:root{--canvas:#fafaf8;--ink:#1c1917;--muted:#78716c;--border:#e7e5e4;--accent:#5b4cc4}
*{box-sizing:border-box}
body{margin:0;background:var(--canvas);color:var(--ink);font:17px/1.6 Inter,system-ui,-apple-system,sans-serif;font-feature-settings:"cv01","ss03"}
main{max-width:680px;margin:0 auto;padding:56px 16px 80px}
header{display:flex;align-items:center;gap:12px;margin-bottom:40px}
.mark{width:40px;height:40px;border-radius:10px;background:var(--accent);display:grid;place-items:center}
.brand{font-weight:600}
nav{margin-left:auto;display:flex;gap:16px;font-size:15px}
a{color:var(--accent)}
h1{font-family:"Source Serif 4",Georgia,serif;font-weight:600;font-size:40px;line-height:1.15;margin:0 0 12px}
h2{font-family:"Source Serif 4",Georgia,serif;font-weight:600;font-size:22px;margin:36px 0 8px}
.lead{color:var(--muted);font-size:19px;margin:0 0 8px}
.meta{color:var(--muted);font-size:14px}
.card{background:#fff;border:1px solid var(--border);border-radius:14px;padding:20px 22px;margin:24px 0}
footer{margin-top:56px;padding-top:20px;border-top:1px solid var(--border);color:var(--muted);font-size:14px}