:root {
  /* MD3 Typography Scale / Tokens */
  --md-sys-typescale-display: 700 clamp(2.5rem, 5vw + 1rem, 4.5rem)/1.1 'Space Grotesk', system-ui, sans-serif;
  --md-sys-typescale-headline: 600 clamp(2rem, 4vw + 0.5rem, 3rem)/1.2 'Space Grotesk', system-ui, sans-serif;
  --md-sys-typescale-title: 500 1.5rem/1.3 'Space Grotesk', system-ui, sans-serif;
  --md-sys-typescale-body: 400 1.125rem/1.6 'Inter', system-ui, sans-serif;
  --md-sys-typescale-label: 500 0.875rem/1.5 'Inter', system-ui, sans-serif;

  /* Color System */
  --md-sys-color-bg-1: #070b14;
  --md-sys-color-bg-2: #0a1024;
  --md-sys-color-bg-3: #060a18;
  
  --md-sys-color-cyan: #00e5ff;
  --md-sys-color-violet: #a855f7;
  --md-sys-color-green: #00ff9d;
  
  --md-sys-color-text-primary: #ffffff;
  --md-sys-color-text-secondary: rgba(255, 255, 255, 0.7);

  --glass-fill: rgba(255, 255, 255, 0.06);
  --glass-fill-hover: rgba(255, 255, 255, 0.1);
  --glass-border: rgba(255, 255, 255, 0.15);
  --glass-glow: inset 0 1px 0 rgba(255, 255, 255, 0.1);

  /* Shape & Elevation (MD3) */
  --md-sys-shape-small: 16px;
  --md-sys-shape-large: 24px;
  
  --md-sys-elevation-glass: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  --md-sys-elevation-glow-cyan: 0 0 20px rgba(0, 229, 255, 0.3);
  --md-sys-elevation-glow-violet: 0 0 20px rgba(168, 85, 247, 0.3);
  --md-sys-elevation-glow-green: 0 0 20px rgba(0, 255, 157, 0.3);

  /* Motion (MD3) */
  --md-sys-motion-easing-standard: cubic-bezier(0.2, 0, 0, 1);
  --md-sys-motion-easing-decel: cubic-bezier(0.05, 0.7, 0.1, 1);
  --md-sys-motion-duration-short: 150ms;
  --md-sys-motion-duration-medium: 300ms;
  --md-sys-motion-duration-long: 500ms;

  /* Spacing */
  --spacing-baseline: 8px;
  --container-max: 1280px;
}

/* Base Styles */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--md-sys-color-bg-2);
  color: var(--md-sys-color-text-primary);
  font: var(--md-sys-typescale-body);
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard);
}

a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--md-sys-color-cyan);
  outline-offset: 4px;
}

/* Backgrounds */
.bg-gradient-mesh {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -2;
  background: radial-gradient(circle at 15% 50%, rgba(10, 16, 36, 1), transparent 50%),
              radial-gradient(circle at 85% 30%, rgba(7, 11, 20, 1), transparent 50%);
  background-color: var(--md-sys-color-bg-3);
}

.bg-particle-grid {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 100px 100px;
  mask-image: radial-gradient(ellipse at center, black 10%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 10%, transparent 80%);
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 calc(var(--spacing-baseline) * 3);
}

.container-large {
  max-width: 1440px;
}

.section-padding {
  padding: calc(var(--spacing-baseline) * 12) 0;
}

.fullscreen-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
}

.text-center { text-align: center; }
.mt-4 { margin-top: calc(var(--spacing-baseline) * 4); }
.w-100 { width: 100%; }
.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); border: 0;
}

/* Typography Classes */
.hero-title { font: var(--md-sys-typescale-display); margin-bottom: calc(var(--spacing-baseline) * 3); }
.section-title { font: var(--md-sys-typescale-headline); margin-bottom: calc(var(--spacing-baseline) * 6); }
h3 { font: var(--md-sys-typescale-title); margin-bottom: calc(var(--spacing-baseline) * 2); }
.body-text, .service-desc { font: var(--md-sys-typescale-body); color: var(--md-sys-color-text-secondary); }
p { margin-bottom: calc(var(--spacing-baseline) * 2); }

