:root { color-scheme: dark; font-family: system-ui, sans-serif; background: #0c1018; color: #edf2fb; }
body { margin: 0; min-height: 100vh; display: grid; place-items: center; }
main { max-width: 42rem; padding: 3rem 1.5rem; }
.brand { margin: 0; font-size: clamp(4rem, 18vw, 8rem); font-weight: 900; letter-spacing: -.08em; color: #64e6c5; }
h1 { font-size: clamp(2rem, 6vw, 3rem); line-height: 1.1; }
p { line-height: 1.65; }