/* 簡単なスタイリング */
body {
    font-family: sans-serif;
    display: flex;
    justify-content: center;
    background-color: #f0f2f5;
}
#game-container {
    width: 800px;
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}
h1, h2 {
    text-align: center;
    color: #333;
}
#ui-container {
    display: flex;
    gap: 20px;
}
#reflection-area, #analysis-area {
    flex: 1;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
}
#reflection-data {
    height: 300px;
    overflow-y: scroll;
    background-color: #fafafa;
    padding: 10px;
    font-family: monospace;
    white-space: pre; /* 等幅フォントで整形 */
    border: 1px solid #ddd;
}
.filter-buttons button, #action-buttons button {
    margin: 5px 2px;
    padding: 8px 12px;
    border: none;
    background-color: #007bff;
    color: white;
    border-radius: 4px;
    cursor: pointer;
}
.filter-buttons button:hover, #action-buttons button:hover {
    background-color: #0056b3;
}
#feedback {
    margin-top: 15px;
    padding: 10px;
    border-radius: 4px;
    text-align: center;
    font-weight: bold;
}
.correct {
    background-color: #d4edda;
    color: #155724;
}
.incorrect {
    background-color: #f8d7da;
    color: #721c24;
}
.hidden {
    display: none;
}