:root {
  --admin-sidebar-bg: #1c2333;
  --admin-sidebar-text: #aeb4c4;
  --admin-sidebar-text-active: #ffffff;
  --admin-sidebar-hover: #2a3348;
  --admin-accent: #2563eb;
  --admin-accent-hover: #1d4ed8;
  --admin-accent-soft: #dbeafe;
  --admin-bg: #f4f5f7;
  --admin-surface: #ffffff;
  --admin-border: #e2e5ea;
  --admin-text: #111827;
  --admin-text-secondary: #374151;
  --admin-text-muted: #6b7280;
  --admin-success-bg: #dcfce7;
  --admin-success-text: #16a34a;
  --admin-warning-bg: #fef3c7;
  --admin-warning-text: #b45309;
  --admin-danger-bg: #fee2e2;
  --admin-danger-text: #dc2626;
  --admin-pending-badge-bg: #f59e0b;
  --admin-font: "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body.admin-body {
  background: var(--admin-bg);
  color: var(--admin-text);
  font-family: var(--admin-font);
  margin: 0;
}

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

/* ---------- Sidebar ---------- */

.admin-sidebar {
  width: 240px;
  flex: 0 0 240px;
  background: var(--admin-sidebar-bg);
  color: var(--admin-sidebar-text);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
}

.admin-sidebar-brand {
  padding: 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.admin-sidebar-brand-title {
  color: #ffffff;
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.02em;
}

.admin-sidebar-brand-subtitle {
  font-size: 12px;
  color: var(--admin-sidebar-text);
  margin-top: 2px;
}

.admin-nav {
  flex: 1 1 auto;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  overflow-y: auto;
}

.admin-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 10px 12px;
  border-radius: 6px;
  color: var(--admin-sidebar-text);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
}

.admin-nav-link:hover {
  background: var(--admin-sidebar-hover);
  color: #ffffff;
}

.admin-nav-link.active {
  background: var(--admin-accent);
  color: #ffffff;
}

.admin-nav-badge {
  background: var(--admin-pending-badge-bg);
  color: #ffffff;
  font-size: 11px;
  font-weight: 700;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.admin-sidebar-footer {
  padding: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.admin-sidebar-footer .admin-nav-link,
.admin-sidebar-footer button.admin-nav-link {
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  cursor: pointer;
  font: inherit;
}

/* ---------- Main / Topbar ---------- */

.admin-main {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.admin-topbar {
  height: 64px;
  background: var(--admin-surface);
  border-bottom: 1px solid var(--admin-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 10;
}

.admin-topbar-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--admin-text);
}

.admin-topbar-user {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--admin-text-secondary);
}

.admin-avatar {
  width: 32px;
  height: 32px;
  border-radius: 999px;
  background: var(--admin-accent-soft);
  color: var(--admin-accent-hover);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 13px;
}

.admin-content {
  padding: 24px;
  flex: 1 1 auto;
}

/* ---------- Cards / surfaces ---------- */

.admin-card {
  background: var(--admin-surface);
  border: 1px solid var(--admin-border);
  border-radius: 10px;
  padding: 20px;
}

.admin-card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--admin-text);
  margin-bottom: 14px;
}

.admin-stat-card {
  background: var(--admin-surface);
  border: 1px solid var(--admin-border);
  border-radius: 10px;
  padding: 18px 20px;
}

.admin-stat-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--admin-text);
  line-height: 1.1;
}

.admin-stat-label {
  font-size: 13px;
  color: var(--admin-text-muted);
  margin-top: 4px;
}

/* ---------- Tabs ---------- */

.admin-tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--admin-border);
  margin-bottom: 16px;
}

.admin-tab {
  padding: 10px 14px;
  font-size: 14px;
  font-weight: 500;
  color: var(--admin-text-muted);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.admin-tab:hover {
  color: var(--admin-text);
}

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

.admin-tab-count {
  background: var(--admin-bg);
  color: var(--admin-text-muted);
  font-size: 11px;
  font-weight: 700;
  padding: 1px 7px;
  border-radius: 999px;
}

.admin-tab.active .admin-tab-count {
  background: var(--admin-accent-soft);
  color: var(--admin-accent-hover);
}

/* ---------- Table ---------- */

.admin-table-wrap {
  background: var(--admin-surface);
  border: 1px solid var(--admin-border);
  border-radius: 10px;
  overflow: hidden;
}

table.admin-table {
  width: 100%;
  margin-bottom: 0;
  font-size: 14px;
}

table.admin-table thead th {
  background: var(--admin-bg);
  color: var(--admin-text-muted);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  border-bottom: 1px solid var(--admin-border);
  padding: 10px 16px;
}

table.admin-table tbody td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--admin-border);
  vertical-align: middle;
  color: var(--admin-text-secondary);
}

table.admin-table tbody tr:last-child td {
  border-bottom: none;
}

/* ---------- Badges ---------- */

.admin-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}

.admin-badge-success {
  background: var(--admin-success-bg);
  color: var(--admin-success-text);
}

