body { background: #f6f7fb; }
.sidebar { min-height: 100vh; background: #111827; }
.sidebar a { color: #d1d5db; text-decoration: none; display: block; padding: .65rem .85rem; border-radius: .5rem; }
.sidebar a:hover, .sidebar a.active { background: #1f2937; color: #fff; }
.stat-card { border: 0; border-radius: .5rem; box-shadow: 0 10px 30px rgba(17,24,39,.06); }
.badge-soft { background: #eef2ff; color: #3730a3; }
.table td, .table th { vertical-align: middle; }
.ad-preview { border-left: 4px solid #2563eb; background: #fff; }