@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;600;700&family=Urbanist:wght@300;400;500;600&display=swap');

:root {
  /* Colors - Quantum Membrane Palette */
  --color-primary: #0A1A2F;
  --color-secondary: #0D223B;
  --color-tertiary: #11263F;
  --color-accent: #162B48;
  --color-deep: #1B314F;
  
  /* Quantum Accent Colors */
  --color-quantum-cyan: #00D9FF;
  --color-quantum-teal: #4FD1C5;
  --color-quantum-violet: #A78BFA;
  --color-quantum-pink: #F472B6;
  
  /* Neutral Colors */
  --color-white: #FFFFFF;
  --color-light: #F8FAFC;
  --color-gray-100: #E2E8F0;
  --color-gray-200: #CBD5E1;
  --color-gray-300: #94A3B8;
  --color-gray-400: #64748B;
  
  /* Typography */
  --font-primary: 'Syne', sans-serif;
  --font-secondary: 'Urbanist', 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;
  --space-4xl: 6rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --shadow-quantum: 0 0 30px rgba(0, 217, 255, 0.3);
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 250ms ease-in-out;
  --transition-slow: 400ms ease-in-out;
  
  /* Z-index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal: 1040;
  --z-tooltip: 1050;
}

/* ==========================================
   RESET & BASE
   ========================================== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

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

/* Quantum Membrane Background */
body::before {
  content: '';
  position: fixed;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: 
    radial-gradient(ellipse at 20% 30%, rgba(0, 217, 255, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 70%, rgba(167, 139, 250, 0.12) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 50%, rgba(79, 209, 197, 0.08) 0%, transparent 60%);
  animation: quantumPulse 20s ease-in-out infinite;
  pointer-events: none;
  z-index: 0;
}

@keyframes quantumPulse {
  0%, 100% { transform: translate(0, 0) scale(1); opacity: 1; }
  50% { transform: translate(5%, 5%) scale(1.05); opacity: 0.8; }
}

/* Membrane Overlay */
body::after {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 2px,
      rgba(0, 217, 255, 0.03) 2px,
      rgba(0, 217, 255, 0.03) 4px
    );
  pointer-events: none;
  z-index: 0;
}

/* ==========================================
   TYPOGRAPHY
   ========================================== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-md);
  color: var(--color-white);
}

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

p {
  margin-bottom: var(--space-md);
  color: var(--color-gray-100);
}

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

a:hover {
  color: var(--color-quantum-teal);
}

/* ==========================================
   LAYOUT CONTAINERS
   ========================================== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
  position: relative;
  z-index: 1;
}

.section {
  padding: var(--space-3xl) 0;
  position: relative;
}

.section-title {
  text-align: center;
  margin-bottom: var(--space-2xl);
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-quantum-cyan), var(--color-quantum-teal));
  margin: var(--space-md) auto 0;
  border-radius: var(--radius-full);
}

/* ==========================================
   HEADER - QUANTUM COLLAPSE DESIGN
   ========================================== */
.header {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  padding: var(--space-lg) 0;
  z-index: var(--z-sticky);
  background: linear-gradient(180deg, rgba(10, 26, 47, 0.95) 0%, transparent 100%);
  backdrop-filter: blur(10px);
  transition: all var(--transition-base);
}

.header.scrolled {
  position: fixed;
  background: rgba(10, 26, 47, 0.98);
  backdrop-filter: blur(20px);
  box-shadow: 0 4px 20px rgba(0, 217, 255, 0.1);
  padding: var(--space-md) 0;
}

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

.logo {
  font-family: var(--font-primary);
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-white);
  text-transform: capitalize;
  position: relative;
  z-index: 2;
  transition: all var(--transition-base);
}

.logo:hover {
  color: var(--color-quantum-cyan);
  text-shadow: 0 0 20px rgba(0, 217, 255, 0.5);
}

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

.nav-menu a {
  font-family: var(--font-secondary);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-gray-100);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  position: relative;
}

.nav-menu a::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--color-quantum-cyan);
  transition: width var(--transition-base);
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--color-white);
}

.nav-menu a:hover::before,
.nav-menu a.active::before {
  width: 80%;
}

/* Burger Menu */
.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  z-index: var(--z-modal);
  padding: var(--space-sm);
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all var(--transition-base);
}

