/* ================================================
   Reusable Components
   ================================================
   Shared components used across multiple pages:
   - Cards
   - Alerts & Messages
   - Badges
   - Modals
   - Tooltips
   - Loading states
   ================================================ */

/* ================================================
   Cards
   ================================================ */
.card {
  background-color: var(--color-white, #fff);
  border: 1px solid var(--color-gray-200, #e2e8f0);
  border-radius: var(--radius-lg, 12px);
  padding: 20px;
  margin-bottom: 20px;
  box-shadow: var(--shadow-sm, 0 1px 3px rgba(0, 0, 0, 0.1));
  transition: box-shadow var(--transition-base, 0.2s ease);
}

.card:hover {
  box-shadow: var(--shadow-md, 0 4px 6px rgba(0, 0, 0, 0.1));
}

.card-header {
  background-color: var(--color-primary, #0066cc);
  color: var(--color-white, #fff);
  padding: 15px 20px;
  margin: -20px -20px 20px -20px;
  border-radius: var(--radius-lg, 12px) var(--radius-lg, 12px) 0 0;
}

.card-header h3 {
  margin: 0;
  font-size: var(--font-size-lg, 1.125rem);
  font-weight: var(--font-weight-semibold, 600);
  color: inherit;
}

.card-body {
  padding: 0;
}

.card-footer {
  padding: 15px 0 0;
  margin-top: 15px;
  border-top: 1px solid var(--color-gray-200, #e2e8f0);
  text-align: right;
}

/* ================================================
   Alerts & Messages
   ================================================ */
.alert {
  padding: 12px 20px;
  margin-bottom: 20px;
  border-radius: var(--radius-md, 8px);
  border-left: 4px solid;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.alert i {
  flex-shrink: 0;
  margin-top: 2px;
}

.alert-success {
  background-color: var(--color-success-light, #d4edda);
  color: #155724;
  border-color: var(--color-success, #28a745);
}

.alert-danger,
.alert-error {
  background-color: var(--color-danger-light, #f8d7da);
  color: #721c24;
  border-color: var(--color-danger, #dc3545);
}

.alert-info {
  background-color: var(--color-info-light, #d1ecf1);
  color: #0c5460;
  border-color: var(--color-info, #17a2b8);
}

.alert-warning {
  background-color: var(--color-warning-light, #fff3cd);
  color: #856404;
  border-color: var(--color-warning, #ffc107);
}

/* ================================================
   Badges
   ================================================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  font-size: var(--font-size-xs, 0.75rem);
  font-weight: var(--font-weight-medium, 500);
  border-radius: var(--radius-full, 9999px);
  line-height: 1.4;
}

.badge-primary {
  background-color: var(--color-primary-light, #e8f4fc);
  color: var(--color-primary, #0066cc);
}

.badge-success {
  background-color: var(--color-success-light, #d4edda);
  color: var(--color-success-dark, #1e7e34);
}

.badge-warning {
  background-color: var(--color-warning-light, #fff3cd);
  color: #856404;
}

.badge-danger {
  background-color: var(--color-danger-light, #f8d7da);
  color: var(--color-danger-dark, #bd2130);
}

.badge-info {
  background-color: var(--color-info-light, #d1ecf1);
  color: var(--color-info-dark, #117a8b);
}

.badge-secondary {
  background-color: var(--color-gray-100, #f1f5f9);
  color: var(--color-gray-600, #475569);
}

.badge-light {
  background-color: rgba(255, 255, 255, 0.9);
  color: var(--color-gray-700, #334155);
}

/* Campus Badges */
.badge-calais {
  background-color: var(--campus-calais-light, #fee2e2);
  color: var(--campus-calais, #dc3545);
}

.badge-longuenesse {
  background-color: var(--campus-longuenesse-light, #dbeafe);
  color: var(--campus-longuenesse, #0066cc);
}

.badge-dunkerque {
  background-color: var(--campus-dunkerque-light, #d1fae5);
  color: var(--campus-dunkerque, #28a745);
}

.badge-boulogne {
  background-color: var(--campus-boulogne-light, #e8e0f3);
  color: var(--campus-boulogne, #6f42c1);
}

/* ================================================
   Modals
   ================================================ */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal, 1200);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base, 0.2s ease);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--color-white, #fff);
  border-radius: var(--radius-xl, 16px);
  width: 90%;
  max-width: 500px;
  max-height: 90vh;
  overflow: auto;
  transform: translateY(-20px);
  transition: transform var(--transition-base, 0.2s ease);
  box-shadow: var(--shadow-2xl, 0 25px 50px rgba(0, 0, 0, 0.25));
}

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

.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--color-gray-200, #e2e8f0);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h3 {
  margin: 0;
  font-size: var(--font-size-lg, 1.125rem);
  font-weight: var(--font-weight-semibold, 600);
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--color-gray-400, #94a3b8);
  padding: 0;
  line-height: 1;
  transition: color var(--transition-fast, 0.15s ease);
}

.modal-close:hover {
  color: var(--color-gray-600, #475569);
}

.modal-body {
  padding: 24px;
}

.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--color-gray-200, #e2e8f0);
  display: flex;
  gap: 12px;
  justify-content: flex-end;
}

/* ================================================
   Tooltips
   ================================================ */
[data-tooltip] {
  position: relative;
}

