/* codelif.in — a man page.
   No framework, no webfonts, no build step. The roff conventions are the
   design system: flush-left section heads, indented bodies, ~78 columns. */

:root {
  color-scheme: light dark;
  --bg:     #f6f4ee;
  --fg:     #1f1c18;
  --bold:   #0c0b09;
  --dim:    #6e695e;
  --accent: #9a3b1b;
  --rule:   #ddd8c9;
  --tint:   #ebe6d8;
  --ind: 7ch;
}

/* Dark is declared twice on purpose: once for the system preference, once
   for the explicit override. The override must win in both directions. */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg:     #131210;
    --fg:     #c9c5bb;
    --bold:   #f0ece2;
    --dim:    #807b71;
    --accent: #d0895a;
    --rule:   #2c2a25;
    --tint:   #1c1a17;
  }
}
:root[data-theme="dark"] {
  --bg:     #131210;
  --fg:     #c9c5bb;
  --bold:   #f0ece2;
  --dim:    #807b71;
  --accent: #d0895a;
  --rule:   #2c2a25;
  --tint:   #1c1a17;
}

* { box-sizing: border-box; }

body {
  margin: 0 auto;
  max-width: 78ch;
  padding: 1.75rem 1.5rem 3rem;
  background: var(--bg);
  color: var(--fg);
  font-family: ui-monospace, SFMono-Regular, "SF Mono", "JetBrains Mono",
               "Fira Mono", Menlo, Consolas, "DejaVu Sans Mono", monospace;
  font-size: 16px;
  line-height: 1.55;
  -webkit-text-size-adjust: 100%;
}

/* ---- site chrome ------------------------------------------------------ */

.nav {
  color: var(--dim);
  font-size: 0.875rem;
  margin-bottom: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0 0.75ch;
}
.nav .sep { color: var(--rule); }

.toggle {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}
.toggle:hover { color: var(--accent); }
.no-js .toggle { cursor: default; }
.no-js .toggle:hover { color: inherit; }

/* ---- the three-part man header and footer ----------------------------- */

.man-line {
  display: flex;
  gap: 1ch;
  font-size: 0.875rem;
  color: var(--dim);
  text-transform: none;
}
.man-line .slot { flex: 1 1 0; min-width: 0; }
.slot-l { text-align: left; }
.slot-c { text-align: center; }
.slot-r { text-align: right; }

.man-head {
  border-bottom: 1px solid var(--rule);
  padding-bottom: 0.6rem;
  margin-bottom: 1.6rem;
}
.man-foot {
  border-top: 1px solid var(--rule);
  padding-top: 0.6rem;
  margin-top: 3rem;
}

/* ---- sections --------------------------------------------------------- */

.sec { margin: 0 0 1.6rem; }
.sec h2 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--bold);
  letter-spacing: 0.06em;
  margin: 0 0 0.55rem;
}
.sec .body { padding-left: var(--ind); }

p { margin: 0 0 0.85rem; }
p:last-child { margin-bottom: 0; }

b, strong { color: var(--bold); font-weight: 700; }
i, em { font-style: italic; }

a {
  color: inherit;
  text-decoration: underline;
  text-decoration-style: dotted;
  text-decoration-color: var(--dim);
  text-underline-offset: 3px;
}
a:hover {
  color: var(--accent);
  text-decoration-style: solid;
  text-decoration-color: currentColor;
}
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.dim, .note, .meta { color: var(--dim); }
.note, .meta { font-size: 0.9375rem; }

.synopsis .flag { white-space: nowrap; }

/* ---- tagged paragraphs (roff .TP) ------------------------------------- */

.tp { margin: 0; }
.tp dt { color: var(--bold); margin-top: 1.35rem; }
.tp dt:first-child { margin-top: 0; }
.tp dd { margin: 0.3rem 0 0 var(--ind); }

.fpr { overflow-wrap: anywhere; }

ul.plain { list-style: none; margin: 0; padding: 0; }
ul.plain li { margin-bottom: 0.15rem; }

/* ---- apropos listing (the blog index) --------------------------------- */

.apropos { list-style: none; margin: 0; padding: 0; }
.apropos li {
  display: grid;
  grid-template-columns: minmax(0, 24ch) 1ch minmax(0, 1fr);
  gap: 0 1ch;
  margin-bottom: 0.35rem;
}
.apropos .ap-dash { color: var(--dim); }
.apropos .ap-desc { color: var(--dim); }

/* ---- post body -------------------------------------------------------- */

.prose h2, .prose h3 {
  font-size: 1rem;
  color: var(--bold);
  margin: 1.75rem 0 0.5rem;
}
.prose ul, .prose ol { margin: 0 0 0.85rem; padding-left: 3ch; }
.prose li { margin-bottom: 0.2rem; }
.prose blockquote {
  margin: 0 0 0.85rem;
  padding-left: 2ch;
  border-left: 1px solid var(--rule);
  color: var(--dim);
}
.prose code {
  background: var(--tint);
  padding: 0.1em 0.4ch;
  border-radius: 2px;
}
.prose pre {
  background: var(--tint);
  padding: 0.85rem 1ch;
  overflow-x: auto;
  margin: 0 0 0.85rem;
  line-height: 1.45;
}
.prose pre code { background: none; padding: 0; }
.prose img { max-width: 100%; height: auto; }
.prose hr { border: 0; border-top: 1px solid var(--rule); margin: 1.75rem 0; }
.prose table { display: block; overflow-x: auto; border-collapse: collapse; }
.prose th, .prose td { border: 1px solid var(--rule); padding: 0.3rem 1ch; text-align: left; }

/* ---- narrow screens ---------------------------------------------------- */

@media (max-width: 34rem) {
  body { padding: 1.25rem 1rem 2.5rem; font-size: 15px; --ind: 2ch; }
  /* The right slot only ever repeated the left one; drop it before wrapping. */
  .slot-r { display: none; }
  .apropos li { grid-template-columns: 1fr; gap: 0; margin-bottom: 0.7rem; }
  .apropos .ap-dash { display: none; }
}

.vh {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

@media print {
  body { max-width: none; color: #000; background: #fff; }
  .nav { display: none; }
  a { text-decoration: none; }
}