.summary-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 1.5rem;
    position: sticky;
    top: 100px;
    box-shadow: var(--shadow-card);
}

.summary-header {
    font-size: 1.25rem;
    font-weight: 800;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 1rem;
    margin-bottom: 1.5rem;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 1rem;
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

.summary-val {
    color: var(--color-text-main);
    font-weight: 500;
}

.summary-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--color-border);
    padding-top: 1.5rem;
    margin-top: 1.5rem;
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--color-text-main);
}

.total-price {
    color: var(--color-accent-amber);
    font-size: 1.5rem;
}

.btn-checkout {
    display: block;
    width: 100%;
    background: linear-gradient(135deg, var(--color-accent-amber) 0%, #d97706 100%);
    color: #fff;
    text-align: center;
    padding: 1rem;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1rem;
    margin-top: 2rem;
    /* Note: We removed 'border: none; cursor: pointer;' as it is now an <a> tag */
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(245, 158, 11, 0.4);
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-checkout:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(245, 158, 11, 0.6);
}

.btn-clear-link {
    display: block;
    width: 100%;
    text-align: center;
    margin-top: 1rem;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    background: none;
    border: none;
    cursor: pointer;
    text-decoration: underline;
}

.btn-clear-link:hover {
    color: var(--color-danger);
}