* {
  box-sizing: border-box;
}

:root {
  --bg: #070a12;
  --bg-soft: #0d1220;
  --card: rgba(17, 24, 39, 0.72);
  --card-strong: #111827;
  --text: #f8fafc;
  --muted: #9ca3af;
  --line: rgba(255,255,255,0.10);
  --accent: #7c5cff;
  --accent-2: #00d4ff;
  --max: 1180px;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 18% 10%, rgba(124, 92, 255, 0.18), transparent 28%),
    radial-gradient(circle at 85% 35%, rgba(0, 212, 255, 0.12), transparent 25%),
    var(--bg);
  color: var(--text);
  font-family: "Segoe UI", Arial, sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

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

button {
  font: inherit;
}

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

.section {
  padding: 110px 0;
  position: relative;
}

.background-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, black, transparent 85%);
  z-index: -1;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  backdrop-filter: blur(18px);
  background: rgba(7, 10, 18, 0.62);
  border-bottom: 1px solid rgba(255,255,255,.06);
}

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

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  letter-spacing: .02em;
  font-size: 14px;
}

.brand-mark {
  width: 52px;
  height: 52px;
  padding: 8px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 14px;
  background: rgba(255,255,255,.96);
  box-shadow: 0 10px 30px rgba(0,0,0,.22);
  flex-shrink: 0;
}

.brand-logo {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
  font-size: 14px;
  color: #d1d5db;
}

.nav a {
  transition: color .2s ease;
}

.nav a:hover {
  color: white;
}

.nav-cta {
  border: 1px solid var(--line);
  padding: 10px 16px;
  border-radius: 999px;
}

.menu-toggle {
  display: none;
  background: none;
  border: 0;
  padding: 6px;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: white;
  margin: 5px 0;
}

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 150px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 60px;
  align-items: center;
}

.eyebrow {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .18em;
  color: var(--accent-2);
  margin-bottom: 18px;
}

h1, h2, h3 {
  font-family: "Segoe UI", Arial, sans-serif;
  margin-top: 0;
}

h1 {
  font-size: clamp(52px, 7vw, 88px);
  line-height: .98;
  letter-spacing: -.055em;
  margin-bottom: 30px;
}

h1 span {
  background: linear-gradient(90deg, #ffffff, #9edfff 55%, #a892ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-text {
  max-width: 650px;
  font-size: 18px;
  color: #b4bccb;
  margin: 0 0 22px;
}

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

.btn {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 52px;
  padding: 0 22px;
  border-radius: 14px;
  font-weight: 700;
  transition: transform .2s ease, border-color .2s ease, background .2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), #5b7cff 60%, var(--accent-2));
  color: white;
  box-shadow: 0 12px 40px rgba(92, 92, 255, .28);
}

.btn-secondary {
  border: 1px solid var(--line);
  background: rgba(255,255,255,.035);
}

.hero-meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.hero-meta div {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.hero-meta strong {
  font-size: 18px;
}

.hero-meta span {
  color: var(--muted);
  font-size: 12px;
}

.hero-visual {
  position: relative;
  min-height: 560px;
  display: grid;
  place-items: center;
}

.visual-card {
  position: relative;
  width: min(100%, 470px);
  aspect-ratio: .88;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 28px;
  background: linear-gradient(160deg, rgba(255,255,255,.08), rgba(255,255,255,.025));
  backdrop-filter: blur(18px);
  box-shadow: 0 40px 100px rgba(0,0,0,.38);
  overflow: hidden;
}

.visual-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(transparent 49.7%, rgba(255,255,255,.04) 50%, transparent 50.3%);
  background-size: 100% 20px;
  opacity: .35;
  pointer-events: none;
}

.visual-top,
.visual-footer {
  position: absolute;
  z-index: 2;
  left: 28px;
  right: 28px;
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  letter-spacing: .16em;
  color: #aeb7c7;
}

.visual-top {
  top: 26px;
}

.visual-footer {
  bottom: 26px;
}

.status {
  display: flex;
  align-items: center;
  gap: 8px;
}

.status i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #44f5a2;
  box-shadow: 0 0 16px #44f5a2;
}

.wireframe {
  height: 100%;
  display: grid;
  place-items: center;
  perspective: 900px;
}

.cube {
  position: relative;
  width: 170px;
  height: 170px;
  transform-style: preserve-3d;
  animation: rotateCube 16s linear infinite;
}

