@import url('https://fonts.googleapis.com/css2?family=Literata:ital,opsz,wght@0,7..72,400;0,7..72,500;0,7..72,600;0,7..72,700;1,7..72,400&family=Inter:wght@400;500;600;700&display=swap');

:root {
  --ink: #1c2833;
  --ink-soft: #4c5a68;
  --paper: #eef1ee;
  --card: #ffffff;
  --line: #d8dcd6;
  --teal: #2f5d62;
  --teal-dark: #234548;
  --gold: #b3893f;
  --gold-soft: #e9dcbd;
  --good: #2f7d4f;
  --good-bg: #e7f3ea;
  --bad: #a63a2e;
  --bad-bg: #fbebe8;

  --serif: 'Literata', 'Noto Serif', Georgia, serif;
  --sans: 'Inter', 'Noto Sans', -apple-system, BlinkMacSystemFont, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 32px 16px 64px;
}

a { color: var(--teal); }

.wrap {
  width: 100%;
  max-width: 700px;
}

/* ---------- Masthead ---------- */
.masthead {
  margin-bottom: 28px;
  padding-bottom: 18px;
  border-bottom: 2px solid var(--ink);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
}

.masthead h1 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.65rem;
  margin: 0;
  letter-spacing: -0.01em;
}

.masthead .tagline {
  font-size: 0.82rem;
  color: var(--ink-soft);
  font-style: italic;
  font-family: var(--serif);
}

/* ---------- Progress ribbon ---------- */
.progress-rail {
  height: 3px;
  background: var(--line);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 6px;
}
.progress-fill {
  height: 100%;
  background: var(--gold);
  transition: width 0.35s ease;
}
.progress-label {
  font-size: 0.8rem;
  color: var(--ink-soft);
  margin-bottom: 22px;
  display: flex;
  justify-content: space-between;
}

/* ---------- Cards / panels ---------- */
.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 28px;
}

.panel + .panel { margin-top: 18px; }

/* ---------- Setup screen ---------- */
.field-label {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1rem;
  margin: 0 0 12px;
  color: var(--ink);
}

.module-dropdown {
  position: relative;
  margin-bottom: 26px;
}

.dropdown-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 12px 16px;
  font-family: var(--sans);
  font-size: 0.95rem;
  color: var(--ink);
  cursor: pointer;
  text-align: left;
  transition: border-color 0.15s;
}
.dropdown-trigger:hover { border-color: var(--teal); }
.dropdown-trigger[aria-expanded="true"] {
  border-color: var(--teal);
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
}
.dropdown-trigger .chevron {
  color: var(--ink-soft);
  font-size: 1.1rem;
  line-height: 1;
  transition: transform 0.15s;
  flex-shrink: 0;
}
.dropdown-trigger[aria-expanded="true"] .chevron { transform: rotate(180deg); }

.dropdown-panel {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  z-index: 20;
  background: var(--card);
  border: 1px solid var(--teal);
  border-top: none;
  border-bottom-left-radius: 3px;
  border-bottom-right-radius: 3px;
  max-height: 320px;
  overflow-y: auto;
  box-shadow: 0 8px 16px -8px rgba(28, 40, 51, 0.18);
}

.dropdown-actions {
  display: flex;
  gap: 4px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  background: var(--card);
}

.link-btn {
  background: none;
  border: none;
  color: var(--teal-dark);
  font-family: var(--sans);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 6px 8px;
  border-radius: 3px;
  cursor: pointer;
}
.link-btn:hover { background: #e4ece9; }

.module-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.module-row {
  border-bottom: 1px solid var(--line);
}

.module-row label {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 4px;
  cursor: pointer;
}

.module-row input[type="checkbox"] {
  width: 17px;
  height: 17px;
  accent-color: var(--teal);
  flex-shrink: 0;
}

.module-row .m-title {
  flex: 1;
  font-size: 0.97rem;
}

.module-row .m-count {
  font-size: 0.8rem;
  color: var(--ink-soft);
  font-variant-numeric: tabular-nums;
}

.empty-note {
  font-size: 0.9rem;
  color: var(--ink-soft);
  padding: 10px 4px;
}

.count-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}

.count-btn {
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 0.92rem;
  padding: 9px 16px;
  border-radius: 3px;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.count-btn:hover { border-color: var(--teal); }
.count-btn.active {
  background: var(--teal);
  border-color: var(--teal);
  color: #fff;
}