.admin-badge-warning {
  background: var(--admin-warning-bg);
  color: var(--admin-warning-text);
}

.admin-badge-danger {
  background: var(--admin-danger-bg);
  color: var(--admin-danger-text);
}

/* ---------- Buttons ---------- */

.admin-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
}

.admin-btn-primary {
  background: var(--admin-accent);
  color: #ffffff;
}

.admin-btn-primary:hover {
  background: var(--admin-accent-hover);
  color: #ffffff;
}

.admin-btn-outline {
  background: var(--admin-surface);
  border-color: var(--admin-border);
  color: var(--admin-text-secondary);
}

.admin-btn-outline:hover {
  background: var(--admin-bg);
  color: var(--admin-text);
}

.admin-btn-danger-outline {
  background: var(--admin-surface);
  border-color: var(--admin-border);
  color: var(--admin-danger-text);
}

.admin-btn-danger-outline:hover {
  background: var(--admin-danger-bg);
}

.admin-btn-sm {
  padding: 5px 10px;
  font-size: 13px;
}

/* ---------- Forms ---------- */

.admin-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--admin-text-secondary);
  margin-bottom: 6px;
}

.admin-input,
.admin-select,
.admin-textarea {
  width: 100%;
  border: 1px solid var(--admin-border);
  border-radius: 6px;
  padding: 8px 12px;
  font-size: 14px;
  font-family: var(--admin-font);
  color: var(--admin-text);
  background: var(--admin-surface);
}

.admin-input:focus,
.admin-select:focus,
.admin-textarea:focus {
  outline: none;
  border-color: var(--admin-accent);
  box-shadow: 0 0 0 3px var(--admin-accent-soft);
}

.admin-search-input {
  max-width: 280px;
}

/* ---------- Article image boxes ---------- */

.admin-image-box {
  border: 1px solid var(--admin-border);
  border-radius: 8px;
  padding: 14px;
  background: var(--admin-surface);
}

.admin-cover-preview {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 6px;
  border: 1px solid var(--admin-border);
  display: block;
  margin-bottom: 10px;
}

.admin-gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(84px, 1fr));
  gap: 8px;
}

.admin-gallery-thumb {
  position: relative;
}

.admin-gallery-thumb img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 6px;
  border: 1px solid var(--admin-border);
}

.admin-gallery-delete {
  position: absolute;
  top: -6px;
  right: -6px;
  width: 20px;
  height: 20px;
  border-radius: 999px;
  background: var(--admin-danger-text);
  color: #fff;
  border: none;
  font-size: 12px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

/* ---------- Author photo ---------- */

.admin-photo-circle {
  width: 72px;
  height: 72px;
  border-radius: 999px;
  object-fit: cover;
  border: 1px solid var(--admin-border);
  background: var(--admin-bg);
}

.admin-photo-thumb-sm {
  width: 32px;
  height: 32px;
  border-radius: 999px;
  object-fit: cover;
  border: 1px solid var(--admin-border);
}

/* ---------- Login page ---------- */

body.admin-login-body {
  background: var(--admin-bg);
  color: var(--admin-text);
  font-family: var(--admin-font);
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.admin-login-card {
  width: 100%;
  max-width: 380px;
  background: var(--admin-surface);
  border: 1px solid var(--admin-border);
  border-radius: 12px;
  padding: 32px;
  box-shadow: 0 8px 24px rgba(17, 24, 39, 0.06);
}

.admin-login-brand {
  text-align: center;
  margin-bottom: 24px;
}

.admin-login-brand-title {
  font-weight: 700;
  font-size: 20px;
  color: var(--admin-text);
}

.admin-login-brand-subtitle {
  font-size: 13px;
  color: var(--admin-text-muted);
  margin-top: 2px;
}

/* ---------- Pagination ---------- */

.admin-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  margin-top: 16px;
}

.admin-page-link {
  min-width: 32px;
  height: 32px;
  padding: 0 8px;
  border-radius: 6px;
  border: 1px solid var(--admin-border);
  background: var(--admin-surface);
  color: var(--admin-text-secondary);
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.admin-page-link:hover {
  background: var(--admin-bg);
  color: var(--admin-text);
}

.admin-page-link.active {
  background: var(--admin-accent);
  border-color: var(--admin-accent);
  color: #ffffff;
}

.admin-page-link.disabled {
  opacity: 0.4;
  pointer-events: none;
}

/* ---------- Utility ---------- */

.admin-text-muted {
  color: var(--admin-text-muted);
}

.admin-empty {
  padding: 32px;
  text-align: center;
  color: var(--admin-text-muted);
  font-size: 14px;
}