/* Variables CSS */
:root {
  /* Couleurs primaires */
  --color-primary: #2563eb;
  --color-primary-light: #3b82f6;
  --color-primary-dark: #1d4ed8;
  --color-primary-bg: #eef2ff;
  --color-primary-bg-hover: #e0e7ff;
  --color-primary-bg-light: #eff6ff;
  --color-primary-bg-drop: #dbeafe;
  --color-primary-bg-drop-dark: #bfdbfe;
  --color-primary-border-light: #c7d2fe;

  /* Couleurs de fond */
  --color-bg: #f5f7fb;
  --color-bg-subtle: #f3f4f6;
  --color-bg-tooltip: rgba(15, 23, 42, 0.85);
  --color-surface: #fff;
  --color-hover: #f9fafb;
  --overlay-dark: rgba(0, 0, 0, 0.5);

  /* Bordures */
  --color-border: #e5e7eb;
  --color-border-input: #d1d5db;

  /* Texte */
  --color-text: #111827;
  --color-text-muted: #6b7280;
  --color-text-secondary: #4b5563;

  /* États */
  --color-success: #16a34a;
  --color-warning: #b45309;
  --color-danger: #b91c1c;

  /* Poignées */
  --color-handle: rgba(15, 23, 42, 0.4);
  --color-handle-hover: rgba(15, 23, 42, 0.8);

  /* Rayons de bordure */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 12px;
  --radius-full: 999px;

  /* Ombres */
  --shadow-sm: 0 2px 4px rgba(15, 23, 42, 0.25);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 6px 16px rgba(15, 23, 42, 0.5);

  /* Transitions */
  --transition-fast: 0.08s ease;
  --transition-normal: 0.15s ease;
  --transition-hover: background 0.1s ease, transform var(--transition-fast), box-shadow 0.1s ease;
}

/* Reset léger */
*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
}

/* Accessibilité - Texte pour lecteurs d'écran uniquement */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Classes utilitaires */
.flex-col {
  display: flex;
  flex-direction: column;
}

.flex-row {
  display: flex;
  align-items: center;
}

.gap-sm { gap: 0.25rem; }
.gap-md { gap: 0.5rem; }

.font-sm { font-size: 0.75rem; }
.font-md { font-size: 0.85rem; }

.hover-lift {
  transition: transform var(--transition-fast);
}

.hover-lift:hover {
  transform: translateY(-1px);
}

/* Header */
.app-header {
  padding: 1rem 2rem;
  background: linear-gradient(120deg, var(--color-primary-dark), var(--color-primary-light));
  color: #fff;
  box-shadow: 0 2px 6px rgba(15, 23, 42, 0.4);
}

.app-header h1 {
  margin: 0 0 0.25rem;
  font-size: 1.6rem;
}

.app-header p {
  margin: 0;
  font-size: 0.9rem;
  opacity: 0.95;
}

/* Layout principal */
.layout {
  display: grid;
  grid-template-columns: minmax(260px, 320px) minmax(0, 1fr);
  gap: 1rem;
  padding: 1rem 2rem 2rem;
}

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

/* Cartes et utilitaires */
.card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 0.75rem 1rem;
  box-shadow: var(--shadow-md);
}

.card h2 {
  margin: 0 0 0.35rem;
  font-size: 1.1rem;
}

.hint {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* Niveaux */
.levels {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.6rem;
}

.level-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  background: var(--color-hover);
  font-size: 0.85rem;
  cursor: pointer;
  transition: var(--transition-hover), border-color var(--transition-normal);
}

.level-pill input {
  accent-color: var(--color-primary);
}

.level-pill:hover {
  background: var(--color-primary-bg);
  border-color: var(--color-primary-border-light);
  transform: translateY(-1px);
}

/* Séances : domaines + cartes */
.session-list {
  margin-top: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  max-height: 420px;
  overflow-y: auto;
  padding-right: 0.25rem;
}

/* Domaines (accordéon) */
.domain-group {
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-hover);
  margin-top: 0.5rem;
}

.domain-header {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.35rem 0.55rem;
  border: none;
  background: var(--color-primary-bg);
  cursor: pointer;
  font-size: 0.85rem;
}

