:root{color-scheme:light;--ink:#142f35;--muted:#50656b;--accent:#126a58;--line:#d9e4e0;--paper:#f5f8f5}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:17px/1.7 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}a{color:var(--accent);text-underline-offset:4px}a:hover{color:#084638}a:focus-visible{outline:3px solid #cf873a;outline-offset:5px}.wrap{width:min(1100px,calc(100% - 48px));margin:auto}.skip{position:absolute;left:20px;top:-100px;background:white;padding:12px;z-index:2}.skip:focus{top:10px}header{border-bottom:1px solid var(--line)}nav{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:96px}.brand{font-size:19px;font-weight:750;color:var(--ink);text-decoration:none}.brand small{display:block;font-size:11px;letter-spacing:.18em;text-transform:uppercase;font-weight:600;color:var(--muted)}nav>a:last-child{font-size:14px}.hero{display:grid;grid-template-columns:1.25fr 1fr;gap:64px;align-items:center;padding:90px 0 75px}.eyebrow{font-size:12px;font-weight:750;letter-spacing:.16em;text-transform:uppercase;color:var(--accent)}h1{font-size:clamp(36px,5.4vw,66px);line-height:1.08;letter-spacing:-.045em;margin:22px 0}h2{font-size:26px;line-height:1.25;letter-spacing:-.025em}h3{font-size:19px;line-height:1.4}.intro{font-size:20px;color:var(--muted)}.button{display:inline-block;padding:12px 21px;background:var(--accent);color:white;border-radius:6px;text-decoration:none;font-weight:650;margin-top:12px}.button:hover{background:#084638;color:white}.diagram{background:#e5eee8;border:1px solid #c9dcd1;border-radius:16px;padding:32px}.diagram .node{background:white;border:1px solid var(--line);border-radius:8px;padding:18px}.node strong{display:block}.node span{font-size:14px;color:var(--muted)}.arrow{padding:8px 20px;color:var(--accent);font-size:22px}.section{padding:48px 0;border-top:1px solid var(--line)}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.card{padding:25px;background:white;border:1px solid var(--line);border-radius:10px}.card p{color:var(--muted);font-size:15px}.number{font-size:12px;color:var(--accent);font-weight:750}.note{border-left:4px solid #bb7b27;background:#fff5df;padding:20px 24px;border-radius:4px}.prose{max-width:790px;padding:55px 0 70px}.prose h1{font-size:clamp(34px,5vw,50px)}.prose section{padding-top:20px}.prose li{margin:8px 0}.meta{font-size:14px;color:var(--muted)}footer{border-top:1px solid var(--line);padding:28px 0 38px;font-size:14px;color:var(--muted)}.footer-row{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}@media(max-width:760px){.wrap{width:calc(100% - 36px)}nav{min-height:90px;gap:16px}.brand{font-size:16px}nav>a:last-child{font-size:12px}.hero{grid-template-columns:1fr;gap:32px;padding:48px 0}.grid{grid-template-columns:1fr}.diagram{padding:24px}.section{padding:32px 0}.intro{font-size:18px}}