:root {
  --color-primary: #1B3A6B;
  --color-primary-light: #2A5298;
  --color-accent: #00A398;
  --color-accent-red: #F01828;
  --color-accent-warm: #FFBD0A;
  --color-text: #1a1a2e;
  --color-text-muted: #6b7280;
  --color-border: #C5CCD3;
  --color-bg: #f5f5f5;
}

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

body {
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  padding: 2rem;
  font-family: system-ui, sans-serif;
}

.page-title {
  text-align: center;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.page-subtitle {
  text-align: center;
  color: var(--color-text-muted);
  margin-bottom: 2.5rem;
  font-size: 0.95rem;
}

/* ── Grille 2×2 ── */
.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  max-width: 1400px;
  margin: 0 auto;
}

@media (max-width: 900px) { .grid { grid-template-columns: 1fr; } }

/* ── Carte de combinaison ── */
.combo-card {
  background: #fff;
  border: 1px solid var(--color-border);
  padding: 0;
  overflow: hidden;
}

.combo-header {
  background: var(--color-primary);
  color: #fff;
  padding: 1rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.combo-header h2 {
  font-size: 1.1rem;
  font-weight: 700;
  font-family: system-ui;
}

.combo-header .combo-num {
  background: var(--color-accent-red);
  color: #fff;
  font-weight: 700;
  font-size: 0.85rem;
  padding: 0.15rem 0.6rem;
  margin-right: 0.6rem;
}

.combo-header .combo-tags {
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  opacity: 0.8;
}

.combo-body {
  padding: 1.5rem;
}

/* ── Font info badges ── */
.font-info {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.font-badge {
  font-size: 0.7rem;
  font-family: system-ui;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.2rem 0.6rem;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
}

.font-badge strong {
  color: var(--color-primary);
}

/* ── Exemples de contenu ── */
.sample-hero {
  text-align: center;
  background: var(--color-accent-warm);
  padding: 1.5rem 1rem;
  margin-bottom: 1.25rem;
}

.sample-hero h1 {
  font-size: clamp(1.6rem, 5vw, 2.2rem);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 0.3rem;
  letter-spacing: -0.5px;
}

.sample-hero p {
  font-size: 1rem;
  opacity: 0.9;
}

.sample-section-title {
  font-size: clamp(1.3rem, 3vw, 1.6rem);
  font-weight: 700;
  text-align: center;
  color: var(--color-text);
  padding-bottom: 0.6rem;
  margin-bottom: 1rem;
  position: relative;
}

.sample-section-title::after {
  content: '';
  display: block;
  height: 3px;
  width: 40px;
  background: var(--color-accent);
  margin: 0.4rem auto 0;
}

.sample-h2 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-primary);
  border-left: 2px solid var(--color-primary);
  padding-left: 0.75rem;
  margin: 1rem 0 0.5rem;
}

.sample-h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0.75rem 0 0.4rem;
}

.sample-body {
  font-size: 0.95rem;
  line-height: 1.8;
  text-align: justify;
  color: var(--color-text);
  margin-bottom: 0.75rem;
  hyphens: auto;
}

.sample-small {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
}

.sample-xs {
  font-size: 0.72rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.3rem;
}

.sample-micro {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.15rem 0.5rem;
  display: inline-block;
  margin-bottom: 0.75rem;
}

.sample-micro.oblig {
  background: var(--color-accent-red);
  color: #fff;
}

.sample-micro.facul {
  background: var(--color-accent-warm);
  color: var(--color-text);
}

/* ── KPI mini-bar ── */
.sample-kpi {
  display: flex;
  border: 1px solid var(--color-border);
  margin: 0.75rem 0;
  background: #fff;
}

.sample-kpi-item {
  flex: 1;
  text-align: center;
  padding: 0.5rem 0.25rem;
  border-right: 1px solid var(--color-border);
}

.sample-kpi-item:last-child { border-right: none; }

.sample-kpi-value {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-primary);
}

.sample-kpi-label {
  font-size: 0.72rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

/* ── Concept box ── */
.sample-concept {
  background: #f3f3f3;
  border-left: 3px solid var(--color-accent);
  padding: 0.75rem 1rem;
  margin: 0.75rem 0;
}

.sample-concept strong {
  color: var(--color-primary);
}

/* ── Discrimination test ── */
.discrim-test {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  padding: 0.5rem 0.75rem;
  border: 1px dashed var(--color-border);
  margin-top: 0.75rem;
  line-height: 1.8;
}

.discrim-test span {
  color: var(--color-accent-red);
  font-weight: 600;
}

/* ── Combinaison-specific font stacks ── */
.combo-1 .heading-font { font-family: 'Space Grotesk', sans-serif; }
.combo-1 .body-font   { font-family: 'Source Sans 3', sans-serif; }

.combo-2 .heading-font { font-family: 'DM Sans', sans-serif; }
.combo-2 .body-font   { font-family: 'Atkinson Hyperlegible Next', sans-serif; }

.combo-3 .heading-font { font-family: 'Outfit', sans-serif; }
.combo-3 .body-font   { font-family: 'Lexend', sans-serif; }

.combo-4 .heading-font { font-family: 'Josefin Sans', sans-serif; }
.combo-4 .body-font   { font-family: 'IBM Plex Sans', sans-serif; }

/* ── Footer ── */
.page-footer {
  text-align: center;
  margin-top: 2.5rem;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  font-family: system-ui;
}

/* ══════════════════════════════════════════════════════════════
   Dark mode
   ══════════════════════════════════════════════════════════════ */
html[data-theme="dark"] .design-section {
  background: var(--dm-surface);
  border-color: var(--dm-border);
  color: var(--dm-text);
}
html[data-theme="dark"] .design-section h2 {
  color: var(--dm-text-heading);
}