:root{--navy:#102c49;--ink:#16304b;--muted:#667d91;--blue:#168ed1;--teal:#008f97;--line:#dfe7ef;--bg:#f3f7fb}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.5 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}a{color:var(--teal);text-decoration:none}button,input,select,textarea{font:inherit}button,a{touch-action:manipulation}button{cursor:pointer}h1,h2,h3,p{margin-top:0}h1{font-size:34px;letter-spacing:-1.2px;margin-bottom:8px;line-height:1.15}h2{font-size:20px;letter-spacing:-.4px}h3{font-size:18px;margin-bottom:3px}small{font-size:12px;color:var(--muted)}p{color:var(--muted)}.sidebar{width:230px;background:var(--navy);color:#e7f3ff;position:fixed;inset:0 auto 0 0;padding:28px 18px;display:flex;flex-direction:column}.brand{display:flex;gap:10px;align-items:center;font-size:24px;font-weight:700;color:white}.brand small{display:block;color:#a0bcd3;font-size:9px;letter-spacing:1.2px}.utility{margin:35px 10px 22px;padding-bottom:22px;border-bottom:1px solid #ffffff20;font-weight:600}.utility small{display:block;color:#99b4ce;text-transform:capitalize}.sidebar nav a{display:block;padding:12px 15px;margin:5px 0;border-radius:8px;color:#bbd0e3}.sidebar nav a:hover,.sidebar nav a.selected{background:#ffffff12;color:white}.side-bottom{margin-top:auto;padding:20px 10px;font-size:12px;color:#adc4d8}.side-bottom small{color:#89a7bf}main{margin-left:230px}.topbar{display:flex;justify-content:space-between;align-items:center;padding:17px 32px;border-bottom:1px solid var(--line);background:white}.eyebrow{font-size:10px;font-weight:700;letter-spacing:1.7px;color:var(--muted)}.inline{display:inline}.quiet{border:0;background:transparent;color:var(--muted);margin-left:12px}.page{padding:32px;max-width:1680px;margin:auto}.page-title{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:25px}.page-title p{margin:0}.button{display:inline-flex;justify-content:center;align-items:center;gap:8px;background:var(--teal);border:1px solid var(--teal);color:white;padding:10px 17px;border-radius:8px;font-weight:600;font-size:13px}.button.secondary{background:white;color:var(--ink);border-color:var(--line)}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:26px}.stat{background:white;border:1px solid var(--line);padding:22px;border-radius:12px}.stat span,.stat small{display:block}.stat span{color:var(--muted);font-size:13px}.stat strong{font-size:32px;letter-spacing:-1px;display:block;margin:7px 0}.stat em{font-style:normal;font-size:18px;font-weight:400;color:var(--muted)}.stats.two{grid-template-columns:1fr 1fr}.tank-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.tank-card{background:white;border:1px solid var(--line);border-radius:13px;padding:20px;color:var(--ink);transition:box-shadow .15s}.tank-card:hover{box-shadow:0 8px 24px #15354c12}.card-heading{display:flex;justify-content:space-between;gap:10px}.badge{display:inline-block;background:#edf2f7;color:#577085;padding:4px 8px;border-radius:5px;font-size:10px;align-self:flex-start;white-space:nowrap}.badge.good{background:#ddf5ed;color:#147954}.badge.warning{background:#fff0d5;color:#9e6505}.tank-graphic{display:block;width:100%;height:220px;margin:15px 0}.tank-graphic.large{height:350px}.tank-values{display:flex;justify-content:space-between;align-items:center;gap:10px;font-weight:600}.tank-values>strong{font-size:31px;letter-spacing:-1px}.tank-values small{display:block;font-weight:400}.fill-track{height:7px;background:#e7edf4;border-radius:5px;overflow:hidden;margin:15px 0}.fill-track span{display:block;height:100%;background:var(--blue)}.card-footer{display:flex;justify-content:space-between;gap:8px;align-items:center}.card-footer small{font-size:10px}.section-heading{display:flex;justify-content:space-between;align-items:center;margin:27px 0 14px;gap:15px}.section-heading h2{margin:0}.muted{color:var(--muted);font-size:12px}.panel{background:white;border:1px solid