body, html {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.container {
    position: relative;
    width: 100%;
    height: 100%;
}

.sliders {
    position: absolute;
    top: 20px; 
    left: 20px; 
    display: flex;
    flex-direction: column; 
    z-index: 2; 
}

canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.modal {
    display: block; 
    position: fixed; 
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%; 
    height: 100%;
    overflow: auto; 
    background-color: rgba(0, 0, 0, 0.7); 
}

.modal-content {
    background-color: #ffffff; 
    margin: 10% auto; 
    padding: 30px; 
    border-radius: 8px; 
    border: 1px solid #888;
    width: 70%; 
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3); 
    font-family: Arial, sans-serif; 
}


.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
}

.close:hover,
.close:focus {
    color: #ff0000; 
    text-decoration: none;
    cursor: pointer;
}