:root {
  --navy: #0a1220;
  --navy-deep: #060d18;
  --navy-soft: #111d31;
  --blue: #0066ff;
  --blue-dark: #004dd9;
  --ice: #eaf1ff;
  --white: #ffffff;
  --ink: #0a1220;
  --muted: #61708a;
  --line: #dce5f3;
  --line-dark: rgba(255, 255, 255, 0.12);
  --shadow: 0 24px 70px rgba(10, 18, 32, 0.12);
  --radius: 2px;
  --header-height: 92px;
  --container: 1240px;
  --font-brand: "Exo 2", "Aptos", Arial, sans-serif;
  --font-body: "Aptos", Arial, sans-serif;
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 24px);
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--white);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

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

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

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

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

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

h1,
h2,
h3,
.eyebrow,
.button,
.site-nav,
.process-number,
.service-index,
.detail-mark,
.method-flow,
.contact-meta span,
.contact-method span,
.footer-links span {
  font-family: var(--font-brand);
}

h1,
h2,
h3 {
  line-height: 1.08;
  letter-spacing: -0.025em;
}

h1 {
  font-size: clamp(3.2rem, 7vw, 6.6rem);
}

h2 {
  font-size: clamp(2.25rem, 4.5vw, 4rem);
}

h3 {
  font-size: clamp(1.28rem, 2vw, 1.7rem);
}

::selection {
  background: var(--blue);
  color: var(--white);
}

.container {
  width: min(calc(100% - 48px), var(--container));
  margin-inline: auto;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  z-index: 9999;
  top: 12px;
  left: 12px;
  padding: 10px 16px;
  background: var(--white);
  color: var(--navy);
  transform: translateY(-150%);
  transition: transform 180ms ease;
}

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

:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 4px;
}

/* Header */
.site-header {
  position: fixed;
  z-index: 1000;
  inset: 0 0 auto;
  height: var(--header-height);
  color: var(--white);
  background: linear-gradient(to bottom, rgba(6, 13, 24, 0.82), transparent);
  transition: background 260ms ease, box-shadow 260ms ease, height 260ms ease;
}

.site-header.is-scrolled,
body.menu-open .site-header {
  height: 78px;
  background: rgba(6, 13, 24, 0.96);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(14px);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

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

.brand-horizontal {
  width: 280px;
  height: auto;
}

.brand-symbol {
  display: none;
  width: 44px;
  height: 44px;
  object-fit: contain;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 31px;
  font-size: 0.86rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.site-nav > a:not(.nav-cta) {
  position: relative;
  color: rgba(255, 255, 255, 0.76);
  transition: color 180ms ease;
}

.site-nav > a:not(.nav-cta)::after {
  position: absolute;
  content: "";
  left: 0;
  right: 100%;
  bottom: -9px;
  height: 2px;
  background: var(--blue);
  transition: right 220ms var(--ease);
}

.site-nav > a:hover,
.site-nav > a[aria-current="page"] {
  color: var(--white);
}

.site-nav > a:hover::after,
.site-nav > a[aria-current="page"]::after {
  right: 0;
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 20px;
  color: var(--white);
  background: var(--blue);
  border: 1px solid var(--blue);
  transition: background 180ms ease, border-color 180ms ease, transform 180ms ease;
}

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

.menu-toggle {
  display: none;
  width: 48px;
  height: 48px;
  padding: 12px;
  border: 0;
  background: transparent;
  color: var(--white);
  cursor: pointer;
}

.menu-toggle span:not(.sr-only) {
  display: block;
  width: 24px;
  height: 2px;
  margin: 5px auto;
  background: currentColor;
  transition: transform 200ms ease, opacity 200ms ease;
}

.menu-toggle[aria-expanded="true"] span:nth-of-type(2) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:nth-of-type(3) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] span:nth-of-type(4) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Buttons */
.button {
  position: relative;
  display: inline-flex;
  min-height: 56px;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 0 26px;
  border: 1px solid transparent;
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.045em;
  text-transform: uppercase;
  cursor: pointer;
  overflow: hidden;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease, color 180ms ease;
}

.button span {
  font-size: 1.2em;
  transition: transform 180ms ease;
}

.button:hover {
  transform: translateY(-3px);
}

.button:hover span {
  transform: translateX(4px);
}

.button-primary {
  background: var(--blue);
  color: var(--white);
  border-color: var(--blue);
}

