:root{--bg: #0f172a;--surface: #ffffff;--surface-2: #f1f5f9;--border: #e2e8f0;--text: #0f172a;--muted: #64748b;--primary: #2563eb;--primary-hover: #1d4ed8;--danger: #dc2626;--danger-hover: #b91c1c;--success: #16a34a;--radius: 10px;--shadow: 0 1px 3px rgba(0, 0, 0, .08), 0 1px 2px rgba(0, 0, 0, .04)}*{box-sizing:border-box}html,body{margin:0;padding:0;height:100%;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--text);background:var(--surface-2)}h1,h2,h3{margin:0 0 .5rem}button{font:inherit;cursor:pointer;border:1px solid transparent;border-radius:var(--radius);padding:.7rem 1.1rem;min-height:44px;background:var(--surface-2);color:var(--text);transition:background .15s ease;touch-action:manipulation}button:hover{background:var(--border)}button.primary{background:var(--primary);color:#fff}button.primary:hover{background:var(--primary-hover)}button.danger{background:var(--danger);color:#fff}button.danger:hover{background:var(--danger-hover)}button.ghost{background:transparent;border-color:var(--border)}button:disabled{opacity:.5;cursor:not-allowed}button.small{padding:.5rem .75rem;min-height:40px;font-size:.9rem}label{display:block;font-size:.85rem;color:var(--muted);margin-bottom:.25rem}input[type=text],input[type=password],input[type=email],input[type=number],select,textarea{width:100%;padding:.65rem .75rem;min-height:44px;border:1px solid var(--border);border-radius:var(--radius);font:inherit;font-size:16px;background:#fff;color:var(--text)}input[type=checkbox]{width:22px;height:22px}input:focus,select:focus,textarea:focus{outline:2px solid var(--primary);outline-offset:-1px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:1.25rem}table{width:100%;border-collapse:collapse;background:var(--surface);border-radius:var(--radius);overflow:hidden}th,td{text-align:left;padding:.7rem .9rem;border-bottom:1px solid var(--border)}th{background:var(--surface-2);font-size:.8rem;text-transform:uppercase;letter-spacing:.03em;color:var(--muted)}tbody tr:hover{background:var(--surface-2)}.badge{display:inline-block;padding:.15rem .55rem;border-radius:999px;font-size:.75rem;font-weight:600}.badge.admin{background:#ede9fe;color:#6d28d9}.badge.user{background:#e0f2fe;color:#0369a1}.badge.on{background:#dcfce7;color:#15803d}.badge.off{background:#fee2e2;color:#b91c1c}.row{display:flex;gap:.75rem;align-items:center}.grid{display:grid;gap:.9rem}.error{color:var(--danger);font-size:.9rem}.muted{color:var(--muted)}.spacer{flex:1}.table-wrap{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;border-radius:var(--radius)}.table-wrap table{min-width:560px}.overlay{position:fixed;inset:0;background:#0f172a8c;display:grid;place-items:center;padding:1rem;z-index:50}.modal{width:100%;max-width:480px;max-height:92vh;overflow-y:auto}@media(max-width:820px){.content{padding:1rem!important}h2{font-size:1.25rem}th,td{padding:.85rem .7rem}}@media(max-width:520px){.table-wrap table{min-width:480px}}