:root { color-scheme: light; font-family: system-ui, sans-serif; }
body { margin: 0; min-height: 100vh; display: grid; place-items: center; background: #f4f7fb; color: #203047; }
main { box-sizing: border-box; width: min(100% - 2rem, 34rem); padding: 2rem; border: 1px solid #dbe3ee; border-radius: 1rem; background: white; box-shadow: 0 1rem 3rem #20304712; }
h1 { margin: 0 0 1rem; font-size: clamp(1.5rem, 4vw, 2rem); }
p { margin: 0; line-height: 1.6; }