/* ---------------------------------------------------------
   Marginalia — design tokens
   Paper & ink palette, editorial type scale, marginal-note
   gutter as the signature structural element.
--------------------------------------------------------- */

:root {
 --paper: #EDE8DD;
  --paper-raised: #F5F1E7;
  --ink: #1F2A24;
  --ink-soft: #4B5750;
  --rule: #C9C0AC;
  --brick: #7A3B2E;
  --moss: #3F5C4C;

  --display: "Fraunces", "Iowan Old Style", Georgia, serif;
  --body: "Source Serif 4", Georgia, serif;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, monospace;

  --content-width: 42rem;
  --gutter-width: 11rem;
  --measure: 68ch;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: 1.125rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--brick); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--moss); }

::selection { background: var(--brick); color: var(--paper-raised); }

/* ---------- Skip link / accessibility ---------- */
.skip-link {
  position: absolute;
  left: -999px;
  top: auto;
}
.skip-link:focus {
  left: 1rem;
  top: 1rem;
  z-index: 100;
  background: var(--ink);
  color: var(--paper);
  padding: 0.5rem 1rem;
  border-radius: 2px;
}

:focus-visible {
  outline: 2px solid var(--brick);
  outline-offset: 3px;
}

/* ---------- Layout shell ---------- */
.page {
  max-width: 74rem;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.site-header {
  border-bottom: 1px solid var(--rule);
  padding: 2.75rem 0 1.75rem;
  margin-bottom: 3rem;
}

.site-header .page {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
}

.site-title {
  font-family: var(--display);
  font-weight: 600;
  font-size: 1.9rem;
  letter-spacing: -0.01em;
  color: var(--ink);
  text-decoration: none;
}

.site-tagline {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--ink-soft);
  letter-spacing: 0.03em;
}

.site-nav a {
  font-family: var(--mono);
  font-size: 0.82rem;
  text-transform: lowercase;
  letter-spacing: 0.03em;
  margin-left: 1.25rem;
  text-decoration: none;
  color: var(--ink-soft);
  border-bottom: 1px solid transparent;
}

.site-nav a:hover {
  color: var(--brick);
  border-bottom-color: var(--brick);
}

/* ---------- Home: post index with marginalia gutter ---------- */
.entries {
  display: flex;
  flex-direction: column;
}

.entry {
  display: grid;
  grid-template-columns: var(--gutter-width) 1fr;
  gap: 0 2rem;
  padding: 1.75rem 0;
  border-top: 1px solid var(--rule);
}

.entry:last-child { border-bottom: 1px solid var(--rule); }

.entry-margin {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--ink-soft);
  line-height: 1.8;
  padding-top: 0.35rem;
}

.entry-margin .date { display: block; color: var(--brick); }
.entry-margin .meta { display: block; }

.entry-title {
  font-family: var(--display);
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0 0 0.4rem;
  line-height: 1.3;
}

.entry-title a { color: var(--ink); text-decoration: none; }
.entry-title a:hover { color: var(--brick); }

.entry-excerpt {
  color: var(--ink-soft);
  font-size: 1rem;
  max-width: var(--measure);
}

.intro {
  max-width: 38rem;
  margin-bottom: 3.5rem;
}

.intro p {
  font-size: 1.2rem;
  color: var(--ink-soft);
}

/* ---------- Single post ---------- */
.post {
  display: grid;
  grid-template-columns: var(--gutter-width) 1fr;
  gap: 0 2rem;
  align-items: start;
}

.post-margin {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--ink-soft);
  line-height: 2;
  position: sticky;
  top: 2rem;
}

.post-margin .date { display: block; color: var(--brick); margin-bottom: 0.5rem; }

.post-body {
  max-width: var(--measure);
}

.post-title {
  font-family: var(--display);
  font-size: 2.5rem;
  line-height: 1.15;
  font-weight: 600;
  margin: 0 0 1.75rem;
  letter-spacing: -0.01em;
}

.post-body p { margin: 0 0 1.35rem; }

.post-body h2 {
  font-family: var(--display);
  font-size: 1.5rem;
  margin: 2.5rem 0 1rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--rule);
}

.post-body blockquote {
  margin: 1.75rem 0;
  padding-left: 1.25rem;
  border-left: 2px solid var(--brick);
  color: var(--ink-soft);
  font-style: italic;
}

.post-body a { text-decoration-line: underline; }

.post-body img {
  max-width: 100%;
  height: auto;
  margin: 1.5rem 0;
}

.post-body code {
  font-family: var(--mono);
  font-size: 0.88em;
  background: var(--paper-raised);
  padding: 0.1em 0.35em;
  border-radius: 3px;
}

.post-body pre {
  background: var(--paper-raised);
  padding: 1rem 1.25rem;
  overflow-x: auto;
  border: 1px solid var(--rule);
  border-radius: 3px;
}
.post-body pre code { background: none; padding: 0; }

.post-footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
}

.back-link {
  font-family: var(--mono);
  font-size: 0.85rem;
  text-decoration: none;
}
.back-link:before { content: "← "; }

/* ---------- Page (about, etc) ---------- */
.page-content {
  max-width: var(--measure);
}
.page-content h1 {
  font-family: var(--display);
  font-size: 2.25rem;
  margin-bottom: 1.5rem;
}

/* ---------- Footer ---------- */
.site-footer {
  margin-top: 5rem;
  padding: 2rem 0 3rem;
  border-top: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--ink-soft);
}

/* ---------- Responsive ---------- */
@media (max-width: 700px) {
  .entry, .post {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }
  .entry-margin, .post-margin {
    position: static;
    display: flex;
    gap: 1rem;
    line-height: 1.5;
  }
  .post-title { font-size: 1.9rem; }
  .site-header .page { flex-direction: column; align-items: flex-start; }
  .site-nav { margin-top: 0.25rem; }
  .site-nav a { margin-left: 0; margin-right: 1.1rem; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; }
}

/* ---------- Profile block (about page) ---------- */
.profile {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  margin-bottom: 3rem;
}

.profile-avatar {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--rule);
  margin-bottom: 1.25rem;
}

.profile-name {
  font-family: var(--display);
  font-size: 1.9rem;
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 1rem;
}

.profile-links {
  display: flex;
  gap: 1.1rem;
}

.profile-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  border: 1px solid var(--rule);
  color: var(--ink-soft);
  text-decoration: none;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.profile-links a:hover {
  color: var(--brick);
  border-color: var(--brick);
}

.profile-links svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}