var(--line);padding:24px;border-radius:12px;margin-bottom:20px}.empty{grid-column:1/-1;text-align:center;padding:60px}.list-row{display:flex;gap:15px;align-items:center;padding:16px 0;border-bottom:1px solid var(--line)}.list-row:last-child{border:0}.list-row>strong,.list-row>.badge{margin-left:auto}.list-row small{display:block}.alarm-dot{width:10px;height:10px;background:#e6a01a;border-radius:50%}.notice,.demo-banner{padding:13px 18px;border-radius:7px;margin-bottom:20px;background:#def4ee;color:#1c6c58}.notice.error{background:#ffebe8;color:#9b3d30}.demo-banner{background:#e7effc;color:#426a9f;font-size:12px}.detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}.tank-stage{background:linear-gradient(#fff,#eaf4fa);display:flex;align-items:center;justify-content:center}.chart-wrap{height:260px}.map-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:20px}#map{height:620px;border-radius:12px;z-index:0}#map-detail .button{display:flex;margin:15px 0}.map-tank{background:none;border:0;display:flex;align-items:center;gap:3px}.map-tank b{background:white;border-radius:4px;padding:2px 5px;color:#183c59;box-shadow:0 2px 8px #0002}.map-tank-icon{width:28px;height:37px;background:#f0f5fa;border:2px solid #36647c;border-radius:50%/12%;position:relative;overflow:hidden;flex-shrink:0}.map-tank-icon span{position:absolute;bottom:0;left:0;right:0;background:#168ed1}.map-tank-icon.stale{opacity:.55}table{width:100%;border-collapse:collapse;font-size:13px}td,th{text-align:left;padding:13px 12px;border-bottom:1px solid var(--line);vertical-align:top}th{font-size:10px;text-transform:uppercase;letter-spacing:1px;color:var(--muted)}td small{display:block}.table-wrap{overflow:auto}pre{white-space:pre-wrap;overflow-wrap:anywhere;background:#f1f5f9;padding:15px;border-radius:6px;font-size:12px}code{font-size:12px}label{display:block;font-size:12px;font-weight:600;margin:12px 0}input,select,textarea{display:block;width:100%;margin:6px 0 12px;padding:10px 12px;border:1px solid #cad7e3;border-radius:6px;background:white;color:var(--ink)}textarea{min-height:85px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 20px}.check{display:flex;align-items:center;gap:12px}.check input{width:auto;margin:0}details>summary{cursor:pointer;font-weight:600}details[open]>summary{margin-bottom:16px}.login{display:grid;grid-template-columns:1fr 1fr;min-height:100vh;background:white}.login-intro{background:var(--navy);padding:12vh 10%;color:white;overflow:hidden}.login-intro h1{font-size:48px;margin-top:45px}.login-intro p{color:#a7c6df;max-width:370px}.login-art{font-size:150px;color:#4dbfe6;text-align:center;max-width:400px}.login-box{align-self:center;padding:50px;max-width:460px;width:100%;justify-self:center}.login-box h2{font-size:30px;margin-top:15px}.login-box .button{width:100%;margin:15px 0}.login-box small{display:block;text-align:center}hr{border:0;border-top:1px solid var(--line);margin:22px 0}nav[role=navigation]{display:flex;gap:20px;margin-top:20px}@media(max-width:1150px){.tank-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.stats{grid-template-columns:repeat(2,1fr)}.sidebar{width:200px}main{margin-left:200px}.map-layout{grid-template-columns:1fr}.detail-grid{grid-template-columns:1fr}}@media(max-width:750px){.sidebar{position:static;width:auto;padding:16px}.sidebar .utility,.side-bottom{display:none}.sidebar nav{display:flex;overflow:auto;gap:5px;margin-top:12px}.sidebar nav a{white-space:nowrap;padding:8px;font-size:12px}.brand{font-size:20px}main{margin-left:0}.topbar{padding:12px 18px}.topbar .eyebrow{display:none}.page{padding:20px 14px}.page-title{align-items:flex-start}.page-title .button{display:none}h1{font-size:28px}.tank-grid{grid-template-columns:1fr}.stats{gap:10px}.stat{padding:15px}.stat strong{font-size:26px}.panel{padding:17px}.form-grid{grid-template-columns:1fr}.login{display:block}.login-intro{padding:35px}.login-intro h1{font-size:30px;margin-top:15px}.login-art{display:none}.login-box{padding:30px;margin:auto}#map{height:500px}}