:root{color-scheme:dark;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:#0c1118;color:#f1f4f6}*{box-sizing:border-box}body{margin:0;line-height:1.65}header,main,footer{width:min(780px,calc(100% - 40px));margin:auto}header{padding:42px 0 20px;display:flex;justify-content:space-between;gap:20px;align-items:center}header a.brand{font-weight:800;font-size:1.2rem;color:#f1f4f6;text-decoration:none}nav{display:flex;gap:14px;align-items:center;flex-wrap:wrap}a{color:#8fd8df}nav a{color:#becbd1}button{background:#19252f;color:#e9f3f4;border:1px solid #516773;border-radius:8px;padding:6px 10px;cursor:pointer}button[aria-pressed=true]{background:#194953;border-color:#8fd8df}main{padding:20px 0 60px}h1{font-size:clamp(2rem,5vw,3rem);line-height:1.15;margin:0 0 12px}h2{font-size:1.24rem;margin:36px 0 8px}p,li{color:#ced7dc}ul{padding-left:22px}.lede{font-size:1.1rem}.meta{color:#9cabb4;font-size:.9rem}.panel{border:1px solid #34454f;border-radius:14px;padding:18px 22px;background:#121d26}footer{border-top:1px solid #34454f;padding:24px 0 50px;color:#9cabb4;font-size:.9rem}footer a{margin-right:15px}article[hidden]{display:none}@media(max-width:600px){header{align-items:flex-start;flex-direction:column}}