:root {
  --fg: #1a1a1a;
  --muted: #6b7280;
  --accent: #2563eb;
  --bg: #ffffff;
  --border: #e5e7eb;
  --code-bg: #f6f8fa;
  --max: 44rem;
  /* GitHub gist embeds style code with font-family: var(--fontStack-monospace),
     a Primer variable they define on github.com but not in the embed stylesheet.
     Define it here so embedded gists render monospace instead of inheriting body sans-serif. */
  --fontStack-monospace: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 18px;
  line-height: 1.65;
  color: var(--fg);
  background: var(--bg);
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Header */
.site-header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
  padding-bottom: 1.25rem;
  margin-bottom: 2.5rem;
  border-bottom: 1px solid var(--border);
}
.site-title { font-weight: 700; font-size: 1.15rem; color: var(--fg); }
.site-nav a { color: var(--muted); margin-left: 1.1rem; font-size: 0.95rem; }
.site-nav a:first-child { margin-left: 0; }

/* Home intro */
.intro { margin-bottom: 2.5rem; }
.intro h1 { font-size: 2rem; margin: 0 0 0.25rem; }
.intro p { color: var(--muted); margin: 0; }

/* Post list */
.post-list { list-style: none; padding: 0; margin: 0; }
.post-list-item { padding: 1.1rem 0; border-bottom: 1px solid var(--border); }
.post-list-link {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  color: var(--fg);
}
.post-list-link:hover { text-decoration: none; }
.post-list-link:hover .post-list-title { color: var(--accent); }
.post-list-title { font-weight: 600; }
.post-list-date { color: var(--muted); font-size: 0.85rem; white-space: nowrap; }
.post-list-desc { color: var(--muted); font-size: 0.95rem; margin: 0.35rem 0 0; }

/* Post */
.post-header { margin-bottom: 1.5rem; }
.post-title { font-size: 2rem; line-height: 1.2; margin: 0 0 0.5rem; }
.post-meta { color: var(--muted); font-size: 0.9rem; margin: 0; }
.tag { display: inline-block; font-size: 0.8rem; color: var(--muted); }
.post-feature { width: 100%; height: auto; border-radius: 8px; margin-bottom: 2rem; }

.post-content { font-size: 1.05rem; }
.post-content h2 { margin-top: 2.5rem; font-size: 1.5rem; }
.post-content h3 { margin-top: 2rem; font-size: 1.25rem; }
.post-content img { max-width: 100%; height: auto; border-radius: 6px; }
.post-content figure { margin: 1.5rem 0; }
.post-content figure img { display: block; }
.post-content figcaption { color: var(--muted); font-size: 0.85rem; text-align: center; margin-top: 0.5rem; }
.post-content blockquote {
  margin: 1.5rem 0;
  padding: 0.25rem 1.25rem;
  border-left: 3px solid var(--border);
  color: var(--muted);
}
.post-content hr { border: 0; border-top: 1px solid var(--border); margin: 2.5rem 0; }

/* Code */
code, pre, kbd {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.9em;
}
code {
  background: var(--code-bg);
  padding: 0.15em 0.4em;
  border-radius: 4px;
}
pre {
  background: var(--code-bg);
  padding: 1rem 1.1rem;
  border-radius: 8px;
  overflow-x: auto;
  line-height: 1.5;
  border: 1px solid var(--border);
}
pre code { background: none; padding: 0; }
.highlight { margin: 1.5rem 0; }

.post-footer { margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid var(--border); }

/* Footer */
.site-footer {
  margin-top: 4rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.85rem;
}
.site-footer a { color: var(--muted); }

/* Rouge syntax highlighting (github-ish light) */
.highlight .c, .highlight .cm, .highlight .c1, .highlight .cs { color: #6a737d; font-style: italic; }
.highlight .k, .highlight .kd, .highlight .kn, .highlight .kp, .highlight .kr, .highlight .kt { color: #d73a49; }
.highlight .o, .highlight .ow { color: #d73a49; }
.highlight .s, .highlight .s1, .highlight .s2, .highlight .se, .highlight .sb, .highlight .sd, .highlight .sx, .highlight .sr { color: #032f62; }
.highlight .n, .highlight .na, .highlight .nn, .highlight .nx { color: #24292e; }
.highlight .nb, .highlight .bp { color: #005cc5; }
.highlight .nf, .highlight .fm { color: #6f42c1; }
.highlight .nc, .highlight .nl { color: #6f42c1; }
.highlight .nt { color: #22863a; }
.highlight .nv, .highlight .vi, .highlight .vg, .highlight .vc { color: #e36209; }
.highlight .m, .highlight .mi, .highlight .mf, .highlight .mh, .highlight .mo, .highlight .il { color: #005cc5; }
.highlight .gd { color: #b31d28; background: #ffeef0; }
.highlight .gi { color: #22863a; background: #f0fff4; }
.highlight .gh { color: #005cc5; font-weight: bold; }