/* ============================================================
   N33 — Sistema de Diseño
   Tipografía: Rethink Sans (Google Fonts)
   Paleta: Azul institucional (#005d89) y Rojo acento (#f33d5b)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Rethink+Sans:wght@400;500;600;700;800&display=swap');

/* ------------------------------------------------------------
   Variables de tema
   ------------------------------------------------------------ */
:root {
  --font-main: 'Rethink Sans', 'Helvetica Neue', Arial, sans-serif;

  /* N33 Brand Palette */
  --primary:         #005d89;
  --primary-hover:   #004b6f;
  --primary-active:  #003853;
  --primary-light:   rgba(0, 93, 137, 0.1);
  --accent:          #f33d5b;
  --accent-hover:    #d92b49;
  --accent-light:    rgba(243, 61, 91, 0.12);

  /* Tema claro (default) */
  --bg:              #f8fafc;
  --bg-alt:          #f1f5f9;
  --bg-card:         #ffffff;
  --bg-sidebar:      #09111e;
  --text:            #0f172a;
  --text-muted:      #64748b;
  --text-light:      #ffffff;
  --border:          #e2e8f0;
  --border-dark:     #cbd5e1;
  --input-bg:        #ffffff;
  --input-border:    #cbd5e1;
  --shadow:          0 2px 10px rgba(15,23,42,0.06);
  --shadow-md:       0 4px 20px rgba(15,23,42,0.1);
  --sidebar-w:       260px;
  --sidebar-collapsed-w: 72px;
  --topbar-h:        64px;
  --radius:          8px;
  --radius-lg:       12px;
  --transition:      0.2s ease;
}

[data-theme="dark"] {
  /* N33 Dark Mode Brand */
  --primary:         #0284c7;
  --primary-hover:   #38bdf8;
  --primary-active:  #0369a1;
  --primary-light:   rgba(2, 132, 199, 0.18);
  --accent:          #f43f5e;
  --accent-hover:    #fb7185;
  --accent-light:    rgba(244, 63, 94, 0.18);

  --bg:              #080d16;
  --bg-alt:          #0e1726;
  --bg-card:         #111b2b;
  --bg-sidebar:      #05080e;
  --text:            #f1f5f9;
  --text-muted:      #94a3b8;
  --text-light:      #f8fafc;
  --border:          #1e293b;
  --border-dark:     #334155;
  --input-bg:        #0d1522;
  --input-border:    #1e293b;
  --shadow:          0 2px 12px rgba(0,0,0,0.5);
  --shadow-md:       0 4px 24px rgba(0,0,0,0.7);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-main);
  background-color: var(--bg);
  color: var(--text);
  transition: background-color var(--transition), color var(--transition);
  line-height: 1.6;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ------------------------------------------------------------
   Logotipo N33
   ------------------------------------------------------------ */
.brand-logo {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  line-height: 1;
  max-width: 100%;
}
.brand-logo-img {
  height: 40px;
  width: auto;
  max-width: 180px;
  object-fit: contain;
  transition: transform var(--transition), opacity var(--transition);
}
.brand-logo:hover .brand-logo-img {
  opacity: 0.92;
  transform: scale(1.02);
}

.brand-logo-dark {
  color: var(--text);
}
.brand-logo-dark:hover { color: var(--text); opacity: 0.8; }

/* ------------------------------------------------------------
   Layout principal
   ------------------------------------------------------------ */
.app-wrapper {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.app-sidebar {
  width: var(--sidebar-w);
  min-height: 100vh;
  background: var(--bg-sidebar);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1040;
  transition: transform var(--transition), width var(--transition), background var(--transition);
  border-right: 1px solid rgba(255,255,255,0.06);
}

.collapsed-sidebar .app-sidebar,
.preload-collapsed .app-sidebar {
  width: var(--sidebar-collapsed-w) !important;
}

.collapsed-sidebar .app-sidebar .sidebar-text,
.collapsed-sidebar .app-sidebar .sidebar-label,
.collapsed-sidebar .app-sidebar .sidebar-footer div:not(.user-avatar-sm),
.preload-collapsed .app-sidebar .sidebar-text,
.preload-collapsed .app-sidebar .sidebar-label,
.preload-collapsed .app-sidebar .sidebar-footer div:not(.user-avatar-sm) {
  display: none;
}

.collapsed-sidebar .app-sidebar .sidebar-link,
.preload-collapsed .app-sidebar .sidebar-link {
  justify-content: center;
  padding: 12px 0;
  margin: 2px 8px;
}

