/* ページ上部にスクロールするボタン */
/* 初期設定は非表示 */
#movie-ad {
    display: flex;
    position: fixed;
    background-color: rgba(0, 0, 0, 0.8);
    
    transition:
        background-color 0.2s ease-in-out,
        opacity 0.5s ease-in-out,
        transform 0.5s ease-in-out,
        box-shadow 0.2s ease-in-out;

    opacity: 0;

    height: 5rem;
    width: 20rem;
    max-width: 90vw;
    bottom: -4rem;
    left: 50%;
    transform: translate(-50%, 6rem);
    padding: 0 0 2rem 0;

    z-index: 400;
    border-radius: 0.5rem 0.5rem 0 0;
    box-shadow: 0 0 5px rgba(128, 128, 128, 0.75);
    overflow: hidden;

    color: white;
    text-align: center;
    text-decoration: none;

    caret-color: transparent;
}
#movie-ad:hover {
    background-color: black;
    box-shadow: 0 0 10px rgba(128, 128, 128);
    cursor: pointer;
}
#movie-ad > .btn-thumbnail-img {
    height: 3rem;
    width: calc(3rem * 16 / 9);
    overflow: hidden;
    position: relative;
}
#movie-ad > .btn-thumbnail-img > img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    flex: none;

    transition: all 0.2s ease-out;
}
#movie-ad:hover > .btn-thumbnail-img > img {
    transform-origin: center center;
    transform: scale(1.2);
}
#movie-ad > .btn-text {
    width: 70%;
    padding: 0.25rem 0rem;
    
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: top;
    gap: 0.25rem;
}
#movie-ad > .btn-text > .content-title {
    width: 100%;
    font-size: 1rem;
    font-weight: bold;
    border-bottom: solid 2px gray;
}
#movie-ad > .btn-text > .content-title > img {
    height: 0.8rem;
}
#movie-ad > .btn-text > .content-explanation {
    font-size: 0.8rem;
    font-weight: normal;
    margin: 0 0 0.25rem 0;
    text-indent: 0;
}
#movie-ad > .btn-thumbnail-img > video {
    position: absolute;
    inset: 0;

    width: 100%;
    height: 100%;

    object-fit: cover;

    opacity: 0;
    z-index: 1;
    pointer-events: none;

    transition: opacity 0.5s ease;
}
#movie-ad > .btn-thumbnail-img > video.playing {
    opacity: 1;
}

/* Javascriptで設定した高さだけスクロールすると表示 */
#movie-ad.show {
    opacity: 1;
    transform: translate(-50%, 0);
}

@media print {
    .movie-ad {
        display: none;
    }
}