:root{color-scheme:dark}*{box-sizing:border-box}body{margin:0;background:#061b16;color:#e0f1e9;font:17px/1.65 system-ui,sans-serif}main{max-width:850px;margin:36px auto;padding:28px;border:1px solid #37574b;border-radius:20px;background:#102b22}h1{font-size:34px;line-height:1.2}h2{font-size:22px;margin-top:30px}a{color:#8ee7c4;text-decoration:underline;text-underline-offset:3px}nav,footer{display:flex;gap:20px;flex-wrap:wrap}footer{border-top:1px solid #37574b;padding-top:20px;margin-top:32px}.date{color:#a9bfb6}@media(max-width:600px){main{margin:12px;padding:22px}h1{font-size:29px}}