:root {
  --bg: #0b0f1a;
  --bg-deep: #060810;
  --accent: #4ad3ff;
  --accent-soft: rgba(74, 211, 255, 0.15);
  --glow: rgba(74, 211, 255, 0.35);
  --text: #f2f6ff;
  --muted: #99a4c2;
  --panel: rgba(12, 20, 40, 0.85);
  --panel-border: rgba(74, 211, 255, 0.2);
  --shadow: 0 30px 60px rgba(5, 10, 25, 0.7);

  /* Glow effect variables */
  --glow-text-subtle: 0 0 8px rgba(74, 211, 255, 0.25);
  --glow-text-medium: 0 0 10px rgba(74, 211, 255, 0.3);
  --glow-text-strong: 0 0 15px rgba(74, 211, 255, 0.4);
  --glow-box-subtle: 0 0 15px rgba(74, 211, 255, 0.2);
  --glow-box-medium: 0 0 20px rgba(74, 211, 255, 0.3);
  --glow-box-strong: 0 0 25px rgba(74, 211, 255, 0.4);

  /* Accent color with various opacities */
  --accent-05: rgba(74, 211, 255, 0.05);
  --accent-08: rgba(74, 211, 255, 0.08);
  --accent-12: rgba(74, 211, 255, 0.12);
  --accent-15: rgba(74, 211, 255, 0.15);
  --accent-18: rgba(74, 211, 255, 0.18);
  --accent-20: rgba(74, 211, 255, 0.2);
  --accent-25: rgba(74, 211, 255, 0.25);
  --accent-30: rgba(74, 211, 255, 0.3);
  --accent-35: rgba(74, 211, 255, 0.35);
  --accent-40: rgba(74, 211, 255, 0.4);
  --accent-50: rgba(74, 211, 255, 0.5);
  --accent-60: rgba(74, 211, 255, 0.6);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  color: var(--text);
  background: radial-gradient(circle at top left, var(--accent-12), transparent 55%),
    radial-gradient(circle at 20% 20%, rgba(80, 133, 255, 0.2), transparent 50%),
    linear-gradient(180deg, #0a0f1d 0%, #05070f 100%);
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    rgba(0, 0, 0, 0.15) 0px,
    transparent 1px,
    transparent 2px,
    rgba(0, 0, 0, 0.15) 3px
  );
  pointer-events: none;
  z-index: 9999;
  opacity: 0.3;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    radial-gradient(circle, var(--accent-40) 2px, transparent 2px);
  background-size: 350px 350px;
  background-position: 0 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.5;
  animation: particles-float-1 80s linear infinite;
}

@keyframes particles-float-1 {
  0% {
    transform: translate(0, 0);
  }
  100% {
    transform: translate(-100px, -150px);
  }
}

@keyframes particles-float-2 {
  0% {
    transform: translate(0, 0);
  }
  100% {
    transform: translate(80px, -120px);
  }
}

@keyframes particles-float-3 {
  0% {
    transform: translate(0, 0);
  }
  100% {
    transform: translate(-60px, 100px);
  }
}

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

.bg-grid {
  position: fixed;
  inset: 0;
  background-image: linear-gradient(var(--accent-08) 1px, transparent 1px),
    linear-gradient(90deg, var(--accent-08) 1px, transparent 1px);
  background-size: 70px 70px;
  opacity: 0.35;
  pointer-events: none;
  z-index: 0;
}

.bg-grid::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: radial-gradient(circle, var(--accent-35) 1.5px, transparent 1.5px);
  background-size: 280px 280px;
  background-position: 50px 30px;
  pointer-events: none;
  z-index: 1;
  opacity: 0.5;
  animation: particles-float-2 100s linear infinite;
}

.bg-grid::after {
  content: "";
  position: fixed;
  inset: 0;
  background-image: radial-gradient(circle, var(--accent-30) 1px, transparent 1px);
  background-size: 420px 420px;
  background-position: 100px 80px;
  pointer-events: none;
  z-index: 1;
  opacity: 0.5;
  animation: particles-float-3 120s linear infinite;
}

.bg-orb {
  position: fixed;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  filter: blur(80px);
  background: radial-gradient(circle, var(--accent-60) 0%, transparent 70%);
  opacity: 0.5;
  z-index: 0;
  animation: orb-pulse 8s ease-in-out infinite;
}

@keyframes orb-pulse {
  0%, 100% {
    opacity: 0.5;
    transform: scale(1);
  }
  50% {
    opacity: 0.65;
    transform: scale(1.1);
  }
}

.orb-one {
  top: -120px;
  right: -120px;
}

.orb-two {
  bottom: -180px;
  left: -120px;
  background: radial-gradient(circle, rgba(88, 120, 255, 0.5) 0%, transparent 70%);
  animation-delay: 4s;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 8vw;
  background: linear-gradient(180deg, rgba(6, 9, 20, 0.92) 0%, rgba(6, 9, 20, 0.4) 100%);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--accent-08);
}

.logo {
  height: 54px;
  width: auto;
}

.nav {
  display: flex;
  gap: 24px;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.lang-switch {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  color: var(--accent);
  border: 1px solid var(--accent-30);
  padding: 6px 12px;
  border-radius: 999px;
  transition: background 0.3s ease, color 0.3s ease, box-shadow 0.3s ease;
  text-shadow: var(--glow-text-subtle);
}

.lang-switch:hover {
  background: var(--accent-15);
  color: var(--text);
  box-shadow: var(--glow-box-subtle);
}

.nav a {
  position: relative;
  transition: color 0.3s ease;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 100%;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

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

.nav a:hover::after {
  transform: scaleX(1);
}

main {
  position: relative;
  z-index: 1;
}

.hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 48px;
  padding: 80px 8vw 40px;
  align-items: center;
}