.button-primary:hover {
  background: var(--blue-dark);
  border-color: var(--blue-dark);
}

.button-ghost {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.34);
  background: rgba(255, 255, 255, 0.02);
}

.button-ghost:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.64);
}

.button-dark {
  color: var(--white);
  background: var(--navy);
  border-color: var(--navy);
}

.button-dark:hover {
  background: var(--blue);
  border-color: var(--blue);
}

/* Shared */
.eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 22px;
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.19em;
  line-height: 1.4;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 30px;
  height: 2px;
  background: currentColor;
}

.eyebrow-dark {
  color: var(--blue);
}

.section {
  position: relative;
  padding: 128px 0;
}

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

.section-ice {
  background: var(--ice);
}

.section-navy {
  background: var(--navy);
  color: var(--white);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.72fr);
  gap: 80px;
  align-items: end;
  margin-bottom: 72px;
}

.section-heading h2 {
  max-width: 790px;
  margin-bottom: 0;
}

.section-heading > p {
  max-width: 510px;
  margin-bottom: 5px;
  color: var(--muted);
}

.section-heading-on-dark > p {
  color: rgba(255, 255, 255, 0.64);
}

/* Hero */
.hero {
  position: relative;
  min-height: 100svh;
  overflow: hidden;
  background: var(--navy-deep);
  color: var(--white);
}

.hero-home {
  display: flex;
  align-items: center;
  padding: calc(var(--header-height) + 80px) 0 100px;
}

.hero-grid-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.34;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 76px 76px;
  mask-image: linear-gradient(to right, transparent, black 30%, black 100%);
}

.hero-grid-overlay::after {
  position: absolute;
  content: "";
  inset: 0;
  background: radial-gradient(circle at 64% 35%, rgba(0, 102, 255, 0.12), transparent 45%);
}

.hero-lines {
  position: absolute;
  z-index: 1;
  top: -15%;
  right: -4%;
  width: 46%;
  height: 130%;
  pointer-events: none;
  transform: skewX(-28deg);
}

.hero-lines span {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, transparent, rgba(0, 102, 255, 0.75), rgba(0, 102, 255, 0.08), transparent);
  animation: line-pulse 6s ease-in-out infinite;
}

.hero-lines span:nth-child(1) { left: 18%; }
.hero-lines span:nth-child(2) { left: 37%; animation-delay: -1.2s; }
.hero-lines span:nth-child(3) { left: 56%; animation-delay: -2.4s; }
.hero-lines span:nth-child(4) { left: 75%; animation-delay: -3.6s; }

@keyframes line-pulse {
  0%, 100% { opacity: 0.25; transform: translateY(-1.5%); }
  50% { opacity: 0.9; transform: translateY(1.5%); }
}

.hero-layout {
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(380px, 0.82fr);
  align-items: center;
  gap: clamp(60px, 8vw, 118px);
}

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

.hero-copy h1 {
  margin-bottom: 34px;
  font-weight: 600;
  letter-spacing: -0.04em;
}

.hero-copy h1 span {
  color: var(--blue);
}

.hero-lead {
  max-width: 690px;
  margin-bottom: 40px;
  color: rgba(255, 255, 255, 0.7);
  font-size: clamp(1.1rem, 1.65vw, 1.32rem);
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.hero-system {
  position: relative;
  min-height: 560px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-symbol {
  position: absolute;
  width: min(90%, 470px);
  opacity: 0.08;
  filter: saturate(1.15);
  animation: symbol-float 7s ease-in-out infinite;
}

@keyframes symbol-float {
  0%, 100% { transform: translate3d(0, -5px, 0); }
  50% { transform: translate3d(0, 7px, 0); }
}

.system-flow {
  position: relative;
  z-index: 2;
  width: min(100%, 480px);
  padding-left: 42px;
}

.system-flow::before {
  position: absolute;
  content: "";
  top: 34px;
  bottom: 34px;
  left: 9px;
  width: 1px;
  background: linear-gradient(var(--blue), rgba(0, 102, 255, 0.12));
}

.system-node {
  position: relative;
  display: grid;
  grid-template-columns: 40px 1fr;
  grid-template-rows: auto auto;
  column-gap: 18px;
  margin: 0 0 20px;
  padding: 20px 22px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(10, 18, 32, 0.76);
  backdrop-filter: blur(12px);
  transition: transform 240ms var(--ease), border-color 240ms ease, background 240ms ease;
}

