*{box-sizing:border-box}body{margin:0;background:#061722;color:#effaff;font:18px/1.75 Arial,sans-serif}main,header,footer{max-width:900px;margin:auto;padding:28px}a{color:#57dfff}header{border-bottom:1px solid #24404c;display:flex;justify-content:space-between;gap:20px;font-size:15px}h1{font-size:clamp(30px,6vw,48px);line-height:1.2}h2{font-size:25px;margin-top:38px}p,li{color:#bed2dc}.cta{display:inline-block;background:#57dfff;color:#061722;padding:12px 22px;text-decoration:none;border-radius:8px;font-weight:bold}article{margin:24px 0;padding-bottom:18px;border-bottom:1px solid #24404c}footer{font-size:13px;border-top:1px solid #24404c}img{width:100%;height:auto;border-radius:12px}nav{font-size:14px}a:focus-visible{outline:3px solid #9ade65;outline-offset:4px}html{scroll-behavior:smooth;scroll-padding-top:24px}.toc{padding:20px;background:#102c39;border:1px solid #24404c;border-radius:12px;margin:24px 0}.toc ol{margin-bottom:0}.updated{font-size:14px}.skip{position:absolute;left:12px;top:-100px;background:#061722;padding:10px}.skip:focus{top:12px}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}