:root {
  --ground: #16181b;
  --ground-raised: #1c1f23;
  --ground-soft: #22262b;
  --ink: #f4f6f7;
  --ink-soft: #d8dce0;
  --muted: #9ca5ae;
  --line: rgba(216, 220, 224, 0.14);
  --line-strong: rgba(216, 220, 224, 0.24);
  --amber: #d4a056;
  --amber-soft: rgba(212, 160, 86, 0.13);
  --cyan: #2ec4d4;
  --cyan-soft: rgba(46, 196, 212, 0.13);
  --teal-white: #dffcff;
  --success: #8bd8b2;
  --danger: #ff9e9e;
  --shadow: 0 26px 70px rgba(0, 0, 0, 0.34);
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 28px;
  --shell: min(1180px, calc(100% - 40px));
  --font-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background:
    radial-gradient(circle at 16% 8%, rgba(46, 196, 212, 0.08), transparent 24rem),
    radial-gradient(circle at 82% 14%, rgba(212, 160, 86, 0.075), transparent 22rem),
    var(--ground);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.018) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(to bottom, black, transparent 82%);
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  color: var(--teal-white);
}

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

button,
input,
select,
textarea {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

::selection {
  color: var(--ground);
  background: var(--cyan);
}

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

button:disabled {
  cursor: wait;
  opacity: 0.72;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 1000;
  padding: 10px 14px;
  color: var(--ground);
  background: var(--teal-white);
  border-radius: 8px;
  transform: translateY(-160%);
  transition: transform 180ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.shell {
  width: var(--shell);
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid transparent;
  background: rgba(22, 24, 27, 0.72);
  backdrop-filter: blur(18px);
  transition: border-color 180ms ease, background 180ms ease;
}

.site-header.is-scrolled {
  border-color: var(--line);
  background: rgba(22, 24, 27, 0.92);
}

.nav-wrap {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.18);
}

.brand-copy {
  display: grid;
  line-height: 1.05;
}

.brand-name {
  color: var(--ink);
  font-size: 0.98rem;
  font-weight: 800;
  letter-spacing: 0.13em;
}

.brand-tagline {
  margin-top: 5px;
  color: var(--muted);
  font-size: 0.69rem;
  font-weight: 650;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.primary-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
}

.primary-nav a {
  position: relative;
  padding: 9px 12px;
  color: var(--ink-soft);
  border-radius: 9px;
  font-size: 0.9rem;
  font-weight: 650;
}

.primary-nav a:hover,
.primary-nav a[aria-current="page"] {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.045);
}

.primary-nav a[aria-current="page"]::after {
  content: "";
  position: absolute;
  right: 12px;
  bottom: 5px;
  left: 12px;
  height: 1px;
  background: var(--cyan);
}

.nav-cta {
  margin-left: 8px;
  border: 1px solid rgba(46, 196, 212, 0.38) !important;
  background: var(--cyan-soft) !important;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 11px;
  cursor: pointer;
}

.nav-toggle span,
.nav-toggle::before,
.nav-toggle::after {
  display: block;
  width: 20px;
  height: 1.5px;
  margin-inline: auto;
  background: currentColor;
  content: "";
  transition: transform 180ms ease, opacity 180ms ease;
}

.nav-toggle span {
  margin-block: 5px;
}

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

.nav-toggle[aria-expanded="true"]::before {
  transform: translateY(6.5px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"]::after {
  transform: translateY(-6.5px) rotate(-45deg);
}

main {
  overflow: clip;
}

.hero {
  position: relative;
  padding: 92px 0 74px;
}

.hero.compact {
  padding: 74px 0 48px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(420px, 0.94fr);
  align-items: center;
  gap: 70px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 20px;
  color: var(--amber);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.eyebrow::before {
  width: 26px;
  height: 1px;
  background: currentColor;
  content: "";
}

.hero h1,
.page-title {
  max-width: 930px;
  margin: 0;
  color: var(--ink);
  font-size: clamp(3.2rem, 7.2vw, 6.75rem);
  font-weight: 780;
  letter-spacing: -0.065em;
  line-height: 0.97;
}

.hero h1 .accent,
.page-title .accent {
  color: var(--cyan);
}

.hero-lead,
.page-lead {
  max-width: 720px;
  margin: 28px 0 0;
  color: var(--ink-soft);
  font-size: clamp(1.04rem, 1.7vw, 1.24rem);
  line-height: 1.65;
}

