.coupon-section {
    margin-top: 30px;
}

.coupon-section h3 {
    font-size: 18px;
    margin-bottom: 15px;
    color: #333;
}

/* Style for "利用可能なクーポン" text */
.coupon-section h3,
.coupon-section .coupon-title,
.coupon-section .coupon-header,
.coupon-section .coupon-section-title,
.product-detail-coupon-block h3,
.product-detail-coupon-block .coupon-title,
.product-detail-coupon-block .coupon-header {
    font-size: 14px !important;
    font-weight: 700 !important;
}

.coupon-container {
    display: flex;
    gap: 20px;
    width: 100%;
    box-sizing: border-box;
}

.coupon-card {
    background-color: #688098;
    color: white;
    border-radius: 4px;
    padding: 10px 20px;
    text-align: center;
    /* width: 280px; */ /* Removed fixed width for responsiveness */
    height: 120px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    box-sizing: border-box;
    flex: 1 1 0;
    min-width: 0;
}

.coupon-card .coupon-title {
    font-size: 11px;
    margin-bottom: 2px;
    font-weight: 700;
}

.coupon-card .coupon-value {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
    line-height: 29px;
}

.coupon-card .coupon-details {
    background-color: #FFFFFF;
    color: #444444;
    padding: 8px 10px;
    border-radius: 6px;
    font-size: 10px;
    line-height: 1.4;
    font-weight: 400;
    text-align: left;
}

.coupon-notes {
    margin-top: 15px;
    font-size: 12px;
    color: #444444;
}

/* --- Responsive Add to Cart & Favorite Buttons --- */
.product-actions-container {
    display: flex;
    gap: 16px;
    width: 100%;
    box-sizing: border-box;
    margin-top: 24px;
}

.product-action-buttons {
    display: flex;
    width: 100%;
    gap: 16px;
}

.action-button {
    flex: 1 1 0;
    min-width: 0;
    /* Remove any width: 100% or fixed width here */
}