:root {
  color-scheme: light;
  --ground: #eaf0f4;
  --surface: #f7fafc;
  --surface-strong: #ffffff;
  --code-bg: #101c26;
  --code-sub: #0c1720;
  --code-ink: #e6f0f7;
  --code-control: #203444;
  --code-control-hover: #2b4559;
  --code-border: #38556b;
  --ink: #0c1720;
  --muted: #344b5c;
  --bar-neutral: #7c93a6;
  --accent: #095c49;
  --accent-hover: #064436;
  --accent-soft: #d7efe8;
  --signal: #b53f15;
  --signal-soft: #fae6de;
  --ocean: #0b6bcb;
  --ocean-soft: #e3effa;
  --tok-fn: #7cc4fa;
  --tok-num: #f7c873;
  --rule: #c4d1dc;
  --rule-strong: #9fb2c2;
  --font-sans: "Chivo", "Avenir Next", "Helvetica Neue", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", Menlo, Consolas, ui-monospace, monospace;
}

* {
  box-sizing: border-box;
}

::selection {
  background: var(--accent);
  color: var(--surface-strong);
}

html {
  scroll-behavior: smooth;
  scrollbar-color: var(--rule-strong) var(--ground);
}

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.62;
  caret-color: var(--accent);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
  text-underline-offset: 0.22em;
  text-decoration-thickness: 1.5px;
}

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

:focus-visible {
  outline: 2.5px solid var(--signal);
  outline-offset: 3px;
}

code {
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

.page-shell {
  width: min(1140px, calc(100% - 3.5rem));
  margin: 0 auto;
  padding: 1.75rem 0 5.5rem;
}

.top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
  padding-bottom: 1.35rem;
  border-bottom: 1px solid var(--rule);
  margin-bottom: 3.75rem;
}

.brand-trail {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.9375rem;
  color: var(--muted);
}

.brand-trail a {
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
}

.brand-trail a:hover {
  text-decoration: underline;
}

.version-pill {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 0.8125rem;
  padding: 0.18rem 0.55rem;
  border-radius: 6px;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  font-size: 0.9375rem;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 600;
}

.site-nav a:hover {
  color: var(--ink);
  text-decoration: underline;
}

/* Hero Section */
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
  gap: 3rem;
  align-items: start;
  padding-bottom: 4.5rem;
  border-bottom: 1px solid var(--rule);
}

.hero-grid > *,
.workbench-ledger > *,
.arch-grid > *,
.boundary-strip > * {
  min-width: 0;
}

h1 {
  margin: 0 0 1.15rem;
  font-size: clamp(2.125rem, 3.5vw, 2.875rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
  font-weight: 800;
  text-wrap: balance;
  max-width: 18ch;
}

.hero-lead {
  margin: 0 0 1.75rem;
  font-size: 1.0625rem;
  line-height: 1.62;
  color: var(--muted);
  max-width: 46ch;
  text-wrap: pretty;
}

.hero-lead strong {
  color: var(--ink);
  font-weight: 700;
}

/* Unified Two-Tier Terminal Install Chamber */
.install-widget {
  margin-bottom: 1.75rem;
  background: var(--code-bg);
  color: var(--code-ink);
  border: 1px solid var(--code-border);
  border-radius: 12px;
  overflow: hidden;
}

.install-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.8rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
}

.prompt-char {
  color: #6bc2ad;
  user-select: none;
  font-weight: 700;
}

.install-bar code {
  flex: 1;
  min-width: 0;
  white-space: normal;
  overflow-wrap: anywhere;
  line-height: 1.45;
  font-size: 0.8125rem;
  color: var(--code-ink);
}

.install-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
  padding: 0.5rem 0.85rem;
  background: var(--code-sub);
  border-top: 1px solid var(--code-border);
}

.install-switch {
  display: inline-flex;
  gap: 0.2rem;
  background: var(--code-control);
  padding: 0.18rem;
  border-radius: 8px;
  flex-wrap: wrap;
}

.install-tab {
  background: transparent;
  color: var(--code-ink);
  border: none;
  border-radius: 6px;
  padding: 0.24rem 0.58rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 140ms ease, color 140ms ease;
}