.burger:hover {
  background: rgba(0, 217, 255, 0.1);
  border-color: var(--color-quantum-cyan);
}

.burger span {
  width: 24px;
  height: 2px;
  background: var(--color-white);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

.burger.active span:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

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

.burger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* ==========================================
   HERO SECTION
   ========================================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden;
  padding-top: var(--space-4xl);
}

.hero::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80%;
  height: 80%;
  background: radial-gradient(ellipse, rgba(0, 217, 255, 0.2) 0%, transparent 70%);
  filter: blur(60px);
  animation: heroGlow 8s ease-in-out infinite;
}

@keyframes heroGlow {
  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: 2;
  max-width: 800px;
}

.hero h1 {
  font-size: var(--font-size-5xl);
  margin-bottom: var(--space-lg);
  background: linear-gradient(135deg, var(--color-white) 0%, var(--color-quantum-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: var(--font-size-lg);
  color: var(--color-gray-200);
  margin-bottom: var(--space-xl);
  line-height: 1.8;
}

/* ==========================================
   BUTTONS
   ========================================== */
.btn {
  display: inline-block;
  padding: var(--space-md) var(--space-xl);
  font-family: var(--font-secondary);
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  text-decoration: none;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0);
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  transition: transform var(--transition-slow);
}

.btn:hover::before {
  transform: translate(-50%, -50%) scale(2);
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-quantum-cyan) 0%, var(--color-quantum-teal) 100%);
  color: var(--color-primary);
  box-shadow: 0 4px 15px rgba(0, 217, 255, 0.3);
}

.btn-primary:hover {
  box-shadow: 0 6px 25px rgba(0, 217, 255, 0.5);
  transform: translateY(-2px);
}

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

.btn-secondary:hover {
  background: rgba(0, 217, 255, 0.1);
  border-color: var(--color-quantum-teal);
}

/* ==========================================
   CARDS
   ========================================== */
.card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  backdrop-filter: blur(10px);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(0, 217, 255, 0.05) 0%, transparent 50%);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.card:hover {
  transform: translateY(-5px);
  border-color: rgba(0, 217, 255, 0.3);
  box-shadow: 0 10px 30px rgba(0, 217, 255, 0.2);
}

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

.card-icon {
  font-size: var(--font-size-4xl);
  color: var(--color-quantum-cyan);
  margin-bottom: var(--space-md);
  display: block;
}
img {
  width: 100%;
}
.card h3 {
  margin-bottom: var(--space-sm);
}

.card p {
  font-size: var(--font-size-sm);
  color: var(--color-gray-200);
  margin-bottom: 0;
}

/* Product Cards */
.product-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: all var(--transition-base);
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 15px 40px rgba(0, 217, 255, 0.25);
}

.product-image {
  width: 100%;
  height: 250px;
  background: linear-gradient(135deg, var(--color-secondary), var(--color-tertiary));
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.product-image i {
  font-size: 4rem;
  color: var(--color-quantum-cyan);
  opacity: 0.3;
}

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

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

.product-description {
  font-size: var(--font-size-sm);
  color: var(--color-gray-200);
  margin-bottom: var(--space-md);
}

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

/* ==========================================
   GRID LAYOUTS
   ========================================== */
.grid {
  display: grid;
  gap: var(--space-xl);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ==========================================
   FORMS
   ========================================== */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-gray-100);
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--space-md);
  font-family: var(--font-secondary);
  font-size: var(--font-size-base);
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--color-quantum-cyan);
  box-shadow: 0 0 0 3px rgba(0, 217, 255, 0.1);
}

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

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

.form-checkbox input[type="checkbox"] {
  margin-top: 4px;
  width: 18px;
  height: 18px;
  cursor: pointer;
}

.form-checkbox label {
  font-size: var(--font-size-sm);
  color: var(--color-gray-200);
  cursor: pointer;
}

/* ==========================================
   CONTACT SECTION - UNIQUE DESIGN
   ========================================== */
.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: start;
}

.contact-info {
  position: sticky;
  top: var(--space-xl);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
  padding: var(--space-lg);
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: all var(--transition-base);
}

.contact-item:hover {
  background: rgba(0, 217, 255, 0.05);
  border-color: rgba(0, 217, 255, 0.2);
}

