body {
  margin: 0;
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial,
    sans-serif;
  line-height: 1.6;
  background: #f6f7fb;
  color: #1f2937;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 24px 16px 48px;
}

.card {
  background: #ffffff;
  border-radius: 12px;
  padding: 24px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.08);
}

h1,
h2 {
  line-height: 1.3;
  margin-top: 0;
  color: #111827;
}

h2 {
  margin-top: 28px;
  margin-bottom: 10px;
  font-size: 1.2rem;
}

p {
  margin: 10px 0;
}

ul {
  padding-left: 22px;
  margin: 8px 0;
}

li {
  margin: 6px 0;
}

a {
  color: #2563eb;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.meta {
  font-size: 0.95rem;
  color: #4b5563;
}

.nav-link {
  display: inline-block;
  margin-top: 12px;
  font-weight: 600;
}

@media (max-width: 640px) {
  .card {
    padding: 18px;
    border-radius: 10px;
  }
}