.face {
  position: absolute;
  width: 170px;
  height: 170px;
  border: 1px solid rgba(158, 223, 255, .7);
  background:
    linear-gradient(rgba(124,92,255,.08), rgba(0,212,255,.05)),
    repeating-linear-gradient(0deg, transparent 0 20px, rgba(255,255,255,.09) 21px),
    repeating-linear-gradient(90deg, transparent 0 20px, rgba(255,255,255,.09) 21px);
  box-shadow: inset 0 0 30px rgba(0,212,255,.06);
}

.front { transform: rotateY(0deg) translateZ(85px); }
.back { transform: rotateY(180deg) translateZ(85px); }
.right { transform: rotateY(90deg) translateZ(85px); }
.left { transform: rotateY(-90deg) translateZ(85px); }
.top { transform: rotateX(90deg) translateZ(85px); }
.bottom { transform: rotateX(-90deg) translateZ(85px); }

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(6px);
}

.orb-a {
  width: 220px;
  height: 220px;
  background: rgba(124,92,255,.19);
  right: -35px;
  top: 55px;
}

.orb-b {
  width: 150px;
  height: 150px;
  background: rgba(0,212,255,.14);
  left: 15px;
  bottom: 40px;
}

@keyframes rotateCube {
  from { transform: rotateX(-18deg) rotateY(0deg); }
  to { transform: rotateX(-18deg) rotateY(360deg); }
}

.split {
  display: grid;
  grid-template-columns: .85fr 1.15fr;
  gap: 90px;
}

.section-heading h2 {
  font-size: clamp(40px, 5vw, 64px);
  line-height: 1.02;
  letter-spacing: -.045em;
  margin-bottom: 22px;
}

.section-heading > p {
  max-width: 650px;
  color: var(--muted);
}

.about-copy {
  font-size: 20px;
  color: #c4cad4;
}

.about-copy p {
  margin-top: 0;
  margin-bottom: 28px;
}

.services-section {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(255,255,255,.015);
}

.cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin-top: 54px;
}

.service-card {
  min-height: 280px;
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: linear-gradient(145deg, rgba(255,255,255,.055), rgba(255,255,255,.018));
  transition: transform .25s ease, border-color .25s ease, background .25s ease;
}

.service-card:hover {
  transform: translateY(-5px);
  border-color: rgba(124,92,255,.45);
  background: linear-gradient(145deg, rgba(124,92,255,.09), rgba(0,212,255,.03));
}

.service-number {
  color: var(--accent-2);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .15em;
  margin-bottom: 70px;
}

.service-card h3 {
  font-size: 28px;
  margin-bottom: 12px;
}

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

.process {
  margin-top: 52px;
  border-top: 1px solid var(--line);
}

.process-item {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 28px;
  padding: 32px 0;
  border-bottom: 1px solid var(--line);
}

.process-item > span {
  color: var(--accent-2);
  font-size: 14px;
}

.process-item h3 {
  font-size: 26px;
  margin-bottom: 8px;
}

.process-item p {
  color: var(--muted);
  max-width: 760px;
  margin: 0;
}

.contact-card {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 60px;
  align-items: end;
  padding: 56px;
  border: 1px solid var(--line);
  border-radius: 30px;
  background:
    radial-gradient(circle at 75% 15%, rgba(0,212,255,.11), transparent 27%),
    radial-gradient(circle at 10% 100%, rgba(124,92,255,.18), transparent 35%),
    rgba(255,255,255,.025);
}

.contact-card h2 {
  font-size: clamp(44px, 6vw, 72px);
  line-height: 1;
  letter-spacing: -.05em;
  margin-bottom: 20px;
}

.contact-card p {
  color: var(--muted);
  max-width: 650px;
}

.contact-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.contact-note {
  margin: 14px 0 0;
  font-size: 13px;
}

.site-footer {
  padding: 54px 0 26px;
  border-top: 1px solid var(--line);
  background: rgba(255,255,255,.012);
}

.footer-main {
  display: grid;
  grid-template-columns: 1.6fr .8fr .8fr;
  gap: 54px;
  padding-bottom: 38px;
}

.footer-brand-block {
  max-width: 440px;
}

.footer-description {
  color: var(--muted);
  font-size: 14px;
  margin: 18px 0 0;
}

