:root {
  /* Dark Quantum Palette */
  --obsidian-black: #0D0D0D;
  --charcoal-gray: #1A1A1A;
  --gunmetal: #2A2D34;
  --slate-dark: #232B38;
  --deep-navy: #0A1F2E;
  
  /* Quantum Accent Colors */
  --quantum-cyan: #00F5FF;
  --quantum-violet: #8B5CF6;
  --quantum-emerald: #10B981;
  --phosphor-green: #4ADE80;
  --electric-blue: #3B82F6;
  
  /* Typography */
  --font-primary: 'Orbitron', sans-serif;
  --font-secondary: 'Inter', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-quantum: 0 0 20px rgba(0, 245, 255, 0.15);
  --shadow-glow: 0 0 30px rgba(139, 92, 246, 0.2);
  --shadow-deep: 0 10px 40px rgba(0, 0, 0, 0.5);
  --shadow-membrane: 0 4px 20px rgba(59, 130, 246, 0.1);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  --transition-quantum: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-secondary);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: #E5E7EB;
  background: var(--obsidian-black);
  overflow-x: hidden;
  position: relative;
}

/* Quantum Membrane Background */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 20% 30%, rgba(59, 130, 246, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(139, 92, 246, 0.06) 0%, transparent 50%),
    radial-gradient(circle at 50% 50%, rgba(16, 185, 129, 0.04) 0%, transparent 50%);
  pointer-events: none;
  z-index: -1;
  animation: quantum-pulse 8s ease-in-out infinite;
}

@keyframes quantum-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(1.05); }
}

/* Quantum Grid Overlay */
.quantum-grid {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    linear-gradient(rgba(59, 130, 246, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59, 130, 246, 0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
  z-index: -1;
  animation: grid-flow 20s linear infinite;
}

@keyframes grid-flow {
  0% { transform: translateY(0) translateX(0); }
  100% { transform: translateY(50px) translateX(50px); }
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  font-weight: 700;
  line-height: 1.2;
  color: #FFFFFF;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

h1 { font-size: var(--font-size-4xl); margin-bottom: var(--space-lg); }
h2 { font-size: var(--font-size-3xl); margin-bottom: var(--space-md); }
h3 { font-size: var(--font-size-2xl); margin-bottom: var(--space-md); }
h4 { font-size: var(--font-size-xl); margin-bottom: var(--space-sm); }
h5 { font-size: var(--font-size-lg); margin-bottom: var(--space-sm); }
h6 { font-size: var(--font-size-base); margin-bottom: var(--space-sm); }

p {
  margin-bottom: var(--space-md);
  color: #D1D5DB;
}

a {
  color: var(--quantum-cyan);
  text-decoration: none;
  transition: var(--transition-base);
}

a:hover {
  color: var(--electric-blue);
  text-shadow: 0 0 10px rgba(0, 245, 255, 0.5);
}

/* Header - Quantum Floating Design */
.site-header {
  position: absolute;
  top: var(--space-lg);
  left: 50%;
  transform: translateX(-50%);
  width: 95%;
  max-width: 1400px;
  background: rgba(26, 26, 26, 0.6);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: var(--radius-xl);
  padding: var(--space-md) var(--space-xl);
  z-index: 1000;
  box-shadow: var(--shadow-quantum);
  transition: var(--transition-quantum);
}

.site-header.scrolled {
  position: fixed;
  top: var(--space-sm);
  width: 90%;
  padding: var(--space-sm) var(--space-lg);
  background: rgba(26, 26, 26, 0.9);
  animation: header-glow 3s ease-in-out infinite;
}

@keyframes header-glow {
  0%, 100% { box-shadow: var(--shadow-quantum); }
  50% { box-shadow: 0 0 30px rgba(0, 245, 255, 0.25); }
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-lg);
}

.logo {
  font-family: var(--font-primary);
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--quantum-cyan);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  text-shadow: 0 0 20px rgba(0, 245, 255, 0.4);
  transition: var(--transition-base);
  white-space: nowrap;
}

.logo:hover {
  color: #FFFFFF;
  text-shadow: 0 0 30px rgba(0, 245, 255, 0.6);
  transform: scale(1.05);
}

/* Navigation */
.main-nav ul {
  display: flex;
  list-style: none;
  gap: var(--space-lg);
  align-items: center;
}

.main-nav a {
  font-family: var(--font-secondary);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: #E5E7EB;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  position: relative;
  overflow: hidden;
  transition: var(--transition-base);
}

