@import url('https://fonts.googleapis.com/css2?family=VT323&family=Lora:ital,wght@0,400;0,700;1,400&family=JetBrains+Mono:wght@400;700&family=Space+Mono:wght@400;700&family=Inter:wght@400;700;800&display=swap');

:root {
  color-scheme: light;
  --blueprint-ink: #1e3a8a;
  --blueprint-ink-muted: rgba(30, 58, 138, 0.6);
  --blueprint-paper: #f4f4f0;
  --blueprint-paper-white: #ffffff;
  --blueprint-highlight: #dbeafe;
  --blueprint-border: #cbd5e1;
  --industrial-orange: #f97316;
  --grid-color: rgba(30, 58, 138, 0.05);
  --text: #1a1a1a;
  --muted: #334155;
  --faint: #64748b;
  --green: #15803d;
  --amber: #b45309;
  --rose: #be123c;
  --code: #f8fafc;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --serif: Lora, Georgia, serif;
  --mono: "Space Mono", "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --blueprint-ink: #e2e8f0;
    --blueprint-ink-muted: rgba(226, 232, 240, 0.4);
    --blueprint-paper: #0f172a;
    --blueprint-paper-white: #1e293b;
    --blueprint-highlight: #1e293b;
    --blueprint-border: #334155;
    --industrial-orange: #fb923c;
    --grid-color: rgba(255, 255, 255, 0.03);
    --text: #f8fafc;
    --muted: #cbd5e1;
    --faint: #94a3b8;
    --green: #86efac;
    --amber: #fbbf24;
    --rose: #fb7185;
    --code: #0f172a;
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--blueprint-paper);
}

body {
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  background-color: var(--blueprint-paper);
  background-image:
    linear-gradient(var(--grid-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
  background-size: 25px 25px;
  color: var(--text);
  font: 15px/1.68 var(--serif);
  letter-spacing: 0;
}

a {
  color: var(--blueprint-ink);
  font-weight: 700;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--industrial-orange);
}

img,
svg,
video,
canvas {
  max-width: 100%;
  height: auto;
}

.skip-link {
  position: absolute;
  top: -80px;
  left: 16px;
  z-index: 10;
  border: 1px solid var(--blueprint-ink);
  background: var(--blueprint-paper-white);
  color: var(--blueprint-ink);
  padding: 8px 10px;
  font: 700 0.78rem/1.3 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.skip-link:focus {
  top: 16px;
}

.doc-shell {
  max-width: 1440px;
  margin: 0 auto;
  padding: 28px 22px 72px;
}

.doc-hero,
.doc-sidebar,
.doc-content > section,
.doc-content > div[id],
.doc-content > .doc-prose-block,
.home-section {
  border: 1px solid var(--blueprint-border);
  border-radius: 0;
  background: var(--blueprint-paper-white);
  box-shadow: 10px 10px 0 var(--blueprint-highlight);
}

.doc-hero {
  padding: clamp(2rem, 5vw, 4rem);
}

.doc-topbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-bottom: 22px;
  color: var(--blueprint-ink-muted);
  font: 700 0.72rem/1.3 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.doc-topbar a,
.doc-topbar span,
.pill,
.chip,
.tag,
.card-meta,
.status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--blueprint-border);
  border-radius: 0;
  background: var(--blueprint-paper);
  color: var(--blueprint-ink);
  padding: 5px 8px;
  font: 700 0.68rem/1.35 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.doc-topbar a:hover {
  border-color: var(--industrial-orange);
  text-decoration: none;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--industrial-orange);
  font: 700 0.75rem/1.4 var(--mono);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

h1,
h2,
h3,
h4 {
  color: var(--blueprint-ink);
  text-transform: uppercase;
}

h1 {
  max-width: 1040px;
  margin: 0;
  font-family: var(--sans);
  font-size: clamp(2.65rem, 7vw, 5.4rem);
  font-weight: 800;
  letter-spacing: 0;
  line-height: 0.92;
  overflow-wrap: anywhere;
}

h2 {
  margin: 36px 0 14px;
  font-family: var(--mono);
  font-size: clamp(1.35rem, 3vw, 1.85rem);
  font-weight: 700;
  line-height: 1.16;
  letter-spacing: 0;
}

h3 {
  margin: 26px 0 10px;
  font: 700 1.05rem/1.28 var(--mono);
  letter-spacing: 0;
}

h4 {
  margin: 22px 0 8px;
  color: var(--industrial-orange);
  font: 700 0.86rem/1.45 var(--mono);
  letter-spacing: 0.08em;
}

