/* ASBOS Design System — research-paper aesthetic */

@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500&display=swap");

:root {
  --color-bg: #ffffff;
  --color-bg-subtle: #fafafa;
  --color-text: #1a1a1a;
  --color-text-secondary: #4a4a4a;
  --color-text-muted: #8a8a8a;
  --color-accent: #9a7b4f;
  --color-accent-hover: #7d6340;
  --color-border: #e5e5e5;
  --color-border-light: #f0f0f0;
  --color-button-bg: #f2f2f2;
  --color-button-hover: #e8e8e8;
  --arch-line: #b0b0b0;
  --arch-fill: #ffffff;
  --arch-orchestration-fill: #f7f7f7;
  --arch-human-fill: #faf8f5;
  --font-primary: "Iowan Old Style BT", "Iowan Old Style", Georgia, serif;
  --font-mono: "IBM Plex Mono", "SF Mono", Consolas, monospace;
  --max-width-narrow: 720px;
  --max-width-content: 960px;
  --max-width-wide: 1140px;
  --radius: 0;
  --nav-height: 64px;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

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

html {
  scroll-behavior: smooth;
  color-scheme: light;
}

body {
  margin: 0;
  font-family: var(--font-primary);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

/* Radix Icons */

.radix-icon {
  display: inline-block;
  vertical-align: -0.125em;
  flex-shrink: 0;
  color: var(--color-text-muted);
}

.feature-icon,
.card-icon {
  display: block;
}

.agent-heading-icon {
  color: var(--color-text-muted);
}

.btn-text .radix-icon {
  color: currentColor;
}

.nav-toggle .radix-icon {
  color: var(--color-text);
}

/* Typography */

h1,
h2,
h3,
h4,
.serif {
  font-family: var(--font-primary);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(2.25rem, 5vw, 3.25rem);
  margin: 0 0 1.5rem;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin: 3rem 0 1.25rem;
}

h3 {
  font-size: 1.25rem;
  margin: 2rem 0 0.75rem;
}

p {
  margin: 0 0 1.25rem;
  color: var(--color-text-secondary);
}

.lead {
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
}

.eyebrow {
  font-family: var(--font-primary);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.text-muted {
  color: var(--color-text-muted);
}

.text-accent {
  color: var(--color-accent);
}

em,
.italic {
  font-family: var(--font-primary);
  font-style: italic;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--color-accent-hover);
}

/* Layout */

.container-narrow {
  max-width: var(--max-width-narrow);
  margin: 0 auto;
  padding: 0 2rem;
}

.container-content {
  max-width: var(--max-width-content);
  margin: 0 auto;
  padding: 0 2rem;
}

.container-wide {
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: 0 2rem;
}

.section {
  padding: 5rem 0;
}

.section-sm {
  padding: 3rem 0;
}

.divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 0;
}

/* Navigation */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border-light);
}

.nav-inner {
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: 0 2rem;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  font-family: var(--font-primary);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text);
  text-decoration: none;
}

.brand:hover {
  color: var(--color-text);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  text-decoration: none;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-text);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  padding: 0.5rem;
  cursor: pointer;
  color: var(--color-text);
}

/* Buttons — squared */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-primary);
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s ease, color 0.15s ease;
}

.btn-primary {
  background: var(--color-button-bg);
  color: var(--color-text);
}

.btn-primary:hover {
  background: var(--color-button-hover);
  color: var(--color-text);
}

.btn-outline {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-outline:hover {
  background: var(--color-bg-subtle);
  color: var(--color-text);
}

.btn-text {
  background: none;
  padding: 0;
  color: var(--color-accent);
  font-weight: 400;
}

.btn-text:hover {
  color: var(--color-accent-hover);
}

.btn-text .icon {
  margin-left: 0.25rem;
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
}

/* Hero */

.hero {
  padding: 6rem 0 5rem;
  text-align: center;
}

.hero-graphic {
  margin: 0 auto 3rem;
  max-width: 280px;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 3.75rem);
  margin-bottom: 1.5rem;
}

.hero-subtitle {
  font-family: var(--font-primary);
  font-style: italic;
  font-size: 1.25rem;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-bottom: 2.5rem;
  text-decoration: none;
}

