/* ── Reset & base ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:            #faf8f5;
  --bg-subtle:     #f0ede8;
  --bg-hover:      #e4e0d8;
  --bg-lifted:     #ffffff;   /* table rows & cards lifted above bg */
  --border:        #c8c5c0;
  --border-strong: #a8a5a0;
  --text:          #111110;
  --text-muted:    #5a5850;
  --text-faint:    #8a8880;
  --white:         #ffffff;

  --serif: 'Georgia', 'Times New Roman', serif;
  --sans:  'Helvetica Neue', Helvetica, Arial, sans-serif;

  /* Layout */
  --content-max:  680px;   /* article text column */
  --toc-width:    190px;   /* right toc column */
  --site-max:     1100px;  /* outer wrapper — wider to give TOC room */
  --pad:          2rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg:            #1e1c1a;
    --bg-subtle:     #2a2724;   /* used for thead, detail panels */
    --bg-hover:      #3a3734;
    --bg-lifted:     #333030;   /* table rows & cards — clearly above bg */
    --border:        #3a3830;
    --border-strong: #4a4840;
    --text:          #dedad4;
    --text-muted:    #b0aea8;
    --text-faint:    #7a7870;
    --white:         #252320;   /* kept for backwards compat */
  }

  /* Section blocks must read against --bg */
  .section-block {
    background: var(--bg-lifted);
    border-color: var(--border);
  }
  .section-block:hover { background: var(--bg-hover); }
}

html { font-size: 19px; }   /* slightly larger for readability */

body {
  font-family: var(--serif);
  color: var(--text);
  background: var(--bg);
  line-height: 1.75;
}

a { color: inherit; text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; display: block; }

/* ── Site wrapper ─────────────────────────────────────────── */
.site-wrapper {
  max-width: var(--site-max);
  margin: 0 auto;
  padding: 0 var(--pad);
}

/* ══════════════════════════════════════════════════════════
   HEADER & NAV
══════════════════════════════════════════════════════════ */
.site-header {
  padding: 2rem 0 1.2rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 3rem;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

/* Logo — flex row, items aligned to their actual visual centre.
   Per Tonsky: set line-height:1 on text so the em-box doesn't
   add phantom space above/below the cap-height, then let the
   parent flex align-items:center do the optical work. */
.site-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
  /* no padding-top tricks needed when line-height is honest */
}

.site-logo img {
  height: 38px;
  width: auto;
  display: block;          /* kills inline descender gap */
}

.site-logo__text {
  font-family: var(--serif);
  font-size: 1.05rem;
  font-weight: normal;
  line-height: 1;          /* collapse phantom whitespace */
  letter-spacing: 0.02em;
  color: var(--text);
  white-space: nowrap;
}

/* Desktop nav — same trick: line-height:1 on links so their
   flex baseline is their cap-height, not a padded em-box. */
.site-nav {
  font-family: var(--sans);
  font-size: 0.72rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 1.4rem;
}

.site-nav a {
  color: var(--text-muted);
  white-space: nowrap;
  line-height: 1;          /* collapse phantom whitespace */
  display: block;
  transition: color 0.15s;
}

.site-nav a:hover { color: var(--text); text-decoration: none; }
.site-nav a.active {
  color: var(--text);
  /* Use box-shadow instead of border-bottom so it doesn't
     affect the element's layout height and throw off alignment */
  box-shadow: 0 1px 0 0 var(--text);
}

/* Burger button — hidden on desktop */
.nav-burger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.3rem;
  color: var(--text);
}

.nav-burger svg { display: block; }

/* Mobile drawer */
.nav-drawer {
  display: none;
  flex-direction: column;
  gap: 0;
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 0.8rem 0;
}

.nav-drawer a {
  font-family: var(--sans);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 0.55rem var(--pad);
  display: block;
}

.nav-drawer a:hover { color: var(--text); text-decoration: none; }
.nav-drawer a.active { color: var(--text); }
.nav-drawer.open { display: flex; }