.collapsed-sidebar .app-sidebar .sidebar-link .bi,
.preload-collapsed .app-sidebar .sidebar-link .bi {
  font-size: 20px;
  margin: 0;
}

.collapsed-sidebar .app-sidebar .sidebar-header,
.preload-collapsed .app-sidebar .sidebar-header {
  padding: 16px 8px;
  justify-content: center;
}

.collapsed-sidebar .app-sidebar .brand-logo-img,
.preload-collapsed .app-sidebar .brand-logo-img {
  height: 28px;
  max-width: 48px;
}

.sidebar-header {
  padding: 20px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  background: rgba(0,0,0,0.15);
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 12px 0;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.15) transparent;
}

.sidebar-nav::-webkit-scrollbar { width: 4px; }
.sidebar-nav::-webkit-scrollbar-track { background: transparent; }
.sidebar-nav::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 2px; }

.sidebar-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.35);
  padding: 16px 20px 8px;
  display: block;
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: all var(--transition);
  border-radius: var(--radius);
  margin: 2px 12px;
  position: relative;
}

.sidebar-link:hover {
  background: rgba(255,255,255,0.06);
  color: #ffffff;
}

.sidebar-link.active {
  background: linear-gradient(90deg, rgba(0, 93, 137, 0.45) 0%, rgba(0, 93, 137, 0.15) 100%);
  color: #ffffff;
  font-weight: 600;
  border: 1px solid rgba(0, 93, 137, 0.4);
}

.sidebar-link.active::before {
  content: '';
  position: absolute;
  left: -12px;
  top: 4px;
  bottom: 4px;
  width: 4px;
  background: var(--accent);
  border-radius: 0 4px 4px 0;
}

.sidebar-link .bi {
  font-size: 16px;
  width: 20px;
  text-align: center;
  flex-shrink: 0;
}

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid rgba(255,255,255,0.08);
  flex-shrink: 0;
}

/* Main content */
.app-main {
  margin-left: var(--sidebar-w);
  width: calc(100% - var(--sidebar-w));
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: margin-left var(--transition), width var(--transition);
}

.collapsed-sidebar .app-main,
.preload-collapsed .app-main {
  margin-left: var(--sidebar-collapsed-w) !important;
  width: calc(100% - var(--sidebar-collapsed-w)) !important;
}

/* Topbar */
.app-topbar {
  height: var(--topbar-h);
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 1030;
  transition: background var(--transition), border-color var(--transition);
  box-shadow: var(--shadow);
}

.topbar-left { display: flex; align-items: center; gap: 16px; }
.topbar-right { display: flex; align-items: center; gap: 8px; }

.topbar-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  margin: 0;
}

/* Page content */
.app-content {
  flex: 1;
  padding: 28px;
  background: var(--bg);
  transition: background var(--transition);
}

/* ------------------------------------------------------------
   Cards
   ------------------------------------------------------------ */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.card:hover { box-shadow: var(--shadow-md); }

.card-header {
  background: transparent;
  border-bottom: 1px solid var(--border);
  padding: 16px 20px;
  font-weight: 700;
  color: var(--text);
  font-size: 14px;
  letter-spacing: 0.3px;
}

.card-body { padding: 20px; }

/* Stat cards del dashboard */
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: all var(--transition);
  cursor: default;
}

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

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
  background: var(--bg-alt);
  border: 1px solid var(--border);
}

.stat-info { flex: 1; min-width: 0; }
.stat-value { font-size: 26px; font-weight: 800; line-height: 1; color: var(--text); }
.stat-label { font-size: 12px; color: var(--text-muted); margin-top: 4px; font-weight: 500; text-transform: uppercase; letter-spacing: 0.5px; }

/* ------------------------------------------------------------
   Tablas
   ------------------------------------------------------------ */
.table {
  color: var(--text);
  border-color: var(--border);
}

.table thead th {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-muted);
  background: var(--bg-alt);
  border-color: var(--border);
  padding: 12px 16px;
}

.table tbody td {
  padding: 12px 16px;
  vertical-align: middle;
  border-color: var(--border);
  color: var(--text);
  background: var(--bg-card);
}

.table tbody tr:hover td { background: var(--bg-alt); }

/* ------------------------------------------------------------
   Formularios
   ------------------------------------------------------------ */
.form-label {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.form-control, .form-select {
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  color: var(--text);
  border-radius: var(--radius);
  padding: 10px 14px;
  font-size: 14px;
  font-family: var(--font-main);
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

