/* ==========================================================================
   Forprocer LMS - Componentes reutilizables
   Glass cards, botones, inputs, badges, toasts, modales, skeletons, tablas,
   dropdowns y avatares
   ========================================================================== */

/* --------------------------------------------------------------------------
   Titulo con gradiente (reutilizable)
   -------------------------------------------------------------------------- */
.section-title-gradient {
  font-weight: var(--font-semibold);
  background: linear-gradient(90deg, var(--color-primary-dark), var(--color-primary-light));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* --------------------------------------------------------------------------
   Glass Card
   -------------------------------------------------------------------------- */
.glass-card {
  background: var(--glass-bg-card);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border-strong);
  border-radius: var(--glass-radius);
  box-shadow: var(--glass-shadow);
  padding: var(--space-6);
  transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
}

.glass-card:hover {
  box-shadow: var(--glass-shadow-lg);
  border-color: rgba(255, 255, 255, 0.5);
}

.glass-card--sm {
  padding: var(--space-4);
  border-radius: var(--glass-radius-sm);
}

.glass-card--lg {
  padding: var(--space-8);
  border-radius: var(--glass-radius-lg);
}

.glass-card--interactive {
  transition: box-shadow var(--transition-fast), transform var(--transition-fast), border-color var(--transition-fast);
}

.glass-card--interactive:hover {
  transform: translateY(-3px);
  box-shadow: var(--glass-shadow-lg);
  border-color: rgba(52, 144, 132, 0.25);
}

/* --------------------------------------------------------------------------
   Botones
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-5);
  min-height: 40px;
  font-family: var(--font-family);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  line-height: 1;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition:
    background-color var(--transition-base),
    border-color var(--transition-base),
    color var(--transition-base),
    box-shadow var(--transition-base),
    transform var(--transition-base);
  white-space: nowrap;
  user-select: none;
  position: relative;
  overflow: hidden;
}

.btn:hover {
  transform: scale(1.02);
}

.btn:active {
  transform: scale(0.98);
}

.btn:disabled,
.btn[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
  transform: none;
}

.btn svg,
.btn i {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* Boton primario */
.btn-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: var(--color-white);
  box-shadow: 0 2px 8px rgba(var(--color-primary-rgb), 0.3);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-primary-lighter, #6ec6d0) 100%);
  box-shadow: 0 4px 16px rgba(var(--color-primary-rgb), 0.4);
  color: var(--color-white);
  text-decoration: none;
}

.btn-primary:active {
  box-shadow: 0 1px 4px rgba(var(--color-primary-rgb), 0.3);
}

/* Efecto espejo/cristal en btn-primary */
.btn-primary::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    120deg,
    transparent 0%,
    transparent 30%,
    rgba(255, 255, 255, 0.25) 50%,
    transparent 70%,
    transparent 100%
  );
  transform: translateX(-100%);
  transition: transform 0.5s ease;
  pointer-events: none;
}

.btn-primary:hover::after {
  transform: translateX(100%);
}

/* Movimiento arriba-derecha del boton de login */
#btn-magic-link:hover {
  transform: translate(2px, -2px) scale(1.02);
}

/* Boton secundario */
.btn-secondary {
  background: var(--color-white);
  color: var(--color-gray-700);
  border-color: var(--color-gray-300);
  box-shadow: var(--shadow-xs);
}

.btn-secondary {
  position: relative;
  overflow: hidden;
}

.btn-secondary::after {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: linear-gradient(120deg, transparent 0%, transparent 30%, rgba(255,255,255,0.5) 50%, transparent 70%, transparent 100%);
  transform: translateX(-100%);
  transition: transform 0.5s ease;
  pointer-events: none;
}

.btn-secondary:hover {
  background: var(--color-gray-50);
  border-color: var(--color-gray-400);
  color: var(--color-gray-900);
  text-decoration: none;
  transform: translate(1px, -1px);
}

.btn-secondary:hover::after {
  transform: translateX(100%);
}

/* Boton peligro */
.btn-danger {
  background: var(--color-error);
  color: var(--color-white);
  box-shadow: 0 2px 8px rgba(var(--color-error-rgb), 0.3);
}

