.payment-shell { min-height: 100vh; background: #f7f9fa; color: #2b3c4e; font-family: 'Mulish', sans-serif; }
.payment-shell-header { padding: 24px max(24px, calc((100% - 1120px) / 2)); background: #fff; border-bottom: 1px solid #e4e9ed; }
.payment-shell-header img { object-fit: contain; object-position: left; }
.payment-shell-body { max-width: 800px; margin: 0 auto; padding: 48px 24px 80px; }
.payment-page-title { color: #2b3c4e; font-size: 28px; line-height: 1.3; font-weight: 700; margin: 0 0 24px; }
.payment-panel { max-width: 752px; margin: 24px auto; padding: 32px; background: #fff; color: #2b3c4e; border: 1px solid #e1e7eb; border-radius: 12px; box-shadow: 0 4px 18px #2b3c4e08; }
.payment-panel-heading { display: flex; gap: 16px; align-items: flex-start; margin-bottom: 20px; }
.payment-panel-heading h2 { margin: 0; color: #2b3c4e; font-size: 24px; font-weight: 700; line-height: 1.35; }
.payment-status-mark { display: flex; align-items: center; justify-content: center; flex: 0 0 44px; height: 44px; border-radius: 50%; background: #eaf1f7; color: #315a7b; font-size: 24px; font-weight: 700; }
.payment-panel-attention .payment-status-mark { background: #fff2db; color: #865814; }
.payment-panel-success .payment-status-mark { background: #e7f4ec; color: #267144; }
.payment-amount { margin: 8px 0 0; font-size: 20px; font-weight: 700; }
.payment-amount span { font-size: 15px; font-weight: 400; color: #596878; }
.payment-message { font-size: 16px; line-height: 1.7; margin: 0 0 24px; }
.payment-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.payment-button { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 10px 20px; border: 1px solid #267144; border-radius: 24px; background: #267144; color: #fff; font: inherit; font-weight: 700; text-decoration: none; cursor: pointer; text-align: center; }
.payment-button:hover { color: #fff; background: #1c5834; border-color: #1c5834; }
.payment-button-secondary { background: #fff; color: #2b3c4e; border-color: #bcc9d2; }
.payment-button-secondary:hover { background: #edf3f0; color: #2b3c4e; border-color: #267144; }
.payment-button:disabled { opacity: .6; cursor: wait; }
.payment-button:focus-visible, .payment-text-action:focus-visible, .payment-details summary:focus-visible { outline: 3px solid #315a7b; outline-offset: 4px; }
.payment-text-action { color: #267144; font-weight: 700; text-underline-offset: 3px; }
.payment-text-action + .payment-text-action { margin-left: 16px; }
.payment-details { margin-top: 28px; padding-top: 20px; border-top: 1px solid #e4e9ed; font-size: 14px; line-height: 1.7; }
.payment-details summary { cursor: pointer; font-weight: 700; }
.payment-details p { margin: 12px 0 0; }
.payment-reference { overflow-wrap: anywhere; }
.payment-updated { margin: 20px 0 0; font-size: 13px; line-height: 1.6; color: #596878; }
.payment-notice { max-width: 752px; margin: 24px auto; padding: 20px 24px; border: 1px solid #e4d4b6; border-radius: 8px; background: #fffbf3; color: #604719; line-height: 1.7; }
.payment-notice p { margin: 0 0 12px; }
.payment-page-actions { display: flex; justify-content: flex-end; margin-top: 20px; }
@media (max-width: 600px) {
    .payment-shell-body { padding: 28px 16px 48px; }
    .payment-shell-header { padding: 16px; }
    .payment-panel { padding: 24px 20px; margin: 20px auto; }
    .payment-panel-heading h2 { font-size: 21px; }
    .payment-actions { align-items: stretch; flex-direction: column; }
    .payment-actions .payment-text-action { text-align: center; padding: 8px; }
}