body {
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    height: 100vh;
    font-family: 'San Francisco', Arial, sans-serif;
}



#controls-top {
    height: 60px;
    display: flex;
    align-items: center;
    padding: 0 20px;
    background-color: #f0f0f0;
}

#canvas-container {
    flex: 1;
    display: flex;
    flex-direction: column;
}

#controls-bottom {
    height: 80px;
    background-color: #f0f0f0;
    display: flex;
    align-items: center;
    justify-content: center;
}

button {
    background-color: #aaaaaa;
    border: none;
    color: white;
    padding: 10px 20px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 14px;
    margin-right: 10px;
    cursor: pointer;
    border-radius: 10px;
}

button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}