body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  margin: 0;
  background: #fff;
  color: #222;
  line-height: 1.6;
}
a { color: #e36c0a; text-decoration: none; }
a:hover { text-decoration: underline; }
.container { max-width: 960px; margin: auto; padding: 20px; }
.site-header {
  border-bottom: 1px solid #ddd;
  background: #fff;
}
.header-content {
  display: flex; justify-content: space-between; align-items: center;
}
.logo-title { display: flex; align-items: center; gap: 10px; }
.logo { height: 40px; }
nav a { margin-left: 15px; font-weight: 500; }
nav .btn {
  background: #e36c0a; color: white; padding: 6px 12px; border-radius: 4px;
}
h1,h2,h3 { font-weight: 600; }
.columns { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
ul { padding-left: 20px; }
.site-footer {
  border-top: 1px solid #ddd;
  text-align: center; font-size: 0.9em; color: #666; padding: 15px 0; margin-top: 40px;
}
@media (max-width: 700px) {
  .columns { grid-template-columns: 1fr; }
  nav { display: flex; flex-wrap: wrap; gap: 10px; }
}