/* Company Home (`/`) — the blueprint sheet.

   The Industry tokens and shared component layer live in the vendored
   design system (v0.4.0 made Industry the default). This file owns the page:
   the paper grid, the sheet measure, and every section. The source comp had
   no media queries; everything under `@media` here is this file's work. */

html { scroll-behavior: smooth; }

/* Theme-aware brand lockup (emitted in pairs by src/logo.js): show the ink
   wordmark on paper, the paper wordmark on the navy dark ground. */
.stl-logo--dark { display: none !important; }
[data-theme="dark"] .stl-logo--light { display: none !important; }
[data-theme="dark"] .stl-logo--dark { display: block !important; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]):not([data-theme="dark"]) .stl-logo--light { display: none !important; }
  :root:not([data-theme="light"]):not([data-theme="dark"]) .stl-logo--dark { display: block !important; }
}

/* Page-level chrome formerly scoped to [data-theme="industry"]. */
.home a { color: inherit; text-decoration: none; }
.home .wrap {
  width: 100%;
  padding-inline: var(--sheet-gutter, 20px);
  box-sizing: border-box;
}
.home .lp-link { color: var(--text-muted); font-weight: 500; }
.home .lp-link:hover { color: var(--color-accent); }
/* flex: none — the wordmark is a fixed lockup and must never be squeezed by a
   tight nav row. */
.home .stl-logo { display: block; height: 19px; width: auto; flex: none; }
.home .btn-ghost {
  border-color: var(--color-divider);
  padding-inline: var(--space-4);
}
.home .btn-ghost:hover:not(:disabled) {
  background: color-mix(in srgb, var(--color-accent) 10%, transparent);
  border-color: var(--color-accent);
}

.home {
  --sheet-max: 1180px;
  --sheet-gutter: max(20px, calc((100% - var(--sheet-max)) / 2));
  --rule: 1px solid var(--color-divider);
  position: relative;
  isolation: isolate;
  overflow-x: hidden;
  /* Drafting paper: a 24px field with a 120px major grid over it. */
  background-image:
    repeating-linear-gradient(0deg, color-mix(in srgb, var(--color-text) 5%, transparent) 0 1px, transparent 1px 24px),
    repeating-linear-gradient(90deg, color-mix(in srgb, var(--color-text) 5%, transparent) 0 1px, transparent 1px 24px),
    repeating-linear-gradient(0deg, color-mix(in srgb, var(--color-text) 9%, transparent) 0 1px, transparent 1px 120px),
    repeating-linear-gradient(90deg, color-mix(in srgb, var(--color-text) 9%, transparent) 0 1px, transparent 1px 120px);
}

.sheet {
  padding-inline: var(--sheet-gutter);
}

/* The one authored entrance: content rises a short distance on an exponential
   ease-out, already legible before it settles. */
.home .reveal {
  transform: translateY(14px);
  transition:
    opacity 600ms cubic-bezier(0.2, 0.7, 0.2, 1),
    transform 600ms cubic-bezier(0.2, 0.7, 0.2, 1);
}

/* ══ nav ══════════════════════════════════════════════════════════════════ */

.home-top {
  position: sticky;
  top: 0;
  z-index: var(--z-overlay);
  background: color-mix(in srgb, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: var(--rule);
  transition: background var(--duration-hover) var(--ease-out), border-color var(--duration-hover) var(--ease-out);
}
.home-top.is-top {
  background: transparent;
  border-bottom-color: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}
.home-top-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: var(--space-6);
  height: 68px;
}
.home-top-inner > .stl-brand { justify-self: start; }
.home-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-6);
  grid-column: 2;
  white-space: nowrap;
}
.home-nav .lp-link { font-size: 0.9375rem; }
.home-top-cta { font-size: 0.875rem; }

