:root{color-scheme:light;--ink:#19312a;--sage:#6f9684;--cream:#f7f3ea;--line:#dce6de}*{box-sizing:border-box}body{margin:0;background:var(--cream);color:var(--ink);font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}main{max-width:820px;margin:0 auto;padding:64px 24px}header{margin-bottom:42px}h1{font-size:clamp(2.2rem,6vw,4rem);line-height:1.05;margin:0 0 14px;letter-spacing:-.04em}h2{margin-top:38px;font-size:1.35rem}p,li{max-width:720px}a{color:#356a57}nav{display:flex;gap:18px;flex-wrap:wrap;margin-top:26px}nav a{font-weight:600;text-decoration:none}.card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:26px;margin:22px 0;box-shadow:0 10px 30px #19312a0d}.muted{color:#5c7169;font-size:.95rem}footer{border-top:1px solid var(--line);margin-top:54px;padding-top:20px;color:#5c7169;font-size:.9rem}