.form-control:focus, .form-select:focus {
  background: var(--input-bg);
  border-color: var(--primary);
  color: var(--text);
  box-shadow: 0 0 0 3px var(--primary-light);
  outline: none;
}

[data-theme="dark"] .form-control:focus,
[data-theme="dark"] .form-select:focus {
  box-shadow: 0 0 0 3px var(--primary-light);
}

.form-control::placeholder { color: var(--text-muted); opacity: 0.7; }
.form-control:disabled, .form-select:disabled {
  background: var(--bg-alt);
  opacity: 0.7;
}

textarea.form-control { resize: vertical; min-height: 100px; }

/* ------------------------------------------------------------
   Botones
   ------------------------------------------------------------ */
.btn {
  font-family: var(--font-main);
  font-weight: 600;
  font-size: 13px;
  padding: 9px 18px;
  border-radius: var(--radius);
  transition: all var(--transition);
  letter-spacing: 0.2px;
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--primary);
  border-color: var(--primary);
  color: #ffffff;
}
.btn-primary:hover {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 93, 137, 0.25);
}
.btn-primary:active {
  background: var(--primary-active);
  border-color: var(--primary-active);
  color: #ffffff;
}

.btn-danger {
  background: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
}
.btn-danger:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(243, 61, 91, 0.25);
}

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

.btn-outline-danger {
  background: transparent;
  border-color: var(--accent);
  color: var(--accent);
}
.btn-outline-danger:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 12px;
}

.btn-icon {
  width: 36px;
  height: 36px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
}

/* ------------------------------------------------------------
   Badges de estado
   ------------------------------------------------------------ */
.badge {
  font-family: var(--font-main);
  font-weight: 700;
  font-size: 10px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 20px;
}

/* Custom badges B&N */
.badge-status {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  color: var(--text);
}
.badge-dot { display: inline-flex; align-items: center; gap: 5px; }
.badge-dot::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  flex-shrink: 0;
}

/* ------------------------------------------------------------
   Tema switcher
   ------------------------------------------------------------ */
.theme-toggle {
  background: none;
  border: 1px solid var(--border);
  color: var(--text);
  width: 36px;
  height: 36px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition);
  font-size: 16px;
}

.theme-toggle:hover {
  background: var(--bg-alt);
  border-color: var(--border-dark);
}

/* ------------------------------------------------------------
   Notificaciones (topbar badge)
   ------------------------------------------------------------ */
.notif-btn {
  position: relative;
  background: none;
  border: 1px solid var(--border);
  color: var(--text);
  width: 36px;
  height: 36px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition);
  font-size: 16px;
}

.notif-btn:hover { background: var(--bg-alt); }

.notif-badge {
  position: absolute;
  top: -4px;
  right: -4px;
  background: #000;
  color: #fff;
  border-radius: 50%;
  width: 18px;
  height: 18px;
  font-size: 10px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  border: 2px solid var(--bg);
}

[data-theme="dark"] .notif-badge {
  background: #fff;
  color: #000;
}

/* ------------------------------------------------------------
   Dropdown menú de usuario
   ------------------------------------------------------------ */
.user-menu-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  background: none;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 6px 12px;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  font-family: var(--font-main);
  transition: all var(--transition);
}

.user-menu-btn:hover { background: var(--bg-alt); }

.user-avatar-sm {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--text);
  color: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 800;
  flex-shrink: 0;
}

/* Dropdown de Bootstrap overrides */
.dropdown-menu {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 8px;
  min-width: 200px;
}

.dropdown-item {
  color: var(--text);
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 500;
  padding: 9px 14px;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  gap: 10px;
}

.dropdown-item:hover {
  background: var(--bg-alt);
  color: var(--text);
}

.dropdown-divider { border-color: var(--border); margin: 6px 0; }

/* ------------------------------------------------------------
   Alertas
   ------------------------------------------------------------ */
.alert {
  border-radius: var(--radius);
  border: 1px solid var(--border);
  font-size: 14px;
  padding: 12px 16px;
}

.alert-success { background: rgba(34,197,94,0.08); border-color: rgba(34,197,94,0.3); color: var(--text); }
.alert-danger   { background: rgba(239,68,68,0.08); border-color: rgba(239,68,68,0.3); color: var(--text); }
.alert-warning  { background: rgba(245,158,11,0.08); border-color: rgba(245,158,11,0.3); color: var(--text); }
.alert-info     { background: rgba(59,130,246,0.08); border-color: rgba(59,130,246,0.3); color: var(--text); }

