body {
    margin: 0;
    font-family: Arial, sans-serif;
    height: 100%;
}
.video-container {
    position: relative;
    width: 100%;
    height: calc(80vh - 10px);
    background: #000;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}
iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
    z-index: 1;
}
.video-logo {
    position: absolute;
    top: 2px; 
    right: 2px; 
    width: 60px;
    height: auto;
    z-index: 2; 
    pointer-events: none; 
    pointer-events: auto;

}
.navigation-buttons {
    display: flex;
    justify-content: space-between;
    margin-top: 10px;
}
.description {
    text-align: center;
    margin-top: 20px;
}
#lesson-title {
    display: none;
}
/** Barra Lateral */
::-webkit-scrollbar {
    width: 2px;
}
::-webkit-scrollbar-track {
    background: #ffffff;
}
::-webkit-scrollbar-thumb {
    background-color: #ffffff;
    border-radius: 6px;
    border: 2px solid;
}