/* Russian-Origin Tech — dossier / terminal. Dark default, system fonts, < 5KB target */

/* ── Dark default (Option A) ── */
:root {
  --bg: #0a0a0a;
  --text: #d4d4d4;
  --text-bright: #f0f0f0;
  --text-muted: #a3a3a3;
  --accent: #3b82f6;
  --accent-hover: #60a5fa;
  --surface: #141414;
  --border: #262626;
  --table-stripe: #0f0f0f;
  --tag-bg: #1e1e1e;
  --tag-text: #bbb;
  --confidence-high: #4ade80;
  --confidence-med: #facc15;
  --confidence-low: #737373;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #ffffff;
    --text: #171717;
    --text-bright: #0a0a0a;
    --text-muted: #525252;
    --accent: #1d4ed8;
    --accent-hover: #2563eb;
    --surface: #f8f8f8;
    --border: #e5e5e5;
    --table-stripe: #fafafa;
    --tag-bg: #eee;
    --tag-text: #444;
    --confidence-high: #16a34a;
    --confidence-med: #ca8a04;
    --confidence-low: #737373;
  }
}

* { box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  margin: 0;
  padding: 0 1rem 2rem;
}
a { color: var(--accent); text-decoration: underline; }
a:hover { color: var(--accent-hover); }
h1 {
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.2;
  color: var(--text-bright);
  margin: 0 0 0.5rem;
}
h2 {
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 1.5rem 0 0.5rem;
  color: var(--text-bright);
}
h3 { font-size: 1.1rem; font-weight: 600; margin: 1.25rem 0 0.5rem; }
p { margin: 0 0 1rem; }
hr { border: none; border-top: 1px solid var(--border); margin: 2rem 0; }

code, .mono, .company-meta dd {
  font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', 'Consolas', monospace;
  font-size: 0.85em;
}

/* ── Layout ── */
main { max-width: 680px; margin: 0 auto; }
main.wide { max-width: 960px; }
main.home { max-width: 640px; }

/* ── Nav: toolbar, left=site name, right=links ── */
nav {
  max-width: 960px;
  margin: 0 auto;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  align-items: center;
}
nav a { color: var(--text); text-decoration: none; }
nav a:hover { color: var(--text-bright); text-decoration: underline; }
.nav-brand { font-weight: 600; color: var(--text-bright); }
.nav-brand:hover { color: var(--text-bright); text-decoration: none; }
.nav-links { display: flex; flex-wrap: wrap; gap: 0 1.25rem; }

/* ── Breadcrumbs ── */
.breadcrumbs { font-size: 0.8125rem; color: var(--text-muted); margin-bottom: 0.5rem; }
.breadcrumbs a { color: var(--text-muted); }
.breadcrumbs a:hover { color: var(--accent); }

/* ── Homepage: hero, report label, stats dashboard, CTA ── */
main.home {
  padding-top: min(12rem, 38vh);
  padding-bottom: 3rem;
}
.report-label {
  font-size: 0.6875rem;
  font-variant: small-caps;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}
.home-title {
  font-size: clamp(2.5rem, 5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--text-bright);
  margin: 0 0 0.75rem;
}
.home-subtitle {
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--text-muted);
  margin: 0 0 2.5rem;
  max-width: 32em;
}
.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(8rem, 1fr));
  gap: 1.5rem 2rem;
  margin-bottom: 2.5rem;
  padding: 1.25rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.stats-item { text-align: left; }
.stats-num {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-bright);
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
}
.stats-label { font-size: 0.8125rem; color: var(--text-muted); margin-top: 0.15rem; }
.cta-block { margin-top: 2rem; }
.cta-primary {
  display: inline-block;
  font-weight: 600;
  font-size: 1rem;
  padding: 0.5rem 0;
  border-bottom: 2px solid var(--accent);
}
.cta-primary:hover { color: var(--accent-hover); border-bottom-color: var(--accent-hover); }
.cta-secondary { font-size: 0.9375rem; color: var(--text-muted); margin-top: 0.75rem; }
.cta-secondary a { color: var(--text-muted); }
.cta-secondary a:hover { color: var(--accent); }

