/* Site chrome: navbar, post-meta, footer.
   Loaded on every page regardless of theme. Ports the old-theme look
   for these elements verbatim; variable names mapped to Jez's palette. */

/* ── Fonts used by the navbar ───────────────────────── */

@font-face {
  font-family: 'Linux Biolinum Outline';
  font-style: normal;
  font-weight: normal;
  src: local('Linux Biolinum Outline Regular'),
       url('/assets/fonts/LinBiolinum/LinBiolinum_aU.woff') format('woff');
  font-display: swap;
}
@font-face {
  font-family: 'Linux Libertine';
  font-style: normal;
  font-weight: normal;
  src: local('Linux Libertine'),
       url('/assets/fonts/LinLibertine/LinLibertine_Re-4.1_.8_.woff') format('woff');
  font-display: swap;
}

/* ── Navbar ─────────────────────────────────────────── */

/* Pull navbar flush to the top of the body — Jezs theme sets
   padding-top: var(--title-margin-top) on body; we override so the
   navbar sits at y=0. */
body {
  padding-top: 0;
}

.site-header {
  /* Override Jezs `header { margin-left/right: var(--line-height) }` rules
     in the narrow- and medium-width media queries so the navbar spans the
     full viewport. */
  margin: 0;
  max-width: none;
  border-top: 5px solid #424242;
  border-bottom: none;
  padding: 0;
  position: relative;
  overflow: visible;
}
.site-header .wrapper {
  max-width: none;
  padding: 0 30px;
  display: block;
  overflow: visible;
  min-height: 35.1px;
  line-height: 35.1px;
  border-bottom: 0.5px solid #d5d5d5;
}

/* Site title uses <a>, so we have to override Jez's generic
   a { color: var(--color-link) } + a:hover { text-decoration: underline }. */
a.site-title,
a.site-title:link,
a.site-title:visited {
  font-family: 'Linux Biolinum Outline';
  font-size: 49.5px;
  letter-spacing: -3px;
  color: #828282;
  line-height: 35.1px;
  margin-bottom: 0;
  white-space: nowrap;
  float: left;
  text-decoration: none;
}
a.site-title:hover {
  color: #000;
  text-decoration: none;
}

/* Three forms of the site title, cycled via media queries below.
   ≥500px: full, <500px: short, <350px: xs. */
.site-title .site-title-full { display: inline; }
.site-title .site-title-short { display: none; }
.site-title .site-title-xs { display: none; }

.site-nav {
  font-family: 'Linux Libertine', 'Computer Modern Concrete', Times, serif;
  font-size: 1.5rem;
  line-height: 35.1px;
  float: right;
  display: block;
}
.site-nav .trigger { white-space: nowrap; padding-top: 8px; }
.site-nav .page-link { color: #999; text-decoration: none; }
.site-nav .page-link:not(:last-child) { margin-right: 20px; }
.site-nav .page-link:hover { color: #424242; }
.site-nav .page-link.active { color: var(--color-accent-warm); }

@media (max-width: 800px) {
  .site-header .wrapper { padding: 0 15px; }
}
@media (max-width: 500px) {
  .site-title .site-title-full { display: none; }
  .site-title .site-title-short { display: inline; }
  .site-nav .page-link:not(:last-child) { margin-right: 10px; }
}
@media (max-width: 350px) {
  .site-title .site-title-short { display: none; }
  .site-title .site-title-xs { display: inline; }
}

/* ── Post header: full-width title + post-meta ─────── */

/* Let the post header extend rightward beyond main-width (into the
   sidenote column), but keep its left edge aligned with main. At narrow
   and medium breakpoints, Jez's inherited `margin-left: var(--line-height)`
   already matches main. At very-wide breakpoints where main is centered,
   manually compute the left margin so header still starts at main's left. */
header:not(.site-header) {
  max-width: none;
  margin-right: 0;
  padding-right: var(--line-height);
  /* Jez only applies this at >= 1365px; we want it at all widths so the
     post-divider and content below don't butt up against post-meta. */
  margin-bottom: var(--line-height);
}
@media screen and (min-width: calc(745px + 2 * (52px + 206px + 52px))) {
  header:not(.site-header) {
    /* 100% (not 100vw) so scrollbar width is already excluded — match
       main's `margin-left: auto` centering exactly. */
    margin-left: calc((100% - var(--main-width)) / 2);
    padding-right: 0;
  }
}

/* ── Post meta (date · author · tags) under the title ─ */

.post-meta {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin: 0.15rem 0;
}
.post-meta .post-tags { font-style: italic; }

/* Subtle divider between post header and content, at body-text width.
   Inserted by the vendored template as <hr class="post-divider"> at the
   top of <main> when $date$ is set, so main's layout constraints give
   it the right width/alignment automatically. */
hr.post-divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin-top: 0;
  margin-bottom: var(--line-height);
}

/* ── Site footer (last-modified on every page) ──────── */

.site-footer {
  max-width: 1440px;
  margin: 0 auto;
  padding: 1.5rem 2rem;
  border-top: 1px solid var(--color-border);
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}
.site-footer .wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.site-footer .last-modified {
  color: #ccc;
  font-size: 0.8rem;
}
@media (max-width: 500px) {
  .site-footer { padding: 1rem; }
}