/* VERIDEX — design tokens
   Brand-aligned: glass-on-atmosphere, oklch system, accent gradient.
   Powered by Yggdrasil graph engine. */

:root[data-theme="dark"] {
  --bg:           oklch(0.18 0.006 240);
  --bg-deep:      oklch(0.14 0.006 240);
  --bg-paper:     oklch(0.22 0.008 240);
  --surface:      oklch(0.24 0.008 240 / 0.55);
  --surface-solid:oklch(0.22 0.008 240);
  --surface-2:    oklch(0.28 0.008 240 / 0.7);
  --hairline:     oklch(0.32 0.008 240 / 0.6);
  --hairline-strong: oklch(0.40 0.008 240 / 0.8);

  --text:         oklch(0.94 0.005 240);
  --text-muted:   oklch(0.70 0.008 240);
  --text-faint:   oklch(0.55 0.008 240);
  --text-dim:     oklch(0.45 0.008 240);

  /* Accent — forest green per brand guide */
  --accent:       oklch(0.70 0.12 155);
  --accent-deep:  oklch(0.62 0.12 160);
  --accent-text:  oklch(0.78 0.12 155);
  --accent-soft:  oklch(0.70 0.12 155 / 0.16);
  --accent-line:  oklch(0.70 0.12 155 / 0.40);
  --accent-grad-a:oklch(0.70 0.12 155);
  --accent-grad-b:oklch(0.55 0.12 220);

  /* Trust tiers */
  --tier-1:       oklch(0.72 0.14 150);
  --tier-2:       oklch(0.70 0.13 240);
  --tier-3:       oklch(0.78 0.14 75);

  /* Confidence bands */
  --conf-high:    oklch(0.72 0.14 150);
  --conf-mid:     oklch(0.78 0.14 75);
  --conf-low:     oklch(0.70 0.18 25);

  /* Edge types in graph */
  --edge-interest:    oklch(0.72 0.14 150);
  --edge-procurement: oklch(0.70 0.13 240);
  --edge-vote:        oklch(0.78 0.14 75);
  --edge-funding:     oklch(0.70 0.16 320);
  --edge-mention:     oklch(0.55 0.008 240);

  --grid-line:    oklch(0.24 0.007 240);

  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.3);
  --shadow-md: 0 4px 16px oklch(0 0 0 / 0.35), 0 1px 3px oklch(0 0 0 / 0.2);
  --shadow-lg: 0 12px 40px oklch(0 0 0 / 0.45), 0 2px 8px oklch(0 0 0 / 0.3);
  --glass-blur: saturate(140%) blur(20px);
}

:root[data-theme="light"] {
  --bg:           oklch(0.97 0.005 80);
  --bg-deep:      oklch(0.95 0.006 80);
  --bg-paper:     oklch(0.99 0.004 80);
  --surface:      oklch(1 0 0 / 0.65);
  --surface-solid:oklch(0.99 0.004 80);
  --surface-2:    oklch(1 0 0 / 0.85);
  --hairline:     oklch(0.85 0.005 80 / 0.6);
  --hairline-strong: oklch(0.78 0.006 80 / 0.8);

  --text:         oklch(0.22 0.005 80);
  --text-muted:   oklch(0.48 0.006 80);
  --text-faint:   oklch(0.62 0.006 80);
  --text-dim:     oklch(0.72 0.006 80);

  --accent:       oklch(0.55 0.10 155);
  --accent-deep:  oklch(0.46 0.10 160);
  --accent-text:  oklch(0.42 0.10 155);
  --accent-soft:  oklch(0.55 0.10 155 / 0.12);
  --accent-line:  oklch(0.55 0.10 155 / 0.45);
  --accent-grad-a:oklch(0.55 0.10 155);
  --accent-grad-b:oklch(0.45 0.10 220);

  --tier-1:       oklch(0.50 0.13 150);
  --tier-2:       oklch(0.50 0.13 240);
  --tier-3:       oklch(0.55 0.14 65);

  --conf-high:    oklch(0.50 0.13 150);
  --conf-mid:     oklch(0.55 0.14 65);
  --conf-low:     oklch(0.50 0.16 30);

  --edge-interest:    oklch(0.50 0.13 150);
  --edge-procurement: oklch(0.50 0.13 240);
  --edge-vote:        oklch(0.55 0.14 65);
  --edge-funding:     oklch(0.50 0.16 320);
  --edge-mention:     oklch(0.65 0.007 240);

  --grid-line:    oklch(0.92 0.004 80);

