI 010-160 Exam Practice — style.css v2 (with accessibility)
   ═══════════════════════════════════════════════════════════════ */

/* ── CSS Custom Properties ─────────────────────────────────────── */
:root {
  /* Palette — Default */
  --bg:        #F7F6F3;
  --card:      #FFFFFF;
  --border:    #E0DDD8;
  --txt:       #1C1A18;
  --sub:       #6B6560;
  --acc:       #D97757;
  --acc-dk:    #1C1A18;
  --green:     #00875A;
  --green-lt:  #E8F5E9;
  --red:       #C62828;
  --red-lt:    #FFEBEE;
  --warn:      #E65100;
  --shadow:    0 2px 12px rgba(0,0,0,.07);

  /* Accessibility overrides */
  --a11y-font-size:  16px;
  --a11y-letter-sp:  0;
  --a11y-line-h:     1.55;
}

/* ── High Contrast ──────────────────────────────────────────────── */
[data-contrast="high"] {
  --bg:       #FFFFFF;
  --card:     #FFFFFF;
  --border:   #000000;
  --txt:      #000000;
  --sub:      #333333;
  --acc:      #CC4400;
  --acc-dk:   #000000;
  --green:    #005500;
  --green-lt: #CCFFCC;
  --red:      #AA0000;
  --red-lt:   #FFCCCC;
  --shadow:   0 0 0 2px #000;
}

/* ── Dark Mode ──────────────────────────────────────────────────── */
[data-contrast="dark"] {
  --bg:       #1A1A1A;
  --card:     #2A2A2A;
  --border:   #444444;
  --txt:      #F0EFEC;
  --sub:      #A09A94;
  --acc:      #E08060;
  --acc-dk:   #F0EFEC;
  --green:    #4CAF50;
  --green-lt: #1B3A1E;
  --red:      #EF5350;
  --red-lt:   #3A1A1A;
  --shadow:   0 2px 12px rgba(0,0,0,.4);
}

/* ── Dyslexia-Friendly Font ─────────────────────────────────────── */
/* Uses a special CSS stack with open letter forms */
[data-font="dyslexic"] body,
[data-font="dyslexic"] .q-text,
[data-font="dyslexic"] .opt,
[data-font="dyslexic"] .exp {
  font-family: 'Comic Sans MS', 'Comic Sans', 'Verdana', 'Arial', sans-serif;
  /* Comic Sans, while often mocked, has strong letter disambiguation
     useful for dyslexia. Verdana also has wide letter forms.        */
  word-spacing: 0.15em;
}

[data-font="mono"] body {
  font-family: 'SF Mono', 'Cascadia Code', 'Fira Code', 'Courier New', monospace;
}

/* ── Reduced Motion ─────────────────────────────────────────────── */
[data-motion="off"] *,
[data-motion="off"] *::before,
[data-motion="off"] *::after {
  animation-duration: 0.001ms !important;
  transition-duration: 0.001ms !important;
}

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

/* ── Base ───────────────────────────────────────────────────────── */
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--txt);
  min-height: 100vh;
  line-height: var(--a11y-line-h);
  font-size: var(--a11y-font-size);
  letter-spacing: var(--a11y-letter-sp);
  /* Never justify — bad for dyslexia */
  text-align: left;
}

/* ── Shell ──────────────────────────────────────────────────────── */
#shell {
  max-width: 820px;
  margin: 0 auto;
  padding: 16px 14px 80px;
}

/* ── Top bar ────────────────────────────────────────────────────── */
.topbar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 0 18px;
  border-bottom: 2px solid var(--border);
  margin-bottom: 22px;
  flex-wrap: wrap;
}
.topbar-logo { font-size: 22px; font-weight: 900; letter-spacing: -.5px; flex: 1; }
.topbar-logo span { color: var(--acc); }
.topbar-nav a {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  color: var(--sub);
  transition: all .15s;
  border: 1.5px solid transparent;
  min-height: 36px; /* larger tap target */
  display: inline-flex;
  align-items: center;
}
.topbar-nav a:hover, .topbar-nav a.active {
  background: var(--acc-dk);
  color: #fff;
  border-color: var(--acc-dk);
}

