:root{color-scheme:light dark;--bg:#f4f7f3;--ink:#173633;--muted:#536b68;--surface:#fff;--accent:#086c68;--line:#d8e5df}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.8}main,header,footer{max-width:800px;margin:auto;padding:24px}header{display:flex;gap:16px;align-items:center}header img{width:56px;height:56px;border-radius:14px}a{color:var(--accent);text-underline-offset:4px}nav{display:flex;gap:24px;flex-wrap:wrap}h1{font-size:clamp(28px,6vw,42px);line-height:1.3;margin:16px 0}h2{font-size:22px;line-height:1.5}p{margin:12px 0}section{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:24px;margin:24px 0}.lead{font-size:19px;color:var(--muted)}.pill{display:inline-block;background:var(--accent);color:white;border-radius:12px;padding:12px 18px;text-decoration:none;font-weight:600}small,footer{color:var(--muted)}:focus-visible{outline:3px solid var(--accent);outline-offset:4px}@media(prefers-color-scheme:dark){:root{--bg:#101e1c;--ink:#e4f1ec;--muted:#b4c9c2;--surface:#192b27;--accent:#79d1c3;--line:#34514a}.pill{color:#101e1c}}@media(max-width:420px){main,header,footer{padding:18px}section{padding:18px}}