/* Veblen "ledger" theme — mirrors veblen.ai tokens (light only, no dark mode). */

:root {
  --ground: #f5f4f1;
  --surface: #ffffff;
  --surface-muted: #fafaf8;

  --ink: #16171b;
  --ink-soft: #565862;
  --ink-muted: #6a6c75;
  --ink-faint: #a1a1a1;

  --line: #eceae5;
  --line-strong: #dcd9d2;

  --accent: #2e4fe0;
  --accent-soft: #eaedfc;

  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;

  --font-sans: "DM Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --measure: 42rem;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

.wrap {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 0 1.5rem;
}

a {
  color: var(--accent);
  text-decoration: none;
  text-underline-offset: 2px;
}
a:hover { text-decoration: underline; }

/* ---------- Header ---------- */
.site-header {
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--line);
  margin-bottom: 3rem;
  background: var(--ground);
}
.site-header .wrap {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.site-title {
  color: var(--ink);
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: -0.005em;
}
.site-title:hover { text-decoration: none; color: var(--accent); }
.site-nav { display: flex; gap: 1.25rem; }
.site-nav a {
  color: var(--ink-soft);
  font-size: 0.9rem;
  font-weight: 500;
}
.site-nav a:hover { color: var(--accent); text-decoration: none; }

/* ---------- Hero / home ---------- */
.hero {
  padding: 1rem 0 2.5rem;
  border-bottom: 1px solid var(--line);
  margin-bottom: 2.5rem;
}
.hero h1 {
  font-size: clamp(1.9rem, 3.2vw, 2.4rem);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.15;
  margin: 0 0 0.6rem;
  max-width: 28ch;
}
.tagline {
  color: var(--ink-soft);
  margin: 0;
  font-size: 1.05rem;
  max-width: 50ch;
}

.post-list h2 {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin: 0 0 1rem;
}

/* ---------- Post list ---------- */
.posts {
  list-style: none;
  padding: 0;
  margin: 0 0 2rem;
}
.posts li {
  display: grid;
  grid-template-columns: 7.5rem 1fr;
  gap: 1.25rem;
  padding: 0.95rem 0;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
}
.posts li:first-child { border-top: 1px solid var(--line); }
.posts li.empty {
  display: block;
  color: var(--ink-muted);
  font-style: italic;
  border: 0;
}
.posts time {
  color: var(--ink-faint);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
}
.posts a {
  color: var(--ink);
  font-weight: 500;
  font-size: 1.025rem;
  letter-spacing: -0.005em;
}
.posts a:hover { color: var(--accent); text-decoration: none; }

@media (max-width: 540px) {
  .posts li { grid-template-columns: 1fr; gap: 0.1rem; }
}

/* ---------- Article ---------- */
.page, .post { max-width: var(--measure); }

.post-header {
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--line);
  margin-bottom: 2rem;
}
.post-header h1 {
  font-size: clamp(1.75rem, 3vw, 2.15rem);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.2;
  margin: 0 0 0.6rem;
}
.post-header .meta {
  color: var(--ink-muted);
  margin: 0;
  font-size: 0.85rem;
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

.post-body { font-size: 1.025rem; line-height: 1.7; color: var(--ink); }
.post-body p { margin: 1.1rem 0; }
.post-body h2 {
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin: 2.4rem 0 0.8rem;
}
.post-body h3 {
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 2rem 0 0.6rem;
}
.post-body ul, .post-body ol { padding-left: 1.25rem; }
.post-body li { margin: 0.4rem 0; }
.post-body strong { color: var(--ink); font-weight: 600; }
.post-body img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
}
.post-body blockquote {
  margin: 1.5rem 0;
  padding: 0.5rem 1.1rem;
  border-left: 2px solid var(--line-strong);
  color: var(--ink-soft);
  background: var(--surface-muted);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.post-body blockquote p { margin: 0.4rem 0; }
.post-body code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 0.08rem 0.35rem;
  border-radius: var(--radius-sm);
}
.post-body pre {
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 1rem 1.1rem;
  border-radius: var(--radius-md);
  overflow-x: auto;
  font-size: 0.88rem;
  line-height: 1.6;
}
.post-body pre code { background: transparent; border: 0; padding: 0; font-size: inherit; }
.post-body hr { border: 0; border-top: 1px solid var(--line); margin: 2.5rem 0; }

.page h1 {
  font-size: clamp(1.75rem, 3vw, 2.15rem);
  font-weight: 600;
  letter-spacing: -0.025em;
  margin: 0 0 1.5rem;
}

.post-footer {
  margin-top: 3rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
  font-size: 0.9rem;
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}
.post-footer a { color: var(--ink-soft); }
.post-footer a:hover { color: var(--accent); }

/* ---------- Footer ---------- */
.site-footer {
  margin-top: 5rem;
  padding: 2rem 0 2.5rem;
  border-top: 1px solid var(--line);
  color: var(--ink-faint);
  font-size: 0.82rem;
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}
.site-footer a { color: var(--ink-muted); }
.site-footer a:hover { color: var(--accent); }
.site-footer p { margin: 0; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 2px;
}