/* 모달 배경 (화면 전체 덮기 & 중앙 정렬) */
#videoModal {
    display: none;
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    background-color: rgba(0, 0, 0, 0.8) !important;
    z-index: 999999 !important;
}

    /* 모달 컨텐츠 상자 */
    #videoModal .modal-content {
        position: relative;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        width: 90%;
        max-width: 800px;
        background: #000;
        padding: 10px;
        border-radius: 8px;
        box-shadow: 0 4px 20px rgba(0,0,0,0.5);
    }

    /* 닫기 버튼 */
    #videoModal .close-btn {
        position: absolute;
        top: -35px;
        right: 0;
        color: #fff;
        font-size: 28px;
        font-weight: bold;
        cursor: pointer;
        background: none;
        border: none;
        padding: 5px;
    }

/* 16:9 반응형 비디오 영역 */
.embed-responsive-16by9 {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
}

    .embed-responsive-16by9 iframe,
    .embed-responsive-16by9 #youtube-player {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
    }