/* ==========================================================================
   EduPeak LMS Modern Admin Panel Stylesheet
   Theme: High-Performance Glassmorphic Console with eWings & Vibrant Accents
   ========================================================================== */

.admin-modal-wrapper {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: #f1f5f9;
  z-index: 1300;
  display: flex;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

.admin-modal-wrapper.active {
  opacity: 1;
  pointer-events: auto;
}

/* --------------------------------------------------------------------------
   1. MODERN ADMIN SIDEBAR
   -------------------------------------------------------------------------- */
.admin-sidebar {
  width: 280px;
  background: #0f172a;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  box-shadow: 4px 0 25px rgba(0, 0, 0, 0.15);
  z-index: 20;
  color: #f8fafc;
}

.admin-sidebar-brand {
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(15, 23, 42, 0.95);
}

.admin-brand-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.admin-logo-box {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, #227aff 0%, #1e40af 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.15rem;
  box-shadow: 0 4px 12px rgba(34, 122, 255, 0.4);
}

.admin-brand-info h3 {
  font-size: 1.05rem;
  font-weight: 800;
  color: #ffffff;
  line-height: 1.2;
  font-family: 'Outfit', sans-serif;
  letter-spacing: -0.01em;
}

.admin-brand-info span {
  font-size: 0.65rem;
  font-weight: 800;
  color: #60a5fa;
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

/* Sidebar Navigation */
.admin-nav-menu {
  padding: 1rem 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  flex-grow: 1;
  overflow-y: auto;
}

.admin-nav-section-title {
  font-size: 0.68rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #64748b;
  padding: 0.75rem 0.75rem 0.35rem;
}

.admin-nav-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.7rem 0.9rem;
  border-radius: 10px;
  font-size: 0.875rem;
  font-weight: 600;
  color: #94a3b8;
  background: transparent;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 1px solid transparent;
  text-align: left;
  width: 100%;
}

.admin-nav-item-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.admin-nav-item i {
  font-size: 1.05rem;
  color: #64748b;
  width: 20px;
  text-align: center;
  transition: all 0.2s ease;
}

.admin-nav-item:hover {
  background: rgba(255, 255, 255, 0.06);
  color: #ffffff;
}

.admin-nav-item:hover i {
  color: #38bdf8;
  transform: scale(1.1);
}

.admin-nav-item.active {
  background: linear-gradient(135deg, rgba(34, 122, 255, 0.2) 0%, rgba(30, 64, 175, 0.15) 100%);
  color: #ffffff;
  font-weight: 700;
  border-color: rgba(56, 189, 248, 0.3);
  box-shadow: 0 4px 15px rgba(34, 122, 255, 0.15);
}

.admin-nav-item.active i {
  color: #38bdf8;
}

.admin-nav-badge {
  font-size: 0.68rem;
  font-weight: 800;
  padding: 0.15rem 0.5rem;
  border-radius: 9999px;
  background: #f59e0b;
  color: #000000;
  box-shadow: 0 0 10px rgba(245, 158, 11, 0.5);
  animation: pulse-badge 2s infinite;
}

@keyframes pulse-badge {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(1.05); }
}

.admin-sidebar-footer {
  padding: 1.25rem 1.25rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(15, 23, 42, 0.98);
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.admin-user-profile-card {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 0.85rem;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.admin-user-avatar {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.85rem;
}

.admin-user-meta {
  flex: 1;
  min-width: 0;
}

.admin-user-name {
  font-size: 0.8rem;
  font-weight: 700;
  color: #f8fafc;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.admin-user-role {
  font-size: 0.68rem;
  color: #94a3b8;
}

.admin-close-btn {
  width: 100%;
  padding: 0.65rem 1rem;
  border-radius: 8px;
  background: rgba(239, 68, 68, 0.15);
  color: #f87171;
  border: 1px solid rgba(239, 68, 68, 0.3);
  font-size: 0.825rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: all 0.2s ease;
}

.admin-close-btn:hover {
  background: #ef4444;
  color: #ffffff;
  border-color: #ef4444;
  box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
}

/* --------------------------------------------------------------------------
   2. MAIN CONTENT AREA & HEADER
   -------------------------------------------------------------------------- */
.admin-main-area {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  background: #f8fafc;
  overflow: hidden;
  position: relative;
}

.admin-top-header {
  height: 4.5rem;
  background: #ffffff;
  border-bottom: 1px solid #e2e8f0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 2rem;
  flex-shrink: 0;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.02);
  z-index: 10;
}

.admin-header-title h2 {
  font-size: 1.35rem;
  font-weight: 800;
  color: #0f172a;
  font-family: 'Outfit', sans-serif;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.admin-header-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.admin-time-pill {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  padding: 0.35rem 0.75rem;
  border-radius: 8px;
  font-size: 0.775rem;
  font-weight: 700;
  color: #475569;
}

.supabase-badge-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  padding: 0.35rem 0.85rem;
  border-radius: 9999px;
  font-size: 0.775rem;
  font-weight: 700;
  color: #166534;
}

