/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* Variables */
:root {
  --sidebar-bg: #1e293b;
  --sidebar-text: #94a3b8;
  --sidebar-active: #3b82f6;
  --accent: #3b82f6;
  --danger: #ef4444;
  --success: #22c55e;
  --warning: #f59e0b;
  --bg: #f8fafc;
  --card-bg: #ffffff;
  --border: #e2e8f0;
  --text: #1e293b;
  --text-muted: #64748b;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
}

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

/* Sidebar */
.sidebar {
  width: 250px;
  background: var(--sidebar-bg);
  position: fixed;
  top: 0; left: 0; bottom: 0;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  z-index: 100;
}

.sidebar-logo {
  padding: 20px 20px 16px;
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.sidebar-nav { flex: 1; padding: 12px 0; }

.nav-section { margin-bottom: 4px; }

.nav-label {
  display: block;
  padding: 10px 20px 4px;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: #475569;
  text-transform: uppercase;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 20px;
  color: var(--sidebar-text);
  text-decoration: none;
  font-size: 14px;
  transition: background 0.15s, color 0.15s;
  border-left: 3px solid transparent;
}

.nav-link:hover { background: rgba(255,255,255,0.06); color: #e2e8f0; }
.nav-link.active { background: rgba(59,130,246,0.15); color: #93c5fd; border-left-color: var(--accent); }
.nav-link svg { opacity: 0.7; flex-shrink: 0; }

/* AI section */
.ai-section {
  background: rgba(59,130,246,0.06);
  border-left: 3px solid rgba(59,130,246,0.4);
  margin: 4px 8px;
  border-radius: 6px;
}
.ai-section .nav-label { color: #7dd3fc; }
.ai-section .nav-link { padding-left: 16px; border-left: none; }

.sidebar-footer {
  padding: 12px 0;
  border-top: 1px solid rgba(255,255,255,0.08);
}

/* Main content */
.main-content {
  margin-left: 250px;
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Topbar */
.topbar {
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
  height: 60px;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

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

.topbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.username {
  font-size: 14px;
  color: var(--text-muted);
  font-weight: 500;
}

/* Content area */
.content-area { padding: 24px; flex: 1; }

/* Cards */
.card {
  background: var(--card-bg);
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.07);
  border: 1px solid var(--border);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}

.card-header h2 { font-size: 15px; font-weight: 600; }

/* Stats row */
.stats-row {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.stat-card {
  background: var(--card-bg);
  border-radius: 8px;
  padding: 20px;
  flex: 1;
  min-width: 120px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.07);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
}

.stat-posts { border-left-color: #3b82f6; }
.stat-published { border-left-color: #22c55e; }
.stat-ai { border-left-color: #8b5cf6; }
.stat-draft { border-left-color: #f59e0b; }
.stat-categories { border-left-color: #14b8a6; }
.stat-tags { border-left-color: #ec4899; }
.stat-media { border-left-color: #6366f1; }

.stat-value { font-size: 28px; font-weight: 700; line-height: 1; }
.stat-label { font-size: 12px; color: var(--text-muted); margin-top: 6px; font-weight: 500; }

/* Dashboard row */
.dashboard-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 900px) { .dashboard-row { grid-template-columns: 1fr; } }
.dashboard-card { background: var(--card-bg); border-radius: 8px; border: 1px solid var(--border); box-shadow: 0 1px 3px rgba(0,0,0,0.07); }

/* Tables */
.table { width: 100%; border-collapse: collapse; }
.table th {
  background: #f8fafc;
  padding: 10px 16px;
  text-align: left;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--border);
}
.table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.table tr:last-child td { border-bottom: none; }
.table tbody tr:nth-child(odd) { background: #fafafa; }
.table tbody tr:hover { background: #f1f5f9; }

/* Toolbar */
.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 8px;
}

/* Forms */
.form-group { margin-bottom: 16px; }
.form-group label {
  display: block;
  margin-bottom: 5px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
}
.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  color: var(--text);
  background: #fff;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
  font-family: inherit;
}
.form-textarea { resize: vertical; min-height: 120px; }
.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.1);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 20px;
  align-items: start;
}
@media (max-width: 900px) { .form-grid { grid-template-columns: 1fr; } }

.form-main { display: flex; flex-direction: column; gap: 0; }
.form-sidebar { display: flex; flex-direction: column; gap: 0; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: background 0.15s, opacity 0.15s;
  line-height: 1;
}
.btn:disabled { opacity: 0.6; cursor: not-allowed; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #2563eb; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #dc2626; }
.btn-success { background: var(--success); color: #fff; }
.btn-secondary { background: #f1f5f9; color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { background: #e2e8f0; }
.btn-warning { background: #f59e0b; color: #fff; border-color: #d97706; }
.btn-warning:hover { background: #d97706; }
.btn-sm { padding: 5px 10px; font-size: 12px; }

