/* ---------------------------------------------------------------
   Eagar Corpus site — main stylesheet
   --------------------------------------------------------------- */

:root {
  --accent: #c89b00;
  --accent-light: #fef9e7;
  --accent-soft: #f8f6f1;
  --text: #2b2b2b;
  --text-muted: #666;
  --text-soft: #888;
  --border: #e0ddd6;
  --bg: #fafaf7;
  --code-bg: #f4f1ea;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "Source Serif Pro", Charter, Georgia, serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
}

a { color: var(--text); text-decoration: underline; text-decoration-color: var(--border); text-underline-offset: 2px; }
a:hover { text-decoration-color: var(--accent); }

h1, h2, h3 { font-family: "Source Sans Pro", system-ui, sans-serif; font-weight: 600; color: var(--text); }
h1 { font-size: 1.8rem; line-height: 1.25; margin: 1rem 0 1.5rem; }
h2 { font-size: 1.3rem; margin: 2rem 0 1rem; }
h3 { font-size: 1.1rem; margin: 1.5rem 0 0.75rem; }

code, pre { font-family: ui-monospace, "SF Mono", Consolas, monospace; }
code { font-size: 0.92em; background: var(--code-bg); padding: 0.1em 0.3em; border-radius: 3px; }

/* ---------------------------------------------------------------
   Header & footer
   --------------------------------------------------------------- */

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  border-bottom: 1px solid var(--border);
  background: white;
}
.site-title {
  font-family: "Source Sans Pro", system-ui, sans-serif;
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
}
.site-header nav a {
  margin-left: 1.5rem;
  font-family: "Source Sans Pro", system-ui, sans-serif;
  font-size: 0.92rem;
  text-decoration: none;
  color: var(--text-muted);
}
.site-header nav a:hover { color: var(--accent); }

main {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem;
}

.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 4rem;
  padding: 2rem;
  color: var(--text-muted);
  font-size: 0.88rem;
  max-width: 1400px;
  margin-left: auto;
  margin-right: auto;
}

/* ---------------------------------------------------------------
   Home page
   --------------------------------------------------------------- */

.hero { margin: 2rem 0 3rem; }
.hero h1 { font-size: 2.5rem; margin: 0 0 0.5rem; }
.hero .subtitle { font-size: 1.15rem; color: var(--text-muted); margin: 0; }

.corpus-stats {
  display: flex;
  gap: 3rem;
  padding: 1.5rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  margin-bottom: 3rem;
}
.corpus-stats .stat {
  font-family: "Source Sans Pro", system-ui, sans-serif;
  color: var(--text-muted);
}
.corpus-stats .num {
  display: block;
  font-size: 2.2rem;
  font-weight: 600;
  color: var(--text);
  font-family: "Source Serif Pro", Charter, Georgia, serif;
}

.entry-points {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}
.entry-card { padding: 1.5rem; border: 1px solid var(--border); border-radius: 4px; background: white; }
.entry-card h2 { margin-top: 0; }
.entry-card h2 a { text-decoration: none; }
.entry-card h2 a:hover { color: var(--accent); }
.entry-card p { margin-bottom: 0; color: var(--text-muted); }

/* ---------------------------------------------------------------
   Browse tables
   --------------------------------------------------------------- */

.filter-controls {
  display: flex;
  gap: 1rem;
  align-items: center;
  margin-bottom: 1.5rem;
}
#filter-input { padding: 0.5rem 0.75rem; border: 1px solid var(--border); border-radius: 3px; min-width: 280px; font-family: inherit; font-size: 0.95rem; }
#sort-select { padding: 0.5rem; border: 1px solid var(--border); border-radius: 3px; font-family: inherit; }