/* Breakpoint: collapse nav to burger */
@media (max-width: 680px) {
  .site-nav { display: none; }
  .nav-burger { display: block; }
}

/* ══════════════════════════════════════════════════════════
   FOOTER
══════════════════════════════════════════════════════════ */
.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 5rem;
  padding: 2rem 0;
  font-family: var(--sans);
  font-size: 0.72rem;
  color: var(--text-faint);
  letter-spacing: 0.06em;
  text-align: center;
}

/* ══════════════════════════════════════════════════════════
   FRONT PAGE — SECTION BLOCKS
══════════════════════════════════════════════════════════ */

/* Centred wrapper for the front page — no TOC column reserved */
.home-layout,
.list-layout {
  max-width: var(--content-max);
  margin: 0 auto;
}

.section-grid {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin: 2.5rem 0 3rem;
  max-width: var(--content-max);
}

.section-block {
  display: flex;
  align-items: baseline;
  gap: 1.4rem;
  padding: 1.3rem 1.6rem;
  border: 1px solid var(--border);
  background: var(--bg);
  transition: background 0.15s;
}

.section-block:hover { background: var(--bg-subtle); text-decoration: none; }

/* label hidden — removed per request */
.section-block__label { display: none; }

.section-block__title {
  font-family: var(--serif);
  font-size: 1.2rem;
  font-weight: normal;
  color: var(--text);
  flex: 0 0 auto;
  line-height: 1.3;
}

.section-block__desc {
  font-family: var(--sans);
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ══════════════════════════════════════════════════════════
   PAGE HEADER
══════════════════════════════════════════════════════════ */
.page-header {
  margin-bottom: 2.5rem;
  padding-bottom: 1.4rem;
  border-bottom: 1px solid var(--border);
  max-width: var(--content-max);
}

.page-header__label {
  font-family: var(--sans);
  font-size: 0.67rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 0.5rem;
}

.page-header__label a { color: var(--text-faint); }
.page-header__label a:hover { color: var(--text); text-decoration: none; }

.page-header__title {
  font-family: var(--serif);
  font-size: 1.9rem;
  font-weight: normal;
  line-height: 1.2;
  color: var(--text);
}

.page-header__meta {
  font-family: var(--sans);
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.6rem;
  letter-spacing: 0.02em;
}

.page-header__meta a { color: var(--text-muted); }
.page-header__meta a:hover { color: var(--text); }

/* ══════════════════════════════════════════════════════════
   SINGLE PAGE LAYOUT (article + TOC)
══════════════════════════════════════════════════════════ */
.single-layout {
  display: flex;
  align-items: flex-start;
  gap: 3.5rem;
}

.single-article { flex: 0 0 var(--content-max); }

/* ── TOC ── */
.toc {
  flex: 0 0 var(--toc-width);
  position: sticky;
  top: 2rem;
  max-height: calc(100vh - 4rem);
  overflow-y: auto;
}

.toc__inner {
  border-left: 1px solid var(--border);
  padding-left: 1rem;
}

.toc__title {
  font-family: var(--sans);
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 0.6rem;
}

.toc-items { list-style: none; }

.toc-item { margin-bottom: 0.3rem; }

.toc-item a {
  font-family: var(--sans);
  font-size: 0.76rem;
  color: var(--text-muted);
  line-height: 1.4;
  display: block;
  transition: color 0.12s;
}

.toc-item a:hover { color: var(--text); text-decoration: none; }
.toc-item a.active { color: var(--text); }

/* ══════════════════════════════════════════════════════════
   PAGE CONTENT — TYPOGRAPHY
══════════════════════════════════════════════════════════ */
.page-content { max-width: var(--content-max); }

.page-content p  { margin-bottom: 1.2em; }

.page-content h2 {
  font-size: 1.35rem; font-weight: normal;
  margin: 2.2em 0 0.6em;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.3em;
  color: var(--text);
}