/* Neon Highlights */
.neon-text--cyan { color: var(--md-sys-color-cyan); text-shadow: 0 0 10px rgba(0, 229, 255, 0.5); }
.neon-text--violet { color: var(--md-sys-color-violet); text-shadow: 0 0 10px rgba(168, 85, 247, 0.5); }
.neon-text--green { color: var(--md-sys-color-green); text-shadow: 0 0 10px rgba(0, 255, 157, 0.5); }

/* Glassmorphism System */
.glass-nav, .glass-card, .glass-panel {
  background: var(--glass-fill);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  border: 1px solid var(--glass-border);
  box-shadow: var(--md-sys-elevation-glass), var(--glass-glow);
}

.glass-nav {
  position: fixed;
  top: 0; left: 0; width: 100%;
  z-index: 100;
  transition: background var(--md-sys-motion-duration-medium) var(--md-sys-motion-easing-standard);
}
.glass-nav.scrolled {
  background: rgba(10, 16, 36, 0.85);
  border-bottom: 1px solid var(--glass-border);
}

.glass-card {
  border-radius: var(--md-sys-shape-large);
  padding: calc(var(--spacing-baseline) * 4);
  transition: all var(--md-sys-motion-duration-medium) var(--md-sys-motion-easing-decel);
}
.glass-panel {
  border-radius: var(--md-sys-shape-large);
  overflow: hidden;
}

/* Hover effects */
@media (hover: hover) {
  .glow-hover-cyan:hover {
    border-color: rgba(0, 229, 255, 0.5);
    box-shadow: var(--md-sys-elevation-glow-cyan), inset 0 0 20px rgba(0, 229, 255, 0.1);
    transform: translateY(-4px);
  }
  .glow-hover-violet:hover {
    border-color: rgba(168, 85, 247, 0.5);
    box-shadow: var(--md-sys-elevation-glow-violet), inset 0 0 20px rgba(168, 85, 247, 0.1);
    transform: translateY(-4px);
  }
  .glow-hover-green:hover {
    border-color: rgba(0, 255, 157, 0.5);
    box-shadow: var(--md-sys-elevation-glow-green), inset 0 0 20px rgba(0, 255, 157, 0.1);
    transform: translateY(-4px);
  }
}

/* Navigation */
.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.logo-link {
  font: var(--md-sys-typescale-title);
  font-weight: 700;
  letter-spacing: -0.5px;
}

.nav-links {
  display: flex;
  gap: calc(var(--spacing-baseline) * 4);
  align-items: center;
}

.nav-link {
  font: var(--md-sys-typescale-label);
  color: var(--md-sys-color-text-secondary);
}
.nav-link:hover, .nav-link.active {
  color: var(--md-sys-color-text-primary);
}

.hamburger-menu {
  display: none;
  background: none; border: none;
  cursor: pointer; padding: 8px;
  z-index: 101;
}
.hamburger-line {
  display: block; width: 24px; height: 2px;
  background: var(--md-sys-color-text-primary);
  margin: 5px 0;
  transition: all var(--md-sys-motion-duration-short) ease-in-out;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 12px 32px;
  font: var(--md-sys-typescale-label);
  border-radius: var(--md-sys-shape-small);
  cursor: pointer;
  text-align: center;
  transition: all var(--md-sys-motion-duration-medium) var(--md-sys-motion-easing-decel);
  border: 1px solid transparent;
}

.btn-primary {
  background-color: transparent;
  border-color: var(--md-sys-color-cyan);
  color: var(--md-sys-color-cyan);
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.2), inset 0 0 10px rgba(0, 229, 255, 0.1);
}
.btn-primary:hover {
  background-color: rgba(0, 229, 255, 0.1);
  box-shadow: 0 0 20px rgba(0, 229, 255, 0.4), inset 0 0 15px rgba(0, 229, 255, 0.2);
  text-shadow: 0 0 8px rgba(0, 229, 255, 0.8);
}