.footer-column {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
}

.footer-column h3 {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: #d7dce5;
  margin-bottom: 4px;
}

.footer-column a,
.footer-column span {
  color: var(--muted);
  font-size: 14px;
}

.footer-column a:hover {
  color: white;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.footer-bottom p {
  color: var(--muted);
  font-size: 12px;
  margin: 0;
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .7s ease, transform .7s ease;
}

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

.delay-1 { transition-delay: .12s; }
.delay-2 { transition-delay: .22s; }

.legal-page {
  min-height: 100vh;
  padding: 130px 0 90px;
}
.legal-shell {
  width: min(calc(100% - 40px), 860px);
  margin: 0 auto;
}
.legal-back {
  display: inline-flex;
  margin-bottom: 36px;
  color: #9ca3af;
  font-size: 14px;
}
.legal-back:hover { color: white; }
.legal-page h1 {
  font-size: clamp(42px, 7vw, 68px);
  margin-bottom: 18px;
}
.legal-intro {
  color: #b7bfcc;
  font-size: 18px;
  margin-bottom: 46px;
}
.legal-section {
  padding: 26px 0;
  border-top: 1px solid var(--line);
}
.legal-section h2 {
  font-size: 24px;
  margin-bottom: 12px;
}
.legal-section p,
.legal-section li {
  color: #aeb6c3;
}
.legal-section ul {
  padding-left: 20px;
}
.legal-note {
  margin-top: 36px;
  padding: 18px 20px;
  border: 1px solid rgba(124,92,255,.35);
  border-radius: 14px;
  background: rgba(124,92,255,.06);
  color: #c8cfda;
  font-size: 13px;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .cube { animation: none; }
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

@media (max-width: 900px) {
  .section {
    padding: 84px 0;
  }

  .hero-grid,
  .split,
  .contact-card {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 120px;
  }

  .hero-visual {
    min-height: 470px;
  }

  .split {
    gap: 35px;
  }

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

  .contact-card {
    padding: 38px 28px;
  }

  .footer-main {
    grid-template-columns: 1fr;
    gap: 32px;
  }

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

@media (max-width: 720px) {
  .container {
    width: min(calc(100% - 28px), var(--max));
  }

  .menu-toggle {
    display: block;
    cursor: pointer;
  }

  .nav {
    position: absolute;
    top: 76px;
    left: 14px;
    right: 14px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 14px;
    background: rgba(12,17,29,.96);
    border: 1px solid var(--line);
    border-radius: 18px;
    box-shadow: 0 20px 60px rgba(0,0,0,.35);
  }

  .nav.open {
    display: flex;
  }

  .nav a {
    padding: 14px;
  }

  .nav-cta {
    border-radius: 12px;
  }

  .brand {
    max-width: 78%;
  }

  .brand-mark {
    width: 46px;
    height: 46px;
  }

  h1 {
    font-size: clamp(46px, 14vw, 68px);
  }

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

  .hero-visual {
    min-height: 410px;
  }

  .visual-card {
    width: min(100%, 390px);
  }

  .cube,
  .face {
    width: 135px;
    height: 135px;
  }

  .front { transform: rotateY(0deg) translateZ(67.5px); }
  .back { transform: rotateY(180deg) translateZ(67.5px); }
  .right { transform: rotateY(90deg) translateZ(67.5px); }
  .left { transform: rotateY(-90deg) translateZ(67.5px); }
  .top { transform: rotateX(90deg) translateZ(67.5px); }
  .bottom { transform: rotateX(-90deg) translateZ(67.5px); }

  .process-item {
    grid-template-columns: 48px 1fr;
    gap: 16px;
  }
}


/* --- Updated branding with symbol + wordmark PNG --- */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  letter-spacing: 0;
  font-size: 14px;
  max-width: 100%;
}

.brand-mark {
  width: 52px;
  height: 52px;
  padding: 0;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  flex-shrink: 0;
}

.brand-logo {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.brand-wordmark-wrap {
  display: inline-flex;
  align-items: center;
  min-width: 0;
}

.brand-wordmark {
  width: 105px;
  max-width: 100%;
  height: auto;
  display: block;
}

.footer-description {
  color: var(--muted);
  font-size: 14px;
  margin: 18px 0 0;
}