.hero-badge:hover {
  color: var(--color-accent);
}

.hero-badge .dot {
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 0;
}

/* Content sections */

.content-block {
  margin-bottom: 4rem;
}

.content-block h2 {
  margin-top: 0;
}

.content-block p strong {
  color: var(--color-text);
  font-weight: 600;
}

.pull-quote {
  font-family: var(--font-primary);
  font-style: italic;
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  border-left: 2px solid var(--color-border);
  padding-left: 1.5rem;
  margin: 2rem 0;
}

/* Feature grid */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2.5rem;
  margin: 3rem 0;
}

.feature-item {
  text-align: center;
}

.feature-icon {
  width: 18px;
  height: 18px;
  margin: 0 auto 1rem;
  color: var(--color-text-muted);
}

.feature-value {
  font-family: var(--font-primary);
  font-size: 1.5rem;
  color: var(--color-text);
  margin-bottom: 0.25rem;
}

.feature-label {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

/* Workflow cascade */

.cascade {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.8;
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  padding: 2rem;
  color: var(--color-text-secondary);
  overflow-x: auto;
}

.cascade .event {
  color: var(--color-accent);
}

/* Cards */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}

.card {
  border: 1px solid var(--color-border);
  padding: 1.75rem;
  background: var(--color-bg);
}

.card h3 {
  margin-top: 0;
  font-size: 1.125rem;
}

.card p {
  font-size: 0.9375rem;
  margin-bottom: 0;
}

.card-icon {
  width: 16px;
  height: 16px;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

/* Agent cards */

.agent-card {
  border-top: 1px solid var(--color-border);
  padding: 2rem 0;
}

.agent-card:first-child {
  border-top: none;
}

.agent-card h3 {
  margin-top: 0;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.agent-card ul {
  margin: 0;
  padding-left: 1.25rem;
  color: var(--color-text-secondary);
}

.agent-card li {
  margin-bottom: 0.5rem;
}

/* Results table */

.results-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
  margin: 2rem 0;
}

.results-table th,
.results-table td {
  text-align: left;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--color-border);
}

.results-table th {
  font-family: var(--font-primary);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  background: var(--color-bg-subtle);
}

.results-table td {
  color: var(--color-text-secondary);
}

.results-table .highlight {
  color: var(--color-text);
  font-weight: 500;
}

.results-table .best {
  color: var(--color-accent);
}

/* Chart bars */

.chart-bars {
  margin: 3rem 0;
}

.chart-row {
  display: grid;
  grid-template-columns: 180px 1fr 60px;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.chart-label {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.chart-bar-track {
  height: 8px;
  background: var(--color-border-light);
}

.chart-bar-fill {
  height: 100%;
  background: var(--color-text-muted);
  transition: width 0.6s ease;
}

.chart-bar-fill.accent {
  background: var(--color-accent);
}

.chart-value {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  text-align: right;
}

.btn-text:hover {
  color: var(--color-accent-hover);
}

.btn-sm {
  padding: 0.4rem 0.75rem;
  font-size: 0.8125rem;
}

/* Demo page */

.demo-page {
  padding-top: 0;
}

.demo-toolbar {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  padding: 1rem 1.25rem;
  border: 1px solid var(--color-border);
  background: var(--color-bg-subtle);
  margin-bottom: 2rem;
}

.demo-status-block {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  flex: 1;
  min-width: 200px;
}

.demo-status-dot {
  width: 8px;
  height: 8px;
  margin-top: 0.45rem;
  background: var(--color-text-muted);
  flex-shrink: 0;
}

.demo-status-dot[data-state="running"] {
  background: var(--color-accent);
}

.demo-status-dot[data-state="complete"] {
  background: #5a7a5e;
}

.demo-status-label {
  font-size: 0.9375rem;
  color: var(--color-text);
}

.demo-status-meta {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-top: 0.15rem;
}

.demo-run-id {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.demo-run-id-label {
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.demo-run-id code {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--color-text);
}

.demo-replay-btn {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.demo-phases {
  list-style: none;
  margin: 0 0 2.5rem;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 0;
  position: relative;
}

.demo-phases::before {
  content: "";
  position: absolute;
  top: 20px;
  left: 8%;
  right: 8%;
  height: 1px;
  background: var(--color-border);
  z-index: 0;
}

.demo-phase {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 0 0.5rem;
}

.demo-phase-icon {
  width: 40px;
  height: 40px;
  margin: 0 auto 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text-muted);
}