.subtitle {
  max-width: 960px;
  margin: 18px 0 0;
  color: var(--text);
  font-size: 1.12rem;
}

p,
ul,
ol,
td,
.doc-card span:not(.card-meta),
.doc-card em {
  color: var(--text);
}

p {
  margin: 10px 0;
}

ul,
ol {
  padding-left: 22px;
}

li {
  margin: 6px 0;
}

strong,
.stat b,
.doc-card strong,
.phase-title {
  color: var(--blueprint-ink);
}

hr {
  border: 0;
  border-top: 1px solid var(--blueprint-border);
  margin: 28px 0;
}

.hero-grid,
.home-card-grid,
.path-grid,
.grid,
.grid-2,
.grid-3,
.cols-2,
.cols-3 {
  display: grid;
  gap: 1px;
  background: var(--blueprint-border);
}

.hero-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 28px;
}

.hero-grid.four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.home-card-grid,
.grid.three,
.grid-3,
.cols-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.path-grid,
.grid.two,
.grid-2,
.cols-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid.four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.stat,
.card,
.app-card,
.path-card,
.doc-card,
.phase,
.accordion-item {
  min-width: 0;
  border: 0;
  border-radius: 0;
  background: var(--blueprint-paper-white);
  padding: 18px;
}

.stat {
  display: block;
  min-height: 118px;
  color: inherit;
}

.stat b {
  display: block;
  margin-bottom: 8px;
  font: 700 0.9rem/1.35 var(--mono);
  text-transform: uppercase;
}

.stat span {
  display: block;
  font-size: 0.9rem;
}

.link-stat:hover,
.doc-card:hover {
  background: var(--blueprint-highlight);
  color: var(--blueprint-ink);
  text-decoration: none;
}

.doc-layout {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  gap: 22px;
  align-items: start;
  margin-top: 28px;
}

.doc-sidebar {
  position: sticky;
  top: 18px;
  max-height: calc(100vh - 36px);
  overflow: auto;
  padding: 14px;
}

.home-link {
  display: block;
  border: 1px solid var(--blueprint-border);
  background: var(--blueprint-paper);
  color: var(--blueprint-ink);
  margin-bottom: 14px;
  padding: 9px 10px;
  font: 700 0.78rem/1.4 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.home-link:hover {
  border-color: var(--industrial-orange);
  text-decoration: none;
}

.doc-sidebar h2 {
  margin: 18px 0 8px;
  color: var(--blueprint-ink-muted);
  font: 700 0.68rem/1.4 var(--mono);
  letter-spacing: 0.12em;
}

.side-group {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--blueprint-border);
}

.side-group h3 {
  margin: 0 0 5px;
  color: var(--industrial-orange);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
}

.side-group a,
.page-toc a {
  display: block;
  color: var(--text);
  padding: 6px 8px;
  font-size: 13px;
  font-weight: 400;
  line-height: 1.35;
}

.side-group a:hover,
.page-toc a:hover,
.side-group a[aria-current='page'] {
  background: var(--blueprint-highlight);
  color: var(--blueprint-ink);
  text-decoration: none;
}

.empty-note {
  display: block;
  color: var(--faint);
  padding: 6px 8px;
  font-size: 13px;
}

.doc-content {
  min-width: 0;
}

.doc-content > [id],
.doc-content > section {
  scroll-margin-top: 18px;
}

.doc-content > section,
.doc-content > div[id],
.doc-content > .doc-prose-block,
.home-section {
  margin-top: 28px;
  overflow: hidden;
}

.doc-content > section:first-child,
.doc-content > div[id]:first-child,
.doc-content > .doc-prose-block:first-child,
.home-section:first-child {
  margin-top: 0;
}

.section-inner,
.doc-prose-block,
.doc-content > div[id],
.doc-content > section {
  padding: clamp(1.5rem, 4vw, 2.4rem);
}

.doc-content > section .section-inner {
  padding: 0;
}

.doc-content section > h2:first-child,
.doc-content div[id] > h2:first-child,
.doc-prose-block > h2:first-child,
.home-section h2:first-child {
  margin-top: 0;
}

code {
  border: 1px solid var(--blueprint-border);
  border-radius: 0;
  background: var(--blueprint-highlight);
  color: var(--blueprint-ink);
  padding: 1px 5px;
  font: 13px/1.45 "JetBrains Mono", monospace;
  overflow-wrap: anywhere;
}

pre,
.diagram {
  overflow: auto;
  margin: 16px 0;
  border: 1px solid var(--blueprint-border);
  border-left: 4px solid var(--blueprint-ink);
  border-radius: 0;
  background: var(--code);
  color: var(--text);
  padding: 16px;
  font: 13px/1.55 "JetBrains Mono", monospace;
}

pre code {
  border: 0;
  background: transparent;
  color: inherit;
  padding: 0;
}

