/* ============================================================
   components.css — Boutons, cartes, modales, formulaires, badges
   Kalamundi — La Plume du Monde
   ============================================================ */

/* ============================================================
   Boutons
   ============================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: 10px var(--spacing-md);
  border-radius: var(--border-radius-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  font-family: inherit;
  cursor: pointer;
  border: 2px solid transparent;
  transition:
    background-color var(--transition-fast),
    color var(--transition-fast),
    border-color var(--transition-fast),
    box-shadow var(--transition-fast),
    transform var(--transition-fast);
  white-space: nowrap;
  text-decoration: none;
  line-height: 1;
}

.btn:active { transform: scale(0.97); }
.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* Variantes */
.btn--primary {
  background-color: var(--color-primary);
  color: var(--text-inverse);
  border-color: var(--color-primary);
}
.btn--primary:hover {
  background-color: var(--color-primary-light);
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-md);
}

.btn--accent {
  background-color: var(--color-accent);
  color: var(--text-primary);
  border-color: var(--color-accent);
}
.btn--accent:hover {
  background-color: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  box-shadow: var(--shadow-md);
}

.btn--outline {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn--outline:hover {
  background-color: var(--color-primary);
  color: var(--text-inverse);
}

.btn--ghost {
  background-color: transparent;
  color: var(--text-secondary);
  border-color: transparent;
}
.btn--ghost:hover {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
}

.btn--danger {
  background-color: var(--color-error);
  color: var(--text-inverse);
  border-color: var(--color-error);
}
.btn--danger:hover {
  opacity: 0.85;
}

/* Tailles */
.btn--sm { padding: 6px var(--spacing-sm); font-size: var(--font-size-xs); }
.btn--lg { padding: 14px var(--spacing-lg); font-size: var(--font-size-md); }
.btn--full { width: 100%; }

/* Loader sur bouton */
.btn--loading {
  pointer-events: none;
  opacity: 0.75;
  position: relative;
}
.btn--loading::after {
  content: '';
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid currentColor;
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  margin-left: var(--spacing-xs);
}

/* ============================================================
   Cartes
   ============================================================ */

.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  transition: box-shadow var(--transition-normal), transform var(--transition-normal);
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card__cover {
  width: 100%;
  aspect-ratio: 2 / 3;
  object-fit: cover;
  background-color: var(--bg-secondary);
}

.card__cover--placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: rgba(255, 255, 255, 0.4);
  font-size: 48px;
}

.card__body {
  padding: var(--spacing-md);
}

.card__genre {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  color: var(--color-accent-dark);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--spacing-xs);
}

.card__title {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card__author {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-sm);
}

.card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--font-size-xs);
  color: var(--text-light);
}

.card__footer {
  padding: var(--spacing-sm) var(--spacing-md);
  border-top: 1px solid var(--border-color);
  display: flex;
  gap: var(--spacing-sm);
}

/* ============================================================
   Badges
   ============================================================ */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: var(--border-radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  line-height: 1.4;
}

.badge--primary  { background-color: var(--bg-secondary); color: var(--color-primary); }
.badge--accent   { background-color: #FFF3CD; color: var(--color-accent-dark); }
.badge--success  { background-color: #D4EDDA; color: var(--color-success); }
.badge--warning  { background-color: #FFF3CD; color: var(--color-warning); }
.badge--error    { background-color: #F8D7DA; color: var(--color-error); }
.badge--fondateur { background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light)); color: var(--text-primary); }
.badge--gratuit  { background-color: var(--bg-secondary); color: var(--color-primary); }
.badge--premium  { background: linear-gradient(90deg, var(--color-accent-dark), var(--color-accent)); color: white; }

/* ============================================================
   Étoiles
   ============================================================ */

.stars {
  display: inline-flex;
  gap: 2px;
  color: var(--color-accent);
  font-size: var(--font-size-sm);
}

.stars__empty { color: var(--border-color); }

/* ============================================================
   Formulaires
   ============================================================ */

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-md);
}

.form-label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text-primary);
}

.form-label--required::after {
  content: ' *';
  color: var(--color-error);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 10px var(--spacing-md);
  border: 1.5px solid var(--border-color);
  border-radius: var(--border-radius-md);
  font-size: var(--font-size-md);
  font-family: inherit;
  color: var(--text-primary);
  background-color: var(--bg-main);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(27, 67, 50, 0.12);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-light);
}

.form-input--error,
.form-textarea--error {
  border-color: var(--color-error);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-hint {
  font-size: var(--font-size-xs);
  color: var(--text-light);
}

.form-error {
  font-size: var(--font-size-xs);
  color: var(--color-error);
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Checkbox et radio custom */
.form-check {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  cursor: pointer;
}

.form-check input[type="checkbox"],
.form-check input[type="radio"] {
  width: 18px;
  height: 18px;
  accent-color: var(--color-primary);
  flex-shrink: 0;
  margin-top: 2px;
}

.form-check__label {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  line-height: var(--line-height-normal);
}

/* Upload zone */
.upload-zone {
  border: 2px dashed var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  text-align: center;
  cursor: pointer;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.upload-zone:hover,
.upload-zone.is-dragover {
  border-color: var(--color-primary);
  background-color: var(--bg-secondary);
}

.upload-zone__icon {
  font-size: 40px;
  margin-bottom: var(--spacing-sm);
}

.upload-zone__text {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

/* ============================================================
   Modales
   ============================================================ */

.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: var(--bg-overlay);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.modal-overlay.is-open {
  opacity: 1;
  pointer-events: auto;
}

.modal {
  background-color: var(--bg-main);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  transform: translateY(16px);
  transition: transform var(--transition-normal);
}

