/* Lab — Polarity GPS skin (research surface) */

:root {
  --gps-font: "Sohne", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Helvetica, system-ui, sans-serif;
  --gps-font-mono: "Sohne Mono", ui-monospace, Menlo, monospace;
  --gps-void: #000000;
  --gps-surface-raised: #0a0a0a;
  --gps-text: rgba(255, 255, 255, 0.92);
  --gps-text-secondary: rgba(255, 255, 255, 0.65);
  --gps-text-faint: rgba(255, 255, 255, 0.35);
  --gps-border: rgba(255, 255, 255, 0.08);
  --gps-accent: #7fedc7;
  --gps-accent-dim: rgba(127, 237, 199, 0.15);
  --gps-ease: cubic-bezier(0.32, 0.72, 0, 1);
}

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

html, body { height: 100%; }

body.lab-gps-page {
  margin: 0;
  min-height: 100vh;
  background: var(--gps-void);
  color: var(--gps-text);
  font-family: var(--gps-font);
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.lab-gps-page nav.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: max(12px, env(safe-area-inset-top)) 20px 12px;
  background: rgba(0, 0, 0, 0.72);
  backdrop-filter: blur(20px) saturate(1.2);
  -webkit-backdrop-filter: blur(20px) saturate(1.2);
  border-bottom: 1px solid var(--gps-border);
}

body.lab-gps-page nav.site-nav .word {
  font-family: var(--gps-font);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.02em;
  text-transform: lowercase;
  color: var(--gps-text);
  text-decoration: none;
}

body.lab-gps-page .docs-main {
  position: relative;
  z-index: 1;
  max-width: 680px;
  margin: 0 auto;
  padding: calc(88px + env(safe-area-inset-top, 0px)) 20px 64px;
}

body.lab-gps-page .docs-head {
  margin: 0 0 40px;
}

body.lab-gps-page .docs-kicker,
body.lab-gps-page .lab-kicker {
  margin: 0 0 10px;
  font-family: var(--gps-font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gps-text-faint);
}

body.lab-gps-page .docs-title,
body.lab-gps-page .lab-title {
  margin: 0 0 16px;
  font-family: var(--gps-font);
  font-size: clamp(40px, 8vw, 52px);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.05;
  color: var(--gps-text);
}

body.lab-gps-page .docs-lede,
body.lab-gps-page .lab-line {
  margin: 0 0 24px;
  max-width: 36em;
  font-size: 17px;
  font-weight: 300;
  line-height: 1.55;
  color: var(--gps-text-secondary);
}

body.lab-gps-page .docs-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

body.lab-gps-page .docs-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid var(--gps-border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--gps-text);
  font-family: var(--gps-font);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: -0.01em;
  text-decoration: none;
  transition: background 0.2s var(--gps-ease), border-color 0.2s var(--gps-ease);
}

body.lab-gps-page .docs-chip:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.14);
}

body.lab-gps-page .docs-chip:first-child {
  background: var(--gps-accent);
  border-color: transparent;
  color: #000;
}

body.lab-gps-page .docs-chip:first-child:hover {
  filter: brightness(1.05);
}

body.lab-gps-page .docs-section {
  margin: 0 0 40px;
}

body.lab-gps-page .docs-section h2 {
  margin: 0 0 16px;
  font-family: var(--gps-font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gps-text-faint);
}

body.lab-gps-page .docs-section p,
body.lab-gps-page .docs-section li {
  font-size: 16px;
  font-weight: 300;
  line-height: 1.6;
  color: var(--gps-text-secondary);
}

body.lab-gps-page .docs-section p {
  margin: 0 0 12px;
}

body.lab-gps-page .docs-section a {
  color: var(--gps-accent);
  text-decoration: none;
}

body.lab-gps-page .docs-section a:hover {
  text-decoration: underline;
}

body.lab-gps-page .docs-section ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

body.lab-gps-page .docs-section li {
  margin: 0 0 12px;
  padding-left: 14px;
  position: relative;
}

body.lab-gps-page .docs-section li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--gps-accent);
  opacity: 0.7;
}

body.lab-gps-page .docs-section strong {
  font-weight: 600;
  color: var(--gps-text);
}

body.lab-gps-page .tiles {
  display: grid;
  gap: 12px;
}

body.lab-gps-page .tile {
  display: block;
  padding: 18px 18px 16px;
  border-radius: 16px;
  border: 1px solid var(--gps-border);
  background: var(--gps-surface-raised);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.2s var(--gps-ease), background 0.2s var(--gps-ease);
}