.btn-danger:hover {
  background: #b91c1c;
  box-shadow: 0 4px 16px rgba(var(--color-error-rgb), 0.4);
  color: var(--color-white);
  text-decoration: none;
}

/* Boton ghost (sin fondo) */
.btn-ghost {
  background: transparent;
  color: var(--color-gray-600);
}

.btn-ghost:hover {
  background: var(--color-gray-100);
  color: var(--color-gray-900);
  text-decoration: none;
}

/* Boton outline con efecto sweep */
.btn-outline-sweep {
  background: var(--color-white, #fff);
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
  position: relative;
  overflow: hidden;
  transition: transform 0.3s ease;
}

.btn-outline-sweep::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    120deg,
    transparent 0%,
    transparent 30%,
    rgba(var(--color-primary-rgb), 0.15) 50%,
    transparent 70%,
    transparent 100%
  );
  transform: translateX(-100%);
  transition: transform 0.5s ease;
  pointer-events: none;
}

.btn-outline-sweep:hover {
  transform: translate(2px, -2px);
}

.btn-outline-sweep:hover::after {
  transform: translateX(100%);
}

/* Tamanos de boton */
.btn-sm {
  padding: var(--space-1) var(--space-3);
  min-height: 32px;
  font-size: var(--text-xs);
  border-radius: var(--radius-full);
}

.btn-lg {
  padding: var(--space-3) var(--space-8);
  min-height: 48px;
  font-size: var(--text-base);
  border-radius: var(--radius-full);
}

.btn-icon {
  padding: var(--space-2);
  min-height: 40px;
  width: 40px;
}

.btn-block {
  display: flex;
  width: 100%;
}

/* --------------------------------------------------------------------------
   Input Field
   -------------------------------------------------------------------------- */
.input-field {
  display: block;
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-family);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  line-height: var(--leading-normal);
  color: var(--color-gray-800);
  background-color: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(var(--color-primary-rgb), 0.35);
  border-radius: var(--radius-lg);
  outline: none;
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    background-color var(--transition-base);
}

.input-field::placeholder {
  color: var(--color-gray-400);
}

.input-field:hover {
  border-color: var(--color-gray-400);
}

select.input-field {
  appearance: none;
  -webkit-appearance: none;
  padding-right: var(--space-10);
  background-color: rgba(255, 255, 255, 0.8);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236b7280' 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-size: 12px 12px;
  background-position: calc(100% - 12px) center;
  cursor: pointer;
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    box-shadow 0.6s ease;
  box-shadow: inset 0 0 0 0 rgba(var(--color-primary-rgb), 0);
}

select.input-field:hover {
  border-color: rgba(var(--color-primary-rgb), 0.4);
  box-shadow: inset 200px 0 80px -80px rgba(var(--color-primary-rgb), 0.2);
}

select.input-field:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.15);
}

.input-field:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.15);
  background-color: var(--color-white);
}

.input-field--error,
.input-field.is-error {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px rgba(var(--color-error-rgb), 0.1);
}

.input-field--error:focus,
.input-field.is-error:focus {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px rgba(var(--color-error-rgb), 0.2);
}

.input-field:disabled {
  background: var(--color-gray-100);
  color: var(--color-gray-400);
  cursor: not-allowed;
  opacity: 0.7;
}

/* Grupo de input con label */
.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-gray-700);
  margin-bottom: var(--space-2);
}

.form-error {
  display: block;
  font-size: var(--text-xs);
  color: var(--color-error);
  margin-top: var(--space-1);
}

.form-hint {
  display: block;
  font-size: var(--text-xs);
  color: var(--color-gray-500);
  margin-top: var(--space-1);
}

/* Textarea */
textarea.input-field {
  min-height: 100px;
  resize: vertical;
}

/* Select */
select.input-field {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 20 20' fill='%236b7280'%3E%3Cpath fill-rule='evenodd' d='M5.293 7.293a1 1 0 011.414 0L10 10.586l3.293-3.293a1 1 0 111.414 1.414l-4 4a1 1 0 01-1.414 0l-4-4a1 1 0 010-1.414z' clip-rule='evenodd'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-3) center;
  background-size: 20px;
  padding-right: var(--space-10);
}