.system-node::before {
  position: absolute;
  content: "";
  top: 50%;
  left: -40px;
  width: 12px;
  height: 12px;
  background: var(--navy-deep);
  border: 2px solid var(--blue);
  transform: translateY(-50%) rotate(45deg);
}

.system-node:hover {
  transform: translateX(-8px);
  border-color: rgba(0, 102, 255, 0.62);
  background: rgba(17, 29, 49, 0.9);
}

.system-node > span {
  grid-row: 1 / 3;
  align-self: center;
  color: var(--blue);
  font-family: var(--font-brand);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.system-node strong {
  font-family: var(--font-brand);
  font-size: 1.05rem;
  letter-spacing: 0.01em;
}

.system-node small {
  color: rgba(255, 255, 255, 0.55);
  font-size: 0.84rem;
}

.scroll-cue {
  position: absolute;
  z-index: 4;
  left: 50%;
  bottom: 25px;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: rgba(255, 255, 255, 0.52);
  font-family: var(--font-brand);
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  transform: translateX(-50%);
}

.scroll-cue span {
  width: 1px;
  height: 34px;
  background: linear-gradient(var(--blue), transparent);
  animation: scroll-cue 2s ease-in-out infinite;
}

@keyframes scroll-cue {
  0%, 100% { transform: scaleY(0.65); transform-origin: top; opacity: 0.45; }
  50% { transform: scaleY(1); transform-origin: top; opacity: 1; }
}

.statement-band {
  background: var(--blue);
  color: var(--white);
}

.statement-inner {
  min-height: 96px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.statement-line {
  width: 80px;
  height: 2px;
  flex: 0 0 auto;
  background: var(--white);
}

.statement-inner p {
  margin: 0;
  font-family: var(--font-brand);
  font-size: clamp(1.05rem, 2vw, 1.42rem);
  letter-spacing: 0.015em;
}

/* Process */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.process-card {
  position: relative;
  min-height: 280px;
  padding: 36px 30px 42px;
  border-right: 1px solid var(--line);
  overflow: hidden;
}

.process-card:last-child {
  border-right: 0;
}

.process-card::after {
  position: absolute;
  content: "";
  inset: auto 0 0;
  height: 4px;
  background: var(--blue);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 300ms var(--ease);
}

.process-card:hover::after {
  transform: scaleX(1);
}

.process-number {
  display: block;
  margin-bottom: 64px;
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.15em;
}

.process-card h3 {
  margin-bottom: 16px;
}

.process-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.96rem;
}

/* Service preview */
.services-preview {
  overflow: hidden;
}

.services-preview::before {
  position: absolute;
  content: "";
  top: -32%;
  right: -16%;
  width: 60%;
  aspect-ratio: 1;
  border: 1px solid rgba(0, 102, 255, 0.13);
  transform: rotate(45deg);
}

.service-card-grid {
  position: relative;
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 1px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.service-card {
  position: relative;
  grid-column: span 2;
  min-height: 300px;
  padding: 34px;
  background: var(--navy);
  overflow: hidden;
  transition: background 240ms ease;
}

.service-card:nth-child(4),
.service-card:nth-child(5) {
  grid-column: span 3;
}

.service-card::before {
  position: absolute;
  content: "";
  top: -100%;
  right: -48%;
  width: 74%;
  height: 220%;
  border-left: 1px solid rgba(0, 102, 255, 0.38);
  transform: rotate(24deg);
  transition: right 360ms var(--ease), border-color 240ms ease;
}

.service-card:hover {
  background: var(--navy-soft);
}

.service-card:hover::before {
  right: -34%;
  border-color: var(--blue);
}

.service-index {
  display: block;
  margin-bottom: 72px;
  color: var(--blue);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
}

.service-card h3 {
  max-width: 330px;
  margin-bottom: 14px;
}

.service-card p {
  max-width: 330px;
  margin: 0;
  color: rgba(255, 255, 255, 0.58);
  font-size: 0.94rem;
}

.service-arrow {
  position: absolute;
  right: 28px;
  bottom: 27px;
  color: var(--blue);
  font-size: 1.5rem;
  transition: transform 220ms var(--ease);
}

.service-card:hover .service-arrow {
  transform: translateX(7px);
}

/* Callout */
.callout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.75fr);
  gap: 80px;
  align-items: center;
}