.demo-phase.is-active .demo-phase-icon {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: var(--color-bg-subtle);
}

.demo-phase.is-complete .demo-phase-icon {
  border-color: #5a7a5e;
  color: #5a7a5e;
}

.demo-phase-label {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  line-height: 1.35;
  margin-bottom: 0.35rem;
}

.demo-phase-state {
  font-size: 0.6875rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.demo-phase.is-active .demo-phase-state {
  color: var(--color-accent);
}

.demo-phase.is-complete .demo-phase-state {
  color: #5a7a5e;
}

.demo-layout {
  display: grid;
  grid-template-columns: 1fr 160px;
  gap: 1.5rem;
  align-items: start;
}

.demo-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.demo-panel {
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  padding: 1.25rem;
  min-height: 360px;
}

.demo-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.demo-panel h2 {
  margin: 0 0 0.25rem;
  font-size: 1rem;
}

.demo-panel-sub {
  margin: 0 0 1rem;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.demo-live-badge {
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
  padding: 0.15rem 0.45rem;
}

.demo-timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-height: 420px;
  overflow-y: auto;
}

.demo-timeline-item {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 0.75rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--color-border-light);
}

.demo-timeline-item:last-child {
  border-bottom: none;
}

.demo-timeline-time {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--color-text-muted);
  padding-top: 0.1rem;
}

.demo-timeline-title {
  font-size: 0.875rem;
  color: var(--color-text);
  margin-bottom: 0.2rem;
}

.demo-timeline-summary {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  line-height: 1.45;
}

.demo-timeline-item.is-active .demo-timeline-title {
  color: var(--color-accent);
}

.demo-timeline-item.is-complete .demo-timeline-title {
  color: var(--color-text);
}

.demo-selected-card {
  border: 1px solid var(--color-border);
  background: var(--color-bg-subtle);
  padding: 1rem;
  margin-bottom: 1rem;
  position: relative;
}

.demo-selected-main {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.demo-avatar {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-secondary);
}

.demo-selected-name {
  font-size: 0.9375rem;
  color: var(--color-text);
}

.demo-selected-id {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.demo-selected-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-size: 0.6875rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #5a7a5e;
  border: 1px solid #5a7a5e;
  padding: 0.15rem 0.4rem;
}

.demo-selected-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
}

.demo-stat-label {
  display: block;
  font-size: 0.6875rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 0.15rem;
}

.demo-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8125rem;
}

.demo-table th,
.demo-table td {
  padding: 0.5rem 0.35rem;
  border-bottom: 1px solid var(--color-border-light);
  text-align: left;
}

.demo-table th {
  font-size: 0.6875rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  font-weight: 500;
}

.demo-table tr.is-selected td {
  color: var(--color-text);
  background: var(--color-bg-subtle);
}

.demo-table tr.is-muted td {
  color: var(--color-text-muted);
}

.demo-guard-id {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--color-text-muted);
}

.demo-scoring {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
  border-top: 1px solid var(--color-border-light);
  padding-top: 0.75rem;
}

.demo-scoring li {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  padding: 0.25rem 0;
}

.demo-scoring li span {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.demo-outcome-banner {
  border: 1px solid #5a7a5e;
  background: #f6f8f6;
  color: #3d5640;
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  margin-bottom: 1rem;
}

.demo-outcomes {
  list-style: none;
  margin: 0;
  padding: 0;
}

.demo-outcome-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--color-border-light);
  font-size: 0.8125rem;
}

.demo-outcome-label {
  color: var(--color-text-secondary);
}

.demo-outcome-value {
  color: var(--color-text);
  text-align: right;
}

.demo-outcome-footer {
  display: flex;
  justify-content: space-between;
  margin-top: 1rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--color-border-light);
  font-size: 0.8125rem;
}

.demo-outcome-status {
  color: #5a7a5e;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.6875rem;
}

.demo-raw {
  border: 1px solid var(--color-border);
  background: var(--color-bg);
}

.demo-raw-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--color-border-light);
}

.demo-raw-header h2 {
  margin: 0;
  font-size: 1rem;
}

.demo-raw-actions {
  display: flex;
  gap: 0.5rem;
}

.demo-raw-grid {
  display: grid;
  grid-template-columns: 1fr 240px;
  min-height: 280px;
}