.browse-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}
.browse-table th, .browse-table td {
  text-align: left;
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid var(--border);
}
.browse-table th {
  font-family: "Source Sans Pro", system-ui, sans-serif;
  font-weight: 600;
  color: var(--text-muted);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.browse-table th.num, .browse-table td.num { text-align: right; }
.browse-table tr:hover { background: var(--accent-soft); }
.browse-table tr.proposed-row { color: var(--text-muted); font-style: italic; }
.proposed-flag {
  font-size: 0.75rem;
  background: var(--accent-soft);
  color: var(--accent);
  padding: 0.1rem 0.4rem;
  border-radius: 3px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.proposed-flag-big {
  font-family: "Source Sans Pro", system-ui, sans-serif;
  font-size: 0.92rem;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 0.5rem 1rem;
  border-radius: 3px;
  display: inline-block;
  margin: 0.5rem 0;
}

/* ---------------------------------------------------------------
   Lecture page
   --------------------------------------------------------------- */

.lecture-page main {
  max-width: none;
  padding: 1.5rem 2rem;
}

.lecture-header h1 { margin: 0 0 0.5rem; }
.lecture-meta {
  font-family: "Source Sans Pro", system-ui, sans-serif;
  font-size: 0.9rem;
  color: var(--text-muted);
  display: flex;
  gap: 0.5rem;
  align-items: center;
  flex-wrap: wrap;
}
.lecture-meta .meta-divider { color: var(--border); }
.lecture-meta a { color: var(--text-muted); }

.layer-toolbar {
  display: flex;
  gap: 0.5rem;
  margin: 1.5rem 0 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}
.layer-toggle {
  background: white;
  border: 1px solid var(--border);
  padding: 0.5rem 1rem;
  font-family: "Source Sans Pro", system-ui, sans-serif;
  font-size: 0.9rem;
  cursor: pointer;
  border-radius: 3px;
  color: var(--text-muted);
}
.layer-toggle .check { opacity: 0; }
.layer-toggle.active { color: var(--text); background: var(--accent-light); border-color: var(--accent); }
.layer-toggle.active .check { opacity: 1; color: var(--accent); }
.layer-toggle:hover { background: var(--accent-soft); }

.lecture-body {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 2rem;
  align-items: start;
}

.section-nav {
  position: sticky;
  top: 1rem;
  font-family: "Source Sans Pro", system-ui, sans-serif;
  font-size: 0.85rem;
  max-height: calc(100vh - 2rem);
  overflow-y: auto;
}
.section-nav a {
  display: block;
  padding: 0.4rem 0.5rem;
  text-decoration: none;
  color: var(--text-muted);
  border-left: 2px solid transparent;
  line-height: 1.35;
}
.section-nav a:hover { color: var(--text); background: var(--accent-soft); }
.section-nav a.active { color: var(--text); border-left-color: var(--accent); background: var(--accent-light); }
.section-nav .sec-num { color: var(--accent); font-weight: 600; }
.section-nav .sec-title { display: block; }
.section-nav .sec-ts { color: var(--text-soft); font-size: 0.78rem; }

.columns {
  display: grid;
  gap: 1.5rem;
  align-items: start;
}
.columns[data-active-layers="l3"] { grid-template-columns: 1fr; }
.columns[data-active-layers="l2"] { grid-template-columns: 1fr; }
.columns[data-active-layers="l3,l2"] { grid-template-columns: 1fr 1fr; }

.column {
  display: none;
  min-width: 0;
  max-height: calc(100vh - 8rem);
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: white;
}
.column.visible { display: block; }

.col-header {
  position: sticky;
  top: 0;
  background: var(--accent-soft);
  padding: 0.5rem 1rem;
  font-family: "Source Sans Pro", system-ui, sans-serif;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  z-index: 1;
}

.layer-content { padding: 1.5rem; }

/* Layer 3 styling */
.l3-section h2 {
  font-size: 1.25rem;
  margin: 2rem 0 1rem;
  font-weight: 600;
}
.l3-section h2 .ts { color: var(--text-soft); font-size: 0.85rem; font-family: ui-monospace, monospace; font-weight: 400; }

