:root{
  --primary:#4f46e5;--primary-600:#4338ca;--primary-soft:#eef2ff;
  --bg:#f5f6fa;--surface:#ffffff;--border:#e5e7eb;--text:#111827;--muted:#6b7280;
  --danger:#dc2626;--success:#16a34a;--warning:#d97706;--info:#2563eb;
  --radius:12px;--shadow:0 1px 3px rgba(0,0,0,.08);--shadow-lg:0 8px 30px rgba(0,0,0,.12);
  --sidebar-w:248px;--topbar-h:60px;
}
[data-theme="dark"]{
  --bg:#0f1420;--surface:#181e2b;--border:#2a3343;--text:#e5e7eb;--muted:#9aa4b2;
  --primary-soft:#1e2435;--shadow:0 1px 3px rgba(0,0,0,.4);--shadow-lg:0 8px 30px rgba(0,0,0,.5);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);font-size:14px;line-height:1.5}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{margin:0 0 8px;font-weight:600}
.muted{color:var(--muted)}

.layout{display:flex;min-height:100vh}
.sidebar{width:var(--sidebar-w);background:var(--surface);border-right:1px solid var(--border);position:fixed;top:0;bottom:0;left:0;display:flex;flex-direction:column;z-index:40;transition:transform .2s}
.sidebar .brand{height:var(--topbar-h);display:flex;align-items:center;gap:10px;padding:0 20px;border-bottom:1px solid var(--border);font-weight:700;font-size:15px}
.sidebar .brand .logo{width:30px;height:30px;border-radius:8px;background:linear-gradient(135deg,var(--primary),#7c3aed);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800}
.sidebar nav{flex:1;overflow-y:auto;padding:12px}
.sidebar .nav-group{margin-bottom:14px}
.sidebar .nav-title{font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);padding:8px 12px}
.sidebar a.item{display:flex;align-items:center;gap:10px;padding:8px 12px;border-radius:8px;color:var(--text);font-weight:500;margin-bottom:2px}
.sidebar a.item:hover{background:var(--primary-soft);text-decoration:none}
.sidebar a.item.active{background:var(--primary);color:#fff}
.sidebar a.item .ic{width:18px;text-align:center;opacity:.9}
.main{margin-left:var(--sidebar-w);flex:1;display:flex;flex-direction:column;min-width:0}
.topbar{height:var(--topbar-h);background:var(--surface);border-bottom:1px solid var(--border);display:flex;align-items:center;gap:12px;padding:0 24px;position:sticky;top:0;z-index:30}
.content{padding:24px;flex:1}
.topbar .search{flex:1;max-width:420px;position:relative}
.topbar .search input{width:100%;padding:9px 14px 9px 34px;border:1px solid var(--border);border-radius:8px;background:var(--bg);color:var(--text)}
.topbar .spacer{flex:1}

.grid{display:grid;gap:16px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
@media(max-width:1100px){.grid-4{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow)}
.card .stat-label{color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.04em}
.card .stat-value{font-size:26px;font-weight:700;margin-top:6px}
.card .stat-delta{font-size:12px;margin-top:4px}
.card h3{font-size:15px;margin-bottom:12px}

.table-wrap{overflow-x:auto;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}
table{width:100%;border-collapse:collapse;min-width:560px}
th,td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--border);font-size:13px}
th{background:var(--bg);color:var(--muted);font-weight:600;text-transform:uppercase;font-size:11px;letter-spacing:.04em}
tr:last-child td{border-bottom:none}
tbody tr:hover{background:var(--primary-soft)}

.badge{display:inline-block;padding:3px 9px;border-radius:99px;font-size:11px;font-weight:600}
.badge.green{background:#dcfce7;color:#166534}
.badge.red{background:#fee2e2;color:#991b1b}
.badge.amber{background:#fef3c7;color:#92400e}
.badge.blue{background:#dbeafe;color:#1e40af}
.badge.gray{background:#e5e7eb;color:#374151}
[data-theme="dark"] .badge.green{background:#14532d;color:#86efac}
[data-theme="dark"] .badge.red{background:#7f1d1d;color:#fca5a5}
[data-theme="dark"] .badge.amber{background:#78350f;color:#fcd34d}
[data-theme="dark"] .badge.blue{background:#1e3a8a;color:#93c5fd}
[data-theme="dark"] .badge.gray{background:#374151;color:#d1d5db}