.demo-json-output {
  margin: 0;
  padding: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.55;
  color: var(--color-text-secondary);
  background: var(--color-bg-subtle);
  overflow: auto;
  border-right: 1px solid var(--color-border-light);
}

.demo-event-index {
  list-style: none;
  margin: 0;
  padding: 1rem;
  overflow-y: auto;
}

.demo-event-index li {
  display: grid;
  grid-template-columns: 8px 1fr auto;
  gap: 0.5rem;
  align-items: start;
  padding: 0.35rem 0;
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  border-bottom: 1px solid var(--color-border-light);
}

.demo-event-dot {
  width: 6px;
  height: 6px;
  margin-top: 0.35rem;
  background: var(--color-accent);
}

.demo-event-index time {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.demo-aside {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  position: sticky;
  top: calc(var(--nav-height) + 1rem);
}

.demo-aside-btn {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  width: 100%;
  padding: 0.55rem 0.65rem;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text-secondary);
  font-family: var(--font-primary);
  font-size: 0.75rem;
  text-decoration: none;
  cursor: pointer;
  text-align: left;
  transition: background 0.15s ease, color 0.15s ease;
}

.demo-aside-btn:hover {
  background: var(--color-bg-subtle);
  color: var(--color-text);
}

/* Legacy demo helpers (docs/other pages) */

.event-timeline {
  margin: 2rem 0;
}

.event-step {
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 1rem;
  padding-bottom: 1.5rem;
  position: relative;
}

.event-step:not(:last-child)::before {
  content: "";
  position: absolute;
  left: 11px;
  top: 24px;
  bottom: 0;
  width: 1px;
  background: var(--color-border);
}

.event-dot {
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  margin-top: 6px;
  border-radius: 0;
}

.event-type {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 0.25rem;
}

.event-payload {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border-light);
  padding: 0.75rem 1rem;
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-word;
}

.json-output {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.6;
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  padding: 1.5rem;
  overflow-x: auto;
  max-height: 500px;
  color: var(--color-text-secondary);
}

/* Docs layout */

.docs-layout {
  display: grid;
  grid-template-columns: 220px 1fr 180px;
  gap: 3rem;
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: 3rem 2rem 5rem;
}

.docs-sidebar {
  position: sticky;
  top: calc(var(--nav-height) + 2rem);
  align-self: start;
}

.docs-sidebar h4 {
  font-family: var(--font-primary);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin: 0 0 1rem;
}

.docs-nav {
  list-style: none;
  margin: 0;
  padding: 0;
}

.docs-nav li {
  margin-bottom: 0.5rem;
}

.docs-nav a {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  text-decoration: none;
}

.docs-nav a:hover,
.docs-nav a.active {
  color: var(--color-accent);
}

.docs-content h1 {
  font-size: 2.25rem;
  margin-bottom: 2rem;
}

.docs-content h2 {
  font-size: 1.5rem;
  margin-top: 2.5rem;
}

.docs-content h3 {
  font-size: 1.125rem;
}

.docs-content ul,
.docs-content ol {
  color: var(--color-text-secondary);
  margin: 0 0 1.25rem;
  padding-left: 1.5rem;
}

.docs-content li {
  margin-bottom: 0.5rem;
}

.docs-content code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--color-bg-subtle);
  padding: 0.15em 0.4em;
  border: 1px solid var(--color-border-light);
}

.docs-content pre {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  padding: 1.25rem;
  overflow-x: auto;
}

.docs-toc {
  position: sticky;
  top: calc(var(--nav-height) + 2rem);
  align-self: start;
}

.docs-toc h4 {
  font-family: var(--font-primary);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin: 0 0 1rem;
}

.docs-toc ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.docs-toc a {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

/* Mermaid */

.mermaid-container {
  margin: 3rem 0;
  padding: 2rem;
  border: 1px solid var(--color-border);
  background: var(--color-bg-subtle);
  text-align: center;
  overflow-x: auto;
}

/* Radar chart — Thinking Machines benchmark style */

.radar-section {
  padding: 4rem 0;
  border-top: 1px solid var(--color-border-light);
}

.radar-section-title {
  text-align: center;
  font-size: clamp(1.75rem, 3.5vw, 2.25rem);
  margin: 0 0 0.75rem;
  font-weight: 400;
}

.radar-section-subtitle {
  text-align: center;
  max-width: 560px;
  margin: 0 auto 2.5rem;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

