/* === Variables & reset === */
:root {
  --font-main: 'Segoe UI', system-ui, sans-serif;
  --color-bg: #f8f7f4;
  --color-surface: #ffffff;
  --color-border: rgba(0,0,0,0.10);
  --color-text: #1a1a18;
  --color-muted: #6b6a64;
  --color-hint: #9b9a93;
  --radius-card: 12px;
  --radius-pill: 20px;
  --shadow-card: 0 1px 4px rgba(0,0,0,0.06);

  /* Types de jours */
  --new-bg:      #E1F5EE;
  --new-color:   #0F6E56;
  --new-border:  #1D9E75;

  --transfer-bg:    #FAEEDA;
  --transfer-color: #854F0B;
  --transfer-border:#BA7517;

  --review-bg:    #E6F1FB;
  --review-color: #0C447C;
  --review-border:#185FA5;

  --rest-bg:    #F1EFE8;
  --rest-color: #5F5E5A;
  --rest-border:#888780;
}

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

body {
  font-family: var(--font-main);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  font-size: 16px;
}

/* === Layout === */
.page-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 1.5rem 2rem;
}
.page-header h1 { font-size: 1.4rem; font-weight: 600; }
.page-header p  { font-size: 0.875rem; color: var(--color-muted); margin-top: 0.25rem; }

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding: 1rem 2rem;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}
.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8125rem;
  color: var(--color-muted);
}
.legend-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.programme {
  max-width: 860px;
  margin: 0 auto;
  padding: 1.5rem 1rem 3rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* === Carte jour === */
.day-card {
  background: var(--color-surface);
  border: 0.5px solid var(--color-border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

/* Accentuation latérale selon type */
.day-card[data-type="review"]  { border-left: 3px solid var(--review-border); }
.day-card[data-type="rest"]    { border-left: 3px solid var(--rest-border); }

.day-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  cursor: pointer;
  user-select: none;
  border: none;
  background: transparent;
  width: 100%;
  text-align: left;
}
.day-header:hover { background: rgba(0,0,0,0.025); }
.day-header:focus-visible { outline: 2px solid var(--review-border); outline-offset: -2px; }

.day-num {
  min-width: 34px; height: 34px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 600; font-size: 0.875rem;
  flex-shrink: 0;
}
.day-card[data-type="new"]      .day-num { background: var(--new-bg);      color: var(--new-color); }
.day-card[data-type="transfer"] .day-num { background: var(--transfer-bg); color: var(--transfer-color); }
.day-card[data-type="review"]   .day-num { background: var(--review-bg);   color: var(--review-color); }
.day-card[data-type="rest"]     .day-num { background: var(--rest-bg);      color: var(--rest-color); }

.day-info { flex: 1; }
.day-title { font-weight: 500; font-size: 0.9375rem; }
.day-sub   { font-size: 0.8125rem; color: var(--color-muted); margin-top: 1px; }

.day-badge {
  font-size: 0.75rem;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  white-space: nowrap;
}
.badge-evaluation {
  background: #FCEBEB; color: #791F1F;
  border: 0.5px solid #F09595;
}
.day-chevron { font-size: 0.75rem; color: var(--color-hint); transition: transform 0.2s; }
.day-card.open .day-chevron { transform: rotate(90deg); }

/* === Corps du jour === */
.day-body {
  display: none;
  padding: 0 1rem 1rem;
}
.day-card.open .day-body { display: block; }

.section-label {
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-hint);
  margin: 0.875rem 0 0.4rem;
}

/* Objectifs */
.objective-list { display: flex; flex-direction: column; gap: 0.35rem; }
.objective-item {
  font-size: 0.875rem;
  color: var(--color-text);
  padding-left: 0.875rem;
  border-left: 2px solid var(--color-border);
  line-height: 1.5;
}

/* Formules mathématiques */
.formulas-block {
  background: #fafafa;
  border: 0.5px solid var(--color-border);
  border-radius: 8px;
  padding: 0.625rem 0.875rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.formula-item {
  font-size: 0.9375rem;
  color: var(--color-text);
}

/* Ressources / Outils / Processus */
.pill-row { display: flex; flex-wrap: wrap; gap: 6px; }
.pill {
  font-size: 0.75rem;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  border: 0.5px solid var(--color-border);
  color: var(--color-muted);
  background: #f4f3ef;
}
.pill-processus {
  font-size: 0.75rem;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  background: var(--review-bg);
  color: var(--review-color);
  border: 0.5px solid var(--review-border);
}

/* Stratégie pédagogique */
.strategie-box {
  font-size: 0.8125rem;
  color: var(--color-muted);
  background: #f8f7f4;
  border-radius: 8px;
  padding: 0.5rem 0.75rem;
  margin-top: 0.5rem;
  border-left: 3px solid var(--color-border);
  border-radius: 0;
}

/* === Classes mathématiques utilitaires === */
/* Utilisées par MathJax pour le rendu inline ou display */
.math-display {
  display: block;
  text-align: center;
  margin: 0.5rem 0;
  overflow-x: auto;
}
.math-inline { display: inline; }

/* Notation ensembliste */
.math-set    { font-style: italic; }
.math-vec    { font-weight: bold; }

/* Nomenclature UAA */
.uaa-tag {
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 2px 8px;
  border-radius: 4px;
  background: var(--color-bg);
  color: var(--color-muted);
  border: 0.5px solid var(--color-border);
}

/* === Responsive === */
@media (max-width: 600px) {
  .page-header { padding: 1rem; }
  .legend { padding: 0.75rem 1rem; }
  .programme { padding: 1rem 0.5rem 2rem; }
  .day-header { padding: 0.625rem 0.75rem; }
  .day-body { padding: 0 0.75rem 0.75rem; }
}

/* === Section liens UAA dans index.php === */
.uaa-links-section {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}
.uaa-links-title {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-hint);
  margin-bottom: 0.875rem;
}
.uaa-links-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 8px;
}
.uaa-link-card {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 0.625rem 0.875rem;
  background: var(--color-surface);
  border: 0.5px solid var(--color-border);
  border-radius: var(--radius-card);
  text-decoration: none;
  transition: background 0.15s, box-shadow 0.15s;
  box-shadow: var(--shadow-card);
}
.uaa-link-card:hover {
  background: #f4f3ef;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}
.uaa-link-num {
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-hint);
}
.uaa-link-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.3;
}