/* ------------------------------------------------------------
   Breadcrumb
   ------------------------------------------------------------ */
.breadcrumb { margin: 0; font-size: 13px; }
.breadcrumb-item { color: var(--text-muted); }
.breadcrumb-item a { color: var(--text-muted); text-decoration: none; }
.breadcrumb-item a:hover { color: var(--text); }
.breadcrumb-item.active { color: var(--text); font-weight: 600; }
.breadcrumb-item + .breadcrumb-item::before { color: var(--border-dark); }

/* ------------------------------------------------------------
   Workflow stepper de estado
   ------------------------------------------------------------ */
.video-status-flow {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
  padding: 16px 0;
}

.status-step {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.3px;
  white-space: nowrap;
}

.status-step .step-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border);
  flex-shrink: 0;
}

.status-step.active .step-dot { background: var(--text); }
.status-step.completed .step-dot { background: var(--text-muted); }
.status-step.active { color: var(--text); }
.status-step:not(.active) { color: var(--text-muted); }

.status-step-arrow { color: var(--border-dark); font-size: 10px; }

/* ------------------------------------------------------------
   Sección de archivos adjuntos
   ------------------------------------------------------------ */
.file-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px,1fr)); gap: 12px; }

.file-card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.file-card:hover { border-color: var(--border-dark); box-shadow: var(--shadow); }
.file-card-icon { font-size: 28px; color: var(--text-muted); text-align: center; }

.file-card-preview {
  width: 100%;
  height: 100px;
  background: var(--bg);
  border-radius: var(--radius-sm);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  position: relative;
  border: 1px solid var(--border);
}

.file-card-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}

.file-card-preview:hover img { transform: scale(1.05); }

.video-preview {
  background: #000;
  color: #fff;
}
.video-preview .bi-play-circle-fill { font-size: 32px; z-index: 2; opacity: 0.8; }
.preview-overlay {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: rgba(0,0,0,0.5);
  color: #fff;
  font-size: 8px;
  font-weight: 800;
  padding: 2px 0;
  text-align: center;
  letter-spacing: 1px;
}

.file-card-name { font-size: 12px; font-weight: 600; color: var(--text); word-break: break-all; text-align: center; margin-top: 4px; }
.file-card-meta { font-size: 11px; color: var(--text-muted); text-align: center; }

/* Audio player custom */
.x-audio-player::-webkit-media-controls-enclosure {
  border-radius: var(--radius-sm);
  background-color: var(--bg-alt);
}

/* ------------------------------------------------------------
   Comentarios
   ------------------------------------------------------------ */
.comment-thread { display: flex; flex-direction: column; gap: 12px; }

.comment-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.comment-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--text);
  color: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 800;
  flex-shrink: 0;
}

.comment-bubble {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 14px;
  flex: 1;
}

.comment-meta { font-size: 11px; color: var(--text-muted); margin-bottom: 4px; }
.comment-meta strong { color: var(--text); }
.comment-body { font-size: 14px; color: var(--text); line-height: 1.5; }

/* ------------------------------------------------------------
   Calendario overrides (FullCalendar)
   ------------------------------------------------------------ */
.fc {
  --fc-border-color: var(--border);
  --fc-button-bg-color: var(--accent);
  --fc-button-border-color: var(--accent);
  --fc-button-hover-bg-color: var(--accent-hover);
  --fc-button-hover-border-color: var(--accent-hover);
  --fc-button-active-bg-color: var(--accent-hover);
  --fc-today-bg-color: rgba(0,0,0,0.04);
  --fc-page-bg-color: var(--bg-card);
  font-family: var(--font-main) !important;
}

[data-theme="dark"] .fc {
  --fc-today-bg-color: rgba(255,255,255,0.04);
}

.fc .fc-toolbar-title { font-size: 16px; font-weight: 800; color: var(--text); }
.fc .fc-col-header-cell-cushion { color: var(--text-muted); font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; }
.fc .fc-daygrid-day-number { color: var(--text); font-size: 13px; }
.fc .fc-event { border-radius: 4px; border: none; font-size: 11px; font-weight: 600; }
.fc-theme-standard .fc-scrollgrid { border-color: var(--border); }
.fc-theme-standard td, .fc-theme-standard th { border-color: var(--border); }
.fc .fc-button { font-family: var(--font-main); font-size: 12px; font-weight: 700; padding: 6px 14px; }

/* ------------------------------------------------------------
   Notificaciones panel
   ------------------------------------------------------------ */
.notif-item {
  display: flex;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  align-items: flex-start;
  transition: background var(--transition);
  text-decoration: none;
  color: inherit;
}

