.video-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
    margin-bottom: 20px;
}
.video-header {
    display: flex;
    justify-content: center;
    vertical-align: middle;
    gap: 10px;
}
.video-header .header-cell {
    text-align: center;
    width: 200px;
    font-weight: bold;
}
.video-row {
    display: flex;
    justify-content: center;
    gap: 5px;
}
.video-group {
    display: flex;
    gap: 10px;
    border: 2px solid #ccc;
    padding: 2.5px;
}
video {
    width: 200px;
    height: auto;
}
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    justify-content: center;
    align-items: center;
    z-index: 1000;
}
.modal video {
    width: 80%;
    height: auto;
    max-height: 90%;
}
.modal .close {
    position: absolute;
    top: 10px;
    right: 20px;
    font-size: 30px;
    color: white;
    cursor: pointer;
}
.warning {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 0, 0, 0.8);
    color: white;
    font-size: 24px;
    font-weight: bold;
    text-align: center;
    padding-top: 20%;
    z-index: 2000;
}
#countdown {
    font-size: 20px;
    margin-top: 20px;
}
hr {
    margin: 30px auto;
    width: 1080px;
    height: 2px;
    background: linear-gradient(to right, #444444, #66ccff);
    border: none;
    border-radius: 2px;
}