:root {
  /* Color Variables */
  --deep-space-blue: #0B132B;
  --dark-navy: #1C2541;
  --storm-steel: #3A506B;
  --muted-aqua: #5BC0BE;
  --carbon-shadow: #0F2027;
  --pure-white: #ffffff;
  --off-white: #f7f9fc;
  --light-gray: #e6ecf1;
  --medium-gray: #b8c4d0;
  --success-green: #4CAF50;
  
  /* Typography */
  --font-primary: 'Space Grotesk', sans-serif;
  --font-secondary: 'Geologica', sans-serif;
  --fs-xs: 0.75rem;
  --fs-sm: 0.875rem;
  --fs-md: 1rem;
  --fs-lg: 1.125rem;
  --fs-xl: 1.5rem;
  --fs-xxl: 2rem;
  --fs-xxxl: 3rem;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-xxl: 3rem;
  
  /* Elements */
  --border-radius-sm: 0.25rem;
  --border-radius-md: 0.5rem;
  --border-radius-lg: 1rem;
  --border-radius-full: 9999px;
  
  /* Effects */
  --shadow-sm: 0 2px 8px rgba(11, 19, 43, 0.06);
  --shadow-md: 0 4px 12px rgba(11, 19, 43, 0.08);
  --shadow-lg: 0 8px 24px rgba(11, 19, 43, 0.12);
  --transition-fast: 0.2s ease-out;
  --transition-medium: 0.3s ease-in-out;
  --transition-slow: 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  height: 100%;
}

body {
  font-family: var(--font-primary);
  line-height: 1.6;
  color: var(--deep-space-blue);
  background-color: var(--off-white);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

main {
  flex: 1;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-secondary);
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: var(--space-md);
  color: var(--dark-navy);
}

h1 {
  font-size: var(--fs-xxxl);
}

h2 {
  font-size: var(--fs-xxl);
}

h3 {
  font-size: var(--fs-xl);
}

h4 {
  font-size: var(--fs-lg);
}

p, ul, ol {
  margin-bottom: var(--space-md);
}

a {
  color: var(--muted-aqua);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover, a:focus {
  color: var(--storm-steel);
}

img, svg {
  max-width: 100%;
  height: auto;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* Navigation & Header */
.header {
  position: relative;
  padding: var(--space-md) 15px;
  z-index: 100;
  transition: transform var(--transition-medium);
}

.header.hidden {
  transform: translateY(-100%);
}

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

.logo {
  font-family: var(--font-secondary);
  font-weight: 700;
  color: var(--deep-space-blue);
  display: flex;
  align-items: center;
  transition: transform var(--transition-medium);
}

.logo:hover {
  transform: scale(1.03);
}

.logo span {
  color: var(--muted-aqua);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--deep-space-blue);
  font-size: var(--fs-xl);
  cursor: pointer;
  z-index: 101;
}

.nav {
  display: flex;
  gap: var(--space-lg);
}

.nav-link {
  font-family: var(--font-secondary);
  font-weight: 500;
  color: var(--storm-steel);
  position: relative;
  padding: var(--space-xs) 0;
  font-size: var(--fs-sm);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.nav-link:hover {
  color: var(--deep-space-blue);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--muted-aqua);
  transition: width var(--transition-medium);
}

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

/* Hero Section */
.hero {
  position: relative;
  padding: var(--space-xxl) 0;
  background-color: var(--deep-space-blue);
  color: var(--pure-white);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(120deg, transparent 30%, rgba(91, 192, 190, 0.2) 70%);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 600px;
}

.hero-title {
  font-size: calc(var(--fs-xxxl) * 1.2);
  margin-bottom: var(--space-md);
  color: var(--pure-white);
}

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

.hero-cta {
  display: inline-block;
}

.hero-image {
  position: absolute;
  right: -10%;
  top: 50%;
  transform: translateY(-50%);
  width: 60%;
  max-width: 700px;
  z-index: 0;
  opacity: 0.8;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  font-family: var(--font-secondary);
  font-weight: 600;
  font-size: var(--fs-md);
  color: var(--pure-white);
  background-color: var(--muted-aqua);
  border: none;
  border-radius: var(--border-radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
  white-space: nowrap;
}

