/* ===================================================
   EduAI Docente - Estilos del Panel Administrador
   =================================================== */

:root {
  --admin-bg: #0a0d14;
  --admin-sidebar: #0f1420;
  --admin-card: #141b2b;
  --admin-card-hover: #1b2438;
  --admin-border: #232d42;
  --admin-accent: #38bdf8;
  --admin-purple: #818cf8;
  --admin-emerald: #10b981;
  --admin-rose: #f43f5e;
  --admin-amber: #f59e0b;
}

body.admin-body {
  background-color: var(--admin-bg);
  color: #f1f5f9;
  display: block;
  overflow-y: auto;
  min-height: 100vh;
}

/* Header */
.admin-navbar {
  background: var(--admin-sidebar);
  border-bottom: 1px solid var(--admin-border);
  padding: 14px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 40;
}

.admin-nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.admin-nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

/* Contenedor Principal */
.admin-container {
  max-width: 1180px;
  margin: 32px auto;
  padding: 0 20px 60px;
}

.admin-header-title {
  margin-bottom: 24px;
}

.admin-header-title h1 {
  font-size: 1.8rem;
  font-weight: 700;
  color: #f8fafc;
}

.admin-header-title p {
  color: #94a3b8;
  font-size: 0.92rem;
  margin-top: 4px;
}

/* Pestañas de Navegación */
.admin-tabs {
  display: flex;
  gap: 8px;
  border-bottom: 1px solid var(--admin-border);
  margin-bottom: 28px;
  overflow-x: auto;
  padding-bottom: 2px;
}

.admin-tab-btn {
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: #94a3b8;
  padding: 10px 18px;
  font-size: 0.92rem;
  font-weight: 500;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s;
  white-space: nowrap;
}

.admin-tab-btn:hover {
  color: #f8fafc;
}

.admin-tab-btn.active {
  color: var(--admin-accent);
  border-bottom-color: var(--admin-accent);
  font-weight: 600;
}

/* Tarjetas y Secciones */
.admin-tab-content {
  display: none;
  animation: fadeIn 0.25s ease;
}

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

.admin-card {
  background: var(--admin-card);
  border: 1px solid var(--admin-border);
  border-radius: 14px;
  padding: 24px;
  margin-bottom: 24px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
}

.card-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.card-title-row h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: #f8fafc;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Tablas */
.admin-table-wrapper {
  overflow-x: auto;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  text-align: left;
}

.admin-table th {
  background: #0f1624;
  color: #94a3b8;
  font-weight: 600;
  padding: 12px 14px;
  border-bottom: 1px solid var(--admin-border);
}

.admin-table td {
  padding: 12px 14px;
  border-bottom: 1px solid #1a2336;
  color: #cbd5e1;
}

.admin-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

/* Badges */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 9px;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.status-badge.active {
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.status-badge.inactive {
  background: rgba(244, 63, 94, 0.15);
  color: #f87171;
  border: 1px solid rgba(244, 63, 94, 0.3);
}

.status-badge.info {
  background: rgba(56, 189, 248, 0.15);
  color: #38bdf8;
  border: 1px solid rgba(56, 189, 248, 0.3);
}

/* Formularios en Admin */
.admin-form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
}

.admin-form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.admin-form-group label {
  font-size: 0.84rem;
  font-weight: 600;
  color: #cbd5e1;
}

.admin-input, .admin-select {
  background: #1a2336;
  border: 1px solid #283750;
  color: #f8fafc;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 0.92rem;
  outline: none;
  transition: border-color 0.2s;
}

.admin-input:focus, .admin-select:focus {
  border-color: var(--admin-accent);
}

/* Botones */
.btn-primary {
  background: linear-gradient(135deg, #2563eb, #3b82f6);
  border: none;
  color: white;
  padding: 10px 18px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s;
}

.btn-primary:hover {
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.4);
  transform: translateY(-1px);
}

.btn-secondary {
  background: #1e293b;
  border: 1px solid var(--admin-border);
  color: #cbd5e1;
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 0.85rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s;
}

.btn-secondary:hover {
  background: #27354d;
  color: white;
}

.btn-danger-outline {
  background: transparent;
  border: 1px solid rgba(244, 63, 94, 0.4);
  color: #f87171;
  padding: 6px 10px;
  border-radius: 6px;
  font-size: 0.8rem;
  cursor: pointer;
}

.btn-danger-outline:hover {
  background: rgba(244, 63, 94, 0.15);
}

/* Modales */
.admin-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 20px;
}

.admin-modal-overlay.open {
  display: flex;
}

.admin-modal {
  width: 100%;
  max-width: 500px;
  background: #141c2c;
  border: 1px solid var(--admin-border);
  border-radius: 14px;
  padding: 24px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
  animation: modalScale 0.2s ease;
}

@keyframes modalScale {
  from { transform: scale(0.95); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.modal-close-btn {
  background: transparent;
  border: none;
  color: #94a3b8;
  font-size: 1.4rem;
  cursor: pointer;
}

/* Alertas de Notificación */
.admin-toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: #1e293b;
  border: 1px solid var(--admin-border);
  border-radius: 10px;
  padding: 14px 20px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  font-size: 0.9rem;
  z-index: 120;
  display: none;
  animation: slideUp 0.3s ease;
}

.admin-toast.success {
  border-color: rgba(16, 185, 129, 0.4);
  color: #34d399;
}

.admin-toast.error {
  border-color: rgba(244, 63, 94, 0.4);
  color: #fda4af;
}

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