/* --------------------------------------------------------------------------
   Badges (roles)
   -------------------------------------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 2px var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  line-height: 1.6;
  border-radius: var(--radius-full);
  white-space: nowrap;
  border: 1px solid transparent;
}

.badge-alumno {
  background: var(--role-alumno-light);
  color: var(--role-alumno);
  border-color: var(--role-alumno-border);
}

.badge-tutor {
  background: var(--role-tutor-light);
  color: var(--role-tutor);
  border-color: var(--role-tutor-border);
}

.badge-gestor {
  background: var(--role-gestor-light);
  color: var(--role-gestor);
  border-color: var(--role-gestor-border);
}

.badge-inspector {
  background: var(--role-inspector-light);
  color: var(--role-inspector);
  border-color: var(--role-inspector-border);
}

.badge-admin {
  background: var(--role-admin-light);
  color: var(--role-admin);
  border-color: var(--role-admin-border);
}

/* Badge neutro */
.badge-neutral {
  background: var(--color-gray-100);
  color: var(--color-gray-600);
  border-color: var(--color-gray-200);
}

/* Badge de estado */
.badge-success {
  background: var(--color-success-light);
  color: var(--color-success);
  border-color: var(--color-success-border);
}

.badge-error {
  background: var(--color-error-light);
  color: var(--color-error);
  border-color: var(--color-error-border);
}

.badge-warning {
  background: var(--color-warning-light);
  color: var(--color-warning);
  border-color: var(--color-warning-border);
}

/* Punto indicador en badge */
.badge__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

/* --------------------------------------------------------------------------
   Toasts (notificaciones)
   -------------------------------------------------------------------------- */
@keyframes slideInRight {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes slideOutRight {
  from {
    transform: translateX(0);
    opacity: 1;
  }
  to {
    transform: translateX(100%);
    opacity: 0;
  }
}

.toast-container {
  position: fixed;
  top: calc(var(--navbar-height, 56px) + var(--space-4));
  right: var(--space-4);
  z-index: var(--z-toast, 9999);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  pointer-events: none;
  max-width: 420px;
  width: 100%;
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg);
  background: var(--color-white, #fff);
  border: 1px solid var(--color-gray-200, #e5e7eb);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08), 0 1px 3px rgba(0, 0, 0, 0.04);
  animation: slideInRight 0.3s ease forwards;
  pointer-events: all;
  position: relative;
  overflow: hidden;
}

.toast::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  border-radius: var(--radius-lg) 0 0 var(--radius-lg);
}

.toast-exit {
  animation: slideOutRight 0.3s ease forwards;
}

.toast__icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.toast__icon svg {
  display: block;
}

.toast__message {
  flex: 1;
  font-size: var(--text-sm, 0.875rem);
  font-weight: var(--font-medium, 500);
  color: var(--color-gray-700, #374151);
  margin: 0;
  line-height: var(--leading-normal, 1.5);
}

.toast__close {
  flex-shrink: 0;
  padding: var(--space-1);
  color: var(--color-gray-400, #9ca3af);
  cursor: pointer;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--transition-fast), background var(--transition-fast);
}

.toast__close:hover {
  color: var(--color-gray-600, #4b5563);
  background: var(--color-gray-100, #f3f4f6);
}

/* Variantes */
.toast-success::before { background: var(--color-success); }
.toast-success .toast__icon { color: var(--color-success); }

.toast-error::before { background: var(--color-error); }
.toast-error .toast__icon { color: var(--color-error); }

.toast-warning::before { background: var(--color-warning); }
.toast-warning .toast__icon { color: var(--color-warning); }

.toast-info::before { background: var(--color-primary); }
.toast-info .toast__icon { color: var(--color-primary); }

/* --------------------------------------------------------------------------
   Modal
   -------------------------------------------------------------------------- */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeOut {
  from { opacity: 1; }
  to { opacity: 0; }
}

