:root {
  --bg-void: #07080C;
  --bg-paper: #0C0E14;
  --bg-elevated: #11151F;
  --bg-glass: rgba(17, 21, 31, 0.86);
  --ink-primary: #F3F1EC;
  --ink-secondary: #B8B5AD;
  --ink-muted: #7E7B74;
  --rule-hairline: rgba(243, 241, 236, 0.14);
  --rule-strong: rgba(243, 241, 236, 0.34);
  --rule-heavy: #F3F1EC;
  --cobalt: #2952FF;
  --cobalt-bright: #4D73FF;
  --cobalt-Wash: rgba(41, 82, 255, 0.16);
  --crimson: #FF2A4B;
  --crimson-wash: rgba(255, 42, 75, 0.16);
  --emerald: #00D68F;
  --emerald-wash: rgba(0, 214, 143, 0.15);
  --gold: #EAB308;
  --gold-wash: rgba(234, 179, 8, 0.16);
}

html[data-theme="light"] {
  --bg-void: #ECE9E1;
  --bg-paper: #F5F3EE;
  --bg-elevated: #FFFFFF;
  --bg-glass: rgba(245, 243, 238, 0.90);
  --ink-primary: #090B10;
  --ink-secondary: #363942;
  --ink-muted: #646873;
  --rule-hairline: rgba(9, 11, 16, 0.15);
  --rule-strong: rgba(9, 11, 16, 0.38);
  --rule-heavy: #090B10;
  --cobalt: #0038FF;
  --cobalt-bright: #1A4BFF;
  --cobalt-Wash: rgba(0, 56, 255, 0.10);
  --crimson: #D91E36;
  --crimson-wash: rgba(217, 30, 54, 0.11);
  --emerald: #047857;
  --emerald-wash: rgba(4, 120, 87, 0.11);
  --gold: #B45309;
  --gold-wash: rgba(180, 83, 9, 0.12);
}

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

html, body {
  background-color: var(--bg-void);
  color: var(--ink-primary);
  font-family: 'Public Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(to right, var(--rule-hairline) 1px, transparent 1px),
    linear-gradient(to bottom, var(--rule-hairline) 1px, transparent 1px);
  background-size: 72px 72px;
  opacity: 0.26;
}

/* N3 Architectural Split Command Bar */
.command-bar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: stretch;
  background: var(--bg-paper);
  border-bottom: 3px double var(--rule-strong);
  backdrop-filter: blur(12px);
}

.brand-cell {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 20px;
  border-right: 1px solid var(--rule-strong);
  text-decoration: none;
  color: var(--ink-primary);
}

.brand-sigil {
  width: 24px;
  height: 24px;
  background: var(--cobalt);
  border: 2px solid var(--ink-primary);
  position: relative;
  flex-shrink: 0;
}

.brand-sigil::after {
  content: "";
  position: absolute;
  inset: 4px;
  border-right: 2px solid #FFFFFF;
  border-bottom: 2px solid #FFFFFF;
}

.brand-wordmark {
  font-family: 'Chakra Petch', sans-serif;
  font-weight: 700;
  font-size: 19px;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  line-height: 1;
}

.brand-tag {
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  color: var(--ink-secondary);
  letter-spacing: 0.05em;
  margin-top: 2px;
}

.nav-tabs {
  display: flex;
  align-items: stretch;
}

.nav-link {
  background: transparent;
  border: none;
  border-right: 1px solid var(--rule-hairline);
  color: var(--ink-secondary);
  padding: 0 22px;
  font-family: 'Chakra Petch', sans-serif;
  font-weight: 700;
  font-size: 13.5px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  white-space: nowrap;
  position: relative;
  transition: background-color 140ms ease, color 140ms ease;
}

.nav-link:hover {
  color: var(--ink-primary);
  background: var(--bg-elevated);
}

.nav-link[aria-current="page"] {
  color: var(--ink-primary);
  background: var(--cobalt-Wash);
}

.nav-link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -3px;
  height: 3px;
  background: var(--cobalt-bright);
}

.command-right {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 20px;
  border-left: 1px solid var(--rule-strong);
}

