:root{--bg:#f8fafc;--card:#fff;--ink:#172a3e;--muted:#5b6b7c;--blue:#1664ac;--border:#dae3ea}*{box-sizing:border-box}body{margin:0;font:16px/1.72 system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;color:var(--ink);background:var(--bg)}header{background:#132c42;color:#fff;padding:24px 18px}header .wrap,main,footer .wrap{max-width:880px;margin:auto}header h1{font-size:1.45rem;margin:0}header p{margin:4px 0 0;color:#c9d9e6}nav{max-width:880px;margin:14px auto 0;display:flex;gap:18px;flex-wrap:wrap}nav a{color:#eff8ff;text-decoration:none}nav a[aria-current]{text-decoration:underline}main{padding:32px 18px 56px}article{background:var(--card);border:1px solid var(--border);border-radius:15px;padding:28px 30px;box-shadow:0 2px 8px #162e4508}h1,h2{line-height:1.28}h1{font-size:2rem}h2{margin-top:2rem;font-size:1.25rem}a{color:var(--blue)}p,li{max-width:75ch}li{margin-bottom:7px}.tag{font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:var(--blue);font-weight:700} .note{background:#f1f6fa;border-left:3px solid #4c81a9;padding:12px 16px;border-radius:5px;margin:20px 0}.contact{font-weight:700;border-bottom:2px dashed #f2a23b}footer{border-top:1px solid var(--border);padding:22px 18px;color:var(--muted);font-size:14px}@media(max-width:600px){article{padding:19px}h1{font-size:1.7rem}}