/* ══════════════════════════════════════════════════════════
   BiV Design System — Shared Stylesheet
   Source of truth: templates/guide.html
   ══════════════════════════════════════════════════════════ */

/* ── Font Faces ── */
@font-face { font-family: 'NHG Display'; src: url('/assets/brand-review/fonts/NeueHaasDisplayXXThin.ttf'); font-weight: 100; font-style: normal; }
@font-face { font-family: 'NHG Display'; src: url('/assets/brand-review/fonts/NeueHaasDisplayXXThinItalic.ttf'); font-weight: 100; font-style: italic; }
@font-face { font-family: 'NHG Display'; src: url('/assets/brand-review/fonts/NeueHaasDisplayXThin.ttf'); font-weight: 200; font-style: normal; }
@font-face { font-family: 'NHG Display'; src: url('/assets/brand-review/fonts/NeueHaasDisplayXThinItalic.ttf'); font-weight: 200; font-style: italic; }
@font-face { font-family: 'NHG Display'; src: url('/assets/brand-review/fonts/NeueHaasDisplayThin.ttf'); font-weight: 300; font-style: normal; }
@font-face { font-family: 'NHG Display'; src: url('/assets/brand-review/fonts/NeueHaasDisplayThinItalic.ttf'); font-weight: 300; font-style: italic; }
@font-face { font-family: 'NHG Display'; src: url('/assets/brand-review/fonts/NeueHaasDisplayLight.ttf'); font-weight: 350; font-style: normal; }
@font-face { font-family: 'NHG Display'; src: url('/assets/brand-review/fonts/NeueHaasDisplayLightItalic.ttf'); font-weight: 350; font-style: italic; }
@font-face { font-family: 'NHG Display'; src: url('/assets/brand-review/fonts/NeueHaasDisplayRoman.ttf'); font-weight: 400; font-style: normal; }
@font-face { font-family: 'NHG Display'; src: url('/assets/brand-review/fonts/NeueHaasDisplayRomanItalic.ttf'); font-weight: 400; font-style: italic; }
@font-face { font-family: 'NHG Display'; src: url('/assets/brand-review/fonts/NeueHaasDisplayMediu.ttf'); font-weight: 500; font-style: normal; }
@font-face { font-family: 'NHG Display'; src: url('/assets/brand-review/fonts/NeueHaasDisplayMediumItalic.ttf'); font-weight: 500; font-style: italic; }
@font-face { font-family: 'NHG Display'; src: url('/assets/brand-review/fonts/NeueHaasDisplayBold.ttf'); font-weight: 700; font-style: normal; }
@font-face { font-family: 'NHG Display'; src: url('/assets/brand-review/fonts/NeueHaasDisplayBoldItalic.ttf'); font-weight: 700; font-style: italic; }
@font-face { font-family: 'NHG Display'; src: url('/assets/brand-review/fonts/NeueHaasDisplayBlack.ttf'); font-weight: 900; font-style: normal; }
@font-face { font-family: 'NHG Display'; src: url('/assets/brand-review/fonts/NeueHaasDisplayBlackItalic.ttf'); font-weight: 900; font-style: italic; }

/* ── Reset & Variables ── */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --text: #111;
  --secondary: #6b6b74;
  --tertiary: #a0a0a8;
  --border: #e0e0e0;
  --border-light: #f0f0f0;
  --bg: #fff;
  --bg-hover: #fafafa;
  --accent: #f43f5e;
}

body {
  font-family: 'NHG Display', 'Helvetica Neue', Helvetica, sans-serif;
  background: var(--bg);
  color: var(--text);
  padding: 0 60px 16px;
  font-size: 15px;
  font-weight: 400;
  line-height: 1.6;
  letter-spacing: 0.3px;
}