.telemetry-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 10px;
  border: 1px solid var(--rule-strong);
  background: var(--bg-elevated);
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  white-space: nowrap;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background: var(--emerald);
  display: inline-block;
  box-shadow: 0 0 8px var(--emerald);
}

.theme-btn {
  background: var(--ink-primary);
  color: var(--bg-paper);
  border: 1px solid var(--ink-primary);
  padding: 6px 12px;
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  cursor: pointer;
  white-space: nowrap;
  transition: transform 120ms cubic-bezier(0.23, 1, 0.32, 1);
}

.theme-btn:active {
  transform: scale(0.96);
}

/* Stress-Field Hero Stage */
.stress-stage {
  position: relative;
  z-index: 1;
  border-bottom: 2px solid var(--rule-heavy);
  background: var(--bg-paper);
  overflow: hidden;
}

#stressShaderCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  opacity: 0.82;
}

.stress-stage-inner {
  position: relative;
  z-index: 1;
  max-width: 1520px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 5fr 7fr;
  border-left: 1px solid var(--rule-strong);
  border-right: 1px solid var(--rule-strong);
}

.thesis-col {
  padding: 20px 24px;
  border-right: 2px solid var(--rule-strong);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 14px;
  background: var(--bg-glass);
}

.headline-monument {
  font-family: 'Chakra Petch', sans-serif;
  font-weight: 700;
  font-size: clamp(1.5rem, 2.2vw, 2.15rem);
  line-height: 1.08;
  letter-spacing: -0.025em;
  text-transform: uppercase;
}

.headline-accent {
  color: var(--crimson);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

.shock-scrubber-box {
  border: 1px solid var(--rule-strong);
  background: var(--bg-void);
  padding: 12px 14px;
  position: relative;
}

.crosshair-tl, .crosshair-br {
  position: absolute;
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  color: var(--cobalt-bright);
  line-height: 1;
  pointer-events: none;
}
.crosshair-tl { top: -6px; left: -5px; }
.crosshair-br { bottom: -6px; right: -5px; }

.scrubber-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 8px;
}

.scrubber-label {
  font-family: 'Chakra Petch', sans-serif;
  font-weight: 700;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.scrubber-readout {
  font-family: 'Space Mono', monospace;
  font-size: 15px;
  font-weight: 700;
  color: var(--crimson);
}

input[type="range"].shock-slider {
  width: 100%;
  accent-color: var(--cobalt-bright);
  cursor: pointer;
  height: 6px;
}

.scenario-preset-row {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 10px;
}

.preset-btn {
  background: var(--bg-elevated);
  border: 1px solid var(--rule-strong);
  color: var(--ink-secondary);
  padding: 6px 10px;
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  cursor: pointer;
  transition: transform 120ms cubic-bezier(0.23, 1, 0.32, 1), background-color 140ms ease, color 140ms ease;
}

.preset-btn:hover {
  color: var(--ink-primary);
  border-color: var(--ink-primary);
}

.preset-btn[aria-pressed="true"] {
  background: var(--cobalt);
  color: #FFFFFF;
  border-color: var(--cobalt-bright);
  font-weight: 700;
}

.preset-btn:active {
  transform: scale(0.96);
}

/* 30-Second Monumental Telemetry Grid */
.monument-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  background: rgba(12, 14, 20, 0.72);
}

html[data-theme="light"] .monument-metrics {
  background: rgba(245, 243, 238, 0.84);
}

.metric-slab {
  padding: 20px 22px;
  border-right: 1px solid var(--rule-strong);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
}

.metric-slab:last-child {
  border-right: none;
}

.metric-title {
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-secondary);
}

.metric-giant {
  font-family: 'Chakra Petch', sans-serif;
  font-weight: 700;
  font-size: clamp(2.1rem, 3.6vw, 3.4rem);
  line-height: 0.96;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  margin: 12px 0;
}

.metric-sub {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding-top: 10px;
  border-top: 1px solid var(--rule-hairline);
  font-family: 'Space Mono', monospace;
  font-size: 11.5px;
}

.status-tag {
  display: inline-flex;
  align-items: center;
  padding: 2px 7px;
  font-family: 'Space Mono', monospace;
  font-size: 10.5px;
  font-weight: 700;
  text-transform: uppercase;
  border: 1px solid currentColor;
}