.domain-header:hover {
  background: var(--color-primary-bg-hover);
}

.domain-name {
  font-weight: 600;
}

.domain-toggle {
  font-size: 0.9rem;
  transition: transform var(--transition-normal);
}

/* replié par défaut */
.domain-group.collapsed .domain-body {
  display: none;
}

.domain-group.collapsed .domain-toggle {
  transform: rotate(-90deg);
}

.domain-body {
  padding: 0.35rem 0.45rem 0.45rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  max-height: 200px;
  overflow-y: auto;
}

/* Cartes séances */
.session-card {
  border-radius: var(--radius-md);
  padding: 0.4rem 0.6rem;
  border: 1px solid var(--color-border);
  background: var(--color-hover);
  cursor: pointer;
  font-size: 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  transition: box-shadow 0.12s ease, transform var(--transition-fast),
    background 0.12s ease, border-color 0.12s ease, opacity 0.12s ease;
}

.session-card-header {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.session-card-title {
  font-weight: 600;
  flex: 1;
}

.session-check {
  font-size: 0.9rem;
  color: var(--color-success);
  opacity: 0;
}

/* Grouper les tailles de police similaires */
.session-card-domain,
.session-card-levels,
.session-card-duration,
.session-reco,
.session-progress,
.session-color-row label {
  font-size: 0.76rem;
  color: var(--color-text-secondary);
}

.session-card-domain {
  color: var(--color-text-muted);
}

.session-card.selected {
  border-color: var(--color-primary);
  background: var(--color-primary-bg-light);
  box-shadow: 0 0 0 1px #2563eb33, 0 4px 8px rgba(37, 99, 235, 0.25);
  transform: translateY(-1px);
}

.session-card.dragging {
  opacity: 0.5;
  cursor: grabbing;
}

.session-card.completed {
  opacity: 0.6;
}

.session-card.completed .session-check {
  opacity: 1;
}

/* sélecteur de couleur */
.session-color-row {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.session-color-input {
  width: 24px;
  height: 18px;
  padding: 0;
  border: 1px solid var(--color-border-input);
  border-radius: 4px;
}

/* Durée + bouton supprimer */
.duration-control {
  margin-top: 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.duration-control label {
  font-size: 0.85rem;
  font-weight: 500;
}

#durationInput {
  width: 110px;
  padding: 0.3rem 0.4rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border-input);
  font-size: 0.9rem;
}

#durationInput:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 1px;
  border-color: transparent;
}

/* Boutons */
.btn-secondary {
  border: 1px solid var(--color-border-input);
  background: var(--color-hover);
  padding: 0.3rem 0.8rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  cursor: pointer;
  transition: background 0.1s ease, transform var(--transition-fast), box-shadow 0.1s ease;
}

.btn-secondary:hover {
  background: var(--color-border);
  transform: translateY(-1px);
  box-shadow: 0 2px 4px rgba(148, 163, 184, 0.5);
}

.btn-small {
  padding: 0.2rem 0.6rem;
  font-size: 0.78rem;
}

.placement-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.placement-actions button {
  flex: 1;
}

/* Emploi du temps (axe continu) */
.timetable-card {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.timetable-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
}

.timetable-controls {
  display: flex;
  gap: 0.5rem;
}

.timetable-wrapper {
  margin-top: 0.3rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-hover);
  overflow: auto;
  max-height: 650px;
}

.timetable-flex {
  display: flex;
  align-items: stretch;
  min-width: 720px;
}

/* Axe des heures */
.time-axis {
  flex: 0 0 60px;
  border-right: 1px solid var(--color-border);
  position: relative;
  padding-top: 20px;
  background: var(--color-hover);
}

.time-label {
  position: absolute;
  left: 4px;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  transform: translateY(-50%);
}

.time-line {
  position: absolute;
  right: 0;
  left: 0;
  height: 1px;
  background: var(--color-border);
}

/* Colonnes de jours */
.days-container {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
}

.day-column {
  border-left: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
}

.day-header {
  text-align: center;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.3rem 0.2rem;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-subtle);
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.3rem;
  position: relative;
}

.day-name {
  flex: 1;
}

.day-copy-btn {
  padding: 0.15rem 0.3rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.85rem;
  transition: background var(--transition-fast), transform var(--transition-fast);
  opacity: 0.7;
}