/* ── Buttons ─────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 11px 22px;
  border-radius: 8px;
  font-size: calc(var(--a11y-font-size) * 0.875);
  font-weight: 700;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all .15s;
  text-decoration: none;
  background: var(--acc-dk);
  color: #fff;
  min-height: 44px; /* WCAG 2.5.5 target size */
  min-width: 44px;
  letter-spacing: var(--a11y-letter-sp);
}
.btn:hover:not(:disabled) { opacity: .85; transform: translateY(-1px); }
.btn:focus-visible { outline: 3px solid var(--acc); outline-offset: 3px; }
.btn:disabled { opacity: .4; cursor: not-allowed; transform: none; }
.btn.outline { background: transparent; color: var(--txt); border-color: var(--border); }
.btn.outline:hover:not(:disabled) { background: var(--border); }
.btn.accent { background: var(--acc); }
.btn.sm { padding: 7px 14px; min-height: 36px; }
.btn.lg { padding: 14px 28px; font-size: calc(var(--a11y-font-size)); }

.btn-row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }

/* ── Cards ───────────────────────────────────────────────────────── */
.card {
  background: var(--card);
  border: 1.5px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  box-shadow: var(--shadow);
}

/* ── Question card ───────────────────────────────────────────────── */
.q-card {
  background: var(--card);
  border: 1.5px solid var(--border);
  border-radius: 10px;
  padding: 22px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
  animation: fadeUp .2s ease;
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.q-meta {
  display: flex;
  gap: 7px;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 14px;
}
.q-num {
  font-size: 12px;
  font-weight: 700;
  color: var(--sub);
  background: var(--bg);
  padding: 3px 10px;
  border-radius: 12px;
  border: 1px solid var(--border);
}
.q-badge {
  font-size: 11px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 12px;
}
.q-src-badge {
  font-size: 10px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 10px;
  background: #E8F5E9;
  color: #1B5E20;
  border: 1px solid #C8E6C9;
}

.q-text {
  font-size: var(--a11y-font-size);
  font-weight: 600;
  margin-bottom: 18px;
  line-height: var(--a11y-line-h);
  letter-spacing: var(--a11y-letter-sp);
}
.q-text code, .opt code, .exp code {
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 1px 7px;
  border-radius: 4px;
  font-size: calc(var(--a11y-font-size) * 0.875);
  font-family: 'SF Mono', 'Cascadia Code', 'Fira Code', monospace;
}

/* ── Answer options ──────────────────────────────────────────────── */
.opts { display: flex; flex-direction: column; gap: 10px; }

.opt {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: var(--bg);
  border: 2px solid var(--border);
  border-radius: 8px;
  padding: 13px 15px;
  cursor: pointer;
  font-size: calc(var(--a11y-font-size) * 0.9375);
  line-height: var(--a11y-line-h);
  letter-spacing: var(--a11y-letter-sp);
  text-align: left;
  transition: all .13s;
  width: 100%;
  font-family: inherit;
  color: var(--txt);
  min-height: 48px; /* larger tap target */
}
.opt:hover:not(:disabled) { border-color: var(--acc-dk); background: var(--card); }
.opt:focus-visible { outline: 3px solid var(--acc); outline-offset: 2px; }
.opt:disabled { cursor: default; }

.opt-letter {
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  border: 2px solid var(--border);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 13px;
  background: var(--card);
  transition: all .13s;
}

.opt.chosen .opt-letter { background: var(--acc-dk); border-color: var(--acc-dk); color: #fff; }
.opt.chosen { border-color: var(--acc-dk); background: var(--card); }

.opt.correct { border-color: var(--green) !important; background: var(--green-lt) !important; }
.opt.correct .opt-letter { background: var(--green) !important; border-color: var(--green) !important; color: #fff !important; }