.main-nav a::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--quantum-cyan), var(--quantum-violet));
  transform: translateX(-50%);
  transition: var(--transition-base);
}

.main-nav a:hover {
  color: var(--quantum-cyan);
  background: rgba(59, 130, 246, 0.1);
}

.main-nav a:hover::before {
  width: 80%;
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 0.25rem;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
  z-index: 1001;
}
img {
  width: 100%;
}
.menu-toggle span {
  display: block;
  width: 1.5rem;
  height: 2px;
  background: var(--quantum-cyan);
  transition: var(--transition-base);
  box-shadow: 0 0 10px rgba(0, 245, 255, 0.5);
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(0.4rem, 0.4rem);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(0.4rem, -0.4rem);
}

/* Main Content */
.main-content {
  padding-top: 8rem;
  min-height: 100vh;
}

/* Hero Section - Quantum Membrane */
.hero-section {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-3xl) var(--space-lg);
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.15) 0%, transparent 70%);
  animation: membrane-breath 6s ease-in-out infinite;
  pointer-events: none;
}

@keyframes membrane-breath {
  0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.5; }
  50% { transform: translate(-50%, -50%) scale(1.2); opacity: 0.8; }
}

.hero-content {
  position: relative;
  z-index: 10;
  max-width: 900px;
  margin: 0 auto;
}

.hero-title {
  font-size: var(--font-size-5xl);
  margin-bottom: var(--space-lg);
  background: linear-gradient(135deg, var(--quantum-cyan), var(--quantum-violet), var(--phosphor-green));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradient-flow 5s ease infinite;
  background-size: 200% 200%;
}

@keyframes gradient-flow {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.hero-subtitle {
  font-size: var(--font-size-xl);
  color: #9CA3AF;
  font-weight: 300;
  margin-bottom: var(--space-2xl);
  font-family: var(--font-secondary);
  text-transform: none;
  letter-spacing: 0.02em;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: var(--space-md) var(--space-xl);
  font-size: var(--font-size-base);
  font-weight: 600;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition-quantum);
  border: none;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: linear-gradient(135deg, var(--electric-blue), var(--quantum-violet));
  color: #FFFFFF;
  box-shadow: 0 0 20px rgba(59, 130, 246, 0.4);
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn-primary:hover::before {
  width: 300px;
  height: 300px;
}

.btn-primary:hover {
  box-shadow: 0 0 40px rgba(59, 130, 246, 0.6);
  transform: translateY(-2px);
}

.btn-secondary {
  background: transparent;
  color: var(--quantum-cyan);
  border: 2px solid var(--quantum-cyan);
  box-shadow: var(--shadow-quantum);
}

.btn-secondary:hover {
  background: var(--quantum-cyan);
  color: var(--obsidian-black);
  box-shadow: 0 0 30px rgba(0, 245, 255, 0.5);
}

/* Section Styles */
.section {
  padding: var(--space-3xl) var(--space-lg);
  position: relative;
}

.section-dark {
  background: rgba(26, 26, 26, 0.5);
  backdrop-filter: blur(10px);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section-title {
  position: relative;
  display: inline-block;
  padding-bottom: var(--space-md);
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--quantum-cyan), transparent);
  box-shadow: 0 0 10px rgba(0, 245, 255, 0.5);
}

.section-description {
  max-width: 700px;
  margin: var(--space-lg) auto 0;
  font-size: var(--font-size-lg);
  color: #9CA3AF;
}

/* Cards - Quantum Membrane Style */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
}

.quantum-card {
  background: rgba(26, 26, 26, 0.6);
  backdrop-filter: blur(15px);
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: var(--transition-quantum);
  position: relative;
  overflow: hidden;
}

.quantum-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(59, 130, 246, 0.1) 0%, transparent 50%);
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}

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

.quantum-card:hover {
  transform: translateY(-8px);
  border-color: var(--quantum-cyan);
  box-shadow: 0 10px 40px rgba(0, 245, 255, 0.2);
}

.card-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-lg);
  color: var(--quantum-cyan);
  display: inline-block;
  transition: var(--transition-base);
}

.quantum-card:hover .card-icon {
  color: var(--quantum-violet);
  transform: scale(1.1) rotate(5deg);
  text-shadow: 0 0 20px rgba(139, 92, 246, 0.6);
}

.card-title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-md);
  color: #FFFFFF;
}

