:root {
    --checkout-ink: #16202b;
    --checkout-muted: #5d6875;
    --checkout-line: #d8dee6;
    --checkout-panel: #ffffff;
    --checkout-canvas: #f4f7f9;
    --checkout-primary: #155c96;
    --checkout-primary-dark: #104875;
    --checkout-impact: #b84b12;
    --checkout-success: #16643b;
    --checkout-error: #a02b2b;
}

body.checkout-page {
    background: var(--checkout-canvas);
    color: var(--checkout-ink);
}

.checkout-nav {
    position: sticky;
    top: 0;
    z-index: 20;
}

.checkout-shell {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
    padding: 32px 0 64px;
}

.checkout-heading {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 24px;
}

.checkout-heading h1 {
    margin: 0;
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    line-height: 1.15;
}

.checkout-heading p {
    max-width: 720px;
    margin: 8px 0 0;
    color: var(--checkout-muted);
}

.network-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    flex: 0 0 auto;
    padding: 8px 10px;
    border: 1px solid #abd0bb;
    border-radius: 6px;
    background: #eef9f2;
    color: var(--checkout-success);
    font-size: 0.82rem;
    font-weight: 700;
}

.network-pill::before {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--checkout-success);
    content: "";
}

.checkout-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.3fr) minmax(320px, 0.7fr);
    gap: 20px;
    align-items: start;
}

.checkout-panel {
    border: 1px solid var(--checkout-line);
    border-radius: 8px;
    background: var(--checkout-panel);
    box-shadow: 0 8px 24px rgba(22, 32, 43, 0.05);
}

.checkout-panel__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 22px;
    border-bottom: 1px solid var(--checkout-line);
}

.checkout-panel__header h2 {
    margin: 0;
    font-size: 1.1rem;
}

.checkout-panel__body {
    padding: 22px;
}

.checkout-review {
    position: sticky;
    top: 92px;
}

.mode-switch {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4px;
    padding: 4px;
    border: 1px solid var(--checkout-line);
    border-radius: 7px;
    background: #edf1f5;
}

.mode-switch button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 42px;
    padding: 8px 12px;
    border: 0;
    border-radius: 5px;
    background: transparent;
    color: #44505d;
    font-weight: 700;
    cursor: pointer;
}

.mode-switch button.is-active {
    background: #ffffff;
    color: var(--checkout-primary);
    box-shadow: 0 1px 4px rgba(22, 32, 43, 0.12);
}

.wallet-panel {
    margin: 18px 0 22px;
    padding: 16px;
    border: 1px solid var(--checkout-line);
    border-radius: 7px;
    background: #f8fafb;
}

.wallet-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.wallet-label {
    margin: 0 0 2px;
    color: var(--checkout-muted);
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
}

.wallet-address {
    margin: 0;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 0.86rem;
    font-weight: 700;
}

.field-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-field {
    min-width: 0;
}

.form-field--wide {
    grid-column: 1 / -1;
}

.form-field label,
.form-label {
    display: block;
    margin-bottom: 7px;
    font-size: 0.88rem;
    font-weight: 750;
}

.form-field input,
.form-field select,
.xdr-output {
    width: 100%;
    min-height: 44px;
    padding: 10px 12px;
    border: 1px solid #b9c3ce;
    border-radius: 6px;
    background: #ffffff;
    color: var(--checkout-ink);
    font: inherit;
}

.form-field input:focus,
.form-field select:focus,
.xdr-output:focus {
    border-color: var(--checkout-primary);
    outline: 3px solid rgba(21, 92, 150, 0.14);
}

.field-help {
    margin: 6px 0 0;
    color: var(--checkout-muted);
    font-size: 0.78rem;
}

.checkbox-row {
    display: grid;
    grid-template-columns: 20px 1fr;
    gap: 10px;
    align-items: start;
    margin-top: 20px;
    padding: 14px;
    border: 1px solid var(--checkout-line);
    border-radius: 6px;
    background: #f8fafb;
}

.checkbox-row input {
    width: 18px;
    height: 18px;
    margin-top: 2px;
}

.checkbox-row label {
    font-size: 0.86rem;
    line-height: 1.5;
}

.checkout-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    min-height: 44px;
    padding: 10px 16px;
    border: 1px solid transparent;
    border-radius: 6px;
    font-weight: 750;
    cursor: pointer;
}

.checkout-button:disabled {
    cursor: not-allowed;
    opacity: 0.58;
}

.checkout-button--primary {
    background: var(--checkout-primary);
    color: #ffffff;
}