/* ── Sticky Header ── */
.sticky-header {
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 100;
  margin: 0 -60px;
  padding: 0 60px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: flex-end;
  gap: 24px;
}
.sticky-header .wordmark { flex-shrink: 0; padding: 12px 0; }
.sticky-header .wordmark a { display: block; line-height: 0; cursor: pointer; }
.sticky-header .wordmark img { height: 28px; }
.sticky-nav { display: flex; gap: 0; flex-wrap: wrap; align-items: flex-end; padding: 0; }
.sticky-nav a {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0;
  color: var(--tertiary);
  text-decoration: none;
  padding: 14px 12px 12px;
  transition: all .15s;
  border-bottom: 2px solid transparent;
}
.sticky-nav a:hover { color: var(--text); border-bottom-color: var(--text); }

/* ── Page Header ── */
.page-header { padding-top: 48px; margin-bottom: 32px; }
h1 { font-size: 34px; font-weight: 900; letter-spacing: -0.25px; line-height: 1.1; margin-bottom: 8px; }
h2 { letter-spacing: -0.3px; }
.subtitle { font-size: 14px; font-weight: 400; color: var(--secondary); }

/* ── Sections (details/summary) ── */
.section { margin-bottom: 32px; scroll-margin-top: 100px; }
details[open].section { margin-bottom: 72px; }
.section > summary {
  font-size: 22px;
  font-weight: 900;
  letter-spacing: -0.3px;
  border-bottom: 2px solid var(--text);
  padding-bottom: 8px;
  margin-bottom: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  list-style: none;
  cursor: pointer;
}
.section > summary::-webkit-details-marker { display: none; }
.toggle {
  display: inline-block;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 5px 0 5px 8px;
  border-color: transparent transparent transparent var(--secondary);
  transition: transform 0.2s;
  flex-shrink: 0;
}
details:not([open]) .toggle { transform: rotate(0deg); }
details[open] .toggle { transform: rotate(90deg); }
.section[open] > summary { margin-bottom: 24px; }

/* ── Subsection Labels ── */
.subsection-label {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0;
  color: var(--secondary);
  margin: 32px 0 16px;
}
.note {
  font-size: 14px;
  font-weight: 400;
  color: var(--secondary);
  margin-bottom: 16px;
  line-height: 1.6;
  max-width: 72ch;
}

/* ── TOC ── */
.toc { border: 1px solid var(--border); padding: 24px 28px; margin-bottom: 48px; }
.toc .toc-label { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; color: var(--secondary); margin-bottom: 12px; }
.toc a { display: block; font-size: 14px; color: var(--text); text-decoration: none; padding: 4px 0; }
.toc a:hover { color: var(--accent); }
.toc a.toc-indent { padding-left: 16px; color: var(--secondary); }

/* ── Global Em-Dash Bullets ── */
ul:not([class]) { list-style: none; padding-left: 1.5em; }
ul:not([class]) li { position: relative; }
ul:not([class]) li::before { content: "\2014"; position: absolute; left: -1.5em; color: var(--secondary); }

/* ── Links ── */
a.styled-link {
  color: var(--accent);
  font-weight: inherit;
  text-decoration: none;
  border-bottom: 1px solid rgba(244, 63, 94, 0.4);
  transition: border-color .15s;
}
a.styled-link:hover { border-bottom-color: var(--accent); }

/* ── Stat Cards ── */
.stat-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card {
  border: 1px solid var(--border);
  padding: 24px;
}
.stat-card .stat-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--secondary);
  margin-bottom: 4px;
}
.stat-card .stat-value {
  font-size: 44px;
  font-weight: 900;
  letter-spacing: -0.5px;
  font-feature-settings: 'tnum' 1;
  line-height: 1.1;
}

/* ── Tags ── */
.tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 4px 10px;
  border: 1px solid var(--border);
  margin: 0 6px 6px 0;
}
.tag.accent { border-color: var(--accent); color: var(--accent); }
.tag.active { border-color: var(--text); color: var(--text); }
.tag.clickable { cursor: pointer; transition: all .15s; }
.tag.clickable:hover { border-color: var(--accent); color: var(--accent); }

