:root{color-scheme:light dark;--bg:#faf8f3;--ink:#23332d;--muted:#53665d;--line:#d9dfd6;--card:#fff;--accent:#395e46}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.7 system-ui,sans-serif}a{color:var(--accent);text-underline-offset:4px}header,main,footer{max-width:960px;margin:auto;padding:24px}header{display:flex;align-items:center;justify-content:space-between;gap:24px;border-bottom:1px solid var(--line)}.brand{font:700 26px Georgia,serif;text-decoration:none;color:var(--ink)}nav{display:flex;flex-wrap:wrap;gap:20px}h1,h2{font-family:Georgia,serif;line-height:1.2}h1{font-size:clamp(36px,7vw,62px);margin:32px 0 20px}h2{font-size:28px;margin-top:38px}.lead{font-size:22px;color:var(--muted);max-width:760px}.grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin:40px 0}.card{padding:24px;background:var(--card);border:1px solid var(--line);border-radius:12px}.card h2{margin-top:0}footer{color:var(--muted);border-top:1px solid var(--line);font-size:14px}.note{padding:18px;border-left:4px solid var(--accent);background:var(--card)}:focus-visible{outline:3px solid var(--accent);outline-offset:4px}@media(max-width:650px){header{align-items:flex-start;flex-direction:column}.grid{grid-template-columns:1fr}}@media(prefers-color-scheme:dark){:root{--bg:#18231e;--ink:#f2f3ea;--muted:#bdcabe;--line:#3f5145;--card:#243329;--accent:#a7d8ae}}