:root {
  --bg: #0a0a0a;
  --bg-card: #141416;
  --bg-code: #0e1114;
  --fg: #e6e6e6;
  --fg-muted: #8a8a93;
  --fg-dim: #5a5a63;
  --accent: #7ee787;
  --accent-dim: #3fb950;
  --border: #22232a;
  --red: #f85149;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
code, pre, .mono {
  font-family: "SF Mono", Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 13px;
}
code {
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 6px;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: 760px; margin: 0 auto; padding: 48px 24px 96px; }

header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 56px; }
.logo { font-weight: 700; font-size: 18px; letter-spacing: -0.01em; }
.logo .dot { color: var(--accent); }
.logo a { color: var(--fg); }
.logo a:hover { text-decoration: none; }
nav a { color: var(--fg-muted); margin-left: 24px; font-size: 14px; }
nav a:hover { color: var(--fg); text-decoration: none; }

article h1 {
  font-size: 34px;
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 700;
  margin: 0 0 8px;
}
article .meta {
  color: var(--fg-dim);
  font-size: 13px;
  margin: 0 0 32px;
  font-family: "SF Mono", Menlo, monospace;
}
article h2 {
  font-size: 22px;
  letter-spacing: -0.01em;
  margin: 48px 0 14px;
  font-weight: 600;
  border-top: 1px solid var(--border);
  padding-top: 32px;
}
article h2:first-of-type { border-top: none; padding-top: 0; }
article h3 {
  font-size: 17px;
  margin: 32px 0 10px;
  font-weight: 600;
  color: var(--fg);
}

article p { margin: 0 0 16px; color: var(--fg); }
article p.muted { color: var(--fg-muted); }
article strong { color: var(--fg); }
article em { color: var(--fg); font-style: italic; }

article ul, article ol { padding-left: 24px; margin: 0 0 16px; }
article li { margin: 4px 0; color: var(--fg); }
article li > ul, article li > ol { margin: 4px 0 0; }

article blockquote {
  border-left: 3px solid var(--accent);
  background: var(--bg-card);
  padding: 14px 18px;
  margin: 20px 0;
  color: var(--fg-muted);
  border-radius: 0 6px 6px 0;
}
article blockquote p { margin: 0; }
article blockquote strong { color: var(--fg); }

article table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0 24px;
  font-size: 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
}
article th, article td {
  text-align: left;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
article th {
  background: var(--bg-card);
  color: var(--fg-muted);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 12px;
  letter-spacing: 0.04em;
}
article tr:last-child td { border-bottom: none; }
article td code { font-size: 12px; }

article .callout {
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  background: var(--bg-card);
  padding: 16px 20px;
  border-radius: 6px;
  margin: 24px 0;
  font-size: 14px;
  color: var(--fg-muted);
}
article .callout strong { color: var(--fg); }

article hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 32px 0;
}

footer {
  margin-top: 80px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  color: var(--fg-dim);
  font-size: 13px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
footer .links a { color: var(--fg-muted); margin-right: 20px; }
footer .links a:hover { color: var(--fg); }

::selection { background: var(--accent); color: var(--bg); }