.day-copy-btn:hover {
  background: var(--color-primary);
  color: white;
  transform: scale(1.1);
  opacity: 1;
}


.day-body {
  position: relative;
  flex: 1;
  cursor: crosshair;
  background: repeating-linear-gradient(
    to bottom,
    var(--color-hover),
    var(--color-hover) 14px,
    var(--color-primary-bg) 15px
  );
}

.day-body.drop-zone-active {
  background: repeating-linear-gradient(
    to bottom,
    var(--color-primary-bg-drop),
    var(--color-primary-bg-drop) 14px,
    var(--color-primary-bg-drop-dark) 15px
  );
  box-shadow: inset 0 0 0 2px var(--color-primary);
}

/* Étiquette d'heure au survol */
.hover-time {
  position: absolute;
  right: 4px;
  transform: translateY(-50%);
  background: var(--color-bg-tooltip);
  color: #fff;
  padding: 0 4px;
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  pointer-events: none;
  white-space: nowrap;
}

/* Bloc de séance */
.event-block {
  position: absolute;
  left: 4px;
  right: 4px;
  border-radius: var(--radius-sm);
  padding: 2px 10px 2px 6px;
  font-size: 0.75rem;
  line-height: 1.2;
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-sizing: border-box;
  cursor: grab;
}

.event-block.selected {
  outline: 2px solid var(--color-primary-dark);
  outline-offset: 0;
}

.event-block.dragging {
  opacity: 0.85;
  box-shadow: var(--shadow-lg);
}

.event-label {
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex-shrink: 0;
}

.event-time {
  font-size: 0.7rem;
  color: var(--color-text);
  flex-shrink: 1;
}

/* Poignée de redimensionnement sur le côté droit */
.resize-handle {
  position: absolute;
  top: 2px;
  bottom: 2px;
  right: 2px;
  width: 6px;
  background: var(--color-handle);
  border-radius: 4px;
  cursor: ns-resize;
}

.event-block:hover .resize-handle {
  background: var(--color-handle-hover);
}

/* Récap par domaine */
.domain-summary-card {
  margin-top: 0.75rem;
  padding-top: 0.5rem;
  border-top: 1px solid #e5e7eb;
}

.domain-summary-card h3 {
  margin: 0 0 0.25rem;
  font-size: 0.95rem;
}

.domain-summary-container {
  margin-top: 0.25rem;
  overflow-x: auto;
}

.domain-summary-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8rem;
}

.domain-summary-table th,
.domain-summary-table td {
  border: 1px solid var(--color-border);
  padding: 0.25rem 0.4rem;
  text-align: left;
  white-space: nowrap;
}

.domain-summary-table th {
  background: var(--color-bg-subtle);
  font-weight: 600;
}

.domain-summary-ok,
.domain-summary-low,
.domain-summary-high {
  font-weight: 600;
}

.domain-summary-ok {
  color: var(--color-success);
}

.domain-summary-low {
  color: var(--color-warning);
}

.domain-summary-high {
  color: var(--color-danger);
}

/* Impression : paysage, seulement l'emploi du temps */
@media print {
  @page {
    size: A4 landscape;
    margin: 10mm;
  }

  body {
    background: #fff;
  }

  .app-header,
  .side-panel,
  .timetable-header-row,
  .timetable-card > p.hint {
    display: none !important;
  }

  .layout {
    padding: 0;
  }

  .timetable-panel {
    grid-column: 1 / -1;
  }

  .card {
    box-shadow: none;
    border-radius: 0;
  }

  .timetable-wrapper {
    max-height: none;
    border: none;
  }
}

.modal {
  position: fixed;
  inset: 0;
  background: var(--overlay-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.modal.hidden {
  display: none;
}

.modal-content {
  background: var(--color-surface);
  padding: 20px;
  border-radius: var(--radius-md);
  width: 300px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

.modal-buttons {
  margin-top: 12px;
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

/* Modal de copie de journée */
.copy-day-targets {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin: 1rem 0;
}

.copy-day-target-btn {
  padding: 0.6rem 1rem;
  background: var(--color-hover);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all var(--transition-normal);
  text-align: left;
}

.copy-day-target-btn:hover {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
  transform: translateX(4px);
}

.copy-day-target-btn:active {
  transform: translateX(2px);
}