/* glass.css — Liquid Glass / Glassmorphism
   Utilities sobre los tokens de obsidian.css.
   Importar DESPUÉS de obsidian.css.

   Soporte: backdrop-filter es soportado en todos los browsers evergreen 2024+.
   Fallback automático para Firefox antiguo: bg-strong (sin blur).
*/

/* ─── Base glass ─────────────────────────────────────────────────────────── */
.glass {
  background: var(--glass-bg);
  backdrop-filter: var(--blur-md);
  -webkit-backdrop-filter: var(--blur-md);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--glass-shadow);
}

.glass-strong {
  background: var(--glass-bg-strong);
  backdrop-filter: var(--blur-lg);
  -webkit-backdrop-filter: var(--blur-lg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--glass-shadow);
}

/* ─── Card ───────────────────────────────────────────────────────────────── */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: var(--blur-md);
  -webkit-backdrop-filter: var(--blur-md);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--glass-shadow);
  padding: var(--sp-6);
  transition: transform var(--tx-base), box-shadow var(--tx-base), border-color var(--tx-base);
}
.glass-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
}

/* Card component: h3 no hereda el tamaño global (1.5rem) — demasiado grande */
.glass-card-header h3 {
  font-size: var(--fs-base);
  font-weight: var(--fw-semi);
  margin: 0 0 var(--sp-1);
  line-height: var(--lh-tight);
}
.glass-card-header p {
  font-size: var(--fs-sm);
  margin: 0;
  color: var(--text-secondary);
}

/* ─── Nav ────────────────────────────────────────────────────────────────── */
.glass-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--glass-bg-strong);
  backdrop-filter: var(--blur-lg);
  -webkit-backdrop-filter: var(--blur-lg);
  border-bottom: 1px solid var(--glass-border);
  padding: 0 var(--sp-6);
  height: 54px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
}

/* ── Brand / logo ── */
.glass-nav .brand {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  flex-shrink: 0;
  text-decoration: none;
}
.glass-nav .brand-logo {
  height: 32px;
  width: auto;
  max-width: 160px;
  object-fit: contain;
  display: block;
}
.glass-nav .brand-text {
  font-weight: var(--fw-semi);
  font-size: var(--fs-lg);
  color: var(--text-primary);
  white-space: nowrap;
}
.glass-nav .brand-accent { color: var(--accent); }
.glass-nav .brand-student-badge {
  font-size: 10px;
  font-weight: var(--fw-semi);
  color: var(--color-warning);
  background: rgba(245,166,35,0.12);
  border: 1px solid rgba(245,166,35,0.3);
  border-radius: var(--radius-full);
  padding: 2px 7px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* ── Nav icon links ── */
.glass-nav .nav-links {
  display: flex;
  gap: var(--sp-1);
  list-style: none;
  margin: 0;
  padding: 0;
}

.glass-nav .nav-actions {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
}

/* Ícono-link a /Search: solo existe en mobile, donde el form de búsqueda
   del nav se oculta por espacio (ver media query 640px). */
.glass-nav .nav-search-link { display: none; }

.glass-nav .nav-links a {
  width: 38px;
  height: 38px;
  padding: 0;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  text-decoration: none;
  transition: background var(--tx-fast), color var(--tx-fast);
  position: relative;
}
.glass-nav .nav-links a:hover {
  background: var(--glass-bg);
  color: var(--text-primary);
}
.glass-nav .nav-links a.active {
  background: rgba(245,166,35,0.12);
  color: var(--accent);
}
.glass-nav .nav-links a.active svg {
  stroke-width: 2.5;
}

/* Tooltip */
.glass-nav .nav-links a[data-tip]::after {
  content: attr(data-tip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: rgba(20,20,20,0.95);
  color: var(--text-primary);
  padding: 4px 10px;
  border-radius: var(--radius-md);
  font-size: 11px;
  font-weight: var(--fw-medium);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity 120ms;
  border: 1px solid var(--glass-border);
  z-index: 200;
}
.glass-nav .nav-links a[data-tip]:hover::after {
  opacity: 1;
}

/* ─── Nav User Avatar + Dropdown ────────────────────────────────────────── */
.nav-user { position: relative; }

.nav-avatar {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  padding: var(--sp-1) var(--sp-3) var(--sp-1) var(--sp-1);
  cursor: pointer;
  color: var(--text-primary);
  transition: background var(--tx-fast), border-color var(--tx-fast);
  white-space: nowrap;
  font: inherit;
}
.nav-avatar:hover {
  background: var(--glass-bg-strong);
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(245, 166, 35, 0.15);
}

.nav-avatar-circle {
  width: 30px;
  height: 30px;
  border-radius: var(--radius-full);
  background: var(--accent);
  color: var(--accent-text);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
  flex-shrink: 0;
  letter-spacing: 0.5px;
}

.nav-avatar-name {
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
}

.nav-avatar-caret {
  font-size: 10px;
  opacity: 0.5;
  transition: transform var(--tx-fast);
}
.nav-user.open .nav-avatar-caret { transform: rotate(180deg); }
.nav-user.open .nav-avatar {
  border-color: var(--accent);
  background: var(--glass-bg-strong);
  box-shadow: 0 0 0 3px rgba(245, 166, 35, 0.2);
}

.nav-dropdown {
  position: absolute;
  right: 0;
  top: calc(100% + var(--sp-2));
  min-width: 230px;
  background: rgba(28, 28, 28, 0.94);
  backdrop-filter: var(--blur-lg);
  -webkit-backdrop-filter: var(--blur-lg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--glass-shadow), 0 0 0 1px rgba(245, 166, 35, 0.08);
  z-index: 200;
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity var(--tx-base), visibility var(--tx-base), transform var(--tx-base);
  pointer-events: none;
}
.nav-user.open .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}

:root[data-theme="light"] .nav-dropdown,
:root[data-theme="light"] .novelty-dropdown {
  background: rgba(250, 250, 250, 0.96);
}

.nav-dropdown-header {
  padding: var(--sp-3) var(--sp-4);
  border-bottom: 1px solid var(--glass-border);
  display: flex;
  flex-direction: column;
  gap: var(--sp-1);
}

.nav-dropdown-role {
  font-size: var(--fs-xs);
  color: var(--accent);
  font-weight: var(--fw-medium);
}

.nav-dropdown-sep {
  height: 1px;
  background: var(--glass-border);
  margin: var(--sp-1) 0;
}

.nav-dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  width: 100%;
  padding: var(--sp-2) var(--sp-4);
  font: inherit;
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  text-decoration: none;
  transition: background var(--tx-fast), color var(--tx-fast);
}
.nav-dropdown-item:hover {
  background: rgba(245, 166, 35, 0.07);
  color: var(--text-primary);
}
.nav-dropdown form { display: block; }