.contact-icon {
  font-size: var(--font-size-2xl);
  color: var(--color-quantum-cyan);
  min-width: 40px;
}

.contact-details h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-xs);
}

.contact-details p,
.contact-details a {
  font-size: var(--font-size-sm);
  color: var(--color-gray-200);
  margin: 0;
}

.contact-form {
  background: rgba(255, 255, 255, 0.04);
  padding: var(--space-2xl);
  border-radius: var(--radius-2xl);
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(20px);
}

/* Map */
.map-container {
  margin-top: var(--space-2xl);
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
  height: 400px;
}

.map-container iframe {
  width: 100%;
  height: 100%;
  border: none;
  filter: grayscale(1) invert(1) contrast(0.9);
}

/* ==========================================
   FOOTER
   ========================================== */
.footer {
  background: rgba(0, 0, 0, 0.3);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: var(--space-xl) 0 var(--space-md);
  margin-top: var(--space-4xl);
  position: relative;
  z-index: 1;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-lg);
  margin-bottom: var(--space-md);
}

.footer-menu {
  display: flex;
  list-style: none;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.footer-menu a {
  font-size: var(--font-size-xs);
  color: var(--color-gray-300);
  transition: color var(--transition-base);
}

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

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

.footer-bottom p {
  font-size: var(--font-size-xs);
  color: var(--color-gray-400);
  margin: 0;
}
.error-page .container,
.thankyou-page .container {
  padding: 90px 10px;
}
/* ==========================================
   MODAL - PRIVACY POPUP
   ========================================== */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(10px);
  z-index: var(--z-modal);
  justify-content: center;
  align-items: center;
  padding: var(--space-lg);
}

.modal.active {
  display: flex;
}

.modal-content {
  background: var(--color-secondary);
  border: 1px solid rgba(0, 217, 255, 0.2);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: 0 20px 60px rgba(0, 217, 255, 0.3);
}

.modal-close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  background: rgba(255, 255, 255, 0.1);
  border: none;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
  color: var(--color-white);
  font-size: var(--font-size-xl);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
}

.modal-close:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: rotate(90deg);
}

.modal h2 {
  margin-bottom: var(--space-lg);
}

.modal p {
  font-size: var(--font-size-sm);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}

/* ==========================================
   404 PAGE
   ========================================== */
.error-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

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

.error-code {
  font-size: 8rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--color-quantum-cyan), var(--color-quantum-violet));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-md);
  line-height: 1;
}

/* ==========================================
   THANK YOU PAGE
   ========================================== */
.thankyou-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

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

.thankyou-icon {
  font-size: 5rem;
  color: var(--color-quantum-cyan);
  margin-bottom: var(--space-lg);
  animation: successBounce 0.6s ease-in-out;
}

@keyframes successBounce {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.2); }
}

/* ==========================================
   RESPONSIVE DESIGN
   ========================================== */

/* Tablet */
@media (max-width: 1024px) {
  :root {
    --font-size-5xl: 2.5rem;
    --font-size-4xl: 2rem;
    --font-size-3xl: 1.75rem;
  }
  
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  
  .contact-wrapper {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }
  
  .contact-info {
    position: static;
  }
}

/* Mobile */
@media (max-width: 768px) {
  :root {
    --font-size-5xl: 2rem;
    --font-size-4xl: 1.75rem;
    --font-size-3xl: 1.5rem;
    --space-3xl: 3rem;
    --space-4xl: 4rem;
  }
  
  .burger {
    display: flex;
  }
  
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    max-width: 300px;
    height: 100vh;
    background: rgba(10, 26, 47, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: var(--space-4xl) var(--space-xl);
    border-left: 1px solid rgba(0, 217, 255, 0.2);
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5);
    transition: right var(--transition-slow);
    z-index: var(--z-fixed);
  }
  
  .nav-menu.active {
    right: 0;
  }
  
  .nav-menu a {
    width: 100%;
    padding: var(--space-md);
    text-align: left;
    font-size: var(--font-size-base);
  }
  