body.lab-gps-page .tile:hover {
  border-color: rgba(255, 255, 255, 0.14);
  background: #16161a;
}

body.lab-gps-page .tile-meta {
  display: block;
  margin-bottom: 8px;
  font-family: var(--gps-font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gps-text-faint);
}

body.lab-gps-page .status-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 6px;
  border-radius: 50%;
  background: var(--gps-text-faint);
  vertical-align: middle;
}

body.lab-gps-page .status-dot.live {
  background: var(--gps-accent);
  box-shadow: 0 0 8px var(--gps-accent-dim);
}

body.lab-gps-page .tile-name {
  display: block;
  margin-bottom: 6px;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--gps-text);
}

body.lab-gps-page .tile p {
  margin: 0;
  font-size: 14px;
  font-weight: 300;
  line-height: 1.5;
  color: var(--gps-text-secondary);
}

body.lab-gps-page .docs-panel {
  padding: 16px;
  border-radius: 14px;
  border: 1px solid var(--gps-border);
  background: var(--gps-surface-raised);
}

body.lab-gps-page .docs-panel-label {
  margin: 0 0 8px;
  font-family: var(--gps-font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gps-text-faint);
}

body.lab-gps-page .docs-cta-box {
  margin: 48px 0 32px;
  padding: 24px;
  border-radius: 18px;
  border: 1px solid var(--gps-border);
  background: linear-gradient(180deg, rgba(255,255,255,0.04) 0%, rgba(255,255,255,0.02) 100%);
}

body.lab-gps-page .docs-cta-box h2 {
  margin: 0 0 10px;
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--gps-text);
}

body.lab-gps-page .docs-email {
  font-size: 17px;
  font-weight: 500;
  color: var(--gps-accent);
  text-decoration: none;
}

body.lab-gps-page .docs-rule {
  margin: 32px 0 20px;
  border: 0;
  border-top: 1px solid var(--gps-border);
}

body.lab-gps-page .docs-meta {
  margin: 0;
  font-size: 13px;
  color: var(--gps-text-faint);
}

body.lab-gps-page .docs-meta a {
  color: var(--gps-text-secondary);
  text-decoration: none;
}

body.lab-gps-page .docs-meta a:hover {
  color: var(--gps-text);
}

body.lab-gps-page .lab-trail,
body.lab-gps-page .docs-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  max-width: 680px;
  margin: 0 auto;
  padding: 0 20px 32px;
  font-size: 13px;
  color: var(--gps-text-faint);
}

body.lab-gps-page .lab-trail a {
  color: var(--gps-text-secondary);
  text-decoration: none;
}

body.lab-gps-page .lab-trail a:hover {
  color: var(--gps-text);
}

/* ── Research portal (Meta-style artifact rows) ── */

body.lab-research-page .docs-main {
  max-width: 760px;
}

body.lab-gps-page .lab-loading,
body.lab-gps-page .lab-error {
  margin: 0;
  font-size: 14px;
  color: var(--gps-text-faint);
}

body.lab-gps-page .lab-projects {
  display: grid;
  gap: 28px;
}

body.lab-gps-page .lab-project {
  padding: 20px;
  border-radius: 18px;
  border: 1px solid var(--gps-border);
  background: var(--gps-surface-raised);
}

body.lab-gps-page .lab-project-title {
  margin: 0 0 6px;
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--gps-text);
}

body.lab-gps-page .lab-project-tagline {
  margin: 0;
  font-size: 14px;
  font-weight: 400;
  color: var(--gps-accent);
}

body.lab-gps-page .lab-project-summary {
  margin: 14px 0 16px;
  font-size: 15px;
  line-height: 1.55;
  color: var(--gps-text-secondary);
}

body.lab-gps-page .artifact-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

body.lab-gps-page .artifact-chip {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 120px;
  max-width: 220px;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--gps-border);
  background: rgba(255, 255, 255, 0.03);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.2s var(--gps-ease), background 0.2s var(--gps-ease);
}

body.lab-gps-page .artifact-chip:hover {
  border-color: rgba(127, 237, 199, 0.35);
  background: rgba(127, 237, 199, 0.06);
}

body.lab-gps-page .artifact-kind {
  font-family: var(--gps-font-mono);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gps-text-faint);
}

