#maiores18-overlay {
    position: fixed;
    z-index: 9999;
    top: 0; left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.9);
    display: flex;
    align-items: center;
    justify-content: center;
}

.maiores18-popup {
    background: #fff;
    padding: 30px;
    border-radius: 8px;
    text-align: center;
    max-width: 400px;
    box-shadow: 0 0 20px rgba(0,0,0,0.5);
}

.maiores18-popup h2 {
    margin-bottom: 10px;
    color: #c00;
}

.maiores18-popup p {
    margin-bottom: 20px;
}

#maiores18-accept {
    background-color: #c00;
    color: #fff;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}