.table-wrap {
  overflow: auto;
  border: 1px solid var(--blueprint-border);
  margin: 16px 0;
}

table {
  width: 100%;
  min-width: 760px;
  margin: 16px 0;
  border-collapse: collapse;
  background: var(--blueprint-paper-white);
}

.table-wrap table {
  margin: 0;
}

th,
td {
  border: 1px solid var(--blueprint-border);
  padding: 11px 12px;
  text-align: left;
  vertical-align: top;
}

th {
  background: var(--blueprint-ink);
  color: var(--blueprint-paper);
  font: 700 0.72rem/1.35 var(--mono);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.card h3,
.card h4,
.app-card h3,
.path-card h3 {
  margin-top: 0;
}

.card.bar.green {
  box-shadow: inset 0 4px 0 var(--green);
}

.card.bar.amber {
  box-shadow: inset 0 4px 0 var(--amber);
}

.card.bar.cyan,
.card.bar.blue {
  box-shadow: inset 0 4px 0 var(--blueprint-ink);
}

.callout,
.principle,
.quote,
.warning {
  margin: 16px 0;
  border: 1px solid var(--blueprint-border);
  border-left: 4px solid var(--industrial-orange);
  background: var(--blueprint-highlight);
  color: var(--text);
  padding: 15px;
}

.callout.success {
  border-left-color: var(--green);
}

.callout.warn,
.warning {
  border-left-color: var(--amber);
}

.callout.danger {
  border-left-color: var(--rose);
}

.phase {
  margin: 14px 0;
  overflow: hidden;
  border: 1px solid var(--blueprint-border);
}

.phase-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid var(--blueprint-border);
  background: var(--blueprint-paper);
  padding: 12px 14px;
}

.phase-meta {
  color: var(--industrial-orange);
  font-size: 13px;
}

.phase-body {
  padding: 14px;
}

.lead {
  color: var(--text);
  font-size: 17px;
}

.score {
  color: var(--industrial-orange);
  font: 700 26px/1 var(--mono);
}

.accordion {
  display: grid;
  gap: 12px;
}

.accordion-item {
  border: 1px solid var(--blueprint-border);
  overflow: hidden;
  padding: 0;
}

.accordion-header {
  width: 100%;
  border: 0;
  border-bottom: 1px solid var(--blueprint-border);
  background: var(--blueprint-paper);
  color: var(--blueprint-ink);
  padding: 12px 14px;
  text-align: left;
  font: 700 14px/1.4 var(--mono);
  text-transform: uppercase;
}

.accordion-content {
  padding: 14px;
}

.doc-button {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  border: 1px solid var(--blueprint-ink);
  background: var(--blueprint-paper);
  color: var(--blueprint-ink);
  padding: 7px 10px;
  font-weight: 700;
}

.doc-button:hover {
  background: var(--blueprint-highlight);
  text-decoration: none;
}

.doc-embed {
  height: 760px;
  border: 1px solid var(--blueprint-border);
  overflow: hidden;
  background: var(--code);
  margin-top: 16px;
}

.doc-embed iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

.home-content {
  margin-top: 28px;
}

.home-card-grid {
  margin-top: 14px;
}

.doc-card {
  display: flex;
  min-height: 218px;
  flex-direction: column;
  gap: 9px;
  color: inherit;
}

.doc-card strong {
  font: 700 1.06rem/1.24 var(--mono);
  text-transform: uppercase;
}

.doc-card span:not(.card-meta),
.doc-card em {
  font-style: normal;
}

.doc-card em {
  margin-top: auto;
  color: var(--blueprint-ink-muted);
  font: 700 0.8rem/1.45 var(--mono);
}

.doc-card.secondary {
  min-height: 160px;
}

.path-grid {
  margin-top: 14px;
}

.path-card ol {
  margin-bottom: 0;
}

.path-card a {
  font-weight: 700;
}

.status.real {
  color: var(--green);
}

.status.partial {
  color: var(--amber);
}

.status.fake,
.status.missing {
  color: var(--rose);
}

.doc-footer {
  margin-top: 34px;
  color: var(--blueprint-ink-muted);
  font: 700 0.72rem/1.45 var(--mono);
  letter-spacing: 0.08em;
  text-align: center;
  text-transform: uppercase;
}

@media (max-width: 1080px) {
  .doc-layout {
    grid-template-columns: 1fr;
  }

  .doc-sidebar {
    position: static;
    max-height: none;
  }

  .hero-grid,
  .hero-grid.four,
  .home-card-grid,
  .path-grid,
  .grid.three,
  .grid.four,
  .grid-3,
  .cols-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 860px) {
  .doc-layout {
    gap: 16px;
  }

