.lecture-thumbnail-container {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    border-radius: 8px;
    background: #000;
    cursor: pointer;
}

.lecture-thumbnail,
.lecture-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    border-radius: 8px;
    border: none;
}

.play-button-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 3rem;
    color: white;
    background: rgba(0, 0, 0, 0.5);
    border-radius: 50%;
    padding: 0.5rem 0.8rem;
    pointer-events: none;
}

/* Remove this, it's conflicting with object-fit: cover sizing */
/*
.lecture-video {
    width: 100%;
    height: 180px;
    border-radius: 8px;
    border: none;
}
*/