.notif-item:hover { background: var(--bg-alt); }
.notif-item:last-child { border-bottom: none; }

.notif-item.unread { background: var(--bg-alt); }
.notif-item.unread .notif-dot { display: block; }
.notif-dot { display: none; width: 8px; height: 8px; border-radius: 50%; background: var(--text); flex-shrink: 0; margin-top: 5px; }

.notif-content { flex: 1; min-width: 0; }
.notif-title { font-size: 13px; font-weight: 600; color: var(--text); }
.notif-body { font-size: 12px; color: var(--text-muted); margin-top: 2px; }
.notif-time { font-size: 11px; color: var(--text-muted); margin-top: 4px; }

/* ------------------------------------------------------------
   Misc utilidades
   ------------------------------------------------------------ */
.page-title {
  font-size: 22px;
  font-weight: 800;
  color: var(--text);
  margin: 0;
  letter-spacing: -0.3px;
}

.section-title {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 20px 0;
}

.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-muted);
}

.empty-state .bi { font-size: 40px; margin-bottom: 12px; opacity: 0.4; }
.empty-state p { font-size: 14px; margin: 0; }

/* Overlay para sidebar en móvil */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 1035;  /* < Bootstrap modal-backdrop (1050) y modal (1055) */
}

/* Animaciones de entrada */
.fade-in {
  animation: fadeIn 0.3s ease forwards;
}

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

/* Skeleton loader */
.skeleton {
  background: linear-gradient(90deg, var(--bg-alt) 25%, var(--border) 50%, var(--bg-alt) 75%);
  background-size: 200% 100%;
  animation: skeleton 1.5s infinite;
  border-radius: var(--radius);
}

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

/* Toast notifications */
.toast-container { z-index: 9999; }
.toast {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font-main);
  box-shadow: var(--shadow-md);
}

/* ------------------------------------------------------------
   Responsive
   ------------------------------------------------------------ */
@media (max-width: 991.98px) {
  .app-sidebar {
    transform: translateX(-100%);
  }
  .app-sidebar.open {
    transform: translateX(0);
    box-shadow: 4px 0 24px rgba(0,0,0,0.3);
  }
  .sidebar-overlay.visible { display: block; }
  .app-main {
    margin-left: 0;
    width: 100%;
  }
  .app-content { padding: 16px; }
  .file-grid { grid-template-columns: repeat(auto-fill, minmax(140px,1fr)); }
}

@media (max-width: 575.98px) {
  .stat-value { font-size: 22px; }
  .page-title { font-size: 18px; }
  .app-content { padding: 12px; }
  .topbar-title { display: none; }
}

/* ============================================================
   CORRECCIONES DE CONTRASTE — DARK MODE
   Cualquier elemento que use colores fijos de Bootstrap o que
   dependa de --accent (blanco en dark) necesita que su texto
   cambie a --bg (negro) para mantener legibilidad.
   ============================================================ */

/* ------------------------------------------------------------
   Botón primario: en dark mode usa var(--primary) (#0284c7)
   con texto blanco para máxima legibilidad.
   ------------------------------------------------------------ */
[data-theme="dark"] .btn-primary {
  color: #ffffff;
}
[data-theme="dark"] .btn-primary:hover,
[data-theme="dark"] .btn-primary:focus,
[data-theme="dark"] .btn-primary:active {
  color: #ffffff;
}

/* ------------------------------------------------------------
   Botones outline: en dark mode Bootstrap hereda colores
   que no respetan nuestras variables CSS.
   ------------------------------------------------------------ */
[data-theme="dark"] .btn-outline-secondary {
  color: var(--text);
  border-color: var(--border-dark);
}
[data-theme="dark"] .btn-outline-secondary:hover {
  background: var(--bg-alt);
  border-color: var(--text-muted);
  color: var(--text);
}

[data-theme="dark"] .btn-outline-primary {
  color: var(--accent);
  border-color: var(--accent);
}
[data-theme="dark"] .btn-outline-primary:hover {
  background: var(--accent);
  color: var(--bg);        /* texto oscuro al hacer hover */
}

[data-theme="dark"] .btn-outline-danger {
  color: #ff6b6b;
  border-color: #ff6b6b;
}
[data-theme="dark"] .btn-outline-danger:hover {
  background: #ff6b6b;
  color: #000;
}

/* ------------------------------------------------------------
   btn-close (X de alertas y modales): Bootstrap lo pone en
   negro fijo; en dark mode necesita ser claro.
   ------------------------------------------------------------ */
[data-theme="dark"] .btn-close {
  filter: invert(1) grayscale(100%);
}