body.lab-gps-page .artifact-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--gps-text);
}

body.lab-gps-page .artifact-desc {
  font-size: 11px;
  font-weight: 300;
  line-height: 1.4;
  color: var(--gps-text-faint);
}

body.lab-gps-page .artifact-status {
  font-family: var(--gps-font-mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gps-text-faint);
}

body.lab-gps-page .lab-steps {
  margin: 0 0 20px;
  padding-left: 1.2em;
  color: var(--gps-text-secondary);
  font-size: 15px;
  line-height: 1.65;
}

body.lab-gps-page .lab-steps li {
  margin-bottom: 8px;
}

body.lab-gps-page .lab-steps li::before {
  display: none;
}

body.lab-gps-page .lab-code-block {
  margin: 0 0 14px;
  border-radius: 14px;
  border: 1px solid var(--gps-border);
  background: #0a0a0c;
  overflow: hidden;
}

body.lab-gps-page .lab-code-block-tall pre {
  max-height: 320px;
  overflow: auto;
}

body.lab-gps-page .lab-code-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  border-bottom: 1px solid var(--gps-border);
  font-family: var(--gps-font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gps-text-faint);
}

body.lab-gps-page .lab-copy {
  border: 0;
  background: transparent;
  color: var(--gps-accent);
  font-family: var(--gps-font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  padding: 4px 0;
}

body.lab-gps-page .lab-copy:hover {
  text-decoration: underline;
}

body.lab-gps-page .lab-code-block pre {
  margin: 0;
  padding: 14px;
  overflow-x: auto;
  font-family: var(--gps-font-mono);
  font-size: 12px;
  line-height: 1.5;
  color: var(--gps-text-secondary);
}

body.lab-gps-page .lab-code-block code {
  font-family: inherit;
}

body.lab-gps-page .docs-section code {
  font-family: var(--gps-font-mono);
  font-size: 0.9em;
  color: var(--gps-accent);
}

body.lab-gps-page .lab-table-wrap {
  overflow-x: auto;
  margin-top: 10px;
}

body.lab-gps-page .lab-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

body.lab-gps-page .lab-table th,
body.lab-gps-page .lab-table td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--gps-border);
  text-align: left;
  vertical-align: top;
}

body.lab-gps-page .lab-table th {
  font-family: var(--gps-font-mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gps-text-faint);
  font-weight: 500;
}

body.lab-gps-page .lab-table td {
  color: var(--gps-text-secondary);
}

body.lab-gps-page .lab-table-title {
  margin: 16px 0 0;
  font-size: 12px;
  font-weight: 600;
  color: var(--gps-text);
}

body.lab-gps-page .docs-chip-inline {
  display: inline-flex;
  min-height: 36px;
  margin: 4px 8px 4px 0;
  font-size: 13px;
}

body.lab-gps-page .lab-pre {
  margin: 0;
  background: transparent;
  border: 0;
  padding: 0;
  font-family: var(--gps-font-mono);
  font-size: 12px;
  line-height: 1.5;
  color: var(--gps-text-secondary);
  white-space: pre-wrap;
  word-break: break-word;
}

body.lab-gps-page .lab-pre-trace {
  margin-top: 12px;
  max-height: 280px;
  overflow: auto;
  padding: 12px;
  border-radius: 10px;
  background: #0a0a0c;
  border: 1px solid var(--gps-border);
}

body.lab-gps-page .lab-account-panel {
  margin-top: 14px;
}

body.lab-gps-page .lab-panel-note {
  margin: 10px 0 0;
  font-size: 13px;
  color: var(--gps-text-faint);
}

body.lab-gps-page .lab-export-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

body.lab-gps-page .lab-trace-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 4px;
}

body.lab-gps-page .lab-trace-controls label {
  font-family: var(--gps-font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gps-text-faint);
}

body.lab-gps-page .lab-trace-controls select {
  flex: 1;
  min-width: 180px;
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--gps-border);
  background: #0a0a0c;
  color: var(--gps-text);
  font-family: var(--gps-font);
  font-size: 13px;
}

