:root{color-scheme:light;--ink:#172d39;--blue:#22618a;--muted:#536574;--line:#cddbe2;--paper:#f4f6f8;--ice:#dbe8ed;--deep:#102c39;--signal:#a75f35}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.6 system-ui,-apple-system,sans-serif}main,header,footer{max-width:1120px;margin:auto;padding:24px}header{display:flex;align-items:center;justify-content:space-between;gap:24px;border-bottom:1px solid var(--line)}.logo{width:230px;max-width:48vw}a{color:var(--blue);text-underline-offset:4px}h1{font-size:clamp(42px,7vw,72px);line-height:1.02;letter-spacing:-.045em;margin:16px 0;max-width:800px}h2{font-size:clamp(26px,4vw,36px);line-height:1.2;margin:12px 0}h3{font-size:21px;line-height:1.3}.eyebrow{text-transform:uppercase;letter-spacing:.17em;font-size:11px;font-weight:750;color:var(--signal)}.intro{max-width:760px;font-size:21px;line-height:1.55}.lead{position:relative;max-width:900px;margin:-84px 0 30px;padding:34px 38px 28px;background:rgba(244,246,248,.96);border-radius:0 14px 0 0;box-shadow:0 -12px 32px rgba(16,44,57,.08)}.lead .caption{max-width:760px}.tabs{display:flex;gap:10px;margin:20px 0 32px}button,select{font:inherit;color:var(--ink);background:white;border:1px solid #a8bdca;border-radius:6px;min-height:44px;padding:9px 15px}button{cursor:pointer}button[aria-pressed=true]{background:var(--ink);color:white;border-color:var(--ink)}:focus-visible{outline:3px solid #ba6a2c;outline-offset:4px}.connection{max-width:850px}.status{font-size:14px;color:var(--muted)}.layout{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start;margin:28px 0}.card{border:1px solid var(--line);border-radius:12px;background:#fff;padding:24px;min-width:0;box-shadow:0 7px 24px rgba(16,44,57,.045)}.map{width:100%;height:auto;display:block}.reading{font-size:38px;line-height:1.2;font-weight:700;margin:12px 0}.unit{font-size:16px;font-weight:400}.caption{font-size:14px;color:var(--muted)}figure{margin:0}.wide{margin:36px 0}.controls{display:flex;gap:18px;flex-wrap:wrap;align-items:end}label{display:block;font-size:14px;font-weight:600}select{display:block;margin-top:6px}svg.chart{display:block;width:100%;height:auto;overflow:visible;margin:22px 0 8px}svg text{fill:var(--muted);font:13px system-ui}svg .grid{stroke:#e3eaee;stroke-width:1}.key{display:flex;gap:18px;flex-wrap:wrap;font-size:14px}.key span:before{content:"";display:inline-block;width:22px;border-top:3px solid var(--blue);margin-right:7px;vertical-align:middle}.key .baseline:before{border-color:#70808a;border-top-style:dashed}.note{border-left:3px solid var(--signal);padding:2px 20px;margin:34px 0;max-width:850px}details{border-top:1px solid var(--line);padding:14px 0}summary{cursor:pointer;font-weight:600;min-height:30px}table{border-collapse:collapse;width:100%;font-size:14px}th,td{text-align:left;padding:9px;border-bottom:1px solid var(--line)}.table-scroll{overflow:auto;max-height:320px}footer{border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:14px}input[type=range]{width:100%;min-height:40px;accent-color:var(--blue)}[hidden]{display:none!important}@media(max-width:700px){main,header,footer{padding:18px}.layout{grid-template-columns:1fr;gap:18px}.card{padding:18px}.intro{font-size:18px}header{font-size:14px}.tabs button{flex:1}.reading{font-size:32px}svg text{font-size:12px}.lead{margin:0;padding:28px 0 22px;background:transparent;border-radius:0;box-shadow:none}h1{font-size:clamp(38px,12vw,56px)}}

.polar-hero{display:block;width:100%;height:clamp(300px,43vw,500px);object-fit:cover;object-position:center 57%;border-radius:14px;filter:saturate(.78) contrast(1.05)}.polar-photos{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:38px 0}.polar-photos img{width:100%;height:240px;object-fit:cover;border-radius:12px}.tabs{position:sticky;top:0;background:rgba(244,246,248,.95);backdrop-filter:blur(10px);padding:12px 0;z-index:2}.tabs button{min-width:140px}@media(max-width:700px){.polar-photos{grid-template-columns:1fr}.polar-photos img{height:200px}.polar-hero{height:240px;border-radius:10px}}

.logo{height:auto;display:block}

#satellite-view{margin-top:20px;border-top:1px solid #d4e0e5;padding-top:16px}#satellite-view summary{cursor:pointer;font-weight:650;color:#205c77}#satellite-view input{display:block;max-width:100%;min-height:44px;padding:8px;box-sizing:border-box;font:inherit}#satellite-load{margin:12px 0;min-height:44px;padding:10px 16px;border:1px solid #b8cbd3;border-radius:7px;background:#173f4e;color:white;font:inherit;cursor:pointer}#satellite-view figure{margin:12px 0}#satellite-view [hidden]{display:none}

.temperature-card{margin:24px 0}.temperature-card[hidden]{display:none}#temperature-view{margin:18px 0}#temperature-view summary{cursor:pointer;font-weight:650;color:#205c77;min-height:44px;line-height:1.6}#temperature-map{display:block;width:100%;height:680px;border:1px solid #b8cbd3;border-radius:10px;background:#142c38;box-sizing:border-box}@media(max-width:600px){#temperature-map{height:580px}}