:root{--bg:#0b0f17;--bg-elevated:#121826;--bg-card:#161e2e;--bg-hover:#1c2640;--border:#243049;--border-strong:#31405f;--text:#e8eef8;--text-muted:#8b9bb4;--text-dim:#6a7a94;--accent:#3b82f6;--accent-hover:#2563eb;--accent-soft:#3b82f626;--success:#22c55e;--success-soft:#22c55e26;--danger:#ef4444;--danger-soft:#ef444426;--warn:#f59e0b;--radius:12px;--radius-sm:8px;--shadow:0 8px 30px #00000059;--sidebar-w:220px;--font:"Segoe UI", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;--mono:ui-monospace, "SF Mono", Consolas, monospace}*{box-sizing:border-box}html,body,#root{height:100%}body{font-family:var(--font);color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;margin:0;line-height:1.5}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}button,input,select,textarea{font:inherit;color:inherit}.shell{grid-template-columns:var(--sidebar-w) 1fr;min-height:100%;display:grid}.sidebar{background:var(--bg-elevated);border-right:1px solid var(--border);flex-direction:column;gap:8px;height:100vh;padding:20px 14px;display:flex;position:sticky;top:0}.brand{border-bottom:1px solid var(--border);align-items:center;gap:10px;margin-bottom:8px;padding:6px 10px 18px;display:flex}.brand-mark{color:#fff;background:linear-gradient(135deg,#3b82f6,#06b6d4);border-radius:9px;place-items:center;width:32px;height:32px;font-size:14px;font-weight:800;display:grid;box-shadow:0 0 20px #3b82f666}.brand-text{letter-spacing:.02em;font-weight:700}.brand-sub{color:var(--text-dim);font-size:11px}.nav-link{border-radius:var(--radius-sm);color:var(--text-muted);align-items:center;gap:10px;padding:10px 12px;text-decoration:none;transition:background .15s,color .15s;display:flex}.nav-link:hover{background:var(--bg-hover);color:var(--text);text-decoration:none}.nav-link.active{background:var(--accent-soft);color:#93c5fd;font-weight:600}.nav-spacer{flex:1}.sidebar-foot{color:var(--text-dim);padding:8px 10px;font-size:12px}.topbar{border-bottom:1px solid var(--border);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:10;background:#0b0f17d9;justify-content:space-between;align-items:center;padding:16px 24px;display:flex;position:sticky;top:0}.topbar h1{margin:0;font-size:18px;font-weight:650}.topbar-actions{align-items:center;gap:8px;display:flex}.content{max-width:1100px;padding:24px}.auth-wrap{background:radial-gradient(ellipse at 20% 10%, #3b82f62e, transparent 50%), radial-gradient(ellipse at 80% 90%, #06b6d41f, transparent 45%), var(--bg);place-items:center;min-height:100%;padding:24px;display:grid}.auth-card{background:var(--bg-card);border:1px solid var(--border);width:100%;max-width:400px;box-shadow:var(--shadow);border-radius:16px;padding:32px 28px}.auth-card h1{margin:0 0 4px;font-size:22px}.auth-card .lead{color:var(--text-muted);margin:0 0 20px;font-size:14px}label{color:var(--text-muted);margin-top:12px;font-size:13px;display:block}input,select,textarea{border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--bg);width:100%;color:var(--text);outline:none;margin-top:6px;padding:10px 12px;transition:border-color .15s}input:focus,select:focus,textarea:focus{border-color:var(--accent)}.btn{border-radius:var(--radius-sm);cursor:pointer;background:var(--accent);color:#fff;border:none;justify-content:center;align-items:center;gap:6px;padding:9px 14px;font-size:14px;font-weight:600;transition:background .15s,opacity .15s;display:inline-flex}.btn:hover{background:var(--accent-hover)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-ghost{border:1px solid var(--border);color:var(--text-muted);background:0 0}.btn-ghost:hover{background:var(--bg-hover);color:var(--text)}.btn-danger{background:var(--danger)}.btn-danger:hover{background:#dc2626}.btn-sm{padding:6px 10px;font-size:13px}.btn-block{width:100%;margin-top:16px}.stats{grid-template-columns:repeat(3,1fr);gap:14px;margin-bottom:22px;display:grid}.stat-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:16px 