/* ── Company profile: meta card, sections, evidence ── */
.company-meta {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.35rem 1.5rem;
  margin: 0 0 1.5rem;
  padding: 1.25rem 1.25rem 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 2px;
  font-size: 0.9375rem;
}
.company-meta dt { color: var(--text-muted); margin: 0; }
.company-meta dd { margin: 0; }
.company-notes {
  margin-bottom: 2rem;
  padding-top: 0.5rem;
}
.company-notes h2 { margin-top: 0; }
.company-evidence {
  margin-bottom: 2rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--border);
}
.company-evidence ul { list-style: none; padding: 0; margin: 0.5rem 0 0; }
.company-evidence li { margin-bottom: 0.35rem; }
.company-evidence a {
  font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', 'Consolas', monospace;
  font-size: 0.85em;
  word-break: break-all;
}
.company-verified { font-size: 0.8125rem; color: var(--text-muted); margin-top: 2rem; }
.confidence-high { color: var(--confidence-high); }
.confidence-med { color: var(--confidence-med); }
.confidence-low { color: var(--confidence-low); }
.confidence-dot { display: inline-block; width: 0.4em; height: 0.4em; border-radius: 50%; margin-right: 0.35em; vertical-align: 0.15em; }
.confidence-high .confidence-dot { background: var(--confidence-high); }
.confidence-med .confidence-dot { background: var(--confidence-med); }
.confidence-low .confidence-dot { background: var(--confidence-low); }

/* ── Company index table: terminal / Bloomberg feel ── */
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.companies-filters { min-height: 2.5rem; margin-bottom: 1rem; }
.companies-search-row { display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.75rem; }
.companies-search-input { flex: 1; min-width: 0; padding: 0.5rem 0.75rem; font-size: 1rem; border: 1px solid var(--border); border-radius: 4px; background: var(--surface); color: var(--text); }
.companies-search-input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent); }
.companies-search-clear { padding: 0.5rem 0.75rem; font-size: 1.25rem; line-height: 1; border: 1px solid var(--border); border-radius: 4px; background: var(--surface); color: var(--text-muted); cursor: pointer; }
.companies-search-clear:hover, .companies-search-clear:focus-visible { color: var(--text); border-color: var(--accent); }
.companies-search-clear:focus-visible { outline: none; box-shadow: 0 0 0 2px var(--accent); }
.companies-filters-details { margin-bottom: 0.75rem; }
.companies-filters-summary { cursor: pointer; font-weight: 500; padding: 0.25rem 0; }
.companies-filters-summary:hover { color: var(--accent); }
.companies-filters-summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.companies-filters-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 0.75rem 1rem; margin-top: 0.5rem; }
.companies-filter-group label { display: block; font-size: 0.875rem; color: var(--text-muted); margin-bottom: 0.25rem; }
.companies-filter-group select { width: 100%; padding: 0.4rem 0.5rem; font-size: 0.9rem; border: 1px solid var(--border); border-radius: 4px; background: var(--surface); color: var(--text); }
.companies-filter-group select:focus { outline: none; border-color: var(--accent); }
.companies-filters-bar { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem 1rem; font-size: 0.9rem; color: var(--text-muted); }
.companies-clear-filters { padding: 0.25rem 0.5rem; font-size: 0.875rem; border: 1px solid var(--border); border-radius: 4px; background: var(--surface); color: var(--accent); cursor: pointer; }
.companies-clear-filters:hover, .companies-clear-filters:focus-visible { border-color: var(--accent); }
.companies-clear-filters:focus-visible { outline: none; box-shadow: 0 0 0 2px var(--accent); }
.companies-result-count { margin: 0; }
.companies-empty { margin-top: 1rem; color: var(--text-muted); }
.companies-table-wrap { overflow-x: auto; margin-bottom: 2rem; -webkit-overflow-scrolling: touch; }
.companies-table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  font-size: 0.9375rem;
}
.companies-table th,
.companies-table td { padding: 0.5rem 0.75rem; text-align: left; border-bottom: 1px solid var(--border); }
.companies-table th { font-weight: 600; color: var(--text-muted); }
.companies-table th:hover { color: var(--accent); }
.companies-table th[data-sort]:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.companies-table th[data-sort]::after { content: ''; display: inline-block; margin-left: 0.35em; font-size: 0.75em; opacity: 0.5; }
.companies-table th[aria-sort="ascending"]::after { content: '\25B2'; }
.companies-table th[aria-sort="descending"]::after { content: '\25BC'; }
.companies-table tbody tr { transition: background 0.12s ease; }
.companies-table tbody tr:nth-child(even) { background: var(--table-stripe); }
.companies-table tbody tr:hover { background: var(--surface); }
.companies-table tbody tr[hidden] { display: none; }
.companies-table .col-founded { font-variant-numeric: tabular-nums; font-feature-settings: "tnum"; }
.companies-table th:first-child, .companies-table td:first-child { position: sticky; left: 0; z-index: 1; }
.companies-table thead th:first-child { background: var(--bg); }
.companies-table tbody tr td:first-child { background: var(--bg); }
.companies-table tbody tr:nth-child(even) td:first-child { background: var(--table-stripe); }
.companies-table tbody tr:hover td:first-child { background: var(--surface); }
@media (prefers-color-scheme: light) {
  .companies-table th:first-child, .companies-table td:first-child { box-shadow: 2px 0 4px -2px rgba(0,0,0,0.06); }
}
@media (prefers-color-scheme: dark) {
  .companies-table th:first-child, .companies-table td:first-child { box-shadow: 2px 0 6px -2px rgba(0,0,0,0.25); }
}
.companies-table .confidence-high { color: var(--confidence-high); }
.companies-table .confidence-med { color: var(--confidence-med); }
.companies-table .confidence-low { color: var(--confidence-low); }
@media (max-width: 768px) { .companies-filters-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 680px) {
  .companies-table { font-size: 0.875rem; }
  .companies-table th, .companies-table td { padding: 0.4rem 0.5rem; }
}