.nav-dropdown-item-danger { color: var(--color-danger); }
.nav-dropdown-item-danger:hover { background: rgba(248, 113, 113, 0.1); color: var(--color-danger); }

/* Toggle de tema: ícono de luna en modo oscuro, sol en modo claro */
.theme-icon-sun { display: none; }
:root[data-theme="light"] .theme-icon-moon { display: none; }
:root[data-theme="light"] .theme-icon-sun { display: inline-flex; }

/* ─── Buttons ────────────────────────────────────────────────────────────── */
.glass-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  padding: var(--sp-2) var(--sp-4);
  font: inherit;
  font-weight: var(--fw-medium);
  font-size: var(--fs-base);
  line-height: 1;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  user-select: none;
  text-decoration: none;
  background: var(--glass-bg);
  backdrop-filter: var(--blur-sm);
  -webkit-backdrop-filter: var(--blur-sm);
  color: var(--text-primary);
  transition: background var(--tx-fast), border-color var(--tx-fast),
              color var(--tx-fast), transform var(--tx-fast);
}
.glass-btn:hover { background: var(--glass-bg-strong); border-color: var(--accent); }
.glass-btn:active { transform: translateY(1px); }
.glass-btn:disabled,
.glass-btn[disabled] { opacity: 0.5; cursor: not-allowed; pointer-events: none; }

.glass-btn-primary {
  background: var(--accent);
  color: var(--accent-text);
  border-color: transparent;
}
.glass-btn-primary:hover  { background: var(--accent-hover);   border-color: transparent; }
.glass-btn-primary:active { background: var(--accent-pressed);  transform: translateY(1px); }

.glass-btn-danger {
  background: var(--danger);
  color: var(--accent-text);
  border-color: transparent;
}
.glass-btn-danger:hover { background: #c82333; color: #fff; border-color: transparent; }

/* ─── Inputs ─────────────────────────────────────────────────────────────── */
.glass-input,
.form-control {
  width: 100%;
  padding: var(--sp-3) var(--sp-4);
  font: inherit;
  font-size: var(--fs-base);
  color: var(--text-primary);
  background: var(--glass-bg);
  backdrop-filter: var(--blur-sm);
  -webkit-backdrop-filter: var(--blur-sm);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  transition: border-color var(--tx-fast), background var(--tx-fast),
              box-shadow var(--tx-fast);
}
.glass-input::placeholder,
.form-control::placeholder {
  color: var(--text-muted);
}
.glass-input:focus,
.form-control:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--glass-bg-strong);
  box-shadow: 0 0 0 3px var(--glass-tint);
}

/* ─── Select — custom arrow + option theming ─────────────────────────────── */
select.glass-input,
select.form-control {
  appearance: none;
  -webkit-appearance: none;
  padding-right: var(--sp-10);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23f5a623' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--sp-3) center;
  cursor: pointer;
  color-scheme: dark;
}

select.glass-input option,
select.form-control option {
  background-color: #252525;
  color: #dcddde;
  padding: var(--sp-2) var(--sp-3);
}

select.glass-input option:checked,
select.form-control option:checked {
  background-color: #2a2a2a;
  color: #f5a623;
}

:root[data-theme="light"] select.glass-input,
:root[data-theme="light"] select.form-control {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23c8840f' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  color-scheme: light;
}

:root[data-theme="light"] select.glass-input option,
:root[data-theme="light"] select.form-control option {
  background-color: #f6f6f6;
  color: #222222;
}

:root[data-theme="light"] select.glass-input option:checked,
:root[data-theme="light"] select.form-control option:checked {
  background-color: #ffffff;
  color: #c8840f;
}

.form-label {
  display: block;
  margin-bottom: var(--sp-2);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--text-secondary);
}

.field-validation-error,
.text-danger {
  display: block;
  margin-top: var(--sp-1);
  font-size: var(--fs-sm);
  color: var(--danger);
}

/* ─── Tablas glass ───────────────────────────────────────────────────────── */
.glass-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  background: var(--glass-bg);
  backdrop-filter: var(--blur-sm);
  -webkit-backdrop-filter: var(--blur-sm);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.glass-table th,
.glass-table td {
  padding: var(--sp-3) var(--sp-4);
  text-align: left;
  border-bottom: 1px solid var(--glass-border);
}
.glass-table th {
  font-weight: var(--fw-semi);
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  background: var(--glass-bg-strong);
}
.glass-table tbody tr:hover {
  background: var(--glass-bg-strong);
}
.glass-table tr:last-child td { border-bottom: none; }

/* ─── Modal / Overlay ────────────────────────────────────────────────────── */
.glass-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg-overlay);
  backdrop-filter: var(--blur-sm);
  -webkit-backdrop-filter: var(--blur-sm);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--sp-4);
}

.glass-modal {
  max-width: 540px;
  width: 100%;
  background: var(--glass-bg-strong);
  backdrop-filter: var(--blur-lg);
  -webkit-backdrop-filter: var(--blur-lg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  padding: var(--sp-6);
}

/* ─── Alerts ─────────────────────────────────────────────────────────────── */
.alert {
  padding: var(--sp-3) var(--sp-4);
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  backdrop-filter: var(--blur-sm);
  -webkit-backdrop-filter: var(--blur-sm);
  margin-bottom: var(--sp-4);
}
.alert-success { border-color: var(--success); }
.alert-warning { border-color: var(--warning); }
.alert-danger  { border-color: var(--danger);  }
.alert-info    { border-color: var(--info);    }

/* ─── Admin sidebar layout ───────────────────────────────────────────────── */
.admin-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  min-height: calc(100vh - 57px);
  align-items: start;
}

.admin-sidebar {
  position: sticky;
  top: 57px;
  height: calc(100vh - 57px);
  overflow-y: auto;
  border-right: 1px solid var(--glass-border);
  background: var(--glass-bg);
  backdrop-filter: var(--blur-sm);
  -webkit-backdrop-filter: var(--blur-sm);
  padding: var(--sp-5) var(--sp-3);
  scrollbar-width: thin;
  scrollbar-color: var(--border-subtle) transparent;
}

.admin-main {
  padding: var(--sp-6) var(--sp-8);
  min-width: 0;
  max-width: 1200px;
}

.admin-main h1:not(.cert-title),
.settings-area-main h1:not(.cert-title),
main.container h1:not(.cert-title):not(.markdown-body h1) {
  font-size: 1.75rem !important;
  line-height: 1.15 !important;
}