/* ══ spec strip ═══════════════════════════════════════════════════════════ */

.spec-strip {
  display: flex;
  justify-content: space-between;
  gap: var(--space-6);
  padding: 9px var(--sheet-gutter);
  border-top: var(--rule);
  border-bottom: var(--rule);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-subtle);
  white-space: nowrap;
}

/* ══ hero ═════════════════════════════════════════════════════════════════ */

.hero {
  position: relative;
  padding: 96px 0 76px;
  text-align: center;
}
.hero-mark {
  position: absolute;
  color: var(--color-accent);
  opacity: 0.55;
  font-size: 19px;
  line-height: 1;
}
.hero-mark.tl { top: 16px; left: -28px; }
.hero-mark.tr { top: 16px; right: -28px; }
.hero-mark.bl { bottom: 16px; left: -28px; }
.hero-mark.br { bottom: 16px; right: -28px; }

.hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.75rem, 7.1vw, 5.25rem);
  line-height: 1.05;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  text-wrap: balance;
}
.hero h1 span { display: block; }
.hero h1 em { font-style: normal; color: var(--color-accent); }

.hero-lede {
  max-width: 54ch;
  margin: 24px auto 0;
  font-size: 1.0625rem;
  line-height: 1.55;
  color: var(--text-muted);
}
.hero-actions {
  display: flex;
  justify-content: center;
  gap: var(--space-3);
  margin-top: 28px;
}
.hero-actions .btn {
  font-size: 1rem;
  padding: 11px 22px;
}
.hero-arena { margin-top: 48px; }

/* ══ Fig. 00 — the playable arena ═════════════════════════════════════════ */

.ar {
  --ar-ink: var(--color-accent);
  /* The arena geometry is the content here, so it sits a step above the
     hairline weight the page rules use. */
  --ar-line: color-mix(in srgb, var(--color-text) 30%, transparent);
  position: relative;
  margin: 0;
  padding: 16px 20px 11px;
  border: var(--rule);
  background: var(--color-bg);
  text-align: left;
  cursor: crosshair;
}
.ar:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 3px; }
.ar-head,
.ar-label {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  font-family: var(--font-body);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 600;
}
.ar-head {
  font-size: 11px;
  color: var(--color-accent);
}
.ar-head [data-ar-live] { font-variant-numeric: tabular-nums; }
.ar-panels {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-top: 10px;
}
.ar-label {
  margin-bottom: 6px;
  font-size: 10.5px;
  color: var(--text-subtle);
}
.ar-svg { display: block; width: 100%; }
.ar-map { cursor: crosshair; touch-action: manipulation; }
.ar-trail-dot {
  fill: var(--color-accent-400);
  opacity: 0.7;
  transition: opacity 1.1s linear;
}
.ar-ring { fill: none; stroke: var(--ar-ink); stroke-width: 1.2; }
.ar-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
  margin-top: 10px;
  padding-top: 9px;
  border-top: var(--rule);
  font-size: 0.75rem;
  color: var(--text-subtle);
}
.ar-legend { line-height: 1.9; }
.ar-readout { white-space: nowrap; font-variant-numeric: tabular-nums; }
.ar-key {
  display: inline-block;
  padding: 0 5px;
  border: var(--rule);
  font-family: var(--font-mono);
  font-size: 10.5px;
  line-height: 17px;
  color: var(--color-text);
}

/* ══ vision ═══════════════════════════════════════════════════════════════ */

.vision { padding: 88px 0 84px; }
.vision-inner { text-align: center; }
.vision p {
  max-width: 42ch;
  margin: 0 auto;
  font-size: clamp(1.25rem, 2.2vw, 1.5625rem);
  line-height: 1.5;
}
.vision p + p { margin-top: 18px; }
/* The words carry the entrance here, so the block itself stays put. */
.vision .reveal.words { opacity: 1; transform: none; transition: none; }
.wd {
  display: inline-block;
  opacity: 0.15;
  transition: opacity 500ms var(--ease-out);
}
.in-view .wd { opacity: 1; }

