:root{color-scheme:light dark;font-family:system-ui,sans-serif;line-height:1.55;--accent:#5b7cfa}*{box-sizing:border-box}body{max-width:68rem;margin:auto;padding:1.5rem;color:#20242c;background:#f7f8fb}header{display:flex;justify-content:space-between;align-items:center;gap:1rem;border-bottom:1px solid #d9dce5;padding-bottom:1rem}nav{display:flex;gap:1rem}.brand{display:flex;align-items:center;gap:.6rem;font-weight:700}.brand img{width:2rem}a{color:var(--accent);text-decoration:none}main{max-width:46rem;padding:5rem 0}h1{font-size:clamp(2.3rem,6vw,4.8rem);line-height:1.05;margin:.4rem 0 1.5rem}.eyebrow{text-transform:uppercase;letter-spacing:.13em;font-size:.8rem;font-weight:700;color:#677083}section,article{margin-top:3rem;padding:1.5rem;border:1px solid #d9dce5;border-radius:1rem;background:#fff}footer{border-top:1px solid #d9dce5;padding:1rem 0;color:#677083}@media(prefers-color-scheme:dark){body{color:#e9ebf1;background:#14161b}section,article{background:#1c1f26;border-color:#343944}header,footer{border-color:#343944}}