.callout h2 {
  margin-bottom: 0;
}

.callout-copy p {
  margin-bottom: 28px;
  color: var(--muted);
}

/* Page hero */
.page-hero {
  position: relative;
  min-height: 620px;
  display: flex;
  align-items: flex-end;
  padding: calc(var(--header-height) + 100px) 0 96px;
  color: var(--white);
  background: var(--navy-deep);
  overflow: hidden;
}

.page-hero::after {
  position: absolute;
  content: "";
  right: 12%;
  bottom: -220px;
  width: 540px;
  height: 540px;
  border: 1px solid rgba(0, 102, 255, 0.18);
  transform: rotate(45deg);
}

.page-lines {
  width: 42%;
  right: 2%;
}

.page-hero-inner {
  position: relative;
  z-index: 3;
}

.page-hero-inner h1 {
  max-width: 980px;
  margin-bottom: 30px;
  font-size: clamp(3.2rem, 7vw, 6.3rem);
  font-weight: 600;
}

.page-hero-inner > p:last-child {
  max-width: 720px;
  margin: 0;
  color: rgba(255, 255, 255, 0.68);
  font-size: clamp(1.1rem, 1.6vw, 1.3rem);
}

.services-intro {
  padding-bottom: 58px;
}

/* Detailed services */
.service-detail-section {
  padding-bottom: 128px;
  background: var(--white);
}

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

.service-detail {
  position: relative;
  display: grid;
  grid-template-columns: 100px minmax(0, 1.25fr) minmax(300px, 0.75fr);
  gap: clamp(36px, 6vw, 90px);
  align-items: center;
  min-height: 610px;
  padding: 92px 0;
  border-bottom: 1px solid var(--line);
}

.service-detail-reverse {
  grid-template-columns: 100px minmax(300px, 0.75fr) minmax(0, 1.25fr);
}

.service-detail-reverse .detail-copy {
  grid-column: 3;
  grid-row: 1;
}

.service-detail-reverse .detail-graphic {
  grid-column: 2;
  grid-row: 1;
}

.detail-mark {
  align-self: stretch;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
}

.detail-mark i {
  width: 1px;
  flex: 1 1 auto;
  min-height: 160px;
  background: linear-gradient(var(--blue), var(--line));
}

.detail-copy {
  max-width: 650px;
}

.detail-copy h2 {
  margin-bottom: 28px;
  font-size: clamp(2.35rem, 4.5vw, 4rem);
}

.detail-lead {
  margin-bottom: 28px;
  color: var(--muted);
  font-size: 1.1rem;
}

.check-list {
  display: grid;
  gap: 13px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 28px;
  color: #25324a;
}

.check-list li::before {
  position: absolute;
  content: "";
  top: 0.78em;
  left: 0;
  width: 12px;
  height: 2px;
  background: var(--blue);
}

.detail-graphic {
  position: relative;
  min-height: 370px;
  border: 1px solid var(--line);
  background:
    linear-gradient(rgba(10, 18, 32, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10, 18, 32, 0.04) 1px, transparent 1px),
    var(--ice);
  background-size: 32px 32px;
  overflow: hidden;
}

.detail-graphic::after {
  position: absolute;
  content: "";
  inset: auto 0 0;
  height: 4px;
  background: var(--blue);
}

.graphic-box {
  position: absolute;
  border: 2px solid var(--navy);
}

.graphic-box-a {
  top: 82px;
  left: 62px;
  width: 170px;
  height: 130px;
}

.graphic-box-b {
  right: 60px;
  bottom: 74px;
  width: 150px;
  height: 110px;
  border-color: var(--blue);
}

.graphic-line {
  position: absolute;
  top: 50%;
  left: 145px;
  width: 180px;
  height: 2px;
  background: var(--blue);
  transform: rotate(24deg);
}

.graphic-point {
  position: absolute;
  top: 47%;
  left: 49%;
  width: 18px;
  height: 18px;
  border: 4px solid var(--blue);
  background: var(--ice);
  transform: rotate(45deg);
}

.graphic-blueprint span {
  position: absolute;
  display: block;
  border: 2px solid var(--navy);
}

