:root {
  --bg: #F7F4ED;
  --surface: #FFFFFF;
  --surface-alt: #FBF8F1;
  --fg: #1B1F2A;
  --muted: #6B6E78;
  --accent: #B45A36;
  --accent-dark: #8E4426;
  --accent-2: #2C5260;
  --accent-2-dark: #1F3B47;
  --success: #2D6A4F;
  --success-bg: #E3F1E8;
  --error: #B83A26;
  --error-bg: #FBE7E2;
  --border: #E3DDD0;
  --border-strong: #C9C0AE;
  --shadow-sm: 0 1px 2px rgba(27, 31, 42, 0.04);
  --shadow-md: 0 4px 16px rgba(27, 31, 42, 0.06);
  --shadow-lg: 0 12px 40px rgba(27, 31, 42, 0.08);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Public Sans', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.55;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, .display {
  font-family: 'Fraunces', Georgia, serif;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.15;
}

.container {
  max-width: 920px;
  margin: 0 auto;
  padding: 56px 32px 80px;
}

/* ===== HEADER ===== */
.header {
  margin-bottom: 32px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--border);
}
.eyebrow {
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 12px;
}
.header h1 {
  font-size: clamp(36px, 5vw, 52px);
  font-weight: 700;
  margin-bottom: 10px;
}
.header p {
  color: var(--muted);
  font-size: 16px;
  max-width: 620px;
}

/* ===== MIXED QUIZ PANEL ===== */
.mixed-panel {
  background: linear-gradient(135deg, #1B1F2A 0%, #2C3340 100%);
  color: #F7F4ED;
  border-radius: 14px;
  padding: 28px 32px;
  margin-bottom: 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}
.mixed-panel::before {
  content: '';
  position: absolute;
  top: -40px;
  right: -40px;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(180, 90, 54, 0.15) 0%, transparent 70%);
  border-radius: 50%;
}
.mixed-text { flex: 1 1 280px; position: relative; z-index: 1; }
.mixed-eyebrow {
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #E8C39F;
  font-weight: 600;
  margin-bottom: 8px;
}
.mixed-text h2 {
  font-family: 'Fraunces', serif;
  font-size: 26px;
  font-weight: 600;
  margin-bottom: 6px;
  color: #F7F4ED;
}
.mixed-text p {
  font-size: 14px;
  color: rgba(247, 244, 237, 0.7);
  max-width: 380px;
}
.mixed-text #mixed-total { color: #E8C39F; font-weight: 600; }

.mixed-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
  position: relative;
  z-index: 1;
}
.mixed-btn {
  font-family: inherit;
  background: rgba(247, 244, 237, 0.08);
  color: #F7F4ED;
  border: 1px solid rgba(247, 244, 237, 0.2);
  padding: 9px 16px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}
.mixed-btn:hover {
  background: var(--accent);
  border-color: var(--accent);
}
.mixed-btn-all {
  background: var(--accent);
  border-color: var(--accent);
}
.mixed-btn-all:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
}

/* ===== STATS ===== */
.stats-bar {
  display: flex;
  gap: 28px;
  padding: 18px 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: 40px;
  box-shadow: var(--shadow-sm);
  flex-wrap: wrap;
}
.stat { display: flex; flex-direction: column; gap: 2px; min-width: 100px; }
.stat-label {
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
}
.stat-value {
  font-family: 'Fraunces', serif;
  font-size: 24px;
  font-weight: 600;
  color: var(--fg);
}

/* ===== SECTIONS ===== */
.section { margin-bottom: 40px; }
.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.section-head h2 { font-size: 26px; font-weight: 600; }
.section-head .section-meta {
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
}
.section-desc {
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 16px;
  max-width: 720px;
}