@keyframes scaleIn {
  from {
    transform: scale(0.95) translateY(10px);
    opacity: 0;
  }
  to {
    transform: scale(1) translateY(0);
    opacity: 1;
  }
}

@keyframes scaleOut {
  from {
    transform: scale(1) translateY(0);
    opacity: 1;
  }
  to {
    transform: scale(0.95) translateY(10px);
    opacity: 0;
  }
}

.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: var(--z-overlay);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  animation: fadeIn 0.2s ease forwards;
}

.modal-overlay.is-closing {
  animation: fadeOut 0.2s ease forwards;
}

.modal {
  background: var(--glass-bg-card);
  backdrop-filter: blur(var(--glass-blur-strong));
  -webkit-backdrop-filter: blur(var(--glass-blur-strong));
  border: 1px solid var(--glass-border-strong);
  border-radius: var(--glass-radius);
  box-shadow: var(--glass-shadow-lg);
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  animation: scaleIn 0.3s ease forwards;
}

.modal-overlay.is-closing .modal {
  animation: scaleOut 0.2s ease forwards;
}

.modal--lg {
  max-width: 720px;
}

.modal--sm {
  max-width: 400px;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-6);
  border-bottom: 1px solid var(--color-gray-200);
}

.modal-title,
.modal-header h2,
.modal-header h3 {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  color: var(--color-gray-900);
  margin: 0;
}

.modal-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: none;
  background: none;
  border-radius: var(--radius-md);
  color: var(--color-gray-400);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  transition: color var(--transition-fast), background var(--transition-fast);
  flex-shrink: 0;
}

.modal-close:hover {
  color: var(--color-gray-600);
  background: var(--color-gray-100);
}

.modal-body {
  padding: var(--space-6);
}

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--color-gray-200);
}

/* --------------------------------------------------------------------------
   Skeleton Loader (shimmer)
   -------------------------------------------------------------------------- */
@keyframes shimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-gray-200) 25%,
    var(--color-gray-100) 37%,
    var(--color-gray-200) 63%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  border-radius: var(--radius-md);
}

.skeleton-text {
  height: 16px;
  margin-bottom: var(--space-2);
  width: 100%;
}

.skeleton-text:last-child {
  width: 70%;
}

.skeleton-title {
  height: 24px;
  width: 50%;
  margin-bottom: var(--space-4);
}

.skeleton-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
}

.skeleton-card {
  height: 120px;
  border-radius: var(--glass-radius);
}

.skeleton-btn {
  height: 40px;
  width: 120px;
  border-radius: var(--radius-lg);
}

.skeleton-row {
  height: 48px;
  margin-bottom: var(--space-2);
}

/* --------------------------------------------------------------------------
   Tabla responsiva
   -------------------------------------------------------------------------- */
.tabla-responsive {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.tabla-responsive table {
  width: 100%;
  border-collapse: collapse;
}

.tabla-responsive thead {
  background: rgba(var(--color-primary-rgb), 0.05);
}

.tabla-responsive th {
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  color: var(--color-primary);
  text-align: left;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 2px solid rgba(var(--color-primary-rgb), 0.15);
  white-space: nowrap;
  user-select: none;
}

.tabla-responsive th[data-sortable] {
  cursor: pointer;
  transition: color var(--transition-fast);
}

.tabla-responsive th[data-sortable]:hover {
  color: var(--color-gray-700);
}

.tabla-responsive td {
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-gray-700);
  border-bottom: 1px solid rgba(var(--color-primary-rgb), 0.15);
  vertical-align: middle;
}

.tabla-responsive tbody tr {
  transition: box-shadow 1.2s ease;
  box-shadow: inset 2000px 0 0 0 rgba(var(--color-primary-rgb), 0);
}

.tabla-responsive tbody tr:hover {
  box-shadow: inset 0 0 0 0 rgba(var(--color-primary-rgb), 0.14);
}

