/* blygger.org — site stylesheet
   Signature: a monospace "log rail" running down the left margin, turning each
   page's headings into a scannable index — "your feed is the changelog,"
   applied to the page itself. */

:root {
  --paper: #f6f4ee;
  --ink: #1b1d22;
  --ink-soft: #565b66;
  --rule: #dedacd;
  --rss: #d95a1f;
  --add: #2e7d46;
  --mono: ui-monospace, "IBM Plex Mono", "JetBrains Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --serif: ui-serif, Charter, "Iowan Old Style", "Palatino Linotype", Georgia, "Times New Roman", serif;
  --measure: 40rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #15161b;
    --ink: #ece8de;
    --ink-soft: #9a9d9c;
    --rule: #2b2d33;
    --rss: #ff8142;
    --add: #4cae6d;
  }
}
:root[data-theme="dark"] {
  --paper: #15161b;
  --ink: #ece8de;
  --ink-soft: #9a9d9c;
  --rule: #2b2d33;
  --rss: #ff8142;
  --add: #4cae6d;
}
:root[data-theme="light"] {
  --paper: #f6f4ee;
  --ink: #1b1d22;
  --ink-soft: #565b66;
  --rule: #dedacd;
  --rss: #d95a1f;
  --add: #2e7d46;
}

* { box-sizing: border-box; }

html { color-scheme: light dark; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1.08rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--rss); text-decoration-thickness: 1px; text-underline-offset: 0.15em; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--rss); outline-offset: 2px; }

/* ---- header ---- */

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 64rem;
  margin: 0 auto;
  padding: 1.5rem 1.5rem 1rem;
  font-family: var(--mono);
}

.wordmark {
  color: var(--ink);
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.02em;
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
}
.wordmark:hover { color: var(--ink); }
.wordmark .dot {
  width: 0.55em;
  height: 0.55em;
  border-radius: 50%;
  background: var(--rss);
  display: inline-block;
}

.site-header nav { display: flex; gap: 1.5rem; font-size: 0.9rem; }
.site-header nav a { color: var(--ink-soft); text-decoration: none; }
.site-header nav a:hover { color: var(--rss); }

/* ---- layout ---- */

.layout {
  max-width: 64rem;
  margin: 0 auto;
  padding: 0 1.5rem 4rem;
  display: grid;
  grid-template-columns: 13rem minmax(0, var(--measure));
  gap: 2.5rem;
  align-items: start;
}

@media (max-width: 860px) {
  .layout { grid-template-columns: minmax(0, 1fr); }
  .rail { display: none; }
}

.rail {
  position: sticky;
  top: 2rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  border-left: 1px solid var(--rule);
  padding-left: 1rem;
}

.rail-label {
  color: var(--ink-soft);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.68rem;
  margin: 0 0 0.75rem;
}

.rail ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.rail li { display: flex; gap: 0.6em; align-items: baseline; }
.rail .idx { color: var(--rss); flex-shrink: 0; }
.rail a { color: var(--ink-soft); text-decoration: none; line-height: 1.35; }
.rail a:hover { color: var(--rss); }

/* ---- content / prose ---- */

.content { min-width: 0; }

.prompt {
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--ink-soft);
  margin: 0 0 0.75rem;
}
.prompt::after {
  content: "";
  display: inline-block;
  width: 0.55em;
  height: 1.05em;
  background: var(--rss);
  margin-left: 0.35em;
  vertical-align: text-bottom;
  animation: caret 1.1s steps(1) infinite;
}
@media (prefers-reduced-motion: reduce) {
  .prompt::after { animation: none; }
}
@keyframes caret {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0; }
}

.content h1 {
  font-family: var(--mono);
  font-size: clamp(1.7rem, 4vw, 2.5rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.15;
  margin: 0 0 1.25rem;
}

.content > p:first-of-type,
.content .lede {
  font-family: var(--serif);
  font-size: 1.28rem;
  line-height: 1.5;
  color: var(--ink);
}

.content h2 {
  font-family: var(--mono);
  font-size: 1.15rem;
  font-weight: 600;
  margin: 2.75rem 0 1rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
  scroll-margin-top: 1.5rem;
}
.content h1 + h2, .content .lede + h2 { border-top: none; padding-top: 0; }

.content h3 {
  font-family: var(--mono);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink-soft);
  margin: 1.75rem 0 0.75rem;
  scroll-margin-top: 1.5rem;
}

.content p, .content li { margin: 0 0 1rem; }
.content ul, .content ol { padding-left: 1.3rem; }

.content strong { font-weight: 700; }

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

.content code {
  font-family: var(--mono);
  font-size: 0.88em;
  background: color-mix(in srgb, var(--ink) 6%, transparent);
  padding: 0.1em 0.35em;
  border-radius: 3px;
}

.content pre {
  background: color-mix(in srgb, var(--ink) 5%, transparent);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 1rem 1.15rem;
  overflow-x: auto;
  font-size: 0.85rem;
  line-height: 1.55;
}
.content pre code { background: none; padding: 0; }

.content blockquote {
  margin: 0 0 1rem;
  padding-left: 1rem;
  border-left: 2px solid var(--add);
  color: var(--ink-soft);
}

.content table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 1.5rem;
  font-size: 0.92rem;
}
.content th, .content td {
  text-align: left;
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
}
.content th {
  font-family: var(--mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  border-bottom: 1px solid var(--ink-soft);
}
.content table code { white-space: nowrap; }

.status-line {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--rss);
  border: 1px solid var(--rss);
  border-radius: 999px;
  padding: 0.25em 0.75em;
  margin: 0 0 1.5rem;
}

/* ---- footer ---- */

.site-footer {
  max-width: 64rem;
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--ink-soft);
  border-top: 1px solid var(--rule);
}
.site-footer a { color: var(--ink-soft); }
.site-footer a:hover { color: var(--rss); }