.opt.wrong { border-color: var(--red) !important; background: var(--red-lt) !important; }
.opt.wrong .opt-letter { background: var(--red) !important; border-color: var(--red) !important; color: #fff !important; }

/* ── Explanation ─────────────────────────────────────────────────── */
.exp {
  display: none;
  background: var(--green-lt);
  border: 2px solid var(--green);
  border-radius: 8px;
  padding: 14px 16px;
  margin-top: 14px;
  font-size: calc(var(--a11y-font-size) * 0.875);
  line-height: var(--a11y-line-h);
  letter-spacing: var(--a11y-letter-sp);
  color: var(--green);
}
[data-contrast="dark"] .exp { color: #81C784; }
.exp.show { display: block; }
.exp-label {
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .8px;
  margin-bottom: 6px;
  opacity: .8;
}

/* ── Progress bar ────────────────────────────────────────────────── */
.progress-wrap {
  background: var(--border);
  border-radius: 4px;
  height: 7px;
  overflow: hidden;
  margin: 8px 0;
}
.progress-fill {
  height: 100%;
  background: var(--acc);
  border-radius: 4px;
  transition: width .3s ease;
}

/* ── Sticky exam bar ─────────────────────────────────────────────── */
#examBar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--card);
  border-bottom: 2px solid var(--border);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  margin: -22px -14px 20px;
}
.timer {
  font-size: 20px;
  font-weight: 900;
  letter-spacing: 1px;
  min-width: 64px;
  font-variant-numeric: tabular-nums;
}
.timer.warn { color: var(--red); animation: blink 1s infinite; }
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:.5} }

/* ── Navigation bar ──────────────────────────────────────────────── */
.nav-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 0 0;
  flex-wrap: wrap;
}
.nav-bar .spacer { flex: 1; }
.nav-info { font-size: 13px; color: var(--sub); font-weight: 600; }

/* ── Score screen ────────────────────────────────────────────────── */
.score-big { font-size: 64px; font-weight: 900; letter-spacing: -3px; line-height: 1; }
.score-pct { font-size: 24px; font-weight: 700; margin: 6px 0 4px; }
.score-msg { font-size: 15px; color: var(--sub); margin-bottom: 20px; }

.breakdown {
  display: flex; gap: 10px; flex-wrap: wrap;
  justify-content: center; margin: 16px 0 24px;
}
.breakdown-item { border-radius: 10px; padding: 10px 18px; text-align: center; min-width: 80px; }
.breakdown-num { display: block; font-size: 24px; font-weight: 900; }
.breakdown-lbl { font-size: 12px; font-weight: 700; opacity: .8; }

/* ── Filters / pills ─────────────────────────────────────────────── */
.filters { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 16px; }
.pill {
  padding: 7px 15px; border-radius: 20px; font-size: 13px; font-weight: 700;
  cursor: pointer; border: 2px solid var(--border); background: var(--card);
  transition: all .13s; color: var(--txt); min-height: 36px;
}
.pill:hover { border-color: var(--acc-dk); }
.pill.on { background: var(--acc-dk); color: #fff; border-color: var(--acc-dk); }

/* ── Home cards ──────────────────────────────────────────────────── */
.home-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px,1fr)); gap: 14px; margin: 20px 0; }
.home-card {
  background: var(--card); border: 2px solid var(--border); border-radius: 12px;
  padding: 20px; cursor: pointer; text-decoration: none; color: var(--txt);
  display: block; transition: all .18s;
}
.home-card:hover { border-color: var(--acc); box-shadow: 0 6px 20px rgba(0,0,0,.1); transform: translateY(-2px); }
.home-card:focus-visible { outline: 3px solid var(--acc); outline-offset: 3px; }
.home-card .icon { font-size: 32px; margin-bottom: 10px; }
.home-card h3 { font-size: 16px; font-weight: 800; margin-bottom: 5px; }
.home-card p { font-size: 13px; color: var(--sub); line-height: 1.4; }
.home-card .tag { display: inline-block; margin-top: 8px; font-size: 11px; font-weight: 700; background: var(--acc); color: #fff; padding: 2px 8px; border-radius: 8px; }

