.problem-panel {
    flex: 4;
    padding: 20px;
    overflow-y: auto;
    background-color: #f5f5f5;
    border-right: 1px solid #ddd;
}

.problem-title {
    font-size: 1.5rem;
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid #ddd;
}

.problem-difficulty {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: bold;
    margin-left: 8px;
}

.easy {
    background-color: #5cb85c;
    color: white;
}

.medium {
    background-color: #f0ad4e;
    color: white;
}

.hard {
    background-color: #d9534f;
    color: white;
}

pre {
    background-color: #f0f0f0;
    padding: 10px;
    border-radius: 5px;
    overflow-x: auto;
    font-family: 'Courier New', Courier, monospace;
}

code {
    font-family: 'Courier New', Courier, monospace;
    background-color: #f0f0f0;
    padding: 2px 4px;
    border-radius: 3px;
}

.shortcut-info {
    margin-top: 10px;
    padding: 10px;
    background-color: rgba(0, 0, 0, 0.1);
    border-radius: 4px;
    font-size: 12px;
}