/* ===================================================================
   ADMIN DASHBOARD STYLES
   =================================================================== */

.admin-body {
  background-color: var(--bg-alt);
  min-height: 100vh;
}

.admin-layout {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.admin-sidebar {
  width: 260px;
  background: var(--bg-main);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 50;
  transition: var(--transition);
}

.sidebar-header {
  padding: 1.5rem 1.25rem;
  border-bottom: 1px solid var(--border);
}

.sidebar-nav {
  padding: 1.25rem 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  flex-grow: 1;
  overflow-y: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  color: var(--text-muted);
  font-family: inherit;
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  width: 100%;
  text-align: left;
  transition: var(--transition);
}

.nav-item:hover {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-main);
}

body.light-theme .nav-item:hover {
  background: rgba(0, 0, 0, 0.04);
}

.nav-item.active {
  background: var(--primary-glow);
  border-color: rgba(79, 70, 229, 0.3);
  color: var(--primary);
}

.badge-count {
  margin-left: auto;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-dim);
}

.badge-count.unread-badge {
  background: var(--danger);
  color: #fff;
}

.sidebar-footer {
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.88rem;
  color: var(--text-dim);
  padding: 0.5rem 0.5rem;
  border-radius: var(--radius-sm);
  background: transparent;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-weight: 500;
  text-decoration: none;
}

.sidebar-link:hover {
  color: var(--text-main);
}

.logout-link:hover {
  color: var(--danger);
}

/* Main Area */
.admin-main {
  margin-left: 260px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Topbar */
.admin-topbar {
  height: 70px;
  background: var(--bg-main);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  position: sticky;
  top: 0;
  z-index: 40;
}

.topbar-title {
  font-size: 1.35rem;
  font-weight: 800;
}

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

/* Content Body */
.admin-content-body {
  padding: 2rem;
  flex-grow: 1;
}

.tab-pane {
  display: none;
  animation: fadeIn 0.25s ease forwards;
}

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

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

/* Admin Cards */
.admin-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  margin-bottom: 2rem;
  box-shadow: var(--shadow-sm);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1.5rem;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.card-sub {
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* Stats Grid */
.admin-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.admin-stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.admin-stat-card:hover {
  transform: translateY(-2px);
  border-color: var(--primary);
}

.stat-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.stat-icon-wrap {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
}

.stat-tag {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-dim);
}

.stat-val {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1;
  margin-bottom: 0.35rem;
}

/* Banner Card */
.admin-banner-card {
  background: linear-gradient(135deg, rgba(79, 70, 229, 0.15), rgba(6, 182, 212, 0.1));
  border: 1px solid rgba(79, 70, 229, 0.3);
  border-radius: var(--radius-lg);
  padding: 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.banner-text h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.banner-text p {
  font-size: 0.92rem;
  color: var(--text-muted);
  max-width: 650px;
}

.banner-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* Uploads Section */
.uploads-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.avatar-preview-box {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  overflow: hidden;
  margin: 0 auto 1.5rem;
  border: 4px solid var(--primary);
  box-shadow: 0 0 25px var(--primary-glow);
}

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

.drop-zone {
  border: 2px dashed rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-md);
  padding: 2.5rem 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  background: rgba(0, 0, 0, 0.15);
}

body.light-theme .drop-zone {
  border-color: rgba(0, 0, 0, 0.15);
  background: rgba(0, 0, 0, 0.02);
}

.drop-zone:hover, .drop-zone.dragover {
  border-color: var(--primary);
  background: var(--primary-glow);
}

.drop-zone-prompt {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  align-items: center;
}

.file-hidden {
  display: none;
}

.current-file-badge {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

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

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

.admin-table th {
  padding: 0.85rem 1rem;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border);
}

.admin-table td {
  padding: 1rem;
  font-size: 0.92rem;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

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

.table-avatar-thumb {
  width: 48px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: #1e293b;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

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

.action-btns {
  display: flex;
  gap: 0.5rem;
}

.action-btn {
  padding: 0.35rem 0.65rem;
  font-size: 0.8rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-main);
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
}

.action-btn:hover {
  color: var(--text-main);
  border-color: var(--primary);
}

.action-btn.delete:hover {
  color: var(--danger);
  border-color: var(--danger);
  background: rgba(239, 68, 68, 0.1);
}

.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 0.4rem;
}

.status-unread {
  background: var(--danger);
  box-shadow: 0 0 8px var(--danger);
}

.status-read {
  background: var(--text-dim);
}

/* Settings Grid */
.settings-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

/* Modals */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  animation: fadeIn 0.2s ease forwards;
}

.modal-backdrop.hidden {
  display: none;
}

.modal-box {
  background: var(--bg-main);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 640px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 2rem;
  box-shadow: var(--shadow-lg);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.modal-header h3 {
  font-size: 1.35rem;
}

.modal-close {
  background: transparent;
  border: none;
  font-size: 1.75rem;
  color: var(--text-dim);
  cursor: pointer;
}

.modal-close:hover {
  color: var(--danger);
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

/* Responsive */
@media (max-width: 992px) {
  .admin-sidebar {
    width: 70px;
  }
  .admin-sidebar .brand-name,
  .admin-sidebar small,
  .admin-sidebar .nav-item span,
  .admin-sidebar .badge-count,
  .sidebar-link span {
    display: none;
  }
  .admin-sidebar .nav-item {
    justify-content: center;
    padding: 0.75rem;
  }
  .admin-main {
    margin-left: 70px;
  }
  .uploads-grid, .settings-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .admin-content-body {
    padding: 1.25rem;
  }
  .card-header {
    flex-direction: column;
    gap: 1rem;
  }
}