.page-content h3 {
  font-size: 1.12rem; font-weight: normal;
  margin: 1.8em 0 0.5em;
  color: var(--text);
}

.page-content h4 {
  font-size: 1rem; font-weight: normal; font-style: italic;
  margin: 1.5em 0 0.4em;
  color: var(--text);
}

.page-content h5 {
  font-family: var(--sans);
  font-size: 0.8rem; font-weight: 600;
  letter-spacing: 0.09em; text-transform: uppercase;
  margin: 1.4em 0 0.4em;
  color: var(--text-muted);
}

.page-content h6 {
  font-family: var(--sans);
  font-size: 0.73rem; font-weight: normal;
  letter-spacing: 0.06em; text-transform: uppercase;
  margin: 1.2em 0 0.3em;
  color: var(--text-faint);
}

.page-content ul,
.page-content ol   { margin: 0.8em 0 0.8em 1.4em; }
.page-content li   { margin-bottom: 0.3em; }

.page-content blockquote {
  border-left: 2px solid var(--border);
  margin: 1.5em 0; padding: 0.4em 1.2em;
  color: var(--text-muted);
}

/* ── General tables in content ── */
.page-content table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--sans);
  font-size: 0.85rem;
  margin: 1.5em 0;
}

.page-content thead th {
  text-align: left;
  padding: 0.45rem 0.8rem;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  background: var(--bg-subtle);
  border-bottom: 2px solid var(--border);
}

.page-content tbody tr {
  background: var(--bg-lifted);
  border-bottom: 1px solid var(--border);
  transition: background 0.1s;
}

.page-content tbody tr:hover { background: var(--bg-subtle); }

.page-content td {
  padding: 0.5rem 0.8rem;
  color: var(--text);
  vertical-align: top;
}

/* ══════════════════════════════════════════════════════════
   POST LIST
══════════════════════════════════════════════════════════ */
.post-list { list-style: none; }

.post-list__item {
  padding: 1.3rem 0;
  border-bottom: 1px solid var(--border);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.25rem 2rem;
  align-items: baseline;
}

.post-list__item:first-child { border-top: 1px solid var(--border); }

.post-list__title {
  font-family: var(--serif);
  font-size: 1rem; font-weight: normal;
  color: var(--text); grid-column: 1;
}

.post-list__title a:hover { text-decoration: underline; }

.post-list__tags {
  font-family: var(--sans);
  font-size: 0.68rem; color: var(--text-faint);
  grid-column: 1; margin-top: 0.1rem;
}

.post-list__tags a {
  color: var(--text-faint);
  margin-right: 0.5em;
  text-transform: uppercase; letter-spacing: 0.07em;
}

.post-list__tags a:hover { color: var(--text-muted); text-decoration: none; }

.post-list__date {
  font-family: var(--sans);
  font-size: 0.72rem; color: var(--text-faint);
  white-space: nowrap; grid-row: 1; grid-column: 2;
}

/* ══════════════════════════════════════════════════════════
   TAG LIST
══════════════════════════════════════════════════════════ */
.tag-list { list-style: none; }

.tag-list__item {
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
}

.tag-list__item:first-child { border-top: 1px solid var(--border); }

.tag-list__title {
  font-family: var(--serif);
  font-size: 1rem; font-weight: normal; color: var(--text);
}

.tag-list__meta {
  font-family: var(--sans);
  font-size: 0.73rem; color: var(--text-muted); margin-top: 0.2rem;
}

/* ══════════════════════════════════════════════════════════
   BIBLIOGRAFI
══════════════════════════════════════════════════════════ */
.bib-search { margin: 1.5rem 0 0; }

.bib-search input {
  width: 100%; max-width: 480px;
  padding: 0.5rem 0.8rem;
  border: 1px solid var(--border);
  font-family: var(--sans); font-size: 0.88rem;
  background: var(--white); color: var(--text);
  outline: none; border-radius: 0; -webkit-appearance: none;
}

