:root{color-scheme:light dark;--bg:#f7faf9;--ink:#152a27;--muted:#536762;--line:#d9e4df;--accent:#13766d}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.8 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}a{color:var(--accent);text-underline-offset:4px}nav,main,footer{max-width:860px;margin:auto;padding:24px}nav{display:flex;justify-content:space-between;gap:24px;border-bottom:1px solid var(--line)}nav a{margin-right:16px}main{padding-top:64px;padding-bottom:70px}h1{font-size:clamp(34px,7vw,60px);line-height:1.15;letter-spacing:-1.5px;margin:0 0 24px}h2{margin-top:40px;font-size:24px;line-height:1.3}p,li{max-width:72ch}.muted{color:var(--muted)}.icon{width:112px;border-radius:25px;margin-bottom:28px}.badge{display:inline-block;font-size:13px;font-weight:650;letter-spacing:1.8px;color:var(--accent);margin-bottom:16px}footer{border-top:1px solid var(--line);font-size:14px;color:var(--muted)}section+section{margin-top:60px}details{padding:18px 0;border-bottom:1px solid var(--line)}summary{font-weight:650;cursor:pointer}.button{display:inline-block;background:var(--ink);color:var(--bg);padding:12px 22px;border-radius:12px;text-decoration:none}a:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:4px}@media(prefers-color-scheme:dark){:root{--bg:#0c1c19;--ink:#f0f8f5;--muted:#acbdb5;--line:#294038;--accent:#71d8c1}}@media(max-width:540px){nav{display:block}nav div{margin-top:8px}main{padding-top:40px}}