:root {
  --void: #0A0D12;
  --void-2: #0D1119;
  --panel: rgba(255, 255, 255, 0.05);
  --panel-border: rgba(255, 255, 255, 0.09);
  --panel-hover: rgba(255, 255, 255, 0.08);
  --accent: #5EEAD4;
  --accent-2: #818CF8;
  --text: #EEF2F6;
  --text-dim: #93A0B3;
  --text-faint: #55606F;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --container-w: 1180px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--void);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3 {
  font-family: var(--font-display);
  margin: 0;
  color: var(--text);
  letter-spacing: -0.01em;
}

p {
  margin: 0;
}

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

ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

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

.container {
  width: 100%;
  max-width: var(--container-w);
  margin-inline: auto;
  padding-inline: 24px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: var(--void);
  padding: 12px 20px;
  z-index: 200;
  border-radius: 0 0 var(--radius-sm) 0;
}

.skip-link:focus {
  left: 0;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 18px;
}

.eyebrow-center {
  text-align: center;
}

.accent-text {
  background: linear-gradient(100deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
  white-space: nowrap;
}

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

.btn-primary {
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  color: #05100E;
  box-shadow: 0 8px 30px -8px rgba(94, 234, 212, 0.5);
}

.btn-glass {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  color: var(--text);
}

.btn-glass:hover {
  background: var(--panel-hover);
  border-color: rgba(255, 255, 255, 0.18);
}

.btn-ghost {
  border: 1px solid var(--panel-border);
  padding: 10px 20px;
  font-size: 0.9rem;
}

.btn-icon {
  display: inline-flex;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 13, 18, 0.6);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--panel-border);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-mark {
  color: var(--accent);
  display: inline-flex;
}

.logo-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 0.02em;
}

.logo-text.small {
  font-size: 1.1rem;
}

.main-nav {
  display: none;
  gap: 32px;
  font-size: 0.95rem;
  color: var(--text-dim);
}

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

.header-cta {
  font-size: 0.85rem;
  padding: 9px 18px;
}

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 76px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 55% at 32% 42%, rgba(10, 13, 18, 0.75), transparent 70%),
    linear-gradient(180deg, rgba(10, 13, 18, 0) 0%, rgba(10, 13, 18, 0.85) 92%);
  pointer-events: none;
}

.hero-glow {
  position: absolute;
  top: -18%;
  left: -12%;
  width: 640px;
  height: 640px;
  max-width: 90vw;
  background: radial-gradient(circle at 32% 32%, rgba(94, 234, 212, 0.22), rgba(129, 140, 248, 0.12) 45%, transparent 72%);
  filter: blur(50px);
  z-index: -1;
  pointer-events: none;
}

.network-svg {
  width: 100%;
  height: 100%;
}

.network-lines-glow {
  opacity: 0.5;
}

.network-nodes circle {
  animation: pulse 4s ease-in-out infinite;
}

.network-nodes circle:nth-child(odd) {
  animation-delay: 1.2s;
}

.network-nodes circle:nth-child(3n) {
  animation-delay: 2.1s;
}

@keyframes pulse {
  0%, 100% { opacity: 0.55; }
  50% { opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
  .network-nodes circle {
    animation: none;
  }
  html {
    scroll-behavior: auto;
  }
}

.hero-inner {
  position: relative;
  z-index: 1;
  padding-block: 80px;
}

.hero-title {
  font-size: clamp(2.4rem, 7vw, 5rem);
  font-weight: 700;
  line-height: 1.05;
  max-width: 16ch;
}

.hero-sub {
  margin-top: 28px;
  max-width: 52ch;
  font-size: clamp(1rem, 2vw, 1.15rem);
  color: var(--text-dim);
}

.hero-actions {
  margin-top: 44px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.6rem);
  font-weight: 600;
  max-width: 20ch;
}

.section-lead {
  margin-top: 16px;
  color: var(--text-dim);
  font-size: 1.05rem;
  max-width: 48ch;
}

.error-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 76px;
  overflow: hidden;
}

.error-inner {
  position: relative;
  z-index: 1;
  padding-block: 80px;
  text-align: center;
  max-width: 640px;
  margin-inline: auto;
}

.error-inner .hero-glow {
  top: -30%;
  left: 50%;
  transform: translateX(-50%);
}

.error-code {
  font-family: var(--font-display);
  font-size: clamp(4.5rem, 16vw, 9rem);
  font-weight: 700;
  line-height: 1;
  background: linear-gradient(100deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-top: 4px;
}

.error-title {
  margin-top: 18px;
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 3vw, 1.75rem);
  font-weight: 600;
  color: var(--text);
}

.error-inner .hero-sub {
  margin-inline: auto;
  margin-top: 18px;
}

.error-inner .hero-actions {
  justify-content: center;
  margin-top: 40px;
}

.services {
  padding-block: 110px;
  position: relative;
}

.services .container > .eyebrow,
.services .container > .section-title,
.services .container > .section-lead {
  text-align: center;
  margin-inline: auto;
}

.services-grid {
  margin-top: 56px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.service-card {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}

.service-card:hover {
  transform: translateY(-4px);
  border-color: rgba(94, 234, 212, 0.35);
  background: var(--panel-hover);
}

.service-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(94, 234, 212, 0.15), rgba(129, 140, 248, 0.15));
  color: var(--accent);
  margin-bottom: 22px;
}

.service-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.service-card p {
  color: var(--text-dim);
  font-size: 0.96rem;
}

.contact {
  padding-block: 110px;
}

.contact-panel {
  background: linear-gradient(150deg, rgba(94, 234, 212, 0.08), rgba(129, 140, 248, 0.06));
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-lg);
  padding: 56px 40px;
  display: grid;
  gap: 40px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.contact-list {
  display: grid;
  gap: 14px;
}

.contact-link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.03);
  transition: border-color 0.2s ease, background 0.2s ease;
}

.contact-link:hover {
  border-color: rgba(94, 234, 212, 0.4);
  background: rgba(255, 255, 255, 0.06);
}

.contact-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.contact-value {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
}

.site-footer {
  border-top: 1px solid var(--panel-border);
  padding-block: 40px;
  color: var(--text-faint);
  font-size: 0.9rem;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.footer-copy {
  margin-top: 10px;
  font-size: 0.82rem;
}

@media (min-width: 640px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-panel {
    padding: 64px 56px;
  }
}

@media (min-width: 860px) {
  .main-nav {
    display: flex;
  }

  .contact-panel {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }
}

@media (min-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .container {
    padding-inline: 40px;
  }
}

@media (min-width: 1600px) {
  :root {
    --container-w: 1360px;
  }

  .hero-title {
    font-size: clamp(3.4rem, 5.5vw, 6.2rem);
  }
}