:root{--primary: #173B6C;--primary-dark: #0F2849;--bg: #F0F2F5;--border: #E4E6EB;--muted: #667781}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:#111}.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#173b6c,#2a5fa8)}.login{background:#fff;padding:36px;border-radius:12px;width:380px;box-shadow:0 20px 60px #0003}.login img{display:block;width:70px;margin:0 auto 12px;border-radius:14px}.login h1{text-align:center;color:var(--primary);margin:0 0 24px;font-size:20px}.login label{font-size:12px;color:var(--muted)}.login input{width:100%;padding:10px;border:1px solid var(--border);border-radius:8px;margin:4px 0 14px}.login button{width:100%;padding:12px;background:var(--primary);color:#fff;border:none;border-radius:8px;font-weight:600;cursor:pointer}.err{color:#c0392b;font-size:13px;margin-bottom:8px}.app{min-height:100vh}.topbar{background:var(--primary);color:#fff;padding:14px 24px;display:flex;align-items:center;gap:12px}.topbar img{width:36px;height:36px;border-radius:8px}.topbar h1{font-size:18px;margin:0;flex:1}.topbar button{background:#ffffff26;color:#fff;border:none;padding:8px 14px;border-radius:6px;cursor:pointer}.container{max-width:1100px;margin:32px auto;padding:0 24px}.card{background:#fff;border-radius:12px;padding:24px;box-shadow:0 1px 3px #0000000d;margin-bottom:24px}.card h2{margin:0 0 16px;color:var(--primary);font-size:18px}.row{display:grid;grid-template-columns:1fr 1fr 1fr 1fr;gap:12px;margin-bottom:12px}.row input,.row select{padding:10px;border:1px solid var(--border);border-radius:8px}.btn{background:var(--primary);color:#fff;border:none;padding:10px 16px;border-radius:8px;cursor:pointer;font-weight:500}.btn:hover{background:var(--primary-dark)}.btn.danger{background:#c0392b}.btn.ghost{background:transparent;color:var(--primary);border:1px solid var(--primary)}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:10px;border-bottom:1px solid var(--border);font-size:14px}th{background:#f8f9fa;color:var(--muted);font-weight:500}.tag{display:inline-block;padding:2px 8px;border-radius:10px;font-size:11px;font-weight:600}.tag.admin{background:#fef3c7;color:#92400e}.tag.user{background:#dbeafe;color:#1e40af}.tag.off{background:#fee2e2;color:#991b1b}.tag.on{background:#d1fae5;color:#065f46}