.admin-nav-group {
  margin-bottom: var(--sp-5);
}

.admin-nav-group-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--text-muted);
  font-weight: var(--fw-semi);
  padding: var(--sp-1) var(--sp-3);
  margin-bottom: var(--sp-1);
  opacity: .7;
}

.admin-nav-item {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-2) var(--sp-3);
  border-radius: var(--radius-md);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--tx-fast), background var(--tx-fast);
  white-space: nowrap;
}

.admin-nav-item svg { flex-shrink: 0; opacity: .6; transition: opacity var(--tx-fast); }

.admin-nav-item:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,.05);
}
.admin-nav-item:hover svg { opacity: 1; }

.admin-nav-item.active {
  color: var(--accent);
  background: rgba(245,166,35,.1);
  font-weight: var(--fw-semi);
}
.admin-nav-item.active svg { opacity: 1; }

.admin-nav-subitem {
  padding-left: calc(var(--sp-3) + 23px);
  font-size: var(--fs-xs);
  padding-top: var(--sp-1);
  padding-bottom: var(--sp-1);
}

.admin-nav-divider {
  height: 1px;
  background: var(--glass-border);
  margin: var(--sp-3) var(--sp-3);
  opacity: .5;
}

/* ─── Sidebar collapse ─────────────────────────────────────────────────── */
.sidebar-toggle-btn {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  width: 100%;
  padding: var(--sp-2) var(--sp-3);
  background: none;
  border: none;
  border-radius: var(--radius-md);
  color: var(--text-muted);
  cursor: pointer;
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  transition: color var(--tx-fast), background var(--tx-fast);
  white-space: nowrap;
  text-align: left;
  margin-bottom: var(--sp-3);
}
.sidebar-toggle-btn:hover { color: var(--text-primary); background: rgba(255,255,255,.05); }
.sidebar-toggle-btn svg { flex-shrink: 0; transition: transform var(--tx-fast); }

.admin-layout.sidebar-collapsed { grid-template-columns: 56px 1fr; }
.admin-sidebar.collapsed { padding: var(--sp-4) var(--sp-2) !important; }
.admin-sidebar.collapsed .admin-nav-group-label { display: none; }
.admin-sidebar.collapsed .nav-label { display: none; }
.admin-sidebar.collapsed .admin-nav-item { justify-content: center; padding: var(--sp-2); gap: 0; }
.admin-sidebar.collapsed .admin-nav-group { margin-bottom: var(--sp-2); }
.admin-sidebar.collapsed .admin-nav-divider { margin: var(--sp-1) 0; }
.admin-sidebar.collapsed .sidebar-toggle-btn { justify-content: center; gap: 0; margin-bottom: var(--sp-2); }
.admin-sidebar.collapsed .sidebar-toggle-btn svg { transform: rotate(180deg); }

.settings-area.sidebar-collapsed { grid-template-columns: 56px 1fr; }
.settings-sidebar.collapsed .settings-sidebar-title { display: none !important; }
.settings-sidebar.collapsed .nav-label { display: none; }
.settings-sidebar.collapsed .nav-separator { display: none; }
.settings-sidebar.collapsed .settings-sidebar-item { justify-content: center; gap: 0; }
.settings-sidebar.collapsed .back-btn { justify-content: center; gap: 0; }
.settings-sidebar.collapsed .sidebar-toggle-btn { justify-content: center; gap: 0; margin-bottom: var(--sp-1); }
.settings-sidebar.collapsed .sidebar-toggle-btn svg { transform: rotate(180deg); }

:root[data-theme="light"] .admin-nav-item:hover { background: rgba(0,0,0,.04); }

@media (max-width: 900px) {
  .admin-layout { grid-template-columns: 1fr; }
  .admin-sidebar {
    position: static;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-1);
    padding: var(--sp-2) var(--sp-3);
  }
  .admin-nav-group { display: contents; }
  .admin-nav-group-label { display: none; }
  .admin-nav-subitem { padding-left: var(--sp-3); }
  .admin-main { padding: var(--sp-4); }
}

/* ─── Container utility ──────────────────────────────────────────────────── */
.container {
  max-width: 1440px;
  margin: 0 auto;
  padding: var(--sp-6) var(--sp-6);
}

/* ─── Survey inputs ─────────────────────────────────────────────────────── */
.star-picker {
  display: flex;
  gap: var(--sp-2);
  align-items: center;
}
.star-btn {
  background: none;
  border: none;
  font-size: 1.75rem;
  color: var(--border-subtle);
  cursor: pointer;
  padding: 0;
  line-height: 1;
  transition: color var(--tx-fast), transform var(--tx-fast);
}
.star-btn:hover,
.star-btn.star-active {
  color: var(--color-accent);
  transform: scale(1.15);
}

.emoji-picker {
  display: flex;
  gap: var(--sp-3);
  align-items: center;
}
.emoji-btn {
  background: var(--glass-bg);
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  font-size: 1.75rem;
  cursor: pointer;
  padding: var(--sp-2);
  line-height: 1;
  transition: border-color var(--tx-fast), transform var(--tx-fast);
}
.emoji-btn:hover  { transform: scale(1.2); border-color: var(--border-subtle); }
.emoji-btn.emoji-active { border-color: var(--color-accent); transform: scale(1.2); }

.survey-choice-label {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-4);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  cursor: pointer;
  background: var(--glass-bg);
  transition: border-color var(--tx-fast), background var(--tx-fast);
}
.survey-choice-label:hover { border-color: var(--color-accent); }
.survey-choice-label:has(input:checked) {
  border-color: var(--color-accent);
  background: var(--glass-bg-strong);
}

/* ─── Novelty Bell ──────────────────────────────────────────────────────── */
.novelty-bell {
  position: relative;
}

.novelty-bell-btn {
  position: relative;
  padding: var(--sp-2) var(--sp-3);
}

.novelty-badge {
  position: absolute;
  top: 2px;
  right: 2px;
  min-width: 16px;
  height: 16px;
  padding: 0 4px;
  background: var(--color-accent);
  color: var(--accent-text);
  font-size: 10px;
  font-weight: var(--fw-bold);
  line-height: 16px;
  border-radius: var(--radius-full);
  text-align: center;
  pointer-events: none;
}

.novelty-dropdown {
  position: absolute;
  top: calc(100% + var(--sp-2));
  right: 0;
  width: 320px;
  background: rgba(28, 28, 28, 0.94);
  backdrop-filter: var(--blur-md);
  -webkit-backdrop-filter: var(--blur-md);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--glass-shadow);
  z-index: 200;
  overflow: hidden;
  /* hidden by default */
  opacity: 0;
  pointer-events: none;
  transform: translateY(-6px);
  transition: opacity 0.15s ease, transform 0.15s ease;
}
.novelty-dropdown.open {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.novelty-dropdown-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-3) var(--sp-5);
  border-bottom: 1px solid var(--border-subtle);
}