.tag-breach {
  color: var(--crimson);
  background: var(--crimson-wash);
}

.tag-pass {
  color: var(--emerald);
  background: var(--emerald-wash);
}

.tag-cobalt {
  color: var(--cobalt-bright);
  background: var(--cobalt-Wash);
}

.tag-warn {
  color: var(--gold);
  background: var(--gold-wash);
}

/* Main Workspace */
.workspace {
  position: relative;
  z-index: 1;
  max-width: 1520px;
  margin: 0 auto;
  border-left: 1px solid var(--rule-strong);
  border-right: 1px solid var(--rule-strong);
  background: var(--bg-paper);
}

.route-pane {
  display: none;
}

.route-pane.active {
  display: block;
}

.arch-row-top {
  display: grid;
  grid-template-columns: 5fr 7fr;
  border-bottom: 2px solid var(--rule-heavy);
}

.arch-row-bottom {
  display: grid;
  grid-template-columns: 7fr 5fr;
  border-bottom: 2px solid var(--rule-heavy);
}

.arch-cell {
  border-right: 1px solid var(--rule-strong);
  display: flex;
  flex-direction: column;
  background: var(--bg-paper);
}

.arch-cell:last-child {
  border-right: none;
}

.cell-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 20px;
  border-bottom: 1px solid var(--rule-strong);
  background: var(--bg-elevated);
  gap: 10px;
  flex-wrap: wrap;
}

.cell-title {
  font-family: 'Chakra Petch', sans-serif;
  font-weight: 700;
  font-size: 15px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.cell-body {
  padding: 18px 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 16px;
}

/* Guardrail Control Bar */
.guardrail-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr) auto;
  gap: 10px;
  padding: 10px 12px;
  background: var(--bg-void);
  border: 1px solid var(--rule-hairline);
  align-items: end;
}

.guardrail-field label {
  display: block;
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  color: var(--ink-secondary);
  text-transform: uppercase;
  margin-bottom: 4px;
}

.guardrail-field input {
  width: 100%;
  background: var(--bg-paper);
  border: 1px solid var(--rule-strong);
  color: var(--ink-primary);
  font-family: 'Space Mono', monospace;
  font-size: 12.5px;
  padding: 5px 8px;
}

/* Tables */
.table-scroll {
  width: 100%;
  overflow-x: auto;
}

.arch-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.arch-table th {
  text-align: left;
  padding: 8px 8px;
  font-family: 'Space Mono', monospace;
  font-size: 10.5px;
  text-transform: uppercase;
  color: var(--ink-secondary);
  border-bottom: 2px solid var(--rule-strong);
}

.arch-table td {
  padding: 10px 8px;
  border-bottom: 1px solid var(--rule-hairline);
  vertical-align: middle;
}

.mono-num {
  font-family: 'Space Mono', monospace;
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.token-badge {
  font-family: 'Chakra Petch', sans-serif;
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.02em;
}

.weight-bar-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
}

.mini-track {
  width: 58px;
  height: 6px;
  background: var(--bg-void);
  border: 1px solid var(--rule-hairline);
  position: relative;
}

.mini-fill-cur {
  height: 100%;
  background: var(--crimson);
}

.mini-fill-tgt {
  height: 100%;
  background: var(--cobalt-bright);
}

.chart-frame {
  border: 1px solid var(--rule-hairline);
  background: var(--bg-void);
  padding: 14px;
  position: relative;
}

.chart-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  color: var(--ink-secondary);
  margin-bottom: 8px;
}

.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.swatch-line {
  width: 16px;
  height: 3px;
  display: inline-block;
}

/* Correlation Matrix + Scatter Lens */
.matrix-lens-split {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 16px;
  align-items: stretch;
}

.corr-matrix {
  display: grid;
  grid-template-columns: 52px repeat(4, 1fr);
  gap: 3px;
  font-family: 'Space Mono', monospace;
  font-size: 12px;
}

.m-hdr {
  padding: 8px 4px;
  text-align: center;
  font-weight: 700;
  color: var(--ink-secondary);
  background: var(--bg-void);
  border: 1px solid var(--rule-hairline);
}

