:root { --ink:#0f172a; --line:#e2e8f0; --brand:#1d4ed8; --bg:#f1f5f9; --card:#fff; }
* { box-sizing: border-box; }
body { margin:0; font-family: -apple-system, Segoe UI, Roboto, Arial, sans-serif; background: var(--bg); color: var(--ink); }
a { color: var(--brand); text-decoration:none; }
.admin-shell { display:flex; min-height:100vh; }
.admin-sidebar { width:230px; background: var(--ink); color:#cbd5e1; flex-shrink:0; padding: 18px 0; }
.admin-sidebar .brand { color:#fff; font-weight:800; font-size:16px; padding: 0 20px 18px; display:block; border-bottom:1px solid #1e293b; margin-bottom: 12px; }
.admin-sidebar a { display:block; padding: 10px 20px; font-size:14px; color:#cbd5e1; }
.admin-sidebar a:hover, .admin-sidebar a.active { background:#1e293b; color:#fff; }
.admin-sidebar .sidebar-foot { padding: 14px 20px; border-top:1px solid #1e293b; margin-top: 14px; font-size:13px; }
.admin-main { flex:1; min-width:0; }
.admin-topbar { background:#fff; border-bottom:1px solid var(--line); padding:14px 26px; display:flex; justify-content:space-between; align-items:center; }
.admin-content { padding: 26px; }

.card { background: var(--card); border:1px solid var(--line); border-radius:12px; padding:22px; margin-bottom: 20px; }
.card h2, .card h3 { margin-top:0; }
.grid-2 { display:grid; grid-template-columns:1fr 1fr; gap:20px; }
.grid-3 { display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }
.stat { background:#fff; border:1px solid var(--line); border-radius:12px; padding:20px; }
.stat .num { font-size:28px; font-weight:800; }
.stat .label { font-size:13px; color:#64748b; }
table.admin-table { width:100%; border-collapse:collapse; font-size:14px; }
table.admin-table th, table.admin-table td { text-align:left; padding:10px 8px; border-bottom:1px solid var(--line); vertical-align: middle; }
table.admin-table th { color:#64748b; font-weight:600; font-size:12px; text-transform:uppercase; letter-spacing:.4px; }
.thumb { width:44px; height:58px; object-fit:cover; border-radius:4px; background:#e2e8f0; }
.btn { display:inline-block; background:var(--brand); color:#fff; padding:9px 16px; border-radius:8px; font-size:13px; font-weight:600; border:0; cursor:pointer; }
.btn--sm { padding:6px 12px; font-size:12px; }
.btn--danger { background:#dc2626; }
.btn--ghost { background:transparent; color:var(--ink); border:1px solid var(--line); }
.form-group { margin-bottom:16px; }
.form-group label { display:block; font-size:13px; color:#475569; margin-bottom:6px; font-weight:600; }
.form-group input, .form-group select, .form-group textarea { width:100%; padding:9px 11px; border:1px solid var(--line); border-radius:8px; font-size:14px; font-family:inherit; }
.form-group .hint { font-size:12px; color:#94a3b8; margin-top:4px; }
.form-row { display:flex; gap:16px; }
.form-row .form-group { flex:1; }
.flash { padding:12px 16px; border-radius:8px; margin-bottom:18px; font-size:14px; }
.flash--success { background:#dcfce7; color:#166534; }
.flash--error { background:#fee2e2; color:#991b1b; }
.flash--info { background:#dbeafe; color:#1e3a8a; }
.badge { display:inline-block; padding:2px 9px; border-radius:999px; font-size:11px; font-weight:700; }
.badge--green { background:#dcfce7; color:#166534; }
.badge--gray { background:#e2e8f0; color:#475569; }
.badge--red { background:#fee2e2; color:#991b1b; }
.badge--amber { background:#fef9c3; color:#854d0e; }
.toolbar { display:flex; justify-content:space-between; align-items:center; margin-bottom:18px; gap: 12px; flex-wrap: wrap; }
.toolbar form { display:flex; gap:8px; }
.pill-link { padding:6px 12px; border:1px solid var(--line); border-radius:999px; font-size:13px; color:#475569; }
.pill-link.active { background:var(--ink); color:#fff; border-color:var(--ink); }
.progress-bar { height:8px; background:#e2e8f0; border-radius:6px; overflow:hidden; margin-top:10px; }
.progress-bar__fill { height:100%; background: var(--brand); width:0%; transition: width .2s; }
.login-shell { max-width:380px; margin:80px auto; background:#fff; border:1px solid var(--line); border-radius:14px; padding:32px; }

@media (max-width: 860px) {
  .admin-shell { flex-direction: column; }
  .admin-sidebar { width: 100%; display: flex; flex-wrap: wrap; align-items: center; padding: 10px 14px; }
  .admin-sidebar .brand { width: 100%; border-bottom: none; padding: 6px 6px 8px; margin-bottom: 4px; }
  .admin-sidebar a { display: inline-block; padding: 6px 10px; border-radius: 6px; }
  .admin-sidebar .sidebar-foot { width: 100%; border-top: 1px solid #1e293b; margin-top: 8px; padding: 8px 6px 4px; }
  .admin-content { padding: 16px; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  table.admin-table { display: block; overflow-x: auto; white-space: nowrap; }
  .login-shell { margin: 40px auto; width: 90%; }
}