.install-tab:hover {
  background: var(--code-control-hover);
}

.install-tab[aria-selected="true"] {
  background: var(--accent);
  color: var(--surface-strong);
}

.guard-inline {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 0.8125rem;
  color: #6bc2ad;
  font-weight: 600;
}

.cta-row {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  flex-wrap: wrap;
}

.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.7rem 1.15rem;
  border-radius: 8px;
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
}

.btn-primary {
  background: var(--accent);
  color: var(--surface-strong);
  border: 1px solid var(--accent);
}

.btn-primary:hover {
  background: var(--accent-hover);
  color: var(--surface-strong);
}

.btn-secondary {
  background: var(--surface-strong);
  color: var(--ink);
  border: 1px solid var(--rule-strong);
}

.btn-secondary:hover {
  background: var(--surface);
  color: var(--ink);
}

.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.38rem;
  flex-shrink: 0;
  background: var(--code-control);
  color: var(--code-ink);
  border: 1px solid var(--code-border);
  border-radius: 6px;
  padding: 0.34rem 0.68rem;
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 140ms ease, border-color 140ms ease;
}

.copy-btn:hover {
  background: var(--code-control-hover);
}

.copy-btn .icon-check {
  display: none;
}

.copy-btn.is-copied {
  border-color: #26997f;
  color: #b0e2d5;
}

.copy-btn.is-copied .icon-clip {
  display: none;
}

.copy-btn.is-copied .icon-check {
  display: block;
}

/* Recessed Segmented Pill Controls */
.tab-group {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  flex-wrap: wrap;
  background: var(--ground);
  padding: 0.22rem;
  border-radius: 8px;
  border: 1px solid var(--rule);
}

.workload-tab,
.trace-tab,
.config-tab {
  background: transparent;
  color: var(--muted);
  border: none;
  border-radius: 6px;
  padding: 0.38rem 0.74rem;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 140ms ease, color 140ms ease;
}

.workload-tab:hover,
.trace-tab:hover,
.config-tab:hover {
  color: var(--ink);
}

.workload-tab[aria-selected="true"],
.trace-tab[aria-selected="true"],
.config-tab[aria-selected="true"] {
  background: var(--accent);
  color: var(--surface-strong);
}

/* Hero Benchmark Ledger */
.hero-bench {
  background: var(--surface-strong);
  border: 1px solid var(--rule-strong);
  border-radius: 14px;
  overflow: hidden;
}

.bench-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.85rem;
  flex-wrap: wrap;
  padding: 1.1rem 1.35rem;
  background: var(--surface);
  border-bottom: 1px solid var(--rule);
}

.bench-card-title {
  display: block;
  margin: 0;
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.32;
}

.bench-sub {
  margin: 0.2rem 0 0;
  font-size: 0.8125rem;
  color: var(--muted);
}

.bench-win-strip {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1.35rem;
  background: var(--accent-soft);
  border-bottom: 1px solid var(--rule);
}

.win-dot {
  width: 7px;
  height: 7px;
  border-radius: 6px;
  background: var(--accent);
  flex-shrink: 0;
}

.bench-win-badge {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--accent);
}

.bar-chart {
  padding: 1.15rem 1.35rem;
  display: grid;
  gap: 0.95rem;
}

.bar-item {
  display: grid;
  gap: 0.38rem;
}

.bar-meta {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
  font-size: 0.875rem;
}

.bar-title-wrap {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  min-width: 0;
  flex-wrap: wrap;
}

.bar-name {
  font-weight: 600;
  color: var(--ink);
}

.bar-item.is-ours .bar-name {
  color: var(--accent);
  font-weight: 700;
}

.bar-note {
  font-size: 0.8125rem;
  color: var(--muted);
}

.bar-stats {
  display: flex;
  align-items: baseline;
  gap: 0.55rem;
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.bar-tok {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--ink);
}