/* ── Misc utilities ──────────────────────────────────────────────── */
.stat-row { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 16px; }
.stat { background: var(--card); border: 2px solid var(--border); border-radius: 8px; padding: 8px 14px; font-size: 13px; font-weight: 600; }
.stat span { color: var(--acc); font-weight: 800; }
.section-hd { font-size: 12px; font-weight: 800; text-transform: uppercase; letter-spacing: .8px; color: var(--sub); margin-bottom: 10px; }
.review-ok   { border-left: 4px solid var(--green); }
.review-fail { border-left: 4px solid var(--red); }
.review-skip { border-left: 4px solid var(--warn); }
.mt8{margin-top:8px} .mt16{margin-top:16px} .mt24{margin-top:24px}
.mb8{margin-bottom:8px} .mb16{margin-bottom:16px}
.center{text-align:center} .muted{color:var(--sub)} .small{font-size:13px}

/* ── Accessibility FAB & Panel ───────────────────────────────────── */
#a11yFab {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 200;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--acc-dk);
  color: #fff;
  border: none;
  font-size: 22px;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(0,0,0,.25);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all .15s;
}
#a11yFab:hover { transform: scale(1.1); }
#a11yFab:focus-visible { outline: 3px solid var(--acc); outline-offset: 3px; }

#a11yOverlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.45);
  z-index: 300;
  align-items: flex-end;
  justify-content: flex-end;
  padding: 20px;
}

#a11yPanel {
  background: var(--card);
  border: 2px solid var(--border);
  border-radius: 14px;
  padding: 20px;
  width: 100%;
  max-width: 360px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 8px 40px rgba(0,0,0,.25);
  animation: slideUp .2s ease;
}
@keyframes slideUp { from{transform:translateY(20px);opacity:0} to{transform:translateY(0);opacity:1} }

.a11y-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  font-size: 15px;
}
.a11y-header button {
  background: none; border: none; font-size: 18px; cursor: pointer;
  color: var(--sub); width: 32px; height: 32px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
}
.a11y-header button:hover { background: var(--bg); }

.a11y-group { margin-bottom: 14px; }
.a11y-label { font-size: 11px; font-weight: 800; text-transform: uppercase; letter-spacing: .7px; color: var(--sub); margin-bottom: 7px; }

.a11y-pills { display: flex; gap: 6px; flex-wrap: wrap; }
.a11y-pill {
  padding: 6px 13px; border-radius: 16px; font-size: 13px; font-weight: 600;
  cursor: pointer; border: 2px solid var(--border); background: var(--bg); color: var(--txt);
  transition: all .12s; min-height: 34px;
}
.a11y-pill:hover { border-color: var(--acc-dk); }
.a11y-pill.a11y-on { background: var(--acc-dk); color: #fff; border-color: var(--acc-dk); }

.a11y-reset {
  width: 100%; margin-top: 8px; padding: 9px; border-radius: 8px;
  background: none; border: 2px solid var(--border); color: var(--sub);
  font-size: 13px; font-weight: 600; cursor: pointer;
}
.a11y-reset:hover { border-color: var(--red); color: var(--red); }

/* ── Responsive ──────────────────────────────────────────────────── */
@media (max-width: 580px) {
  .topbar { gap: 6px; }
  .q-text { font-size: calc(var(--a11y-font-size) * 0.9375); }
  .score-big { font-size: 48px; }
  .home-grid { grid-template-columns: 1fr 1fr; }
  #a11yOverlay { padding: 10px; align-items: flex-end; justify-content: stretch; }
  #a11yPanel { max-width: 100%; border-radius: 14px 14px 0 0; }
}
@media (max-width: 380px) { .home-grid { grid-template-columns: 1fr; } }

