/* ========================================
   SHARED COMPONENTS — Design System
   Canonical patterns extracted from gestio-academica.
   All pages should import this file for consistent
   modals, forms, buttons, and UI components.
   ======================================== */

/* ========================================
   MODAL SYSTEM
   ======================================== */

.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: 1000;
  padding: var(--spacing-md);
  backdrop-filter: blur(4px);
}

.modal-content {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  animation: modalSlideIn 0.25s ease;
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: scale(0.96) translateY(12px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

/* Size variants */
.modal-content.modal-sm  { max-width: 420px; }
.modal-content.modal-lg  { max-width: 600px; }
.modal-content.modal-xl  { max-width: 700px; }

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  background: var(--color-bg-card);
  z-index: 1;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.modal-header h2,
.modal-header h3 {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-text-primary);
  margin: 0;
}

.modal-header h2 .material-symbols-outlined,
.modal-header h3 .material-symbols-outlined {
  font-size: 24px;
  color: var(--color-primary);
}

.modal-close,
.btn-close-modal {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: none;
  background: none;
  color: var(--color-text-secondary);
  cursor: pointer;
  border-radius: 50%;
  transition: background 0.2s;
  flex-shrink: 0;
}

.modal-close:hover,
.btn-close-modal:hover {
  background: var(--color-bg-hover);
}

.modal-close .material-symbols-outlined,
.btn-close-modal .material-symbols-outlined {
  font-size: 24px;
}

.modal-body {
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

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

/* ========================================
   FORM SYSTEM
   ======================================== */

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

.form-group label {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Checkbox label inside form-group: override field-label styles */
.form-group .checkbox-label-inline {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  font-size: var(--font-size-sm);
  text-transform: none;
  letter-spacing: normal;
  color: var(--color-text-primary);
  font-weight: 400;
}
.form-group .checkbox-label-inline input[type="checkbox"] {
  accent-color: var(--color-primary, #007AFF);
  width: 16px;
  height: 16px;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group input[type="number"],
.form-group input[type="date"],
.form-group input[type="time"],
.form-group input[type="password"],
.form-group textarea,
.form-group select {
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg-base);
  color: var(--color-text-primary);
  font-size: var(--font-size-sm);
  font-family: inherit;
  box-sizing: border-box;
  width: 100%;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(19, 117, 188, 0.15);
}

.form-group textarea {
  resize: vertical;
}

.form-row {
  display: flex;
  gap: var(--spacing-md);
}

.form-row .form-group,
.form-row > div {
  flex: 1;
}

.form-group-checkbox label {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
  cursor: pointer;
  text-transform: none;
  letter-spacing: normal;
}

.form-group-checkbox input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--color-primary);
}

/* CM-GUARD: Labels amb checkbox — estil unificat a tota l'app.
   Funciona dins .form-group (override del label uppercase) i fora.
   Dos modes: (1) .check-label classe explícita, (2) :has() automàtic */

/* Mode 1: Classe explícita — usar per checkboxes generats dinàmicament */
.check-label {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm, 8px);
  font-size: var(--font-size-sm);
  text-transform: none;
  letter-spacing: normal;
  color: var(--color-text-primary);
  font-weight: 400;
  cursor: pointer;
  padding: var(--space-1, 4px) 0;
}

.check-label input[type="checkbox"] {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  accent-color: var(--color-primary);
  margin: 0;
}

/* Mode 2: Automàtic — qualsevol label amb checkbox dins form-group */
.form-group label:has(input[type="checkbox"]) {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm, 8px);
  font-size: var(--font-size-sm);
  text-transform: none;
  letter-spacing: normal;
  color: var(--color-text-primary);
  font-weight: 400;
  cursor: pointer;
}

.form-group label:has(input[type="checkbox"]) input[type="checkbox"],
.form-group-checkbox input[type="checkbox"] {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  accent-color: var(--color-primary);
  margin: 0;
}

/* Additional form input classes (calendario/inventario compatibility) */
.form-select,
.form-input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg-base);
  color: var(--color-text-primary);
  font-size: var(--font-size-sm);
}

.form-select:focus,
.form-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(19, 117, 188, 0.15);
}

/* ========================================
   BUTTONS
   ======================================== */

.btn-primary {
  padding: 10px 20px;
  background: var(--color-primary);
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s;
}

.btn-primary:hover {
  background: var(--color-primary-dark);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-secondary {
  padding: 10px 20px;
  background: transparent;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-secondary:hover {
  border-color: var(--color-text-secondary);
}

