:root {
  color: #073b78;
  background: #f2eee7;
  font-family: Arial, sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; background: linear-gradient(145deg, #fff9de, #e8f9fd); }
.payment-shell { width: min(620px, calc(100% - 32px)); margin: 0 auto; padding: 36px 0; }
.brand { display: inline-flex; align-items: center; margin-bottom: 24px; text-decoration: none; }
.brand img { width: 220px; height: 105px; object-fit: contain; }
.payment-card { padding: clamp(24px, 6vw, 48px); border-radius: 18px; background: #fffdf9; box-shadow: 0 22px 70px rgba(21, 55, 57, .14); }
.eyebrow { margin: 0 0 8px; color: #f600a8; font-size: 11px; font-weight: 800; letter-spacing: 1.7px; text-transform: uppercase; }
h1, h2 { margin: 0 0 22px; font-family: Georgia, serif; }
h1 { font-size: clamp(34px, 8vw, 52px); line-height: 1; }
.booking-meta { display: flex; justify-content: space-between; gap: 18px; padding: 16px 0; border-block: 1px solid #e8e0d5; color: #607270; }
.booking-meta p { margin: 0; }
.payment-lines { margin-top: 18px; }
.payment-line, .payment-total { display: flex; justify-content: space-between; gap: 20px; padding: 11px 0; }
.payment-line { color: #536765; border-bottom: 1px solid #eee8de; }
.payment-total { margin-top: 8px; color: #0753b2; font-size: 21px; font-weight: bold; }
.test-notice { display: grid; gap: 5px; margin: 22px 0 15px; padding: 16px; border-left: 4px solid #ffb447; background: #fff4df; line-height: 1.45; }
#payment-expiry { color: #647573; font-size: 13px; }
button, #payment-success a { display: block; width: 100%; padding: 15px 18px; border: 0; border-radius: 6px; background: #ffdc55; color: #073b78; font: 800 16px Arial, sans-serif; text-align: center; text-decoration: none; cursor: pointer; }
button:disabled { cursor: wait; opacity: .65; }
#payment-message { color: #b83f32; font-weight: bold; }
#payment-success { text-align: center; }
.success-mark { display: grid; width: 70px; height: 70px; margin: 0 auto 20px; place-items: center; border-radius: 50%; background: #1a9b67; color: white; font-size: 38px; }
@media (max-width: 520px) { .booking-meta { display: grid; } }