.novelty-dropdown-list {
  list-style: none;
  margin: 0;
  padding: 0;
  max-height: 300px;
  overflow-y: auto;
}

.novelty-item {
  display: flex;
  gap: var(--sp-3);
  align-items: flex-start;
  padding: var(--sp-3) var(--sp-5);
  color: var(--text-primary);
  text-decoration: none;
  transition: background var(--tx-fast);
  border-bottom: 1px solid var(--border-subtle);
}
a.novelty-item:hover {
  background: var(--glass-bg);
}

.novelty-dot {
  color: var(--color-accent);
  font-size: 8px;
  line-height: 1.6;
  flex-shrink: 0;
}

.novelty-dropdown-footer {
  padding: var(--sp-3) var(--sp-5);
  text-align: center;
  border-top: 1px solid var(--border-subtle);
}
.novelty-dropdown-footer a {
  font-size: var(--fs-sm);
  color: var(--color-accent);
  text-decoration: none;
}
.novelty-dropdown-footer a:hover {
  text-decoration: underline;
}

/* ─── Markdown rendered content ─────────────────────────────────────────── */
.markdown-body {
  line-height: var(--lh-relax);
  color: var(--text-primary);
}
.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4,
.markdown-body h5,
.markdown-body h6 {
  margin: var(--sp-6) 0 var(--sp-3);
  font-weight: var(--fw-semi);
  line-height: var(--lh-tight);
  color: var(--text-primary);
}
.markdown-body h1 { font-size: var(--fs-2xl); }
.markdown-body h2 { font-size: var(--fs-xl); }
.markdown-body h3 { font-size: var(--fs-lg); }
.markdown-body h4 { font-size: var(--fs-md); }
.markdown-body p  { margin: 0 0 var(--sp-4); }
.markdown-body a  { color: var(--color-accent); text-decoration: underline; }
.markdown-body a:hover { opacity: 0.8; }
.markdown-body ul,
.markdown-body ol {
  margin: 0 0 var(--sp-4);
  padding-left: var(--sp-8);
}
.markdown-body li { margin-bottom: var(--sp-1); }
.markdown-body blockquote {
  margin: var(--sp-4) 0;
  padding: var(--sp-3) var(--sp-5);
  border-left: 3px solid var(--color-accent);
  background: var(--glass-bg);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--text-muted);
}
.markdown-body code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--glass-bg);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.1em 0.4em;
}
.markdown-body pre {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--sp-5);
  overflow-x: auto;
  margin: 0 0 var(--sp-4);
}
.markdown-body pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: var(--fs-sm);
}
.markdown-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 var(--sp-4);
  font-size: var(--fs-sm);
}
.markdown-body th,
.markdown-body td {
  padding: var(--sp-2) var(--sp-4);
  border: 1px solid var(--border-subtle);
  text-align: left;
}
.markdown-body th {
  background: var(--glass-bg);
  font-weight: var(--fw-semi);
}
.markdown-body hr {
  border: none;
  border-top: 1px solid var(--border-subtle);
  margin: var(--sp-6) 0;
}
.markdown-body img {
  max-width: 100%;
  border-radius: var(--radius-md);
}

/* ─── Admin Sub-Navigation ───────────────────────────────────────────────── */
.admin-subnav {
  position: sticky;
  top: 57px;
  z-index: 90;
  background: var(--glass-bg-strong);
  backdrop-filter: var(--blur-sm);
  -webkit-backdrop-filter: var(--blur-sm);
  border-bottom: 1px solid var(--glass-border);
  overflow: visible;
}

.admin-subnav-inner {
  display: flex;
  align-items: stretch;
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 var(--sp-6);
}

.admin-subnav-item {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-3) var(--sp-4);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--text-muted);
  text-decoration: none;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color var(--tx-fast), border-color var(--tx-fast), background var(--tx-fast);
}
.admin-subnav-item svg {
  flex-shrink: 0;
  opacity: 0.6;
  transition: opacity var(--tx-fast);
}
.admin-subnav-item:hover {
  color: var(--text-primary);
  background: rgba(245, 166, 35, 0.06);
}
.admin-subnav-item:hover svg { opacity: 1; }
.admin-subnav-item.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
  font-weight: var(--fw-semi);
}
.admin-subnav-item.active svg { opacity: 1; }
.admin-subnav-item:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
}

:root[data-theme="light"] .admin-subnav-item:hover {
  background: rgba(200, 132, 15, 0.06);
}

/* ── Admin nav dropdown group ──────────────────────────────────────────── */
.admin-subnav-group {
  position: relative;
  display: inline-flex;
  align-items: stretch;
}

.admin-subnav-trigger {
  appearance: none;
  -webkit-appearance: none;
  background: none;
  border: none;
  padding: 0;
  margin: 0;
  cursor: pointer;
  font-family: inherit;
  font-size: inherit;
  font-weight: inherit;
  line-height: inherit;
  color: inherit;
}

.admin-subnav-chevron {
  flex-shrink: 0;
  margin-left: var(--sp-1);
  opacity: 0.45;
  transition: transform var(--tx-fast), opacity var(--tx-fast);
}

.admin-subnav-group.open .admin-subnav-chevron {
  transform: rotate(180deg);
  opacity: 1;
}

.admin-subnav-dropdown {
  display: none;
  position: absolute;
  top: 100%;
  right: 0;
  min-width: 170px;
  background: var(--glass-bg-strong);
  backdrop-filter: var(--blur-md);
  -webkit-backdrop-filter: var(--blur-md);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 24px rgba(0,0,0,.25);
  padding: var(--sp-1) 0;
  z-index: 200;
}

.admin-subnav-group.open .admin-subnav-dropdown {
  display: block;
}

.admin-subnav-dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-2) var(--sp-4);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--text-muted);
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--tx-fast), background var(--tx-fast);
}

.admin-subnav-dropdown-item:hover {
  color: var(--text-primary);
  background: rgba(245, 166, 35, 0.08);
}

.admin-subnav-dropdown-item.active {
  color: var(--accent);
  font-weight: var(--fw-semi);
}

.admin-subnav-dropdown-item svg {
  flex-shrink: 0;
  opacity: 0.6;
}

.admin-subnav-dropdown-item:hover svg,
.admin-subnav-dropdown-item.active svg {
  opacity: 1;
}

