:root {
  color-scheme: light;
  --ink: #0f1720;
  --ink-2: #253040;
  --ink-3: #566173;
  --paper: #f8faf7;
  --paper-2: #eef3f1;
  --paper-3: #e5ece9;
  --surface: #ffffff;
  --line: #d8e0de;
  --blue: #1556c0;
  --blue-2: #2b72ff;
  --copper: #a76028;
  --green: #0b7a62;
  --dark: #101820;
  --dark-2: #162230;
  --dark-3: #213142;
  --light: #f8faf7;
  --focus: #2b72ff;
  --shadow: 0 24px 70px rgba(16, 24, 32, 0.12);
  --radius: 8px;
  --max: 1180px;
  --font: "Plus Jakarta Sans", Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

body.menu-open {
  overflow: hidden;
}

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

a {
  color: inherit;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 4px;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 1000;
  padding: 0.75rem 1rem;
  background: var(--ink);
  color: var(--light);
  text-decoration: none;
  border-radius: var(--radius);
}

.skip-link:focus {
  top: 1rem;
}

.site-shell {
  min-height: 100dvh;
  position: relative;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid rgba(216, 224, 222, 0.84);
  background: rgba(248, 250, 247, 0.88);
  backdrop-filter: blur(18px);
}

.nav {
  width: min(var(--max), calc(100% - 40px));
  min-height: 76px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  min-height: 44px;
}

.brand img {
  width: 184px;
  height: auto;
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.nav-links a,
.mobile-toggle {
  min-height: 44px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--ink-2);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 700;
}

.nav-links a {
  padding: 0 0.85rem;
  transition: background 180ms ease, color 180ms ease, transform 180ms ease;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  background: var(--paper-2);
  color: var(--blue);
}

.nav-links a:active {
  transform: scale(0.98);
}

.nav-cta {
  background: var(--ink);
  color: var(--light) !important;
  border: 1px solid var(--ink);
}

.nav-cta:hover {
  background: var(--blue) !important;
  border-color: var(--blue);
}

.mobile-toggle {
  display: none;
  width: 48px;
  border: 1px solid var(--line);
  background: var(--surface);
  cursor: pointer;
}

.mobile-toggle span,
.mobile-toggle::before,
.mobile-toggle::after {
  width: 18px;
  height: 2px;
  background: var(--ink);
  display: block;
  border-radius: 2px;
  transition: transform 180ms ease, opacity 180ms ease;
}

.mobile-toggle::before,
.mobile-toggle::after {
  content: "";
  position: absolute;
}

.mobile-toggle {
  position: relative;
}

.mobile-toggle::before {
  transform: translateY(-6px);
}

.mobile-toggle::after {
  transform: translateY(6px);
}

.mobile-toggle[aria-expanded="true"] span {
  opacity: 0;
}

.mobile-toggle[aria-expanded="true"]::before {
  transform: rotate(45deg);
}

.mobile-toggle[aria-expanded="true"]::after {
  transform: rotate(-45deg);
}

.section {
  position: relative;
  padding: clamp(76px, 9vw, 132px) 0;
}

.section.tight {
  padding: clamp(54px, 7vw, 88px) 0;
}

.wrap {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.hero {
  min-height: calc(100dvh - 76px);
  display: grid;
  align-items: center;
  overflow: hidden;
  padding: clamp(44px, 7vw, 84px) 0 clamp(40px, 6vw, 76px);
  background:
    linear-gradient(90deg, rgba(21, 86, 192, 0.08), transparent 32%),
    linear-gradient(180deg, var(--paper), #eef3f1 78%, #e6ece8);
}

.hero-inner {
  width: min(1320px, calc(100% - 40px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(360px, 1.05fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}

.hero-copy {
  position: relative;
  z-index: 2;
}

.eyebrow,
.data-label {
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0;
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--copper);
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
.page-title {
  font-size: clamp(3rem, 7vw, 6.8rem);
  line-height: 0.94;
  letter-spacing: 0;
  margin-bottom: 1.4rem;
  max-width: 10.4ch;
}

.hero-copy .lead {
  max-width: 620px;
  color: var(--ink-2);
  font-size: clamp(1.08rem, 1.6vw, 1.28rem);
}

.hero-actions,
.section-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2rem;
}

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.82rem 1.1rem;
  border-radius: 999px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--light);
  text-decoration: none;
  font-weight: 800;
  line-height: 1.2;
  transition: transform 180ms ease, background 180ms ease, border 180ms ease, color 180ms ease;
}