/* ── Fill-in Question Styles ─────────────────────────── */
.fill-wrap {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  margin: 12px 0;
}
.fill-input {
  flex: 1;
  min-width: 200px;
  padding: 10px 14px;
  border: 2px solid var(--border);
  border-radius: 8px;
  background: var(--card);
  color: var(--txt);
  font-size: var(--a11y-font-size, 15px);
  font-family: monospace;
  letter-spacing: 0.02em;
  outline: none;
  transition: border-color .15s;
}
.fill-input:focus { border-color: var(--acc-dk); }
.fill-result {
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 14px;
  width: 100%;
  font-family: inherit;
}
.fill-ok  { background: var(--green-lt); color: var(--green); border-left: 4px solid var(--green); }
.fill-wrong { background: #FFEBEE; color: var(--red); border-left: 4px solid var(--red); }

/* ── Multi-select Styles ──────────────────────────────── */
.opt-check { cursor: pointer; }
.opt-selected {
  border-color: var(--acc-dk) !important;
  background: #EEF3FF !important;
}
[data-contrast="dark"] .opt-selected { background: #1a2a50 !important; }
[data-contrast="high"] .opt-selected { border-color: #000 !important; background: #ddf !important; }

.multi-hint {
  margin-top: 8px;
  font-size: 12px;
  color: var(--sub);
  font-style: italic;
}
.opt-check.correct { border-color: var(--green) !important; background: var(--green-lt) !important; }
.opt-check.wrong   { border-color: var(--red) !important; background: #FFEBEE !important; }
.opt-check.disabled, .opt-check[disabled] { cursor: not-allowed; opacity: 0.85; pointer-events: none; }


/* ── External Validated Badge ────────────────────────── */
.q-src-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 7px;
  border-radius: 8px;
  font-size: 11px;
  font-weight: 700;
  margin-left: 4px;
}

/* ── Fill-in Question Styles ─────────────────────────── */
.fill-wrap {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  margin: 12px 0;
}
.fill-input {
  flex: 1;
  min-width: 200px;
  padding: 10px 14px;
  border: 2px solid var(--border);
  border-radius: 8px;
  background: var(--card);
  color: var(--txt);
  font-size: var(--a11y-font-size, 15px);
  font-family: monospace;
  letter-spacing: 0.02em;
  outline: none;
  transition: border-color .15s;
}
.fill-input:focus { border-color: var(--acc-dk); }
.fill-result {
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 14px;
  width: 100%;
  font-family: inherit;
}
.fill-ok  { background: var(--green-lt); color: var(--green); border-left: 4px solid var(--green); }
.fill-wrong { background: #FFEBEE; color: var(--red); border-left: 4px solid var(--red); }
[data-contrast="dark"] .fill-ok  { background: #1B3A1F; }
[data-contrast="dark"] .fill-wrong { background: #3A1B1B; }
.mt16 { margin-top: 16px; }

/* ── Multi-select Styles ──────────────────────────────── */
.opt-check { cursor: pointer; }
.opt-selected,
.opt.chosen {
  border-color: var(--acc-dk) !important;
  background: #EEF3FF !important;
}
[data-contrast="dark"] .opt-selected,
[data-contrast="dark"] .opt.chosen { background: #1a2a50 !important; }
.multi-hint {
  margin-top: 8px;
  font-size: 12px;
  color: var(--sub);
  font-style: italic;
}
.opt-check.correct { border-color: var(--green) !important; background: var(--green-lt) !important; }
.opt-check.wrong   { border-color: var(--red) !important; background: #FFEBEE !important; }
.opt-check.disabled, .opt-check[disabled] { cursor: not-allowed; opacity: 0.85; pointer-events: none; }


/* ═══════════════════════════════════════════════════════════
   PATCH v3 — Bug fixes, new features, colorblind modes
   ══════════════════════════════════════════════════════════= */

/* ── Logo as clickable link (a tag instead of div) ────────── */
.topbar-logo {
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}
.topbar-logo:hover { opacity: .85; }
.topbar-logo:focus {
  outline: 3px solid var(--acc-dk);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ── Tab description banner ───────────────────────────────── */
.tab-desc {
  background: var(--card);
  border-left: 4px solid var(--acc-dk);
  border-radius: 0 8px 8px 0;
  padding: 10px 16px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--sub);
  margin-bottom: 18px;
}
.tab-desc strong { color: var(--txt); }

