body { margin: 0; padding: 24px; background: #f4f6f3; color: #102a23; font-family: system-ui, sans-serif; }
main { max-width: 440px; margin: 12vh auto; background: white; padding: 32px; border-radius: 24px; box-shadow: 0 8px 40px #102a2310; }
.brand { font-weight: 800; letter-spacing: -.04em; font-size: 22px; }
h1 { font-size: 28px; margin-top: 32px; }
p { line-height: 1.6; }
a { display: block; margin-top: 28px; padding: 16px; background: #102a23; color: white; border-radius: 12px; text-decoration: none; text-align: center; font-weight: 700; }
a[hidden] { display: none; }
.help { font-size: 14px; color: #5b6963; margin-top: 24px; }