.btn:hover {
  background-color: var(--storm-steel);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background-color: transparent;
  border: 2px solid var(--muted-aqua);
  color: var(--muted-aqua);
}

.btn-outline:hover {
  background-color: var(--muted-aqua);
  color: var(--pure-white);
}

.btn-dark {
  background-color: var(--dark-navy);
}

.btn-dark:hover {
  background-color: var(--deep-space-blue);
}

/* Section Styling */
.section {
  padding: var(--space-xxl) 0;
}

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

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background-color: var(--muted-aqua);
  margin: var(--space-sm) auto 0;
}

/* Features */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
  margin: var(--space-xl) 0;
}

.feature {
  text-align: center;
  padding: var(--space-lg);
  border-radius: var(--border-radius-lg);
  background-color: var(--pure-white);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-medium), box-shadow var(--transition-medium);
}

.feature:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 70px;
  height: 70px;
  margin: 0 auto var(--space-md);
  background-color: var(--light-gray);
  border-radius: var(--border-radius-full);
  color: var(--muted-aqua);
  font-size: var(--fs-xl);
  transition: all var(--transition-medium);
}

.feature:hover .feature-icon {
  background-color: var(--muted-aqua);
  color: var(--pure-white);
}

.feature-title {
  margin-bottom: var(--space-sm);
  font-size: var(--fs-lg);
}

/* Products */
.products {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-xl);
  margin: var(--space-xl) 0;
}

.product-card {
  position: relative;
  background-color: var(--pure-white);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-medium), box-shadow var(--transition-medium);
}

.product-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.product-image {
  width: 100%;
  height: 220px;
  object-fit: cover;
  transition: transform var(--transition-medium);
}

.product-card:hover .product-image {
  transform: scale(1.05);
}

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

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

.product-description {
  margin-bottom: var(--space-md);
  color: var(--storm-steel);
  font-size: var(--fs-sm);
}

.product-price {
  font-weight: 700;
  color: var(--deep-space-blue);
  font-size: var(--fs-lg);
  margin-bottom: var(--space-md);
}

.product-badge {
  position: absolute;
  top: var(--space-md);
  left: var(--space-md);
  background-color: var(--muted-aqua);
  color: var(--pure-white);
  font-size: var(--fs-xs);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--border-radius-sm);
  text-transform: uppercase;
  font-weight: 600;
  letter-spacing: 0.05em;
}

/* Testimonials */
.testimonial {
  background-color: var(--pure-white);
  padding: var(--space-lg);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--space-lg);
}

.testimonial-text {
  font-style: italic;
  color: var(--storm-steel);
  margin-bottom: var(--space-md);
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.testimonial-author-image {
  width: 50px;
  height: 50px;
  border-radius: var(--border-radius-full);
  object-fit: cover;
}

.testimonial-author-name {
  font-weight: 600;
  margin-bottom: 0;
}

.testimonial-author-title {
  font-size: var(--fs-sm);
  color: var(--medium-gray);
}

/* Contact Form */
.contact-form {
  background-color: var(--pure-white);
  padding: var(--space-xl);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  max-width: 600px;
  margin: 0 auto;
}

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

.form-label {
  display: block;
  margin-bottom: var(--space-xs);
  font-weight: 500;
  color: var(--deep-space-blue);
}

.form-control {
  width: 100%;
  padding: var(--space-sm);
  font-family: var(--font-primary);
  font-size: var(--fs-md);
  color: var(--deep-space-blue);
  background-color: var(--light-gray);
  border: 1px solid transparent;
  border-radius: var(--border-radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
  border-color: var(--muted-aqua);
  outline: none;
  box-shadow: 0 0 0 3px rgba(91, 192, 190, 0.2);
}

.form-control::placeholder {
  color: var(--medium-gray);
}

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

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

.form-check-input {
  margin-top: 0.2rem;
}

.form-check-label {
  font-size: var(--fs-sm);
  color: var(--storm-steel);
}

/* Footer */
.footer {
  background-color: var(--deep-space-blue);
  color: var(--light-gray);
  padding: var(--space-xl) 0;
  margin-top: auto;
}