/* ===== MODULE CARDS ===== */
.module-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px;
}
.module-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 20px 18px;
  cursor: pointer;
  transition: all 0.18s ease;
  text-align: left;
  font-family: inherit;
  color: inherit;
  width: 100%;
  box-shadow: var(--shadow-sm);
}
.module-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent);
}
.module-card.lender:hover { border-color: var(--accent-2); }
.module-card .num {
  font-family: 'Fraunces', serif;
  font-size: 12px;
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.05em;
  margin-bottom: 6px;
}
.module-card.lender .num { color: var(--accent-2); }
.module-card .title {
  font-family: 'Fraunces', serif;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.25;
  margin-bottom: 6px;
  color: var(--fg);
}
.module-card .tier-pill {
  display: inline-block;
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--accent-2);
  background: #EDF2F4;
  padding: 2px 8px;
  border-radius: 10px;
  margin-bottom: 10px;
}
.module-card .meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--muted);
  margin-top: 8px;
}
.module-card .score-badge {
  font-family: 'Fraunces', serif;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 12px;
}
.module-card .score-badge.high { background: var(--success-bg); color: var(--success); }
.module-card .score-badge.mid { background: #FDF3E0; color: #8B5A1A; }
.module-card .score-badge.low { background: var(--error-bg); color: var(--error); }

/* ===== QUIZ VIEW ===== */
.quiz-header { margin-bottom: 24px; }
.back-btn {
  background: none; border: none; color: var(--muted);
  font-family: inherit; font-size: 13px; cursor: pointer;
  padding: 6px 0; margin-bottom: 16px;
  font-weight: 500; letter-spacing: 0.02em;
  transition: color 0.15s ease;
}
.back-btn:hover { color: var(--accent); }
.quiz-title { font-size: clamp(26px, 4vw, 36px); margin-bottom: 8px; }
.quiz-meta {
  color: var(--muted); font-size: 14px;
  display: flex; gap: 16px; align-items: center;
}
.quiz-meta .divider { color: var(--border-strong); }
.progress {
  height: 4px; background: var(--border); border-radius: 2px;
  margin: 24px 0 32px; overflow: hidden;
}
.progress-fill {
  height: 100%; background: var(--accent);
  transition: width 0.3s ease;
}

/* ===== QUESTION ===== */
.question-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 32px;
  box-shadow: var(--shadow-md);
}
.question-num {
  font-family: 'Fraunces', serif;
  font-size: 13px; color: var(--accent);
  font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; margin-bottom: 10px;
}
.question-type {
  display: inline-block; font-size: 10px;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--muted);
  background: var(--surface-alt);
  border: 1px solid var(--border);
  padding: 3px 9px; border-radius: 4px;
  margin-left: 8px; vertical-align: middle;
  font-weight: 600;
}
.question-module-tag {
  display: inline-block; font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--accent-2);
  background: #EDF2F4;
  padding: 3px 9px; border-radius: 4px;
  margin-left: 6px; vertical-align: middle;
  font-weight: 600;
}
.question-text {
  font-family: 'Fraunces', serif;
  font-size: 22px; line-height: 1.4;
  color: var(--fg); font-weight: 500;
  margin-bottom: 26px;
}

.options { display: flex; flex-direction: column; gap: 10px; }
.option {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 18px;
  cursor: pointer;
  transition: all 0.15s ease;
  font-family: inherit; font-size: 15px;
  color: var(--fg); text-align: left;
  display: flex; align-items: center; gap: 14px;
  line-height: 1.45;
}
.option:hover:not(:disabled) {
  border-color: var(--accent);
  background: var(--surface);
}
.option:disabled { cursor: default; }
.option-letter {
  flex-shrink: 0;
  width: 26px; height: 26px;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  display: flex; align-items: center; justify-content: center;
  font-family: 'Fraunces', serif;
  font-weight: 600; font-size: 13px; color: var(--muted);
}
.option.correct { background: var(--success-bg); border-color: var(--success); }
.option.correct .option-letter { background: var(--success); color: white; border-color: var(--success); }
.option.incorrect { background: var(--error-bg); border-color: var(--error); }
.option.incorrect .option-letter { background: var(--error); color: white; border-color: var(--error); }

