body {
    margin: 0;
    padding: 0;
    overflow: hidden;
    font-family: Arial, sans-serif;
}

#scene-container {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 1;
}

#ui-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    padding: 20px;
    box-sizing: border-box;
    z-index: 2;
    color: white;
    pointer-events: none;
    display: flex;
    flex-direction: column;
    align-items: center;
}

#info {
    background-color: rgba(0, 0, 0, 0.5);
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 20px;
    text-align: center;
}

#vr-button {
    background-color: #4285F4;
    border: none;
    color: white;
    padding: 15px 30px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    margin: 10px 0;
    cursor: pointer;
    border-radius: 25px;
    transition: background-color 0.3s ease;
    pointer-events: auto;
}

#vr-button:hover {
    background-color: #3367D6;
}

#vr-button:disabled {
    background-color: #cccccc;
    cursor: not-allowed;
}

#controls-info {
    background-color: rgba(0, 0, 0, 0.5);
    padding: 15px;
    border-radius: 10px;
    margin-top: 20px;
    max-width: 300px;
}

#controls-info h2 {
    margin-top: 0;
    font-size: 18px;
}

#controls-info p {
    margin: 5px 0;
    font-size: 14px;
}

@media (max-width: 600px) {
    #ui-container {
        padding: 10px;
    }
    
    #info {
        padding: 10px;
    }
    
    #vr-button {
        padding: 10px 20px;
    }
}