.bib-search input:focus { border-color: var(--border-strong); }

.bib-filters {
  display: flex; flex-wrap: wrap; gap: 0.4rem;
  margin: 0.7rem 0 1rem;
}

.bib-filter {
  font-family: var(--sans); font-size: 0.7rem;
  padding: 0.28rem 0.75rem;
  background: transparent; color: var(--text-muted);
  border: 1px solid var(--border); cursor: pointer;
  letter-spacing: 0.06em; text-transform: uppercase;
  transition: background 0.12s, color 0.12s;
}

.bib-filter:hover { background: var(--bg-subtle); }

.bib-filter.active {
  background: var(--text); color: var(--bg); border-color: var(--text);
}

/* Bib table — gets its own tinted background so rows can lift clearly above it */
.bib-table {
  width: 100%; border-collapse: collapse;
  font-family: var(--sans); font-size: 0.83rem;
  background: var(--bg-subtle);
  outline: 1px solid var(--border);
}

.bib-table thead th {
  text-align: left;
  padding: 0.45rem 0.75rem;
  font-size: 0.67rem; font-weight: 500;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--text-muted);
  background: var(--bg-subtle);
  border-bottom: 2px solid var(--border);
  cursor: pointer; user-select: none; white-space: nowrap;
}

.bib-table thead th:hover { color: var(--text); }

.bib-table tbody tr.bib-row {
  background: var(--bg-lifted);       /* lifted from bg in both modes */
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: background 0.1s;
}

.bib-table tbody tr.bib-row:hover    { background: var(--bg-subtle); }
.bib-table tbody tr.bib-row.selected { background: var(--bg-hover); }

.bib-table td {
  padding: 0.55rem 0.75rem;
  color: var(--text); vertical-align: top;
}

.bib-table td.muted { color: var(--text-muted); }

/* Detail row */
.bib-detail-row { cursor: default; }
.bib-detail-row:hover { background: transparent !important; }
.bib-detail-row td { padding: 0 !important; border-bottom: none; }

.bib-detail {
  background: var(--bg-subtle);
  border-top: 1px solid var(--border);
  border-bottom: 2px solid var(--border);
  padding: 1.1rem 1.3rem;
  font-family: var(--sans); font-size: 0.83rem; line-height: 1.6;
}

.bib-detail-title {
  font-family: var(--serif); font-size: 1.05rem;
  color: var(--text); margin-bottom: 0.15rem;
}

.bib-detail-author {
  font-size: 0.83rem; color: var(--text-muted); margin-bottom: 0.7rem;
}

.bib-detail-grid {
  display: grid; grid-template-columns: auto 1fr; gap: 0.2rem 1.1rem;
}

.bib-detail-label {
  font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.07em;
  color: var(--text-faint); white-space: nowrap; padding-top: 0.05rem;
}

.bib-detail-value { font-size: 0.81rem; color: var(--text); }
.bib-detail-value a { color: var(--text-muted); }
.bib-detail-value a:hover { color: var(--text); }

/* ══════════════════════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════════════════════ */

/* Hide TOC, keep article full width */
@media (max-width: 900px) {
  /* When TOC is absent, centre the article like the front page */
.single-layout.no-toc {
  display: block;
  max-width: var(--content-max);
  margin: 0 auto;
}

.single-layout { flex-direction: column; }
  .toc           { display: none; }
  .single-article { flex: none; width: 100%; }
}

@media (max-width: 600px) {
  :root { --pad: 1.1rem; }
  html  { font-size: 17px; }

  .post-list__item  { grid-template-columns: 1fr; }
  .post-list__date  { grid-row: auto; grid-column: 1; margin-top: 0.2rem; }

  .bib-table        { font-size: 0.75rem; }
  .bib-table td,
  .bib-table thead th { padding: 0.35rem 0.45rem; }
}