body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f5f6f8;
  color: #1f2937;
}

.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 20px;
}

.card {
  background: #ffffff;
  border: 1px solid #d1d5db;
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 16px;
}

h1,
h2,
h3,
h4 {
  margin: 0 0 12px;
}

p {
  margin: 0 0 10px;
}

a {
  color: #1d4ed8;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.markdown-content h1 {
  font-size: 30px;
  margin-top: 8px;
}

.markdown-content h2 {
  font-size: 24px;
  margin-top: 20px;
}

.markdown-content h3 {
  font-size: 20px;
  margin-top: 18px;
}

.markdown-content p {
  margin: 0 0 10px;
  line-height: 1.45;
}

.markdown-content a {
  color: #1d4ed8;
}