.aluno-aula-background {
    background: #030617;
    height: auto;
    display: block;
    justify-content: center;
    align-items: center;
    width: 100%;
    position: absolute;
    left: 0px;
    top: 0px;
}

.aluno-aula-concluir-button {
    background: #0C0F1E;
    width: 182px;
    height: 45px;
    border-radius: 20px;
    font-size: 14px;
    cursor: pointer;
    color: #4C5687;
    font-weight: bold;
    object-fit: cover;
    display: block;
    margin: 0 auto;
    margin-top: 20px;
    position: relative;
}

.aluno-aula-video-container {
    max-width: calc(100% - 40px); /* margem lateral de 30px em cada lado */
    margin: 20px auto; /* centraliza e aplica margem vertical */
    background-color: #030617;
    border-radius: 30px;
    overflow: hidden;
    position: relative;
    aspect-ratio: 16 / 9;
    max-height: 600px;
    width: 100%;
}

.aluno-aula-video-container iframe {
    width: 100%;
    height: 100%;
    border: 0;
    display: block;
}