:root{color-scheme:light;--page:#edf0f6;--surface:#fff;--ink:#172238;--muted:#63718a;--line:#dfe5ef;--accent:#6448ef;--soft:#eeebff}*{box-sizing:border-box}body{margin:0;background:var(--page);color:var(--ink);font:16px/1.7 system-ui,sans-serif}header,main,footer{max-width:840px;margin:auto;padding:24px}header{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px}.brand{font-size:26px;font-weight:800;text-decoration:none}nav{display:flex;gap:18px;flex-wrap:wrap}a{color:var(--accent);text-underline-offset:3px}a:focus-visible{outline:3px solid var(--accent);outline-offset:4px}main{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:32px;margin-bottom:24px}h1{font-size:clamp(28px,6vw,36px);line-height:1.2;margin:0 0 12px}h2{font-size:21px;line-height:1.4;margin:32px 0 10px}p,ul{margin:12px 0}.meta,footer{color:var(--muted);font-size:14px}.summary{background:var(--soft);border-radius:12px;padding:16px 20px}li{margin:8px 0}main,li,a{overflow-wrap:anywhere}footer{padding-top:0}@media(max-width:700px){header,footer{padding:20px 16px}main{margin:0 12px 20px;padding:22px 18px}nav a{min-height:44px;display:inline-flex;align-items:center}}