/* ── Source badges ─────────────────────────────────────────── */
.badge-pdf  { background: #E8F5E9; color: #1B5E20; }
.badge-ext  { background: #E3F2FD; color: #1565C0; }
.badge-multi{ background: #FFF3E0; color: #E65100; }
.badge-fill { background: #F3E5F5; color: #6A1B9A; }

/* ── Fill-in question ─────────────────────────────────────── */
.fill-wrap {
  display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin: 12px 0;
}
.fill-input {
  flex: 1; min-width: 200px; padding: 10px 14px;
  border: 2px solid var(--border); border-radius: 8px;
  background: var(--card); color: var(--txt);
  font-size: var(--a11y-font-size, 15px); font-family: monospace;
  outline: none; transition: border-color .15s;
}
.fill-input:focus { border-color: var(--acc-dk); box-shadow: 0 0 0 3px rgba(0,98,204,.15); }
.fill-result {
  padding: 10px 14px; border-radius: 8px; font-size: 14px; width: 100%;
}
.fill-ok   { background: var(--green-lt); color: var(--green); border-left: 4px solid var(--green); }
.fill-wrong{ background: #FFEBEE; color: var(--red); border-left: 4px solid var(--red); }
.mt16 { margin-top: 16px; }

/* ── Multi-select ──────────────────────────────────────────── */
.opt-check { cursor: pointer; }
.opt-selected,
.opt.chosen {
  border-color: var(--acc-dk) !important;
  background: #EEF3FF !important;
}
.opt-check.correct { border-color: var(--green) !important; background: var(--green-lt) !important; }
.opt-check.wrong   { border-color: var(--red) !important; background: #FFEBEE !important; }
.opt-check.disabled, .opt-check[disabled] { cursor: not-allowed; opacity: 0.85; pointer-events: none; }

.opt-tick  { margin-left: auto; color: var(--green); font-weight: 700; }
.multi-hint{ margin-top: 8px; font-size: 12px; color: var(--sub); font-style: italic; }

/* ── Large tap targets mode ───────────────────────────────── */
[data-targets="large"] .opt           { min-height: 52px; padding: 12px 16px; }
[data-targets="large"] .fill-input    { padding: 13px 16px; min-height: 50px; }
[data-targets="large"] .btn           { min-height: 48px; padding: 12px 20px; }
[data-targets="large"] .pill          { min-height: 44px; padding: 10px 18px; }
[data-targets="large"] .a11y-pill     { min-height: 44px; }
[data-targets="large"] #a11yFab       { width: 60px; height: 60px; font-size: 22px; }

/* ── Reduced motion ───────────────────────────────────────── */
[data-motion="off"] *, [data-motion="off"] *::before, [data-motion="off"] *::after {
  animation-duration: .01ms !important;
  transition-duration: .01ms !important;
}

/* ── Dark mode fills/multi ────────────────────────────────── */
[data-contrast="dark"] .fill-ok   { background: #1B3A1F; color: #81C784; }
[data-contrast="dark"] .fill-wrong{ background: #3A1B1B; color: #EF9A9A; }
[data-contrast="dark"] .opt-selected,
[data-contrast="dark"] .opt.chosen{ background: #1a2a50 !important; }
[data-contrast="dark"] .tab-desc  { background: #1e1e1e; }
[data-contrast="dark"] .badge-pdf { background: #1B3A1F; color: #A5D6A7; }
[data-contrast="dark"] .badge-ext { background: #0D2137; color: #90CAF9; }

/* ════════════════════════════════════════════════════════════
   COLORBLIND MODES
   ════════════════════════════════════════════════════════════ */