18px}.stat-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em;font-size:12px}.stat-value{margin-top:4px;font-size:28px;font-weight:700}.stat-hint{color:var(--text-dim);margin-top:4px;font-size:12px}.panel{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:18px;padding:18px}.panel-head{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-bottom:14px;display:flex}.panel-head h2{margin:0;font-size:16px}.device-grid{grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:14px;display:grid}.device-card{background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius);flex-direction:column;gap:10px;padding:16px;display:flex}.device-card-top{justify-content:space-between;align-items:flex-start;gap:8px;display:flex}.device-name{font-size:15px;font-weight:650}.device-id{font-family:var(--mono);color:var(--text-dim);word-break:break-all;font-size:11px}.device-actions{flex-wrap:wrap;gap:6px;margin-top:auto;display:flex}.dot{align-items:center;gap:6px;font-size:12px;font-weight:600;display:inline-flex}.dot:before{content:"";background:var(--text-dim);border-radius:50%;width:8px;height:8px}.dot.on{color:var(--success)}.dot.on:before{background:var(--success);box-shadow:0 0 8px var(--success)}.dot.off{color:var(--text-muted)}table.data{border-collapse:collapse;width:100%;font-size:14px}table.data th,table.data td{text-align:left;border-bottom:1px solid var(--border);padding:11px 10px}table.data th{color:var(--text-muted);text-transform:uppercase;letter-spacing:.03em;font-size:12px;font-weight:600}table.data tr:hover td{background:#ffffff05}.row-form{flex-wrap:wrap;align-items:flex-end;gap:8px;display:flex}.row-form>*{flex:1;min-width:120px}.row-form .btn{flex:0;align-self:flex-end;width:auto;margin-top:0}.grid-form{grid-template-columns:repeat(2,1fr);gap:12px;display:grid}.grid-form .full{grid-column:1/-1}.notice{background:var(--success-soft);border-radius:var(--radius-sm);border:1px solid #22c55e59;margin:12px 0;padding:14px}.notice code{font-family:var(--mono);word-break:break-all;color:#bbf7d0;margin:6px 0;font-size:12px;display:block}.error{color:#fca5a5;background:var(--danger-soft);border-radius:var(--radius-sm);white-space:pre-wrap;border:1px solid #ef44444d;margin:10px 0;padding:10px 12px;font-size:13px}.empty{text-align:center;color:var(--text-muted);border:1px dashed var(--border);border-radius:var(--radius);padding:40px 20px}.empty h3{color:var(--text);margin:0 0 8px}.muted{color:var(--text-muted)}.tiny{color:var(--text-dim);font-size:11px}.loading{color:var(--text-muted);text-align:center;padding:24px}.modal-backdrop{z-index:100;background:#0000008c;place-items:center;padding:16px;display:grid;position:fixed;inset:0}.modal{background:var(--bg-card);border:1px solid var(--border-strong);width:100%;max-width:420px;box-shadow:var(--shadow);border-radius:14px;padding:22px}.modal h3{margin:0 0 8px}.modal p{color:var(--text-muted);margin:0 0 16px;font-size:14px}.modal-actions{justify-content:flex-end;gap:8px;display:flex}.switch{flex-shrink:0;width:42px;height:24px;position:relative}.switch input{opacity:0;width:0;height:0}.switch span{background:var(--border-strong);cursor:pointer;border-radius:999px;transition:all .2s;position:absolute;inset:0}.switch span:before{content:"";background:#fff;border-radius:50%;width:18px;height:18px;transition:all .2s;position:absolute;top:3px;left:3px}.switch input:checked+span{background:var(--accent)}.switch input:checked+span:before{transform:translate(18px)}.tag{background:var(--bg-hover);color:var(--text-muted);border-radius:999px;padding:2px 8px;font-size:11px;font-weight:600;display:inline-block}.tag.on{background:var(--success-soft);color:var(--success)}.tag.off{background:var(--danger-soft);color:#fca5a5}.mobile-nav-toggle{display:none}@media (width<=860px){.shell{grid-template-columns:1fr}.sidebar{z-index:50;width:var(--sidebar-w);transition:transform .2s;position:fixed;top:0;bottom:0;left:0;transform:translate(-100%)}.sidebar.open{transform:translate(0)}.mobile-nav-toggle{display:inline-flex}.stats,.grid-form{grid-template-columns:1fr}.content{padding:16px}.sidebar-overlay{z-index:40;background:#0006;position:fixed;inset:0}}