  .doc-sidebar {
    padding: 10px;
    box-shadow: 6px 6px 0 var(--blueprint-highlight);
  }

  .doc-sidebar > h2:first-of-type,
  .doc-sidebar .side-group {
    display: none;
  }

  .doc-sidebar > h2:not(:first-of-type) {
    margin: 8px 0 7px;
  }

  .home-link {
    display: inline-flex;
    align-items: center;
    min-height: 36px;
    margin: 0 0 8px;
    padding: 7px 10px;
  }

  .page-toc {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding: 0 0 5px;
    -webkit-overflow-scrolling: touch;
    scroll-snap-type: x proximity;
  }

  .page-toc a {
    flex: 0 0 auto;
    max-width: min(70vw, 260px);
    border: 1px solid var(--blueprint-border);
    background: var(--blueprint-paper);
    padding: 7px 10px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    scroll-snap-align: start;
  }
}

@media (max-width: 680px) {
  body {
    font-size: 14px;
    line-height: 1.58;
  }

  .doc-shell {
    padding: 14px max(12px, env(safe-area-inset-right)) 54px max(12px, env(safe-area-inset-left));
  }

  .doc-hero {
    padding: 22px 16px;
    box-shadow: 6px 6px 0 var(--blueprint-highlight);
  }

  .doc-topbar {
    margin-bottom: 16px;
  }

  .doc-topbar a,
  .doc-topbar span {
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  h1 {
    font-size: clamp(2.15rem, 11vw, 3.25rem);
    line-height: 0.96;
  }

  h2 {
    margin: 28px 0 10px;
    font-size: 1.35rem;
  }

  h3 {
    margin: 22px 0 8px;
  }

  .subtitle,
  .lead {
    font-size: 15px;
  }

  .doc-layout,
  .home-content {
    margin-top: 16px;
  }

  .doc-content > section,
  .doc-content > div[id],
  .doc-content > .doc-prose-block,
  .home-section {
    margin-top: 16px;
    box-shadow: 6px 6px 0 var(--blueprint-highlight);
  }

  .hero-grid,
  .hero-grid.four,
  .home-card-grid,
  .path-grid,
  .grid.two,
  .grid.three,
  .grid.four,
  .grid-2,
  .grid-3,
  .cols-2,
  .cols-3 {
    grid-template-columns: 1fr;
  }

  .stat,
  .doc-card,
  .doc-card.secondary {
    min-height: auto;
  }

  .section-inner,
  .doc-prose-block,
  .doc-content > div[id],
  .doc-content > section {
    padding: 18px 16px;
  }

  .card,
  .app-card,
  .path-card,
  .doc-card {
    padding: 14px;
  }

  .phase-head {
    flex-direction: column;
    gap: 3px;
  }

  .phase-body {
    padding: 12px;
  }

  .table-wrap {
    margin: 14px -2px;
  }

  table {
    min-width: 540px;
    font-size: 13px;
  }

  th,
  td {
    padding: 9px 10px;
  }

  pre,
  .diagram {
    padding: 13px;
    font-size: 12px;
  }

  .doc-embed {
    height: min(620px, 72vh);
  }

  ul,
  ol {
    padding-left: 19px;
  }
}

@media (max-width: 420px) {
  .doc-shell {
    padding-top: 10px;
  }

  .doc-hero {
    padding: 16px 14px;
  }

  h1 {
    font-size: clamp(2rem, 11vw, 2.65rem);
  }

  h2 {
    font-size: 1.22rem;
  }

  .page-toc a {
    max-width: 78vw;
  }

  table {
    min-width: 500px;
  }

  th,
  td {
    padding: 8px;
  }
}

@media print {
  body {
    background: white;
    color: #111827;
  }

  .doc-shell {
    max-width: none;
    padding: 0;
  }

  .doc-sidebar,
  .doc-topbar,
  .skip-link {
    display: none;
  }

  .doc-layout {
    display: block;
  }

  .doc-hero,
  .doc-content > section,
  .doc-content > div[id],
  .doc-content > .doc-prose-block,
  .home-section,
  .card,
  .path-card,
  .doc-card,
  .phase {
    box-shadow: none;
    background: white;
    border-color: #d1d5db;
  }

  p,
  li,
  td,
  .subtitle {
    color: #374151;
  }

  h1,
  h2,
  h3,
  h4,
  strong {
    color: #111827;
  }

  code,
  pre {
    background: #f3f4f6;
    color: #111827;
  }
}