body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
  background-color: #f8f9fa;
  color: #212529;
  padding: 2rem 1rem;
  margin: 0;
}

main {
  max-width: 650px;
  margin: 2rem auto;
  background: #ffffff;
  padding: 2.5rem;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.04);
}

h1 {
  color: #dc3545;
  margin-top: 0;
}

h2 {
  font-size: 1.3rem;
  color: #495057;
}

blockquote {
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
  border-radius: 0 8px 8px 0;
}

.chat-log {
  border-left: 4px solid #007bff;
  background-color: #f0f4f8;
}

.time {
  color: #6c757d;
  font-size: 0.85rem;
}

.inner-thought {
  border-left: 4px solid #6c757d;
  background-color: #f1f3f5;
  font-style: italic;
}

.rank {
  font-size: 0.85rem;
  color: #868e96;
  display: block;
}

.message {
  margin-top: 0.5rem;
  margin-bottom: 0;
}

.solution-box {
  background-color: #e6f4ea;
  border: 1px solid #34a853;
  padding: 1.5rem;
  border-radius: 8px;
  margin-top: 2rem;
}

.solution-box h3 {
  margin-top: 0;
  color: #137333;
}

ul.examples {
  list-style: none;
  padding: 0;
  margin: 0;
}

ul.examples li {
  margin: 0.75rem 0;
  padding: 0.5rem;
  border-radius: 4px;
  display: flex;
  align-items: center;
}

.icon {
  margin-right: 0.5rem;
}

.bad {
  background-color: #fce8e6;
  color: #c5221f;
  font-weight: 500;
}

.good {
  background-color: #e6f4ea;
  color: #137333;
  font-weight: 500;
}

hr {
  border: 0;
  border-top: 1px solid #dee2e6;
  margin: 2.5rem 0;
}

.links {
  font-size: 0.9rem;
  color: #6c757d;
}

.links a {
  color: #007bff;
  text-decoration: none;
}

.links a:hover {
  text-decoration: underline;
}

.links h5 {
  margin: 0.5rem 0;
  font-weight: normal;
}