  --shadow-sm: 0 1px 2px oklch(0.2 0.01 80 / 0.04);
  --shadow-md: 0 4px 16px oklch(0.2 0.01 80 / 0.06), 0 1px 3px oklch(0.2 0.01 80 / 0.04);
  --shadow-lg: 0 12px 40px oklch(0.2 0.01 80 / 0.08), 0 2px 8px oklch(0.2 0.01 80 / 0.05);
  --glass-blur: saturate(140%) blur(20px);
}

:root { color-scheme: dark; }
:root[data-theme="dark"] { color-scheme: dark; }
:root[data-theme="light"] { color-scheme: light; }

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: 'cv11', 'ss01', 'ss03';
  min-height: 100vh;
}

/* Atmosphere — gradient mesh + grain */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}
:root[data-theme="dark"] body::before {
  background:
    radial-gradient(ellipse 60% 50% at 15% 20%, oklch(0.55 0.13 155 / 0.18), transparent 60%),
    radial-gradient(ellipse 50% 40% at 85% 70%, oklch(0.50 0.12 220 / 0.14), transparent 60%),
    radial-gradient(ellipse 40% 60% at 50% 100%, oklch(0.55 0.13 155 / 0.10), transparent 70%);
}
:root[data-theme="light"] body::before {
  background:
    radial-gradient(ellipse 60% 50% at 15% 20%, oklch(0.55 0.10 155 / 0.08), transparent 60%),
    radial-gradient(ellipse 50% 40% at 85% 70%, oklch(0.60 0.08 220 / 0.06), transparent 60%),
    radial-gradient(ellipse 40% 60% at 50% 100%, oklch(0.55 0.10 155 / 0.04), transparent 70%);
}
body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.25;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' /%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.4'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
}
:root[data-theme="light"] body::after { opacity: 0.4; }

.shell, .topbar, .status-strip, .page, .foot { position: relative; z-index: 1; }

::selection { background: var(--accent-soft); color: var(--text); }

.mono {
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  font-feature-settings: 'tnum';
  font-variant-numeric: tabular-nums;
}

.eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-faint);
  font-weight: 500;
}

.serial {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--text-dim);
}

a { color: inherit; text-decoration: none; }

/* ============== SHELL ============== */
.shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--surface);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--hairline);
}
.topbar-inner {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 32px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 32px;
  align-items: center;
  height: 64px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
/* Brand mark — VERIDEX W chevron (inline SVG via CSS background) */
.brand-mark {
  width: 32px; height: 24px;
  flex-shrink: 0;
  background: url("veridex-mark.svg") center/contain no-repeat;
}
.brand-mark svg { display: none; }
.brand-mark::before { content: ''; }
/* Yggdrasil engine glyph — used inline next to "Powered by" tagline */
.engine-mark {
  width: 14px; height: 14px;
  display: inline-block;
  vertical-align: -2px;
  color: var(--accent);
  background: url("yggdrasil-mark.svg") center/contain no-repeat;
  margin-right: 4px;
}
.brand-name {
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--text);
}
.brand-name .nx { color: var(--accent-text); }
.brand-tagline {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.10em;
  color: var(--text-faint);
  margin-left: 10px;
  padding-left: 10px;
  border-left: 1px solid var(--hairline);
  text-transform: uppercase;
}

.nav {
  display: flex;
  gap: 2px;
  justify-self: center;
}
.nav a {
  padding: 8px 14px;
  font-size: 13px;
  color: var(--text-muted);
  border-radius: 6px;
  transition: color 120ms, background 120ms;
  position: relative;
}
.nav a:hover { color: var(--text); }
.nav a.active { color: var(--text); }
.nav a.active::after {
  content: '';
  position: absolute;
  left: 14px; right: 14px; bottom: 2px;
  height: 1px;
  background: var(--accent);
}

.top-actions {
  display: flex;
  gap: 6px;
  align-items: center;
}
.lang-toggle {
  display: flex;
  border: 1px solid var(--hairline);
  border-radius: 6px;
  overflow: hidden;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
}
.lang-toggle button {
  background: transparent;
  border: none;
  color: var(--text-faint);
  padding: 5px 9px;
  cursor: pointer;
  font: inherit;
}
.lang-toggle button.on { background: var(--surface-2); color: var(--text); }

.theme-btn {
  width: 32px; height: 32px;
  border: 1px solid var(--hairline);
  background: transparent;
  border-radius: 6px;
  color: var(--text-muted);
  cursor: pointer;
  display: grid; place-items: center;
}
.theme-btn:hover { color: var(--text); border-color: var(--hairline-strong); }