[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  padding: 6px 12px;
  background: var(--color-gray-800, #1e293b);
  color: var(--color-white, #fff);
  font-size: var(--font-size-xs, 0.75rem);
  border-radius: var(--radius-md, 8px);
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast, 0.15s ease);
  z-index: var(--z-tooltip, 1400);
  margin-bottom: 8px;
  pointer-events: none;
}

[data-tooltip]:hover::after {
  opacity: 1;
  visibility: visible;
}

/* ================================================
   Loading States
   ================================================ */
.loading-spinner {
  display: inline-block;
  width: 24px;
  height: 24px;
  border: 3px solid var(--color-gray-200, #e2e8f0);
  border-top-color: var(--color-primary, #0066cc);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.loading-spinner.lg {
  width: 40px;
  height: 40px;
  border-width: 4px;
}

.loading-spinner.sm {
  width: 16px;
  height: 16px;
  border-width: 2px;
}

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

.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-gray-200, #e2e8f0) 25%,
    var(--color-gray-100, #f1f5f9) 50%,
    var(--color-gray-200, #e2e8f0) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-md, 8px);
}

@keyframes shimmer {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* ================================================
   Empty States
   ================================================ */
.empty-state {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  text-align: center;
  padding: 48px 24px;
  color: var(--color-gray-500, #64748b);
}

.empty-state i {
  font-size: 3rem;
  color: var(--color-gray-300, #cbd5e1);
  margin-bottom: 16px;
  display: block;
}

.empty-state h3 {
  color: var(--color-gray-600, #475569);
  margin-bottom: 8px;
  font-size: var(--font-size-lg, 1.125rem);
}

.empty-state p {
  margin-bottom: 16px;
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}

/* Search empty icon variant */
.empty-icon-search {
  background: #fef3c7;
  color: #d97706;
}

/* Hidden utility for forms used by SweetAlert */
.hidden-form {
  display: none !important;
}

/* ================================================
   Dividers
   ================================================ */
.divider {
  height: 1px;
  background: var(--color-gray-200, #e2e8f0);
  margin: 20px 0;
}

.divider-vertical {
  width: 1px;
  height: 100%;
  background: var(--color-gray-200, #e2e8f0);
  margin: 0 16px;
}

.divider-text {
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--color-gray-400, #94a3b8);
  font-size: var(--font-size-sm, 0.875rem);
}

.divider-text::before,
.divider-text::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--color-gray-200, #e2e8f0);
}

/* ================================================
   Avatar
   ================================================ */
.avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-weight-semibold, 600);
  font-size: var(--font-size-sm, 0.875rem);
  background: linear-gradient(
    135deg,
    var(--color-primary, #0066cc),
    var(--color-secondary, #4cc9f0)
  );
  color: var(--color-white, #fff);
  flex-shrink: 0;
}

.avatar.sm {
  width: 32px;
  height: 32px;
  font-size: var(--font-size-xs, 0.75rem);
}

.avatar.lg {
  width: 56px;
  height: 56px;
  font-size: var(--font-size-lg, 1.125rem);
}

.avatar.xl {
  width: 80px;
  height: 80px;
  font-size: var(--font-size-2xl, 1.5rem);
}

.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}

/* ================================================
   Progress Bar
   ================================================ */
.progress {
  width: 100%;
  height: 8px;
  background: var(--color-gray-200, #e2e8f0);
  border-radius: var(--radius-full, 9999px);
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: linear-gradient(
    90deg,
    var(--color-primary, #0066cc),
    var(--color-secondary, #4cc9f0)
  );
  border-radius: var(--radius-full, 9999px);
  transition: width var(--transition-slow, 0.3s ease);
}

.progress-bar.success {
  background: var(--color-success, #28a745);
}

.progress-bar.warning {
  background: var(--color-warning, #ffc107);
}

.progress-bar.danger {
  background: var(--color-danger, #dc3545);
}

/* ================================================
   Tabs
   ================================================ */
.tabs {
  display: flex;
  border-bottom: 2px solid var(--color-gray-200, #e2e8f0);
  gap: 4px;
}

.tab {
  padding: 12px 20px;
  font-weight: var(--font-weight-medium, 500);
  color: var(--color-gray-500, #64748b);
  background: none;
  border: none;
  cursor: pointer;
  position: relative;
  transition: all var(--transition-fast, 0.15s ease);
}

.tab:hover {
  color: var(--color-primary, #0066cc);
}

.tab.active {
  color: var(--color-primary, #0066cc);
}

.tab.active::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-primary, #0066cc);
}

.tab-content {
  display: none;
  padding: 20px 0;
}

.tab-content.active {
  display: block;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
  .modal-content {
    width: 95%;
    max-width: 100%;
    margin: 10px;
  }

  .card {
    margin: 0 -5px;
    border-radius: 8px;
  }

  .tabs {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    white-space: nowrap;
    flex-wrap: nowrap;
  }

  .tooltip {
    max-width: 250px;
    font-size: 0.8rem;
  }
}

@media (max-width: 480px) {
  .modal-overlay,
  .modal-backdrop {
    padding: 5px;
  }

  .modal-content {
    width: 100%;
    border-radius: 12px 12px 0 0;
    max-height: 90vh;
  }

  .badge {
    font-size: 0.7rem;
    padding: 2px 6px;
  }

  .card-body {
    padding: 15px;
  }
}