.checkout-page { min-height: calc(100vh - 180px); padding: clamp(30px, 5vw, 70px) 18px; background: radial-gradient(circle at 15% 10%, #e7f1ff, transparent 35%), #f7f9fd; }
.checkout-layout { width: min(1000px, 100%); margin: auto; display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(270px, .7fr); gap: 25px; align-items: start; }
.checkout-card, .checkout-help, .checkout-success-card { border: 1px solid #dce6f3; border-radius: 22px; background: #fff; box-shadow: 0 20px 50px rgba(19, 50, 90, .09); }
.checkout-card { padding: clamp(25px, 4vw, 42px); }
.checkout-kicker { display: inline-flex; align-items: center; gap: 8px; color: #1c57c8; font-size: 11px; font-weight: 850; letter-spacing: .1em; }
.checkout-card h1, .checkout-success-card h1 { margin: 15px 0 9px; color: #112b4f; font-size: clamp(31px, 3vw, 40px); line-height: 1.12; letter-spacing: -.035em; font-weight: 850; }
.checkout-card > p, .checkout-success-card > p { color: #5c718b; font-size: 14px; line-height: 1.65; }
.checkout-test-banner { display: flex; align-items: flex-start; gap: 11px; margin: 22px 0; padding: 13px 15px; border: 1px solid #f8d398; border-radius: 11px; background: #fff9ea; color: #845415; font-size: 12px; line-height: 1.5; }
.checkout-test-banner i { margin-top: 2px; }
.checkout-line { display: flex; justify-content: space-between; gap: 14px; padding: 16px 0; border-bottom: 1px solid #e6edf5; color: #5d6f86; font-size: 13px; }
.checkout-line strong { color: #173658; text-align: right; }
.checkout-total { align-items: center; margin-bottom: 22px; border-bottom: 0; }
.checkout-total strong { color: #1955c9; font-size: 28px; }
.checkout-pay-button { display: inline-flex; align-items: center; justify-content: center; gap: 9px; width: 100%; min-height: 54px; padding: 13px 18px; border: 0; border-radius: 11px; background: #245ee0; box-shadow: 0 10px 23px rgba(36, 94, 224, .19); color: #fff !important; font-size: 14px; font-weight: 800; text-align: center; cursor: pointer; text-decoration: none; }
.checkout-pay-button:hover { background: #174bb5; color: #fff; }
.checkout-pay-button:disabled { opacity: .65; cursor: wait; }
.checkout-status { min-height: 20px; margin: 13px 0 0 !important; color: #46617e !important; font-size: 12px !important; text-align: center; }
.checkout-status.error { color: #b42318 !important; }
.checkout-back { display: flex; align-items: center; justify-content: center; gap: 7px; margin-top: 19px; color: #245ab9; font-size: 12px; font-weight: 750; text-decoration: none; }
.checkout-help { padding: 27px; }
.checkout-help > span { display: grid; place-items: center; width: 48px; height: 48px; border-radius: 13px; background: #eaf2ff; color: #245ee0; font-size: 19px; }
.checkout-help h2 { margin: 18px 0 13px; color: #173457; font-size: 19px; font-weight: 800; }
.checkout-help ol { display: grid; gap: 11px; margin: 0 0 22px; padding-left: 19px; color: #4b617c; font-size: 12px; line-height: 1.5; }
.checkout-help > div { display: flex; align-items: flex-start; gap: 10px; padding: 15px 0; border-top: 1px solid #e8eef6; }
.checkout-help > div > i { margin-top: 2px; color: #2259ca; }
.checkout-help > div p { margin: 0; min-width: 0; }
.checkout-help strong, .checkout-help small { display: block; overflow-wrap: anywhere; }
.checkout-help strong { color: #173457; font-size: 12px; }
.checkout-help small { margin-top: 3px; color: #60738b; font-size: 11px; }
.checkout-support { margin: 0; color: #60738b; font-size: 12px; }
.checkout-support a { color: #245ee0; font-weight: 750; }
.checkout-success-page { display: grid; place-items: center; }
.checkout-success-card { width: min(560px, 100%); padding: clamp(32px, 5vw, 52px); text-align: center; }
.checkout-success-icon { display: grid; place-items: center; width: 75px; height: 75px; margin: 0 auto 20px; border-radius: 50%; background: #e6f8ef; color: #079560; font-size: 36px; }
.checkout-success-card > p { margin-bottom: 25px; }
@media (max-width: 750px) { .checkout-layout { grid-template-columns: 1fr; } .checkout-help { order: 2; } }
@media (max-width: 500px) { .checkout-page { padding: 20px 13px 35px; } .checkout-card, .checkout-help, .checkout-success-card { border-radius: 17px; } .checkout-card { padding: 23px 20px; } .checkout-line { font-size: 12px; } }