.bar-item.is-ours .bar-tok {
  color: var(--accent);
}

.bar-ms {
  font-size: 0.8125rem;
  color: var(--muted);
}

.bar-track {
  height: 1.15rem;
  background-color: var(--ground);
  background-image: linear-gradient(
    90deg,
    transparent calc(25% - 1px),
    rgba(159, 178, 194, 0.45) 25%,
    transparent calc(25% + 1px),
    transparent calc(50% - 1px),
    rgba(159, 178, 194, 0.45) 50%,
    transparent calc(50% + 1px),
    transparent calc(75% - 1px),
    rgba(159, 178, 194, 0.45) 75%,
    transparent calc(75% + 1px)
  );
  border-radius: 6px;
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  background: var(--bar-neutral);
  border-radius: 6px;
  min-width: 6px;
  transition: width 220ms cubic-bezier(0.22, 1, 0.36, 1);
}

.bar-item.is-ours .bar-fill {
  background: var(--accent);
}

.bench-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
  padding: 0.8rem 1.35rem;
  background: var(--surface);
  border-top: 1px solid var(--rule);
  font-size: 0.8125rem;
  color: var(--muted);
}

.bench-foot code {
  font-size: 0.8125rem;
}

.bench-foot a {
  font-weight: 600;
}

/* Content Sections */
.section-block {
  padding-top: 4.5rem;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

h2 {
  margin: 0 0 0.55rem;
  font-size: clamp(1.5rem, 2.3vw, 1.875rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 700;
  text-wrap: balance;
}

h3 {
  margin: 0 0 0.45rem;
  font-size: 1.1875rem;
  line-height: 1.32;
  font-weight: 700;
  text-wrap: balance;
}

p,
li,
dd {
  max-width: 66ch;
  text-wrap: pretty;
}

.section-intro {
  margin: 0;
  color: var(--muted);
  max-width: 60ch;
}

/* Section 2: Interactive Workbench Ledger */
.workbench-ledger {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  gap: 1.5rem;
  padding: 1.35rem 1.5rem;
  background: var(--surface-strong);
  border: 1px solid var(--rule-strong);
  border-radius: 14px;
}

.workbench-code-col {
  background: var(--code-bg);
  color: var(--code-ink);
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.code-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem 1.1rem;
  background: var(--code-sub);
  border-bottom: 1px solid var(--code-border);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--code-ink);
}

.trace-code {
  margin: 0;
  padding: 0.85rem 0;
  background: var(--code-bg);
  color: var(--code-ink);
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 0.8125rem;
  line-height: 1.55;
  overflow-x: auto;
  white-space: normal;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.code-line {
  display: block;
  white-space: pre-wrap;
  overflow-wrap: break-word;
  padding: 0.04rem 1.1rem 0.04rem 2.65rem;
  position: relative;
  border-left: 2px solid transparent;
  transition: background-color 120ms ease;
}

.code-line::before {
  content: attr(data-line);
  position: absolute;
  left: 0.55rem;
  width: 1.45rem;
  text-align: right;
  color: var(--bar-neutral);
  font-size: 0.8125rem;
  user-select: none;
}

.code-line.is-highlighted {
  background: rgba(15, 122, 98, 0.24);
  border-left-color: #6bc2ad;
}

/* Syntax Highlighting Tokens on #101c26 */
.tok-comment {
  color: var(--rule-strong);
  font-style: italic;
}

.tok-kw {
  color: #f0a68b;
  font-weight: 600;
}

.tok-fn {
  color: var(--tok-fn);
}

.tok-str {
  color: #6bc2ad;
}

.tok-num {
  color: var(--tok-num);
  font-weight: 600;
}

/* Telemetry & Mission Control Stage */
.workbench-telemetry-col {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding-left: 0.2rem;
}

.telemetry-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--rule);
  font-size: 0.9375rem;
  font-weight: 700;
}

.guard-badge {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 0.8125rem;
  padding: 0.2rem 0.55rem;
  border-radius: 6px;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
}

.mission-stage {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--rule);
}

.mission-svg {
  display: block;
  width: 100%;
  height: auto;
}

.mission-svg .stage-cursor {
  cursor: pointer;
  opacity: 0.62;
  transition: opacity 150ms ease;
}

.mission-svg .stage-cursor.is-active {
  opacity: 1;
}

.mission-svg .cursor-ring {
  opacity: 0.25;
  transition: opacity 150ms ease, stroke-width 150ms ease;
}

.mission-svg .stage-cursor.is-active .cursor-ring {
  opacity: 1;
  stroke-width: 2.2px;
}

