:root {
    --bg-color: #2d3042;
    --font-color: #efefef;
    --link-color: #efefef;
    --link-hover-color: #fff;
}

/*body {*/
/*    margin: 0;*/
/*    padding: 0;*/
/*    font-family: Arial, "Hiragino Kaku Gothic Pro W3", Meiryo, sans-serif;*/
/*    background-color: var(--bg-color);*/
/*    color: var(--font-color);*/
/*    display: flex;*/
/*    align-items: center;*/
/*    justify-content: center;*/
/*    height: 100vh;*/
/*}*/

.video-ad {
    width: 70vw;
    max-width: 900px;
    background-color: var(--bg-color);
    box-shadow: 0 3px 6px rgba(0, 0, 0, 0.16), 0 3px 6px rgba(0, 0, 0, 0.23);
    border-radius: 8px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.video-ad:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.video-container {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 */
    height: 0;
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.video-caption {
    padding: 20px;
    text-align: center;
}

.video-caption h2 {
    margin: 0 0 10px;
    color: var(--link-color);
}

.video-caption p {
    margin: 0;
    color: var(--font-color);
}
body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    color: #333;
    line-height: 1.6;
    margin: 0;
    padding: 0;
}

.presentation {
    max-width: 80%;
    margin: 20px auto;
    padding: 20px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.presentation h1 {
    /*font-size: 3em;*/
    margin-bottom: 5%;
    color: #2d3042;
}

.presentation p {
    margin: 10px 0;
}

.presentation p:first-of-type {
    margin-top: 0;
}

.presentation p:last-of-type {
    margin-bottom: 0;
}
.presentation h3 {
    all: revert !important;
    color: #3f321c !important;
    letter-spacing: .1rem !important;
    margin-top: 2rem !important;
    margin-left: 30px !important;
    height: max-content !important;
    font-size: 1.2rem !important;
}