:root[data-theme="light"] .admin-subnav-dropdown {
  box-shadow: 0 8px 24px rgba(0,0,0,.12);
}

:root[data-theme="light"] .admin-subnav-dropdown-item:hover {
  background: rgba(200, 132, 15, 0.06);
}

@media (max-width: 600px) {
  .admin-subnav-label { display: none; }
  .admin-subnav-item { padding: var(--sp-3) var(--sp-3); }
  .admin-subnav-chevron { display: none; }
}

/* ─── Settings area (full-page layout when in /Admin/Settings or /Admin/EmailTemplates) ── */
.settings-area {
  display: grid;
  grid-template-columns: 220px 1fr;
  min-height: calc(100vh - 57px);
  align-items: start;
  width: 100%;
  margin: 0;
}

.settings-area-main {
  padding: var(--sp-6) var(--sp-8);
  min-width: 0;
  max-width: 960px;
}

@media (max-width: 900px) {
  .settings-area { grid-template-columns: 1fr; }
  .settings-area-main { padding: var(--sp-4); }
  .settings-area .settings-sidebar {
    position: static !important;
    top: auto !important;
    height: auto !important;
    overflow: visible !important;
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-1);
    border-right: 0 !important;
    border-bottom: 1px solid var(--glass-border);
    padding: var(--sp-3) var(--sp-4) !important;
  }
  .settings-area .settings-sidebar-title {
    display: none;
  }
  .settings-area .settings-sidebar > div {
    display: none;
  }
}

/* ─── Settings sidebar layout (legacy, kept for compatibility) ───────────── */
.settings-layout {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: var(--sp-8);
  align-items: start;
}

.settings-sidebar {
  position: sticky;
  top: 110px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--sp-3);
}

.settings-sidebar-title {
  font-size: var(--fs-xs);
  font-weight: var(--fw-semi);
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--text-muted);
  margin: var(--sp-1) var(--sp-2) var(--sp-3);
}

.settings-sidebar-item {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-2) var(--sp-3);
  border-radius: var(--radius-md);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--tx-fast), background var(--tx-fast);
}

.settings-sidebar-item:hover {
  color: var(--text-primary);
  background: var(--glass-bg-hover, rgba(255,255,255,.06));
}

.settings-sidebar-item.active {
  color: var(--accent);
  background: rgba(245, 166, 35, 0.1);
  font-weight: var(--fw-semi);
}

.settings-sidebar-item svg {
  flex-shrink: 0;
  opacity: 0.6;
}

.settings-sidebar-item:hover svg,
.settings-sidebar-item.active svg { opacity: 1; }

@media (max-width: 768px) {
  .settings-layout {
    grid-template-columns: 1fr;
  }
  .settings-sidebar {
    position: static;
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-1);
    padding: var(--sp-2);
  }
  .settings-sidebar-title { display: none; }
}

/* ─── Toast notifications ────────────────────────────────────────────────── */
.toast-container {
  position: fixed;
  top: var(--sp-5);
  right: var(--sp-5);
  z-index: 9000;
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  pointer-events: none;
  max-width: 380px;
  width: calc(100vw - 2 * var(--sp-5));
}

.toast {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: var(--sp-3);
  padding: var(--sp-4) var(--sp-4) calc(var(--sp-4) + 3px);
  border-radius: var(--radius-lg);
  background: var(--glass-bg-strong);
  backdrop-filter: var(--blur-lg);
  -webkit-backdrop-filter: var(--blur-lg);
  border: 1px solid var(--glass-border);
  box-shadow: 0 8px 32px rgba(0,0,0,.35);
  pointer-events: all;
  overflow: hidden;
  animation: toast-in 320ms cubic-bezier(0.34, 1.2, 0.64, 1) both;
}

@@keyframes toast-in {
  from { opacity: 0; transform: translateX(24px) scale(.97); }
  to   { opacity: 1; transform: translateX(0)   scale(1); }
}

.toast.toast-out {
  animation: toast-fade 260ms ease-in forwards;
}

@@keyframes toast-fade {
  to { opacity: 0; transform: translateX(12px) scale(.97); }
}

.toast-icon {
  flex-shrink: 0;
  margin-top: 1px;
}
.toast-success .toast-icon { color: var(--success); }
.toast-danger  .toast-icon { color: var(--danger); }
.toast-warning .toast-icon { color: var(--warning); }

.toast-body {
  flex: 1;
  min-width: 0;
  font-size: var(--fs-sm);
  color: var(--text-primary);
  line-height: 1.45;
}

.toast-close {
  flex-shrink: 0;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  padding: 0;
  line-height: 1;
  font-size: 18px;
  margin-top: -1px;
  transition: color var(--tx-fast);
}
.toast-close:hover { color: var(--text-primary); }

.toast-progress {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  transform-origin: left center;
  animation: toast-progress var(--toast-duration, 4s) linear forwards;
}
.toast-success .toast-progress { background: var(--success); }
.toast-danger  .toast-progress { background: var(--danger); }
.toast-warning .toast-progress { background: var(--warning); }

@@keyframes toast-progress {
  from { transform: scaleX(1); }
  to   { transform: scaleX(0); }
}

/* novelty badge pulse */
@@keyframes badge-pulse {
  0%, 100% { transform: scale(1); }
  50%       { transform: scale(1.2); }
}
.novelty-badge { animation: badge-pulse 2s ease-in-out 3; }

/* ─── Admin page utilities ───────────────────────────────────────────────── */
.admin-page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--sp-4);
  margin-bottom: var(--sp-6);
}
.admin-page-header h1 { margin: 0; }
.admin-page-header-rich {
  align-items: flex-start;
}
.admin-page-heading {
  min-width: 0;
}
.admin-page-eyebrow {
  margin: 0 0 var(--sp-1);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semi);
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--accent);
}
.admin-page-subtitle {
  max-width: 680px;
  margin: var(--sp-2) 0 0;
  font-size: var(--fs-sm);
  color: var(--text-muted);
  line-height: 1.45;
}
.admin-page-header-actions {
  display: flex;
  gap: var(--sp-3);
  align-items: center;
}

.admin-actions-menu {
  position: relative;
}
.admin-actions-menu summary {
  list-style: none;
}
.admin-actions-menu summary::-webkit-details-marker {
  display: none;
}
.admin-actions-menu[open] summary {
  border-color: var(--accent);
  background: var(--glass-bg-strong);
}
.admin-actions-dropdown {
  position: absolute;
  top: calc(100% + var(--sp-2));
  right: 0;
  z-index: 210;
  width: min(320px, calc(100vw - var(--sp-8)));
  padding: var(--sp-2);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  background: var(--bg-elevated);
  box-shadow: var(--glass-shadow);
}
.admin-actions-dropdown-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: var(--sp-3);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  text-decoration: none;
}
.admin-actions-dropdown-item:hover {
  background: var(--glass-bg-strong);
}
.admin-actions-dropdown-title {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semi);
}
.admin-actions-dropdown-help {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  line-height: 1.35;
}

