:root {
  /* Core Colors */
  --bg-primary: #0B0F19; /* Deep dark blue/black */
  --bg-secondary: #131A2A;
  --bg-tertiary: #1C273C;
  --text-primary: #FFFFFF;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;

  /* Accents */
  --accent-blue: #3B82F6;
  --accent-purple: #8B5CF6;
  --accent-blue-hover: #2563EB;
  --accent-purple-hover: #7C3AED;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-purple) 100%);
  --gradient-hover: linear-gradient(135deg, var(--accent-blue-hover) 0%, var(--accent-purple-hover) 100%);
  --gradient-glass: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.01) 100%);

  /* UI Tokens */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Shadows */
  --shadow-glow-blue: 0 0 20px rgba(59, 130, 246, 0.4);
  --shadow-glow-purple: 0 0 20px rgba(139, 92, 246, 0.4);
  --shadow-glass: 0 8px 32px 0 rgba(0, 0, 0, 0.37);

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-family: 'Inter', sans-serif;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-4);
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 5vw, 4.5rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }

p {
  color: var(--text-secondary);
  margin-bottom: var(--space-4);
  font-size: 1.125rem;
}

a {
  color: var(--text-primary);
  text-decoration: none;
  transition: color var(--transition-short);
}

ul {
  list-style: none;
}

/* Utility Classes */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.text-center { text-align: center; }
.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline-block;
}

.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-8 { margin-bottom: var(--space-8); }
.mb-16 { margin-bottom: var(--space-16); }

/* Layout Heights & Spacing */
.section {
  padding: var(--space-24) 0;
}

.min-h-screen {
  min-height: 100vh;
}

.d-flex { display: flex; }
.flex-column { flex-direction: column; }
.align-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-4 { gap: var(--space-4); }
.gap-8 { gap: var(--space-8); }

.grid {
  display: grid;
  gap: var(--space-8);
}
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }

/* Glassmorphism Components */
.glass {
  background: var(--gradient-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-glass);
}

.glass-card {
  padding: var(--space-8);
  transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.glass-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(circle at 50% -20%, rgba(59, 130, 246, 0.15), transparent 70%);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.glass-card:hover {
  transform: translateY(-8px);
  border-color: rgba(59, 130, 246, 0.3);
  box-shadow: var(--shadow-glow-blue);
}

.glass-card:hover::before {
  opacity: 1;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 2rem;
  font-size: 1rem;
  font-weight: 500;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-normal);
  border: none;
  gap: 0.5rem;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
  box-shadow: var(--shadow-glow-blue);
  transform: translateY(-2px);
  background: var(--gradient-hover);
}

.btn-secondary {
  background: transparent;
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
  border-color: var(--accent-blue);
  background: rgba(59, 130, 246, 0.1);
  transform: translateY(-2px);
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: var(--space-4) 0;
  transition: padding var(--transition-normal), background var(--transition-normal), backdrop-filter var(--transition-normal);
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  padding: var(--space-2) 0;
  background: rgba(11, 15, 25, 0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -1px;
}

.nav-links {
  display: flex;
  gap: var(--space-6);
  align-items: center;
}

.nav-link {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text-secondary);
  position: relative;
}

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width var(--transition-normal);
  border-radius: 2px;
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: white;
  cursor: pointer;
}

/* Mobile Nav */
@media (max-width: 992px) {
  .nav-links {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    background: var(--bg-primary);
    flex-direction: column;
    padding: var(--space-8);
    gap: var(--space-6);
    border-bottom: 1px solid rgba(255,255,255,0.05);
    transform: translateY(-150%);
    transition: transform var(--transition-normal);
    z-index: 999;
  }
  .nav-links.active {
    transform: translateY(0);
  }
  .mobile-toggle {
    display: block;
    width: 30px;
    height: 24px;
    position: relative;
  }
  .mobile-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: white;
    position: absolute;
    transition: all 0.3s;
  }
  .mobile-toggle span:nth-child(1) { top: 0; }
  .mobile-toggle span:nth-child(2) { top: 11px; }
  .mobile-toggle span:nth-child(3) { top: 22px; }
  
  .mobile-toggle.active span:nth-child(1) { top: 11px; transform: rotate(45deg); }
  .mobile-toggle.active span:nth-child(2) { opacity: 0; }
  .mobile-toggle.active span:nth-child(3) { top: 11px; transform: rotate(-45deg); }
}

/* Hero Section */
.hero {
  position: relative;
  display: flex;
  align-items: center;
  padding-top: 120px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  z-index: -1;
  pointer-events: none;
}

.hero-glow-1 {
  position: absolute;
  top: -10%; left: -10%;
  width: 50vw; height: 50vw;
  background: radial-gradient(circle, rgba(59,130,246,0.15) 0%, transparent 70%);
  border-radius: 50%;
  filter: blur(80px);
}

.hero-glow-2 {
  position: absolute;
  bottom: -20%; right: -10%;
  width: 60vw; height: 60vw;
  background: radial-gradient(circle, rgba(139,92,246,0.15) 0%, transparent 70%);
  border-radius: 50%;
  filter: blur(100px);
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 10;
}

/* Services / Features */
.icon-wrapper {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  background: rgba(59, 130, 246, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-6);
  color: var(--accent-blue);
  font-size: 1.5rem;
  border: 1px solid rgba(59, 130, 246, 0.2);
}

/* Stats / Counters */
.stat-item {
  text-align: center;
}
.stat-number {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1;
  margin-bottom: 0.5rem;
}
.stat-label {
  color: var(--text-secondary);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.875rem;
}

/* Footer */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid rgba(255,255,255,0.05);
  padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.footer-heading {
  font-size: 1.125rem;
  margin-bottom: var(--space-4);
  color: var(--text-primary);
}

.footer-links li {
  margin-bottom: var(--space-2);
}

.footer-links a {
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--accent-blue);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255,255,255,0.05);
  color: var(--text-muted);
}

/* Scroll Reveal Animation Utilities */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.5, 0, 0, 1);
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* Contact Form */
.form-group {
  margin-bottom: var(--space-4);
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.form-control {
  width: 100%;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 1rem;
  border-radius: var(--radius-sm);
  color: white;
  font-family: inherit;
  transition: all var(--transition-normal);
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-blue);
  background: rgba(59, 130, 246, 0.05);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}