.card-description {
  color: #9CA3AF;
  font-size: var(--font-size-sm);
  line-height: 1.7;
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-2xl);
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: rgba(42, 45, 52, 0.4);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--quantum-cyan);
  transition: var(--transition-base);
}

.feature-item:hover {
  background: rgba(42, 45, 52, 0.7);
  border-left-color: var(--quantum-violet);
  transform: translateX(5px);
}

.feature-icon {
  font-size: 1.5rem;
  color: var(--quantum-cyan);
  flex-shrink: 0;
}

.feature-text h4 {
  font-size: var(--font-size-base);
  margin-bottom: var(--space-xs);
}

.feature-text p {
  font-size: var(--font-size-sm);
  color: #9CA3AF;
  margin: 0;
}

/* Products Section */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-2xl);
  margin-top: var(--space-2xl);
}

.product-card {
  background: rgba(26, 26, 26, 0.7);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: var(--transition-quantum);
  position: relative;
}

.product-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--quantum-cyan), var(--quantum-violet), var(--phosphor-green));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s ease;
}

.product-card:hover::after {
  transform: scaleX(1);
}

.product-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 60px rgba(0, 245, 255, 0.2);
  border-color: var(--quantum-cyan);
}

.product-image {
  width: 100%;
  height: 250px;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(139, 92, 246, 0.2));
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.product-image::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(0, 245, 255, 0.2) 0%, transparent 70%);
  animation: pulse-glow 3s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.5; }
  50% { transform: translate(-50%, -50%) scale(1.3); opacity: 0.8; }
}

.product-image i {
  font-size: 4rem;
  color: var(--quantum-cyan);
  position: relative;
  z-index: 2;
}

.product-content {
  padding: var(--space-xl);
}

.product-title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-sm);
  color: #FFFFFF;
}

.product-price {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--quantum-cyan);
  margin-bottom: var(--space-md);
  font-family: var(--font-primary);
}

.product-description {
  color: #9CA3AF;
  margin-bottom: var(--space-lg);
  font-size: var(--font-size-sm);
  line-height: 1.7;
}

.product-features {
  list-style: none;
  margin-bottom: var(--space-lg);
}

.product-features li {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-xs) 0;
  font-size: var(--font-size-sm);
  color: #D1D5DB;
}

.product-features li::before {
  content: '▹';
  color: var(--phosphor-green);
  font-size: 1.2rem;
}

/* Contact Section */
.contact-section {
  background: linear-gradient(135deg, rgba(10, 31, 46, 0.8), rgba(42, 45, 52, 0.6));
  backdrop-filter: blur(20px);
  padding: var(--space-3xl) var(--space-lg);
  position: relative;
  overflow: hidden;
}

.contact-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 20% 50%, rgba(0, 245, 255, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 50%, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
  animation: contact-glow 8s ease-in-out infinite;
  pointer-events: none;
}

@keyframes contact-glow {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-lg);
  padding: var(--space-lg);
  background: rgba(26, 26, 26, 0.6);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(59, 130, 246, 0.2);
  transition: var(--transition-base);
}

.contact-item:hover {
  border-color: var(--quantum-cyan);
  transform: translateX(5px);
  box-shadow: var(--shadow-quantum);
}

.contact-icon {
  font-size: 1.8rem;
  color: var(--quantum-cyan);
  flex-shrink: 0;
}

.contact-details h4 {
  font-size: var(--font-size-base);
  margin-bottom: var(--space-xs);
  color: #FFFFFF;
}

.contact-details p,
.contact-details a {
  font-size: var(--font-size-sm);
  color: #9CA3AF;
  margin: 0;
}

/* Contact Form */
.contact-form {
  background: rgba(26, 26, 26, 0.8);
  backdrop-filter: blur(20px);
  padding: var(--space-2xl);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(59, 130, 246, 0.3);
  box-shadow: var(--shadow-deep);
}

.form-group {
  margin-bottom: var(--space-lg);
}

.form-group label {
  display: block;
  margin-bottom: var(--space-sm);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: #E5E7EB;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-control {
  width: 100%;
  padding: var(--space-md);
  font-size: var(--font-size-base);
  font-family: var(--font-secondary);
  color: #FFFFFF;
  background: rgba(42, 45, 52, 0.6);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: var(--radius-md);
  transition: var(--transition-base);
}

