:root{color-scheme:light;--paper:#f5f4ed;--ink:#203830;--muted:#5c6c63;--line:#d5ddd3;--green:#265f4d;--rust:#a65431;--white:#fffefa}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.55 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}a{color:var(--green);text-underline-offset:4px}a:hover{color:var(--rust)}button,input{font:inherit}header,main,footer{max-width:1240px;margin:auto;padding:0 32px}.topbar{display:flex;align-items:center;justify-content:space-between;gap:24px;border-bottom:1px solid var(--line);padding:24px 0}.wordmark{font-weight:800;font-size:23px;letter-spacing:-1px}.wordmark span{font:12px ui-monospace,monospace;letter-spacing:1px;color:var(--muted);margin-left:16px}nav{display:flex;gap:24px;flex-wrap:wrap}nav a{font-size:13px;text-decoration:none}.hero{display:grid;grid-template-columns:1.5fr 1fr;gap:64px;align-items:center;padding:64px 0 44px}.eyebrow{font-size:11px;font-weight:750;letter-spacing:2px;text-transform:uppercase;color:var(--green);margin:0 0 14px}h1{font-size:clamp(45px,6vw,80px);letter-spacing:-4px;line-height:1;margin:0 0 22px}h2{font-size:29px;line-height:1.2;letter-spacing:-1px;margin:0 0 12px}h3{font-size:18px;line-height:1.3;margin:0 0 10px}.intro{font-size:21px;line-height:1.5;max-width:650px;margin:0}.status{display:inline-block;margin-top:24px;padding:7px 12px;border:1px solid #a5b9a9;border-radius:4px;font-size:12px;color:var(--green)}.hero-note{border-left:3px solid var(--green);padding:10px 0 10px 24px}.hero-note p{margin:0 0 12px}.hero-note small{color:var(--muted)}.metrics{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);background:var(--white);margin-bottom:42px}.metric{padding:23px 25px;border-right:1px solid var(--line)}.metric:last-child{border:0}.metric strong{display:block;font-size:35px;letter-spacing:-1px;line-height:1.2}.metric span{display:block;color:var(--muted);font-size:12px;margin-top:8px}.section-head{display:flex;justify-content:space-between;gap:25px;align-items:end;margin-bottom:22px}.section-head p{margin:0;max-width:600px;color:var(--muted)}.section-head a{font-size:13px;white-space:nowrap}.model-card{background:var(--white);border:1px solid var(--line);display:grid;grid-template-columns:1fr 310px}.drawing{padding:20px 20px 0;min-width:0}.drawing svg{display:block;width:100%;height:auto;min-height:310px}.drawing .caption{font-size:12px;color:var(--muted);margin:0 16px 24px}.model-controls{padding:28px;background:#eef1e8;border-left:1px solid var(--line)}label{display:block;font-size:13px;margin:0 0 7px;font-weight:650}input[type=range]{display:block;width:100%;accent-color:var(--green);margin:12px 0 24px;cursor:pointer}output{float:right;color:var(--green)}.readings{margin:22px 0;border-top:1px solid var(--line)}.readings div{display:flex;justify-content:space-between;gap:8px;padding:10px 0;border-bottom:1px solid var(--line);font-size:12px}.readings dd{font-weight:700;margin:0;white-space:nowrap}.readings dt{color:var(--muted)}.small{font-size:12px;color:var(--muted)}.callout{padding:18px 24px;margin:18px 0 0;border-left:3px solid var(--rust);background:#f0e8dc;font-size:14px}.section{padding:52px 0 0}.split{display:grid;grid-template-columns:1.45fr 1fr;gap:40px}.table-wrap{overflow-x:auto;border:1px solid var(--line);background:var(--white)}table{border-collapse:collapse;width:100%;font-size:13px}th{text-align:left;font-size:11px;letter-spacing:.6px;color:var(--muted);text-transform:uppercase;background:#ecefe7}th,td{padding:11px 15px;border-bottom:1px solid var(--line)}th:last-child,td:last-child{text-align:right;white-space:nowrap}tfoot td{font-size:15px;font-weight:750;background:#e2ebdf}.budget-note{padding:24px;background:#e4ebdf;align-self:start}.budget-note p{margin:0 0 16px;font-size:14px}.budget-note p:last-child{margin-bottom:0}.budget-number{font-size:40px;line-height:1.1;font-weight:750;letter-spacing:-1.5px;display:block;margin:12px 0}.steps{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);background:var(--white)}.step{padding:25px;border-right:1px solid var(--line)}.step:last-child{border:0}.step .number{font:12px ui-monospace,monospace;color:var(--rust);margin-bottom:20px;display:block}.step p{font-size:13px;color:var(--muted);margin:0}.finish{margin-top:24px;padding:24px;border:1px solid var(--line)}.finish p{font-size:14px;margin:0}.archive{margin-top:52px;padding:30px 0;display:grid;grid-template-columns:1fr 1fr;gap:40px;border-top:1px solid var(--line)}.archive p{font-size:14px;color:var(--muted);margin:0}.links{display:flex;gap:10px 20px;flex-wrap:wrap;align-content:center;font-size:13px}footer{padding-top:24px;padding-bottom:30px;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}a:focus-visible,input:focus-visible{outline:3px solid var(--rust);outline-offset:5px}
@media(max-width:900px){.hero{gap:30px}.model-card{grid-template-columns:1fr 270px}.steps{grid-template-columns:repeat(2,1fr)}.step:nth-child(2){border-right:0}.step:nth-child(-n+2){border-bottom:1px solid var(--line)}.split{gap:24px}.metric{padding:20px 16px}.metric strong{font-size:30px}}
@media(max-width:650px){header,main,footer{padding-left:20px;padding-right:20px}.topbar{align-items:start;gap:20px}.wordmark span{display:block;margin:4px 0 0;font-size:10px}nav{gap:10px 16px;justify-content:flex-end;max-width:230px}nav a{font-size:11px}.hero{grid-template-columns:1fr;padding:40px 0 28px;gap:26px}h1{letter-spacing:-2.5px}.intro{font-size:18px}.hero-note{font-size:14px}.metrics{grid-template-columns:repeat(2,1fr);margin-bottom:34px}.metric:nth-child(2){border-right:0}.metric:nth-child(-n+2){border-bottom:1px solid var(--line)}.model-card,.split,.archive{grid-template-columns:1fr}.model-controls{border-left:0;border-top:1px solid var(--line)}.drawing{padding:8px}.drawing svg{min-height:220px}.section-head{display:block}.section-head a{display:inline-block;margin-top:12px}.steps{grid-template-columns:1fr}.step{border-right:0;border-bottom:1px solid var(--line)}.section{padding-top:38px}.archive{gap:20px}.table-wrap{max-width:100%}.caption{font-size:11px!important}.hero-note small{font-size:12px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}