:root {
  --ink: #122028;
  --muted: #5f6d75;
  --line: #dbe4e5;
  --paper: #f8faf8;
  --panel: #ffffff;
  --blue: #1d5e89;
  --blue-deep: #123e5a;
  --green: #2d7b61;
  --gold: #c98c2e;
  --shadow: 0 20px 60px rgba(18, 32, 40, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(18px, 4vw, 56px);
  background: rgba(248, 250, 248, 0.9);
  border-bottom: 1px solid rgba(219, 228, 229, 0.82);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  color: var(--blue-deep);
  font-size: 0.98rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.brand-mark {
  width: 36px;
  height: 36px;
  flex: 0 0 auto;
}

.nav {
  display: flex;
  gap: clamp(14px, 3vw, 32px);
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 650;
}

.nav a:hover {
  color: var(--blue);
}

.hero {
  min-height: calc(100vh - 74px);
  display: flex;
  align-items: center;
  padding: clamp(56px, 8vw, 112px) clamp(18px, 4vw, 56px);
  background:
    linear-gradient(90deg, rgba(248, 250, 248, 0.96) 0%, rgba(248, 250, 248, 0.9) 56%, rgba(248, 250, 248, 0.78) 100%),
    url("https://images.unsplash.com/photo-1580582932707-520aed937b7b?auto=format&fit=crop&w=1800&q=78");
  background-size: cover;
  background-position: center;
}

.hero-inner {
  width: min(1160px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.7fr);
  gap: clamp(30px, 6vw, 76px);
  align-items: center;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  margin: 0;
  color: var(--blue-deep);
  font-size: clamp(3.8rem, 12vw, 8.8rem);
  line-height: 0.86;
  letter-spacing: 0;
}

h2 {
  margin: 0;
  font-size: clamp(1.8rem, 4vw, 3.2rem);
  line-height: 1.05;
  letter-spacing: 0;
}

h3 {
  margin: 0 0 10px;
  font-size: 1rem;
  line-height: 1.25;
}

.hero-text {
  max-width: 680px;
  margin: 28px 0 0;
  color: #344650;
  font-size: clamp(1.08rem, 2vw, 1.32rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  max-width: 100%;
  padding: 13px 18px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-weight: 800;
  font-size: 0.94rem;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease, background 160ms ease;
}

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

.button-primary {
  color: #fff;
  background: var(--blue);
  box-shadow: 0 12px 24px rgba(29, 94, 137, 0.2);
}

.button-primary:hover {
  background: var(--blue-deep);
}

.button-secondary {
  color: var(--blue-deep);
  background: rgba(255, 255, 255, 0.74);
  border-color: rgba(29, 94, 137, 0.26);
}

.hero-panel {
  padding: clamp(22px, 4vw, 32px);
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(219, 228, 229, 0.95);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.panel-topline {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.signal-map {
  position: relative;
  height: 220px;
  margin: 24px 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    radial-gradient(circle at 50% 50%, rgba(255, 184, 28, 0.14), transparent 18%),
    linear-gradient(90deg, rgba(29, 94, 137, 0.075) 1px, transparent 1px),
    linear-gradient(0deg, rgba(45, 123, 97, 0.065) 1px, transparent 1px),
    #ffffff;
  background-size: 100% 100%, 100% 100%, 34px 34px, 34px 34px;
  overflow: hidden;
}

.signal-map::before,
.signal-map::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 104px;
  height: 104px;
  border: 1px solid rgba(18, 62, 90, 0.1);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  box-shadow: 0 16px 30px rgba(18, 32, 40, 0.08);
  pointer-events: none;
}

.signal-map::after {
  width: 164px;
  height: 164px;
  border-color: rgba(0, 122, 77, 0.09);
  box-shadow: none;
}

.system-line {
  position: absolute;
  left: 50%;
  top: 50%;
  background: linear-gradient(90deg, transparent, rgba(18, 62, 90, 0.82), transparent);
  opacity: 0.88;
  transform: translate(-50%, -50%);
}

.system-line-vertical {
  width: 2px;
  height: 174px;
  background: linear-gradient(180deg, transparent, rgba(18, 62, 90, 0.82), transparent);
}

.system-line-horizontal {
  width: 300px;
  height: 2px;
}

.system-line-diagonal-a,
.system-line-diagonal-b {
  width: 248px;
  height: 2px;
}

.system-line-diagonal-a {
  transform: translate(-50%, -50%) rotate(34deg);
}

.system-line-diagonal-b {
  transform: translate(-50%, -50%) rotate(-34deg);
}

.system-node {
  position: absolute;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 78px;
  min-height: 34px;
  padding: 8px 10px;
  border: 1px solid rgba(18, 62, 90, 0.14);
  border-radius: 6px;
  color: var(--blue-deep);
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 14px 28px rgba(18, 32, 40, 0.12), inset 0 1px 0 rgba(255, 255, 255, 0.92);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transform: translate(-50%, -50%);
  z-index: 2;
}

.system-node-center {
  left: 50%;
  top: 50%;
  min-width: 92px;
  min-height: 48px;
  color: #101820;
  background:
    radial-gradient(circle at 34% 28%, rgba(255, 255, 255, 0.92), rgba(255, 255, 255, 0.24) 18%, transparent 32%),
    var(--gold);
  border-color: rgba(255, 184, 28, 0.54);
  box-shadow: 0 0 0 8px rgba(255, 184, 28, 0.12), 0 0 36px rgba(255, 184, 28, 0.32), 0 18px 30px rgba(18, 32, 40, 0.14);
  animation: center-breathe 3.8s ease-in-out infinite;
}