.form-control:focus {
  outline: none;
  border-color: var(--quantum-cyan);
  box-shadow: 0 0 20px rgba(0, 245, 255, 0.2);
  background: rgba(42, 45, 52, 0.8);
}

.form-control::placeholder {
  color: #6B7280;
}

textarea.form-control {
  min-height: 150px;
  resize: vertical;
}

.checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.checkbox-group input[type="checkbox"] {
  margin-top: 0.25rem;
  width: 1rem;
  height: 1rem;
  accent-color: var(--quantum-cyan);
  cursor: pointer;
}

.checkbox-group label {
  font-size: var(--font-size-xs);
  color: #9CA3AF;
  text-transform: none;
  letter-spacing: normal;
  font-weight: 400;
  line-height: 1.5;
  margin: 0;
}

.form-submit {
  width: 100%;
}

/* Map Container */
.map-container {
  width: 100%;
  height: 400px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(59, 130, 246, 0.2);
  box-shadow: var(--shadow-membrane);
  margin-top: var(--space-xl);
}

.map-container iframe {
  width: 100%;
  height: 100%;
  border: none;
  filter: grayscale(0.8) invert(0.9) contrast(0.9);
}

/* Footer */
.site-footer {
  background: rgba(13, 13, 13, 0.9);
  backdrop-filter: blur(10px);
  padding: var(--space-xl) var(--space-lg);
  border-top: 1px solid rgba(59, 130, 246, 0.2);
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  align-items: center;
  text-align: center;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-lg);
  justify-content: center;
}

.footer-nav a {
  font-size: var(--font-size-xs);
  color: #9CA3AF;
  transition: var(--transition-base);
}

.footer-nav a:hover {
  color: var(--quantum-cyan);
}

.footer-copyright {
  font-size: var(--font-size-xs);
  color: #6B7280;
}

.footer-year {
  color: var(--quantum-cyan);
}

/* Cookie Popup */
.cookie-popup {
  position: fixed;
  bottom: var(--space-lg);
  left: 50%;
  transform: translateX(-50%);
  max-width: 500px;
  width: 90%;
  background: rgba(26, 26, 26, 0.95);
  backdrop-filter: blur(20px);
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(0, 245, 255, 0.3);
  box-shadow: 0 10px 40px rgba(0, 245, 255, 0.2);
  z-index: 10000;
  display: none;
}

.cookie-popup.show {
  display: block;
  animation: slide-up 0.5s ease;
}

@keyframes slide-up {
  from {
    transform: translateX(-50%) translateY(100px);
    opacity: 0;
  }
  to {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
  }
}

.cookie-content p {
  font-size: var(--font-size-sm);
  color: #D1D5DB;
  margin-bottom: var(--space-md);
}

.cookie-buttons {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.cookie-buttons .btn {
  flex: 1;
  min-width: 120px;
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-size-sm);
}

/* Thank You Page */
.thank-you-container {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-3xl) var(--space-lg);
}

.thank-you-content {
  max-width: 600px;
}

.success-icon {
  font-size: 5rem;
  color: var(--phosphor-green);
  margin-bottom: var(--space-xl);
  animation: success-pulse 2s ease-in-out infinite;
}

@keyframes success-pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.1); opacity: 0.8; }
}

/* 404 Page */
.error-container {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-3xl) var(--space-lg);
}

.error-content {
  max-width: 600px;
}

.error-code {
  font-size: 8rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--quantum-cyan), var(--quantum-violet));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: var(--space-lg);
  animation: glitch 3s ease-in-out infinite;
}

@keyframes glitch {
  0%, 100% { transform: translate(0); }
  20% { transform: translate(-2px, 2px); }
  40% { transform: translate(2px, -2px); }
  60% { transform: translate(-2px, -2px); }
  80% { transform: translate(2px, 2px); }
}

/* Responsive Design */
@media (max-width: 968px) {
  :root {
    --font-size-5xl: 2.25rem;
    --font-size-4xl: 1.875rem;
    --font-size-3xl: 1.5rem;
  }
  
  .contact-wrapper {
    grid-template-columns: 1fr;
  }
  
  .product-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .site-header {
    width: 100%;
    top: 0;
    border-radius: 0;
    padding: var(--space-md);
  }
  
  .main-content {
    padding-top: 5rem;
  }
  
  .menu-toggle {
    display: flex;
  }
  
  .main-nav {
    position: fixed;
    top: 4.5rem;
    left: 0;
    width: 100%;
    background: rgba(13, 13, 13, 0.98);
    backdrop-filter: blur(20px);
    padding: var(--space-xl);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-quantum);
    border-bottom: 1px solid rgba(0, 245, 255, 0.2);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.8);
  }
  
