:root{--bg:#0b1118;--surface:#131d29;--border:#263445;--text:#edf3f9;--muted:#9bacbf;--green:#60debe;--amber:#f0c36e;--red:#ff9396;--blue:#85bbff}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.5 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}main{max-width:1360px;margin:auto;padding:36px 28px}h1{font-size:40px;letter-spacing:-1.8px;line-height:1.2;margin:8px 0}h2{font-size:21px;margin:7px 0}h3{font-size:16px;margin:0 0 14px}.accent{color:var(--green)}.eyebrow{font-size:11px;letter-spacing:2px;color:var(--green);font-weight:700}.muted{color:var(--muted);font-size:13px}header,.section-head,footer,.header-right{display:flex;justify-content:space-between;align-items:center;gap:16px}header{margin-bottom:36px}.header-right{flex-wrap:wrap;justify-content:flex-end}section{margin-bottom:30px}.section-head{margin-bottom:14px}.sensor-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:14px}.sensor-card,.gateway,.chart-card,.login-card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:20px}.sensor-card{cursor:pointer}.sensor-card.selected{border-color:var(--green)}.sensor-card h3{overflow-wrap:anywhere}.sensor-card .meta{display:flex;justify-content:space-between;gap:5px;flex-wrap:wrap}.sensor-card .temperature{font-size:38px;letter-spacing:-1.5px;font-weight:600;margin:16px 0 0}.sensor-card .humidity{font-size:19px;color:var(--blue);margin-bottom:16px}.sensor-card.stale .temperature,.sensor-card.offline .temperature{color:var(--muted)}.badge{display:inline-flex;align-items:center;justify-content:center;align-self:flex-start;text-align:center;line-height:1.3;min-height:24px;font-size:11px;border-radius:30px;padding:4px 10px;background:#203f36;color:var(--green)}.badge.warning{background:#453c29;color:var(--amber)}.badge.danger{background:#452d34;color:var(--red)}.radio-estimate{margin-top:12px;font-size:13px}.radio-estimate small{display:block;font-size:11px}.sensor-card .radio-calibrate{display:block;background:none;color:var(--muted);font-size:11px;text-decoration:underline;padding:2px 0;min-height:24px}dialog{background:var(--surface);color:var(--text);border:1px solid var(--border);border-radius:16px;padding:24px;width:min(480px,calc(100% - 32px));max-height:90vh;overflow:auto}dialog::backdrop{background:rgba(0,0,0,.65)}dialog label{margin-top:14px}dialog input{width:100%}.radio-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}#radio-capture{margin-top:8px}.sensor-card .details{font-size:12px;color:var(--muted);border-top:1px solid var(--border);padding-top:12px;margin-top:12px}.gateways{display:grid;gap:12px}.gateway-top{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}.gateway-metrics{display:grid;grid-template-columns:repeat(auto-fit,minmax(110px,1fr));gap:20px;margin-top:20px}.metric span{display:block;color:var(--muted);font-size:12px}.metric strong{display:block;font-size:19px;font-weight:500}.gateway .muted{margin-top:10px}.filters{display:flex;align-items:end;flex-wrap:wrap;gap:14px;margin-top:16px}label{display:block;font-size:12px;color:var(--muted)}input,select{display:block;min-height:42px;border:1px solid var(--border);border-radius:8px;background:#0c1520;color:var(--text);font:inherit;padding:10px 12px;margin-top:6px}button{min-height:42px;background:var(--green);border:0;border-radius:8px;color:#10241e;font:600 13px system-ui;padding:10px 16px;cursor:pointer}button:hover{filter:brightness(1.1)}button:disabled{opacity:.6;cursor:wait}.ghost{background:transparent;color:var(--text);border:1px solid var(--border)}.sensor-card .ghost{width:100%;margin-top:14px;min-height:34px}input:focus-visible,select:focus-visible,button:focus-visible{outline:2px solid var(--green);outline-offset:3px}.chart-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:16px;margin-top:18px}.chart-card{min-width:0}.chart-box{position:relative;height:255px;width:100%;min-width:0}.chart-note{margin:16px 0 0}.notice{padding:14px;border:1px solid var(--red);border-radius:8px;color:var(--red);margin-bottom:20px}.empty{border:1px dashed var(--border);border-radius:12px;padding:28px;color:var(--muted);text-align:center}footer{margin-top:35px;border-top:1px solid var(--border);padding-top:20px;color:var(--muted);font-size:12px;flex-wrap:wrap}.login-wrap{min-height:100vh;display:grid;place-items:center;padding:24px;margin:0}.login-card{width:100%;max-width:390px;padding:32px}.login-card label{margin-top:20px}.login-card input,.login-card button{width:100%}.login-card button{margin-top:24px}#login-error{color:var(--red);font-size:13px}[hidden]{display:none!important}@media(max-width:700px){main{padding:24px 16px}header{align-items:start}h1{font-size:34px}.chart-grid{grid-template-columns:minmax(0,1fr)}.section-head{align-items:start;flex-wrap:wrap}.sensor-grid{grid-template-columns:repeat(auto-fit,minmax(170px,1fr))}.sensor-card{padding:16px}.filters label,.filters button{flex:1 1 140px}.filters select,.filters input{width:100%}.header-right{max-width:170px}.gateway-metrics{gap:15px}}