:root{color-scheme:light;--green:#176b60;--ink:#253e36;--cream:#faf9f4;--muted:#627265;--line:#dce3d8}*{box-sizing:border-box}body{margin:0;background:var(--cream);color:var(--ink);font:17px/1.7 -apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}header,main,footer{max-width:900px;margin:auto;padding:28px}header{display:flex;justify-content:space-between;align-items:center;gap:22px;border-bottom:1px solid var(--line)}a{color:var(--green);text-underline-offset:4px}nav{display:flex;gap:20px}.brand{font-size:28px;font-weight:850;letter-spacing:-1px;text-decoration:none}h1{font-size:clamp(36px,6vw,60px);line-height:1.08;letter-spacing:-2px;margin:30px 0 22px}h2{font-size:23px;line-height:1.3;margin-top:36px}.eyebrow{font-size:12px;letter-spacing:2px;font-weight:700;color:var(--green)}.intro{font-size:21px;max-width:650px}.card{padding:28px;background:#eef2e6;border:1px solid var(--line);border-radius:24px;margin:28px 0}.tag{display:inline-block;background:#f4d9c8;border-radius:30px;padding:5px 14px;font-size:13px}.muted,footer{color:var(--muted);font-size:14px}footer{border-top:1px solid var(--line);margin-top:45px}details{border-bottom:1px solid var(--line);padding:18px 0}summary{cursor:pointer;font-weight:650}a:focus-visible,summary:focus-visible{outline:3px solid #de9573;outline-offset:5px}@media(max-width:500px){header{align-items:flex-start;flex-direction:column}header,main,footer{padding:22px}.card{padding:22px}}