.button svg {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
}

.button:hover {
  transform: translateY(-2px);
  background: var(--blue);
  border-color: var(--blue);
}

.button.secondary {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}

.button.secondary:hover {
  color: var(--blue);
  background: var(--surface);
  border-color: rgba(21, 86, 192, 0.28);
}

.hero-proof {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(2rem, 5vw, 4rem);
  border: 1px solid var(--line);
  background: var(--line);
  max-width: 680px;
}

.proof-item {
  min-height: 104px;
  background: rgba(255, 255, 255, 0.72);
  padding: 1rem;
}

.proof-item strong {
  display: block;
  font-size: 0.98rem;
  line-height: 1.35;
}

.proof-item span {
  display: block;
  margin-top: 0.35rem;
  color: var(--ink-3);
  font-size: 0.88rem;
  line-height: 1.45;
}

.hero-visual {
  position: relative;
  min-height: clamp(470px, 58vw, 720px);
  border-left: 1px solid rgba(15, 23, 32, 0.12);
  padding-left: clamp(1rem, 3vw, 3rem);
}

.strata-frame {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

#strataCanvas {
  width: 100%;
  height: 100%;
  display: block;
}

.terminal-panel {
  position: absolute;
  right: clamp(0px, 2vw, 24px);
  bottom: clamp(16px, 5vw, 62px);
  width: min(420px, 88%);
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(16, 24, 32, 0.92);
  color: #f8faf7;
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.terminal-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  color: #cbd6dc;
  font-family: var(--mono);
  font-size: 0.74rem;
}

.terminal-grid {
  display: grid;
  gap: 1px;
  background: rgba(255, 255, 255, 0.1);
}

.signal-row {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  background: var(--dark);
  min-height: 58px;
}

.signal-row span,
.signal-row strong {
  display: flex;
  align-items: center;
  padding: 0.8rem 1rem;
}

.signal-row span {
  color: #cbd6dc;
}

.signal-row strong {
  color: #ffffff;
  font-family: var(--mono);
  font-size: 0.82rem;
  justify-content: flex-end;
}

.live-strip {
  position: absolute;
  top: clamp(24px, 7vw, 88px);
  left: clamp(0px, 2vw, 30px);
  width: min(520px, 88%);
  border: 1px solid rgba(15, 23, 32, 0.14);
  background: rgba(248, 250, 247, 0.78);
  backdrop-filter: blur(14px);
  box-shadow: 0 18px 56px rgba(16, 24, 32, 0.1);
}

.live-strip header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 1rem;
  border-bottom: 1px solid rgba(15, 23, 32, 0.1);
}

.live-strip header span {
  color: var(--ink-3);
  font-size: 0.86rem;
  font-weight: 700;
}

.live-map {
  height: 190px;
  padding: 1rem;
}

.live-map svg {
  width: 100%;
  height: 100%;
  display: block;
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(320px, 0.5fr);
  gap: clamp(1.5rem, 5vw, 5rem);
  align-items: end;
  margin-bottom: clamp(2rem, 5vw, 4rem);
}

.section-head h2,
.feature-band h2,
.page-hero h1 {
  font-size: clamp(2rem, 4.4vw, 4.6rem);
  line-height: 1;
  letter-spacing: 0;
  margin-bottom: 0;
}

.section-head p,
.feature-band p,
.page-hero .lead {
  color: var(--ink-2);
  font-size: 1.04rem;
}

.dark-section {
  background: var(--dark);
  color: var(--light);
}

.dark-section .section-head p,
.dark-section .muted,
.dark-section .text-block p,
.dark-section .capability p,
.dark-section .timeline p {
  color: #c8d2d8;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.capability,
.use-case,
.principle,
.plain-card {
  background: var(--surface);
  padding: clamp(1.3rem, 2.2vw, 2rem);
  min-height: 260px;
  position: relative;
  overflow: hidden;
}

.capability::after,
.use-case::after,
.principle::after,
.plain-card::after {
  content: "";
  position: absolute;
  inset: auto 1.2rem 1.2rem auto;
  width: 54px;
  height: 1px;
  background: var(--copper);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 220ms ease;
}

.capability:hover::after,
.use-case:hover::after,
.principle:hover::after,
.plain-card:hover::after {
  transform: scaleX(1);
}