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

.hero-actions,
.section-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 18px;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.035);
  font-size: 0.92rem;
  font-weight: 760;
  letter-spacing: -0.01em;
  cursor: pointer;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease, box-shadow 160ms ease;
}

.button::after {
  margin-left: 10px;
  color: currentColor;
  content: "↗";
  font-size: 0.95em;
}

.button:hover {
  color: var(--ink);
  border-color: rgba(216, 220, 224, 0.44);
  background: rgba(255, 255, 255, 0.07);
  transform: translateY(-1px);
}

.button.primary {
  color: #0f181a;
  border-color: var(--cyan);
  background: var(--cyan);
  box-shadow: 0 16px 40px rgba(46, 196, 212, 0.15);
}

.button.primary:hover {
  background: #59d2de;
  border-color: #59d2de;
  box-shadow: 0 20px 44px rgba(46, 196, 212, 0.22);
}

.button.amber {
  color: #1e1810;
  border-color: var(--amber);
  background: var(--amber);
}

.button.text-link {
  min-height: auto;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
}

.button.text-link:hover {
  background: transparent;
}

.button.text-link::after {
  content: "→";
}

.hero-note {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  max-width: 610px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.hero-note::before {
  flex: 0 0 auto;
  width: 7px;
  height: 7px;
  margin-top: 8px;
  border-radius: 999px;
  background: var(--success);
  box-shadow: 0 0 18px rgba(139, 216, 178, 0.48);
  content: "";
}

.hero-visual {
  position: relative;
}

.flow-panel {
  position: relative;
  min-height: 565px;
  padding: 22px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.012)),
    rgba(20, 22, 25, 0.86);
  box-shadow: var(--shadow);
}

.flow-panel::before {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, transparent 49.8%, rgba(255, 255, 255, 0.045) 50%, transparent 50.2%),
    linear-gradient(transparent 49.8%, rgba(255, 255, 255, 0.035) 50%, transparent 50.2%);
  background-size: 92px 92px;
  opacity: 0.4;
  content: "";
}

.flow-topline {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 2px 2px 18px;
  border-bottom: 1px solid var(--line);
}

.flow-topline span:first-child {
  color: var(--ink-soft);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.live-indicator {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--success);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.live-indicator::before {
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: currentColor;
  box-shadow: 0 0 16px currentColor;
  content: "";
}

.flow-map {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  padding: 24px 0 0;
}

.flow-node {
  position: relative;
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  min-height: 78px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(28, 31, 35, 0.88);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.16);
}

.flow-node:not(:last-child)::after {
  position: absolute;
  bottom: -15px;
  left: 38px;
  z-index: 3;
  width: 1px;
  height: 15px;
  background: linear-gradient(var(--cyan), var(--amber));
  content: "";
  animation: railPulse 2.8s linear infinite;
}

.node-icon {
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  color: var(--cyan);
  border: 1px solid rgba(46, 196, 212, 0.28);
  border-radius: 12px;
  background: var(--cyan-soft);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 800;
}

.flow-node:nth-child(even) .node-icon {
  color: var(--amber);
  border-color: rgba(212, 160, 86, 0.32);
  background: var(--amber-soft);
}

.node-copy strong {
  display: block;
  color: var(--ink);
  font-size: 0.9rem;
}

.node-copy span {
  display: block;
  margin-top: 2px;
  color: var(--muted);
  font-size: 0.76rem;
  line-height: 1.4;
}

.node-state {
  color: var(--success);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.flow-caption {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  line-height: 1.5;
}

@keyframes railPulse {
  0%, 100% { opacity: 0.34; }
  50% { opacity: 1; box-shadow: 0 0 14px rgba(46, 196, 212, 0.6); }
}

.trust-strip {
  padding: 22px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.018);
}

.trust-items {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0;
}

.trust-item {
  display: grid;
  min-height: 58px;
  padding: 0 22px;
  place-items: center;
  color: var(--ink-soft);
  border-right: 1px solid var(--line);
  font-size: 0.78rem;
  font-weight: 760;
  letter-spacing: 0.035em;
  text-align: center;
  text-transform: uppercase;
}