/* ------------------------------------------------------------
   Modales: Bootstrap pone bg blanco fijo sin CSS vars.
   ------------------------------------------------------------ */
[data-theme="dark"] .modal-content {
  background: var(--bg-card);
  border-color: var(--border);
  color: var(--text);
}
[data-theme="dark"] .modal-header {
  border-bottom-color: var(--border);
}
[data-theme="dark"] .modal-footer {
  border-top-color: var(--border);
}
[data-theme="dark"] .modal-title {
  color: var(--text);
}
[data-theme="dark"] .modal-backdrop {
  background-color: rgba(0,0,0,0.75);
}

/* ------------------------------------------------------------
   Formularios Bootstrap: input, select, textarea
   ------------------------------------------------------------ */
[data-theme="dark"] .form-control,
[data-theme="dark"] .form-select {
  background-color: var(--input-bg);
  border-color: var(--input-border);
  color: var(--text);
}
[data-theme="dark"] .form-control:focus,
[data-theme="dark"] .form-select:focus {
  background-color: var(--input-bg);
  color: var(--text);
}
[data-theme="dark"] .form-control::placeholder {
  color: var(--text-muted);
}
[data-theme="dark"] .form-control:disabled,
[data-theme="dark"] .form-select:disabled {
  background-color: var(--bg-alt);
  color: var(--text-muted);
}
[data-theme="dark"] .form-check-input {
  background-color: var(--input-bg);
  border-color: var(--input-border);
}
[data-theme="dark"] .form-check-input:checked {
  background-color: var(--accent);
  border-color: var(--accent);
}
[data-theme="dark"] .form-text {
  color: var(--text-muted);
}

/* ------------------------------------------------------------
   Badges Bootstrap (bg-dark en dark mode = invisible)
   ------------------------------------------------------------ */
[data-theme="dark"] .badge.bg-dark {
  background-color: var(--border-dark) !important;
  color: var(--text) !important;
}
[data-theme="dark"] .badge.bg-secondary {
  background-color: #444 !important;
  color: #ddd !important;
}
[data-theme="dark"] .badge.bg-light,
[data-theme="dark"] .bg-light {
  background-color: var(--bg-alt) !important;
  color: var(--text) !important;
}

[data-theme="dark"] .bg-white {
  background-color: var(--bg-card) !important;
  color: var(--text) !important;
}
[data-theme="dark"] .badge.bg-success {
  background-color: #1a5c2e !important;
  color: #7dda9a !important;
}
[data-theme="dark"] .badge.bg-danger {
  background-color: #5c1a1a !important;
  color: #f5a0a0 !important;
}
[data-theme="dark"] .badge.bg-warning {
  background-color: #5c4a00 !important;
  color: #ffd966 !important;
}
[data-theme="dark"] .badge.bg-info {
  background-color: #0a3d5c !important;
  color: #7fd4f5 !important;
}
[data-theme="dark"] .badge.bg-primary {
  background-color: var(--bg-alt) !important;
  color: var(--text) !important;
}

/* text-dark junto a bg-warning */
[data-theme="dark"] .badge.text-dark {
  color: var(--text) !important;
}

[data-theme="dark"] .bg-primary-subtle,
[data-theme="dark"] .bg-info-subtle,
[data-theme="dark"] .bg-success-subtle,
[data-theme="dark"] .bg-warning-subtle,
[data-theme="dark"] .bg-danger-subtle {
  background-color: var(--bg-alt) !important;
  color: var(--text) !important;
}

/* ------------------------------------------------------------
   Tablas: Bootstrap pone fondo blanco en thead
   ------------------------------------------------------------ */
[data-theme="dark"] .table {
  color: var(--text);
  border-color: var(--border);
}
[data-theme="dark"] .table > :not(caption) > * > * {
  background-color: transparent;
  color: var(--text);
  border-color: var(--border);
}
[data-theme="dark"] .table thead th {
  background: var(--bg-alt);
  color: var(--text-muted);
}
[data-theme="dark"] .table tbody tr:hover > * {
  background-color: var(--bg-alt);
}