.pool-note {
  font-size: 0.83rem;
  color: var(--ink-soft);
  margin: -14px 0 24px;
  min-height: 1.2em;
}

.btn-primary {
  display: inline-block;
  background: var(--ink);
  color: #fff;
  border: none;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 0.98rem;
  padding: 13px 26px;
  border-radius: 3px;
  cursor: pointer;
  transition: background 0.15s;
}
.btn-primary:hover:not(:disabled) { background: var(--teal-dark); }
.btn-primary:disabled { background: #b7bdb9; cursor: not-allowed; }

.btn-secondary {
  display: inline-block;
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
  font-family: var(--sans);
  font-size: 0.92rem;
  padding: 11px 20px;
  border-radius: 3px;
  cursor: pointer;
}
.btn-secondary:hover { border-color: var(--ink); }

/* ---------- Quiz screen ---------- */
.q-meta {
  font-family: var(--serif);
  font-style: italic;
  color: var(--ink-soft);
  font-size: 0.85rem;
  margin-bottom: 10px;
}

.q-module-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-family: var(--sans);
  font-style: normal;
  color: var(--teal-dark);
  background: #e4ece9;
  padding: 2px 8px;
  border-radius: 2px;
  margin-left: 8px;
}

.q-text {
  font-family: var(--serif);
  font-size: 1.32rem;
  line-height: 1.42;
  margin: 0 0 24px;
}

.options { list-style: none; margin: 0 0 28px; padding: 0; }

.option-row + .option-row { margin-top: 10px; }

.option-row label {
  display: flex;
  align-items: flex-start;
  gap: 13px;
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 14px 16px;
  cursor: pointer;
  transition: border-color 0.12s, background 0.12s;
}
.option-row label:hover { border-color: var(--teal); background: #f6f9f7; }
.option-row input[type="radio"] {
  margin-top: 3px;
  width: 17px;
  height: 17px;
  accent-color: var(--teal);
  flex-shrink: 0;
}
.option-row input[type="radio"]:checked + .opt-body {
  color: var(--ink);
}
.option-row.selected label {
  border-color: var(--teal);
  background: #f1f7f4;
}
.opt-letter {
  font-family: var(--serif);
  font-weight: 600;
  color: var(--ink-soft);
}
.opt-text { font-size: 0.98rem; line-height: 1.4; }

.quiz-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.quiz-nav .hint {
  font-size: 0.82rem;
  color: var(--ink-soft);
}

/* ---------- Results screen ---------- */
.score-block {
  text-align: center;
  padding: 8px 0 20px;
}
.score-number {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 3rem;
  line-height: 1;
  color: var(--ink);
}
.score-number .of {
  font-size: 1.4rem;
  color: var(--ink-soft);
  font-weight: 500;
}
.score-pct {
  margin-top: 6px;
  font-size: 0.95rem;
  color: var(--ink-soft);
}

.result-item {
  border-top: 1px solid var(--line);
  padding: 18px 0;
}
.result-item:last-child { padding-bottom: 4px; }

.result-item .r-head {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin-bottom: 10px;
}

.r-badge {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.78rem;
  font-weight: 700;
  color: #fff;
  margin-top: 2px;
}
.r-badge.ok { background: var(--good); }
.r-badge.no { background: var(--bad); }

.r-question {
  font-family: var(--serif);
  font-size: 1.05rem;
  line-height: 1.4;
}

.r-answer {
  font-size: 0.92rem;
  padding: 8px 12px;
  border-radius: 3px;
  margin: 6px 0 0 32px;
}
.r-answer.your-wrong { background: var(--bad-bg); color: var(--bad); }
.r-answer.correct { background: var(--good-bg); color: var(--good); }
.r-answer .lab { font-weight: 700; margin-right: 4px; }

.results-actions {
  display: flex;
  gap: 12px;
  margin-top: 26px;
  flex-wrap: wrap;
}

.hidden { display: none !important; }

footer.note {
  margin-top: 30px;
  font-size: 0.78rem;
  color: var(--ink-soft);
  text-align: center;
}

@media (max-width: 480px) {
  .panel { padding: 20px; }
  .score-number { font-size: 2.4rem; }
  .masthead { flex-direction: column; align-items: flex-start; gap: 4px; }
}