.graphic-blueprint span:nth-child(1) { inset: 54px 70px 90px 54px; }
.graphic-blueprint span:nth-child(2) { top: 102px; left: 104px; width: 160px; height: 94px; border-color: var(--blue); }
.graphic-blueprint span:nth-child(3) { top: 50px; right: 46px; width: 54px; height: 54px; transform: rotate(45deg); }
.graphic-blueprint span:nth-child(4) { bottom: 48px; left: 60px; width: 116px; height: 26px; border-top: 0; border-right: 0; border-left: 0; }
.graphic-blueprint b {
  position: absolute;
  width: 1px;
  height: 140%;
  top: -20%;
  background: rgba(0, 102, 255, 0.35);
  transform: rotate(28deg);
}
.graphic-blueprint b:nth-of-type(1) { right: 31%; }
.graphic-blueprint b:nth-of-type(2) { right: 18%; }

.graphic-performance {
  display: flex;
  align-items: center;
  justify-content: center;
}

.performance-track {
  position: relative;
  width: 78%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.performance-track::before {
  position: absolute;
  content: "";
  left: 8px;
  right: 8px;
  top: 50%;
  height: 2px;
  background: var(--navy);
  transform: translateY(-50%);
}

.performance-track span {
  position: relative;
  z-index: 1;
  width: 44px;
  height: 44px;
  border: 2px solid var(--navy);
  background: var(--ice);
  transform: rotate(45deg);
}

.performance-track .bottleneck {
  width: 28px;
  height: 28px;
  border: 5px solid var(--blue);
  box-shadow: 0 0 0 12px rgba(0, 102, 255, 0.12);
}

.performance-arrow {
  position: absolute;
  right: 17%;
  bottom: 70px;
  width: 110px;
  height: 72px;
  border-top: 3px solid var(--blue);
  border-right: 3px solid var(--blue);
  transform: skewX(-34deg);
}

.graphic-safety {
  display: flex;
  align-items: center;
  justify-content: center;
}

.safety-shield {
  position: relative;
  z-index: 2;
  width: 150px;
  height: 182px;
  border: 4px solid var(--navy);
  clip-path: polygon(50% 0, 100% 18%, 91% 72%, 50% 100%, 9% 72%, 0 18%);
  background: var(--ice);
}

.safety-shield span::before,
.safety-shield span::after {
  position: absolute;
  content: "";
  background: var(--blue);
}

.safety-shield span::before {
  width: 58px;
  height: 6px;
  top: 92px;
  left: 47px;
  transform: rotate(-47deg);
}

.safety-shield span::after {
  width: 31px;
  height: 6px;
  top: 103px;
  left: 35px;
  transform: rotate(43deg);
}

.safety-ring {
  position: absolute;
  width: 250px;
  height: 250px;
  border: 1px solid rgba(0, 102, 255, 0.4);
  border-radius: 50%;
  animation: safety-ring 5s ease-in-out infinite;
}

@keyframes safety-ring {
  0%, 100% { transform: scale(0.92); opacity: 0.35; }
  50% { transform: scale(1.04); opacity: 0.8; }
}

.graphic-document {
  display: flex;
  align-items: center;
  justify-content: center;
}

.document-sheet {
  position: relative;
  width: 210px;
  height: 270px;
  padding: 64px 34px 34px;
  border: 3px solid var(--navy);
  background: var(--white);
  box-shadow: 18px 18px 0 rgba(0, 102, 255, 0.12);
}

.document-sheet::before {
  position: absolute;
  content: "";
  top: -3px;
  right: -3px;
  width: 58px;
  height: 58px;
  border-left: 3px solid var(--navy);
  border-bottom: 3px solid var(--navy);
  background: var(--ice);
  clip-path: polygon(0 0, 100% 100%, 0 100%);
}

.document-sheet span {
  display: block;
  height: 2px;
  margin-bottom: 20px;
  background: var(--line);
}

.document-sheet span:nth-child(2) { width: 82%; }
.document-sheet span:nth-child(3) { width: 63%; }

.document-sheet b {
  position: absolute;
  right: 30px;
  bottom: 28px;
  color: var(--blue);
  font-family: var(--font-brand);
  font-size: 2.2rem;
  letter-spacing: -0.06em;
}

/* Method */
.method-flow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  padding: 0;
  margin: 0;
  list-style: none;
  border: 1px solid var(--line-dark);
}

.method-flow li {
  position: relative;
  min-height: 220px;
  padding: 32px;
  border-right: 1px solid var(--line-dark);
}

.method-flow li:last-child {
  border-right: 0;
}

.method-flow li::after {
  position: absolute;
  content: "";
  top: 50%;
  right: -7px;
  z-index: 2;
  width: 12px;
  height: 12px;
  border-top: 2px solid var(--blue);
  border-right: 2px solid var(--blue);
  transform: translateY(-50%) rotate(45deg);
}

