:root { color-scheme: dark; }
body { margin: 0; min-height: 100vh; display: grid; place-items: center; background: #0b0d14; color: #f2f3f5; font: 17px/1.5 -apple-system, "SF Pro Text", "Helvetica Neue", Arial, sans-serif; }
main { max-width: 22rem; padding: 2rem 1.5rem; text-align: center; }
h1 { font-size: 2rem; margin: 0 0 1rem; color: #d7ff3a; }
p { margin: 0 0 1.25rem; }
.button { display: inline-block; padding: 0.9rem 1.6rem; border-radius: 999px; background: #d7ff3a; color: #0b0d14; font-weight: 700; text-decoration: none; }
.hint { margin-top: 1.5rem; font-size: 0.9rem; color: #9aa0ad; }
a { color: #d7ff3a; }