.checkout-button { width: 100%; justify-content: center; }
.checkout-button:disabled { opacity: .65; cursor: wait; }
.secure-checkout-panel { margin: 42px 0 0; padding: 30px 32px; border: 1px solid var(--line-soft); border-radius: 22px; background: #fff; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.secure-checkout-panel h2 { margin: 0; font-size: 27px; letter-spacing: -.045em; }
.secure-checkout-panel p { margin: 8px 0 0; color: var(--muted); line-height: 1.55; max-width: 700px; }
.secure-checkout-mark { padding: 12px 18px; border-radius: 12px; background: #635bff; color: #fff; font-weight: 750; font-size: 22px; letter-spacing: -.04em; }
.billing-notice { margin-top: 14px; min-height: 20px; color: var(--red); font-size: 13px; }
.checkout-result { min-height: 100vh; display: grid; place-items: center; padding: 30px; background: #f5f5f7; }
.checkout-result > section { width: min(640px, 100%); padding: 54px; border: 1px solid var(--line-soft); background: #fff; border-radius: 30px; box-shadow: 0 30px 100px rgba(0,0,0,.08); text-align: center; }
.checkout-result h1 { margin: 22px 0 10px; font-size: clamp(38px, 7vw, 58px); line-height: 1; letter-spacing: -.06em; }
.checkout-result p { margin: 0 auto; max-width: 500px; color: var(--muted); line-height: 1.55; font-size: 17px; }
.checkout-icon { width: 72px; height: 72px; margin: auto; border-radius: 50%; display: grid; place-items: center; background: #e8f5ec; color: var(--green); font-size: 31px; font-weight: 700; }
.checkout-icon.neutral { background: #f1f1f4; color: #6e6e73; }
.checkout-detail { margin: 24px auto 0; padding: 18px; border-radius: 16px; background: #f7f7f9; display: grid; gap: 5px; }
.checkout-detail span { color: var(--muted); font-size: 13px; }
.billing-admin-grid { margin-top: 28px; display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.billing-health-body { padding: 10px 20px 20px; }
.billing-check { min-height: 54px; display: grid; grid-template-columns: 28px 1fr auto; gap: 12px; align-items: center; border-bottom: 1px solid var(--line-soft); font-size: 13px; }
.billing-check:last-child { border-bottom: 0; }
.billing-check-icon { width: 24px; height: 24px; border-radius: 50%; display: grid; place-items: center; font-size: 11px; font-weight: 800; }
.billing-check-icon.ok { background: #e8f5ec; color: var(--green); }
.billing-check-icon.missing { background: #fff2df; color: var(--orange); }
.billing-check b { font-size: 12px; }
.billing-action-body { padding: 24px; }
.billing-action-body h3 { margin: 0; font-size: 24px; letter-spacing: -.04em; }
.billing-action-body p { color: var(--muted); line-height: 1.55; }
.billing-admin-message { min-height: 20px; font-size: 12px; color: var(--muted); }
.billing-plan-row { min-height: 68px; padding: 14px 20px; display: grid; grid-template-columns: 1.2fr 1fr 90px; gap: 16px; align-items: center; border-top: 1px solid var(--line-soft); }
.billing-plan-row > div { display: grid; gap: 4px; }
.billing-plan-row span { color: var(--muted); font-size: 12px; }
.billing-plan-row code { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: #424245; font-size: 11px; }
.billing-webhook { padding: 22px; }
.billing-webhook code { display: inline-block; padding: 10px 12px; border-radius: 10px; background: #f3f3f6; word-break: break-all; }
.billing-webhook p { margin: 14px 0 0; color: var(--muted); line-height: 1.55; font-size: 13px; }
.billing-skeleton { height: 42px; margin: 12px 0; border-radius: 10px; background: linear-gradient(90deg,#f1f1f3,#fafafa,#f1f1f3); background-size: 200% 100%; animation: billingPulse 1.2s infinite; }
@keyframes billingPulse { to { background-position: -200% 0; } }
@media (max-width: 900px) {
  .billing-admin-grid { grid-template-columns: 1fr; }
  .billing-plan-row { grid-template-columns: 1fr; gap: 7px; }
  .secure-checkout-panel { align-items: flex-start; flex-direction: column; }
  .checkout-result > section { padding: 36px 24px; }
}