/* ------------------------------------------------------------
   Alertas: en dark mode los fondos semitransparentes
   generan fondos muy oscuros, ajustar texto
   ------------------------------------------------------------ */
[data-theme="dark"] .alert-success {
  background: rgba(29, 91, 49, 0.2);
  border-color: rgba(34,197,94,0.25);
  color: #7dda9a;
}
[data-theme="dark"] .alert-danger {
  background: rgba(91,29,29,0.2);
  border-color: rgba(239,68,68,0.25);
  color: #f5a0a0;
}
[data-theme="dark"] .alert-warning {
  background: rgba(91,74,0,0.2);
  border-color: rgba(245,158,11,0.25);
  color: #ffd966;
}
[data-theme="dark"] .alert-info {
  background: rgba(10,61,92,0.2);
  border-color: rgba(59,130,246,0.25);
  color: #7fd4f5;
}

/* ------------------------------------------------------------
   Dropdown Bootstrap
   ------------------------------------------------------------ */
[data-theme="dark"] .dropdown-menu {
  background: var(--bg-card);
  border-color: var(--border);
}
[data-theme="dark"] .dropdown-item {
  color: var(--text);
}
[data-theme="dark"] .dropdown-item:hover,
[data-theme="dark"] .dropdown-item:focus {
  background: var(--bg-alt);
  color: var(--text);
}
[data-theme="dark"] .dropdown-divider {
  border-color: var(--border);
}

/* ------------------------------------------------------------
   List groups
   ------------------------------------------------------------ */
[data-theme="dark"] .list-group-item {
  background-color: transparent;
  color: var(--text);
  border-color: var(--border);
}
[data-theme="dark"] .list-group-item .text-muted {
  color: var(--text-muted) !important;
}

/* ------------------------------------------------------------
   Pagination Bootstrap
   ------------------------------------------------------------ */
[data-theme="dark"] .page-link {
  background-color: var(--bg-card);
  border-color: var(--border);
  color: var(--text);
}
[data-theme="dark"] .page-link:hover {
  background-color: var(--bg-alt);
  border-color: var(--border-dark);
  color: var(--text);
}
[data-theme="dark"] .page-item.active .page-link {
  background-color: var(--accent);
  border-color: var(--accent);
  color: var(--bg);        /* texto negro sobre fondo claro */
}
[data-theme="dark"] .page-item.disabled .page-link {
  background-color: var(--bg-alt);
  color: var(--text-muted);
}

/* ------------------------------------------------------------
   Nav tabs (en detalle de video)
   ------------------------------------------------------------ */
[data-theme="dark"] .nav-tabs {
  border-color: var(--border);
}
[data-theme="dark"] .nav-tabs .nav-link {
  color: var(--text-muted);
}
[data-theme="dark"] .nav-tabs .nav-link:hover {
  color: var(--text);
  border-color: var(--border);
}
[data-theme="dark"] .nav-tabs .nav-link.active {
  background: var(--bg-card);
  border-color: var(--border);
  border-bottom-color: var(--bg-card);
  color: var(--text);
}

/* ------------------------------------------------------------
   Toast
   ------------------------------------------------------------ */
[data-theme="dark"] .toast-header {
  background: var(--bg-alt);
  color: var(--text);
  border-color: var(--border);
}

/* ------------------------------------------------------------
   FullCalendar dark overrides
   ------------------------------------------------------------ */
[data-theme="dark"] .fc .fc-toolbar-title,
[data-theme="dark"] .fc .fc-daygrid-day-number,
[data-theme="dark"] .fc .fc-col-header-cell-cushion {
  color: var(--text);
}
[data-theme="dark"] .fc-theme-standard .fc-scrollgrid,
[data-theme="dark"] .fc-theme-standard td,
[data-theme="dark"] .fc-theme-standard th {
  border-color: var(--border);
}
[data-theme="dark"] .fc .fc-button {
  color: var(--bg);        /* texto negro en botones del calendario */
}

/* ------------------------------------------------------------
   Inputs de tipo date/time: Safari y Chrome ponen fondo
   blanco aunque hereden el color.
   ------------------------------------------------------------ */
[data-theme="dark"] input[type="date"],
[data-theme="dark"] input[type="time"],
[data-theme="dark"] input[type="datetime-local"] {
  color-scheme: dark;
}

/* ------------------------------------------------------------
   Breadcrumb
   ------------------------------------------------------------ */
[data-theme="dark"] .breadcrumb-item + .breadcrumb-item::before {
  color: var(--text-muted);
}

/* ------------------------------------------------------------
   Card footer
   ------------------------------------------------------------ */
[data-theme="dark"] .card-footer {
  background: transparent;
  border-top-color: var(--border);
}