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 9999px;
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
}
.badge-published { background: #dcfce7; color: #166534; }
.badge-draft { background: #f1f5f9; color: #475569; }
.badge-archived { background: #fef3c7; color: #92400e; }
.badge-ai { background: #f5f3ff; color: #7c3aed; }
.badge-danger { background: #fef2f2; color: #dc2626; }

/* Job status badges */
.badge-job-pending { background: #f1f5f9; color: #475569; }
.badge-job-running { background: #dbeafe; color: #1d4ed8; }
.badge-job-completed { background: #dcfce7; color: #166534; }
.badge-job-failed { background: #fef2f2; color: #dc2626; }

/* Spinner */
.spinner {
  display: inline-block;
  width: 12px;
  height: 12px;
  border: 2px solid currentColor;
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  vertical-align: middle;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Flash messages */
.flash {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-radius: 6px;
  margin-bottom: 16px;
  font-size: 14px;
  font-weight: 500;
}
.flash-success { background: #f0fdf4; color: #166534; border: 1px solid #bbf7d0; }
.flash-error { background: #fef2f2; color: #dc2626; border: 1px solid #fecaca; }
.flash-close {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 18px;
  color: inherit;
  opacity: 0.7;
  padding: 0 4px;
}

/* Media grid */
.media-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 16px;
}
.media-item {
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.media-preview {
  width: 100%;
  height: 120px;
  background: #f8fafc;
  overflow: hidden;
}
.media-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.media-info {
  padding: 8px;
  border-top: 1px solid var(--border);
}
.media-name {
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.media-meta { font-size: 11px; color: var(--text-muted); margin-top: 2px; }
.media-actions {
  padding: 6px 8px;
  display: flex;
  gap: 4px;
  background: #f8fafc;
  border-top: 1px solid var(--border);
}

/* Theme cards */
.theme-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}
.theme-card {
  background: var(--card-bg);
  border-radius: 8px;
  border: 2px solid var(--border);
  overflow: hidden;
}
.theme-active { border-color: var(--accent); }
.theme-thumb { height: 160px; background: #f1f5f9; overflow: hidden; }
.theme-thumb img { width: 100%; height: 100%; object-fit: cover; }
.theme-thumb-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  font-size: 24px;
  font-weight: 700;
  color: #cbd5e1;
}
.theme-info { padding: 16px; }
.theme-info h3 { font-size: 15px; font-weight: 600; }

/* Tag list */
.tag-list { display: flex; flex-wrap: wrap; gap: 8px; }
.tag-item { display: flex; align-items: center; gap: 4px; }
.tag-badge {
  background: #eff6ff;
  color: #1d4ed8;
  padding: 4px 12px;
  border-radius: 9999px;
  font-size: 13px;
  font-weight: 500;
}
.tag-delete {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 16px;
  line-height: 1;
  padding: 2px;
}
.tag-delete:hover { color: var(--danger); }

.tag-checkboxes { display: flex; flex-direction: column; gap: 6px; }
.tag-checkbox {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  cursor: pointer;
}

/* Pagination */
.pagination {
  display: flex;
  gap: 6px;
  justify-content: center;
  margin: 24px 0;
  flex-wrap: wrap;
}
.page-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  text-decoration: none;
  color: var(--text);
  transition: background 0.15s;
}
.page-link:hover { background: #f1f5f9; }
.page-link.active { background: var(--accent); color: #fff; border-color: var(--accent); }

/* Accordion */
.accordion { border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.accordion-item { border-bottom: 1px solid var(--border); }
.accordion-item:last-child { border-bottom: none; }
.accordion-header {
  width: 100%;
  padding: 14px 16px;
  background: #f8fafc;
  border: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
  font-weight: 500;
  text-align: left;
}
.accordion-header:hover { background: #f1f5f9; }
.accordion-body { display: none; padding: 16px; }
.accordion-body.open { display: block; }
.accordion-icon { font-size: 12px; color: var(--text-muted); }

/* Topic tags */
.topic-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.topic-tag {
  background: #eff6ff;
  color: #1d4ed8;
  padding: 3px 10px;
  border-radius: 9999px;
  font-size: 12px;
}

/* Post form */
.post-form .form-textarea { min-height: 500px; font-family: 'Courier New', monospace; font-size: 13px; }

code { font-family: 'Courier New', monospace; background: #f1f5f9; padding: 1px 5px; border-radius: 3px; font-size: 12px; }