:root {
  --bg: #f6f7f9;
  --card: #ffffff;
  --ink: #1b1f24;
  --muted: #646d78;
  --line: #dfe3e8;
  --accent: #1f6feb;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 15px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.wrap { max-width: 920px; margin: 0 auto; padding: 0 20px; }

header {
  background: var(--card);
  border-bottom: 1px solid var(--line);
  margin-bottom: 32px;
}

header .wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  height: 56px;
}

.mark { font-weight: 650; letter-spacing: -0.01em; }

.tag {
  color: var(--muted);
  font-size: 13px;
  padding-left: 12px;
  border-left: 1px solid var(--line);
}

nav { margin-left: auto; display: flex; gap: 18px; }

nav a, .dl {
  color: var(--accent);
  text-decoration: none;
  font-size: 14px;
}

nav a:hover, .dl:hover { text-decoration: underline; }

h1 { font-size: 24px; margin: 0 0 8px; letter-spacing: -0.02em; }
h2 { font-size: 16px; margin: 0 0 4px; }

.lede { color: var(--muted); margin: 0 0 28px; max-width: 62ch; }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin-bottom: 36px;
}

.cards article {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
}

.cards p { margin: 0 0 12px; font-size: 14px; }

.ver { color: var(--muted); font-size: 12px !important; margin-bottom: 8px !important; }

.muted { color: var(--muted); cursor: default; }
.muted:hover { text-decoration: none; }

pre {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px 16px;
  overflow-x: auto;
  font-size: 13px;
}

code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }

.note { color: var(--muted); font-size: 14px; }

footer {
  margin-top: 48px;
  padding: 20px 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}