@media (max-width: 720px) {
  .brand {
    max-width: 78%;
    gap: 10px;
  }

  .brand-mark {
    width: 40px;
    height: 40px;
  }

  .brand-wordmark {
    width: 75px;
  }

  }


/* --- Multi-shape wireframe hero visual --- */
.shape-stage {
  position: relative;
  width: 250px;
  height: 250px;
  display: grid;
  place-items: center;
}

.shape {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  opacity: 0;
  transform: scale(.92);
  transition: opacity .8s ease, transform .8s ease;
  pointer-events: none;
}

.shape.active {
  opacity: 1;
  transform: scale(1);
}

.shape-cube .cube {
  position: relative;
  width: 170px;
  height: 170px;
  transform-style: preserve-3d;
  animation: rotateCube 16s linear infinite;
}

.face {
  position: absolute;
  width: 170px;
  height: 170px;
  border: 1px solid rgba(158, 223, 255, .7);
  background:
    linear-gradient(rgba(124,92,255,.08), rgba(0,212,255,.05)),
    repeating-linear-gradient(0deg, transparent 0 20px, rgba(255,255,255,.09) 21px),
    repeating-linear-gradient(90deg, transparent 0 20px, rgba(255,255,255,.09) 21px);
  box-shadow: inset 0 0 30px rgba(0,212,255,.06);
}

.front { transform: rotateY(0deg) translateZ(85px); }
.back { transform: rotateY(180deg) translateZ(85px); }
.right { transform: rotateY(90deg) translateZ(85px); }
.left { transform: rotateY(-90deg) translateZ(85px); }
.top { transform: rotateX(90deg) translateZ(85px); }
.bottom { transform: rotateX(-90deg) translateZ(85px); }

.shape-pyramid .pyramid {
  position: relative;
  width: 180px;
  height: 180px;
  transform-style: preserve-3d;
  animation: rotatePyramid 12s linear infinite;
}

.pyramid-face {
  position: absolute;
  left: 50%;
  bottom: 34px;
  width: 0;
  height: 0;
  border-left: 60px solid transparent;
  border-right: 60px solid transparent;
  border-bottom: 125px solid rgba(124,92,255,.10);
  transform-origin: 50% 100%;
  filter: drop-shadow(0 0 10px rgba(0,212,255,.12));
}

.pyramid-face::after {
  content: "";
  position: absolute;
  left: -60px;
  top: 0;
  width: 120px;
  height: 125px;
  clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
  border: 1px solid rgba(158, 223, 255, .7);
  box-shadow: inset 0 0 18px rgba(0,212,255,.06);
  background:
    linear-gradient(rgba(124,92,255,.05), rgba(0,212,255,.03)),
    repeating-linear-gradient(0deg, transparent 0 18px, rgba(255,255,255,.07) 19px),
    repeating-linear-gradient(90deg, transparent 0 18px, rgba(255,255,255,.07) 19px);
}

.pf-1 { transform: translateX(-50%) rotateY(0deg) translateZ(32px); }
.pf-2 { transform: translateX(-50%) rotateY(90deg) translateZ(32px); }
.pf-3 { transform: translateX(-50%) rotateY(180deg) translateZ(32px); }
.pf-4 { transform: translateX(-50%) rotateY(-90deg) translateZ(32px); }

.pyramid-base {
  position: absolute;
  width: 120px;
  height: 120px;
  left: 50%;
  top: 96px;
  transform: translateX(-50%) rotateX(90deg);
  border: 1px solid rgba(158, 223, 255, .7);
  background:
    linear-gradient(rgba(124,92,255,.06), rgba(0,212,255,.03)),
    repeating-linear-gradient(0deg, transparent 0 18px, rgba(255,255,255,.07) 19px),
    repeating-linear-gradient(90deg, transparent 0 18px, rgba(255,255,255,.07) 19px);
}

.shape-sphere .sphere-wire {
  position: relative;
  width: 185px;
  height: 185px;
  display: grid;
  place-items: center;
  animation: rotateSphere 12s linear infinite;
}

.shape-sphere .sphere-wire::before {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid rgba(158, 223, 255, .75);
  border-radius: 50%;
  box-shadow: inset 0 0 22px rgba(0,212,255,.08);
}

.ring {
  position: absolute;
  border: 1px solid rgba(158, 223, 255, .68);
  border-radius: 50%;
  box-shadow: inset 0 0 16px rgba(0,212,255,.05);
}