@media (max-width: 760px) {
  .admin-page-header {
    align-items: stretch;
    flex-direction: column;
  }
  .admin-page-header-actions {
    flex-wrap: wrap;
  }
  .admin-actions-menu {
    flex: 1;
  }
  .admin-actions-menu summary,
  .admin-page-header-actions > .glass-btn {
    width: 100%;
  }
  .admin-actions-dropdown {
    left: 0;
    right: auto;
  }
}

.admin-filter {
  display: flex;
  gap: var(--sp-3);
  flex-wrap: wrap;
  align-items: center;
  position: relative;
  z-index: 10;
  padding: var(--sp-3) var(--sp-5);
  background: var(--glass-bg);
  backdrop-filter: var(--blur-sm);
  -webkit-backdrop-filter: var(--blur-sm);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  margin-bottom: var(--sp-5);
}
/* Override the global width:100% that glass-input sets — selects stay auto-sized */
.admin-filter .glass-input { width: auto; flex-shrink: 0; }
/* Search inputs grow to fill remaining space and can compress */
.admin-filter input.glass-input { flex-shrink: 1; min-width: 0; }
.admin-filter .glass-btn { flex-shrink: 0; white-space: nowrap; }

.admin-table {
  width: 100%;
  border-collapse: collapse;
}
.admin-table th,
.admin-table td {
  padding: var(--sp-3) var(--sp-4);
  text-align: left;
  border-bottom: 1px solid var(--border-subtle);
}
.admin-table th {
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--text-muted);
}
.admin-table tbody tr:hover { background: var(--glass-bg-strong); }
.admin-table tr:last-child td { border-bottom: none; }

.admin-badge {
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  padding: 2px var(--sp-2);
  border-radius: var(--radius-full);
  line-height: 1.5;
}
.admin-badge-on     { background: var(--success); color: var(--accent-text); }
.admin-badge-off    { background: var(--glass-bg-strong); color: var(--text-muted); border: 1px solid var(--glass-border); }
.admin-badge-danger  { background: var(--danger); color: var(--accent-text); }
.admin-badge-info    { background: var(--info); color: var(--accent-text); }
.admin-badge-warning { background: var(--warning); color: var(--accent-text); }

/* ─── Sector/etiqueta pill (tarjetas de curso/ruta/búsqueda) ─────────────── */
.sector-badge {
  background: rgba(245, 166, 35, 0.12);
  color: var(--accent);
  border: 1px solid rgba(245, 166, 35, 0.28);
  border-radius: var(--radius-full);
  padding: 2px var(--sp-3);
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  white-space: nowrap;
}
.tag-badge {
  background: var(--glass-bg);
  color: var(--text-secondary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  padding: 2px var(--sp-3);
  font-size: var(--fs-xs);
  white-space: nowrap;
}

/* ─── "Obligatorio" pill (curso/ruta/lección) ────────────────────────────── */
.required-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: var(--fs-xs);
  font-weight: var(--fw-semi);
  padding: 3px var(--sp-3);
  border-radius: var(--radius-full);
  background: rgba(245, 158, 11, 0.18);
  color: var(--warning);
  border: 1px solid rgba(245, 158, 11, 0.45);
  white-space: nowrap;
}
.lesson-req {
  flex-shrink: 0;
  font-size: 10px;
  font-weight: var(--fw-semi);
  padding: 1px 6px;
  border-radius: var(--radius-full);
  background: rgba(245, 158, 11, 0.18);
  color: var(--warning);
  border: 1px solid rgba(245, 158, 11, 0.45);
}

/* ─── Sidebar de contenido del curso (Courses/Detail.cshtml y Lesson.cshtml) ── */
.lesson-sidebar {
  position: sticky;
  top: calc(57px + var(--sp-4));
  max-height: calc(100vh - 57px - var(--sp-8));
  overflow-y: auto;
  scrollbar-width: thin;
}
.lesson-sidebar::-webkit-scrollbar { width: 4px; }
.lesson-sidebar::-webkit-scrollbar-thumb { background: var(--glass-border); border-radius: 4px; }

.module-block { margin-bottom: var(--sp-3); }
.module-summary {
  display: flex; align-items: center; gap: var(--sp-2);
  font-size: var(--fs-sm); font-weight: var(--fw-semi);
  color: var(--text-primary); cursor: pointer;
  padding: var(--sp-2) var(--sp-2);
  border-radius: var(--radius-sm);
  list-style: none;
  user-select: none;
}
.module-summary:hover { background: var(--glass-bg-strong); }
.module-summary::marker, .module-summary::-webkit-details-marker { display: none; }
.module-caret {
  margin-left: auto; transition: transform 200ms ease;
  color: var(--text-muted); font-size: 10px;
}
details[open] .module-caret { transform: rotate(180deg); }

.lesson-item {
  display: flex; align-items: center; gap: var(--sp-3);
  padding: var(--sp-2) var(--sp-3) var(--sp-2) calc(var(--sp-3) + 2px);
  border-radius: var(--radius-sm);
  text-decoration: none; color: inherit;
  font-size: var(--fs-sm);
  transition: background 120ms;
  border-left: 2px solid transparent;
}
.lesson-item:hover { background: var(--glass-bg-strong); }
.lesson-item.is-next {
  border-left-color: var(--accent);
  background: rgba(245,166,35,.06);
}
.lesson-item.is-done { color: var(--text-muted); }
.lesson-item.is-current {
  border-left-color: var(--accent);
  background: rgba(245,166,35,.12);
  font-weight: var(--fw-semi);
}

.lesson-icon { flex-shrink: 0; width: 18px; text-align: center; font-size: var(--fs-xs); }
.lesson-title { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.sidebar-progress-bar {
  height: 3px; border-radius: var(--radius-full);
  background: var(--glass-bg-strong); margin-bottom: var(--sp-4);
}
.sidebar-progress-fill {
  height: 100%; border-radius: var(--radius-full);
  background: var(--accent); transition: width 600ms ease;
}

/* ─── Avatar con iniciales (fallback sin foto de perfil) ─────────────────── */
.avatar-initials {
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent) 0%, #a78bfa 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--fw-bold);
  color: var(--accent-text);
  flex-shrink: 0;
}