.hero-copy h1 {
  font-size: clamp(2.6rem, 5vw, 4.2rem);
  margin: 16px 0 20px;
  line-height: 1.05;
  text-shadow: var(--glow-text-subtle);
}

.eyebrow {
  font-family: "JetBrains Mono", "Consolas", monospace;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.8rem;
  margin: 0;
  text-shadow: var(--glow-text-medium);
}

.lead {
  color: var(--muted);
  font-size: 1.1rem;
  max-width: 520px;
}

.hero-cta {
  display: flex;
  gap: 16px;
  margin: 28px 0 36px;
  flex-wrap: wrap;
}

.btn {
  padding: 12px 26px;
  border-radius: 999px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.85rem;
  border: 1px solid transparent;
  transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
}

.btn.primary {
  background: var(--accent);
  color: #05070f;
  box-shadow: 0 8px 20px var(--accent-20);
}

.btn.primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px var(--accent-30),
              var(--glow-box-subtle);
}

.btn.ghost {
  border-color: var(--accent-40);
  color: var(--text);
}

.btn.ghost:hover {
  background: var(--accent-12);
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 20px;
  margin-top: 16px;
}

.metric {
  font-size: 1.4rem;
  margin: 0;
  color: var(--accent);
  text-shadow: var(--glow-text-subtle);
}

.metric-label {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.hero-panel {
  display: grid;
  gap: 24px;
}

.panel-card {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  padding: 26px;
  border-radius: 20px;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
  transition: box-shadow 0.3s ease, border-color 0.3s ease;
}

.panel-card:hover {
  border-color: var(--accent-35);
  box-shadow: var(--shadow),
              var(--glow-box-strong),
              0 0 50px var(--accent-15);
}

.panel-card.secondary {
  background: rgba(10, 18, 34, 0.75);
}

.panel-title {
  margin: 0 0 20px;
  font-size: 1.2rem;
  text-shadow: var(--glow-text-medium);
}

.panel-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(120px, 1fr));
  gap: 16px;
}

.panel-label {
  margin: 0;
  color: var(--muted);
  font-size: 0.8rem;
}

.panel-value {
  margin: 4px 0 0;
  font-size: 1.4rem;
  color: var(--accent);
  text-shadow: var(--glow-text-subtle);
}

.panel-lines {
  position: absolute;
  inset: auto 0 0 0;
  display: flex;
  gap: 12px;
  padding: 0 20px 20px;
}

.panel-lines span {
  display: block;
  height: 3px;
  flex: 1;
  background: linear-gradient(90deg, transparent, var(--accent-60), transparent);
  animation: pulse 3s ease-in-out infinite;
}

.panel-lines span:nth-child(2) {
  animation-delay: 0.6s;
}

.panel-lines span:nth-child(3) {
  animation-delay: 1.2s;
}

.services,
.expertise,
.contact {
  padding: 60px 8vw;
}

.section-title h2 {
  margin: 12px 0 16px;
  font-size: clamp(2rem, 4vw, 3.2rem);
  text-shadow: var(--glow-text-medium);
}

.section-title p {
  color: var(--muted);
  max-width: 640px;
}

.service-grid {
  margin-top: 36px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.service-grid article {
  padding: 24px;
  border-radius: 18px;
  border: 1px solid var(--accent-18);
  background: rgba(9, 15, 28, 0.7);
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.service-grid article:hover {
  transform: translateY(-6px);
  border-color: var(--accent-50);
  box-shadow: var(--glow-box-medium),
              0 0 40px var(--accent-15),
              inset 0 0 20px var(--accent-05);
}

.service-grid h3 {
  margin: 0 0 10px;
  text-shadow: var(--glow-text-subtle);
}

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

.expertise-grid {
  margin-top: 32px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.expertise-card {
  padding: 22px;
  border-radius: 16px;
  background: linear-gradient(160deg, var(--accent-08), rgba(9, 13, 26, 0.85));
  border: 1px solid var(--accent-20);
  transition: box-shadow 0.3s ease, border-color 0.3s ease;
}

.expertise-card:hover {
  border-color: var(--accent-40);
  box-shadow: var(--glow-box-medium),
              0 0 40px var(--accent-12),
              inset 0 0 20px var(--accent-05);
}

.expertise-card h3 {
  text-shadow: var(--glow-text-subtle);
}

.contact {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 32px;
  align-items: center;
}

.contact-card {
  background: rgba(10, 18, 34, 0.8);
  border-radius: 18px;
  padding: 26px;
  border: 1px solid var(--accent-20);
  box-shadow: var(--shadow);
}

.contact-card a {
  display: block;
  margin-bottom: 18px;
  font-size: 1.1rem;
  color: var(--accent);
  text-shadow: var(--glow-text-medium);
  transition: text-shadow 0.3s ease;
}

.contact-card a:hover {
  text-shadow: var(--glow-text-strong);
}

.contact-label {
  font-size: 0.85rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 6px;
}

.contact-note {
  color: var(--muted);
  margin: 0;
}

.site-footer {
  padding: 30px 8vw 60px;
  border-top: 1px solid var(--accent-12);
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 0.2;
    transform: translateX(0);
  }
  50% {
    opacity: 0.9;
    transform: translateX(12px);
  }
}

@media (max-width: 900px) {
  .site-header {
    flex-direction: column;
    gap: 16px;
  }

  .nav {
    flex-wrap: wrap;
    justify-content: center;
  }
}

@media (max-width: 600px) {
  .site-header {
    padding: 18px 6vw;
  }

  .hero {
    padding: 60px 6vw 30px;
  }

  .services,
  .expertise,
  .contact {
    padding: 50px 6vw;
  }

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

  .btn {
    width: 100%;
    text-align: center;
  }
}