:root{color-scheme:dark;font-family:Inter,Segoe UI,Arial,sans-serif;background:#071927;color:#e8fbff}body{margin:0;min-height:100vh;background:radial-gradient(circle at 20% 10%,rgba(41,248,255,.18),transparent 28rem),linear-gradient(135deg,#061522,#102d4d 58%,#2d0f75)}main{width:min(850px,100%);box-sizing:border-box;margin:auto;padding:36px 20px 64px}article{border:1px solid rgba(185,251,255,.22);border-radius:24px;background:rgba(12,38,63,.78);padding:24px;box-shadow:0 18px 60px rgba(0,0,0,.24)}h1{font-size:clamp(2rem,6vw,3.6rem);line-height:1.05}h2{margin-top:28px;font-size:1.1rem;color:white}p,li{line-height:1.6;color:#c5f5fb}a{color:#bdf7ff}nav{display:flex;gap:16px;flex-wrap:wrap}small{color:#8edfe8}