/* ------------------------------------------------------------
   Links genéricos dentro de tarjetas
   ------------------------------------------------------------ */
[data-theme="dark"] a:not(.btn):not(.sidebar-link):not(.brand-logo):not(.dropdown-item):not(.nav-link):not(.notif-item) {
  color: var(--text);
}
[data-theme="dark"] a:not(.btn):not(.sidebar-link):not(.brand-logo):not(.dropdown-item):not(.nav-link):not(.notif-item):hover {
  color: var(--text-muted);
}

/* ------------------------------------------------------------
   Checkboxes / Radio labels: Bootstrap fija #212529 (negro)
   ignorando el tema oscuro.
   ------------------------------------------------------------ */
[data-theme="dark"] .form-check-label {
  color: var(--text);
}
[data-theme="dark"] .form-label {
  color: var(--text-muted);
}
[data-theme="dark"] label {
  color: var(--text);
}

/* Forzar color de texto en contenedores genéricos en modo oscuro */
[data-theme="dark"] .card-body,
[data-theme="dark"] .card-header,
[data-theme="dark"] .card-footer,
[data-theme="dark"] .list-group-item,
[data-theme="dark"] .p-3,
[data-theme="dark"] .p-4,
[data-theme="dark"] .p-5 {
  color: var(--text) !important;
}

[data-theme="dark"] h1, [data-theme="dark"] h2, [data-theme="dark"] h3, 
[data-theme="dark"] h4, [data-theme="dark"] h5, [data-theme="dark"] h6,
[data-theme="dark"] .h1, [data-theme="dark"] .h2, [data-theme="dark"] .h3, 
[data-theme="dark"] .h4, [data-theme="dark"] .h5, [data-theme="dark"] .h6 {
  color: var(--text) !important;
}

[data-theme="dark"] .text-muted {
  color: var(--text-muted) !important;
}

[data-theme="dark"] dd, [data-theme="dark"] dt {
  color: var(--text) !important;
}

/* ------------------------------------------------------------
   FullCalendar — Iconos y Estilos N33
   ------------------------------------------------------------ */
.fc .fc-icon {
  font-family: 'bootstrap-icons', 'fcicons', sans-serif !important;
  font-style: normal !important;
  font-weight: normal !important;
  line-height: 1 !important;
  display: inline-block !important;
}

.fc .fc-icon-chevron-left::before,
.fc .fc-icon-chevron-left:before {
  content: "\F284" !important; /* Bootstrap Icons: bi-chevron-left */
}

.fc .fc-icon-chevron-right::before,
.fc .fc-icon-chevron-right:before {
  content: "\F285" !important; /* Bootstrap Icons: bi-chevron-right */
}

.fc .fc-icon-chevrons-left::before,
.fc .fc-icon-chevrons-left:before {
  content: "\F280" !important; /* Bootstrap Icons: bi-chevron-double-left */
}

.fc .fc-icon-chevrons-right::before,
.fc .fc-icon-chevrons-right:before {
  content: "\F281" !important; /* Bootstrap Icons: bi-chevron-double-right */
}

.fc .fc-button-primary {
  background-color: var(--primary) !important;
  border-color: var(--primary) !important;
  color: #ffffff !important;
  border-radius: var(--radius) !important;
  font-weight: 600 !important;
  padding: 6px 14px !important;
  transition: all var(--transition) !important;
}

.fc .fc-button-primary:hover {
  background-color: var(--primary-hover) !important;
  border-color: var(--primary-hover) !important;
  color: #ffffff !important;
}

.fc .fc-button-primary:not(:disabled).fc-button-active,
.fc .fc-button-primary:not(:disabled):active {
  background-color: var(--primary-active) !important;
  border-color: var(--primary-active) !important;
  color: #ffffff !important;
}

.fc .fc-button-primary:disabled {
  background-color: var(--bg-alt) !important;
  border-color: var(--border) !important;
  color: var(--text-muted) !important;
}

.fc .fc-toolbar-title {
  font-size: 1.25rem !important;
  font-weight: 700 !important;
  color: var(--text) !important;
}

.fc .fc-col-header-cell {
  background-color: var(--bg-alt) !important;
  color: var(--text) !important;
  font-weight: 700 !important;
  padding: 8px 0 !important;
  border-color: var(--border) !important;
}

.fc td, .fc th {
  border-color: var(--border) !important;
}

[data-theme="dark"] .fc-theme-standard td,
[data-theme="dark"] .fc-theme-standard th {
  border-color: var(--border) !important;
}

[data-theme="dark"] .fc .fc-daygrid-day-number,
[data-theme="dark"] .fc .fc-col-header-cell-cushion {
  color: var(--text) !important;
}