:root{color-scheme:light;--ink:#17352f;--muted:#526963;--paper:#fbf8ef;--card:#fff;--accent:#ef6b4a;--line:#dce5df}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:17px/1.65 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}header,main,footer{max-width:760px;margin:auto;padding:24px}header{padding-top:56px}.brand{font-weight:800;font-size:1.15rem;text-decoration:none;color:var(--ink)}h1{font-size:clamp(2.2rem,7vw,4rem);line-height:1.05;margin:.8em 0 .35em}h2{margin-top:2em;line-height:1.2}p,li{color:var(--muted)}.lead{font-size:1.2rem}.card{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:24px;margin:24px 0}.button{display:inline-block;background:var(--accent);color:#fff;text-decoration:none;font-weight:750;padding:12px 18px;border-radius:12px}a{color:#166753}nav{display:flex;gap:18px;flex-wrap:wrap}footer{border-top:1px solid var(--line);margin-top:56px;font-size:.9rem}@media(max-width:520px){header,main,footer{padding-left:18px;padding-right:18px}.card{padding:19px}}