:root {
  /* Colors */
  --color-navy: #0F172A;
  --color-slate: #1E293B;
  --color-blue: #3B82F6;
  --color-offwhite: #F1F5F9;
  --color-cyan: #38BDF8;
  
  /* Typography */
  --font-primary: 'Montserrat', sans-serif;
  --font-secondary: 'Raleway', sans-serif;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 4rem;
  
  /* Border radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  
  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
  --shadow-md: 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23);
  --shadow-lg: 0 10px 20px rgba(0,0,0,0.19), 0 6px 6px rgba(0,0,0,0.23);
  
  /* Transitions */
  --transition-fast: 0.3s ease;
  --transition-medium: 0.5s ease;
  --transition-slow: 0.8s ease;
}

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

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

body {
  font-family: var(--font-primary);
  background-color: var(--color-navy);
  color: var(--color-offwhite);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-secondary);
  margin-bottom: var(--space-md);
  line-height: 1.2;
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.75rem;
}

h4 {
  font-size: 1.5rem;
}

h5 {
  font-size: 1.25rem;
}

h6 {
  font-size: 1rem;
}

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

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

a:hover {
  color: var(--color-blue);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Container */
.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-md);
}

/* Buttons */
.button {
  display: inline-block;
  background-color: var(--color-blue);
  color: white;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: background-color var(--transition-fast);
  font-weight: 600;
  text-align: center;
}

.button:hover {
  background-color: var(--color-cyan);
  color: white;
}

.button-secondary {
  background-color: transparent;
  color: var(--color-blue);
  border: 1px solid var(--color-blue);
}

.button-secondary:hover {
  background-color: var(--color-blue);
  color: white;
}

/* Cards */
.card {
  background-color: var(--color-slate);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  box-shadow: var(--shadow-md);
  margin-bottom: var(--space-lg);
  transition: transform var(--transition-medium);
}

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

/* Header */
header {
  background-color: var(--color-navy);
  padding: var(--space-md) 0;
  position: relative;
  z-index: 100;
  transition: transform var(--transition-fast);
}

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

.logo {
  font-family: var(--font-secondary);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-offwhite);
}

/* Navigation */
.nav {
  display: flex;
}

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

.nav-link {
  color: var(--color-offwhite);
  font-weight: 500;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-cyan);
  transition: width var(--transition-fast);
}

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

.mobile-menu-toggle {
  display: none;
  cursor: pointer;
  background: none;
  border: none;
  color: var(--color-offwhite);
  font-size: 1.5rem;
}

/* Sections */
section {
  padding: var(--space-xl) 0;
}

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

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 50px;
  height: 3px;
  background-color: var(--color-blue);
}

/* Hero */
.hero {
  background-color: var(--color-navy);
  position: relative;
  overflow: hidden;
  padding: var(--space-xl) 0;
}

.hero-content {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 2;
}

.hero-title {
  font-size: 3rem;
  margin-bottom: var(--space-md);
}

.hero-description {
  font-size: 1.25rem;
  margin-bottom: var(--space-lg);
}

/* Features */
.features {
  background-color: var(--color-slate);
}

.features-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
}

.feature-card {
  text-align: center;
  padding: var(--space-lg);
}

.feature-icon {
  font-size: 2.5rem;
  color: var(--color-blue);
  margin-bottom: var(--space-md);
}

/* Products */
.products-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
}

.product-card {
  display: flex;
  flex-direction: column;
}

.product-image {
  height: 200px;
  background-color: var(--color-slate);
  margin-bottom: var(--space-md);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.product-title {
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
}

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

/* Contact */
.contact-form {
  background-color: var(--color-slate);
  padding: var(--space-lg);
  border-radius: var(--radius-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;
}

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--space-sm);
  border: 1px solid var(--color-navy);
  border-radius: var(--radius-sm);
  background-color: var(--color-offwhite);
  color: var(--color-navy);
}

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

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

.form-checkbox input {
  margin-top: 5px;
}

.map-container {
  height: 300px;
  margin-top: var(--space-lg);
  border-radius: var(--radius-md);
  overflow: hidden;
}

/* Footer */
footer {
  background-color: var(--color-navy);
  padding: var(--space-lg) 0;
  margin-top: auto;
}

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

.footer-links {
  display: flex;
  list-style: none;
  gap: var(--space-md);
}

.copyright {
  text-align: center;
  margin-top: var(--space-lg);
  font-size: 0.875rem;
  color: var(--color-offwhite);
  opacity: 0.8;
}

/* Cookie Consent */
.cookie-consent {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: var(--color-navy);
  padding: var(--space-md);
  box-shadow: var(--shadow-lg);
  z-index: 1000;
  display: none;
}

.cookie-consent.active {
  display: block;
}

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

/* Contact Page Custom Styles */
.contact-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
}

.contact-info {
  padding: var(--space-lg);
  background-color: var(--color-slate);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: var(--space-lg);
}

.contact-info-icon {
  font-size: 1.5rem;
  color: var(--color-blue);
  margin-right: var(--space-md);
  min-width: 30px;
  text-align: center;
}

.social-media {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.social-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: var(--color-blue);
  color: white;
  border-radius: 50%;
  transition: transform var(--transition-fast), background-color var(--transition-fast);
}

.social-icon:hover {
  transform: translateY(-3px);
  background-color: var(--color-cyan);
}

/* 404 Page */
.error-page {
  text-align: center;
  padding: var(--space-xl) 0;
}

.error-code {
  font-size: 6rem;
  font-weight: 700;
  color: var(--color-blue);
  margin-bottom: var(--space-md);
}

.error-message {
  font-size: 2rem;
  margin-bottom: var(--space-lg);
}

/* Thank You Page */
.thank-you-page {
  text-align: center;
  padding: var(--space-xl) 0;
}

/* Responsive */
@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: block;
  }
  
  .nav-list {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--color-slate);
    padding: var(--space-md) 0;
    box-shadow: var(--shadow-md);
  }
  
  .nav-list.active {
    display: flex;
  }
  
  .nav-item {
    width: 100%;
    text-align: center;
    padding: var(--space-sm) 0;
  }
  
  .features-container,
  .products-container {
    grid-template-columns: 1fr;
  }
  
  .footer-container {
    flex-direction: column;
    text-align: center;
  }
  
  .footer-links {
    justify-content: center;
    flex-wrap: wrap;
  }
  
  .contact-container {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  html {
    font-size: 14px;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-description {
    font-size: 1rem;
  }
}

/* Accessibility */
:focus {
  outline: 2px solid var(--color-cyan);
  outline-offset: 2px;
}

.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;
}

/* Custom collapsible header */
.header-collapsed {
  transform: translateY(-100%);
}

.header-visible {
  transform: translateY(0);
}