.footer-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-lg);
}

.footer-logo {
  font-family: var(--font-secondary);
  font-size: var(--fs-lg);
  font-weight: 700;
  color: var(--pure-white);
  margin-bottom: var(--space-md);
  display: block;
}

.footer-logo span {
  color: var(--muted-aqua);
}

.footer-text {
  margin-bottom: var(--space-md);
  font-size: var(--fs-sm);
  color: var(--medium-gray);
}

.footer-title {
  color: var(--pure-white);
  font-size: var(--fs-md);
  margin-bottom: var(--space-md);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-link {
  margin-bottom: var(--space-sm);
}

.footer-link a {
  color: var(--medium-gray);
  font-size: var(--fs-sm);
  transition: color var(--transition-fast);
}

.footer-link a:hover {
  color: var(--muted-aqua);
}

.footer-social {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.footer-social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--pure-white);
  border-radius: var(--border-radius-full);
  transition: all var(--transition-fast);
}

.footer-social-link:hover {
  background-color: var(--muted-aqua);
  color: var(--pure-white);
  transform: translateY(-3px);
}

.footer-bottom {
  margin-top: var(--space-lg);
  padding-top: var(--space-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.footer-copyright {
  font-size: var(--fs-xs);
  color: var(--medium-gray);
}

.footer-bottom-links {
  display: flex;
  gap: var(--space-md);
}

.footer-bottom-link {
  font-size: var(--fs-xs);
  color: var(--medium-gray);
}

/* Map */
.map-container {
  height: 400px;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.map-container iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

/* Cookie Policy */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: var(--dark-navy);
  color: var(--pure-white);
  padding: var(--space-md);
  z-index: 1000;
  transform: translateY(100%);
  transition: transform var(--transition-medium);
}

.cookie-banner.show {
  transform: translateY(0);
}

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

.cookie-text {
  flex: 1;
  font-size: var(--fs-sm);
  margin: 0;
}

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

/* 404 Page */
.error-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 70vh;
  padding: var(--space-xxl) 0;
}

.error-code {
  font-size: 8rem;
  font-weight: 800;
  line-height: 1;
  margin-bottom: var(--space-md);
  background: linear-gradient(135deg, var(--muted-aqua), var(--storm-steel));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.error-title {
  margin-bottom: var(--space-md);
}

.error-text {
  max-width: 500px;
  margin-bottom: var(--space-lg);
}

/* Thank You Page */
.thank-you-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 70vh;
  padding: var(--space-xxl) 0;
}

.thank-you-icon {
  font-size: 5rem;
  color: var(--success-green);
  margin-bottom: var(--space-lg);
}

.thank-you-title {
  margin-bottom: var(--space-md);
}

.thank-you-text {
  max-width: 500px;
  margin-bottom: var(--space-lg);
}

/* Quantum Membrane Effect */
.quantum-membrane {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
  opacity: 0.1;
  mix-blend-mode: overlay;
}

/* Animations */
@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

.float-element {
  animation: float 5s ease-in-out infinite;
}

/* Responsive Styles */
@media (max-width: 1200px) {
  .hero-title {
    font-size: var(--fs-xxxl);
  }
  
  .hero-image {
    right: -20%;
    width: 70%;
  }
}

@media (max-width: 992px) {
  :root {
    --fs-xxxl: 2.5rem;
    --fs-xxl: 1.75rem;
    --fs-xl: 1.375rem;
  }
  
  .hero-content {
    max-width: 100%;
  }
  
  .hero-image {
    position: relative;
    right: auto;
    top: auto;
    transform: none;
    width: 100%;
    max-width: 500px;
    margin: var(--space-lg) auto 0;
    display: block;
  }
}

@media (max-width: 768px) {
  :root {
    --space-xxl: 2.5rem;
  }
  
  .header-container {
    padding: var(--space-sm) 0;
  }
  
  .nav-toggle {
    display: block;
  }
  
  .nav {
    position: fixed;
    top: 0;
    right: 0;
    height: 100vh;
    width: 250px;
    background-color: var(--pure-white);
    box-shadow: var(--shadow-lg);
    padding: var(--space-xxl) var(--space-lg);
    flex-direction: column;
    gap: var(--space-lg);
    transform: translateX(100%);
    transition: transform var(--transition-medium);
    z-index: 100;
  }
  
