/* 基本スタイル */
body, html {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    display: flex;
    height: 100vh;
}

#container {
    display: flex;
    height: 100%;
    width: 100%;
}

/* サイドバー */
#sidebar {
    width: 300px;
    background-color: #f4f4f4;
    padding: 20px;
    box-shadow: -2px 0 5px rgba(0, 0, 0, 0.2);
    overflow-y: auto;
}

#sidebar h2, #sidebar h3 {
    margin-top: 0;
}

#sidebar button {
    width: 100%;
    padding: 10px;
    margin: 5px 0;
    cursor: pointer;
}

canvas {
    border: 1px solid black;
    flex-grow: 1;
}