/* ── Category pages ── */
.category-count { font-size: 1rem; color: var(--text-muted); font-weight: 400; margin: 0 0 1.5rem; }
.categories-list, .category-companies { list-style: none; padding: 0; margin: 0 0 2rem; }
.categories-list li, .category-companies li { margin-bottom: 0.5rem; }

/* ── Pattern essays ── */
.callout, blockquote.callout {
  margin: 1.5rem 0;
  padding-left: 1rem;
  border-left: 3px solid var(--accent);
  color: var(--text);
  background: transparent;
}

/* ── Footer: useful one-liner ── */
footer {
  max-width: 960px;
  margin: 2rem auto 0;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  font-size: 0.8125rem;
  color: var(--text-muted);
}
footer p { margin: 0; }
footer a { color: var(--text-muted); }
footer a:hover { color: var(--accent); }

/* ── Tags ── */
.tag { display: inline-block; padding: 0.15rem 0.5rem; font-size: 0.8rem; background: var(--tag-bg); color: var(--tag-text); border-radius: 2px; margin-right: 0.25rem; margin-bottom: 0.25rem; }

/* ── Map visualization ── */
main.map-page { max-width: none; padding: 0 1rem; }
.map-wrapper { position: relative; }
#map-container {
  position: relative;
  width: 100%;
  height: calc(100vh - 14rem);
  min-height: 420px;
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
  background: var(--bg);
}
#map-container svg { display: block; }
.map-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}
.map-legend-item { display: flex; align-items: center; gap: 0.3rem; }
.map-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  align-items: center;
  margin-bottom: 0.75rem;
  font-size: 0.875rem;
}
.map-controls label {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  cursor: pointer;
  color: var(--text);
  white-space: nowrap;
}
.map-controls select {
  padding: 0.3rem 0.5rem;
  font-size: 0.875rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--surface);
  color: var(--text);
}
.map-controls select:focus { outline: none; border-color: var(--accent); }
.map-controls-gap { font-weight: 600; color: var(--text-bright); }
.map-stats {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  z-index: 10;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 0.8125rem;
  min-width: 190px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.25);
}
.map-stats-toggle {
  display: block;
  width: 100%;
  padding: 0.5rem 0.75rem;
  text-align: left;
  background: none;
  border: none;
  color: var(--text-bright);
  font-weight: 600;
  cursor: pointer;
  font-size: 0.8125rem;
  font-family: inherit;
}
.map-stats-toggle:hover { color: var(--accent); }
.map-stats-body { padding: 0 0.75rem 0.75rem; }
.stat-row {
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.2rem 0;
  color: var(--text);
}
.stat-label { color: var(--text-muted); }
.map-tooltip {
  position: absolute;
  z-index: 20;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.5rem 0.75rem;
  font-size: 0.8125rem;
  color: var(--text);
  pointer-events: none;
  max-width: 280px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.35);
  display: none;
  line-height: 1.5;
}
.map-tooltip strong { color: var(--text-bright); }
.map-tooltip .tt-label { color: var(--text-muted); }
.map-tooltip .tt-gap { color: #ef6c00; font-weight: 600; }
@media (max-width: 640px) {
  #map-container { height: calc(100vh - 18rem); min-height: 320px; }
  .map-controls { gap: 0.35rem 0.75rem; font-size: 0.8125rem; }
  .map-stats { min-width: 160px; font-size: 0.75rem; }
}