.checkout-button--primary:hover:not(:disabled) {
    background: var(--checkout-primary-dark);
}

.checkout-button--secondary {
    border-color: #9ca9b6;
    background: #ffffff;
    color: var(--checkout-ink);
}

.checkout-button--full {
    width: 100%;
}

.checkout-form-actions {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

.status-badge {
    display: inline-flex;
    align-items: center;
    min-height: 26px;
    padding: 4px 8px;
    border-radius: 5px;
    font-size: 0.76rem;
    font-weight: 750;
}

.status-badge--draft {
    background: #edf1f5;
    color: #53606d;
}

.status-badge--ready {
    background: #e8f6ee;
    color: var(--checkout-success);
}

.status-badge--submitted {
    background: #e6f1fa;
    color: var(--checkout-primary);
}

.review-split {
    display: grid;
    gap: 10px;
    margin-bottom: 20px;
}

.review-split__row {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding: 11px 0;
    border-bottom: 1px solid #e7ebef;
}

.review-split__row span {
    color: var(--checkout-muted);
    font-size: 0.86rem;
}

.review-split__row strong {
    text-align: right;
}

.review-split__row--impact strong {
    color: var(--checkout-impact);
}

.review-details {
    display: grid;
    gap: 12px;
    margin: 0;
}

.review-details div {
    display: grid;
    grid-template-columns: 96px 1fr;
    gap: 10px;
}

.review-details dt {
    color: var(--checkout-muted);
    font-size: 0.78rem;
    font-weight: 700;
}

.review-details dd {
    min-width: 0;
    margin: 0;
    overflow-wrap: anywhere;
    font-size: 0.82rem;
    font-weight: 650;
    text-align: right;
}

.atomic-note {
    display: flex;
    gap: 10px;
    margin: 20px 0 0;
    padding: 12px;
    border-left: 3px solid var(--checkout-success);
    background: #f0f8f3;
    color: #244a34;
    font-size: 0.8rem;
}

.checkout-status {
    display: flex;
    align-items: flex-start;
    gap: 9px;
    margin-top: 18px;
    padding: 12px 14px;
    border-radius: 6px;
    background: #edf1f5;
    color: #46515d;
    font-size: 0.84rem;
}

.checkout-status--success {
    background: #e9f6ee;
    color: var(--checkout-success);
}

.checkout-status--error {
    background: #fff0f0;
    color: var(--checkout-error);
}

.xdr-panel,
.receipt-panel {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--checkout-line);
}

.xdr-panel h3,
.receipt-panel h3 {
    margin: 0 0 8px;
    font-size: 1rem;
}

.xdr-output {
    min-height: 116px;
    resize: vertical;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 0.72rem;
}

.inline-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
}

.receipt-line {
    display: grid;
    grid-template-columns: 72px 1fr;
    gap: 10px;
    margin-top: 9px;
    font-size: 0.8rem;
}

.receipt-line span:first-child {
    color: var(--checkout-muted);
    font-weight: 700;
}

.receipt-line code {
    overflow-wrap: anywhere;
}

.policy-strip {
    display: flex;
    justify-content: space-between;
    gap: 18px;
    margin-top: 20px;
    padding: 16px 18px;
    border: 1px solid #d8c8b8;
    border-radius: 7px;
    background: #fffaf4;
}

.policy-strip p {
    margin: 0;
    color: #6c4a30;
    font-size: 0.84rem;
}

.policy-strip a {
    flex: 0 0 auto;
    color: #8e3c10;
    font-weight: 750;
}

.spin {
    animation: checkout-spin 0.8s linear infinite;
}

[hidden] {
    display: none !important;
}

@keyframes checkout-spin {
    to {
        transform: rotate(360deg);
    }
}

@media (max-width: 860px) {
    .checkout-layout {
        grid-template-columns: 1fr;
    }

    .checkout-review {
        position: static;
    }
}

@media (max-width: 620px) {
    .checkout-shell {
        width: min(100% - 22px, 1180px);
        padding-top: 22px;
    }

    .checkout-heading {
        display: block;
    }

    .network-pill {
        margin-top: 14px;
    }

    .field-grid {
        grid-template-columns: 1fr;
    }

    .form-field--wide {
        grid-column: auto;
    }

    .wallet-row,
    .policy-strip {
        align-items: stretch;
        flex-direction: column;
    }

    .checkout-panel__header,
    .checkout-panel__body {
        padding: 17px;
    }

    .mode-switch button {
        font-size: 0.8rem;
    }
}