.tabla-responsive tbody tr:last-child td {
  border-bottom: none;
}

/* Tabla apilada en movil: tarjetas */
@media (max-width: 768px) {
  .tabla-responsive table,
  .tabla-responsive thead,
  .tabla-responsive tbody,
  .tabla-responsive th,
  .tabla-responsive td,
  .tabla-responsive tr {
    display: block;
  }

  .tabla-responsive thead {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
  }

  .tabla-responsive tbody tr {
    background: var(--glass-bg-card);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    margin-bottom: var(--space-3);
    box-shadow: var(--shadow-sm);
  }

  .tabla-responsive tbody tr:hover {
    background: var(--glass-bg-card);
  }

  .tabla-responsive td {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-2) 0;
    border-bottom: 1px solid var(--color-gray-100);
    text-align: right;
  }

  .tabla-responsive td:last-child {
    border-bottom: none;
  }

  .tabla-responsive td::before {
    content: attr(data-label);
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    color: var(--color-gray-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    text-align: left;
    flex-shrink: 0;
    margin-right: var(--space-3);
  }
}

/* Paginacion de tabla */
.tabla-paginacion {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) 0;
  font-size: var(--text-sm);
  color: var(--color-gray-500);
}

.tabla-paginacion__info {
  white-space: nowrap;
}

.tabla-paginacion__controles {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.tabla-paginacion__btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-gray-200);
  color: var(--color-gray-600);
  background: var(--color-white);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tabla-paginacion__btn:hover {
  background: var(--color-gray-50);
  border-color: var(--color-gray-300);
}

.tabla-paginacion__btn.is-active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}

.tabla-paginacion__btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* --------------------------------------------------------------------------
   Dropdown
   -------------------------------------------------------------------------- */
.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown__trigger {
  cursor: pointer;
}

.dropdown__menu {
  position: absolute;
  top: 100%;
  right: 0;
  z-index: var(--z-dropdown);
  min-width: 200px;
  padding: var(--space-2);
  margin-top: var(--space-1);
  background: var(--glass-bg-card);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border-strong);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px) scale(0.97);
  transition:
    opacity var(--transition-fast),
    visibility var(--transition-fast),
    transform var(--transition-fast);
}

.dropdown.is-open .dropdown__menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.dropdown__item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  width: 100%;
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-gray-700);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast);
  text-decoration: none;
  text-align: left;
  border: none;
  background: none;
}

.dropdown__item:hover {
  background: var(--color-gray-100);
  color: var(--color-gray-900);
  text-decoration: none;
}

.dropdown__item--danger {
  color: var(--color-error);
}

.dropdown__item--danger:hover {
  background: var(--color-error-light);
  color: var(--color-error);
}

.dropdown__divider {
  height: 1px;
  margin: var(--space-2) 0;
  background: var(--color-gray-200);
}

.dropdown__item svg,
.dropdown__item i {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  opacity: 0.7;
}

/* --------------------------------------------------------------------------
   Avatar
   -------------------------------------------------------------------------- */
.avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: var(--color-white);
  font-weight: var(--font-semibold);
  overflow: hidden;
  flex-shrink: 0;
  user-select: none;
}

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

.avatar--xs {
  width: 24px;
  height: 24px;
  font-size: var(--text-xs);
}

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

.avatar--md {
  width: 40px;
  height: 40px;
  font-size: var(--text-sm);
}

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

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

/* Avatar con indicador de estado */
.avatar-wrapper {
  position: relative;
  display: inline-block;
}

.avatar-wrapper__status {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid var(--color-white);
}

.avatar-wrapper__status--online {
  background: var(--color-success);
}

.avatar-wrapper__status--offline {
  background: var(--color-gray-400);
}

/* --------------------------------------------------------------------------
   Empty state
   -------------------------------------------------------------------------- */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-12) var(--space-6);
  text-align: center;
}

.empty-state__icon {
  width: 64px;
  height: 64px;
  color: var(--color-gray-300);
  margin-bottom: var(--space-4);
}

.empty-state__title {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  color: var(--color-gray-700);
  margin-bottom: var(--space-2);
}

.empty-state__description {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  max-width: 360px;
  margin-bottom: var(--space-6);
}