.supabase-badge-status.offline {
  background: #fffbeb;
  border-color: #fde68a;
  color: #92400e;
}

.status-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #94a3b8;
}

.status-indicator.connected {
  background: #10b981;
  box-shadow: 0 0 8px #10b981;
}

.status-indicator.disconnected {
  background: #f59e0b;
}

.btn-header-action {
  padding: 0.45rem 0.95rem;
  border-radius: 8px;
  font-size: 0.825rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 1px solid transparent;
}

/* --------------------------------------------------------------------------
   3. SCROLL AREA & TAB PANES
   -------------------------------------------------------------------------- */
.admin-scroll-body {
  flex-grow: 1;
  overflow-y: auto;
  padding: 1.75rem 2rem 3rem;
}

.admin-tab-pane {
  display: none;
  max-width: 1400px;
  margin: 0 auto;
  animation: fadeInPane 0.25s ease;
}

@keyframes fadeInPane {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

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

/* --------------------------------------------------------------------------
   4. METRICS & STAT CARDS (Gradient Glow)
   -------------------------------------------------------------------------- */
.admin-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.25rem;
  margin-bottom: 1.75rem;
}

.admin-stat-card {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  padding: 1.25rem 1.4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04), 0 6px 16px rgba(0, 0, 0, 0.02);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
}

.admin-stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #227aff 0%, #38bdf8 100%);
  opacity: 0;
  transition: opacity 0.25s ease;
}

.admin-stat-card:hover {
  transform: translateY(-3px);
  border-color: #cbd5e1;
  box-shadow: 0 10px 25px rgba(34, 122, 255, 0.08);
}

.admin-stat-card:hover::before {
  opacity: 1;
}

.stat-card-info h4 {
  font-size: 0.775rem;
  color: #64748b;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.35rem;
}

.stat-card-info .stat-val {
  font-size: 1.85rem;
  font-weight: 900;
  color: #0f172a;
  font-family: 'Outfit', sans-serif;
  line-height: 1.1;
}

.stat-card-info .stat-subtitle {
  font-size: 0.725rem;
  font-weight: 700;
  margin-top: 0.35rem;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.stat-card-icon {
  width: 50px;
  height: 50px;
  border-radius: 12px;
  background: #eff6ff;
  color: #227aff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  box-shadow: inset 0 2px 4px rgba(255, 255, 255, 0.8);
}

/* Stat Variants */
.admin-stat-card.students .stat-card-icon { background: #eff6ff; color: #227aff; }
.admin-stat-card.courses .stat-card-icon { background: #f0fdf4; color: #10b981; }
.admin-stat-card.teachers .stat-card-icon { background: #faf5ff; color: #a855f7; }
.admin-stat-card.live .stat-card-icon { background: #fef2f2; color: #ef4444; }
.admin-stat-card.orders .stat-card-icon { background: #fffbeb; color: #f59e0b; }

/* --------------------------------------------------------------------------
   5. QUICK ACTION COMMAND CENTER BAR
   -------------------------------------------------------------------------- */
.admin-quick-actions-bar {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  padding: 1rem 1.25rem;
  margin-bottom: 1.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.02);
}

.quick-actions-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 800;
  color: #0f172a;
}

.quick-actions-btns {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-wrap: wrap;
}

.btn-quick-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.85rem;
  border-radius: 8px;
  font-size: 0.8rem;
  font-weight: 700;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  color: #334155;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-quick-pill:hover {
  background: #eff6ff;
  border-color: #93c5fd;
  color: #1d4ed8;
  transform: translateY(-1px);
}

.btn-quick-pill.primary {
  background: linear-gradient(135deg, #227aff 0%, #1e40af 100%);
  color: #ffffff;
  border-color: transparent;
  box-shadow: 0 2px 8px rgba(34, 122, 255, 0.25);
}

.btn-quick-pill.primary:hover {
  background: linear-gradient(135deg, #1d4ed8 0%, #172554 100%);
  color: #ffffff;
}

/* --------------------------------------------------------------------------
   6. ADMIN CARDS & TABLES
   -------------------------------------------------------------------------- */
.admin-card-container {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.03), 0 8px 24px rgba(0, 0, 0, 0.02);
  overflow: hidden;
  margin-bottom: 2rem;
}

.admin-card-header {
  padding: 1.25rem 1.75rem;
  border-bottom: 1px solid #e2e8f0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  background: #ffffff;
}

.admin-card-header h3 {
  font-size: 1.05rem;
  font-weight: 800;
  color: #0f172a;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: 'Outfit', sans-serif;
}

.admin-actions-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.admin-search-wrapper {
  position: relative;
  min-width: 240px;
}

.admin-search-wrapper i {
  position: absolute;
  left: 0.85rem;
  top: 50%;
  transform: translateY(-50%);
  color: #94a3b8;
  font-size: 0.85rem;
}

.admin-search-input {
  background: #f8fafc;
  border: 1.5px solid #e2e8f0;
  border-radius: 10px;
  padding: 0.5rem 0.85rem 0.5rem 2.25rem;
  font-size: 0.85rem;
  color: #0f172a;
  width: 100%;
  transition: all 0.2s ease;
}