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
  
  .hero h1 {
    font-size: var(--font-size-4xl);
  }
  
  .footer-content {
    flex-direction: column;
    text-align: center;
  }
  
  .footer-menu {
    justify-content: center;
  }
  
  .section {
    padding: var(--space-2xl) 0;
  }
}

/* Small Mobile */
@media (max-width: 480px) {
  :root {
    --font-size-5xl: 1.75rem;
    --font-size-4xl: 1.5rem;
    --font-size-3xl: 1.25rem;
    --space-lg: 1rem;
    --space-xl: 1.5rem;
    --space-2xl: 2rem;
    --space-3xl: 2.5rem;
  }
  
  .container {
    padding: 0 var(--space-md);
  }
  
  .card,
  .product-card,
  .contact-form {
    padding: var(--space-md);
  }
  
  .btn {
    padding: var(--space-sm) var(--space-lg);
    font-size: var(--font-size-xs);
  }
  
  .modal-content {
    padding: var(--space-lg);
  }
  
  .product-image {
    height: 200px;
  }
}

/* ==========================================
   MOBILE OPTIMIZATION — 320px / 360px
   ========================================== */
@media (max-width: 480px) {

  /* Root font sizes */
  :root {
    --font-size-5xl: 2rem;
    --font-size-4xl: 1.75rem;
    --font-size-3xl: 1.5rem;
    --font-size-2xl: 1.25rem;
    --font-size-xl: 1.125rem;
    --font-size-lg: 1rem;
    --font-size-base: 0.95rem;
    --font-size-sm: 0.85rem;
  }

  /* Body padding */
  body {
    font-size: var(--font-size-base);
  }

  /* Container */
  .container {
    padding: 0 var(--space-md);
  }

  /* Header */
  .header {
    padding: var(--space-sm) 0;
  }

  .header-container {
    justify-content: space-between;
  }

  /* Disable desktop menu */
  .nav-menu {
    display: none;
  }

  /* Mobile burger menu */
  .burger {
    display: flex;
  }

  /* Mobile menu drawer */
  .nav-menu.active {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    right: 0;
    width: 75%;
    height: 100%;
    background: rgba(10, 26, 47, 0.98);
    padding: var(--space-2xl) var(--space-lg);
    gap: var(--space-lg);
    backdrop-filter: blur(10px);
    z-index: var(--z-modal);
    animation: slideIn 0.3s ease-out;
  }

  @keyframes slideIn {
    from { transform: translateX(100%); }
    to { transform: translateX(0); }
  }

  .nav-menu a {
    font-size: var(--font-size-base);
    padding: var(--space-sm) 0;
  }

  /* HERO */
  .hero {
    padding: var(--space-3xl) var(--space-md);
  }

  .hero h1 {
    font-size: var(--font-size-4xl);
    line-height: 1.2;
  }

  .hero p {
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-lg);
  }

  /* BUTTONS */
  .btn {
    padding: var(--space-sm) var(--space-lg);
    font-size: var(--font-size-sm);
  }

  /* GRID */
  .grid,
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr !important;
    gap: var(--space-lg);
  }

  /* CARD */
  .card {
    padding: var(--space-lg);
  }

  .card-icon {
    font-size: var(--font-size-3xl);
  }

  /* Product image */
  .product-image {
    height: 180px;
  }

  /* SECTION */
  .section {
    padding: var(--space-2xl) 0;
  }

  .section-title {
    margin-bottom: var(--space-xl);
  }

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

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

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

  .map-container {
    height: 250px;
  }

  /* MODAL */
  .modal-content {
    padding: var(--space-xl);
  }

  /* FOOTER */
  .footer-content {
    flex-direction: column;
    text-align: center;
  }

  .footer-menu {
    justify-content: center;
    gap: var(--space-md);
  }

  /* ERROR PAGE */
  .error-code {
    font-size: 5rem;
  }

  /* THANK YOU PAGE */
  .thankyou-icon {
    font-size: 3.5rem;
  }
}


/* ==========================================
   UTILITIES
   ========================================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }

.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

/* Quantum Accent Elements */
.quantum-accent {
  position: relative;
}

.quantum-accent::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: linear-gradient(45deg, var(--color-quantum-cyan), var(--color-quantum-violet));
  border-radius: inherit;
  opacity: 0.3;
  filter: blur(10px);
  z-index: -1;
  animation: quantumGlow 3s ease-in-out infinite;
}

@keyframes quantumGlow {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 0.6; }
}