:root{font-family:Inter,"Segoe UI","Microsoft JhengHei",sans-serif;color:#1c3048;background:#f3f6fa}*{box-sizing:border-box}body{margin:0}header{height:78px;background:#fff;border-bottom:1px solid #dfe7ef;display:flex;align-items:center;justify-content:space-between;padding:0 5%}.brand{color:#20364c;text-decoration:none;display:flex;align-items:center;gap:10px;font-weight:750;font-size:18px}.brand b{display:grid;place-items:center;width:39px;height:39px;border-radius:11px;background:#19334e;color:#67dcb9;font-size:29px}.brand small{display:block;color:#8290a0;font-size:10px;letter-spacing:1.5px;margin-top:3px}nav{display:flex;align-items:center;gap:8px}nav a,nav button{font:inherit;font-size:14px;color:#64768a;text-decoration:none;padding:9px 12px;border:0;background:transparent;border-radius:7px;cursor:pointer}nav a.active{background:#e7f3f0;color:#177767}main{max-width:1400px;margin:auto;padding:38px 5%}.intro{display:flex;justify-content:space-between;align-items:center;margin-bottom:25px}.intro em,.panel em{font-style:normal;font-size:12px;letter-spacing:1.8px;font-weight:700;color:#3d867a}.intro h1{margin:8px 0;font-size:29px}.intro p,.muted{margin:0;color:#7d8c9d;font-size:14px}.chip{border:1px solid #d7e2ea;background:#fff;border-radius:20px;color:#63768a;font-size:12px;padding:8px 13px}.notice{display:none;border-radius:9px;padding:13px 16px;background:#fff5d8;color:#776121;margin-bottom:18px;font-size:14px}.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.card,.panel{background:#fff;border:1px solid #dfe7ef;border-radius:13px}.card{padding:20px}.card-head,.energy{display:flex;justify-content:space-between;gap:10px;align-items:center}.id{font-size:11px;color:#8997a7;letter-spacing:1px}.card h2{margin:6px 0 0;font-size:16px}.state{font-size:11px;padding:5px 8px;border-radius:5px;background:#e5f5ee;color:#197857}.state.offline{background:#fff1d8;color:#987330}.main-value{font-size:34px;font-weight:650;margin:20px 0}.main-value small{font-size:13px;color:#8795a4;font-weight:400}.metrics{display:grid;grid-template-columns:repeat(4,1fr);padding:14px 0;border-top:1px solid #edf1f4;border-bottom:1px solid #edf1f4;gap:6px}.metrics span{font-size:11px;color:#8795a4;display:block;margin-bottom:5px}.metrics b{font-size:13px;white-space:nowrap}.energy{font-size:12px;color:#7e8d9d;margin-top:13px}.energy strong{font-size:14px;color:#257267}.panel{margin-top:25px;padding:24px}.panel-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;gap:15px}.panel h2{margin:7px 0 0;font-size:20px}#chart{width:100%;min-height:280px;display:block}.range-buttons{display:flex;gap:6px;flex-wrap:wrap}.range-buttons button{border:1px solid #d7e2eb;background:#fff;color:#64768a;border-radius:7px;padding:7px 10px;font:inherit;font-size:13px;cursor:pointer}.range-buttons button.active{background:#1d776a;border-color:#1d776a;color:#fff}.meter-selector{display:flex;gap:8px;flex-wrap:wrap;border-top:1px solid #edf1f4;padding:15px 0 4px}.meter-option{display:inline-flex;align-items:center;gap:6px;margin:0;padding:7px 9px;border:1px solid #dce5eb;border-radius:7px;color:#43586e;font-size:13px;cursor:pointer}.meter-option input{margin:0}.meter-option i,.chart-legend i{width:10px;height:10px;border-radius:50%;display:inline-block}.chart-legend{display:flex;gap:13px;flex-wrap:wrap;min-height:24px;padding:8px 0;color:#607389;font-size:12px}.chart-legend span{display:inline-flex;gap:5px;align-items:center}.bars{height:260px;display:flex;gap:18px;align-items:end;padding:20px 20px 0;border-bottom:1px solid #e6ecf1}.bar-wrap{height:100%;flex:1;display:flex;flex-direction:column;justify-content:end;align-items:center;min-width:45px}.bar{width:min(64px,100%);background:linear-gradient(#55aa98,#2d766c);border-radius:7px 7px 0 0;min-height:3px}.bar-wrap b{font-size:12px;margin-bottom:6px;color:#27675f}.bar-wrap span{font-size:11px;color:#7f8e9e;margin-top:8px}.login-body{min-height:100vh;display:grid;place-items:center;background:linear-gradient(145deg,#e6f3f0,#f3f6fa 55%)}.login-card{width:min(420px,calc(100% - 36px));background:#fff;border:1px solid #dfe7ef;border-radius:16px;padding:34px;box-shadow:0 18px 50px #183a4a18}.login-card h1{font-size:24px;margin:30px 0 8px}.login-card p{color:#77889b}.login-card label{display:block;font-size:13px;color:#627488;margin-top:26px}.login-card input{display:block;width:100%;margin-top:7px;border:1px solid #cedbe5;padding:12px;border-radius:8px;font-size:16px}.login-card button{width:100%;background:#1d435f;color:#fff;border:0;border-radius:8px;padding:12px;margin-top:18px;font-size:15px;cursor:pointer}.error{color:#ad4030!important;font-size:13px}.floor{display:grid;grid-template-columns:1.3fr 1fr 1fr;grid-template-rows:190px 190px;gap:10px;max-width:950px;margin:auto;padding:12px;background:#dce5e9;border-radius:12px}.room{background:#fff;border:2px solid #c5d2d7;border-radius:5px;padding:15px;font-size:16px;font-weight:650}.master{grid-row:span 2}.living{grid-column:span 2}.room span{display:block;font-size:13px;font-weight:400;margin-top:18px;padding:10px;border-radius:7px;background:#f0f5f7}.room span[data-state="offline"]{background:#fff3dc;color:#8d6b23}@media(max-width:850px){.cards{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:600px){header{padding:0 18px}.brand small{display:none}nav a,nav button{padding:8px 7px;font-size:12px}main{padding:25px 18px}.intro{align-items:start}.intro h1{font-size:24px}.chip{display:none}.cards{grid-template-columns:1fr}.panel{padding:18px}.panel-head{align-items:start;flex-direction:column}.metrics{grid-template-columns:repeat(4,1fr)}.floor{grid-template-columns:1fr 1fr;grid-template-rows:auto}.master,.living{grid-row:auto;grid-column:span 2}.meter-selector{gap:6px}.meter-option{font-size:12px}}
.total-power-card{display:flex;justify-content:space-between;align-items:center;gap:24px;margin-bottom:18px;padding:22px 26px;border-radius:13px;background:linear-gradient(110deg,#173a55,#245f6b);color:#fff}.total-power-card em{font-style:normal;font-size:12px;letter-spacing:1.8px;color:#9ae0cb;font-weight:700}.total-power-card h2{font-size:42px;margin:7px 0 4px;letter-spacing:-1px}.total-power-card h2 small{font-size:17px;font-weight:500;letter-spacing:0}.total-power-card p{margin:0;color:#c5d8df;font-size:13px}.total-power-note{text-align:right;font-size:16px;font-weight:650}.total-power-note span{display:block;margin-top:5px;color:#c5d8df;font-size:12px;font-weight:400}@media(max-width:600px){.total-power-card{align-items:flex-start;flex-direction:column;padding:20px}.total-power-card h2{font-size:36px}.total-power-note{text-align:left}}