.ring-1 {
  width: 185px;
  height: 80px;
  transform: rotateX(70deg);
}

.ring-2 {
  width: 185px;
  height: 80px;
  transform: rotateX(70deg) rotateZ(60deg);
}

.ring-3 {
  width: 185px;
  height: 80px;
  transform: rotateX(70deg) rotateZ(120deg);
}

.ring-4 {
  width: 90px;
  height: 185px;
  transform: rotateY(70deg);
}

.ring-5 {
  width: 145px;
  height: 145px;
}

@keyframes rotatePyramid {
  from { transform: rotateX(-18deg) rotateY(0deg); }
  to { transform: rotateX(-18deg) rotateY(360deg); }
}

@keyframes rotateSphere {
  from { transform: rotateY(0deg) rotateX(18deg); }
  to { transform: rotateY(360deg) rotateX(18deg); }
}


@media (max-width: 720px) {
  .shape-stage {
    width: 210px;
    height: 210px;
  }

  .shape-cube .cube,
  .face {
    width: 135px;
    height: 135px;
  }

  .front { transform: rotateY(0deg) translateZ(67.5px); }
  .back { transform: rotateY(180deg) translateZ(67.5px); }
  .right { transform: rotateY(90deg) translateZ(67.5px); }
  .left { transform: rotateY(-90deg) translateZ(67.5px); }
  .top { transform: rotateX(90deg) translateZ(67.5px); }
  .bottom { transform: rotateX(-90deg) translateZ(67.5px); }

  .shape-pyramid .pyramid {
    width: 150px;
    height: 150px;
  }

  .pyramid-face {
    border-left-width: 48px;
    border-right-width: 48px;
    border-bottom-width: 100px;
    bottom: 28px;
  }

  .pyramid-face::after {
    left: -48px;
    width: 96px;
    height: 100px;
  }

  .pyramid-base {
    width: 96px;
    height: 96px;
    top: 82px;
  }

  .shape-sphere .sphere-wire {
    width: 155px;
    height: 155px;
  }

  .shape-sphere .sphere-wire::before,
  .ring-5 {
    width: 155px;
    height: 155px;
  }

  .ring-1, .ring-2, .ring-3 {
    width: 155px;
    height: 68px;
  }

  .ring-4 {
    width: 74px;
    height: 155px;
  }
}


/* === Telecom CSS 3D models === */

.shape-radio-unit .radio-unit,
.shape-network-node .network-node {
  position: relative;
  width: 210px;
  height: 210px;
  transform-style: preserve-3d;
}

.shape-radio-unit .radio-unit {
  animation: rotateRadioUnit 14s linear infinite;
}

.shape-network-node .network-node {
  animation: rotateNetworkNode 16s linear infinite;
}

/* Radio / base-station unit */
.radio-body,
.radio-side,
.radio-top,
.radio-bottom {
  position: absolute;
  border: 1px solid rgba(157, 224, 255, .78);
  background:
    linear-gradient(145deg, rgba(124,92,255,.10), rgba(0,212,255,.045)),
    repeating-linear-gradient(0deg, transparent 0 15px, rgba(255,255,255,.035) 16px);
  box-shadow:
    inset 0 0 24px rgba(0,212,255,.05),
    0 0 18px rgba(0,212,255,.035);
  backface-visibility: visible;
}

.radio-body {
  width: 126px;
  height: 150px;
  left: 42px;
  top: 36px;
}

.front-panel { transform: translateZ(34px); }
.back-panel { transform: rotateY(180deg) translateZ(34px); }

.radio-side {
  width: 68px;
  height: 150px;
  top: 36px;
  left: 71px;
}
.radio-left  { transform: rotateY(-90deg) translateZ(63px); }
.radio-right { transform: rotateY(90deg) translateZ(63px); }

.radio-top,
.radio-bottom {
  width: 126px;
  height: 68px;
  left: 42px;
}
.radio-top {
  top: 2px;
  transform: rotateX(90deg) translateZ(-34px);
}
.radio-bottom {
  top: 152px;
  transform: rotateX(-90deg) translateZ(-34px);
}

.vent {
  position: absolute;
  left: 18px;
  width: 90px;
  height: 2px;
  background: rgba(158,223,255,.65);
  box-shadow: 0 0 8px rgba(0,212,255,.25);
}
.v1 { top: 34px; }
.v2 { top: 48px; }
.v3 { top: 62px; }