.btn-danger {
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius-sm);
  background: #FF453A;
  color: #fff;
  font-size: var(--font-size-sm);
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.btn-danger:hover {
  background: #e0342e;
}

.btn-sm {
  padding: 6px 14px;
  font-size: var(--font-size-xs);
}

.btn-icon {
  width: 36px;
  height: 36px;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-surface);
  color: var(--color-text-secondary);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--transition-normal);
}
.btn-icon:hover {
  background: var(--color-bg-hover);
  color: var(--color-text-primary);
}
.btn-icon .material-symbols-outlined {
  font-size: 20px;
}

/* ========================================
   KPI ROW
   ======================================== */

.kpi-row {
  display: flex;
  gap: var(--spacing-md);
}

.kpi-card {
  flex: 1;
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  text-align: center;
  background: var(--color-bg-base);
  border: 1px solid var(--color-border);
}

.kpi-value {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text-primary);
  line-height: 1.2;
}

.kpi-label {
  font-size: 11px;
  color: var(--color-text-tertiary);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  margin-top: 2px;
}

.kpi-card.kpi-blue .kpi-value  { color: #0A84FF; }
.kpi-card.kpi-green .kpi-value { color: #30D158; }
.kpi-card.kpi-orange .kpi-value { color: #FF9F0A; }

/* ========================================
   SEGMENTED CONTROL
   ======================================== */

.segmented-control {
  display: flex;
  gap: 4px;
  padding: 4px;
  background: var(--color-bg-base);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.segment-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 12px;
  border: none;
  border-radius: calc(var(--radius-lg) - 4px);
  background: transparent;
  color: var(--color-text-primary);
  font-size: var(--font-size-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}

.segment-btn:hover {
  background: var(--color-bg-hover);
}

.segment-btn.active {
  background: var(--color-primary);
  color: white;
}

.segment-btn .material-symbols-outlined {
  font-size: 18px;
}

/* ========================================
   EMPTY STATE
   ======================================== */

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 300px;
  gap: var(--spacing-md);
  color: var(--color-text-tertiary);
}

.empty-state .material-symbols-outlined {
  font-size: 56px;
}

.empty-state p {
  font-size: var(--font-size-sm);
  margin: 0;
}

/* ========================================
   SPINNER
   ======================================== */

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 16px;
}

.spinner-small {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

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

/* ========================================
   ALERT
   ======================================== */

.alert {
  padding: 10px 14px;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
}

.alert-danger {
  background: rgba(255, 69, 58, 0.1);
  border: 1px solid rgba(255, 69, 58, 0.3);
  color: #FF453A;
}

.alert-success {
  background: rgba(48, 209, 88, 0.1);
  border: 1px solid rgba(48, 209, 88, 0.3);
  color: #30D158;
}

/* ========================================
   DARK MODE — Shared components
   ======================================== */

@media (prefers-color-scheme: dark) {
  .modal-content {
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
  }

  .modal-header {
    background: var(--color-bg-card);
    border-bottom-color: rgba(255, 255, 255, 0.1);
  }

  .modal-footer {
    border-top-color: rgba(255, 255, 255, 0.1);
  }

  .form-group input[type="text"],
  .form-group input[type="email"],
  .form-group input[type="tel"],
  .form-group input[type="number"],
  .form-group input[type="date"],
  .form-group input[type="time"],
  .form-group input[type="password"],
  .form-group textarea,
  .form-group select,
  .form-select,
  .form-input {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.12);
    color: var(--color-text-primary);
    color-scheme: dark;
  }

  .form-group select option,
  .form-select option {
    background: var(--color-bg-elevated);
    color: var(--color-text-primary);
  }

  .btn-secondary {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.12);
  }

  .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.12);
  }

  .segmented-control {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.1);
  }

  .segment-btn:hover {
    background: rgba(255, 255, 255, 0.06);
  }

  .kpi-card {
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(255, 255, 255, 0.08);
  }

  .alert-danger {
    background: rgba(255, 69, 58, 0.15);
    border-color: rgba(255, 69, 58, 0.35);
  }

  .alert-success {
    background: rgba(48, 209, 88, 0.15);
    border-color: rgba(48, 209, 88, 0.35);
  }
}

/* ========================================
   RESPONSIVE — Shared components
   ======================================== */