.radar-chart-wrap {
  display: flex;
  justify-content: center;
  margin: 0 auto 2rem;
  max-width: 640px;
}

.radar-chart-canvas {
  width: 100%;
  max-width: 520px;
}

.radar-chart-svg {
  width: 100%;
  height: auto;
  display: block;
  overflow: visible;
}

.radar-ring {
  fill: none;
  stroke: var(--color-border);
  stroke-width: 1;
}

.radar-spoke {
  stroke: var(--color-border);
  stroke-width: 1;
}

.radar-stroke {
  stroke-width: 2;
  stroke-linejoin: round;
}

.radar-series-primary .radar-stroke {
  stroke-width: 2.5;
}

.radar-axis-label {
  font-family: var(--font-primary);
  font-size: 11px;
}

.radar-axis-title {
  fill: var(--color-text);
  font-weight: 400;
}

.radar-axis-category {
  fill: var(--color-text-muted);
  font-size: 10px;
}

.radar-legend {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1.5rem 2.5rem;
  margin: 1rem 0 3rem;
}

.radar-legend-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.radar-legend-primary {
  color: var(--color-text);
  font-weight: 400;
}

.radar-legend-swatch {
  width: 14px;
  height: 3px;
  border-radius: 0;
  flex-shrink: 0;
}

.radar-legend-primary .radar-legend-swatch {
  height: 4px;
}

.radar-dimensions {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem 2.5rem;
  margin-top: 2rem;
  padding-top: 3rem;
  border-top: 1px solid var(--color-border-light);
}

.radar-dimension h4 {
  margin: 0 0 0.25rem;
  font-size: 1rem;
  font-weight: 400;
}

.radar-dimension-category {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin: 0 0 0.75rem;
  letter-spacing: 0.02em;
}

.radar-dimension p:last-child {
  font-size: 0.9375rem;
  margin: 0;
  color: var(--color-text-secondary);
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 4rem 0 3rem;
  margin-top: 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 2rem;
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: 0 2rem;
}

.footer-col h5 {
  font-family: var(--font-primary);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin: 0 0 1rem;
}

.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-col li {
  margin-bottom: 0.5rem;
}

.footer-col a {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  text-decoration: none;
}

.footer-col a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  max-width: var(--max-width-wide);
  margin: 3rem auto 0;
  padding: 0 2rem;
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* Page header */

.page-header {
  padding: 4rem 0 3rem;
  text-align: center;
  border-bottom: 1px solid var(--color-border-light);
}

.page-header h1 {
  margin-bottom: 1rem;
}

.research-hero h1 {
  max-width: 920px;
  margin-left: auto;
  margin-right: auto;
  font-size: clamp(1.875rem, 3.5vw, 2.625rem);
  line-height: 1.15;
}

.research-hero .lead {
  max-width: 680px;
}

.page-header .lead {
  max-width: 560px;
  margin: 0 auto;
}

/* CTA section */

.cta-section {
  text-align: center;
  padding: 5rem 0;
  border-top: 1px solid var(--color-border);
}

/* Paper page */

.paper-links {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 400px;
  margin: 2rem auto;
}

.paper-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  border: 1px solid var(--color-border);
  text-decoration: none;
  color: var(--color-text);
  transition: background 0.15s ease;
}

.paper-link:hover {
  background: var(--color-bg-subtle);
  color: var(--color-text);
}

.paper-link span {
  font-size: 0.875rem;
}

.paper-link .icon {
  color: var(--color-text-muted);
}

/* 404 */

.error-page {
  text-align: center;
  padding: 8rem 2rem;
}

/* Research page */

.research-author {
  font-size: 1.125rem;
  color: var(--color-text);
  margin: 0 0 0.25rem;
}

.research-affiliation {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  margin: 0 0 1.5rem;
}

.research-list {
  color: var(--color-text-secondary);
  padding-left: 1.25rem;
  margin: 0 0 1.5rem;
}

.research-list-columns {
  columns: 2;
  column-gap: 2rem;
}

.notice-banner {
  border: 1px solid var(--color-accent);
  background: var(--color-bg-subtle);
  padding: 1rem 1.25rem;
  margin: 1.5rem 0 2rem;
  font-size: 0.9375rem;
  color: var(--color-text);
}

.evidence-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin: 2rem 0;
}

.evidence-card {
  border: 1px solid var(--color-border);
  padding: 1.25rem;
  background: var(--color-bg);
}

