:root { color-scheme: dark; font-family: system-ui, sans-serif; background: #10141c; color: #e8edf5; }
body { min-height: 100vh; margin: 0; display: grid; place-items: center; background: radial-gradient(circle at top, #24324a, #10141c 60%); }
.card { width: min(680px, calc(100% - 40px)); box-sizing: border-box; padding: 48px; border: 1px solid #3b4b65; border-radius: 18px; background: #171e2a; box-shadow: 0 20px 60px #0005; }
.eyebrow { color: #8fb7ff; letter-spacing: .14em; font-size: .8rem; }
h1 { margin: 12px 0; font-size: clamp(2rem, 6vw, 4rem); line-height: 1.05; }
p { color: #b9c5d6; line-height: 1.6; }
a { color: #9cc1ff; }