.capability h3,
.use-case h3,
.principle h3,
.plain-card h3 {
  font-size: 1.35rem;
  line-height: 1.18;
  margin-bottom: 0.8rem;
}

.capability p,
.use-case p,
.principle p,
.plain-card p {
  color: var(--ink-3);
  margin-bottom: 0;
}

.capability .data-label,
.use-case .data-label,
.principle .data-label,
.plain-card .data-label {
  display: block;
  margin-bottom: 1.35rem;
}

.dark-grid {
  border-color: rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.1);
}

.dark-grid .capability,
.dark-grid .plain-card,
.dark-grid .principle {
  background: var(--dark-2);
  color: var(--light);
}

.dark-grid .capability p,
.dark-grid .plain-card p,
.dark-grid .principle p {
  color: #c8d2d8;
}

.architecture {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.62fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}

.architecture-map {
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: #0b1118;
  min-height: 540px;
  position: relative;
  overflow: hidden;
}

.architecture-map svg {
  width: 100%;
  height: 100%;
  min-height: 540px;
  display: block;
}

.map-caption {
  position: absolute;
  left: 1rem;
  bottom: 1rem;
  color: #aebcc6;
  font-family: var(--mono);
  font-size: 0.76rem;
}

.text-block h2 {
  font-size: clamp(2rem, 4vw, 4rem);
  line-height: 1;
  margin-bottom: 1rem;
}

.text-block p {
  color: var(--ink-2);
  font-size: 1.03rem;
}

.check-list {
  display: grid;
  gap: 0.85rem;
  margin: 1.6rem 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: 0.75rem;
  align-items: start;
}

.check-list li::before {
  content: "";
  width: 10px;
  height: 10px;
  border: 2px solid var(--copper);
  margin-top: 0.47rem;
  transform: rotate(45deg);
}

.feature-band {
  background: var(--surface);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.84fr) minmax(340px, 0.6fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}

.quote-panel {
  border: 1px solid var(--line);
  background: var(--paper);
  padding: clamp(1.4rem, 3vw, 2.4rem);
}

.quote-panel p {
  margin: 0;
  font-size: clamp(1.25rem, 2.4vw, 2rem);
  line-height: 1.25;
  color: var(--ink);
}

.quote-panel span {
  display: block;
  margin-top: 1.5rem;
  color: var(--ink-3);
  font-weight: 700;
}

.timeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.timeline article {
  background: var(--dark-2);
  padding: clamp(1.2rem, 2vw, 1.8rem);
  min-height: 280px;
}

.timeline .step {
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: #fff;
  font-family: var(--mono);
  margin-bottom: 1.5rem;
}

.timeline h3 {
  line-height: 1.2;
  margin-bottom: 0.8rem;
}

.cta-section {
  background: var(--ink);
  color: var(--light);
  overflow: hidden;
}

.cta-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(300px, 0.45fr);
  gap: clamp(2rem, 6vw, 6rem);
  align-items: center;
}

.cta-panel h2 {
  font-size: clamp(2.4rem, 5vw, 5rem);
  line-height: 0.98;
  margin-bottom: 1rem;
}

.cta-panel p {
  color: #c8d2d8;
  max-width: 670px;
}

.mail-card {
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.04);
  padding: 1.4rem;
}

.mail-card a {
  display: inline-flex;
  overflow-wrap: anywhere;
  color: #fff;
  font-size: clamp(1.2rem, 2vw, 1.7rem);
  font-weight: 800;
  text-decoration: none;
}

.mail-card a:hover {
  color: #9bbcff;
}

.page-hero {
  padding: clamp(70px, 9vw, 132px) 0 clamp(54px, 8vw, 104px);
  background:
    linear-gradient(120deg, rgba(21, 86, 192, 0.1), transparent 38%),
    linear-gradient(180deg, var(--paper), var(--paper-2));
  border-bottom: 1px solid var(--line);
}

.page-hero .wrap {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(300px, 0.46fr);
  gap: clamp(2rem, 6vw, 6rem);
  align-items: end;
}

.page-hero h1 {
  max-width: 840px;
  margin: 0 0 1.2rem;
}

.page-hero .lead {
  max-width: 700px;
}

.page-meta {
  border-left: 1px solid var(--line);
  padding-left: 1.3rem;
  color: var(--ink-3);
}

.system-stack {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.stack-row {
  display: grid;
  grid-template-columns: minmax(170px, 0.28fr) minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
}

.stack-row > * {
  background: var(--surface);
  padding: clamp(1.1rem, 2vw, 1.8rem);
}