.range-energy{margin:8px 0 18px;padding:16px 18px;border:1px solid #d9e9e5;border-radius:10px;background:#f4faf8;display:flex;gap:22px;align-items:center}.range-energy-total{min-width:190px}.range-energy-total span{display:block;color:#3d867a;font-size:12px;font-weight:700;letter-spacing:1px}.range-energy-total strong{display:block;color:#1f665d;font-size:26px;margin:5px 0}.range-energy-total strong small{font-size:13px;font-weight:500}.range-energy-total p{margin:0;color:#728698;font-size:11px}.range-energy-items{display:flex;gap:12px;flex:1;flex-wrap:wrap}.range-energy-items div{border-left:2px solid #9ccfc3;padding-left:8px;min-width:110px}.range-energy-items span,.range-energy-items small{display:block;color:#718497;font-size:11px}.range-energy-items b{display:block;color:#294c5b;font-size:13px;margin-top:3px}@media(max-width:600px){.range-energy{align-items:flex-start;flex-direction:column;gap:13px}.range-energy-items{width:100%}}

#chart{cursor:crosshair}

.date-range{display:flex;align-items:end;gap:8px;flex-wrap:wrap}.date-range label{display:grid;gap:4px;color:#63768a;font-size:11px}.date-range input{border:1px solid #d7e2eb;border-radius:7px;padding:7px 8px;font:inherit;font-size:13px;color:#344d62;background:#fff}.date-range button{border:0;border-radius:7px;padding:8px 12px;font:inherit;font-size:13px;background:#1d776a;color:#fff;cursor:pointer}.usage-bars{min-height:260px}.usage-bars .bar{background:linear-gradient(#658fc9,#315f99)}@media(max-width:600px){.date-range{width:100%}.date-range input{width:100%}.date-range label{flex:1;min-width:120px}}