.admin-search-input:focus {
  background: #ffffff;
  border-color: #227aff;
  box-shadow: 0 0 0 3px rgba(34, 122, 255, 0.12);
  outline: none;
}

.admin-filter-select {
  background: #f8fafc;
  border: 1.5px solid #e2e8f0;
  border-radius: 10px;
  padding: 0.5rem 0.85rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: #334155;
  cursor: pointer;
  transition: all 0.2s ease;
}

.admin-filter-select:focus {
  border-color: #227aff;
  outline: none;
}

/* Data Tables */
.admin-table-responsive {
  overflow-x: auto;
  width: 100%;
}

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

.admin-table th {
  background: #f8fafc;
  color: #475569;
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.9rem 1.25rem;
  border-bottom: 1.5px solid #e2e8f0;
  white-space: nowrap;
}

.admin-table td {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid #f1f5f9;
  font-size: 0.875rem;
  color: #334155;
  vertical-align: middle;
}

.admin-table tbody tr {
  transition: background-color 0.15s ease;
}

.admin-table tbody tr:hover {
  background: #f8fbff;
}

/* Status Tags & Pills */
.status-tag {
  font-size: 0.725rem;
  font-weight: 800;
  padding: 0.2rem 0.65rem;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  white-space: nowrap;
}

.status-tag.active {
  background: #dcfce7;
  color: #15803d;
  border: 1px solid #bbf7d0;
}

.status-tag.pending {
  background: #fef3c7;
  color: #92400e;
  border: 1px solid #fde68a;
}

.status-tag.suspended {
  background: #fee2e2;
  color: #b91c1c;
  border: 1px solid #fecaca;
}

/* NIC Copyable Badge */
.nic-badge-copyable {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  padding: 0.25rem 0.55rem;
  border-radius: 6px;
  font-family: monospace;
  font-size: 0.775rem;
  font-weight: 700;
  color: #334155;
  cursor: pointer;
  transition: all 0.2s ease;
}

.nic-badge-copyable:hover {
  background: #eff6ff;
  border-color: #bfdbfe;
  color: #1d4ed8;
}

/* WhatsApp Quick Button */
.btn-whatsapp-sm {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.65rem;
  border-radius: 6px;
  background: #25d366;
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 700;
  text-decoration: none;
  transition: all 0.2s ease;
}

.btn-whatsapp-sm:hover {
  background: #1ebc57;
  color: #ffffff;
  transform: translateY(-1px);
}

/* --------------------------------------------------------------------------
   7. COURSE GRID CARDS (Alternative to Table View)
   -------------------------------------------------------------------------- */
.admin-course-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
  padding: 1.5rem;
}

.admin-course-card {
  background: #ffffff;
  border: 1.5px solid #e2e8f0;
  border-radius: 14px;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.03);
  transition: all 0.25s ease;
}

.admin-course-card:hover {
  border-color: #227aff;
  box-shadow: 0 8px 24px rgba(34, 122, 255, 0.08);
  transform: translateY(-2px);
}

.admin-course-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 0.75rem;
}

.admin-course-badge {
  font-size: 0.7rem;
  font-weight: 800;
  padding: 0.2rem 0.55rem;
  border-radius: 6px;
  background: #eff6ff;
  color: #1d4ed8;
  border: 1px solid #bfdbfe;
}

.admin-course-title {
  font-size: 1rem;
  font-weight: 800;
  color: #0f172a;
  margin-bottom: 0.5rem;
  line-height: 1.35;
}

.admin-course-meta {
  font-size: 0.8rem;
  color: #64748b;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 1rem;
}

.admin-course-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid #f1f5f9;
  padding-top: 0.85rem;
}

.admin-course-fee {
  font-size: 1.05rem;
  font-weight: 900;
  color: #0f172a;
}

/* --------------------------------------------------------------------------
   8. MODALS & DRAWERS
   -------------------------------------------------------------------------- */
.admin-drawer-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(5px);
  z-index: 1400;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  pointer-events: none;
  transition: all 0.25s ease;
}

.admin-drawer-modal.active {
  opacity: 1;
  pointer-events: auto;
}

.admin-drawer-card {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 18px;
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.2);
  animation: modalPop 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.modal-header {
  padding: 1.25rem 1.75rem;
  border-bottom: 1px solid #e2e8f0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-body {
  padding: 1.75rem;
}

.modal-close-btn {
  background: #f1f5f9;
  border: none;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  color: #64748b;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.modal-close-btn:hover {
  background: #fee2e2;
  color: #ef4444;
}

/* --------------------------------------------------------------------------
   9. RESPONSIVE BREAKPOINTS
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .admin-stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .admin-modal-wrapper {
    flex-direction: column;
  }
  .admin-sidebar {
    width: 100%;
    height: auto;
  }
  .admin-stats-grid {
    grid-template-columns: 1fr;
  }
  .admin-top-header {
    padding: 0 1rem;
  }
  .admin-scroll-body {
    padding: 1rem;
  }
}