/* 팝업 공통 스타일 */
.popup-ad {
    display: flex;
    flex-direction: column;
    max-height: 90vh;
    position: relative;
    z-index: 1000;
}

.popup-ad.auto-size {
    width: auto;
    height: auto;
    max-width: 90vw;
    max-height: 90vh;
}

/* 중앙 정렬 스타일 */
.popup-ad.center-aligned {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.popup-ad .title {
    flex: 0 0 auto;
    padding: 10px;
    background-color: #f5f5f5;
    border-bottom: 1px solid #ddd;
}

.popup-ad .contents {
    margin: 10px;
    text-align: center;
}

.popup-ad .close {
    text-shadow: unset;
    line-height: 1.5;
}

.popup-ad .contents.fr-view {
    flex: 1 1 auto;
    overflow-y: auto;
    min-height: 0;
    max-height: calc(90vh - 120px);
}

.popup-ad .contents.fr-view img {
    max-width: 100%;
    height: auto;
    object-fit: contain;
}

.popup-ad .bottom {
    flex: 0 0 auto;
    margin-top: 10px;
    padding: 10px;
    text-align: center;
    border-top: 1px solid #ddd;
}

/* 팝업 표시 애니메이션 */
.popup-ad.i_show {
    display: flex !important;
    animation: fadeIn 0.3s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}