.source-section {
  margin: 24px 0;
  padding: 16px;
  background: #ffffff;
  border: 1px solid #cbd5e1;
  border-radius: 12px;
  color: #0f172a;
  font-family: Arial, Helvetica, sans-serif;
}

.source-section h2,
.source-section h3 {
  margin: 0 0 8px;
}

.source-section > p {
  margin: 0 0 12px;
}

.source-panel {
  margin: 12px 0 0;
  padding: 14px;
  background: #0f172a;
  border: 1px solid #334155;
  border-radius: 8px;
  overflow: auto;
  white-space: pre;
}

.source-panel code {
  display: block;
  padding: 0;
  background: transparent;
  border-radius: 0;
  color: #e2e8f0;
  font-family: "Courier New", Courier, monospace;
  font-size: 14px;
  line-height: 1.45;
  white-space: pre;
}

.card .source-panel code {
  display: block;
  padding: 0;
  background: transparent;
  border-radius: 0;
  color: #e2e8f0;
}

.hint-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  margin: 12px 0 0;
  padding: 8px;
  background: #f8fafc;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
}

.hint-item {
  margin: 4px;
  padding: 8px 10px;
  background: #ffffff;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  font-size: 14px;
}

@media (max-width: 560px) {
  .hint-item {
    width: 100%;
  }

  .source-section {
    margin: 16px 0;
    padding: 12px;
  }
}