.coupon-image-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.coupon-image-modal[hidden] {
    display: none;
}

.coupon-image-modal__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    cursor: pointer;
}

.coupon-image-modal__dialog {
    position: relative;
    width: 90vw;
    max-width: 600px; /* PCでの最大幅を制限 */
    max-height: 90vh;
    background-color: #fff;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    z-index: 1;
}

.coupon-image-modal__close {
    position: absolute;
    top: -10px;
    right: -10px;
    width: 30px;
    height: 30px;
    background-color: #fff;
    border: 1px solid #ccc;
    border-radius: 50%;
    font-size: 20px;
    line-height: 28px;
    text-align: center;
    cursor: pointer;
    z-index: 2;
}

.coupon-image-modal__content {
    overflow: auto;
    max-height: calc(90vh - 40px); /* padding分を引く */
}

.coupon-image-modal__image-wrap {
    text-align: center; /* 画像を中央揃えに */
    margin-bottom: 1rem;
}

.coupon-image-modal__description {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--swell-border_color, #eee);
    font-size: 0.9rem;
    line-height: 1.6;
    white-space: pre-wrap;
}

.coupon-image-modal__description p:last-child {
    margin-bottom: 0;
}

.coupon-image-modal__content img {
    max-width: 100%;
    height: auto;
    display: block;
}

body.barom-coupon-modal-open {
    overflow: hidden;
}