:root {
  --bg: #fbfaf7;
  --bg-soft: #f2efe8;
  --fg: #1d1c1a;
  --fg-muted: #5f5b53;
  --border: #e3ded3;
  --accent: #c2410c;
  --accent-soft: #fdecdf;
  --code-bg: #f4f1ea;
  --code-fg: #2b2a27;
  --hl-keyword: #9a3412;
  --hl-type: #0f766e;
  --hl-string: #4d7c0f;
  --hl-number: #7c3aed;
  --hl-comment: #8a857b;
  --hl-function: #1d4ed8;
  --hl-builtin: #b45309;
  --hl-field: #334155;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141412;
    --bg-soft: #1c1b19;
    --fg: #ebe7df;
    --fg-muted: #a39e94;
    --border: #2d2b27;
    --accent: #fb923c;
    --accent-soft: #2e1d10;
    --code-bg: #1b1a18;
    --code-fg: #e4dfd5;
    --hl-keyword: #fb923c;
    --hl-type: #5eead4;
    --hl-string: #a3e635;
    --hl-number: #c4b5fd;
    --hl-comment: #78736a;
    --hl-function: #93c5fd;
    --hl-builtin: #fbbf24;
    --hl-field: #cbd5e1;
  }
}

* { box-sizing: border-box; }

html { background: var(--bg); }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.65 var(--sans);
  -webkit-font-smoothing: antialiased;
}

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

.layout {
  display: grid;
  grid-template-columns: 250px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 32px 24px;
  border-right: 1px solid var(--border);
  background: var(--bg-soft);
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.brand { display: flex; flex-direction: column; color: var(--fg); }
.brand:hover { text-decoration: none; }
.logo {
  font: 700 30px/1 var(--mono);
  letter-spacing: -0.04em;
}
.logo::after { content: "_"; color: var(--accent); }
.tagline { margin-top: 6px; color: var(--fg-muted); font-size: 13px; }

.sidebar ul { list-style: none; margin: 0; padding: 0; }
.sidebar li a {
  display: block;
  padding: 6px 10px;
  margin: 0 -10px;
  border-radius: 6px;
  color: var(--fg);
  font-size: 15px;
}
.sidebar li a:hover { background: var(--border); text-decoration: none; }

.external { margin-top: auto; display: flex; flex-direction: column; gap: 4px; font-size: 14px; }
.external a { color: var(--fg-muted); }

main { padding: 56px 64px 96px; }
article { max-width: 760px; }

h1 { font-size: 40px; line-height: 1.15; letter-spacing: -0.02em; margin: 0 0 12px; }
.lede { font-size: 19px; color: var(--fg-muted); margin: 0 0 36px; }
h2 {
  font-size: 24px;
  letter-spacing: -0.01em;
  margin: 48px 0 12px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}
h3 { font-size: 18px; margin: 32px 0 8px; }
.content > h2:first-child { border-top: 0; padding-top: 0; margin-top: 0; }

p, ul, ol { margin: 0 0 16px; }
li { margin: 4px 0; }

code {
  font: 0.88em/1.5 var(--mono);
  background: var(--code-bg);
  padding: 0.12em 0.36em;
  border-radius: 4px;
}

pre {
  background: var(--code-bg);
  color: var(--code-fg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px 20px;
  overflow-x: auto;
  margin: 0 0 20px;
}
pre code { background: none; padding: 0; font-size: 13.5px; line-height: 1.6; }

table {
  display: block;
  max-width: 100%;
  overflow-x: auto;
  border-collapse: collapse;
  margin: 0 0 20px;
  font-size: 15px;
}
th, td { text-align: left; padding: 8px 12px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--fg-muted); font-weight: 600; font-size: 13px; text-transform: uppercase; letter-spacing: 0.04em; }

blockquote {
  margin: 0 0 20px;
  padding: 12px 18px;
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
  border-radius: 0 8px 8px 0;
}
blockquote p:last-child { margin-bottom: 0; }

.pager {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}
.pager a {
  display: flex;
  flex-direction: column;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--fg);
  min-width: 200px;
}
.pager a:hover { border-color: var(--accent); text-decoration: none; }
.pager small { color: var(--fg-muted); font-size: 12px; }
.pager .next { margin-left: auto; text-align: right; }

/* Zig highlighting classes emitted by Zine (tree-sitter captures). */
code.zig .keyword,
code.zig [class^="keyword"] { color: var(--hl-keyword); }
code.zig .type,
code.zig .type_builtin { color: var(--hl-type); }
code.zig .variable { color: var(--code-fg); }
code.zig .variable_member { color: var(--hl-field); }
code.zig .function,
code.zig .function_call { color: var(--hl-function); }
code.zig .function_builtin { color: var(--hl-builtin); }
code.zig .string { color: var(--hl-string); }
code.zig .number,
code.zig .boolean,
code.zig .constant_builtin { color: var(--hl-number); }
code.zig .comment { color: var(--hl-comment); font-style: italic; }
code.zig .operator,
code.zig .punctuation_bracket,
code.zig .punctuation_delimiter { color: var(--fg-muted); }

@media (max-width: 820px) {
  .layout { grid-template-columns: minmax(0, 1fr); }
  .sidebar {
    position: static;
    height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--border);
    padding: 20px 16px;
    gap: 16px;
  }
  .sidebar ul { display: flex; flex-wrap: wrap; gap: 4px 16px; }
  .sidebar li a { margin: 0; padding: 4px 0; }
  .external { flex-direction: row; gap: 16px; }
  main { padding: 32px 16px 64px; }
  h1 { font-size: 32px; }
  .pager a { min-width: 0; flex: 1; }
}