/* ─── Toggle switch (usado en formularios de curso/ruta y otros) ─────────── */
.toggle-switch { position:relative; display:inline-block; width:34px; height:20px; border-radius:10px; background:var(--glass-border); transition:background var(--tx-fast); flex-shrink:0; }
.toggle-switch.on { background:var(--accent); }
/* Cuando .toggle-switch se aplica a un <button> (para que el toggle sea un submit
   real, ej. AdminEmailTemplates/AdminNovelties) el navegador le agrega su borde/
   relieve nativo de <button>, que se ve como un marco negro extraño alrededor del
   switch — reseteado acá una sola vez en vez de repetirlo por vista. */
button.toggle-switch { border:none; padding:0; cursor:pointer; }
.toggle-thumb { position:absolute; top:3px; left:3px; width:14px; height:14px; border-radius:50%; background:#fff; transition:transform var(--tx-fast); }
.toggle-switch.on .toggle-thumb { transform:translateX(14px); }

/* ─── KPI filter tiles (Courses/Index y Paths/Index — vencimiento/obligatoriedad) ───
   Checkbox real oculto + tarjeta estilizada como sibling: el estado activo/inactivo
   es CSS puro (:checked ~ selector), sin depender de JS para el look. Cada vista
   decide con su propio JS/form si el toggle dispara un submit (Courses, server-side)
   o solo re-filtra el grid ya renderizado (Paths, client-side). */
.kpi-filter-row { display:flex; gap:var(--sp-4); flex-wrap:wrap; margin-bottom:var(--sp-5); }
.kpi-filter-tile { cursor:pointer; }
.kpi-filter-tile input { position:absolute; opacity:0; width:1px; height:1px; overflow:hidden; }
.kpi-filter-card {
  display:flex; flex-direction:column; gap:2px;
  min-width:132px; padding:var(--sp-4);
  border-radius:var(--radius-lg);
  background:var(--glass-bg); border:1px solid var(--glass-border);
  transition:border-color var(--tx-fast), background var(--tx-fast), transform var(--tx-fast);
}
.kpi-filter-tile:hover .kpi-filter-card { transform:translateY(-2px); }
.kpi-filter-tile input:checked + .kpi-filter-card {
  border-color:var(--tile-accent, var(--accent));
  background:color-mix(in srgb, var(--tile-accent, var(--accent)) 14%, var(--glass-bg));
}
.kpi-filter-tile input:focus-visible + .kpi-filter-card {
  outline:2px solid var(--tile-accent, var(--accent)); outline-offset:2px;
}
.kpi-filter-value { font-size:var(--fs-xl); font-weight:var(--fw-bold); line-height:1.1; }
.kpi-filter-label { font-size:var(--fs-xs); color:var(--text-muted); }

.glass-btn-sm {
  font-size: var(--fs-xs) !important;
  padding: var(--sp-1) var(--sp-3) !important;
}

.admin-pagination {
  display: flex;
  justify-content: center;
  gap: var(--sp-2);
  margin-top: var(--sp-5);
}
.admin-pagination .glass-btn.active {
  background: var(--accent);
  color: var(--accent-text);
  border-color: transparent;
}

/* ─── Modo claro: fondos sólidos para evitar el tinte ámbar del blur ──────── */
/*
   backdrop-filter + saturate(140%) amplifica el glass-tint ámbar del body,
   produciendo un fondo extraño en modo claro. Se reemplaza por fondos
   sólidos opacos manteniendo el mismo look visual.
*/
:root[data-theme="light"] .glass-btn {
  background-color: var(--bg-elevated);
  background-image: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  border-color: var(--border);
}
:root[data-theme="light"] .glass-btn:hover {
  background-color: var(--bg-secondary);
  border-color: var(--accent);
}

/* Botones con variante de color: restaurar su color propio en modo claro */
:root[data-theme="light"] .glass-btn.glass-btn-primary {
  background-color: var(--accent);
  color: var(--accent-text);
  border-color: transparent;
}
:root[data-theme="light"] .glass-btn.glass-btn-primary:hover {
  background-color: var(--accent-hover);
  border-color: transparent;
}
:root[data-theme="light"] .glass-btn.glass-btn-danger {
  background-color: var(--danger);
  color: var(--accent-text);
  border-color: transparent;
}
:root[data-theme="light"] .glass-btn.glass-btn-danger:hover {
  background-color: #b91c1c;
  color: #fff;
  border-color: transparent;
}

:root[data-theme="light"] .glass-input,
:root[data-theme="light"] .form-control {
  background-color: var(--bg-elevated);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  border-color: var(--border);
}
:root[data-theme="light"] .glass-input:focus,
:root[data-theme="light"] .form-control:focus {
  background-color: var(--bg-elevated);
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(200, 132, 15, 0.12);
}

/* Select: restaurar arrow único sin tiling */
:root[data-theme="light"] select.glass-input,
:root[data-theme="light"] select.form-control {
  background-color: var(--bg-elevated);
  background-repeat: no-repeat;
  background-position: right var(--sp-3) center;
}

:root[data-theme="light"] .glass-card {
  background-color: var(--bg-elevated);
  background-image: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  border-color: var(--border);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}
:root[data-theme="light"] .glass-card:hover {
  border-color: var(--accent);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.10);
}

:root[data-theme="light"] .glass,
:root[data-theme="light"] .glass-strong {
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  background-color: var(--bg-elevated);
  background-image: none;
  border-color: var(--border);
}

:root[data-theme="light"] .glass-nav {
  background-color: rgba(255, 255, 255, 0.95);
  background-image: none;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom-color: var(--border);
}

/* ─── Icon action buttons ────────────────────────────────────────────────── */
.row-actions {
  display: inline-flex;
  align-items: center;
  gap: 2px;
}
.act-sep {
  width: 1px;
  height: 18px;
  background: var(--glass-border);
  margin: 0 4px;
  flex-shrink: 0;
}
.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  padding: 0;
  border: 1px solid transparent;
  border-radius: 6px;
  background: transparent;
  cursor: pointer;
  color: var(--text-muted);
  text-decoration: none;
  flex-shrink: 0;
  transition: background var(--tx-fast), border-color var(--tx-fast), color var(--tx-fast);
}
.btn-icon:hover {
  background: var(--glass-bg-strong);
  border-color: var(--glass-border);
  color: var(--text-primary);
}
.btn-icon-primary         { color: var(--accent); }
.btn-icon-primary:hover   { background: rgba(245,166,35,.15); border-color: rgba(245,166,35,.3); }
.btn-icon-success         { color: var(--success); }
.btn-icon-success:hover   { background: rgba(74,222,128,.12); border-color: rgba(74,222,128,.3); }
.btn-icon-warning         { color: var(--warning); }
.btn-icon-warning:hover   { background: rgba(251,191,36,.12); border-color: rgba(251,191,36,.3); }
.btn-icon-danger          { color: var(--danger); }
.btn-icon-danger:hover    { background: rgba(248,113,113,.12); border-color: rgba(248,113,113,.3); }

