/* Main content */
main.container {
  flex: 1;
  background-color: #ffffff;
  padding: 2rem;
  border-radius: 6px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.05);
}

main h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
  border-bottom: 2px solid #2c3e50;
  padding-bottom: 0.3rem;
}

main article p {
  font-size: 1rem;
  color: #444;
}

/* Content area */
main {
  margin-left: 200px;
  padding: 1rem;
}

/* Responsive main */
@media (max-width: 900px) {
  main.container {
    margin: 0;
  }
}

@media (max-width: 600px) {
  main {
    margin-left: 0;
    padding: 1rem 0.5rem;
  }
}