.trust-item:last-child {
  border-right: 0;
}

.section {
  position: relative;
  padding: 104px 0;
}

.section.tight {
  padding: 76px 0;
}

.section.border-top {
  border-top: 1px solid var(--line);
}

.section.tint {
  background:
    radial-gradient(circle at 74% 34%, rgba(46, 196, 212, 0.065), transparent 28rem),
    rgba(255, 255, 255, 0.012);
  border-block: 1px solid var(--line);
}

.section.amber-tint {
  background:
    radial-gradient(circle at 24% 28%, rgba(212, 160, 86, 0.07), transparent 30rem),
    rgba(255, 255, 255, 0.012);
  border-block: 1px solid var(--line);
}

.section-grid {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  align-items: start;
  gap: 80px;
}

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

.section-header {
  max-width: 760px;
  margin-bottom: 42px;
}

.section-header.centered {
  margin-inline: auto;
  text-align: center;
}

.kicker {
  margin: 0 0 14px;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.section h2,
.section-heading {
  margin: 0;
  color: var(--ink);
  font-size: clamp(2rem, 4.4vw, 4.1rem);
  font-weight: 760;
  letter-spacing: -0.052em;
  line-height: 1.05;
}

.section h3 {
  margin: 0;
  color: var(--ink);
  font-size: 1.18rem;
  letter-spacing: -0.022em;
  line-height: 1.3;
}

.section-intro {
  max-width: 700px;
  margin: 22px 0 0;
  color: var(--ink-soft);
  font-size: 1.03rem;
}

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

.cards-3,
.cards-4,
.capability-grid,
.partner-grid,
.metric-grid {
  display: grid;
  gap: 16px;
}

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

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

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

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

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

.stack-map {
  display: grid;
  gap: 18px;
}

.stack-core,
.stack-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(22, 24, 27, 0.76);
}

.stack-core {
  padding: 34px;
  border-color: rgba(46, 196, 212, 0.36);
  background:
    linear-gradient(110deg, rgba(46, 196, 212, 0.12), transparent 50%),
    rgba(22, 24, 27, 0.82);
}

.stack-core::after {
  position: absolute;
  right: 7%;
  bottom: -34px;
  width: 210px;
  height: 86px;
  border: 1px solid rgba(46, 196, 212, 0.18);
  border-radius: 50%;
  content: "";
}

.stack-core h3 {
  margin-top: 10px;
  font-size: clamp(1.7rem, 3vw, 2.8rem);
}

.stack-core p {
  max-width: 840px;
  margin: 12px 0 0;
  color: var(--ink-soft);
}

.stack-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.stack-card {
  padding: 26px;
}

.stack-card p {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.stack-label {
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.stack-card:nth-child(even) .stack-label {
  color: var(--amber);
}

.stack-card h3 {
  margin-top: 10px;
}

.api-contracts {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 18px;
}

.api-contracts span {
  display: inline-flex;
  padding: 5px 8px;
  color: var(--ink-soft);
  border: 1px solid var(--line);
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.025);
  font-family: var(--font-mono);
  font-size: 0.65rem;
}

.card,
.capability-card,
.partner-card,
.metric-card {
  position: relative;
  padding: 26px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.038), rgba(255, 255, 255, 0.012));
}

.card::before,
.capability-card::before,
.partner-card::before {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(46, 196, 212, 0.56), transparent);
  opacity: 0;
  content: "";
  transition: opacity 180ms ease;
}

.card:hover::before,
.capability-card:hover::before,
.partner-card:hover::before {
  opacity: 1;
}

.card-number,
.capability-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  margin-bottom: 22px;
  color: var(--cyan);
  border: 1px solid rgba(46, 196, 212, 0.28);
  border-radius: 10px;
  background: var(--cyan-soft);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 800;
}

.card:nth-child(even) .card-number,
.capability-card:nth-child(even) .capability-number {
  color: var(--amber);
  border-color: rgba(212, 160, 86, 0.28);
  background: var(--amber-soft);
}

.card p,
.capability-card p,
.partner-card p {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 0.91rem;
}

.role-stage {
  display: block;
  margin: -10px 0 10px;
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.card ul,
.capability-card ul,
.partner-card ul,
.check-list,
.boundary-list,
.plain-list {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.card li,
.capability-card li,
.partner-card li,
.check-list li,
.boundary-list li,
.plain-list li {
  position: relative;
  margin-top: 10px;
  padding-left: 19px;
  color: var(--ink-soft);
  font-size: 0.86rem;
}