/* ===== FEEDBACK ===== */
.feedback {
  margin-top: 22px;
  padding: 18px 20px;
  border-radius: 10px;
  border-left: 3px solid;
  font-size: 14.5px;
  line-height: 1.55;
  animation: slideIn 0.25s ease-out;
}
@keyframes slideIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}
.feedback.correct { background: var(--success-bg); border-color: var(--success); }
.feedback.incorrect { background: var(--error-bg); border-color: var(--error); }
.feedback strong {
  font-family: 'Fraunces', serif;
  display: block; margin-bottom: 4px;
  font-size: 14px; letter-spacing: 0.02em;
}
.feedback.correct strong { color: var(--success); }
.feedback.incorrect strong { color: var(--error); }

/* ===== ACTIONS ===== */
.actions {
  margin-top: 24px;
  display: flex; justify-content: flex-end; gap: 10px;
}
.btn {
  font-family: inherit; font-size: 14px; font-weight: 600;
  padding: 11px 22px; border-radius: 8px;
  cursor: pointer; border: 1px solid;
  transition: all 0.15s ease;
  letter-spacing: 0.01em;
}
.btn-primary {
  background: var(--accent); color: white; border-color: var(--accent);
}
.btn-primary:hover { background: var(--accent-dark); border-color: var(--accent-dark); }
.btn-secondary {
  background: var(--surface); color: var(--fg); border-color: var(--border-strong);
}
.btn-secondary:hover { background: var(--surface-alt); border-color: var(--accent); }

/* ===== RESULTS ===== */
.results-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 40px;
  text-align: center;
  box-shadow: var(--shadow-md);
  margin-bottom: 24px;
}
.score-display {
  font-family: 'Fraunces', serif;
  font-size: 88px; font-weight: 700;
  line-height: 1; margin: 8px 0 4px;
}
.score-display.high { color: var(--success); }
.score-display.mid { color: #8B5A1A; }
.score-display.low { color: var(--error); }
.score-fraction {
  font-family: 'Public Sans', sans-serif;
  font-size: 18px; color: var(--muted);
  margin-bottom: 24px;
}
.score-message {
  font-family: 'Fraunces', serif;
  font-size: 20px; color: var(--fg);
  margin-bottom: 28px;
  max-width: 480px; margin-left: auto; margin-right: auto;
  line-height: 1.4;
}
.review-section { margin-top: 24px; }
.review-section h3 { font-size: 22px; margin-bottom: 16px; }
.review-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--error);
  border-radius: 10px;
  padding: 18px 22px; margin-bottom: 12px;
}
.review-item .rq {
  font-family: 'Fraunces', serif;
  font-size: 15px; font-weight: 500;
  margin-bottom: 8px; color: var(--fg);
}
.review-item .ra { font-size: 13.5px; color: var(--muted); margin-bottom: 4px; }
.review-item .ra strong { color: var(--fg); font-weight: 600; }
.review-item .rexp {
  font-size: 13.5px; color: var(--fg);
  margin-top: 8px; padding-top: 8px;
  border-top: 1px solid var(--border);
}

/* ===== FOOTER ===== */
.footer {
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex; justify-content: space-between;
  align-items: center;
  font-size: 12px; color: var(--muted);
}
.reset-btn {
  background: none; border: none; color: var(--muted);
  font-family: inherit; font-size: 12px;
  cursor: pointer; text-decoration: underline;
  text-underline-offset: 3px;
}
.reset-btn:hover { color: var(--error); }

.hidden { display: none !important; }

@media (max-width: 600px) {
  .container { padding: 32px 20px 60px; }
  .question-card { padding: 24px 20px; }
  .results-card { padding: 28px 20px; }
  .score-display { font-size: 64px; }
  .stats-bar { gap: 18px; padding: 16px 18px; }
  .mixed-panel { padding: 22px; }
  .mixed-text h2 { font-size: 22px; }
}