.mission-svg .stage-guard-bar .guard-bar-rect {
  transition: fill 150ms ease, stroke 150ms ease;
}

.mission-svg .stage-guard-bar.is-active .guard-bar-rect {
  fill: var(--accent-soft);
  stroke: var(--accent);
  stroke-width: 1.5px;
}

.cursor-list {
  display: grid;
  flex: 1;
}

.cursor-row {
  padding: 0.58rem 0.5rem;
  border-bottom: 1px solid var(--rule);
  border-left: 2px solid transparent;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 0.8125rem;
  cursor: pointer;
  transition: background-color 120ms ease, border-color 120ms ease;
}

.cursor-row:hover,
.cursor-row.is-active {
  background: var(--surface);
}

.cursor-row.is-active {
  border-left-color: var(--accent);
}

.cursor-row-head {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  margin-bottom: 0.12rem;
}

.cursor-dot {
  width: 8px;
  height: 8px;
  border-radius: 6px;
  flex-shrink: 0;
  background: var(--accent);
}

.cursor-dot.dot-0 {
  background: var(--accent);
}

.cursor-dot.dot-1 {
  background: var(--ocean);
}

.cursor-dot.dot-2 {
  background: var(--signal);
}

.cursor-dot.dot-3 {
  background: var(--ink);
}

.cursor-row strong {
  color: var(--ink);
}

.cursor-row.is-active strong {
  color: var(--accent);
}

.cursor-row .cursor-pos {
  display: block;
  padding-left: 0.95rem;
  font-size: 0.8125rem;
  color: var(--muted);
}

.telemetry-summary {
  padding-top: 0.75rem;
  font-size: 0.875rem;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.trace-saving {
  color: var(--signal);
  font-weight: 700;
}

/* Section 3: Architectural Pillars & Material Boundaries */
.arch-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 1.5rem;
  background: var(--surface-strong);
  border: 1px solid var(--rule-strong);
  border-radius: 14px;
  overflow: hidden;
}

.arch-col {
  padding: 1.4rem 1.5rem 1.5rem;
}

.arch-col + .arch-col {
  border-left: 1px solid var(--rule);
}

.arch-schematic {
  display: block;
  width: 100%;
  height: auto;
  margin-bottom: 1rem;
  padding-bottom: 0.9rem;
  border-bottom: 1px solid var(--rule);
}

.arch-lead {
  margin: 0 0 0.9rem;
  font-size: 0.9375rem;
  color: var(--muted);
}

.arch-col ul {
  margin: 0;
  padding-left: 1.15rem;
}

.arch-col li {
  margin: 0.5rem 0;
  font-size: 0.9375rem;
  color: var(--ink);
}

.boundary-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 1.25rem 0 0;
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: 12px;
  overflow: hidden;
}

.boundary-cell {
  padding: 1.15rem 1.35rem;
}

.boundary-cell + .boundary-cell {
  border-left: 1px solid var(--rule);
}

.boundary-cell dt {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 0.25rem;
}

.boundary-cell dd {
  margin: 0;
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.5;
}

/* Section 4: Quick Start Config */
.config-box {
  background: var(--code-bg);
  border: 1px solid var(--rule-strong);
  border-radius: 14px;
  overflow: hidden;
}

/* Footer */
.site-footer {
  margin-top: 5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.9375rem;
  color: var(--muted);
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 1.35rem;
  flex-wrap: wrap;
}

@media (max-width: 960px) {
  .hero-grid,
  .workbench-ledger,
  .arch-grid,
  .boundary-strip {
    grid-template-columns: minmax(0, 1fr);
  }

  .workbench-telemetry-col {
    padding-left: 0;
  }

  .arch-col + .arch-col,
  .boundary-cell + .boundary-cell {
    border-left: none;
    border-top: 1px solid var(--rule);
  }
}

@media (max-width: 600px) {
  .page-shell {
    width: calc(100% - 2.25rem);
    padding-top: 1.25rem;
  }

  .top-bar {
    margin-bottom: 2.25rem;
  }

  .workbench-ledger {
    padding: 1rem;
  }

  .code-line {
    padding: 0.04rem 0.65rem 0.04rem 2.15rem;
  }

  .code-line::before {
    left: 0.35rem;
    width: 1.35rem;
  }
}