:root{color-scheme:dark;--bg:#101713;--ink:#deded1;--muted:#a6ada1;--line:#354237;--accent:#b8c59c}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.65 'Segoe UI',Arial,sans-serif}a{color:inherit;text-underline-offset:5px}header{padding:18px max(5vw,20px);display:flex;justify-content:space-between;gap:18px;align-items:center;border-bottom:1px solid var(--line);flex-wrap:wrap}header a{text-decoration:none;font-size:13px}nav{display:flex;gap:18px;flex-wrap:wrap}nav a[aria-current]{color:var(--accent);border-bottom:1px solid}main{max-width:1240px;margin:auto;padding:0 5vw}section{padding:54px 0;border-bottom:1px solid var(--line)}.eyebrow{color:var(--accent);font-size:12px;letter-spacing:.13em;text-transform:uppercase;display:flex;gap:22px;margin-bottom:24px}h1,h2{font-family:Georgia,serif;font-weight:400;letter-spacing:-.035em;line-height:1.07;margin:0 0 28px;max-width:940px}h1{font-size:clamp(42px,5vw,64px)}h2{font-size:clamp(34px,4.8vw,62px)}.intro{max-width:780px;color:var(--muted);font-size:18px;margin:0 0 36px}.visual{margin:38px 0 24px}.visual a{display:block}.visual img{display:block;width:100%;height:auto;border-radius:8px}.visual figcaption{font-size:12px;color:var(--muted);margin-top:10px}.points{display:flex;flex-wrap:wrap;gap:14px 32px;list-style:none;padding:0;margin:28px 0 0;color:var(--muted);font-size:14px}.points li{border-top:1px solid var(--line);padding-top:12px;flex:1;min-width:170px}.diagram{margin:48px 0;display:grid;grid-template-columns:repeat(2,1fr);gap:0 40px}.step{border-top:1px solid var(--line);padding:28px 0;display:flex;gap:24px;align-items:baseline;font:clamp(22px,3vw,34px)/1.2 Georgia,serif}.step span{font:12px 'Segoe UI',sans-serif;color:var(--accent)}.toc{padding:30px 0;display:flex;flex-wrap:wrap;gap:10px 22px;font-size:12px}.toc a{text-decoration:none;color:var(--muted)}footer{max-width:1240px;padding:45px 5vw 70px;margin:auto;color:var(--muted);font-size:12px}footer p{max-width:760px}.footer-links{display:flex;gap:24px;margin-top:24px}.language-list{margin:48px 0}.language-row{display:grid;grid-template-columns:1fr 1fr 1fr;gap:22px;border-top:1px solid var(--line);padding:24px 0}.language-row strong{font:26px Georgia,serif}.language-row a{font-size:15px}.cover{min-height:85vh}.cover p{max-width:680px;color:var(--muted)}@media(max-width:600px){body{font-size:16px}header{padding:16px 20px}header>span{width:100%;font-size:12px}nav{gap:14px}main{padding:0 20px}section{padding:52px 0}.intro{font-size:16px}.visual{margin:28px -8px 20px}.visual figcaption{padding:0 8px}.diagram{grid-template-columns:1fr;margin:30px 0}.step{padding:22px 0}.language-row{grid-template-columns:1fr 1fr}.language-row strong{grid-column:1/-1}.toc{gap:10px 16px}footer{padding:30px 20px}.points{gap:10px 20px}.points li{min-width:130px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}