:root {
  --bg: #f8fafc;
  --panel: #ffffff;
  --text: #111827;
  --muted: #4b5563;
  --accent: #2563eb;
  --line: #dbe4f0;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
}
.container { width: min(1080px, 92%); margin: 0 auto; }
.topnav {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(8px);
  background: color-mix(in srgb, #ffffff 86%, transparent);
  border-bottom: 1px solid var(--line);
}
.topnav .container { display: flex; gap: 16px; align-items: center; justify-content: space-between; padding: 14px 0; }
.brand { font-weight: 700; letter-spacing: .02em; }
.links { display: flex; gap: 14px; flex-wrap: wrap; }
a { color: #1d4ed8; text-decoration: none; }
a:hover { color: #1e40af; }
.page { padding: 52px 0 70px; }
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 22px;
}
.grid { display: grid; gap: 18px; }
.grid.cols-2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
@media (max-width: 840px) { .grid.cols-2 { grid-template-columns: 1fr; } }
h1 { font-size: clamp(28px, 4vw, 42px); margin: 0 0 8px; }
h2 { margin: 0 0 10px; }
p, li { color: var(--muted); line-height: 1.7; }
.kicker { color: var(--accent); font-weight: 600; margin-bottom: 10px; }
.pill {
  display: inline-block;
  border: 1px solid #bfdbfe;
  color: #1e3a8a;
  background: #eff6ff;
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 12px;
  margin-right: 8px;
  margin-bottom: 8px;
}
.blog-list {
  display: grid;
  gap: 14px;
}
.blog-list article {
  margin: 0;
  border: 1px solid #dce7f7;
  background: #f8fbff;
  border-radius: 12px;
  padding: 16px;
}
.blog-list article h2 { margin-bottom: 6px; }
footer { border-top: 1px solid var(--line); margin-top: 42px; padding-top: 14px; color: #6b7280; }