.tweaks-btn {
  border: 1px solid var(--hairline);
  background: transparent;
  border-radius: 6px;
  color: var(--text-muted);
  cursor: pointer;
  font: inherit;
  font-size: 12px;
  padding: 6px 10px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.tweaks-btn:hover { color: var(--text); border-color: var(--hairline-strong); }

/* ============== STATUS STRIP ============== */
.status-strip {
  border-bottom: 1px solid var(--hairline);
  background: var(--surface);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--text-dim);
  letter-spacing: 0.04em;
}
.status-strip-inner {
  max-width: 1320px;
  margin: 0 auto;
  padding: 6px 32px;
  display: flex;
  gap: 24px;
  align-items: center;
  overflow-x: auto;
  white-space: nowrap;
}
.status-strip .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--tier-1);
  display: inline-block;
  margin-right: 6px;
  box-shadow: 0 0 6px var(--tier-1);
}
.status-strip .sep { color: var(--hairline-strong); }
.status-strip strong { color: var(--text-muted); font-weight: 500; }

/* ============== CONTENT ============== */
.page {
  max-width: 1320px;
  margin: 0 auto;
  width: 100%;
  padding: 0 32px;
  flex: 1;
}
.section {
  padding: 80px 0;
  border-bottom: 1px solid var(--hairline);
}
.section:last-of-type { border-bottom: none; }
.section-head {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.section-head .meta {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-faint);
  padding-top: 8px;
  border-top: 1px solid var(--hairline);
}
.section-head .title {
  font-family: 'Inter', sans-serif;
  font-size: 32px;
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.1;
  color: var(--text);
  padding-top: 8px;
  border-top: 1px solid var(--hairline);
}
.section-head .title .lede {
  display: block;
  margin-top: 16px;
  font-size: 16px;
  color: var(--text-muted);
  font-weight: 400;
  letter-spacing: 0;
  max-width: 56ch;
  line-height: 1.5;
}

/* ============== BUTTONS ============== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border-radius: 7px;
  font-size: 13px;
  font-weight: 500;
  font-family: inherit;
  border: 1px solid var(--hairline-strong);
  background: var(--surface-2);
  color: var(--text);
  cursor: pointer;
  transition: background 120ms, border-color 120ms;
}
.btn:hover { background: var(--bg-deep); }
.btn.primary {
  background: var(--accent);
  color: oklch(0.18 0.02 155);
  border-color: transparent;
  font-weight: 500;
  box-shadow: var(--shadow-sm), inset 0 1px 0 oklch(1 0 0 / 0.15);
}
.btn.primary:hover { background: var(--accent-deep); }
.btn.ghost { border-color: transparent; color: var(--text-muted); background: transparent; }
.btn.ghost:hover { color: var(--text); }
.btn .ico { width: 14px; height: 14px; }

.kbd {
  display: inline-block;
  padding: 1px 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  border: 1px solid var(--hairline);
  border-radius: 4px;
  color: var(--text-faint);
  background: var(--bg-deep);
}

/* ============== TAGS / BADGES ============== */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 2px 8px;
  border-radius: 4px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  background: var(--surface);
  color: var(--text-muted);
  border: 1px solid var(--hairline);
}
.tag .swatch { width: 6px; height: 6px; border-radius: 1px; background: currentColor; }

.tag.tier-1 { color: var(--tier-1); border-color: oklch(from var(--tier-1) l c h / 0.4); }
.tag.tier-2 { color: var(--tier-2); border-color: oklch(from var(--tier-2) l c h / 0.4); }
.tag.tier-3 { color: var(--tier-3); border-color: oklch(from var(--tier-3) l c h / 0.4); }

/* ============== SOURCE BADGE ============== */
.source-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px;
  color: var(--text-faint);
  letter-spacing: 0.04em;
}
.source-badge .tier-mark {
  width: 14px; height: 14px;
  display: grid;
  place-items: center;
  border-radius: 3px;
  font-size: 9px;
  font-weight: 600;
  color: var(--bg);
}
.source-badge .tier-mark.t1 { background: var(--tier-1); }
.source-badge .tier-mark.t2 { background: var(--tier-2); }
.source-badge .tier-mark.t3 { background: var(--tier-3); }

/* ============== CONFIDENCE BAND ============== */
.confidence {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px;
  color: var(--text-faint);
  letter-spacing: 0.04em;
}
.confidence-bar {
  display: inline-flex;
  gap: 2px;
}
.confidence-bar i {
  width: 4px; height: 11px;
  background: var(--hairline);
  border-radius: 1px;
}
.confidence[data-level="high"] i:nth-child(-n+5) { background: var(--conf-high); }
.confidence[data-level="mid"] i:nth-child(-n+3)  { background: var(--conf-mid); }
.confidence[data-level="low"] i:nth-child(-n+2)  { background: var(--conf-low); }