.method-flow li:last-child::after {
  display: none;
}

.method-flow span,
.method-flow strong,
.method-flow small {
  display: block;
}

.method-flow span {
  margin-bottom: 54px;
  color: var(--blue);
  font-size: 0.74rem;
  letter-spacing: 0.15em;
}

.method-flow strong {
  margin-bottom: 10px;
  font-size: 1.2rem;
}

.method-flow small {
  color: rgba(255, 255, 255, 0.55);
  font-family: var(--font-body);
  font-size: 0.9rem;
}

/* Contact */
.contact-section {
  overflow: hidden;
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(340px, 0.78fr) minmax(0, 1.22fr);
  gap: 0;
  align-items: stretch;
  box-shadow: var(--shadow);
}

.contact-panel {
  position: relative;
  min-height: 720px;
  padding: 60px;
  color: var(--white);
  background: var(--navy);
  overflow: hidden;
}

.contact-panel h2 {
  margin-bottom: 24px;
  font-size: clamp(2.4rem, 4vw, 3.5rem);
}

.contact-panel > p:not(.eyebrow) {
  max-width: 470px;
  color: rgba(255, 255, 255, 0.64);
}

.contact-method {
  position: relative;
  z-index: 2;
  margin-top: 58px;
  padding: 30px 0;
  border-top: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
}

.contact-method > span,
.contact-meta span {
  display: block;
  margin-bottom: 8px;
  color: var(--blue);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.contact-method a {
  display: inline-block;
  font-family: var(--font-brand);
  font-size: clamp(1.3rem, 2.2vw, 1.85rem);
  font-weight: 600;
  word-break: break-word;
}

.copy-button {
  display: block;
  margin-top: 14px;
  padding: 0;
  border: 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.4);
  color: rgba(255, 255, 255, 0.62);
  background: transparent;
  font-size: 0.82rem;
  cursor: pointer;
}

.copy-button:hover {
  color: var(--white);
  border-color: var(--blue);
}

.contact-meta {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  margin-top: 32px;
}

.contact-meta strong {
  display: block;
  font-size: 0.98rem;
}

.contact-graphic {
  position: absolute;
  inset: auto -25% -28% auto;
  width: 74%;
  aspect-ratio: 1;
  opacity: 0.2;
}

.contact-graphic img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.contact-graphic span {
  position: absolute;
  z-index: 2;
  top: -10%;
  bottom: -10%;
  width: 1px;
  background: var(--blue);
  transform: rotate(28deg);
}

.contact-graphic span:nth-child(1) { left: 20%; }
.contact-graphic span:nth-child(2) { left: 43%; }
.contact-graphic span:nth-child(3) { left: 66%; }

.form-wrap {
  padding: 60px;
  background: var(--white);
}

.form-heading {
  margin-bottom: 40px;
}

.form-heading h2 {
  margin-bottom: 18px;
  font-size: clamp(2.3rem, 4vw, 3.4rem);
}

.form-heading > p:last-child {
  color: var(--muted);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 26px;
}

.field {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

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

.field label:not(.checkbox-label) {
  margin-bottom: 8px;
  color: var(--ink);
  font-family: var(--font-brand);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 0;
  color: var(--ink);
  background: #fbfdff;
  outline: 0;
  transition: border-color 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.field input,
.field select {
  height: 54px;
  padding: 0 15px;
}

.field textarea {
  min-height: 170px;
  padding: 14px 15px;
  resize: vertical;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--blue);
  background: var(--white);
  box-shadow: 0 0 0 4px rgba(0, 102, 255, 0.09);
}

.field.is-invalid input,
.field.is-invalid select,
.field.is-invalid textarea {
  border-color: #b42318;
}

.field-error {
  min-height: 18px;
  margin-top: 5px;
  color: #b42318;
  font-size: 0.78rem;
}

.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: var(--muted);
  font-size: 0.88rem;
  cursor: pointer;
}

.checkbox-label input {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
  margin-top: 4px;
  accent-color: var(--blue);
}

.form-actions {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-top: 28px;
}

.form-status {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.prompt-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.prompt-grid article {
  min-height: 240px;
  padding: 30px;
  border: 1px solid rgba(10, 18, 32, 0.1);
  background: rgba(255, 255, 255, 0.5);
  transition: transform 220ms var(--ease), background 220ms ease, border-color 220ms ease;
}

