:root{color-scheme:dark;font-family:system-ui,sans-serif;background:#0d1320;color:#eaf0fa}*{box-sizing:border-box}body{margin:0;line-height:1.7}main{max-width:850px;margin:0 auto;padding:64px 24px}header{border-bottom:1px solid #314059;padding-bottom:28px;margin-bottom:32px}.brand{color:#8ec7ff;font-weight:700;letter-spacing:.05em}h1{font-size:clamp(2rem,5vw,3rem);line-height:1.15;margin:18px 0}h2{font-size:1.2rem;margin-top:32px;color:#fff}p,li{color:#c2cfe0}a{color:#9ad2ff;text-underline-offset:4px}nav{display:flex;gap:24px;flex-wrap:wrap;margin-top:24px}.note{border-left:3px solid #67b6ff;padding:10px 20px;background:#172338}footer{border-top:1px solid #314059;margin-top:42px;padding-top:22px;font-size:.9rem}ul{padding-left:22px}