ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 15px;
  list-style: none;
  padding: 0;
  margin: 10px 0;
}

ul li {
  margin: 0%;
}

.article-card {
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 20px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  margin: 10px 0;
  padding: 16px;
}

.article-card h2 {
  color: var(--text-color-primary);
  margin-top: 20px;
  border-bottom: 2px solid var(--secondary-color);
  padding-bottom: 4px;
}

.article-card h3 {
  margin-top: 16px;
  color: var(--primary-color);
}

.article-card p,
.article-card li {
  color: var(--text-color-primary);
  line-height: 1.6;
}

pre {
  background: var(--primary-color);
  padding: 10px;
  border-radius: 6px;
  overflow-x: auto;
  font-family: monospace;
  font-size: 13px;
  white-space: pre-wrap;
  word-break: break-word;
  line-height: 2;
}

code {
  background: var(--accent-color);
  padding: 2px 5px;
  border-radius: 4px;
}

@media (max-width: 600px) {
  .article-card {
    width: 100%;
    padding: 10px;
  }

  ul {
    flex-direction: column;
    align-items: center;
    gap: 10px;
  }
  ul li a {
    display: block;
    text-align: center;
  }
}