:root {
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --text: #1f2328;
  --bg: #ffffff;
  --muted: #57606a;
  --faint: #6e7781;
  --border: #eaeef2;
  --img-border: #e6e8eb;
  --code-bg: #f3f4f6;
  --pre-bg: #f6f8fa;
  --kbd-border: #d0d7de;
  --quote-border: #d8dee4;
  --link: #6c4ee3;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font: 17px/1.7 -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

main {
  max-width: 46rem;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 5rem;
}

header {
  max-width: 46rem;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 1.25rem;
  padding: 1.5rem;
  border-bottom: 1px solid var(--border);
}

header .site-title {
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
}

header nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
}

header nav a {
  color: var(--muted);
  font-size: 0.95rem;
  text-decoration: none;
}

header nav a.active {
  color: var(--text);
  font-weight: 600;
}

h1, h2, h3 { font-weight: 650; }

h1 {
  font-size: 2.25rem;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 0 1rem;
}

h2 {
  font-size: 1.5rem;
  margin-top: 3rem;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.15rem;
  margin-top: 2rem;
}

a {
  color: var(--link);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

img {
  display: block;
  width: 100%;
  height: auto;
  margin: 1.75rem auto 0.5rem;
  border: 1px solid var(--img-border);
  border-radius: 10px;
  box-shadow: 0 1px 2px rgba(0,0,0,.05), 0 10px 30px rgba(0,0,0,.08);
}

img[alt*="narrow"] { max-width: 24rem; }

p img + em {
  display: block;
  text-align: center;
  color: var(--faint);
  font-size: .9rem;
  font-style: normal;
  margin-bottom: 1.5rem;
}

code, pre, kbd { font-family: var(--mono); }

code {
  font-size: 0.88em;
  background: var(--code-bg);
  padding: .15em .4em;
  border-radius: 5px;
}

pre {
  background: var(--pre-bg);
  padding: 1rem 1.25rem;
  border-radius: 8px;
  overflow-x: auto;
  line-height: 1.5;
}

pre code {
  background: none;
  padding: 0;
  font-size: 0.88em;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: .95rem;
}

th, td {
  padding: .55rem .75rem;
  border-bottom: 1px solid var(--border);
  text-align: left;
}

th { font-weight: 600; }

kbd {
  font-size: 0.82em;
  padding: .1em .45em;
  border: 1px solid var(--kbd-border);
  border-bottom-width: 2px;
  border-radius: 5px;
  background: var(--pre-bg);
}

blockquote {
  margin-left: 0;
  border-left: 3px solid var(--quote-border);
  padding-left: 1rem;
  color: var(--muted);
}

footer {
  text-align: center;
  color: var(--faint);
  font-size: .9rem;
  padding: 3rem 1.5rem;
}

footer a { color: var(--faint); }

@media (prefers-color-scheme: dark) {
  :root {
    --text: #e6edf3;
    --bg: #0d1117;
    --muted: #8b949e;
    --faint: #8b949e;
    --border: #30363d;
    --img-border: #30363d;
    --code-bg: #161b22;
    --pre-bg: #161b22;
    --kbd-border: #30363d;
    --quote-border: #30363d;
    --link: #a5a0ff;
  }
}