/* ══ capability sections ══════════════════════════════════════════════════ */

.cap {
  display: grid;
  grid-template-columns: 6fr 5fr;
  gap: 72px;
  align-items: center;
  padding: 56px 0;
  border-top: var(--rule);
}
.cap.is-flipped { grid-template-columns: 5fr 6fr; }

.cap-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--color-accent);
}
.cap-copy h2 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.75rem, 3vw, 2.125rem);
  line-height: 1.08;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  text-wrap: balance;
}
.cap-copy p {
  max-width: 50ch;
  margin: 12px 0 0;
  font-size: 0.96875rem;
  line-height: 1.6;
  color: var(--text-muted);
}
.cap-link {
  display: inline-block;
  margin-top: 16px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-accent);
}
.cap-link:hover { color: var(--accent-hover); text-decoration: underline; }

.fig {
  margin: 0;
  padding: 24px 28px 26px;
  border: var(--rule);
  background: var(--color-bg);
}
.fig-head {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--color-accent);
}
.dg { display: block; width: 100%; margin-top: 20px; overflow: visible; }
.dg-line { fill: none; stroke: var(--color-divider); stroke-width: 1.1; }
.dg-hot { stroke: var(--color-accent); stroke-width: 1.4; }
.dg-dim { opacity: 0.75; }
.dg-text {
  fill: var(--text-subtle);
  stroke: none;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ══ teams — reversed field ═══════════════════════════════════════════════ */

/* The reversed field's ground is accent-900 in BOTH themes, so its ink is the
   constant paper primitive, never the theme's --color-bg (which IS accent-900
   in dark mode). */
.teams,
.closing {
  background: var(--color-accent-900);
  color: var(--color-neutral-100);
}
.teams { padding: 64px 0; }
.teams-head {
  margin: 0 0 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid color-mix(in srgb, var(--color-neutral-100) 18%, transparent);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.5rem, 2.6vw, 1.875rem);
  line-height: 1.1;
  letter-spacing: 0.01em;
  text-transform: uppercase;
}
.teams-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 32px;
}
.team-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 26px;
  border: 1px solid color-mix(in srgb, var(--color-neutral-100) 24%, transparent);
}
.team-kicker {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--color-accent-300);
}
.team-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.5rem;
  line-height: 1.1;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.team-card p {
  margin: 0;
  font-size: 0.90625rem;
  line-height: 1.6;
  color: color-mix(in srgb, var(--color-neutral-100) 76%, transparent);
}
.team-link {
  margin-top: auto;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-accent-300);
}
.team-link:hover { color: var(--color-neutral-100); text-decoration: underline; }

/* ══ company ══════════════════════════════════════════════════════════════ */

.company { padding: 72px 0; }
.company-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.75rem, 3vw, 2.125rem);
  line-height: 1.08;
  letter-spacing: 0.01em;
  text-transform: uppercase;
}
.company-head p {
  max-width: 62ch;
  margin: 14px 0 0;
  font-size: 0.96875rem;
  line-height: 1.6;
  color: var(--text-muted);
}

.company-team {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 32px;
  list-style: none;
  margin: 48px 0 0;
  padding: 0;
}
.person { display: flex; flex-direction: column; gap: 4px; }
/* Portraits stay square, framed, and marked like the other figures, but the
   photos themselves are shown untreated. */
.person-plate {
  position: relative;
  display: block;
  width: 100%;
  max-width: 168px;
  margin-bottom: 14px;
  border: var(--rule);
  color: var(--color-text);
}
.person-plate img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1;
  object-fit: cover;
}
.person-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.125rem;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  line-height: 1.15;
}
.person-title { font-size: 0.8125rem; color: var(--text-subtle); }

.hiring {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
  margin-top: 48px;
  padding: 26px 28px;
  border: var(--rule);
}
.hiring-copy { display: flex; flex-direction: column; gap: 6px; }
.hiring h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.5rem;
  line-height: 1.1;
  letter-spacing: 0.01em;
  text-transform: uppercase;
}
.hiring-loc { font-size: 0.8125rem; color: var(--text-subtle); }
.hiring .btn { flex: none; }