/* ─── Mobile responsive ──────────────────────────────────────────────────── */

/* 640px: breakpoint principal mobile */
@media (max-width: 640px) {

  /* ── Navbar ── */
  .glass-nav {
    padding: 0 var(--sp-3);
    gap: var(--sp-2);
  }
  /* Ocultar barra de búsqueda — hay poco espacio en mobile. El acceso a
     /Search lo mantiene .nav-search-link (ícono, visible solo acá). */
  .glass-nav form[role="search"] { display: none !important; }
  .glass-nav .nav-search-link { display: inline-flex !important; }
  /* Reducir iconos de navegación */
  .glass-nav .nav-links a { width: 32px; height: 32px; }
  .glass-nav .nav-links { gap: 2px; }
  /* Ocultar el nombre de texto del avatar, conservar solo el círculo */
  .nav-avatar-name,
  .nav-avatar-caret { display: none; }
  .nav-avatar {
    padding: 3px;
    border-radius: var(--radius-full);
  }
  /* Dropdown de usuario: ajustar para no salirse por la derecha */
  .nav-dropdown {
    right: calc(-1 * var(--sp-2));
    min-width: min(calc(100vw - var(--sp-6)), 280px);
  }
  /* Novelty dropdown: no salirse del viewport */
  .novelty-dropdown {
    width: min(320px, calc(100vw - var(--sp-6)));
    right: calc(-1 * var(--sp-2));
  }

  /* ── Container general ── */
  .container { padding: var(--sp-4) var(--sp-4); }

  /* ── Admin main ── */
  .admin-main { padding: var(--sp-4) var(--sp-4) !important; }
  .settings-area-main { padding: var(--sp-4) var(--sp-4) !important; }

  /* ── Tablas con scroll horizontal ── */
  .glass-table,
  .admin-table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  /* ── glass-card: menos padding en mobile ── */
  .glass-card { padding: var(--sp-4); }

  /* ── Botones de acción en encabezados de página ── */
  .admin-page-header-actions { flex-wrap: wrap; }
  .admin-page-header-actions .glass-btn { min-width: 0; }

  /* ── Chat widget: más pegado al borde ── */
  #wu-chat-widget { bottom: 16px; right: 16px; }
  #wu-chat-btn { width: 44px; height: 44px; }
}

/* ─── Fallback para browsers sin backdrop-filter ─────────────────────────── */
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .glass,
  .glass-strong,
  .glass-card,
  .glass-nav,
  .glass-input,
  .form-control,
  .glass-table,
  .glass-modal,
  .glass-btn,
  .alert {
    background: var(--bg-secondary);
  }
}

/* ─── Certificate tile (compartida: Certificates/Index + dashboards Home) ── */
.cert-tile {
  width: 300px;
  height: 380px;
  display: flex;
  flex-direction: column;
  text-decoration: none;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: transform var(--tx-base), box-shadow var(--tx-base), border-color var(--tx-base);
}
.cert-tile:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: 0 16px 40px rgba(0, 0, 0, .4);
}
.cert-tile-preview {
  flex: 1;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: var(--sp-3);
  padding: var(--sp-6);
  margin: var(--sp-4);
  border: 2px solid rgba(245, 166, 35, .35);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 50% 0%, rgba(245, 166, 35, .14), transparent 60%),
    var(--glass-bg-strong);
}
.cert-tile-preview::before,
.cert-tile-preview::after {
  content: '';
  position: absolute;
  width: 10px; height: 10px;
  border: 2px solid rgba(245, 166, 35, .35);
}
.cert-tile-preview::before { top: 6px; left: 6px; border-right: none; border-bottom: none; }
.cert-tile-preview::after  { bottom: 6px; right: 6px; border-left: none; border-top: none; }
.cert-tile-ribbon {
  width: 64px; height: 64px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: rgba(245, 166, 35, .15);
  color: var(--accent);
}
.cert-tile-kicker {
  margin: 0;
  font-size: var(--fs-xs);
  font-weight: var(--fw-semi);
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--accent);
}
.cert-tile-course-title {
  margin: 0;
  font-size: var(--fs-md);
  font-weight: var(--fw-semi);
  color: var(--text-primary);
  line-height: var(--lh-tight);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.cert-tile-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  padding: var(--sp-4) var(--sp-5);
  border-top: 1px solid var(--glass-border);
}
.cert-tile-date {
  margin: 0;
  font-size: var(--fs-xs);
  color: var(--text-muted);
}
.cert-tile-arrow {
  width: 32px; height: 32px;
  border-radius: 10px;
  background: var(--border-subtle);
  color: var(--text-secondary);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  transition: transform var(--tx-fast), background var(--tx-fast), color var(--tx-fast);
}
.cert-tile:hover .cert-tile-arrow {
  background: var(--accent); color: var(--accent-text); transform: translateX(3px);
}

/* ─── Donut legend (compartida: AdminReports + dashboards Home) ──────────── */
.chart-hdr-actions { display:flex; align-items:center; gap:var(--sp-2); }
.chart-export-btn {
  display:inline-flex; align-items:center; justify-content:center;
  width:24px; height:24px; border-radius:var(--radius-md); flex-shrink:0;
  background:transparent; border:1px solid var(--glass-border); color:var(--text-muted);
  cursor:pointer; transition:color 150ms ease, border-color 150ms ease;
}
.chart-export-btn:hover { color:var(--accent); border-color:var(--accent); }

.donut-legend-row { display:flex; align-items:center; gap:var(--sp-2); font-size:var(--fs-xs); margin-bottom:6px; }
.donut-dot { width:10px; height:10px; border-radius:50%; flex-shrink:0; }

/* Variante compacta para preview dentro de dashboards (Home) */
.cert-tile-sm {
  width: 220px;
  height: 260px;
}
.cert-tile-sm .cert-tile-preview { padding: var(--sp-4); margin: var(--sp-3); gap: var(--sp-2); }
.cert-tile-sm .cert-tile-ribbon { width: 44px; height: 44px; }
.cert-tile-sm .cert-tile-ribbon svg { width: 22px; height: 22px; }
.cert-tile-sm .cert-tile-course-title { font-size: var(--fs-sm); -webkit-line-clamp: 2; }
.cert-tile-sm .cert-tile-footer { padding: var(--sp-3) var(--sp-4); }