.modal-overlay.is-open .modal {
  transform: translateY(0);
}

.modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--border-color);
}

.modal__title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
}

.modal__close {
  width: 32px;
  height: 32px;
  border-radius: var(--border-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 20px;
  transition: background-color var(--transition-fast);
}

.modal__close:hover {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
}

.modal__body {
  padding: var(--spacing-lg);
}

.modal__footer {
  padding: var(--spacing-md) var(--spacing-lg);
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-sm);
}

/* ============================================================
   Alertes / Toasts
   ============================================================ */

.alert {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  border-radius: var(--border-radius-md);
  font-size: var(--font-size-sm);
  border-left: 4px solid;
}

.alert--success { background-color: #D4EDDA; border-color: var(--color-success); color: #155724; }
.alert--warning { background-color: #FFF3CD; border-color: var(--color-warning); color: #856404; }
.alert--error   { background-color: #F8D7DA; border-color: var(--color-error);   color: #721C24; }
.alert--info    { background-color: #D1ECF1; border-color: var(--color-info);    color: #0C5460; }

.toast-container {
  position: fixed;
  bottom: var(--spacing-lg);
  right: var(--spacing-lg);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  max-width: 360px;
}

.toast {
  background-color: var(--text-primary);
  color: var(--text-inverse);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-lg);
  font-size: var(--font-size-sm);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  animation: slideIn 0.25s ease;
}

.toast--success { background-color: var(--color-success); }
.toast--error   { background-color: var(--color-error); }
.toast--warning { background-color: var(--color-warning); color: var(--text-primary); }

/* ============================================================
   Loader / Spinner
   ============================================================ */

.spinner {
  display: inline-block;
  width: 24px;
  height: 24px;
  border: 3px solid var(--border-color);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

.spinner--sm { width: 16px; height: 16px; border-width: 2px; }
.spinner--lg { width: 40px; height: 40px; border-width: 4px; }

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

/* ============================================================
   Pagination
   ============================================================ */

.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  margin-top: var(--spacing-xl);
}

.pagination__btn {
  min-width: 36px;
  height: 36px;
  padding-inline: var(--spacing-sm);
  border-radius: var(--border-radius-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text-secondary);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.pagination__btn:hover {
  background-color: var(--bg-secondary);
  color: var(--color-primary);
}

.pagination__btn--active {
  background-color: var(--color-primary);
  color: var(--text-inverse);
}

/* ============================================================
   Tabs
   ============================================================ */

.tabs {
  border-bottom: 2px solid var(--border-color);
  display: flex;
  gap: 0;
  overflow-x: auto;
}

.tab {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text-secondary);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  white-space: nowrap;
  cursor: pointer;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.tab:hover { color: var(--color-primary); }
.tab--active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

/* ============================================================
   Search bar
   ============================================================ */

.search-bar {
  display: flex;
  align-items: center;
  background-color: var(--bg-card);
  border: 1.5px solid var(--border-color);
  border-radius: var(--border-radius-full);
  padding: 8px var(--spacing-md);
  gap: var(--spacing-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.search-bar:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(27, 67, 50, 0.12);
}

.search-bar__input {
  flex: 1;
  border: none;
  background: none;
  outline: none;
  font-size: var(--font-size-sm);
  color: var(--text-primary);
}

.search-bar__input::placeholder { color: var(--text-light); }

/* ============================================================
   Avatar
   ============================================================ */

.avatar {
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.avatar--sm  { width: 32px;  height: 32px; }
.avatar--md  { width: 48px;  height: 48px; }
.avatar--lg  { width: 72px;  height: 72px; }
.avatar--xl  { width: 100px; height: 100px; }

.avatar--placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-primary);
  color: var(--text-inverse);
  font-weight: var(--font-weight-bold);
}

/* ============================================================
   Progress bar
   ============================================================ */

.progress {
  width: 100%;
  height: 6px;
  background-color: var(--bg-secondary);
  border-radius: var(--border-radius-full);
  overflow: hidden;
}

.progress__bar {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light));
  border-radius: var(--border-radius-full);
  transition: width var(--transition-slow);
}

/* ============================================================
   Theme switcher
   ============================================================ */

.theme-switcher {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius-full);
  padding: 3px;
}

.theme-switcher__btn {
  width: 28px;
  height: 28px;
  border-radius: var(--border-radius-full);
  border: none;
  background: transparent;
  cursor: pointer;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color var(--transition-fast);
  line-height: 1;
}

.theme-switcher__btn:hover {
  background: rgba(255, 255, 255, 0.2);
}

.theme-switcher__btn.is-active {
  background: rgba(255, 255, 255, 0.9);
}

/* ============================================================
   Animations
   ============================================================ */

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes slideIn {
  from { transform: translateX(20px); opacity: 0; }
  to   { transform: translateX(0);    opacity: 1; }
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.animate-fadeIn { animation: fadeIn 0.3s ease; }

/* ============================================================
   Stat card (dashboard)
   ============================================================ */

.stat-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.stat-card__label {
  font-size: var(--font-size-xs);
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: var(--font-weight-medium);
}

.stat-card__value {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
}

.stat-card__trend {
  font-size: var(--font-size-xs);
  color: var(--color-success);
}

/* ============================================================
   Empty state
   ============================================================ */

.empty-state {
  text-align: center;
  padding: var(--spacing-xl);
  color: var(--text-light);
}

.empty-state__icon {
  font-size: 48px;
  margin-bottom: var(--spacing-md);
}

.empty-state__title {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-sm);
}

.empty-state__text {
  font-size: var(--font-size-sm);
  max-width: 360px;
  margin-inline: auto;
  margin-bottom: var(--spacing-lg);
}