/* ===========================================================================
   One stylesheet. No framework, no build step, no JavaScript anywhere.
   Read it top to bottom in a few minutes; change anything you don't like.
   =========================================================================== */

:root {
  --bg:      #fbfcfc;
  --ink:     #1a1d21;
  --muted:   #5c6470;
  --rule:    #dfe4e6;
  --accent:  #33566f;   /* annotation blue — used only for links and marks */
  --mark-bg: #eceff1;

  --serif: "Iowan Old Style", "Charter", "Palatino Linotype", Palatino, Georgia, serif;
  --sans:  system-ui, -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  --mono:  ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --measure: 66ch;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg:      #14171a;
    --ink:     #dde1e4;
    --muted:   #8b949e;
    --rule:    #262b30;
    --accent:  #86aac6;
    --mark-bg: #20262b;
  }
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1.0625rem;
  line-height: 1.65;
  padding: 0 1.25rem 4rem;
}

@media (min-width: 40rem) { body { font-size: 1.125rem; } }

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

/* --- Masthead ------------------------------------------------------------ */

.masthead {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.75rem 1.25rem;
  max-width: 52rem;
  margin: 0 auto;
  padding: 2.25rem 0 1.5rem;
  border-bottom: 1px solid var(--rule);
}

.masthead__title {
  font-family: var(--sans);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--ink);
  text-decoration: none;
}

.masthead__nav { margin-left: auto; display: flex; gap: 1rem; }
.masthead__nav a {
  font-family: var(--sans);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  text-transform: lowercase;
  color: var(--muted);
  text-decoration: none;
}
.masthead__nav a:hover { color: var(--accent); }

/* --- Entry grid ----------------------------------------------------------
   One column on phones. On wide screens the register mark hangs in a narrow
   left margin, the way a marginal annotation would. -------------------- */

.entry {
  display: grid;
  grid-template-columns: minmax(0, var(--measure));
  justify-content: center;
  gap: 0 2rem;
  padding: 2.5rem 0 0;
}

@media (min-width: 58rem) {
  .entry { grid-template-columns: 6rem minmax(0, var(--measure)); }
  .entry__mark { text-align: right; padding-top: 0.55rem; }
}

.entry__body { min-width: 0; }

.entry__title {
  font-size: 1.9rem;
  line-height: 1.2;
  font-weight: 600;
  margin: 0 0 0.6rem;
  letter-spacing: -0.01em;
}

.entry__meta {
  font-family: var(--sans);
  font-size: 0.8rem;
  color: var(--muted);
  margin: 0 0 1.75rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.entry__tags { display: flex; flex-wrap: wrap; gap: 0.6rem; }
.entry__tags a { color: var(--muted); text-decoration: none; }
.entry__tags a::before { content: "#"; opacity: 0.55; }
.entry__tags a:hover { color: var(--accent); }

/* --- Register mark: note vs essay ---------------------------------------- */

.mark {
  display: inline-block;
  font-family: var(--sans);
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--muted);
}
.mark--essay {
  color: var(--accent);
  background: var(--mark-bg);
  padding: 0.15rem 0.45rem;
  border-radius: 2px;
}

/* --- Epistemic status ---------------------------------------------------- */

.status {
  border-left: 2px solid var(--rule);
  padding: 0.1rem 0 0.1rem 0.9rem;
  margin: 0 0 2rem;
  font-family: var(--sans);
  font-size: 0.85rem;
  line-height: 1.5;
  color: var(--muted);
}
.status__label {
  text-transform: uppercase;
  letter-spacing: 0.09em;
  font-size: 0.7rem;
  font-weight: 600;
}
.status__label::after { content: " — "; letter-spacing: 0; }
.status__note { font-style: italic; }

/* --- Prose --------------------------------------------------------------- */

.prose > *:first-child { margin-top: 0; }
.prose p { margin: 0 0 1.35rem; }
.prose h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 2.5rem 0 0.75rem;
  line-height: 1.3;
}
.prose h3 {
  font-family: var(--sans);
  font-size: 0.95rem;
  font-weight: 600;
  margin: 2rem 0 0.5rem;
}
.prose ul, .prose ol { margin: 0 0 1.35rem; padding-left: 1.3rem; }
.prose li { margin-bottom: 0.4rem; }
.prose blockquote {
  margin: 0 0 1.35rem;
  padding-left: 1.1rem;
  border-left: 2px solid var(--rule);
  color: var(--muted);
}
.prose hr { border: 0; border-top: 1px solid var(--rule); margin: 2.5rem 0; }
.prose img { max-width: 100%; height: auto; }
.prose code {
  font-family: var(--mono);
  font-size: 0.85em;
  background: var(--mark-bg);
  padding: 0.1em 0.35em;
  border-radius: 2px;
}
.prose pre {
  font-family: var(--mono);
  font-size: 0.82rem;
  line-height: 1.5;
  background: var(--mark-bg);
  padding: 0.9rem 1rem;
  border-radius: 3px;
  overflow-x: auto;
  margin: 0 0 1.35rem;
}
.prose pre code { background: none; padding: 0; font-size: inherit; }
.prose table { border-collapse: collapse; width: 100%; font-size: 0.92em; margin: 0 0 1.35rem; }
.prose th, .prose td { text-align: left; padding: 0.45rem 0.6rem; border-bottom: 1px solid var(--rule); }
.prose--intro { color: var(--muted); margin-bottom: 2.5rem; }

/* --- Corrections --------------------------------------------------------- */

.corrections {
  margin-top: 3rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--rule);
}
.corrections__head {
  font-family: var(--sans);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 0.75rem;
}
.corrections__list { list-style: none; margin: 0; padding: 0; font-size: 0.92rem; }
.corrections__list li { display: flex; gap: 0.9rem; margin-bottom: 0.6rem; }
.corrections__list time { flex: 0 0 5.5rem; color: var(--muted); font-family: var(--sans); font-size: 0.78rem; padding-top: 0.2rem; }
.corrections__list p { margin: 0; }

/* --- Feed ---------------------------------------------------------------- */

.feed { list-style: none; margin: 0; padding: 0; }
.feed__item { padding: 1.1rem 0; border-bottom: 1px solid var(--rule); }
.feed__head { display: flex; align-items: baseline; gap: 0.7rem; margin-bottom: 0.2rem; }
.feed__head time { font-family: var(--sans); font-size: 0.75rem; color: var(--muted); }
.feed__title { display: block; font-size: 1.15rem; line-height: 1.3; text-decoration: none; color: var(--ink); }
.feed__title:hover { color: var(--accent); text-decoration: underline; }
.feed__status {
  font-family: var(--sans);
  font-size: 0.72rem;
  color: var(--muted);
  font-style: italic;
}

/* --- Tag index ----------------------------------------------------------- */

.taglist { list-style: none; margin: 0; padding: 0; }
.taglist li { padding: 0.45rem 0; border-bottom: 1px solid var(--rule); }
.taglist span { color: var(--muted); font-family: var(--sans); font-size: 0.78rem; }

/* --- Footer -------------------------------------------------------------- */

.footer {
  max-width: 52rem;
  margin: 4rem auto 0;
  padding-top: 1.25rem;
  border-top: 1px solid var(--rule);
  font-family: var(--sans);
  font-size: 0.78rem;
  color: var(--muted);
}

/* --- Pagination (Hugo's internal template) ------------------------------- */

.pagination { list-style: none; display: flex; gap: 0.75rem; padding: 1.5rem 0 0; font-family: var(--sans); font-size: 0.85rem; }
.pagination .disabled { display: none; }