:root{color-scheme:light;--ink:#253047;--muted:#647084;--accent:#6755a4;--bg:#f8f7fb}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.65 -apple-system,BlinkMacSystemFont,'Segoe UI',Arial,sans-serif}header,main,footer{max-width:840px;margin:auto;padding:24px}header{display:flex;justify-content:space-between;align-items:center;gap:16px}nav{display:flex;gap:16px;flex-wrap:wrap}a{color:var(--accent)}header a{text-decoration:none}main{background:white;border:1px solid #e9e6f0;border-radius:18px;padding:36px;margin:30px auto}h1{font-size:2.1rem;line-height:1.2}h2{font-size:1.25rem;margin-top:30px}p,li{max-width:72ch}footer{font-size:.9rem;color:var(--muted)}.tag{color:var(--accent);font-weight:650}.small{font-size:.94rem;color:var(--muted)}@media(max-width:600px){header{display:block}main{margin:12px;padding:24px}h1{font-size:1.8rem}}