.checkout-page {
    max-width: 1000px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.checkout-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.checkout-back-link {
    font-size: 0.9rem;
    opacity: 0.7;
}

.checkout-layout {
    display: grid;
    grid-template-columns: 1fr 360px;
    gap: 2rem;
    margin-top: 1.5rem;
    align-items: start;
}

.checkout-forms {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.checkout-section {
    background: var(--surface-alt, rgba(255, 255, 255, 0.03));
    border: 1px solid var(--border-color, rgba(255, 255, 255, 0.08));
    border-radius: 12px;
    padding: 1.25rem;
}

.checkout-section h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.checkout-summary {
    background: var(--surface-alt, rgba(255, 255, 255, 0.03));
    border: 1px solid var(--border-color, rgba(255, 255, 255, 0.08));
    border-radius: 12px;
    padding: 1.25rem;
    position: sticky;
    top: 2rem;
}

.checkout-summary h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.checkout-items-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.checkout-item-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
}

.checkout-item-name {
    opacity: 0.85;
}

.checkout-totals {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.checkout-total-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
}

.checkout-grand-total {
    font-size: 1.05rem;
    padding-top: 0.5rem;
    border-top: 1px solid var(--border-color, rgba(255, 255, 255, 0.08));
    margin-top: 0.25rem;
}

.checkout-auth-required,
.checkout-empty,
.checkout-success {
    text-align: center;
    padding: 3rem 1rem;
}

@media (max-width: 768px) {
    .checkout-layout {
        grid-template-columns: 1fr;
    }

    .checkout-summary {
        position: static;
    }
}