:root { color-scheme: light dark; font-family: system-ui, sans-serif; background: #10271d; color: #f3f1e8; }
* { box-sizing: border-box; }
body { min-height: 100svh; margin: 0; display: grid; place-items: center; padding: 24px; }
main { width: min(100%, 480px); padding: 32px; border: 1px solid #496452; border-radius: 24px; background: #193b2b; }
.brand { letter-spacing: .14em; font-size: .8rem; color: #cbd8c4; }
h1 { font-size: clamp(1.6rem, 5vw, 2.2rem); line-height: 1.2; }
p { line-height: 1.6; }
a { display: block; padding: 16px; margin: 24px 0; text-align: center; background: #e6cf8f; color: #17271c; border-radius: 12px; font-weight: 700; text-decoration: none; }
a:focus-visible { outline: 3px solid white; outline-offset: 4px; }
.hint { color: #d0d8ce; font-size: .94rem; }
#error { border-left: 4px solid #e6cf8f; padding-left: 14px; }
[hidden] { display: none; }