.status-led {
  position: absolute;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  bottom: 22px;
  background: rgba(110,255,190,.9);
  box-shadow: 0 0 10px rgba(90,255,190,.85);
}
.led-a { left: 26px; }
.led-b { left: 44px; opacity: .65; }
.led-c { left: 62px; opacity: .4; }

.antenna {
  position: absolute;
  top: -42px;
  transform-style: preserve-3d;
}
.antenna-a { left: 68px; }
.antenna-b { left: 135px; }

.antenna-rod {
  display: block;
  width: 4px;
  height: 64px;
  background: linear-gradient(to top, rgba(158,223,255,.28), rgba(255,255,255,.95));
  box-shadow: 0 0 10px rgba(0,212,255,.25);
}
.antenna-tip {
  position: absolute;
  left: -3px;
  top: -5px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 1px solid rgba(158,223,255,.9);
  background: rgba(0,212,255,.15);
}

.signal-ring {
  position: absolute;
  left: 105px;
  top: -7px;
  border: 1px solid rgba(158,223,255,.36);
  border-radius: 50%;
  transform: translate(-50%, -50%) rotateX(72deg);
  animation: signalPulse 2.8s ease-out infinite;
}
.sr-1 { width: 42px; height: 42px; animation-delay: 0s; }
.sr-2 { width: 76px; height: 76px; animation-delay: .5s; }
.sr-3 { width: 112px; height: 112px; animation-delay: 1s; }

/* Network / telecom node */
.node-core {
  position: absolute;
  left: 41px;
  top: 56px;
  width: 128px;
  height: 92px;
  transform-style: preserve-3d;
}

.node-face {
  position: absolute;
  border: 1px solid rgba(158,223,255,.72);
  background:
    linear-gradient(145deg, rgba(124,92,255,.11), rgba(0,212,255,.045)),
    repeating-linear-gradient(0deg, transparent 0 13px, rgba(255,255,255,.035) 14px);
  box-shadow: inset 0 0 24px rgba(0,212,255,.045);
}

.node-front,
.node-back {
  width: 128px;
  height: 92px;
}
.node-front { transform: translateZ(38px); }
.node-back  { transform: rotateY(180deg) translateZ(38px); }

.node-left,
.node-right {
  width: 76px;
  height: 92px;
  left: 26px;
}
.node-left  { transform: rotateY(-90deg) translateZ(64px); }
.node-right { transform: rotateY(90deg) translateZ(64px); }

.node-top,
.node-bottom {
  width: 128px;
  height: 76px;
  top: 8px;
}
.node-top    { transform: rotateX(90deg) translateZ(46px); }
.node-bottom { transform: rotateX(-90deg) translateZ(46px); }

.port {
  position: absolute;
  width: 20px;
  height: 13px;
  border: 1px solid rgba(158,223,255,.75);
  background: rgba(0,212,255,.07);
  box-shadow: inset 0 0 7px rgba(0,212,255,.08);
}
.p1 { left: 16px; top: 22px; }
.p2 { left: 42px; top: 22px; }
.p3 { left: 68px; top: 22px; }
.p4 { left: 16px; top: 44px; }
.p5 { left: 42px; top: 44px; }
.p6 { left: 68px; top: 44px; }

.node-display {
  position: absolute;
  right: 9px;
  bottom: 9px;
  font-size: 7px;
  letter-spacing: .12em;
  color: rgba(170,235,255,.85);
}

.side-module {
  position: absolute;
  top: 81px;
  width: 30px;
  height: 54px;
  border: 1px solid rgba(158,223,255,.55);
  background: rgba(0,212,255,.03);
  transform-style: preserve-3d;
}
.module-left {
  left: 13px;
  transform: translateZ(6px) rotateY(-12deg);
}
.module-right {
  right: 13px;
  transform: translateZ(6px) rotateY(12deg);
}
.side-module span {
  position: absolute;
  left: 7px;
  width: 16px;
  height: 2px;
  background: rgba(158,223,255,.55);
}
.side-module span:nth-child(1) { top: 13px; }
.side-module span:nth-child(2) { top: 25px; }
.side-module span:nth-child(3) { top: 37px; }