  .nav.open {
    transform: translateX(0);
  }
  
  .section-title {
    font-size: var(--fs-xxl);
  }
}

@media (max-width: 576px) {
  :root {
    --fs-xxxl: 2rem;
    --fs-xxl: 1.5rem;
    --fs-xl: 1.25rem;
    --space-xxl: 2rem;
  }
  
  .btn {
    padding: var(--space-sm) var(--space-md);
    font-size: var(--fs-sm);
  }
  
  .footer-bottom {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--space-md);
  }
   .nav-toggle {
    display: block;
  }
}
/* Enhanced 320px Responsive Design - Quantum Membrane Adaptation */
@media (max-width: 320px) {
  /* Recalibrated Typography Scale */
  :root {
    --fs-xxxl: 1.75rem;   /* Hero title */
    --fs-xxl: 1.375rem;   /* Section titles */
    --fs-xl: 1.125rem;    /* Card headers */
    --fs-lg: 1rem;        /* Product titles */
    --fs-md: 0.875rem;    /* Body text */
    --fs-sm: 0.75rem;     /* Secondary text */
    --fs-xs: 0.675rem;    /* Micro text */
    
    /* Compressed Spacing */
    --space-xxl: 1.5rem;  /* Section padding */
    --space-xl: 1.25rem;  /* Component margins */
    --space-lg: 1rem;     /* Card padding */
    --space-md: 0.75rem;  /* Element spacing */
    --space-sm: 0.375rem; /* Button padding */
    --space-xs: 0.25rem;  /* Micro spacing */
  }
  
  /* Header & Navigation Membrane */
  .header-container {
    padding: 0.5rem 0;
  }
  
  .logo {
    transform-origin: left center;
  }
  
  .nav {
    width: 85%;  /* Wider mobile menu */
  }
  
  /* Fluid Content Adaptation */
  .container {
    padding: 0 0.75rem;
  }
  
  /* Hero Quantum Compression */
  .hero {
    padding: var(--space-lg) 0;
  }
  
  .hero-title {
    margin-bottom: 0.5rem;
  }
  
  .hero-description {
    font-size: var(--fs-md);
    margin-bottom: 0.75rem;
  }
  
  /* Interactive Elements */
  .btn {
    padding: 0.35rem 0.75rem;
    min-height: 2.5rem;
    width: 100%;
    margin-bottom: 0.5rem;
  }
  
  /* Cellular Grid Adaptation */
  .features, 
  .products {
    gap: 0.75rem;
    margin: 1rem 0;
  }
  
  .feature, 
  .product-card {
    padding: 0.75rem;
  }
  
  .feature-icon {
    width: 50px;
    height: 50px;
    margin-bottom: 0.5rem;
  }
  
  .product-image {
    height: 160px;
  }
  
  .product-content {
    padding: 0.75rem;
  }
  
  /* Forms & Input Fields */
  .contact-form {
    padding: 1rem;
  }
  
  .form-group {
    margin-bottom: 0.75rem;
  }
  
  textarea.form-control {
    min-height: 100px;
  }
  
  /* Footer Quantum Field */
  .footer {
    padding: 1.25rem 0 0.75rem;
  }
  
  .footer-container {
    gap: 1rem;
  }
  
  .footer-social {
    gap: 0.5rem;
  }
  
  .footer-social-link {
    width: 30px;
    height: 30px;
  }
  
  /* Quantum Membrane Visual Effect */
  .cosmic-background {
    background: 
      radial-gradient(circle at 30% 20%, rgba(91, 192, 190, 0.07) 0%, transparent 30%),
      radial-gradient(circle at 70% 80%, rgba(27, 37, 65, 0.07) 0%, transparent 25%);
  }
}

/* Prefers reduced motion */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* 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-width: 0;
}

/* Visual accessibility */
:focus-visible {
  outline: 3px solid var(--muted-aqua);
  outline-offset: 3px;
}

/* Cosmic Topography Background Effect */
.cosmic-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 20% 30%, rgba(91, 192, 190, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(27, 37, 65, 0.1) 0%, transparent 40%);
  z-index: -1;
  opacity: 0.7;
}