.evidence-value {
  font-size: 1.5rem;
  color: var(--color-text);
  margin-bottom: 0.5rem;
}

.evidence-label {
  font-size: 0.875rem;
  margin: 0 0 0.75rem;
}

.evidence-source {
  font-size: 0.8125rem;
  margin: 0 0 0.35rem;
}

.evidence-note {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin: 0;
}

.author-profile {
  border: 1px solid var(--color-border);
  padding: 1.75rem;
  background: var(--color-bg-subtle);
}

.citation-block {
  margin: 2rem 0;
}

.citation-box {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1rem;
  align-items: start;
  border: 1px solid var(--color-border);
  background: var(--color-bg-subtle);
  padding: 1rem;
}

.citation-pre {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--color-text-secondary);
}

.table-scroll {
  overflow-x: auto;
  margin: 1rem 0 2rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Architecture diagram */

.arch-diagram {
  margin: 2rem 0 3rem;
}

.arch-diagram-svg {
  width: 100%;
  height: auto;
  display: block;
  max-width: 920px;
  margin: 0 auto;
}

.arch-diagram-caption {
  margin-top: 1rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  text-align: center;
}

.arch-box rect {
  fill: var(--arch-fill);
  stroke: var(--color-border);
  stroke-width: 1;
}

.arch-orchestration rect {
  fill: var(--arch-orchestration-fill);
}

.arch-human rect {
  fill: var(--arch-human-fill);
}

.arch-box text {
  fill: var(--color-text-secondary);
  font-family: var(--font-primary);
  font-size: 13px;
}

.arch-box .arch-title {
  fill: var(--color-text);
  font-size: 15px;
}

.arch-line {
  stroke: var(--arch-line);
  stroke-width: 1;
}

/* Workflow */

.workflow-steps {
  list-style: none;
  margin: 2rem 0 0;
  padding: 0;
}

.workflow-step {
  display: flex;
  gap: 1rem;
  padding-bottom: 1.5rem;
  border-left: 1px solid var(--color-border);
  margin-left: 20px;
  padding-left: 1.5rem;
  position: relative;
}

.workflow-step:last-child {
  border-left-color: transparent;
}

.workflow-step-num {
  position: absolute;
  left: -20px;
  top: 0;
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 0.875rem;
}

.workflow-step-body {
  flex: 1;
  min-width: 0;
}

.workflow-step-body h3 {
  margin: 0 0 0.35rem;
  font-size: 1rem;
}

.workflow-step-body p {
  margin: 0;
  font-size: 0.9375rem;
}

/* Featured research card */

.featured-research {
  border: 1px solid var(--color-border);
  padding: 2rem;
  background: var(--color-bg-subtle);
  margin: 0;
}

.featured-research-badge {
  display: inline-block;
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  padding: 0.25rem 0.5rem;
  margin-bottom: 1rem;
}

.featured-research h2 {
  margin: 0 0 0.75rem;
  font-size: 1.35rem;
}

.featured-research p {
  margin-bottom: 1.25rem;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* Responsive */

@media (max-width: 992px) {
  .docs-layout {
    grid-template-columns: 1fr;
  }

  .docs-sidebar,
  .docs-toc {
    position: static;
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: 1rem 2rem 1.5rem;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links li {
    width: 100%;
    padding: 0.5rem 0;
  }

  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .chart-row {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .research-list-columns {
    columns: 1;
  }

  .workflow-step {
    margin-left: 16px;
    padding-left: 1.25rem;
  }

  .workflow-step-num {
    left: -16px;
    width: 32px;
    height: 32px;
    font-size: 0.8125rem;
  }

  .citation-box {
    grid-template-columns: 1fr;
  }

  .demo-phases {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    row-gap: 1.5rem;
  }

  .demo-phases::before {
    display: none;
  }

  .demo-grid {
    grid-template-columns: 1fr;
  }

  .demo-layout {
    grid-template-columns: 1fr;
  }

  .demo-aside {
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
  }

  .demo-aside-btn {
    width: auto;
    flex: 1 1 calc(50% - 0.5rem);
  }

  .demo-raw-grid {
    grid-template-columns: 1fr;
  }

  .demo-json-output {
    border-right: none;
    border-bottom: 1px solid var(--color-border-light);
  }

  .arch-box text {
    font-size: 11px;
  }
}