.video-box {
    width: 50%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
}

.video-list-container {
    width: 50%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 15px;
    padding: 20px;
    box-sizing: border-box;
}

.video-player {
    width: 85%;
    height: auto;
    max-height: 90vh;
    border-radius: 12px;
    box-shadow: 0 10px 10px rgba(0, 0, 0, 0.6);
}

.play-overlay {
    position: absolute;
    font-size: 64px;
    color: white;
    opacity: 0.85;
    pointer-events: none;
}

.play-overlay.hidden {
    display: none !important
}

.video-player.loading {
    box-shadow: none !important;
}

.loading-spinner {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 50px;
    height: 50px;
    border: 6px solid #ddd;
    border-top: 6px solid #555;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    z-index: 10;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

#videoContainer {
  position: relative;
}

.video-player.loading {
    box-shadow: none;
}

.spinner {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: none;
    border: 6px solid #f3f3f3;
    border-top: 6px solid #555;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

progress {
    width: 0%;
    height: 6px;
    margin-top: 10px;
    appearance: none;
    transition: width 1s ease;
    opacity: 0;
}

progress::-webkit-progress-bar {
    background-color: #333;
    border-radius: 3px;
}

progress::-webkit-progress-value {
    background-color: #f1c40f;
    border-radius: 3px;
}


.youtube-video-player {
    width: 100%;
    height: 100%;
    border: none;
}

@media (max-width: 700px) {

    /* VIDEO = 30% height */
    .video-box {
        flex-shrink: 0;
        width: 100%;
        height: 30vh;
        justify-content: center;
        align-items: center;
    }

    .video-box-extended {
        height: 36vh;
    }

    .video-player {
        width: 90%;
        max-height: 28vh;
        /* slightly less than container */
    }

    .video-list-container {
        width: 100%;
        height: 56vh;
        justify-content: flex-start;
    }
}