.form-group{margin-bottom:16px}
label{display:block;font-weight:600;margin-bottom:6px;font-size:13px}
input,select,textarea{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;background:var(--surface);color:var(--text);font-size:14px;font-family:inherit}
textarea{min-height:90px}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(79,70,229,.15)}
.form-actions{display:flex;gap:10px;margin-top:20px}
.hint{font-size:12px;color:var(--muted);margin-top:4px}
.error-text{color:var(--danger);font-size:12px;margin-top:4px}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:9px 16px;border-radius:8px;border:1px solid transparent;font-weight:600;font-size:13px;cursor:pointer;background:var(--surface);color:var(--text);border-color:var(--border);text-decoration:none}
.btn:hover{text-decoration:none;background:var(--bg)}
.btn.primary{background:var(--primary);border-color:var(--primary);color:#fff}
.btn.primary:hover{background:var(--primary-600)}
.btn.danger{background:var(--danger);border-color:var(--danger);color:#fff}
.btn.sm{padding:5px 10px;font-size:12px}
.btn.block{width:100%}
.btn.ghost{background:transparent;border-color:transparent;color:var(--muted)}
.alert{padding:12px 16px;border-radius:8px;margin-bottom:16px;font-size:13px;border:1px solid}
.alert.success{background:#f0fdf4;border-color:#bbf7d0;color:#166534}
.alert.error{background:#fef2f2;border-color:#fecaca;color:#991b1b}
.alert.info{background:#eff6ff;border-color:#bfdbfe;color:#1e40af}
[data-theme="dark"] .alert.success{background:#052e16;border-color:#14532d;color:#86efac}
[data-theme="dark"] .alert.error{background:#450a0a;border-color:#7f1d1d;color:#fca5a5}
[data-theme="dark"] .alert.info{background:#172554;border-color:#1e3a8a;color:#93c5fd}

.pagination{display:flex;gap:6px;margin-top:16px;flex-wrap:wrap}
.pagination a.page{padding:7px 12px;border:1px solid var(--border);border-radius:8px;background:var(--surface);color:var(--text)}
.pagination a.active{background:var(--primary);color:#fff;border-color:var(--primary)}

.toolbar{display:flex;align-items:center;gap:10px;margin-bottom:18px;flex-wrap:wrap}
.toolbar h2{margin:0;font-size:18px}
.toolbar .spacer{flex:1}
.toolbar input[type=search],.toolbar select{width:auto}

.page-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;flex-wrap:wrap;gap:10px}
.page-head h1{margin:0;font-size:20px}

.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#eef2ff,#f5f3ff);padding:20px}
[data-theme="dark"] .auth-wrap{background:#0b0f19}
.auth-card{width:100%;max-width:400px;background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:32px;box-shadow:var(--shadow-lg)}
.auth-card .brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;margin-bottom:20px;justify-content:center}
.auth-card .brand .logo{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,var(--primary),#7c3aed);color:#fff;display:flex;align-items:center;justify-content:center}

.grid-media{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:14px}
.media-card{border:1px solid var(--border);border-radius:10px;overflow:hidden;background:var(--surface)}
.media-card img,.media-card .thumb{width:100%;height:110px;object-fit:cover;background:var(--bg);display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:28px}
.media-card .m-body{padding:8px 10px;font-size:12px}
.avatar{width:34px;height:34px;border-radius:50%;background:var(--primary-soft);color:var(--primary);display:inline-flex;align-items:center;justify-content:center;font-weight:700}
.dropdown{position:relative}
.dropdown-menu{position:absolute;right:0;top:calc(100% + 6px);background:var(--surface);border:1px solid var(--border);border-radius:10px;box-shadow:var(--shadow-lg);min-width:200px;display:none;z-index:50}
.dropdown.open .dropdown-menu{display:block}
.dropdown-menu a,.dropdown-menu button{display:block;width:100%;text-align:left;padding:10px 14px;background:none;border:none;color:var(--text);font-size:13px;cursor:pointer}
.dropdown-menu a:hover,.dropdown-menu button:hover{background:var(--primary-soft);text-decoration:none}

.mobile-toggle{display:none;background:none;border:none;color:var(--text);font-size:22px;cursor:pointer}
@media(max-width:900px){
  .sidebar{transform:translateX(-100%)}
  .sidebar.open{transform:translateX(0)}
  .main{margin-left:0}
  .mobile-toggle{display:block}
}
.notif-dot{position:absolute;top:2px;right:2px;width:8px;height:8px;border-radius:50%;background:var(--danger)}
.empty{padding:40px;text-align:center;color:var(--muted)}
.stat-row{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px solid var(--border);font-size:13px}
.stat-row:last-child{border-bottom:none}
.chart-box{width:100%;height:260px;position:relative}
canvas{max-width:100%}