:root{--paper:#eef5f6;--white:#f9fcfc;--ink:#102b35;--muted:#58717a;--line:#b9cdd1;--blue:#176b8c;--cyan:#1698a6;--red:#e34b4f;--amber:#d78b27;--violet:#755b9d;--shadow:0 18px 45px rgba(16,43,53,.09)}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:'IBM Plex Sans',sans-serif}
.skip{position:fixed;left:1rem;top:-5rem;background:var(--ink);color:white;padding:.8rem 1rem;z-index:10}
.skip:focus{top:1rem}
a{color:inherit}
.topbar{height:68px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;padding:0 clamp(1rem,4vw,4rem);border-bottom:1px solid var(--line);background:rgba(238,245,246,.9);backdrop-filter:blur(12px);position:sticky;top:0;z-index:5}
.brand{text-decoration:none;font-family:'Barlow Condensed',sans-serif;font-size:1.35rem;font-weight:700;text-transform:uppercase;letter-spacing:.04em}
.clock{font:500 .82rem 'IBM Plex Mono',monospace;color:var(--muted)}
.clock span{font-size:.65rem}
.topbar nav{justify-self:end;display:flex;gap:.35rem}
.topbar nav a{font:500 .75rem 'IBM Plex Mono';padding:.4rem .55rem;text-decoration:none;border:1px solid transparent}
.topbar nav a[aria-current]{border-color:var(--ink);background:var(--ink);color:white}
main{max-width:1500px;margin:auto;padding:0 clamp(1rem,4vw,4rem)}
.hero{min-height:57vh;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(320px,.85fr);gap:clamp(2rem,7vw,8rem);align-items:end;padding:clamp(4rem,9vw,9rem) 0 3rem}
.eyebrow,.section-index,.system,.state{font:500 .7rem 'IBM Plex Mono',monospace;text-transform:uppercase;letter-spacing:.08em}
.eyebrow{color:var(--blue)}
h1,h2{font-family:'Barlow Condensed',sans-serif;margin:0}
h1{font-size:clamp(4.5rem,11vw,10.5rem);line-height:.8;max-width:900px;letter-spacing:-.04em;text-transform:uppercase}
.intro{font-size:clamp(1.05rem,1.7vw,1.45rem);max-width:590px;color:var(--muted);margin:2rem 0 0}
.readout{border-top:4px solid var(--red);padding-top:1rem;align-self:end}
.readout-head{display:flex;align-items:center;gap:.6rem;font:500 .72rem 'IBM Plex Mono';text-transform:uppercase}
.readout-head time{margin-left:auto}
.live-dot{width:9px;height:9px;border-radius:50%;background:var(--red);box-shadow:0 0 0 5px rgba(227,75,79,.12)}
.readout p{font-size:1.2rem;line-height:1.55;margin:1.4rem 0 0}
.timeline{position:relative;margin:2rem 0 3rem;border-block:1px solid var(--line);height:132px;background:linear-gradient(90deg,transparent 24.9%,rgba(16,43,53,.05) 25%,transparent 25.1%,transparent 49.9%,rgba(16,43,53,.05) 50%,transparent 50.1%,transparent 74.9%,rgba(16,43,53,.05) 75%,transparent 75.1%)}
.timeline svg{width:100%;height:92px;margin-top:20px}
.timeline-label{position:absolute;inset:7px 0 auto;display:flex;justify-content:space-between;font:400 .62rem 'IBM Plex Mono';color:var(--muted)}
.pulse-line,.pulse-shadow{fill:none;vector-effect:non-scaling-stroke}
.pulse-shadow{stroke:rgba(227,75,79,.12);stroke-width:11}
.pulse-line{stroke:var(--red);stroke-width:2}
.monitor{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
.sensor{--tone:var(--blue);min-height:330px;background:var(--white);padding:1.35rem;display:flex;flex-direction:column;position:relative;overflow:hidden;opacity:0;transform:translateY(12px);transition:opacity .45s var(--delay),transform .45s var(--delay)}
.sensor.is-seen{opacity:1;transform:none}
.sensor--hero{grid-column:span 2;grid-row:span 2;min-height:661px}
.sensor--cyan{--tone:var(--cyan)}
.sensor--red{--tone:var(--red)}
.sensor--amber{--tone:var(--amber)}
.sensor--violet{--tone:var(--violet)}
.sensor>header,.sensor>footer{display:flex;justify-content:space-between;gap:1rem}
.system{color:var(--tone)}
.state{color:var(--muted);font-size:.6rem;display:flex;align-items:center;gap:.4rem}
.state i{width:6px;height:6px;border-radius:50%;background:var(--tone)}
[data-status=connecting] .state i{background:transparent;border:1px solid var(--muted)}
.sensor-body{margin-top:clamp(2rem,5vw,5rem);position:relative;z-index:1}