/* ── Callout ── */
.callout {
  border-left: 3px solid var(--accent);
  padding: 16px 20px;
  background: var(--bg-hover);
  margin-bottom: 16px;
  font-size: 14px;
  line-height: 1.6;
  max-width: 72ch;
}

/* ── Progress Bars ── */
.progress-bar-wrap { margin-bottom: 16px; }
.progress-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--secondary);
  margin-bottom: 6px;
}
.progress-track {
  height: 6px;
  background: var(--border-light);
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  background: var(--accent);
}

/* ── Tables ── */
table { width: 100%; border-collapse: collapse; margin-bottom: 24px; }
th {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  text-align: left;
  padding: 8px 16px 8px 0;
  border-bottom: 2px solid var(--text);
  color: var(--secondary);
}
th.sortable { cursor: pointer; user-select: none; }
th.sortable:hover { color: var(--text); }
th.sortable::after { content: ''; display: inline-block; width: 0; height: 0; margin-left: 6px; vertical-align: middle; }
th.sort-asc::after { border-left: 4px solid transparent; border-right: 4px solid transparent; border-bottom: 4px solid currentColor; }
th.sort-desc::after { border-left: 4px solid transparent; border-right: 4px solid transparent; border-top: 4px solid currentColor; }
td {
  font-size: 14px;
  padding: 16px 16px 16px 0;
  border-bottom: 1px solid var(--border-light);
  vertical-align: top;
}

/* ── Comparison Containers ── */
.compare-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-bottom: 24px;
}
.compare-panel {
  border: 1px solid var(--border);
  padding: 32px;
}
.compare-panel-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--tertiary);
  margin-bottom: 20px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-light);
}
.compare-5col {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  margin-bottom: 24px;
}
.compare-5col .compare-panel { padding: 20px; }
.compare-3col {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 24px;
}

/* ── Bullet Variants ── */
.bullet-disc { list-style-type: disc; padding-left: 20px; }
.bullet-disc li { margin-bottom: 6px; font-size: 14px; line-height: 1.6; }

.bullet-endash { list-style-type: "\2013\0020"; padding-left: 20px; }
.bullet-endash li { margin-bottom: 6px; font-size: 14px; line-height: 1.6; }

.bullet-emdash { list-style: none; padding-left: 20px; }
.bullet-emdash li { margin-bottom: 6px; font-size: 14px; line-height: 1.6; position: relative; }
.bullet-emdash li::before { content: "\2014"; position: absolute; left: -20px; color: var(--secondary); }

.bullet-middot { list-style: none; padding-left: 16px; }
.bullet-middot li { margin-bottom: 6px; font-size: 14px; line-height: 1.6; position: relative; }
.bullet-middot li::before { content: "\00B7"; position: absolute; left: -12px; color: var(--secondary); font-weight: 900; }

.bullet-none { list-style: none; padding-left: 20px; }
.bullet-none li { margin-bottom: 6px; font-size: 14px; line-height: 1.6; }

/* ── Status Variants ── */
.status-text { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; }
.status-placed { color: #16a34a; }
.status-pending { color: #ca8a04; }
.status-declined { color: #dc2626; }

.status-dot {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
}
.status-dot::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}
.status-dot.dot-placed::before { background: #16a34a; }
.status-dot.dot-pending::before { background: #ca8a04; }
.status-dot.dot-declined::before { background: #dc2626; }

.status-weight-active { font-weight: 700; color: var(--text); }
.status-weight-pending { font-weight: 400; color: var(--text); }
.status-weight-declined { font-weight: 300; color: var(--text); text-decoration: line-through; }

