.checkout-main {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 1.5rem;
    align-items: start;
}

@media (max-width: 800px) {
    .checkout-main {
        grid-template-columns: 1fr;
    }
}

.section-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1.1rem;
}

.order-summary,
.payment-log {
    background-color: var(--surface);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 1.5rem;
}

.order-summary-items {
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
    margin-bottom: 1.25rem;
}

.order-summary-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding-bottom: 0.9rem;
    border-bottom: 1px solid var(--border);
}

.order-summary-row-info {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.order-summary-row-name {
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 600;
}

.order-summary-row-sku {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-faint);
    text-transform: uppercase;
}

.order-summary-row-price {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-muted);
    white-space: nowrap;
}

.order-summary-total-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-family: var(--font-mono);
    font-size: 1.1rem;
    font-weight: 600;
    padding: 1rem 0;
    margin-bottom: 1.25rem;
    border-top: 1px solid var(--border);
}

.checkout-fields {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.field-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.field-group label {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
}

.field-group input {
    background-color: var(--bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 0.7rem 0.9rem;
    color: var(--text);
    font-family: var(--font-body);
    font-size: 0.9rem;
}

.field-group input:focus {
    outline: none;
    border-color: var(--accent);
}

.field-group input.invalid {
    border-color: var(--danger);
}

.field-error {
    font-size: 0.75rem;
    color: var(--danger);
    min-height: 1rem;
}

.log-output {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    line-height: 1.6;
    color: var(--text-muted);
    background-color: var(--bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1rem;
    max-height: 420px;
    overflow-y: auto;
    white-space: pre-wrap;
    word-break: break-word;
}