.node-ring {
  position: absolute;
  left: 105px;
  top: 105px;
  border: 1px solid rgba(158,223,255,.20);
  border-radius: 50%;
  transform: translate(-50%, -50%) rotateX(68deg);
}
.nr-1 { width: 185px; height: 185px; }
.nr-2 { width: 135px; height: 135px; transform: translate(-50%, -50%) rotateY(68deg); }

@keyframes rotateRadioUnit {
  0%   { transform: rotateX(-12deg) rotateY(0deg); }
  50%  { transform: rotateX(10deg) rotateY(180deg); }
  100% { transform: rotateX(-12deg) rotateY(360deg); }
}

@keyframes rotateNetworkNode {
  0%   { transform: rotateX(-8deg) rotateY(0deg) rotateZ(0deg); }
  50%  { transform: rotateX(8deg) rotateY(180deg) rotateZ(2deg); }
  100% { transform: rotateX(-8deg) rotateY(360deg) rotateZ(0deg); }
}

@keyframes signalPulse {
  0%   { opacity: 0; transform: translate(-50%, -50%) rotateX(72deg) scale(.7); }
  35%  { opacity: .8; }
  100% { opacity: 0; transform: translate(-50%, -50%) rotateX(72deg) scale(1.18); }
}

@media (max-width: 720px) {
  .shape-radio-unit .radio-unit,
  .shape-network-node .network-node {
    transform: scale(.86);
  }
}


/* === Real GLB model in hero === */
.glb-stage {
  position: relative;
  overflow: hidden;
}

.hero-model {
  width: 100%;
  height: 100%;
  min-height: 420px;
  display: block;
  background: transparent;
  --poster-color: transparent;
}

.hero-model::part(default-progress-bar) {
  display: none;
}

@media (max-width: 720px) {
  .hero-model {
    min-height: 340px;
  }
}


/* === Three.js GLB viewer === */
.glb-stage {
  position: relative;
  overflow: hidden;
}

.hero-3d-canvas {
  width: 100%;
  height: 100%;
  min-height: 420px;
  display: block;
  cursor: grab;
  touch-action: none;
}

.hero-3d-canvas:active {
  cursor: grabbing;
}

.model-loading,
.model-error {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  color: rgba(220, 235, 245, .72);
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
  pointer-events: none;
}

.model-error {
  color: #ffb4b4;
}

@media (max-width: 720px) {
  .hero-3d-canvas {
    min-height: 340px;
  }
}


/* Fully local WebGL viewer: no CDN or external runtime dependency. */


/* === Hero carousel: CSS cube <-> local GLB === */
.glb-stage {
  position: relative;
  overflow: hidden;
}

.hero-layer {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  opacity: 0;
  transform: scale(.96);
  transition: opacity .85s ease, transform .85s ease;
  pointer-events: none;
}

.hero-layer.active {
  opacity: 1;
  transform: scale(1);
  pointer-events: auto;
}

.cube-layer {
  perspective: 900px;
  z-index: 2;
}

.glb-layer {
  z-index: 1;
}

.cube-layer .cube {
  position: relative;
  width: 170px;
  height: 170px;
  transform-style: preserve-3d;
  animation: rotateCubeHero 16s linear infinite;
}

.cube-layer .face {
  position: absolute;
  width: 170px;
  height: 170px;
  border: 1px solid rgba(158, 223, 255, .74);
  background:
    linear-gradient(rgba(124,92,255,.08), rgba(0,212,255,.05)),
    repeating-linear-gradient(0deg, transparent 0 20px, rgba(255,255,255,.09) 21px),
    repeating-linear-gradient(90deg, transparent 0 20px, rgba(255,255,255,.09) 21px);
  box-shadow:
    inset 0 0 30px rgba(0,212,255,.07),
    0 0 18px rgba(0,212,255,.035);
}

.cube-layer .front  { transform: rotateY(0deg) translateZ(85px); }
.cube-layer .back   { transform: rotateY(180deg) translateZ(85px); }
.cube-layer .right  { transform: rotateY(90deg) translateZ(85px); }
.cube-layer .left   { transform: rotateY(-90deg) translateZ(85px); }
.cube-layer .top    { transform: rotateX(90deg) translateZ(85px); }
.cube-layer .bottom { transform: rotateX(-90deg) translateZ(85px); }

@keyframes rotateCubeHero {
  from { transform: rotateX(-18deg) rotateY(0deg); }
  to   { transform: rotateX(-18deg) rotateY(360deg); }
}