/* Deuteranopia / Protanopia — red-green colorblindness
   Replace red/green with blue/orange (safe pair) */
[data-contrast="cb-deu"] {
  --green:    #0066CC;
  --green-lt: #D6E8FF;
  --red:      #CC6600;
  --warn:     #994400;
  --acc:      #005BB5;
  --acc-dk:   #003D80;
}
[data-contrast="cb-deu"] .opt.correct { background: #D6E8FF !important; border-color: #0066CC !important; }
[data-contrast="cb-deu"] .opt.wrong   { background: #FFE8CC !important; border-color: #CC6600 !important; }
[data-contrast="cb-deu"] .fill-ok     { background: #D6E8FF; color: #0066CC; border-color: #0066CC; }
[data-contrast="cb-deu"] .fill-wrong  { background: #FFE8CC; color: #CC6600; border-color: #CC6600; }
[data-contrast="cb-deu"] .progress-fill { background: #0066CC; }
[data-contrast="cb-deu"] .q-card.review-ok   { border-left-color: #0066CC; }
[data-contrast="cb-deu"] .q-card.review-fail { border-left-color: #CC6600; }

/* Tritanopia — blue-yellow colorblindness
   Replace blue with red; keep greens as high-contrast teal */
[data-contrast="cb-tri"] {
  --green:    #007860;
  --green-lt: #CCEFEA;
  --red:      #CC0044;
  --warn:     #883300;
  --acc:      #CC0044;
  --acc-dk:   #990033;
}
[data-contrast="cb-tri"] .opt.correct { background: #CCEFEA !important; border-color: #007860 !important; }
[data-contrast="cb-tri"] .opt.wrong   { background: #FFCCD9 !important; border-color: #CC0044 !important; }
[data-contrast="cb-tri"] .fill-ok     { background: #CCEFEA; color: #007860; border-color: #007860; }
[data-contrast="cb-tri"] .fill-wrong  { background: #FFCCD9; color: #CC0044; border-color: #CC0044; }
[data-contrast="cb-tri"] .progress-fill { background: #007860; }

/* Achromatopsia — complete colorblindness (greyscale)
   All feedback via shape + pattern, no color reliance */
[data-contrast="cb-achr"] {
  --green:    #222;
  --green-lt: #EEE;
  --red:      #555;
  --warn:     #777;
  --acc:      #333;
  --acc-dk:   #111;
  --bg:       #FFF;
  --card:     #F8F8F8;
  --border:   #999;
  --txt:      #000;
  --sub:      #555;
}
[data-contrast="cb-achr"] .opt.correct {
  background: #EEE !important; border: 3px solid #000 !important;
  outline: 3px dashed #000; outline-offset: 2px;
}
[data-contrast="cb-achr"] .opt.wrong {
  background: #CCC !important; border: 3px solid #555 !important;
  text-decoration: line-through;
}
[data-contrast="cb-achr"] .fill-ok    { background: #EEE; color: #000; border-left: 5px solid #000; }
[data-contrast="cb-achr"] .fill-wrong { background: #CCC; color: #333; border-left: 5px dashed #555; }
[data-contrast="cb-achr"] .progress-fill { background: #333; }
[data-contrast="cb-achr"] .q-src-badge { filter: grayscale(1); }
[data-contrast="cb-achr"] .topbar      { background: #FFF; border-bottom: 2px solid #000; }

/* ── Focus indicators (important for keyboard/motor users) ── */
:focus-visible {
  outline: 3px solid var(--acc-dk, #0062CC);
  outline-offset: 3px;
  border-radius: 4px;
}
[data-contrast="cb-achr"] :focus-visible {
  outline: 4px solid #000;
  outline-offset: 4px;
}
[data-contrast="high"] :focus-visible {
  outline: 4px solid #FFD700;
  outline-offset: 4px;
}

/* ── Skip-to-main link (keyboard navigation) ─────────────── */
.skip-link {
  position: absolute; top: -40px; left: 0;
  background: var(--acc-dk); color: #fff;
  padding: 8px 16px; border-radius: 0 0 8px 8px;
  font-size: 14px; font-weight: 700; z-index: 9999;
  transition: top .2s;
}
.skip-link:focus { top: 0; }