.m-cell {
  padding: 12px 4px;
  text-align: center;
  border: 1px solid var(--rule-hairline);
  cursor: pointer;
  font-variant-numeric: tabular-nums;
  transition: transform 120ms cubic-bezier(0.23, 1, 0.32, 1), border-color 120ms ease;
}

.m-cell:hover, .m-cell:focus-visible {
  border-color: var(--ink-primary);
  transform: scale(0.97);
  outline: none;
}

.m-cell.active-lens {
  outline: 2px solid var(--cobalt-bright);
  outline-offset: -2px;
}

.m-diag {
  background: var(--bg-void);
  color: var(--ink-muted);
}

.m-breach {
  background: var(--crimson-wash);
  color: var(--crimson);
  font-weight: 700;
  border-color: var(--crimson);
}

.m-warn {
  background: var(--gold-wash);
  color: var(--gold);
}

.m-safe {
  background: var(--emerald-wash);
  color: var(--emerald);
}

.lens-inspector {
  border: 1px solid var(--rule-strong);
  background: var(--bg-void);
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

/* Risk Officer Audit Trail */
.officer-step {
  border-left: 3px solid var(--cobalt-bright);
  background: var(--bg-void);
  border-top: 1px solid var(--rule-hairline);
  border-right: 1px solid var(--rule-hairline);
  border-bottom: 1px solid var(--rule-hairline);
  padding: 12px 14px;
  margin-bottom: 10px;
}

.officer-step.breach-step {
  border-left-color: var(--crimson);
}

.officer-meta {
  display: flex;
  justify-content: space-between;
  font-family: 'Space Mono', monospace;
  font-size: 10.5px;
  color: var(--ink-secondary);
  margin-bottom: 4px;
  gap: 8px;
}

.officer-text {
  font-size: 13.5px;
  color: var(--ink-primary);
  max-width: 65ch;
}

/* Action Bar */
.commit-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  border: 2px solid var(--cobalt-bright);
  background: var(--cobalt-Wash);
  flex-wrap: wrap;
}

.btn-commit {
  background: var(--cobalt);
  color: #FFFFFF;
  border: 1px solid var(--ink-primary);
  padding: 11px 20px;
  font-family: 'Chakra Petch', sans-serif;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
  white-space: nowrap;
  transition: transform 140ms cubic-bezier(0.23, 1, 0.32, 1), background-color 140ms ease;
}

.btn-commit:hover {
  background: var(--cobalt-bright);
}

.btn-commit:active {
  transform: scale(0.97);
}

.envelope-viewer {
  background: var(--bg-void);
  border: 1px solid var(--rule-strong);
  padding: 14px;
  font-family: 'Space Mono', monospace;
  font-size: 11.5px;
  line-height: 1.48;
  color: var(--ink-primary);
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 440px;
}

/* Ft5 Minimal Telemetry Colophon Bar */
.colophon-bar {
  max-width: 1520px;
  margin: 0 auto;
  padding: 14px 20px;
  border-left: 1px solid var(--rule-strong);
  border-right: 1px solid var(--rule-strong);
  border-bottom: 2px solid var(--rule-heavy);
  background: var(--bg-void);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  color: var(--ink-secondary);
}

@media (max-width: 1024px) {
  .command-bar {
    grid-template-columns: 1fr;
  }
  .brand-cell {
    border-right: none;
    border-bottom: 1px solid var(--rule-hairline);
  }
  .nav-tabs {
    flex-wrap: wrap;
    border-bottom: 1px solid var(--rule-hairline);
  }
  .nav-link {
    padding: 9px 10px;
    font-size: 11px;
  }
  .command-right {
    border-left: none;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
  }
  .stress-stage-inner,
  .arch-row-top,
  .arch-row-bottom,
  .matrix-lens-split,
  .monument-metrics,
  .guardrail-strip {
    grid-template-columns: 1fr;
  }
  .thesis-col,
  .metric-slab,
  .arch-cell {
    border-right: none;
    border-bottom: 1px solid var(--rule-strong);
    min-width: 0;
  }
}