.l3-paragraph {
  padding: 0.4em 0.6em;
  margin: 0 -0.6em 1em;
  border-radius: 4px;
  cursor: pointer;
  position: relative;
  transition: background 100ms;
}
.l3-paragraph:hover { background: var(--accent-soft); }
.l3-paragraph.active { background: var(--accent-light); box-shadow: -3px 0 0 var(--accent); }
.l3-paragraph .paragraph-body p:first-child { margin-top: 0; }
.l3-paragraph .paragraph-body p:last-child { margin-bottom: 0; }
.l3-paragraph.student-turn { font-style: italic; }
.l3-paragraph.stage-direction { color: var(--text-muted); font-size: 0.95em; }

.anchor-marker {
  font-family: ui-monospace, monospace;
  font-size: 0.7rem;
  color: var(--text-soft);
  display: block;
  margin-bottom: 0.2rem;
}
.anchor-marker .ts { color: var(--text-soft); margin-left: 0.5rem; }

.register-marker {
  position: absolute;
  right: 0.4rem;
  top: 0.4rem;
  color: var(--accent);
  cursor: pointer;
  font-size: 0.9rem;
  opacity: 0;
  transition: opacity 100ms;
}
.l3-paragraph:hover .register-marker { opacity: 0.6; }
.register-marker:hover { opacity: 1 !important; }
.register-marker.has-note { opacity: 0.6; }

/* Layer 2 styling */
.l2-paragraph {
  padding: 0.4em 0.6em;
  margin: 0 -0.6em 0.9em;
  font-family: ui-monospace, "SF Mono", Consolas, monospace;
  font-size: 0.86rem;
  line-height: 1.55;
  color: var(--text-muted);
  border-radius: 4px;
  cursor: pointer;
}
.l2-paragraph:hover { background: var(--accent-soft); }
.l2-paragraph.active { background: var(--accent-light); box-shadow: -3px 0 0 var(--accent); color: var(--text); }
.l2-paragraph .paragraph-body p:first-child { margin-top: 0; }
.l2-paragraph .paragraph-body p:last-child { margin-bottom: 0; }

/* Case index at bottom */
.case-index-block {
  margin-top: 3rem;
  padding: 1.5rem;
  border-top: 1px solid var(--border);
}
.case-list { list-style: none; padding: 0; }
.case-list li { padding: 0.6rem 0; border-bottom: 1px dotted var(--border); }
.case-list .anchor-jump { font-family: ui-monospace, monospace; font-size: 0.82rem; color: var(--text-muted); margin-left: 0.5rem; }
.case-frame { margin: 0.3rem 0 0; color: var(--text-muted); font-size: 0.92rem; }

/* Register popup */
.popup {
  position: fixed;
  top: 20%;
  left: 50%;
  transform: translateX(-50%);
  background: white;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.5rem 2rem;
  max-width: 600px;
  max-height: 70vh;
  overflow-y: auto;
  box-shadow: 0 10px 40px rgba(0,0,0,0.15);
  z-index: 100;
}
.popup.hidden { display: none; }
.popup-close { position: absolute; top: 0.5rem; right: 1rem; background: none; border: none; font-size: 1.5rem; cursor: pointer; color: var(--text-soft); }
.popup h3 { margin-top: 0; }
.popup-body { font-size: 0.95rem; }

/* ---------------------------------------------------------------
   Case page
   --------------------------------------------------------------- */

.case-page main { max-width: 900px; }
.case-summary { color: var(--text-muted); }
.appearance { padding: 1.2rem 0; border-bottom: 1px solid var(--border); }
.appearance-meta {
  font-family: "Source Sans Pro", system-ui, sans-serif;
  font-size: 0.92rem;
  color: var(--text-muted);
  display: flex;
  gap: 0.5rem;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 0.5rem;
}
.appearance-meta .meta-divider { color: var(--border); }
.appearance-meta .anchor { font-family: ui-monospace, monospace; font-size: 0.85rem; }
.appearance-frame { font-style: italic; color: var(--text-muted); margin: 0.3rem 0; }
.appearance-snippet {
  border-left: 3px solid var(--border);
  padding-left: 1rem;
  margin: 0.5rem 0;
  color: var(--text);
}