  .main-nav.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .main-nav ul {
    flex-direction: column;
    gap: var(--space-md);
  }
  
  .main-nav a {
    display: block;
    padding: var(--space-md);
    width: 100%;
    text-align: left;
    border-bottom: 1px solid rgba(59, 130, 246, 0.1);
  }
  
  .hero-section {
    min-height: 70vh;
    padding: var(--space-2xl) var(--space-md);
  }
  
  .hero-title {
    font-size: var(--font-size-3xl);
  }
  
  .hero-subtitle {
    font-size: var(--font-size-base);
  }
  
  .section {
    padding: var(--space-2xl) var(--space-md);
  }
  
  .card-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  :root {
    --font-size-5xl: 1.875rem;
    --font-size-4xl: 1.5rem;
    --font-size-3xl: 1.25rem;
  }
  
  .logo {
    font-size: var(--font-size-base);
  }
  
  .btn {
    padding: var(--space-sm) var(--space-lg);
    font-size: var(--font-size-sm);
  }
  
  .error-code {
    font-size: 5rem;
  }
  
  .cookie-popup {
    width: 95%;
    padding: var(--space-md);
  }
  
  .cookie-buttons {
    flex-direction: column;
  }
  
  .cookie-buttons .btn {
    width: 100%;
  }
}

/* ============================================
   Responsive – 320px Mobile Optimization
   ============================================ */
@media (max-width: 320px) {

  html {
    font-size: 13px;
  }

  /* Header */
  .site-header {
    padding: var(--space-sm) var(--space-md);
    top: var(--space-sm);
    width: 96%;
  }

  .header-container {
    gap: var(--space-sm);
  }

  .logo {
    font-size: 1rem;
    letter-spacing: 0.05em;
  }

  /* Navigation becomes mobile */
  .main-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 75%;
    height: 100vh;
    background: rgba(13, 13, 13, 0.95);
    backdrop-filter: blur(20px);
    padding: var(--space-2xl) var(--space-lg);
    transition: right 0.4s ease;
    z-index: 1500;
  }

  .main-nav.active {
    right: 0;
  }

  .main-nav ul {
    flex-direction: column;
    gap: var(--space-xl);
  }

  .main-nav a {
    font-size: 1rem;
    padding: var(--space-sm) 0;
  }

  /* Mobile menu button visible */
  .menu-toggle {
    display: flex;
  }

  /* Hero Section */
  .hero-section {
    padding: var(--space-2xl) var(--space-md);
    min-height: 75vh;
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .hero-section::before {
    width: 450px;
    height: 450px;
  }

  /* Buttons */
  .btn {
    width: 100%;
    padding: var(--space-md) 0;
    font-size: 0.9rem;
  }

  /* Cards */
  .card-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .quantum-card {
    padding: var(--space-lg);
  }

  /* Features list */
  .features-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  /* Product Cards */
  .product-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .product-image {
    height: 180px;
  }

  .product-content {
    padding: var(--space-lg);
  }

  .product-title {
    font-size: 1.2rem;
  }

  .product-price {
    font-size: 1.6rem;
  }

  /* Contact Section */
  .contact-wrapper {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

  .contact-item {
    padding: var(--space-md);
  }

  .contact-form {
    padding: var(--space-xl);
  }

  /* Typography scaling */
  h1 { font-size: 1.9rem; }
  h2 { font-size: 15px; }
  h3 { font-size: 1.3rem; }
  h4 { font-size: 1.1rem; }

  p,
  .section-description {
    font-size: 0.9rem;
  }

  /* Reduce background intensity for performance */
  body::before,
  .hero-section::before,
  .product-image::before {
    opacity: 0.25 !important;
    animation: none !important;
  }

  /* Footer (if exists) */
  footer {
    padding: var(--space-xl) var(--space-md);
    text-align: center;
  }

}


/* Accessibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Focus Styles */
*:focus {
  outline: 2px solid var(--quantum-cyan);
  outline-offset: 2px;
}

/* Print Styles */
@media print {
  body::before,
  .quantum-grid,
  .site-header,
  .site-footer,
  .cookie-popup {
    display: none !important;
  }
  
  body {
    background: white;
    color: black;
  }
}