.problem-markdown {
    line-height: 1.7;
    word-wrap: break-word;
    color: #334155;
    font-size: 1rem;
}

.problem-markdown p:last-child {
    margin-bottom: 0;
}

.problem-markdown h1,
.problem-markdown h2,
.problem-markdown h3,
.problem-markdown h4 {
    margin-top: 1.25rem;
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.problem-markdown h2 { font-size: 1.25rem; }
.problem-markdown h3 { font-size: 1.1rem; }

.problem-markdown p {
    margin-bottom: 0.75rem;
}

.problem-markdown pre {
    background-color: #f6f8fa;
    border: 1px solid #e1e4e8;
    border-radius: 12px;
    box-shadow: inset 0 0 0 1px rgba(148, 163, 184, 0.18);
    padding: 12px;
    overflow-x: auto;
}

.problem-markdown code {
    font-family: 'Courier New', Consolas, monospace;
    font-size: 0.9em;
    background-color: #f0f0f0;
    padding: 0.15em 0.35em;
    border-radius: 3px;
}

.problem-markdown pre code {
    background: none;
    padding: 0;
}

.problem-markdown table {
    width: 100%;
    margin-bottom: 1rem;
    border-collapse: collapse;
}

.problem-markdown th,
.problem-markdown td {
    border: 1px solid #dee2e6;
    padding: 8px 12px;
}

.problem-markdown blockquote {
    border-left: 4px solid #3498db;
    padding-left: 1rem;
    color: #555;
    margin-bottom: 1rem;
}

.problem-markdown img {
    max-width: 100%;
    height: auto;
}

.problem-markdown a {
    color: #3498db;
}

/* MathJax rendered formulas */
.problem-markdown mjx-container {
    overflow-x: auto;
    overflow-y: hidden;
    max-width: 100%;
}

.problem-markdown mjx-container[display="true"] {
    display: block;
    margin: 1rem 0;
    text-align: center;
}

.problem-markdown mjx-container[jax="CHTML"] {
    font-size: 110%;
}