body {
    font-family: Arial, sans-serif;
    background-color: #f5f5f5;
    margin: 20px;
    text-align: center;
}

h1 {
    margin-bottom: 20px;
    color: #333;
}

#chartContainer {
    max-width: 900px;
    margin: 0 auto;
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 10px;
    background-color: white;
}

#chartContainer.fullscreen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 9999;
    padding: 20px;
    background-color: #fff;
}

#buttonsContainer {
    margin-bottom: 15px;
}

button {
    padding: 6px 12px;
    margin: 0 4px 10px 0;
    cursor: pointer;
    border-radius: 4px;
    border: 1px solid #888;
    background-color: #eee;
    transition: background-color 0.2s;
}

button:hover {
    background-color: #ddd;
}

button.active {
    background-color: #4CAF50;
    color: white;
    border-color: #3e8e41;
}


#fullscreenBtn {
    margin-bottom: 10px;
    background-color: #4CAF50;
    color: white;
    border: none;
}

#fullscreenBtn:hover {
    background-color: #45a049;
}

canvas {
    width: 100% !important;
    height: 400px !important;
}