/* ---------------------------------------------------------------
   Search
   --------------------------------------------------------------- */

.search-controls { margin: 1rem 0 2rem; }
#search-input { width: 100%; padding: 0.7rem 1rem; font-size: 1.1rem; border: 1px solid var(--border); border-radius: 4px; font-family: inherit; }
.scope-filters { margin-top: 0.8rem; display: flex; gap: 1rem; font-family: "Source Sans Pro", system-ui, sans-serif; font-size: 0.9rem; color: var(--text-muted); }
#search-status { color: var(--text-muted); margin-bottom: 1rem; }
.search-result { padding: 1rem 0; border-bottom: 1px solid var(--border); }
.search-result .result-type { font-family: "Source Sans Pro", system-ui, sans-serif; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.5px; color: var(--accent); margin-bottom: 0.2rem; }
.search-result .result-title { font-weight: 600; }
.search-result .result-snippet { color: var(--text-muted); font-size: 0.92rem; margin: 0.3rem 0 0; }
.search-result mark { background: var(--accent-light); color: var(--text); padding: 0 2px; }

/* ---------------------------------------------------------------
   About / prose
   --------------------------------------------------------------- */

.prose { max-width: 700px; }
.prose p { margin: 1em 0; }
.prose ul { padding-left: 1.5rem; }
.prose ul li { margin: 0.4em 0; }

/* ---------------------------------------------------------------
   Responsive
   --------------------------------------------------------------- */

@media (max-width: 900px) {
  .lecture-body { grid-template-columns: 1fr; }
  .section-nav { position: static; max-height: none; }
  .columns[data-active-layers="l3,l2"] {
    grid-template-columns: 1fr;
  }
  .entry-points { grid-template-columns: 1fr; }
  .corpus-stats { flex-wrap: wrap; gap: 1.5rem; }
}
/* ---------------------------------------------------------------
   Dark mode — appended to site.css
   Honors prefers-color-scheme: dark from the OS/browser.
   --------------------------------------------------------------- */

@media (prefers-color-scheme: dark) {
  :root {
    --accent: #e0b54a;        /* slightly brighter gold for contrast */
    --accent-light: #3a3220;   /* dark amber */
    --accent-soft: #232018;    /* deep warm dark */
    --text: #e8e4d6;           /* warm off-white */
    --text-muted: #a59f8e;
    --text-soft: #807a6c;
    --border: #3a3530;
    --bg: #1a1814;             /* deep warm brown-black */
    --code-bg: #2a2620;
  }

  body { background: var(--bg); color: var(--text); }

  /* Header background should match dark bg, not white */
  .site-header { background: #211e18; }

  /* Links: keep border-color underlines but adjusted for dark */
  a { text-decoration-color: var(--border); }
  a:hover { text-decoration-color: var(--accent); }

  /* Code/pre blocks */
  code { background: var(--code-bg); color: var(--text); }

  /* Case map page adjustments */
  body.casemap-page .casemap-layout {
    background: #211e18;
    border-color: var(--border);
  }
  body.casemap-page #casemap-vis { background: #211e18; }

  .casemap-controls,
  .casemap-legend {
    background: rgba(33, 30, 24, 0.92);
    color: var(--text-muted);
  }

  /* Bubble strokes need to be lighter in dark mode for visibility */
  .case-node circle { stroke-opacity: 0.7; }
  .case-node text { fill: white; }   /* unchanged - text on colored bubble */
  .case-node.hover circle { stroke: var(--text); }

  /* Side panel */
  #casemap-panel {
    background: #1f1c16;
    border-left-color: var(--border);
  }