.stack-row h3 {
  margin-bottom: 0;
  font-size: 1.1rem;
}

.stack-row p {
  margin-bottom: 0;
  color: var(--ink-3);
}

.dark-section .system-stack {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.12);
}

.dark-section .stack-row {
  background: rgba(255, 255, 255, 0.12);
}

.dark-section .stack-row > * {
  background: var(--dark-2);
}

.dark-section .stack-row h3 {
  color: var(--light);
}

.dark-section .stack-row p {
  color: #c8d2d8;
}

.method-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.58fr) minmax(0, 0.42fr);
  gap: 1px;
  border: 1px solid var(--line);
  background: var(--line);
}

.method-main,
.method-side {
  background: var(--surface);
  padding: clamp(1.4rem, 3vw, 2.7rem);
}

.method-main h2 {
  font-size: clamp(2rem, 3.8vw, 4.4rem);
  line-height: 1;
}

.method-side {
  display: grid;
  align-content: center;
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.68fr) minmax(320px, 0.42fr);
  gap: clamp(2rem, 6vw, 6rem);
  align-items: start;
}

.brief-list {
  counter-reset: brief;
  list-style: none;
  padding: 0;
  margin: 2rem 0 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.brief-list li {
  counter-increment: brief;
  background: var(--surface);
  padding: 1.1rem;
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 1rem;
}

.brief-list li::before {
  content: counter(brief, decimal-leading-zero);
  font-family: var(--mono);
  color: var(--copper);
  font-weight: 800;
}

.contact-card {
  position: sticky;
  top: 104px;
  border: 1px solid var(--line);
  background: var(--surface);
  padding: clamp(1.4rem, 3vw, 2.2rem);
  box-shadow: 0 18px 45px rgba(16, 24, 32, 0.08);
}

.contact-card h2 {
  font-size: clamp(1.7rem, 3vw, 2.6rem);
  line-height: 1.1;
}

.contact-card a {
  color: var(--blue);
  font-weight: 800;
  overflow-wrap: anywhere;
}

.footer {
  background: #0b1118;
  color: #c8d2d8;
  padding: 34px 0;
}

.footer .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer a {
  color: #fff;
  font-weight: 800;
  text-decoration: none;
}

.footer a:hover {
  color: #9bbcff;
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 520ms ease, transform 520ms ease;
}

.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

.path-draw {
  stroke-dasharray: var(--path-length, 1);
  stroke-dashoffset: var(--path-length, 1);
  transition: stroke-dashoffset 900ms ease;
}

.in-view .path-draw,
.path-draw.in-view {
  stroke-dashoffset: 0;
}

@media (max-width: 980px) {
  .mobile-toggle {
    display: inline-flex;
  }

  .nav-links {
    position: fixed;
    inset: 76px 0 auto 0;
    display: grid;
    align-content: start;
    gap: 0;
    padding: 1rem 20px 1.5rem;
    background: rgba(248, 250, 247, 0.98);
    border-bottom: 1px solid var(--line);
    transform: translateY(-120%);
    transition: transform 220ms ease;
    box-shadow: 0 24px 54px rgba(16, 24, 32, 0.12);
  }

  .nav-links.open {
    transform: translateY(0);
  }

  .nav-links a {
    border-radius: var(--radius);
    justify-content: flex-start;
    padding: 0.85rem 1rem;
  }

  .hero-inner,
  .section-head,
  .architecture,
  .split,
  .cta-panel,
  .page-hero .wrap,
  .contact-layout,
  .method-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-visual {
    border-left: 0;
    padding-left: 0;
    min-height: 560px;
  }

  .grid-3,
  .timeline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .contact-card {
    position: static;
  }
}

@media (max-width: 680px) {
  .nav,
  .wrap,
  .hero-inner {
    width: min(100% - 28px, var(--max));
  }

  .brand img {
    width: 156px;
  }

  h1,
  .page-title {
    font-size: clamp(2.7rem, 17vw, 4rem);
  }

  .hero-proof,
  .grid-2,
  .grid-3,
  .timeline,
  .stack-row {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    min-height: 520px;
  }

  .live-strip {
    width: 100%;
  }

  .terminal-panel {
    width: 100%;
    right: 0;
  }

  .signal-row {
    grid-template-columns: 1fr;
  }

  .signal-row strong {
    justify-content: flex-start;
    padding-top: 0;
  }

  .brief-list li {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}