.sensor h2{font-size:clamp(2rem,3.5vw,3.4rem);line-height:.92}
.sensor--hero h2{font-size:clamp(3.8rem,7vw,7.8rem)}
.sensor-body>p{color:var(--muted);line-height:1.45;max-width:38ch}
.reading{display:flex;align-items:baseline;gap:.6rem;margin-top:1.7rem}
.reading strong{font:600 clamp(3rem,5vw,5.5rem)/.9 'Barlow Condensed';color:var(--tone);letter-spacing:-.03em}
.sensor--hero .reading strong{font-size:clamp(6rem,13vw,12rem)}
.daylight{margin-top:1.1rem!important;padding-top:1rem;border-top:1px solid var(--line);font:500 .72rem/1.5 'IBM Plex Mono',monospace!important;color:var(--blue)!important}
.context-section{padding:9rem 0 2rem}
.context-head{display:grid;grid-template-columns:.7fr 1.3fr;gap:1.5rem clamp(2rem,8vw,8rem);align-items:end;margin-bottom:2.5rem}
.context-head .section-index{grid-column:1/-1;margin:0;color:var(--blue)}
.context-head h2{font-size:clamp(3.2rem,7vw,7rem);line-height:.86;text-transform:uppercase;max-width:700px}
.context-head>p:last-child{font-size:1.1rem;line-height:1.65;color:var(--muted);max-width:48ch;margin:0}
.context-monitor{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
.sensor--compact{min-height:285px}
.sensor--compact .sensor-body{margin-top:2.2rem}
.sensor--compact h2{font-size:clamp(2rem,3vw,3rem)}
.sensor--compact .reading strong{font-size:clamp(3rem,4.5vw,4.8rem)}
.reading span,.secondary{font:500 .75rem 'IBM Plex Mono'!important;color:var(--muted)}
.spark{width:calc(100% + 2.7rem);height:78px;margin:auto -1.35rem -1rem;opacity:.35}
.spark path{fill:none;stroke:var(--tone);stroke-width:2;vector-effect:non-scaling-stroke}
.sensor>footer{border-top:1px solid var(--line);padding-top:.8rem;font:400 .62rem 'IBM Plex Mono';color:var(--muted)}
.sensor>footer a{text-align:right}
.depth{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,10vw,10rem);padding:9rem 0}
.depth article{border-top:4px solid var(--ink);padding-top:1rem}
.depth h2,.sources h2{font-size:clamp(3rem,6vw,6rem);line-height:.9;text-transform:uppercase}
.depth article>p:last-child,.sources>div>p:last-child{font-size:1.1rem;line-height:1.65;max-width:55ch;color:var(--muted)}
.sources{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(2rem,8vw,8rem);border-top:1px solid var(--line);padding:6rem 0}
.sources ol{margin:0;padding:0;list-style:none;border-top:1px solid var(--line)}
.sources li{display:grid;grid-template-columns:1fr 1fr;gap:1rem;padding:.9rem 0;border-bottom:1px solid var(--line);font-size:.82rem}
.sources li span{color:var(--muted)}
footer{max-width:1500px;margin:auto;padding:2rem clamp(1rem,4vw,4rem);border-top:1px solid var(--line);display:flex;justify-content:space-between;font:400 .7rem 'IBM Plex Mono';color:var(--muted)}
:focus-visible{outline:3px solid var(--amber);outline-offset:3px}
@media(max-width:1050px){.monitor{grid-template-columns:repeat(2,minmax(0,1fr))}
.context-monitor{grid-template-columns:repeat(2,minmax(0,1fr))}
.context-head{grid-template-columns:1fr}
.sensor--hero{min-height:580px}
.hero{grid-template-columns:1fr;min-height:auto}
.readout{max-width:650px}
}
@media(max-width:650px){.topbar{grid-template-columns:1fr auto;height:60px}
.context-section{padding-top:6rem}
.context-monitor{display:block;border-bottom:0}
.sensor--compact{min-height:390px;border-bottom:1px solid var(--line)}
.context-head h2{font-size:3.8rem}
.clock{display:none}
.hero{padding-top:4rem}
.hero h1{font-size:clamp(4rem,20vw,6.5rem);line-height:.82}
.monitor{display:block;border-bottom:0}
.sensor,.sensor--hero{min-height:430px;border-bottom:1px solid var(--line)}
.sensor--hero .reading strong{font-size:7rem}
.depth,.sources{grid-template-columns:1fr;padding:5rem 0}
.topbar{padding-inline:1rem}
.brand{font-size:1.1rem}
.sources li{grid-template-columns:1fr}
footer{gap:2rem}
}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation:none!important;transition:none!important}
.sensor{opacity:1;transform:none}
}