:root {
  --bg: #f8fafc;
  --text: #1f2937;
  --muted: #6b7280;
  --primary: #b45309;
  --card: #ffffff;
  --border: #e5e7eb;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
}

.container {
  width: min(1000px, 92%);
  margin: 0 auto;
}

.site-header {
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 20px 0;
}

.site-header h1 {
  margin: 0 0 6px;
  font-size: 2rem;
}

.tagline {
  margin: 0 0 14px;
  color: var(--muted);
}

nav a {
  text-decoration: none;
  color: var(--primary);
  margin-right: 18px;
  font-weight: 600;
}

main {
  padding: 28px 0;
}

.article-list article {
  background: var(--card);
  border: 1px solid var(--border);
  padding: 18px;
  border-radius: 10px;
  margin-bottom: 16px;
}

.article-list h3 {
  margin-top: 0;
}

.article-list a {
  color: #111827;
  text-decoration: none;
}

.article-list a:hover {
  color: var(--primary);
  text-decoration: underline;
}

.content-page {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 20px 0;
  background: #fff;
  margin-top: 30px;
}

.site-footer p {
  margin: 6px 0;
}