/* ── Dark Mode ── */
[data-theme="dark"] {
  --text: #E5E5E5;
  --secondary: #8b949e;
  --tertiary: #6b7280;
  --border: #2d333b;
  --border-light: #21262d;
  --bg: #121212;
  --bg-hover: #1C1C1E;
}
[data-theme="dark"] body { background: #121212; color: rgba(255,255,255,0.87); }
[data-theme="dark"] .sticky-header { background: #121212; border-bottom-color: #2d333b; }
[data-theme="dark"] .page-footer { background: #121212; border-top-color: #2d333b; }
[data-theme="dark"] .toc { border-color: #2d333b; }
[data-theme="dark"] .stat-card { border-color: #2d333b; background: #1C1C1E; }
[data-theme="dark"] table th { border-bottom-color: rgba(255,255,255,0.3); color: #8b949e; }
[data-theme="dark"] table td { border-bottom-color: #2d333b; }
[data-theme="dark"] .callout { background: #1C1C1E; border-left-color: rgba(255,255,255,0.3); }
[data-theme="dark"] .tag { border-color: #444; color: rgba(255,255,255,0.87); }
[data-theme="dark"] .tag.active { color: #fff; }
[data-theme="dark"] .tag.clickable:hover { border-color: var(--accent); color: var(--accent); }
[data-theme="dark"] .compare-panel { border-color: #2d333b; }
[data-theme="dark"] .progress-track { background: #2d333b; }
[data-theme="dark"] .toggle { border-left-color: #8b949e; }
[data-theme="dark"] summary { color: rgba(255,255,255,0.87); border-bottom-color: rgba(255,255,255,0.3); }
[data-theme="dark"] .subsection-label { color: #8b949e; }
[data-theme="dark"] .footer-brand { opacity: 0.5; }
[data-theme="dark"] .footer-brand .footer-wordmark-text { filter: invert(1); }

/* ── Footer ── */
.page-footer {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 16px 60px;
  border-top: 1px solid var(--border);
  margin: 48px -60px 0;
}
.footer-meta {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0;
  color: var(--tertiary);
}
.footer-controls {
  display: flex;
  gap: 8px;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  text-decoration: none;
  opacity: 0.4;
  transition: opacity .2s;
  line-height: 0;
  margin-left: auto;
}
.footer-btn {
  font-family: inherit;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0;
  padding: 4px 12px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--tertiary);
  cursor: pointer;
  transition: all .15s;
}
.footer-btn:hover {
  color: var(--text);
  border-color: var(--text);
}
.footer-brand:hover { opacity: 0.65; }
.footer-brand .footer-wordmark-text {
  height: 28px;
  width: auto;
}
.footer-brand .footer-brain-gif {
  height: 28px;
  width: 28px;
  object-fit: contain;
}

/* ── Mini Table ── */
.mini-table { width: 100%; border-collapse: collapse; margin-bottom: 16px; }
.mini-table th {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  text-align: left;
  padding: 6px 12px 6px 0;
  border-bottom: 2px solid var(--text);
  color: var(--secondary);
}
.mini-table td {
  font-size: 14px;
  padding: 10px 12px 10px 0;
  border-bottom: 1px solid var(--border-light);
}

/* ── Responsive ── */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
@media (max-width: 768px) {
  body { padding: 0 20px 16px; }
  .sticky-header { padding: 0 16px; margin: 0 -20px; flex-wrap: wrap; gap: 0; }
  .sticky-header .wordmark { width: 100%; padding: 8px 0 4px; }
  .sticky-nav { width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; flex-wrap: nowrap; padding-bottom: 8px; margin-left: -16px; padding-left: 16px; }
  .sticky-nav a { white-space: nowrap; padding: 8px 10px 6px; font-size: 10px; }
  .sticky-nav a:first-child { padding-left: 0; }
  .page-footer { padding: 12px 20px; margin: 48px -20px 0; }
  .stat-cards { grid-template-columns: 1fr 1fr; }
  .table-wrap table { white-space: nowrap; }
  .table-wrap table th { white-space: nowrap; }
}
@media print {
  .sticky-header, .sticky-nav { position: static; }
  .page-footer { position: static; }
  table { width: 100%; white-space: normal; }
  details { display: block; }
  details > summary { pointer-events: none; }
  details > summary .toggle { display: none; }
  .footer-controls { display: none; }
}