:root {
  --navy: #00317f;
  --navy-mid: #0f4684;
  --ink: #072546;
  --accent: #298eff;
  --text: #0b1220;
  --muted: #5c6b7a;
  --line: rgba(7, 37, 70, 0.12);
  --paper: #f4f7fb;
  --white: #ffffff;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --wrap: 1400px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background: #fafafa;
  font-family: Inter, system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
}

h1,
h2,
h3 {
  font-family: Newsreader, Georgia, serif;
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1.08;
  margin: 0;
}

h1 {
  font-size: clamp(2.4rem, 5.6vw, 4.2rem);
}

h2 {
  font-size: clamp(2rem, 4.4vw, 3.35rem);
}

p {
  margin: 0;
}

.wrap {
  width: min(var(--wrap), calc(100% - 80px));
  margin-inline: auto;
}

.eyebrow {
  margin: 0 0 10px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}

.eyebrow--ink {
  color: var(--navy);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  min-height: 40px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid transparent;
  font: 600 13.5px/1 Inter, sans-serif;
  letter-spacing: 0.02em;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.25s var(--ease), background 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn--solid {
  background: var(--accent);
  color: #fff;
}

.btn--solid:hover {
  background: #4aa0ff;
}

.btn--ghost,
.btn--line {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.28);
}

.btn--line:hover,
.btn--ghost:hover {
  background: #fff;
  color: var(--navy);
}

.top {
  background: linear-gradient(180deg, #00245f 0%, var(--navy) 42%, #001a44 100%);
  color: #fff;
}

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: transparent;
  transition: background 0.25s var(--ease);
}

.nav.is-stuck:not(.is-open) {
  background: #fafafa;
}

.nav__bar {
  width: min(var(--wrap), calc(100% - 80px));
  margin: 0 auto;
  height: 56px;
  display: flex;
  align-items: center;
}

.nav__logo {
  position: relative;
  display: block;
  width: 110px;
}

.nav__mark {
  width: 110px;
  height: auto;
}

.nav__mark--blue {
  display: none;
  position: absolute;
  left: 0;
  top: 0;
}

.nav.is-stuck:not(.is-open) .nav__mark--white {
  visibility: hidden;
}

.nav.is-stuck:not(.is-open) .nav__mark--blue {
  display: block;
}

.nav__toggle {
  margin-left: auto;
  width: 42px;
  height: 42px;
  border: 0;
  background: transparent;
  display: grid;
  place-items: center;
  gap: 6px;
  cursor: pointer;
}

.nav__toggle span {
  display: block;
  width: 18px;
  height: 1.5px;
  background: #fff;
  transition: transform 0.25s var(--ease), background 0.25s var(--ease);
}

.nav.is-stuck:not(.is-open) .nav__toggle span {
  background: var(--navy);
}

.nav.is-open .nav__toggle span {
  background: var(--accent);
}

.nav.is-open .nav__toggle span:first-child {
  transform: translateY(3.5px) rotate(45deg);
}

.nav.is-open .nav__toggle span:last-child {
  transform: translateY(-3.5px) rotate(-45deg);
}

.menu {
  position: fixed;
  inset: 0;
  z-index: 95;
  background:
    radial-gradient(ellipse 80% 50% at 70% -10%, rgba(41, 142, 255, 0.16), transparent 55%),
    #001a44;
  padding: 96px 0 48px;
  overflow-y: auto;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-8px);
  transition: opacity 0.35s var(--ease), transform 0.35s var(--ease), visibility 0.35s;
}

.menu.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: none;
}

.menu[hidden] {
  display: block;
}

.menu__inner {
  max-width: 720px;
}

.menu__nav {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.menu__label {
  margin: 0 0 10px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(250, 250, 250, 0.38);
}

.menu__nav a {
  display: block;
  width: fit-content;
  padding: 4px 0;
  font-family: Newsreader, Georgia, serif;
  font-size: clamp(36px, 6vw, 56px);
  font-weight: 500;
  letter-spacing: -0.045em;
  line-height: 1.12;
  color: #fafafa;
  text-decoration: none;
  transition: color 0.35s var(--ease), transform 0.35s var(--ease);
}

.menu__nav a:hover {
  color: var(--accent);
  transform: translateX(4px);
}

body.menu-open {
  overflow: hidden;
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 104px 0 56px;
}