.card li::before,
.capability-card li::before,
.partner-card li::before,
.check-list li::before,
.boundary-list li::before,
.plain-list li::before {
  position: absolute;
  top: 0.72em;
  left: 0;
  width: 7px;
  height: 1px;
  background: var(--cyan);
  content: "";
}

.card li:first-child,
.capability-card li:first-child,
.partner-card li:first-child,
.check-list li:first-child,
.boundary-list li:first-child,
.plain-list li:first-child {
  margin-top: 0;
}

.statement-panel {
  padding: 42px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(120deg, rgba(46, 196, 212, 0.09), transparent 46%),
    linear-gradient(300deg, rgba(212, 160, 86, 0.08), transparent 42%),
    var(--ground-raised);
  box-shadow: var(--shadow);
}

.statement-panel blockquote {
  margin: 0;
  color: var(--ink);
  font-size: clamp(1.75rem, 3.2vw, 3.2rem);
  font-weight: 700;
  letter-spacing: -0.048em;
  line-height: 1.18;
}

.statement-panel footer {
  margin-top: 24px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.architecture {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 44px;
}

.arch-layer {
  position: relative;
  min-height: 258px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.024);
}

.arch-layer + .arch-layer::before {
  position: absolute;
  top: 50%;
  left: -15px;
  width: 15px;
  height: 1px;
  background: linear-gradient(90deg, var(--amber), var(--cyan));
  content: "";
}

.arch-label {
  display: inline-flex;
  padding: 5px 8px;
  color: var(--cyan);
  border: 1px solid rgba(46, 196, 212, 0.25);
  border-radius: 7px;
  background: var(--cyan-soft);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.arch-layer:nth-child(even) .arch-label {
  color: var(--amber);
  border-color: rgba(212, 160, 86, 0.25);
  background: var(--amber-soft);
}

.arch-layer h3 {
  margin-top: 20px;
}

.arch-layer p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.arch-layer ul {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.arch-layer li {
  margin-top: 9px;
  color: var(--ink-soft);
  font-size: 0.78rem;
}

.arch-layer li::before {
  margin-right: 8px;
  color: var(--cyan);
  content: "—";
}

.boundary-table-wrap {
  margin-top: 36px;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.018);
}

.boundary-table {
  width: 100%;
  min-width: 740px;
  border-collapse: collapse;
}

.boundary-table th,
.boundary-table td {
  padding: 20px 22px;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
  text-align: left;
}

.boundary-table tr:last-child th,
.boundary-table tr:last-child td {
  border-bottom: 0;
}

.boundary-table th {
  width: 23%;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.02);
  font-size: 0.85rem;
  letter-spacing: -0.01em;
}

.boundary-table td {
  color: var(--ink-soft);
  font-size: 0.88rem;
}

.boundary-table td:last-child {
  color: var(--muted);
}

.workflow {
  position: relative;
  display: grid;
  gap: 0;
  margin-top: 34px;
}

.workflow-step {
  position: relative;
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 22px;
  padding: 0 0 30px;
}

.workflow-step:last-child {
  padding-bottom: 0;
}

.workflow-step::before {
  position: absolute;
  top: 44px;
  bottom: -1px;
  left: 35px;
  width: 1px;
  background: var(--line-strong);
  content: "";
}

.workflow-step:last-child::before {
  display: none;
}

.workflow-index {
  position: relative;
  z-index: 2;
  display: grid;
  width: 72px;
  height: 72px;
  place-items: center;
  color: var(--cyan);
  border: 1px solid rgba(46, 196, 212, 0.3);
  border-radius: 16px;
  background: var(--ground-raised);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 800;
}

.workflow-step:nth-child(even) .workflow-index {
  color: var(--amber);
  border-color: rgba(212, 160, 86, 0.3);
}

.workflow-copy {
  padding-top: 7px;
}

.workflow-copy p {
  max-width: 750px;
  margin: 8px 0 0;
  color: var(--muted);
}

.metric-card {
  min-height: 170px;
}

.metric-label {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.metric-value {
  display: block;
  margin-top: 16px;
  color: var(--ink);
  font-size: clamp(1.35rem, 2vw, 2rem);
  font-weight: 740;
  letter-spacing: -0.035em;
  line-height: 1.15;
}

