/* Minimal, typography-first theme. System fonts, CSS variables for theming. */

:root {
  --bg: #ffffff;
  --fg: #1a1a1a;
  --muted: #6b6b6b;
  --accent: #1a56db;
  --border: #e8e8e8;
  --code-bg: #f5f5f5;
  --blockquote-border: #d5d5d5;
}

[data-theme="dark"] {
  --bg: #121212;
  --fg: #e6e6e6;
  --muted: #a0a0a0;
  --accent: #7aa7ff;
  --border: #2a2a2a;
  --code-bg: #1e1e1e;
  --blockquote-border: #3a3a3a;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.7;
  transition: background 0.2s ease, color 0.2s ease;
}

.wrap {
  max-width: 42rem;
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Header */

.site-header {
  border-bottom: 1px solid var(--border);
  margin-bottom: 3rem;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1.25rem;
  padding-bottom: 1.25rem;
}

.brand {
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--fg);
  text-decoration: none;
}

nav { display: flex; align-items: center; gap: 1.25rem; }

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

nav a:hover { color: var(--fg); }

#theme-toggle {
  background: none;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--fg);
  cursor: pointer;
  font-size: 0.9rem;
  line-height: 1;
  padding: 0.4rem 0.55rem;
}

#theme-toggle:hover { border-color: var(--muted); }

/* Footer */

.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 4rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  padding-top: 1.5rem;
  padding-bottom: 2.5rem;
  color: var(--muted);
  font-size: 0.9rem;
}

/* Home */

.hero { margin-bottom: 3rem; }

.kicker {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.8rem;
  color: var(--muted);
  margin: 0 0 0.75rem;
}

.hero h1 {
  font-size: 2.25rem;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin: 0 0 1rem;
  font-weight: 700;
}

.about-blurb { color: var(--muted); max-width: 36rem; }

.posts h2 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
  font-weight: 600;
  margin: 0 0 1.5rem;
}

.post-item { margin-bottom: 2rem; }

.post-item h3 { margin: 0 0 0.25rem; font-size: 1.3rem; }

.post-item h3 a { color: var(--fg); text-decoration: none; }
.post-item h3 a:hover { color: var(--accent); }

.meta { color: var(--muted); font-size: 0.9rem; margin: 0 0 0.35rem; }

.excerpt { margin: 0; color: var(--muted); }

.more { margin-top: 2rem; }

/* Post */

.post header h1 {
  font-size: 2rem;
  line-height: 1.3;
  letter-spacing: -0.015em;
  margin: 0 0 0.5rem;
}

.post header { margin-bottom: 2rem; }

.tags { margin-left: 0.75rem; }
.tag {
  font-size: 0.8rem;
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.1rem 0.6rem;
  margin-right: 0.35rem;
  white-space: nowrap;
}

.back { margin-top: 3rem; }

/* Archive */

.lede { color: var(--muted); margin-top: -0.75rem; }

.archive-year {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
  margin: 2.5rem 0 1rem;
}

.archive-item {
  display: flex;
  gap: 1.25rem;
  align-items: baseline;
  margin-bottom: 0.75rem;
}

.archive-item time {
  flex: 0 0 6.5rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.archive-item a { color: var(--fg); text-decoration: none; }
.archive-item a:hover { color: var(--accent); }

/* Prose */

.prose h2 { font-size: 1.4rem; margin: 2.25rem 0 0.75rem; letter-spacing: -0.01em; }
.prose h3 { font-size: 1.15rem; margin: 1.75rem 0 0.5rem; }

.prose p { margin: 0 0 1.25rem; }

a { color: var(--accent); }

.prose a { text-decoration: underline; text-underline-offset: 0.15em; }

.prose ul, .prose ol { margin: 0 0 1.25rem; padding-left: 1.5rem; }
.prose li { margin-bottom: 0.35rem; }

.prose blockquote {
  margin: 0 0 1.25rem;
  padding-left: 1.25rem;
  border-left: 3px solid var(--blockquote-border);
  color: var(--muted);
  font-style: italic;
}

.prose blockquote p { margin-bottom: 0.5rem; }

.prose code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.88em;
  background: var(--code-bg);
  border-radius: 0.3rem;
  padding: 0.15em 0.4em;
}

.prose pre {
  background: var(--code-bg);
  border-radius: 0.5rem;
  padding: 1rem 1.25rem;
  overflow-x: auto;
  margin: 0 0 1.25rem;
}

.prose pre code { background: none; padding: 0; font-size: 0.9rem; }

.prose hr { border: none; border-top: 1px solid var(--border); margin: 2.5rem 0; }

.prose img { max-width: 100%; height: auto; border-radius: 0.5rem; }

/* Small screens */

@media (max-width: 600px) {
  .hero h1 { font-size: 1.75rem; }
  .post header h1 { font-size: 1.6rem; }
  .archive-item { gap: 0.75rem; }
  .archive-item time { flex-basis: 5.5rem; }
}