:root { color-scheme: light; font-family: Arial, sans-serif; color: #243c32; background: #f7f1e6; }
* { box-sizing: border-box; }
body { margin: 0; padding: 48px 20px; }
.payment-card { max-width: 640px; margin: 0 auto; padding: 40px; background: #fffdf8; border: 1px solid #dfd8cb; border-radius: 20px; }
.brand { letter-spacing: .15em; font-weight: 700; text-decoration: none; }
h1 { font-family: Georgia, serif; font-size: clamp(2rem, 6vw, 2.7rem); line-height: 1.15; margin-top: 32px; }
p { line-height: 1.65; }
a { color: #854423; text-underline-offset: 3px; }
a:focus-visible { outline: 3px solid #854423; outline-offset: 5px; }
.amount { font-size: 2rem; font-weight: 700; margin: 24px 0; }
.links { display: flex; flex-wrap: wrap; gap: 20px; margin-top: 32px; }
#bold-checkout { margin-top: 28px; }
#payment-loading { font-size: .9rem; }
@media (max-width: 480px) { body { padding: 20px 12px; } .payment-card { padding: 26px 20px; } }