/* --------------------------------------------------------------------------
   Loading spinner
   -------------------------------------------------------------------------- */
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--color-gray-200);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

.spinner--lg {
  width: 32px;
  height: 32px;
  border-width: 3px;
}

.loading-overlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  z-index: var(--z-overlay);
}

/* --------------------------------------------------------------------------
   Divider
   -------------------------------------------------------------------------- */
.divider {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin: var(--space-6) 0;
  color: var(--color-gray-400);
  font-size: var(--text-sm);
}

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

/* --------------------------------------------------------------------------
   File Upload Zone
   -------------------------------------------------------------------------- */
.file-upload-zone {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-8) var(--space-6);
  border: 2px dashed var(--color-gray-300);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: border-color var(--transition-fast), background var(--transition-fast);
  text-align: center;
}

.file-upload-zone:hover,
.file-upload-zone.drag-over {
  border-color: var(--color-primary);
  background: rgba(var(--color-primary-rgb), 0.03);
}

.file-upload-zone__icon {
  width: 40px;
  height: 40px;
  color: var(--color-gray-400);
}

.file-upload-zone__text {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
}

.file-upload-zone__text strong {
  color: var(--color-primary);
}

.file-upload-zone__hint {
  font-size: var(--text-xs);
  color: var(--color-gray-400);
}

/* Upload progress */
.file-upload-progress {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  background: var(--color-white);
}

.file-upload-progress__info {
  flex: 1;
  min-width: 0;
}

.file-upload-progress__name {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-gray-800);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-upload-progress__size {
  font-size: var(--text-xs);
  color: var(--color-gray-400);
}

.file-upload-progress__bar {
  width: 100%;
  height: 4px;
  background: var(--color-gray-200);
  border-radius: 2px;
  overflow: hidden;
  margin-top: var(--space-1);
}

.file-upload-progress__fill {
  height: 100%;
  background: var(--color-primary);
  border-radius: 2px;
  transition: width 0.3s ease;
}

/* --------------------------------------------------------------------------
   Documento item (lista de documentos)
   -------------------------------------------------------------------------- */
.documento-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  background: var(--color-white);
}

.documento-item + .documento-item {
  margin-top: var(--space-2);
}

.documento-item__info {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  min-width: 0;
  flex: 1;
}

.documento-item__icon {
  width: 32px;
  height: 32px;
  color: #dc2626;
  flex-shrink: 0;
}

.documento-item__details {
  min-width: 0;
}

.documento-item__name {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-gray-800);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.documento-item__meta {
  font-size: var(--text-xs);
  color: var(--color-gray-400);
}

.documento-item__actions {
  display: flex;
  gap: var(--space-1);
  flex-shrink: 0;
}

.documento-item--pending {
  border-style: dashed;
  opacity: 0.6;
}

.documento-item--global .badge {
  font-size: 10px;
}

/* --------------------------------------------------------------------------
   Navbar alert badge
   -------------------------------------------------------------------------- */
.navbar-alert-btn {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    color: var(--color-gray-600);
    transition: color var(--transition-fast), background var(--transition-fast);
    text-decoration: none;
}

.navbar-alert-btn:hover {
    color: var(--color-gray-900);
    background: var(--color-gray-100);
    text-decoration: none;
}

.navbar-alert-badge {
    position: absolute;
    top: 2px;
    right: 2px;
    min-width: 16px;
    height: 16px;
    padding: 0 4px;
    font-size: 10px;
    font-weight: var(--font-bold);
    line-height: 16px;
    text-align: center;
    color: var(--color-white);
    background: var(--color-error);
    border-radius: var(--radius-full);
    border: 2px solid var(--color-white);
}

/* --- Dropdown menu --- */
.dropdown-item {
    display: block;
    width: 100%;
    padding: var(--space-2) var(--space-3);
    border: none;
    background: none;
    text-align: left;
    font-size: var(--text-sm);
    color: var(--color-gray-700);
    cursor: pointer;
}

.dropdown-item:hover {
    background: var(--color-gray-100);
    color: var(--color-gray-900);
}