/* ============== SEARCH ============== */
.search {
  position: relative;
  border: 1px solid var(--hairline-strong);
  border-radius: 10px;
  background: var(--surface);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  display: flex;
  align-items: center;
  transition: border-color 160ms;
}
.search:focus-within { border-color: var(--accent); }
.search input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text);
  font-family: inherit;
  font-size: 16px;
  padding: 18px 18px 18px 48px;
}
.search input::placeholder { color: var(--text-faint); }
.search-icon {
  position: absolute;
  left: 18px; top: 50%;
  transform: translateY(-50%);
  width: 18px; height: 18px;
  color: var(--text-faint);
  pointer-events: none;
}
.search-kbd {
  position: absolute;
  right: 14px; top: 50%;
  transform: translateY(-50%);
}

.search-suggest {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}
.search-chip {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  padding: 5px 10px;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  color: var(--text-muted);
  cursor: pointer;
  background: transparent;
  transition: border-color 120ms, color 120ms;
}
.search-chip:hover { border-color: var(--accent-line); color: var(--text); }
.search-chip .k {
  color: var(--text-faint);
  margin-right: 6px;
}

/* ============== ENTITY CARD ============== */
.entity-card {
  border: 1px solid var(--hairline);
  background: var(--surface);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-radius: 10px;
  padding: 20px 22px;
  display: grid;
  gap: 14px;
  position: relative;
  box-shadow: var(--shadow-sm);
}
.entity-card .head {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  align-items: start;
}
.entity-card .name {
  font-family: 'Inter', sans-serif;
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.01em;
  line-height: 1.25;
}
.entity-card .role {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px;
  color: var(--text-faint);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-top: 4px;
}
.entity-card .id {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--text-dim);
  letter-spacing: 0.05em;
}
.entity-card .events {
  display: grid;
  gap: 6px;
  border-top: 1px solid var(--hairline);
  padding-top: 12px;
}
.entity-card .event-row {
  display: grid;
  grid-template-columns: 64px 1fr auto;
  gap: 10px;
  font-size: 12px;
  align-items: baseline;
}
.entity-card .event-row .date {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px;
  color: var(--text-dim);
  letter-spacing: 0.04em;
}
.entity-card .event-row .label { color: var(--text-muted); }
.entity-card .foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--hairline);
  padding-top: 12px;
  gap: 12px;
  flex-wrap: wrap;
}

/* ============== FOOTER ============== */
.foot {
  border-top: 1px solid var(--hairline);
  background: var(--surface);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  margin-top: 80px;
}
.foot-inner {
  max-width: 1320px;
  margin: 0 auto;
  padding: 48px 32px 32px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
}
.foot h5 {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-faint);
  font-weight: 500;
  margin-bottom: 14px;
}
.foot ul { list-style: none; }
.foot li { padding: 4px 0; }
.foot li a { color: var(--text-muted); font-size: 13px; }
.foot li a:hover { color: var(--text); }
.foot p { color: var(--text-muted); font-size: 13px; line-height: 1.6; max-width: 42ch; }
.foot-mini {
  max-width: 1320px;
  margin: 0 auto;
  padding: 18px 32px 24px;
  border-top: 1px solid var(--hairline);
  display: flex;
  justify-content: space-between;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--text-dim);
  letter-spacing: 0.06em;
}

/* ============== UTILS ============== */
.row { display: flex; align-items: center; gap: 12px; }
.row.between { justify-content: space-between; }
.row.wrap { flex-wrap: wrap; }
.col { display: flex; flex-direction: column; gap: 12px; }
.muted { color: var(--text-muted); }
.faint { color: var(--text-faint); }
.dim   { color: var(--text-dim); }

.rule { height: 1px; background: var(--hairline); border: 0; }
.rule.strong { background: var(--hairline-strong); }

@media (max-width: 980px) {
  .topbar-inner { grid-template-columns: auto auto; gap: 16px; height: auto; padding: 12px 20px; }
  .nav { grid-column: 1 / -1; justify-self: stretch; overflow-x: auto; }
  .page { padding: 0 20px; }
  .section { padding: 56px 0; }
  .section-head { grid-template-columns: 1fr; gap: 16px; }
  .section-head .title { font-size: 26px; }
  .foot-inner { grid-template-columns: 1fr 1fr; gap: 32px; }
  .brand-tagline { display: none; }
}