.prompt-grid article:hover {
  transform: translateY(-6px);
  background: var(--white);
  border-color: rgba(0, 102, 255, 0.3);
}

.prompt-grid span {
  display: block;
  margin-bottom: 48px;
  color: var(--blue);
  font-family: var(--font-brand);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
}

.prompt-grid h3 {
  margin-bottom: 13px;
}

.prompt-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

/* Footer */
.site-footer {
  padding: 82px 0 24px;
  color: var(--white);
  background: var(--navy-deep);
}

.footer-main {
  display: grid;
  grid-template-columns: minmax(280px, 1fr) minmax(360px, 0.72fr);
  gap: 80px;
  padding-bottom: 72px;
  border-bottom: 1px solid var(--line-dark);
}

.footer-brand img {
  width: 300px;
  height: auto;
  margin-bottom: 24px;
}

.footer-brand p {
  margin: 0;
  color: rgba(255, 255, 255, 0.54);
}

.footer-links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.footer-links > div {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 9px;
}

.footer-links span {
  margin-bottom: 8px;
  color: var(--blue);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.footer-links a,
.footer-links p {
  margin: 0;
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.93rem;
}

.footer-links a:hover {
  color: var(--white);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  padding-top: 24px;
  color: rgba(255, 255, 255, 0.4);
  font-size: 0.78rem;
}

.footer-bottom p {
  margin: 0;
}

/* Reveal animation */
[data-reveal] {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 700ms var(--ease), transform 700ms var(--ease);
  transition-delay: var(--reveal-delay, 0ms);
}

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

/* Responsive */
@media (max-width: 1080px) {
  :root {
    --header-height: 82px;
  }

  .site-nav {
    gap: 22px;
    font-size: 0.78rem;
  }

  .brand-horizontal {
    width: 260px;
  }

  .hero-layout {
    grid-template-columns: minmax(0, 1.1fr) minmax(330px, 0.9fr);
    gap: 44px;
  }

  .system-node {
    padding: 18px;
  }

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

  .process-card:nth-child(2) {
    border-right: 0;
  }

  .process-card:nth-child(-n+2) {
    border-bottom: 1px solid var(--line);
  }

  .service-detail,
  .service-detail-reverse {
    grid-template-columns: 74px minmax(0, 1.1fr) minmax(280px, 0.75fr);
    gap: 42px;
  }

  .service-detail-reverse {
    grid-template-columns: 74px minmax(280px, 0.75fr) minmax(0, 1.1fr);
  }

  .contact-panel,
  .form-wrap {
    padding: 44px;
  }

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

@media (max-width: 900px) {
  .container {
    width: min(calc(100% - 36px), var(--container));
  }

  .menu-toggle {
    display: block;
    position: relative;
    z-index: 5;
  }

  .site-nav {
    position: fixed;
    inset: 0;
    z-index: 4;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 28px;
    padding: 100px max(28px, 8vw);
    background: rgba(6, 13, 24, 0.98);
    transform: translateX(100%);
    transition: transform 320ms var(--ease);
  }

  .site-nav.is-open {
    transform: translateX(0);
  }

  .site-nav > a:not(.nav-cta) {
    font-size: clamp(1.7rem, 7vw, 3rem);
    letter-spacing: -0.02em;
    text-transform: none;
  }

  .site-nav > a:not(.nav-cta)::after {
    bottom: -4px;
  }

  .nav-cta {
    margin-top: 10px;
  }

  .hero-home {
    min-height: auto;
    padding-top: 160px;
  }

  .hero-layout {
    grid-template-columns: 1fr;
  }

  .hero-system {
    min-height: 500px;
  }

  .hero-lines {
    width: 68%;
    right: -18%;
    opacity: 0.65;
  }

  .scroll-cue {
    display: none;
  }

  .section,
  .service-detail-section {
    padding: 96px 0;
  }

  .services-intro {
    padding-bottom: 42px;
  }

  .section-heading,
  .callout {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .section-heading {
    margin-bottom: 52px;
  }

  .section-heading > p {
    max-width: 680px;
  }

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

  .service-card,
  .service-card:nth-child(4),
  .service-card:nth-child(5) {
    grid-column: span 1;
  }

  .service-card:last-child {
    grid-column: 1 / -1;
  }

  .page-hero {
    min-height: 560px;
  }

  .service-detail,
  .service-detail-reverse {
    grid-template-columns: 58px minmax(0, 1fr);
    min-height: 0;
    padding: 76px 0;
  }