@media (max-width: 720px) {
  .cube-layer .cube,
  .cube-layer .face {
    width: 135px;
    height: 135px;
  }

  .cube-layer .front  { transform: rotateY(0deg) translateZ(67.5px); }
  .cube-layer .back   { transform: rotateY(180deg) translateZ(67.5px); }
  .cube-layer .right  { transform: rotateY(90deg) translateZ(67.5px); }
  .cube-layer .left   { transform: rotateY(-90deg) translateZ(67.5px); }
  .cube-layer .top    { transform: rotateX(90deg) translateZ(67.5px); }
  .cube-layer .bottom { transform: rotateX(-90deg) translateZ(67.5px); }
}

/* === HR / EN language switch === */
.language-switch {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-left: 2px;
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: rgba(255,255,255,.02);
}
.lang-btn {
  appearance: none;
  border: 0;
  padding: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
  cursor: pointer;
}
.lang-btn:hover,
.lang-btn.active { color: #fff; }
.language-switch > span { opacity: .4; font-size: 11px; }
.legal-language-switch {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 12px;
}
@media (max-width: 720px) {
  .language-switch {
    margin: 8px 14px 4px;
    width: fit-content;
  }
}


/* Protocosm v17 — restrained motion system (no external libraries) */
/* Text reveal — the two title lines are staggered, translation works in-place. */
/* Animate the heading as a whole: keeping gradient spans inline prevents
   glyph descenders (j, p, etc.) being clipped by inline-block text backgrounds. */
@media (prefers-reduced-motion: no-preference) {
  .hero-title-motion {
    animation: proto-title-enter .85s cubic-bezier(.2,.8,.2,1) both;
  }
  @keyframes proto-title-enter {
    from { opacity: 0; transform: translateY(22px); filter: blur(5px); }
    to { opacity: 1; transform: translateY(0); filter: blur(0); }
  }
}

/* Scroll reveal with clear but quiet timing, overridden for reduced motion. */
.reveal { transition-duration: .8s; transition-timing-function: cubic-bezier(.2,.75,.2,1); }

/* Animated navigation underline. Keep the pill contact button intact. */
@media (hover: hover) and (pointer: fine) {
  .nav a:not(.nav-cta) { position: relative; }
  .nav a:not(.nav-cta)::after {
    content: ''; position: absolute; left: 0; right: 0; bottom: -7px;
    height: 2px; border-radius: 2px;
    background: linear-gradient(90deg, var(--accent-2), var(--accent));
    transform: scaleX(0); transform-origin: left;
    transition: transform .3s ease;
  }
  .nav a:not(.nav-cta):hover::after,
  .nav a:not(.nav-cta).is-current::after { transform: scaleX(1); }
}
.nav a.is-current { color: #fff; }
.nav a:focus-visible, .btn:focus-visible { outline: 2px solid var(--accent-2); outline-offset: 4px; }

/* Fine border glow on service cards, pointer devices only. */
.service-card { position: relative; isolation: isolate; overflow: hidden; }
.service-card::before {
  content: ''; position: absolute; inset: 0; z-index: -1;
  background: radial-gradient(350px circle at var(--glow-x,50%) var(--glow-y,50%), rgba(0,212,255,.095), transparent 70%);
  opacity: 0; transition: opacity .35s ease; pointer-events: none;
}
@media (hover: hover) and (pointer: fine) {
  .service-card:hover::before { opacity: 1; }
  .service-card:hover { box-shadow: 0 14px 36px rgba(0,0,0,.16), 0 0 22px rgba(0,212,255,.055); }
}

/* Animated technical lines in the workflow section. */
.process-item { position: relative; }
.process-item::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: -1px;
  height: 1px; pointer-events: none;
  background: linear-gradient(90deg, var(--accent-2), rgba(124,92,255,.65), transparent 85%);
  transform: scaleX(0); transform-origin: left;
  transition: transform 1s cubic-bezier(.2,.75,.2,1);
}
.process-item.visible::after { transform: scaleX(1); }

@media (prefers-reduced-motion: reduce) {
  .hero-title-motion { animation: none !important; filter: none !important; opacity: 1 !important; transform: none !important; }
  .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
  .process-item::after { transform: none; transition: none; }
  .service-card, .service-card::before, .nav a::after { transition: none !important; }
  .service-card:hover { transform: none; }
}