body{
  margin:0;
  font-family:Arial,sans-serif;
  background:#f6f7fb;
  color:#1f2937
}
.container{max-width:1280px;margin:0 auto;padding:20px}
.site-header{background:#fff;border-bottom:1px solid #e5e7eb;position:sticky;top:0;z-index:100}
.nav-wrap{display:flex;justify-content:space-between;align-items:center;gap:20px}
.nav-wrap nav a{margin-left:14px;color:#111827;text-decoration:none}
.logo{font-size:24px;font-weight:700;text-decoration:none;color:#b91c1c}
.video-grid{display:grid;gap:16px}
.video-grid.cols-5{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.video-grid.cols-4{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.video-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 8px 24px rgba(0,0,0,.06)}
.video-card img{width:100%;display:block;aspect-ratio:16/9;object-fit:cover;background:#e5e7eb}
.video-card h3{font-size:16px;margin:12px;line-height:1.4}
.video-card p{margin:0 12px 12px;color:#6b7280}
.section-head{display:flex;justify-content:space-between;align-items:center}
.section-block,.hero-grid,.video-detail,.related-videos,.card{margin:24px 0}
.card{background:#fff;padding:20px;border-radius:12px;box-shadow:0 8px 24px rgba(0,0,0,.05)}
.admin-layout{display:grid;grid-template-columns:260px 1fr;min-height:100vh}
.sidebar{background:#111827;color:#fff;padding:24px}
.sidebar h2{margin-top:0}
.sidebar ul{padding-left:18px}
.sidebar a{color:#fff;text-decoration:none}
.content{padding:24px}
.form-grid textarea,.form-grid input,.form-grid select,.form-grid button,.toolbar input,.toolbar button{
  width:100%;padding:12px;margin-top:6px;margin-bottom:18px;border:1px solid #d1d5db;border-radius:8px;box-sizing:border-box
}
.toolbar{display:flex;gap:10px;align-items:flex-end}
.toolbar input{margin:0}
.toolbar button{width:auto;margin:0}
.checkbox-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.table{width:100%;border-collapse:collapse;background:#fff;border-radius:12px;overflow:hidden}
.table th,.table td{padding:12px;border-bottom:1px solid #e5e7eb;text-align:left}
.notice.success{background:#dcfce7;color:#166534;padding:12px;border-radius:8px}
.notice.error{background:#fee2e2;color:#991b1b;padding:12px;border-radius:8px}
.ad-slot{margin:20px 0;background:#fff;padding:10px;border-radius:8px}
.breadcrumbs{margin:16px 0;color:#6b7280}
.video-meta{display:flex;gap:16px;flex-wrap:wrap;color:#6b7280;margin-bottom:16px}
.video-player iframe{border-radius:12px;background:#000}
.dashboard-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}
.metric-card{background:#fff;padding:20px;border-radius:12px;box-shadow:0 8px 24px rgba(0,0,0,.05)}
.login-wrap{min-height:100vh;display:grid;place-items:center;padding:20px}
.login-card{background:#fff;padding:24px;border-radius:12px;box-shadow:0 8px 24px rgba(0,0,0,.08);max-width:460px;width:100%}
@media (max-width:900px){
  .admin-layout{grid-template-columns:1fr}
  .sidebar{position:static}
}

.two-col{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:16px}
.compact-list{padding-left:18px}
.button-link,button{display:inline-block;background:#b91c1c;color:#fff;border:none;padding:10px 14px;border-radius:8px;text-decoration:none;cursor:pointer}
button{width:auto}
.toolbar.wrap{flex-wrap:wrap}
.pagination{display:flex;gap:8px;flex-wrap:wrap;margin:20px 0}
.pagination a{padding:8px 12px;background:#fff;border-radius:8px;text-decoration:none;color:#111827}
.pagination a.active{background:#b91c1c;color:#fff}
small{color:#6b7280}