:root{--brand: #0e5b63;--brand-dark: #0a444a;--ink: #23201a;--muted: #7a756c;--line: #e3e0d8;--bg: #f4f2ec;--card: #ffffff;--bad: #c0392b;--warn: #b06a1f;--good: #2e8b57}*{box-sizing:border-box}body{margin:0;font-family:Segoe UI,Roboto,system-ui,sans-serif;background:var(--bg);color:var(--ink);font-size:14px}.login-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(160deg,#0e5b63,#08353a);padding:20px}.login-card{width:360px;max-width:100%;background:#fff;border-radius:14px;padding:28px;display:flex;flex-direction:column;gap:14px;box-shadow:0 18px 50px #00000047}.brand{text-align:center}.brand h1{margin:6px 0 0;font-size:22px;letter-spacing:.08em}.brand p{margin:2px 0 0;color:var(--muted);font-size:13px}.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:46px;height:46px;border-radius:12px;background:var(--brand);color:#fff;font-weight:800;font-size:17px}.login-card label{display:flex;flex-direction:column;gap:6px;font-weight:600;font-size:13px}.login-card input{padding:10px 12px;border:1px solid var(--line);border-radius:8px;font-size:14px}.login-card button,.btn{padding:10px 14px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--ink);font-weight:600;cursor:pointer}.login-card button[type=submit],.btn.primary{background:var(--brand);border-color:var(--brand);color:#fff}.login-card button:hover,.btn:hover{filter:brightness(.97)}.err{background:#fdeeee;color:var(--bad);border:1px solid #f3c6c0;padding:8px 10px;border-radius:8px;font-size:13px}.notice{background:#e7f5ec;color:var(--good);border:1px solid #bfe3cc;padding:8px 12px;border-radius:8px;font-size:13px}.hint{color:var(--muted);font-size:12px}.shell{min-height:100vh}.topbar{display:flex;align-items:center;justify-content:space-between;gap:14px;background:#fff;border-bottom:1px solid var(--line);padding:12px 22px;position:sticky;top:0;z-index:5}.brand.small{display:flex;align-items:center;gap:10px}.brand.small .brand-mark{width:34px;height:34px;font-size:13px;border-radius:9px}.top-right{display:flex;align-items:center;gap:12px}.user{font-weight:600}.content{max-width:1080px;margin:0 auto;padding:22px}.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin:6px 0 22px}.stat{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px 16px;display:flex;flex-direction:column}.stat b{font-size:26px;color:var(--brand)}.stat span{color:var(--muted);font-size:12px}.stat.warn-num b{color:var(--bad)}h2{margin:18px 0 10px;font-size:17px}.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px;margin-bottom:14px}.deposit-head{display:flex;align-items:center;justify-content:space-between;cursor:pointer;gap:10px}.deposit-head h3{margin:0 0 3px}.muted{color:var(--muted)}.head-right{display:flex;align-items:center;gap:8px}.caret{color:var(--muted)}.pill{display:inline-block;padding:2px 10px;border-radius:12px;font-size:12px;background:#ece9e2;color:#55524a;white-space:nowrap}.pill-bad{background:#fdeeee;color:var(--bad)}.pill-warn{background:#fdf3e8;color:var(--warn)}.sensors{margin-top:12px;border-top:1px dashed var(--line);padding-top:8px;display:flex;flex-direction:column}.sensor{display:flex;align-items:center;gap:10px;padding:8px 2px;border-bottom:1px solid #f0ede6}.sensor:last-child{border-bottom:none}.dot{width:10px;height:10px;border-radius:50%;background:var(--good);flex-shrink:0}.dot.hot{background:var(--bad)}.dot.cold{background:#3a7ca5}.dot.off{background:var(--muted)}.sensor-main{flex:1;display:flex;flex-direction:column;min-width:0}.sensor-name{font-weight:600}.sensor-id{font-size:11px;color:var(--muted);font-family:Consolas,monospace}.sensor-temp{display:flex;flex-direction:column;align-items:flex-end;gap:1px}.sensor-temp strong{font-size:18px}.sensor-temp span{font-size:11px}.deposit-detail{margin-top:12px;border-top:1px solid var(--line);padding-top:12px}.toolbar{display:flex;gap:10px;align-items:center;margin-bottom:8px}.toolbar label{display:flex;align-items:center;gap:8px;font-weight:600;font-size:13px}.toolbar select{padding:7px 10px;border:1px solid var(--line);border-radius:8px}.chart-block{margin:10px 0}.chart-title-text{font-weight:600;font-size:13px;margin-bottom:4px}.spark{background:#faf9f5;border:1px solid var(--line);border-radius:8px;display:block}.axis{font-size:10px;fill:var(--muted)}.chart-empty{border:1px dashed var(--line);border-radius:8px;padding:20px;text-align:center;color:var(--muted);background:#faf9f5}.reports-head{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}.reports{display:flex;flex-direction:column;gap:8px}.report{display:flex;align-items:center;justify-content:space-between;gap:10px;background:var(--card);border:1px solid var(--line);border-radius:10px;padding:10px 14px}@media (max-width: 640px){.content{padding:14px}}