:root {
  color-scheme: light;
  --bg: #fafafa;
  --fg: #111;
  --muted: #555;
  --border: rgba(0, 0, 0, 0.08);
  --accent: #6a11cb;
  --accent-2: #2575fc;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--fg);
  font: 15px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

header {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  padding: 16px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

header .brand {
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.01em;
}

nav {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

nav a {
  color: rgba(255, 255, 255, 0.92);
  text-decoration: none;
  padding: 6px 12px;
  border-radius: 999px;
  font-weight: 500;
  font-size: 14px;
}

nav a:hover {
  background: rgba(255, 255, 255, 0.14);
}

nav a.active {
  background: rgba(255, 255, 255, 0.22);
  color: #fff;
}

main {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 22px 64px;
}

main h1 {
  font-size: 30px;
  margin: 0 0 8px;
  letter-spacing: -0.02em;
}

main .lede {
  color: var(--muted);
  margin: 0 0 24px;
  font-size: 16px;
}

article {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px 24px;
  margin-bottom: 14px;
}

article h2 {
  margin: 0 0 4px;
  font-size: 18px;
}

article time {
  display: block;
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 10px;
}

article p { margin: 0; }

.tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  background: rgba(106, 17, 203, 0.1);
  color: var(--accent);
  margin-bottom: 12px;
}

.callout {
  border: 1px dashed var(--border);
  border-radius: 12px;
  padding: 14px 18px;
  background: #fff;
  color: var(--muted);
  font-size: 14px;
  margin-top: 24px;
}

.callout code {
  background: rgba(0, 0, 0, 0.06);
  padding: 1px 6px;
  border-radius: 4px;
}