  /* Treatment badges */
  #casemap-panel .treatment.substantive {
    background: var(--text);
    color: var(--bg);
  }
  #casemap-panel .treatment.brief {
    background: var(--border);
    color: var(--text-muted);
  }
}


/* YouTube link in lecture header */
.lecture-meta .yt-link {
  font-family: "Source Sans Pro", system-ui, sans-serif;
  font-size: 0.88rem;
  text-decoration: none;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}
.lecture-meta .yt-link:hover { color: var(--accent); border-bottom-color: var(--accent); }
/* ---------------------------------------------------------------
   Dark mode — additional overrides for hardcoded backgrounds
   Appended after the existing @media (prefers-color-scheme: dark) block
   in site.css. These rules target elements that use `background: white`
   directly instead of via --bg, and so don't pick up the variable swap.
   --------------------------------------------------------------- */

@media (prefers-color-scheme: dark) {
  /* Site-wide hardcoded white backgrounds */
  .site-header,
  .entry-card,
  .layer-toolbar,
  .column,
  .popup {
    background: #211e18 !important;
  }

  /* Paragraph hover/active rebalanced for dark surfaces */
  .l3-paragraph:hover,
  .l2-paragraph:hover {
    background: #2a2620;  /* slightly lighter than column bg */
  }
  .l3-paragraph.active,
  .l2-paragraph.active {
    background: #3a3220;  /* warm accent-light analog */
    color: var(--text);
  }

  /* Browse-table row hover */
  .browse-table tr:hover { background: #2a2620; }

  /* Section nav hover/active */
  .section-nav a:hover { background: #2a2620; }
  .section-nav a.active { background: #3a3220; }

  /* Layer toggle button states */
  .layer-toggle.active {
    color: var(--text);
    background: #3a3220;
    border-color: var(--accent);
  }
  .layer-toggle:hover { background: #2a2620; }

  /* Column header band */
  .col-header {
    background: #2a2620;
    color: var(--text-muted);
  }

  /* Code blocks should also be subtly distinct from page bg */
  code { background: #2a2620; }
}


/* ---------------------------------------------------------------
   Sortable column headers (browse table)
   --------------------------------------------------------------- */
.browse-table th.sortable {
  cursor: pointer;
  user-select: none;
  position: relative;
  padding-right: 1.5rem;
}
.browse-table th.sortable:hover { color: var(--accent); }
.browse-table th.sortable .sort-arrow {
  display: inline-block;
  width: 0.8em;
  margin-left: 0.3em;
  color: var(--text-soft);
  font-size: 0.85em;
  opacity: 0.4;
}
.browse-table th.sortable.sort-asc .sort-arrow::after {
  content: "\25B2";  /* black up-pointing triangle */
  opacity: 1;
  color: var(--accent);
}
.browse-table th.sortable.sort-desc .sort-arrow::after {
  content: "\25BC";  /* black down-pointing triangle */
  opacity: 1;
  color: var(--accent);
}

/* Filter hint text */
.filter-controls .filter-hint {
  margin-left: 1rem;
  color: var(--text-soft);
  font-family: "Source Sans Pro", system-ui, sans-serif;
  font-size: 0.85rem;
  font-style: italic;
}


/* ---------------------------------------------------------------
   Lecture page prev/next navigation
   --------------------------------------------------------------- */
.lecture-title-row {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  margin: 0;
  flex-wrap: nowrap;
  max-width: 100%;
}
.lecture-title-row h1 {
  flex: 0 1 auto;
  margin: 0;
  min-width: 0;
}
.lec-nav {
  font-size: 2.2rem;
  font-weight: 300;
  line-height: 1;
  color: var(--text-muted);
  text-decoration: none;
  padding: 0 0.4rem;
  border-radius: 4px;
  user-select: none;
  transition: color 100ms, background 100ms;
}
.lec-nav:hover {
  color: var(--accent);
  background: var(--accent-soft);
}
.lec-nav-disabled {
  color: var(--text-soft);
  opacity: 0.3;
  cursor: default;
}