/* ══ closing ══════════════════════════════════════════════════════════════ */

.closing { padding: 56px 0; }
.closing-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
  flex-wrap: wrap;
}
.closing h2 {
  /* Optical alignment: pull the cap-height left off the gutter. */
  margin: 0 0 0 -0.052em;
  max-width: 24ch;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2rem, 4.2vw, 2.875rem);
  line-height: 1.05;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  text-wrap: balance;
}
.closing .btn {
  flex: none;
  font-size: 1rem;
  padding: 11px 22px;
  background: var(--color-neutral-100);
  border-color: var(--color-neutral-100);
  color: var(--color-accent-900);
}
.closing .btn:hover:not(:disabled) {
  background: var(--color-accent-200);
  border-color: var(--color-accent-200);
}

/* ══ footer ═══════════════════════════════════════════════════════════════ */

.home-footer {
  border-top: var(--rule);
  padding: 40px 0 44px;
  font-size: 0.8125rem;
}
.home-footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 32px;
}
.home-footer-blurb {
  max-width: 32ch;
  margin: 0;
  color: var(--text-muted);
  line-height: 1.6;
}
.home-footer-col { display: flex; flex-direction: column; gap: 6px; align-content: start; }
.home-footer-label {
  margin-bottom: 4px;
  font-family: var(--font-body);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--color-accent);
}
.home-footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
  padding-top: 20px;
  border-top: var(--rule);
  color: var(--text-subtle);
}

/* ══ responsive ═══════════════════════════════════════════════════════════ */

@media (min-width: 640px) {
  .home { --sheet-gutter: max(48px, calc((100% - var(--sheet-max)) / 2)); }
}

@media (max-width: 900px) {
  .hero { padding: 56px 0 48px; }
  .hero-mark { display: none; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 100%; }
  /* The arena is a keyboard-and-pointer instrument; below this it would be a
     pair of unreadable 160px panels. */
  .hero-arena { display: none; }

  .vision { padding: 56px 0; }
  .vision-inner { text-align: left; }
  .vision p { max-width: none; }

  .cap,
  .cap.is-flipped {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 40px 0;
  }
  /* Copy leads on every section once they stack, flipped or not. */
  .cap.is-flipped .cap-copy { order: -1; }
  .cap-copy p { max-width: none; }
  .fig { padding: 20px 22px 22px; }

  .teams { padding: 48px 0; }
  .teams-grid { grid-template-columns: 1fr; gap: 20px; }

  .company { padding: 56px 0; }
  .company-team { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px; margin-top: 36px; }
  .hiring { flex-direction: column; align-items: flex-start; gap: var(--space-5); }
  .hiring .btn { width: 100%; }

  .closing { padding: 44px 0; }
  .closing-inner { gap: 28px; }
  .closing .btn { width: 100%; }

  .home-footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .home-footer-bottom { flex-direction: column; align-items: flex-start; gap: var(--space-3); }
}

@media (max-width: 640px) {
  .home-top-inner { height: 60px; }
  /* The bar cannot hold wordmark + CTA + toggle without crushing the lockup;
     the CTA moves into the panel and the hero repeats it two screens up. */
  .home-top-cta { display: none; }
  /* Diagram labels are 9 user units, which lands under 8px once the figure
     shrinks to a phone column. */
  .dg-text { font-size: 12px; }
  /* Sheet metadata is reference, not navigation — the middle line goes first. */
  .spec-strip > :nth-child(2) { display: none; }
  .hero h1 { letter-spacing: 0; }
  .company-team { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
}

@media (prefers-reduced-motion: reduce) {
  .home .reveal { transform: none; transition: none; }
  .wd { opacity: 1; transition: none; }
}