:root{--bg:#f7f8fa;--card:#fff;--text:#1d2330;--muted:#5a6272;--line:#e2e5ea;--brand:#1a5fd0;--brand-dark:#144aa3}*,*::before,*::after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif}a{color:var(--brand)}a:hover{color:var(--brand-dark)}a:focus-visible{outline:2px solid var(--brand);outline-offset:2px}header,main,footer{max-width:760px;margin:0 auto;padding:0 16px}header{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px 24px;padding-top:20px;padding-bottom:20px}.logo{font-weight:700;font-size:1.15rem;color:var(--text);text-decoration:none}nav{display:flex;flex-wrap:wrap;gap:4px 18px}nav a{display:inline-block;padding:10px 0;text-decoration:none;font-size:.95rem}main{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:28px 20px 32px}h1{font-size:1.75rem;line-height:1.25;margin:0 0 8px}h2{font-size:1.2rem;margin:28px 0 8px}p,ul{margin:0 0 14px}ul{padding-left:22px}li{margin-bottom:6px}.lead{font-size:1.08rem;color:var(--muted)}.meta{color:var(--muted);font-size:.9rem;margin-bottom:20px}footer{padding-top:24px;padding-bottom:32px;color:var(--muted);font-size:.9rem}footer nav{margin-bottom:6px}@media (min-width:768px){main{padding:40px 48px 44px}h1{font-size:2rem}}