:root {
  color-scheme: light dark;
  --bg: #fafaf9;
  --fg: #111113;
  --muted: #5f5f66;
  --faint: #8a8a92;
  --rule: #e4e4e7;
  --accent: #1f4fd8;
  --accent-fg: #ffffff;
  --code-bg: #f0f0f2;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --measure: 40rem;
  --gutter: 16px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e0e10;
    --fg: #ececef;
    --muted: #a1a1aa;
    --faint: #71717a;
    --rule: #26262b;
    --accent: #7aa2ff;
    --accent-fg: #0e0e10;
    --code-bg: #1a1a1e;
  }
}

*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--fg);
  font: 400 1rem/1.65 var(--sans);
  padding-left: env(safe-area-inset-left);
  padding-right: env(safe-area-inset-right);
}

a { color: var(--accent); text-underline-offset: 0.18em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.wrap {
  width: 100%;
  max-width: calc(var(--measure) + 2 * var(--gutter));
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* Header */
.site-header {
  border-bottom: 1px solid var(--rule);
  padding-top: env(safe-area-inset-top);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 56px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--fg);
  text-decoration: none;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.brand::before {
  content: "";
  width: 10px;
  height: 10px;
  background: var(--accent);
}
.site-nav { display: flex; gap: 1.1rem; font-size: 0.9rem; }
.site-nav a { color: var(--muted); text-decoration: none; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--fg); }

/* Main */
main { flex: 1; padding: 3rem 0 3.5rem; }

h1, h2, h3 { line-height: 1.2; letter-spacing: -0.02em; margin: 0; }
h1 { font-size: clamp(1.75rem, 5vw, 2.35rem); font-weight: 650; }
h2 { font-size: 1.3rem; font-weight: 600; margin: 2.25rem 0 0.75rem; }
p, ul, ol { margin: 0 0 1.1rem; }
ul, ol { padding-left: 1.25rem; }
li { margin-bottom: 0.35rem; }

.eyebrow {
  font: 500 0.75rem/1 var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--faint);
  margin: 0 0 1rem;
}
.lede { font-size: 1.125rem; color: var(--muted); margin: 1rem 0 0; max-width: 34rem; }

.meta { font: 400 0.8rem/1.4 var(--mono); color: var(--faint); }

code {
  font: 0.9em var(--mono);
  background: var(--code-bg);
  padding: 0.1em 0.35em;
}

/* Post list */
.post-list { list-style: none; padding: 0; margin: 2.75rem 0 0; border-top: 1px solid var(--rule); }
.post-list li { margin: 0; border-bottom: 1px solid var(--rule); }
.post-list a {
  display: grid;
  gap: 0.35rem;
  padding: 1.25rem 0;
  color: inherit;
  text-decoration: none;
}
.post-list .title { font-size: 1.1rem; font-weight: 600; letter-spacing: -0.01em; }
.post-list a:hover .title { color: var(--accent); }
.post-list .summary { color: var(--muted); font-size: 0.95rem; }

@media (min-width: 640px) {
  .post-list a { grid-template-columns: 7.5rem 1fr; column-gap: 1.5rem; }
  .post-list .meta { padding-top: 0.3rem; }
  .post-list .summary { grid-column: 2; }
}

/* Article */
.article-head { margin-bottom: 2.25rem; }
.article-head .meta { margin-top: 0.9rem; }
.article > p:first-of-type { font-size: 1.075rem; }
.back { display: inline-block; margin-top: 2.5rem; font: 0.85rem var(--mono); text-decoration: none; }

/* Prose pages */
.prose h2:first-child { margin-top: 0; }
.callout {
  border-left: 3px solid var(--accent);
  padding: 0.25rem 0 0.25rem 1rem;
  margin: 1.5rem 0;
  color: var(--muted);
}
.email { font-family: var(--mono); font-size: 0.95em; white-space: nowrap; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--rule);
  font-size: 0.8rem;
  color: var(--muted);
  padding-bottom: env(safe-area-inset-bottom);
}
.site-footer .wrap { padding-top: 1.25rem; padding-bottom: 1.5rem; display: grid; gap: 0.6rem; }
.site-footer p { margin: 0; }
.site-footer a { color: var(--muted); }
.site-footer a:hover { color: var(--fg); }
.footer-links { display: flex; flex-wrap: wrap; gap: 0.4rem 1.1rem; font-family: var(--mono); font-size: 0.75rem; }