.system-node-top {
  left: 50%;
  top: 17%;
  color: #101820;
  background: #fff;
}

.system-node-right {
  left: 80%;
  top: 50%;
  color: #fff;
  background: rgba(0, 122, 77, 0.92);
}

.system-node-bottom {
  left: 50%;
  top: 83%;
  color: #fff;
  background: rgba(18, 62, 90, 0.92);
}

.system-node-left {
  left: 20%;
  top: 50%;
  color: #fff;
  background: rgba(222, 56, 49, 0.92);
}

.system-node-events {
  left: 28%;
  top: 25%;
  background: #fff;
}

.system-node-comms {
  left: 72%;
  top: 75%;
  color: #101820;
  background: rgba(255, 184, 28, 0.92);
}

.data-pulse {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 30px;
  height: 6px;
  border-radius: 999px;
  background: var(--gold);
  filter: blur(1px);
  opacity: 0;
  transform-origin: left center;
  animation: system-pulse 2.8s linear infinite;
}

.pulse-top {
  --distance: -76px;
  --angle: -90deg;
  animation-delay: 0s;
}

.pulse-right {
  --distance: 118px;
  --angle: 0deg;
  background: #9ed3bd;
  animation-delay: -0.7s;
}

.pulse-bottom {
  --distance: 76px;
  --angle: 90deg;
  background: #8bb8d0;
  animation-delay: -1.4s;
}

.pulse-left {
  --distance: -118px;
  --angle: 180deg;
  background: #f3a29d;
  animation-delay: -2.1s;
}

.pulse-events {
  --distance: -96px;
  --angle: 214deg;
  background: #ffffff;
  animation-delay: -1s;
}

.pulse-comms {
  --distance: 96px;
  --angle: 34deg;
  background: var(--gold);
  animation-delay: -1.8s;
}

@keyframes center-breathe {
  0%,
  100% {
    box-shadow: 0 0 0 8px rgba(255, 184, 28, 0.1), 0 0 28px rgba(255, 184, 28, 0.24), 0 18px 30px rgba(18, 32, 40, 0.12);
  }

  50% {
    box-shadow: 0 0 0 13px rgba(255, 184, 28, 0.16), 0 0 42px rgba(255, 184, 28, 0.34), 0 20px 34px rgba(18, 32, 40, 0.16);
  }
}

@keyframes system-pulse {
  0% {
    opacity: 0;
    transform: rotate(var(--angle)) translateX(24px);
  }

  18%,
  72% {
    opacity: 0.9;
  }

  100% {
    opacity: 0;
    transform: rotate(var(--angle)) translateX(var(--distance));
  }
}

@media (prefers-reduced-motion: reduce) {
  .data-pulse,
  .system-node-center {
    animation: none;
  }
}

.trust-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.trust-list li {
  padding-left: 22px;
  position: relative;
  color: #344650;
  font-weight: 650;
}

.trust-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
}

.section,
.cta,
.site-footer {
  width: min(1160px, calc(100% - 36px));
  margin: 0 auto;
}

.section {
  padding: clamp(56px, 9vw, 104px) 0;
}

.section-heading {
  max-width: 780px;
  margin-bottom: 30px;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.service-grid article {
  min-height: 174px;
  padding: 22px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.service-grid p {
  margin: 0;
  color: var(--muted);
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(280px, 1fr);
  gap: clamp(24px, 6vw, 76px);
  align-items: start;
  border-top: 1px solid var(--line);
}

.focus-list {
  display: grid;
  gap: 10px;
}

.focus-list span,
.challenge-grid div {
  padding: 15px 16px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: #344650;
  font-weight: 700;
}

.challenge-band {
  width: 100%;
  max-width: none;
  padding-inline: max(18px, calc((100vw - 1160px) / 2));
  background: #eaf2ef;
  border-block: 1px solid #d4e3de;
}

.challenge-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.steps li {
  min-height: 150px;
  padding: 18px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.steps span {
  display: block;
  margin-bottom: 38px;
  color: var(--gold);
  font-weight: 900;
}

.steps strong {
  display: block;
  line-height: 1.2;
}

.cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: clamp(46px, 8vw, 88px);
  padding: clamp(26px, 5vw, 42px);
  color: #fff;
  background: var(--blue-deep);
  border-radius: 8px;
}

.cta .eyebrow {
  color: #9ed3bd;
}

.cta h2 {
  max-width: 760px;
  font-size: clamp(1.55rem, 3vw, 2.5rem);
}

.cta .button-primary {
  flex: 0 0 auto;
  background: #fff;
  color: var(--blue-deep);
  box-shadow: none;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 26px 0 38px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.footer-brand {
  margin-bottom: 6px;
}

.site-footer p {
  margin: 0;
}

.site-footer > a {
  color: var(--blue);
  font-weight: 800;
}

@media (max-width: 900px) {
  .hero {
    min-height: auto;
  }

  .hero-inner,
  .split-section {
    grid-template-columns: 1fr;
  }

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

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

  .cta {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 640px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    padding-block: 14px;
  }

  .nav {
    width: 100%;
    justify-content: space-between;
  }

  .hero {
    padding-top: 46px;
  }

  .hero-actions,
  .button {
    width: 100%;
  }

  .hero-panel {
    padding: 18px;
  }

  .panel-topline {
    flex-direction: column;
  }

  .service-grid,
  .challenge-grid,
  .steps {
    grid-template-columns: 1fr;
  }

  .steps li {
    min-height: auto;
  }

  .steps span {
    margin-bottom: 20px;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }
}