.hero__layout {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.hero__copy {
  animation: rise 0.9s var(--ease) both;
}

.hero h1 em {
  font-style: italic;
  color: #9ecbff;
}

.hero__lead {
  max-width: 540px;
  margin: 20px 0 28px;
  font-size: 1.05rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.78);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.field {
  position: relative;
  padding: 20px 18px 16px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 20px;
  background: rgba(0, 18, 52, 0.45);
  animation: rise 1s var(--ease) 0.12s both;
}

.listen {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 8px 8px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #9ecbff;
}

.listen__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #4ade80;
  box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.7);
  animation: live 1.6s ease-out infinite;
}

.field__map {
  display: block;
  width: 100%;
  height: auto;
  max-height: 240px;
}

.field__path {
  stroke: rgba(158, 203, 255, 0.38);
  stroke-width: 1.4;
  stroke-dasharray: 7 8;
  animation: flow 18s linear infinite;
}

.field__pulse {
  fill: none;
  stroke: rgba(41, 142, 255, 0.55);
  stroke-width: 1;
  transform-origin: 210px 180px;
  animation: pulse 2.8s var(--ease) infinite;
}

.field__core {
  fill: #0b3d8f;
  stroke: #5eb0ff;
  stroke-width: 1.5;
}

.field__core-label {
  fill: #fff;
  font-family: Inter, sans-serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.field__node circle {
  fill: #9ecbff;
}

.field__node text {
  fill: rgba(255, 255, 255, 0.78);
  font-family: Inter, sans-serif;
  font-size: 12px;
  font-weight: 500;
}

.field__signal {
  fill: #4ade80;
}

.field__signal--late {
  fill: var(--accent);
}

.field__readout {
  margin: 0 8px;
  min-height: 1.4em;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.72);
  transition: opacity 0.35s ease;
}

.field__readout.is-swap {
  opacity: 0;
}

.marquee {
  margin: 40px auto 0;
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}

.marquee__track {
  display: flex;
  width: max-content;
  animation: marquee 28s linear infinite;
}

.marquee:hover .marquee__track {
  animation-play-state: paused;
}

.marquee__list {
  display: flex;
  align-items: center;
  gap: 48px;
  margin: 0;
  padding: 8px 48px 8px 0;
  list-style: none;
}

.marquee__list img {
  display: block;
  height: 36px;
  width: auto;
  max-width: 160px;
  object-fit: contain;
  filter: brightness(0) invert(1);
  opacity: 0.72;
}

.clients,
.services,
.about,
.cta {
  padding: 88px 0;
}

.clients {
  background: var(--paper);
}

.section-head {
  max-width: 640px;
  margin-bottom: 44px;
}

.section-head p:last-child {
  margin-top: 14px;
  color: var(--muted);
}

.section-head--split {
  display: grid;
  gap: 18px;
}

.logo-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.logo-grid li {
  display: grid;
  place-items: center;
  min-height: 104px;
  padding: 20px 24px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
}

.logo-grid img {
  max-height: 46px;
  width: auto;
  max-width: 160px;
  object-fit: contain;
  filter: grayscale(1);
  opacity: 0.82;
}

.logo-grid li:last-child {
  grid-column: 1 / -1;
}

.services {
  background: #fff;
  color: var(--text);
}

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

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

.service__head {
  width: 100%;
  display: grid;
  grid-template-columns: 48px 1fr 28px;
  align-items: center;
  gap: 8px;
  padding: 22px 0;
  border: 0;
  background: transparent;
  color: inherit;
  text-align: left;
  cursor: pointer;
}

.service__num {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--accent);
}

.service__name {
  font-family: Newsreader, Georgia, serif;
  font-size: clamp(1.35rem, 3vw, 1.85rem);
  letter-spacing: -0.02em;
}

.service__icon {
  justify-self: end;
  width: 18px;
  height: 18px;
  position: relative;
}

.service__icon::before,
.service__icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--navy);
  transition: transform 0.25s var(--ease);
}

.service__icon::before {
  width: 14px;
  height: 1.5px;
  transform: translate(-50%, -50%);
}

.service__icon::after {
  width: 1.5px;
  height: 14px;
  transform: translate(-50%, -50%);
}