.metric-note {
  display: block;
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.45;
}

.callout {
  display: grid;
  grid-template-columns: 1.35fr 0.65fr;
  align-items: center;
  gap: 48px;
  padding: 46px;
  border: 1px solid rgba(46, 196, 212, 0.22);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(112deg, rgba(46, 196, 212, 0.11), transparent 45%),
    linear-gradient(290deg, rgba(212, 160, 86, 0.08), transparent 38%),
    var(--ground-raised);
  box-shadow: var(--shadow);
}

.callout h2 {
  font-size: clamp(2rem, 4vw, 3.7rem);
}

.callout p {
  max-width: 720px;
  margin: 18px 0 0;
  color: var(--ink-soft);
}

.callout-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: stretch;
}

.callout-actions .button {
  width: 100%;
}

.notice {
  padding: 16px 18px;
  color: var(--ink-soft);
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.025);
  font-size: 0.82rem;
}

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

.notice.amber {
  border-color: rgba(212, 160, 86, 0.26);
  background: var(--amber-soft);
}

.notice.cyan {
  border-color: rgba(46, 196, 212, 0.26);
  background: var(--cyan-soft);
}

.form-shell {
  display: grid;
  grid-template-columns: 0.78fr 1.22fr;
  gap: 54px;
  padding: 44px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.018);
}

.form-intro h2 {
  font-size: clamp(2rem, 4vw, 3.4rem);
}

.form-intro p {
  margin: 18px 0 0;
  color: var(--muted);
}

.form-points {
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.form-points li {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 10px;
  margin-top: 14px;
  color: var(--ink-soft);
  font-size: 0.88rem;
}

.form-points li::before {
  display: grid;
  width: 24px;
  height: 24px;
  place-items: center;
  color: var(--cyan);
  border: 1px solid rgba(46, 196, 212, 0.25);
  border-radius: 7px;
  background: var(--cyan-soft);
  content: "✓";
  font-size: 0.72rem;
  font-weight: 900;
}

.contact-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.field {
  display: grid;
  gap: 7px;
}

.field.full {
  grid-column: 1 / -1;
}

.field label {
  color: var(--ink-soft);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.035em;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  color: var(--ink);
  border: 1px solid var(--line-strong);
  border-radius: 11px;
  outline: none;
  background: rgba(10, 12, 14, 0.38);
  transition: border-color 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.field input,
.field select {
  min-height: 48px;
  padding: 0 13px;
}

.field textarea {
  min-height: 142px;
  padding: 12px 13px;
  resize: vertical;
}

.field input::placeholder,
.field textarea::placeholder {
  color: #727b84;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--cyan);
  background: rgba(10, 12, 14, 0.58);
  box-shadow: 0 0 0 3px rgba(46, 196, 212, 0.1);
}

.form-row {
  display: flex;
  grid-column: 1 / -1;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 4px;
}

.form-status {
  min-height: 24px;
  color: var(--muted);
  font-size: 0.78rem;
}

.form-status.success {
  color: var(--success);
}

.form-note {
  grid-column: 1 / -1;
  margin: -2px 0 0;
  color: var(--muted);
  font-size: 0.7rem;
}

.definition-list {
  display: grid;
  gap: 0;
  margin: 0;
}

.definition-row {
  display: grid;
  grid-template-columns: 0.38fr 0.62fr;
  gap: 30px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}

.definition-row:first-child {
  padding-top: 0;
}

.definition-row:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.definition-row dt {
  color: var(--ink);
  font-weight: 730;
  letter-spacing: -0.015em;
}

.definition-row dd {
  margin: 0;
  color: var(--muted);
}

.article {
  max-width: 850px;
  margin-inline: auto;
}

.article h2 {
  margin-top: 54px;
  font-size: clamp(1.7rem, 3vw, 2.7rem);
}

.article h3 {
  margin-top: 36px;
}

.article p,
.article li {
  color: var(--ink-soft);
}

.article a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.article .legal-meta {
  margin: 12px 0 34px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
}

.site-footer {
  padding: 42px 0 28px;
  border-top: 1px solid var(--line);
  background: rgba(11, 13, 15, 0.32);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 0.8fr 0.8fr;
  gap: 34px;
}