.btn-outline {
  background: var(--glass-fill);
  border-color: var(--glass-border);
  color: var(--md-sys-color-text-primary);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}
.btn-outline:hover {
  background: var(--glass-fill-hover);
  border-color: rgba(255, 255, 255, 0.3);
}

.btn-glow {
  color: var(--md-sys-color-cyan);
  position: relative;
}
.btn-glow::after {
  content: ''; position: absolute;
  bottom: -4px; left: 0; width: 100%; height: 2px;
  background: var(--md-sys-color-cyan);
  box-shadow: 0 0 8px var(--md-sys-color-cyan);
  transform: scaleX(0); transition: transform 0.3s ease;
}
.btn-glow:hover::after { transform: scaleX(1); }

/* Hero Section */
.hero-content {
  text-align: center;
  position: relative;
  z-index: 10;
  max-width: 900px;
}
.hero-subtitle {
  font-size: 1.25rem;
  color: var(--md-sys-color-text-secondary);
  line-height: 1.8;
  margin: 0 auto calc(var(--spacing-baseline) * 5) auto;
  max-width: 800px;
}
.hero-ctas {
  display: flex;
  gap: calc(var(--spacing-baseline) * 2);
  justify-content: center;
}
.hero-visual {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 150%; height: 150%;
  z-index: -1;
  opacity: 0.15;
  pointer-events: none;
}

/* Animations */
.spin-slow { transform-origin: center; animation: spin 40s linear infinite; }
.pulse-slow { transform-origin: center; animation: pulse 6s ease-in-out infinite alternate; }
.wave-slow { animation: wave 8s ease-in-out infinite alternate; }

@keyframes spin { 100% { transform: rotate(360deg); } }
@keyframes pulse { 0% { transform: scale(0.9); opacity: 0.8; } 100% { transform: scale(1.1); opacity: 1; } }
@keyframes wave { 0% { transform: translateY(-10px); } 100% { transform: translateY(10px); } }

/* Grid Layouts */
.two-column-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: calc(var(--spacing-baseline) * 8);
  align-items: center;
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: calc(var(--spacing-baseline) * 3);
}

.stat-card {
  text-align: center;
  padding: calc(var(--spacing-baseline) * 3);
}
.stat-number {
  font: var(--md-sys-typescale-headline);
  margin-bottom: calc(var(--spacing-baseline));
}
.stat-label {
  font: var(--md-sys-typescale-label);
  color: var(--md-sys-color-text-secondary);
  margin: 0;
}

.grid-3x2 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: calc(var(--spacing-baseline) * 4);
}

.service-card {
  display: flex;
  flex-direction: column;
  height: 100%;
}
.service-icon {
  margin-bottom: calc(var(--spacing-baseline) * 3);
  color: var(--md-sys-color-text-primary);
}
.service-title { font-size: 1.25rem; }

/* Capabilities */
.overflow-hidden { overflow: hidden; }
.capabilities-row {
  display: flex;
  gap: calc(var(--spacing-baseline) * 3);
  flex-wrap: wrap;
  justify-content: center;
}
.capability-badge {
  display: flex;
  align-items: center;
  gap: calc(var(--spacing-baseline) * 1.5);
  padding: 12px 24px;
  background: var(--glass-fill);
  border: 1px solid var(--glass-border);
  border-radius: 100px;
  font: var(--md-sys-typescale-label);
  white-space: nowrap;
  transition: transform 0.3s ease, border-color 0.3s ease;
}
.glow-border-cyan:hover { border-color: var(--md-sys-color-cyan); transform: scale(1.05); }
.glow-border-violet:hover { border-color: var(--md-sys-color-violet); transform: scale(1.05); }
.glow-border-green:hover { border-color: var(--md-sys-color-green); transform: scale(1.05); }