.service.is-open .service__icon::after {
  transform: translate(-50%, -50%) scaleY(0);
}

.service__body {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  padding: 0 0 0 56px;
  max-width: 720px;
  transition: max-height 0.45s var(--ease), opacity 0.3s ease, padding 0.45s var(--ease);
}

.service.is-open .service__body {
  max-height: 280px;
  opacity: 1;
  padding: 0 0 26px 56px;
}

.service__body p {
  color: var(--muted);
}

.service__body ul {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.service__body li {
  position: relative;
  padding-left: 16px;
  color: var(--muted);
  font-size: 14.5px;
}

.service__body li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 7px;
  height: 1px;
  background: var(--accent);
}

.about {
  background: var(--paper);
}

.about__grid {
  display: grid;
  gap: 40px;
}

.about p:last-of-type {
  margin-top: 16px;
  color: var(--muted);
  max-width: 520px;
}

.verticals {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.verticals li {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 4px 12px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.verticals span {
  grid-row: 1 / 3;
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
  padding-top: 4px;
}

.verticals em {
  font-style: normal;
  color: var(--muted);
  font-size: 14px;
}

.cta {
  background: #fff;
}

.cta h2 {
  max-width: 16ch;
}

.cta p {
  margin-top: 14px;
  color: var(--muted);
}

.cta__mail {
  margin-top: 24px;
}

.cta__mail a {
  color: var(--navy);
  font-weight: 600;
  text-decoration: none;
  font-size: 1.25rem;
}

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

.foot {
  background: #fafafa;
  color: var(--text);
  padding: 48px 0 32px;
  border-top: 1px solid var(--line);
}

.foot__inner {
  display: grid;
  gap: 36px;
}

.foot__top {
  display: grid;
  gap: 12px;
  max-width: 420px;
}

.foot__top p {
  color: var(--muted);
}

.foot__logo img {
  width: 120px;
}

.foot__label {
  margin: 0 0 10px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.foot__grid {
  display: grid;
  gap: 28px;
}

.foot__grid p,
.foot address {
  margin: 0;
  font-style: normal;
  color: var(--muted);
  line-height: 1.7;
}

.foot__grid a {
  color: var(--text);
  text-decoration: none;
}

.foot__grid a:hover {
  color: var(--navy);
}

.foot__copy {
  margin: 0;
  padding-top: 8px;
  font-size: 13px;
  color: var(--muted);
}

@media (max-width: 1100px) {
  .wrap,
  .nav__bar {
    width: calc(100% - 48px);
  }
}

@media (max-width: 768px) {
  .wrap,
  .nav__bar {
    width: calc(100% - 32px);
  }
}

@media (min-width: 800px) {
  .hero {
    padding: 120px 0 80px;
  }

  .hero__layout {
    flex-direction: row;
    align-items: center;
    gap: 64px;
  }

  .hero__copy {
    flex: 1.05;
  }

  .field {
    flex: 0.9;
  }

  .field__map {
    max-height: 280px;
  }

  .marquee__list img {
    height: 40px;
  }

  .logo-grid {
    grid-template-columns: repeat(5, 1fr);
  }

  .logo-grid li:last-child {
    grid-column: auto;
  }

  .section-head--split {
    grid-template-columns: 1.2fr 0.8fr;
    align-items: end;
  }

  .about__grid,
  .foot__grid {
    grid-template-columns: 1fr 1fr 1fr;
    align-items: start;
  }

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

  .service__head:hover .service__name {
    color: var(--navy);
  }
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes flow {
  to {
    stroke-dashoffset: -240;
  }
}

@keyframes pulse {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.7;
  }
  50% {
    transform: scale(1.28);
    opacity: 0.15;
  }
}

@keyframes marquee {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

@keyframes live {
  0% {
    box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.7);
  }
  100% {
    box-shadow: 0 0 0 10px rgba(74, 222, 128, 0);
  }
}

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

  .btn,
  .service__icon::before,
  .service__icon::after,
  .service__body,
  .field__readout {
    transition: none;
  }

  .hero__copy,
  .field,
  .field__path,
  .field__pulse,
  .listen__dot,
  .marquee__track {
    animation: none;
  }

  .field__signal {
    display: none;
  }
}