@media (max-width: 767px) {
  .modal-content {
    max-height: 95vh;
    margin: var(--spacing-sm);
  }

  .form-row {
    flex-direction: column;
  }

  .kpi-row {
    gap: var(--spacing-sm);
  }

  .kpi-card {
    padding: var(--spacing-sm);
  }

  .kpi-value {
    font-size: 18px;
  }

  .segment-btn span:not(.material-symbols-outlined) {
    display: none;
  }
}

/* Reduce motion */
@media (prefers-reduced-motion: reduce) {
  .modal-content {
    animation: none;
  }

  .spinner,
  .spinner-small {
    animation-duration: 0s;
  }
}

/* ============================================
   PROFESSOR ROLE BADGES (Multi-Professor)
   ============================================ */

.detall-professors-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.detall-professor-entry {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.detall-professor-override {
  font-style: italic;
  opacity: 0.85;
}

.badge-professor {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 10px;
  white-space: nowrap;
}

.badge-professor-titular {
  background: rgba(48, 209, 88, 0.15);
  color: #30D158;
}

.badge-professor-codocent {
  background: rgba(255, 214, 10, 0.15);
  color: #C7A100;
}

.badge-professor-coordinador {
  background: rgba(10, 132, 255, 0.15);
  color: #0A84FF;
}

.badge-professor-adjunt {
  background: rgba(100, 210, 255, 0.15);
  color: #3BA4C8;
}

.badge-professor-substitut {
  background: rgba(142, 142, 147, 0.15);
  color: #8E8E93;
}

@media (prefers-color-scheme: dark) {
  .badge-professor-titular {
    background: rgba(48, 209, 88, 0.2);
    color: #30D158;
  }
  .badge-professor-codocent {
    background: rgba(255, 214, 10, 0.2);
    color: #FFD60A;
  }
  .badge-professor-coordinador {
    background: rgba(10, 132, 255, 0.2);
    color: #0A84FF;
  }
  .badge-professor-adjunt {
    background: rgba(100, 210, 255, 0.2);
    color: #64D2FF;
  }
  .badge-professor-substitut {
    background: rgba(142, 142, 147, 0.2);
    color: #98989D;
  }
}

/* ============================================
   Searchable Select
   ============================================ */

.ss-wrapper {
  position: relative;
  width: 100%;
}

.ss-display {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md, 8px);
  background: var(--color-bg-card);
  cursor: pointer;
  font-size: 14px;
  color: var(--color-text-primary);
  min-height: 38px;
  transition: border-color 0.15s;
}

.ss-display:hover {
  border-color: var(--color-primary);
}

.ss-display:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(var(--color-primary-rgb, 0, 122, 255), 0.2);
}

.ss-display-text.ss-placeholder {
  color: var(--color-text-tertiary);
}

.ss-arrow {
  font-size: 10px;
  color: var(--color-text-tertiary);
  margin-left: 8px;
  flex-shrink: 0;
}

.ss-dropdown {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md, 8px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
  max-height: 280px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.ss-search {
  width: 100%;
  padding: 8px 12px;
  border: none;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-card);
  color: var(--color-text-primary);
  font-size: 14px;
  outline: none;
  box-sizing: border-box;
}

.ss-search::placeholder {
  color: var(--color-text-tertiary);
}

.ss-options {
  overflow-y: auto;
  flex: 1;
}

.ss-option {
  padding: 8px 12px;
  cursor: pointer;
  font-size: 14px;
  color: var(--color-text-primary);
  transition: background 0.1s;
}

.ss-option:hover,
.ss-option.ss-highlighted {
  background: var(--color-bg-hover, rgba(0, 122, 255, 0.08));
}

.ss-option.ss-option-placeholder {
  color: var(--color-text-tertiary);
  font-style: italic;
}

.ss-option.hidden {
  display: none;
}

.ss-no-results {
  padding: 12px;
  text-align: center;
  color: var(--color-text-tertiary);
  font-size: 13px;
}

/* Search input inside checkbox dropdowns (#dropdownProfessor) */
.ss-dropdown-search {
  padding: 6px 8px;
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  background: var(--color-bg-card);
  z-index: 1;
}

.ss-dropdown-search .ss-search {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm, 6px);
  padding: 6px 10px;
  font-size: 13px;
}

/* Hidden utility for filter */
.filter-multiselect-option.hidden {
  display: none;
}

@media (prefers-color-scheme: dark) {
  .ss-dropdown {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  }
}