.footer-brand p {
  max-width: 380px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.footer-column h3 {
  margin: 0 0 13px;
  color: var(--ink);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.footer-column a,
.footer-column span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.8rem;
}

.footer-column a:hover {
  color: var(--ink);
}

.footer-bottom {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  margin-top: 36px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.7rem;
}

.footer-bottom p {
  max-width: 720px;
  margin: 0;
}

.footer-bottom .status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
  color: var(--ink-soft);
  font-family: var(--font-mono);
  text-transform: uppercase;
}

.footer-bottom .status::before {
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: var(--amber);
  box-shadow: 0 0 14px rgba(212, 160, 86, 0.48);
  content: "";
}

.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 620ms ease, transform 620ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1060px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .hero-copy {
    max-width: 900px;
  }

  .hero-visual {
    max-width: 760px;
  }

  .flow-panel {
    min-height: auto;
  }

  .cards-4,
  .metric-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .arch-layer + .arch-layer::before {
    display: none;
  }

  .section-grid,
  .section-grid.equal,
  .form-shell,
  .callout {
    grid-template-columns: 1fr;
    gap: 42px;
  }

  .footer-grid {
    grid-template-columns: 1.3fr repeat(3, 0.7fr);
  }
}

@media (max-width: 860px) {
  :root {
    --shell: min(calc(100% - 28px), 1180px);
  }

  .nav-toggle {
    display: block;
  }

  .primary-nav {
    position: absolute;
    top: 76px;
    right: 14px;
    left: 14px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: rgba(22, 24, 27, 0.98);
    box-shadow: var(--shadow);
  }

  .primary-nav.is-open {
    display: flex;
  }

  .primary-nav a {
    padding: 12px 13px;
  }

  .primary-nav a[aria-current="page"]::after {
    display: none;
  }

  .nav-cta {
    margin-left: 0;
  }

  .hero {
    padding-top: 66px;
  }

  .hero h1,
  .page-title {
    font-size: clamp(3rem, 11vw, 5.5rem);
  }

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

  .trust-item {
    border-bottom: 1px solid var(--line);
  }

  .trust-item:nth-child(2n) {
    border-right: 0;
  }

  .trust-item:last-child {
    grid-column: 1 / -1;
    border-bottom: 0;
  }

  .cards-3,
  .capability-grid,
  .partner-grid,
  .stack-grid {
    grid-template-columns: 1fr;
  }

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

  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 640px) {
  .brand-tagline {
    display: none;
  }

  .hero {
    padding: 54px 0 60px;
  }

  .hero.compact {
    padding: 50px 0 34px;
  }

  .hero h1,
  .page-title {
    font-size: clamp(2.7rem, 13.8vw, 4.4rem);
  }

  .hero-actions,
  .section-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .button {
    width: 100%;
  }

  .flow-panel,
  .statement-panel,
  .form-shell,
  .callout {
    padding: 22px;
    border-radius: 20px;
  }

  .flow-node {
    grid-template-columns: 42px minmax(0, 1fr);
    gap: 12px;
    min-height: 76px;
    padding: 12px;
  }

  .node-icon {
    width: 42px;
    height: 42px;
  }

  .node-state {
    display: none;
  }

  .flow-node:not(:last-child)::after {
    left: 32px;
  }

  .flow-caption {
    flex-direction: column;
  }

  .section {
    padding: 78px 0;
  }

  .section.tight {
    padding: 58px 0;
  }

  .section-grid {
    gap: 34px;
  }

  .cards-4,
  .metric-grid,
  .architecture {
    grid-template-columns: 1fr;
  }

  .card,
  .capability-card,
  .partner-card,
  .metric-card {
    padding: 22px;
  }

  .contact-form {
    grid-template-columns: 1fr;
  }

  .field.full,
  .form-row,
  .form-note {
    grid-column: auto;
  }

  .form-row {
    flex-direction: column;
    align-items: stretch;
  }

  .definition-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .workflow-step {
    grid-template-columns: 54px minmax(0, 1fr);
    gap: 16px;
  }

  .workflow-index {
    width: 54px;
    height: 54px;
    border-radius: 13px;
  }

  .workflow-step::before {
    top: 32px;
    left: 26px;
  }

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

  .footer-brand {
    grid-column: auto;
  }

  .footer-bottom {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

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