/* =============================================================
   blog.css — the only blog-specific layer on top of kauz.css.
   Everything composes design-system tokens: no invented hues, no
   new type scale, no rounded corners, no shadows. It covers what
   kauz doesn't ship (post archive, image figures, lightbox) plus a
   short, deliberate set of deviations — all flagged in the block
   below so the departures from the system are explicit.
   ============================================================= */

/* -------------------------------------------------------------
   DELIBERATE DEVIATIONS (each is one knob, trivially reverted)
   -------------------------------------------------------------
   1. Narrower measure. kauz ships --max-content-width: 960px for
      app/doc layouts; long-form prose reads better tighter, so we
      override the single token. Header, article and footer all
      follow it — they key off the same variable.
   2. Calmer chrome. kauz links are ember by default; in the header
      nav and the post byline we mute them to secondary text so the
      accent is reserved for in-content links. The site header is
      also laid out as one row (wordmark left, nav right).
   ------------------------------------------------------------- */
:root { --max-content-width: 720px; }

/* --- Site header: wordmark left, muted nav right, one line --- */
body > header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-2) var(--space-3);
  flex-wrap: wrap;
}
.wordmark {
  margin: 0;
  font-size: var(--fs-h3);
  font-weight: 700;
  letter-spacing: var(--tracking-tight);
}
.wordmark a { color: var(--color-fg); text-decoration: none; }
.wordmark a:hover { color: var(--color-accent); }
body > header nav { margin: 0; }
body > header nav a { color: var(--color-fg-muted); }
body > header nav a:hover,
body > header nav a[aria-current] { color: var(--color-fg); }

/* --- Post archive: one flat list ----------------------------- */
.post-list { list-style: none; padding: 0; margin: var(--space-3) 0 0; }
.post-list li {
  display: flex;
  gap: var(--space-2);
  align-items: baseline;
  padding: var(--space-1) 0;
  margin: 0;
  border-bottom: var(--border-thin);
}
.post-list time {
  flex: none;
  min-width: 6.5em;
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  color: var(--color-fg-muted);
  font-variant-numeric: tabular-nums;
}
.post-list a { text-decoration: none; }
.post-list a:hover { text-decoration: underline; }

/* --- Article header: title, then muted date + category ------- */
.article-header { margin-bottom: var(--space-4); }
.article-header h1 { margin: 0; }
.post-meta {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  color: var(--color-fg-muted);
}
.post-meta a { color: var(--color-fg-muted); }
.post-meta a:hover { color: var(--color-fg); }

/* --- Clickable image figures (gallery items) ----------------- */
/* Images are deliberately small — click to open full-size in the
   lightbox. inline-block lets consecutive images flow side by side
   and wrap, so a run reads as a group with no extra markup; a lone
   image just sits small and left-aligned. */
figure.gallery-item {
  display: inline-block;
  vertical-align: top;
  width: min(18rem, 100%);
  margin: var(--space-1) var(--space-2) var(--space-2) 0;
}
a.lightbox {
  display: block;
  border: var(--border-thin);
  cursor: zoom-in;
  line-height: 0;
}
a.lightbox:hover { border-color: var(--color-accent); }
figure.gallery-item img { width: 100%; height: auto; display: block; }
figure.gallery-item figcaption {
  padding: 6px 10px;
  border: var(--border-thin);
  border-top: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
}

/* --- Lightbox (native <dialog>, built by lightbox.js) -------- */
.lightbox-modal {
  padding: 0;
  border: 0;
  margin: 0;
  max-width: 100vw;
  max-height: 100dvh;
  width: 100%;
  height: 100%;
  background: transparent;
  color: var(--color-fg);
  overflow: hidden;
}
.lightbox-modal::backdrop {
  background: color-mix(in srgb, var(--soot-0) 92%, transparent);
}
.lb-stage {
  position: relative;
  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;
  padding: var(--space-4);
}
.lb-img {
  max-width: min(96vw, 1400px);
  max-height: 84dvh;
  width: auto;
  height: auto;
  display: block;
  border: var(--border-normal);
  background: var(--color-bg);
}
/* Controls are real <button>s, so they inherit kauz's button chrome
   (2px border, ember-invert hover). We only place and size them, and
   lift the fill to soot-1 so they read against the dark backdrop. */
.lb-stage button {
  position: absolute;
  z-index: 2;
  width: 40px;
  height: 40px;
  padding: 0;
  background: var(--color-bg-elev);
  font-family: var(--font-mono);
  font-size: 1.25rem;
}
.lb-close { top: var(--space-3); right: var(--space-3); }
.lb-prev  { left: var(--space-3);  top: 50%; transform: translateY(-50%); }
.lb-next  { right: var(--space-3); top: 50%; transform: translateY(-50%); }
.lb-caption {
  position: absolute;
  bottom: var(--space-3);
  left: 50%;
  transform: translateX(-50%);
  max-width: 90vw;
  text-align: center;
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  color: var(--color-fg-muted);
  background: var(--color-bg-elev);
  border: var(--border-thin);
  padding: 4px 10px;
}
.lb-count { color: var(--color-fg-dim); }
/* Single-image posts: hide the nav arrows. */
.lightbox-modal[data-single="true"] .lb-prev,
.lightbox-modal[data-single="true"] .lb-next { display: none; }

@media (max-width: 640px) {
  .lb-prev { left: 4px; }
  .lb-next { right: 4px; }
}