/* CCX visualization */
body.lab-gps-page .ccx-viz-kicker {
  margin: 0 0 6px;
  font-family: var(--gps-font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gps-accent);
}

body.lab-gps-page .ccx-viz-note {
  margin: 0 0 16px;
  font-size: 14px;
  color: var(--gps-text-secondary);
}

body.lab-gps-page .ccx-bars {
  display: grid;
  gap: 14px;
}

body.lab-gps-page .ccx-bar-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--gps-text);
}

body.lab-gps-page .ccx-bar-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 6px;
}

body.lab-gps-page .ccx-bar-stats {
  font-family: var(--gps-font-mono);
  font-size: 11px;
  color: var(--gps-text-faint);
  white-space: nowrap;
}

body.lab-gps-page .ccx-traj-up { color: var(--gps-accent); }
body.lab-gps-page .ccx-traj-down { color: #f87171; }
body.lab-gps-page .ccx-traj-stable { color: var(--gps-text-faint); }

body.lab-gps-page .ccx-bar-track {
  height: 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  overflow: hidden;
}

body.lab-gps-page .ccx-bar-fill {
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, rgba(127, 237, 199, 0.5), var(--gps-accent));
}

body.lab-gps-page .ccx-bar-gloss {
  margin: 6px 0 0;
  font-size: 12px;
  color: var(--gps-text-faint);
}

body.lab-gps-page .ccx-co-section {
  margin-top: 20px;
}

body.lab-gps-page .ccx-co-list {
  margin: 8px 0 0;
  padding: 0;
  list-style: none;
}

body.lab-gps-page .ccx-co-list li {
  margin: 0 0 10px;
  padding-left: 14px;
  font-size: 14px;
  color: var(--gps-text-secondary);
}

body.lab-gps-page .ccx-co-freq {
  font-family: var(--gps-font-mono);
  font-size: 11px;
  color: var(--gps-text-faint);
}

body.lab-gps-page .ccx-path-box {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--gps-border);
}

body.lab-gps-page .ccx-path-line {
  margin: 0 0 6px;
  font-size: 15px;
  color: var(--gps-text);
}

body.lab-gps-page .ccx-path-gloss {
  margin: 0;
  font-size: 13px;
  color: var(--gps-text-faint);
}

body.lab-gps-page .ccx-empty {
  margin: 0;
  font-size: 14px;
  color: var(--gps-text-faint);
}

body.lab-gps-page .bench-dims {
  display: grid;
  gap: 14px;
  margin-bottom: 16px;
}

body.lab-gps-page .bench-dim h4 {
  margin: 0 0 6px;
  font-family: var(--gps-font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gps-accent);
}

body.lab-gps-page .bench-question {
  margin: 0 0 8px;
  font-size: 15px;
  color: var(--gps-text);
}

body.lab-gps-page .bench-signals {
  margin: 0 0 8px;
  font-size: 12px;
}

body.lab-gps-page .bench-signals code {
  margin-right: 6px;
}

body.lab-gps-page .bench-illus {
  margin: 0;
  font-size: 11px;
}

body.lab-gps-page .lab-steps-compact {
  margin-top: 12px;
}

body.lab-gps-page .lab-honesty-summary {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.55;
  color: var(--gps-text);
}

body.lab-gps-page .lab-honesty-grid {
  display: grid;
  gap: 20px;
}

@media (min-width: 560px) {
  body.lab-gps-page .lab-honesty-grid {
    grid-template-columns: 1fr 1fr;
  }
}

body.lab-gps-page .lab-honesty-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

body.lab-gps-page .lab-honesty-list li {
  margin: 0 0 8px;
  padding-left: 14px;
  position: relative;
  font-size: 14px;
  line-height: 1.5;
  color: var(--gps-text-secondary);
}

body.lab-gps-page .lab-honesty-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--gps-accent);
  opacity: 0.7;
}

body.lab-gps-page .lab-honesty-muted li::before {
  background: var(--gps-text-faint);
  opacity: 0.5;
}

body.lab-gps-page .lab-honesty-meta {
  margin-top: 14px;
}

body.lab-gps-page .lab-details {
  margin-bottom: 40px;
  border: 1px solid var(--gps-border);
  border-radius: 14px;
  padding: 4px 16px 16px;
  background: rgba(255, 255, 255, 0.02);
}

body.lab-gps-page .lab-details summary {
  cursor: pointer;
  padding: 12px 0;
  font-family: var(--gps-font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gps-text-faint);
  list-style: none;
}

body.lab-gps-page .lab-details summary::-webkit-details-marker {
  display: none;
}

body.lab-gps-page .lab-details[open] summary {
  color: var(--gps-accent);
  margin-bottom: 8px;
}