/* Contact Section */
.contact-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
}
.contact-info, .contact-form-wrapper {
  padding: calc(var(--spacing-baseline) * 8);
}
.contact-info {
  background: rgba(0, 0, 0, 0.2);
  border-right: 1px solid var(--glass-border);
}
.contact-item {
  display: flex;
  align-items: center;
  gap: calc(var(--spacing-baseline) * 2);
  font: var(--md-sys-typescale-body);
  margin-bottom: calc(var(--spacing-baseline) * 2);
}
.contact-item svg { color: var(--md-sys-color-cyan); }

/* Form Styles */
.input-group {
  margin-bottom: calc(var(--spacing-baseline) * 3);
  position: relative;
}
input, textarea {
  width: 100%;
  padding: 16px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--glass-border);
  border-radius: var(--md-sys-shape-small);
  color: var(--md-sys-color-text-primary);
  font: var(--md-sys-typescale-body);
  transition: all 0.3s ease;
}
input::placeholder, textarea::placeholder {
  color: rgba(255, 255, 255, 0.3);
}
input:focus, textarea:focus {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--md-sys-color-violet);
  outline: none;
  box-shadow: 0 0 15px rgba(168, 85, 247, 0.2);
}
textarea { resize: vertical; min-height: 120px; }
.error-msg {
  display: block;
  color: #ff5252;
  font-size: 0.8rem;
  margin-top: 4px;
  min-height: 1.2em;
}

/* Footer */
.minimal-footer {
  padding: calc(var(--spacing-baseline) * 4) 0;
  border-top: 1px solid var(--glass-border);
  background: rgba(6, 10, 24, 0.9);
}
.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: calc(var(--spacing-baseline) * 2);
}
.footer-left p, .footer-center p { margin: 0; font: var(--md-sys-typescale-label); color: var(--md-sys-color-text-secondary); }
.social-placeholders { display: flex; gap: calc(var(--spacing-baseline) * 2); }
.social-link { color: var(--md-sys-color-text-secondary); }
.social-link:hover { color: var(--md-sys-color-text-primary); }

/* Scroll Reveals */
.scroll-reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.5, 0, 0, 1), transform 0.8s cubic-bezier(0.5, 0, 0, 1);
}
.scroll-reveal.visible { opacity: 1; transform: translateY(0); }
.stagger-1 { transition-delay: 100ms; }
.stagger-2 { transition-delay: 200ms; }
.stagger-3 { transition-delay: 300ms; }

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .scroll-reveal { opacity: 1; transform: none; }
}

/* Responsive Constraints */
@media (max-width: 1024px) {
  .grid-3x2 { grid-template-columns: repeat(2, 1fr); }
  .contact-split { grid-template-columns: 1fr; }
  .contact-info { border-right: none; border-bottom: 1px solid var(--glass-border); }
}

@media (max-width: 768px) {
  .two-column-grid { grid-template-columns: 1fr; gap: calc(var(--spacing-baseline) * 4); }
  .grid-3x2 { grid-template-columns: 1fr; }
  .about-stats { grid-template-columns: 1fr; }
  
  .hamburger-menu { display: block; }
  .nav-links {
    position: fixed;
    top: 80px; left: 0; right: 0;
    background: rgba(10, 16, 36, 0.98);
    -webkit-backdrop-filter: blur(24px);
    backdrop-filter: blur(24px);
    flex-direction: column;
    padding: calc(var(--spacing-baseline) * 4);
    gap: calc(var(--spacing-baseline) * 3);
    clip-path: circle(0% at top right);
    transition: clip-path 0.5s ease-in-out;
    border-bottom: 1px solid var(--glass-border);
  }
  .nav-links.open { clip-path: circle(150% at top right); }
  
  .hamburger-menu[aria-expanded="true"] .hamburger-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .hamburger-menu[aria-expanded="true"] .hamburger-line:nth-child(2) {
    opacity: 0;
  }
  .hamburger-menu[aria-expanded="true"] .hamburger-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .hero-title { font-size: 2.5rem; }
  .hero-subtitle { font-size: 1rem; }
  .hero-ctas { flex-direction: column; gap: calc(var(--spacing-baseline) * 2); }
  .btn { width: 100%; }
  
  .footer-content { flex-direction: column; text-align: center; }
}