:root{--bg:#f5f5f3;--surface:#fff;--text:#171717;--muted:#777;--line:#e5e5e2;--accent:#171717;color:var(--text);background:var(--bg);font-synthesis:none}:root[data-theme=cobalt]{--bg:#f2f3f7;--surface:#fff;--text:#17191f;--muted:#717680;--line:#e0e3eb;--accent:#3157c8}:root[data-theme=clay]{--bg:#f4efe8;--surface:#fffaf4;--text:#241b17;--muted:#806f64;--line:#e8dbcf;--accent:#a44f32}:root[data-theme=nocturne]{--bg:#101110;--surface:#181a18;--text:#f2f3ef;--muted:#989d94;--line:#2d302d;--accent:#d5ff45}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;transition:background .2s ease,color .2s ease}.app-shell{min-height:100vh;background:var(--bg)}.app-sider{background:#111!important;border-right:0}.brand-block{height:72px;padding:0 22px;display:flex;flex-direction:column;justify-content:center;color:#fff;border-bottom:1px solid 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var(--line);display:flex;align-items:center;justify-content:space-between;backdrop-filter:blur(12px)}.app-content{margin:20px;padding:0;min-height:280px;overflow:auto}.page-title{font-size:25px!important;letter-spacing:-.02em;margin:0!important}.page-subtitle{color:var(--muted);font-size:13px;margin-top:5px}.surface-card.ant-card{border:1px solid var(--line);box-shadow:none;border-radius:12px;background:var(--surface)}.metric-card.ant-card .ant-card-body{padding:20px}.metric-label{color:var(--muted);font-size:12px;margin-bottom:12px}.metric-value{color:var(--text);font-size:30px;font-weight:680;line-height:1;letter-spacing:-.04em}.floor-card.ant-card{cursor:pointer;transition:transform .18s ease,border-color .18s 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small{color:var(--muted);font-size:11px;font-weight:500}.energy-controls{display:grid;gap:7px}.energy-control{display:flex;align-items:center;justify-content:space-between;min-height:42px;padding:7px 10px;border:1px solid var(--line);border-radius:8px}.energy-control .ant-switch-checked{background:#19a35b!important}:root[data-theme=nocturne] .app-sider{background:#090a09!important}:root[data-theme=nocturne] .device-card.is-on{background:#162019;border-color:#39744d}.ant-btn-primary{box-shadow:none!important}.ant-card-head{border-bottom-color:#ededeb!important}.ant-table-wrapper .ant-table{border-radius:10px}.ant-table-thead>tr>th{background:#f6f6f4!important;color:#666!important;font-size:12px}@media(max-width:767px){.app-header{height:56px!important;padding:0 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