  .detail-mark {
    grid-column: 1;
    grid-row: 1 / 3;
  }

  .detail-copy,
  .service-detail-reverse .detail-copy {
    grid-column: 2;
    grid-row: 1;
  }

  .detail-graphic,
  .service-detail-reverse .detail-graphic {
    grid-column: 2;
    grid-row: 2;
    min-height: 320px;
    margin-top: 10px;
  }

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

  .method-flow li:nth-child(2) {
    border-right: 0;
  }

  .method-flow li:nth-child(-n+2) {
    border-bottom: 1px solid var(--line-dark);
  }

  .method-flow li:nth-child(2)::after {
    display: none;
  }

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

  .contact-panel {
    min-height: 620px;
  }

  .footer-main {
    grid-template-columns: 1fr;
    gap: 52px;
  }
}

@media (max-width: 640px) {
  :root {
    --header-height: 72px;
  }

  body {
    font-size: 16px;
  }

  .container {
    width: min(calc(100% - 28px), var(--container));
  }

  .brand-horizontal {
    display: none;
  }

  .brand-symbol {
    display: block;
  }

  .site-header.is-scrolled,
  body.menu-open .site-header {
    height: 68px;
  }

  .hero-home {
    padding: 132px 0 78px;
  }

  .hero-copy h1 {
    font-size: clamp(3.15rem, 14vw, 4.8rem);
  }

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

  .button {
    width: 100%;
  }

  .hero-system {
    min-height: 470px;
    margin-top: -12px;
  }

  .system-flow {
    padding-left: 32px;
  }

  .system-flow::before {
    left: 6px;
  }

  .system-node {
    grid-template-columns: 34px 1fr;
    column-gap: 10px;
    padding: 16px 14px;
  }

  .system-node::before {
    left: -31px;
  }

  .statement-inner {
    min-height: 110px;
  }

  .statement-line {
    width: 32px;
  }

  .section,
  .service-detail-section {
    padding: 76px 0;
  }

  .section-heading {
    margin-bottom: 40px;
  }

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

  .process-card,
  .process-card:nth-child(2) {
    min-height: 230px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .process-card:last-child {
    border-bottom: 0;
  }

  .process-number {
    margin-bottom: 38px;
  }

  .service-card-grid {
    grid-template-columns: 1fr;
  }

  .service-card,
  .service-card:last-child {
    grid-column: 1;
    min-height: 255px;
    padding: 28px;
  }

  .service-index {
    margin-bottom: 48px;
  }

  .page-hero {
    min-height: 500px;
    padding-bottom: 68px;
  }

  .page-hero-inner h1 {
    font-size: clamp(3rem, 13vw, 4.8rem);
  }

  .service-detail,
  .service-detail-reverse {
    grid-template-columns: 1fr;
    gap: 30px;
    padding: 64px 0;
  }

  .detail-mark {
    grid-column: 1;
    grid-row: 1;
    flex-direction: row;
    align-items: center;
  }

  .detail-mark i {
    width: auto;
    height: 1px;
    min-height: 0;
    flex: 1 1 auto;
    background: linear-gradient(90deg, var(--blue), var(--line));
  }

  .detail-copy,
  .service-detail-reverse .detail-copy {
    grid-column: 1;
    grid-row: 2;
  }

  .detail-graphic,
  .service-detail-reverse .detail-graphic {
    grid-column: 1;
    grid-row: 3;
    min-height: 300px;
  }

  .method-flow {
    grid-template-columns: 1fr;
  }

  .method-flow li,
  .method-flow li:nth-child(2) {
    min-height: 190px;
    border-right: 0;
    border-bottom: 1px solid var(--line-dark);
  }

  .method-flow li:last-child {
    border-bottom: 0;
  }

  .method-flow li::after,
  .method-flow li:nth-child(2)::after {
    display: block;
    top: auto;
    right: 50%;
    bottom: -7px;
    transform: translateX(50%) rotate(135deg);
  }

  .method-flow li:last-child::after {
    display: none;
  }

  .method-flow span {
    margin-bottom: 36px;
  }

  .contact-panel,
  .form-wrap {
    padding: 34px 24px;
  }

  .contact-panel {
    min-height: 600px;
  }

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

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

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

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

  .prompt-grid article {
    min-height: 210px;
  }

  .footer-main {
    padding-bottom: 52px;
  }

  .footer-brand img {
    width: 260px;
  }

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

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}