/* ========================================
   Hill Tuff Modulars - Premium Design System
   Engineered for the Hills
   ======================================== */

/* ========== Design Tokens ========== */
:root {
  /* Color Palette - Dark Premium Theme */
  --color-primary: #1a1f2e;
  /* Deep slate background */
  --color-secondary: #2c3442;
  /* Lighter slate */
  --color-accent: #4a7c59;
  /* Hill green from logo */
  --color-accent-hover: #5a9269;
  /* Lighter green */
  --color-gold: #d4a574;
  /* Premium bronze/gold */
  --color-wood: #8b6f47;
  /* Warm wood tone */

  /* Semantic Colors */
  --color-bg-primary: #0f1419;
  /* Main background */
  --color-bg-secondary: #1a1f2e;
  /* Card background */
  --color-bg-glass: rgba(42, 52, 66, 0.7);
  /* Glassmorphism */
  --color-text-primary: #f8f9fa;
  /* Main text */
  --color-text-secondary: #b8c1cc;
  /* Secondary text */
  --color-text-muted: #6c7a89;
  /* Muted text */

  /* Feature Colors */
  --color-waterproof: #2196F3;
  /* Blue for waterproof */
  --color-termite: #FF9800;
  /* Orange for termite */
  --color-fire: #F44336;
  /* Red for fire safety */

  /* Gradients */
  --gradient-hero: linear-gradient(135deg, #1a1f2e 0%, #2c3442 50%, #1a2332 100%);
  --gradient-accent: linear-gradient(135deg, #4a7c59 0%, #5a9269 100%);
  --gradient-gold: linear-gradient(135deg, #d4a574 0%, #e6b87d 100%);
  --gradient-overlay: linear-gradient(180deg, rgba(15, 20, 25, 0) 0%, rgba(15, 20, 25, 0.8) 100%);

  /* Spacing */
  --spacing-xs: 0.5rem;
  /* 8px */
  --spacing-sm: 1rem;
  /* 16px */
  --spacing-md: 1.5rem;
  /* 24px */
  --spacing-lg: 2rem;
  /* 32px */
  --spacing-xl: 3rem;
  /* 48px */
  --spacing-2xl: 4rem;
  /* 64px */
  --spacing-3xl: 6rem;
  /* 96px */

  /* Typography */
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-heading: 'Outfit', 'Inter', sans-serif;

  --font-size-xs: 0.75rem;
  /* 12px */
  --font-size-sm: 0.875rem;
  /* 14px */
  --font-size-base: 1rem;
  /* 16px */
  --font-size-lg: 1.125rem;
  /* 18px */
  --font-size-xl: 1.25rem;
  /* 20px */
  --font-size-2xl: 1.5rem;
  /* 24px */
  --font-size-3xl: 2rem;
  /* 32px */
  --font-size-4xl: 2.5rem;
  /* 40px */
  --font-size-5xl: 3rem;
  /* 48px */
  --font-size-6xl: 4rem;
  /* 64px */

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.2);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 30px rgba(74, 124, 89, 0.3);

  /* Border Radius */
  --radius-sm: 0.375rem;
  /* 6px */
  --radius-md: 0.5rem;
  /* 8px */
  --radius-lg: 1rem;
  /* 16px */
  --radius-xl: 1.5rem;
  /* 24px */
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Container */
  --container-max-width: 1280px;
  --container-padding: var(--spacing-md);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  line-height: 1.7;
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ========== Typography ========== */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: var(--font-size-5xl);
}

h2 {
  font-size: var(--font-size-4xl);
}

h3 {
  font-size: var(--font-size-3xl);
}

h4 {
  font-size: var(--font-size-2xl);
}

h5 {
  font-size: var(--font-size-xl);
}

h6 {
  font-size: var(--font-size-lg);
}

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

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

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

/* ========== Container ========== */
.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

/* ========== Header & Navigation ========== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(15, 20, 25, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  transition: all var(--transition-base);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) 0;
}

.logo {
  height: 100px;
  width: auto;
  transition: transform var(--transition-base);
}

.logo:hover {
  transform: scale(1.05);
}



.mobile-toggle {
  display: none;
}

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

.nav-links a {
  color: var(--color-text-primary);
  font-weight: 500;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
}

.nav-links a:hover {
  color: var(--color-accent);
  background: rgba(74, 124, 89, 0.1);
}

/* ========== Hero Section ========== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: var(--gradient-hero);
  background-size: 400% 400%;
  animation: gradientShift 15s ease infinite;
  padding: var(--spacing-3xl) var(--spacing-md) var(--spacing-xl);
  position: relative;
  overflow: hidden;
}

@keyframes gradientShift {

  0%,
  100% {
    background-position: 0% 50%;
  }

  50% {
    background-position: 100% 50%;
  }
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(circle at 20% 50%, rgba(74, 124, 89, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 50%, rgba(212, 165, 116, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin-top: var(--spacing-3xl);
}

.hero h1 {
  font-size: var(--font-size-6xl);
  margin-bottom: var(--spacing-lg);
  color: var(--color-accent);
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);

  padding-right: 0.1em;
  animation: fadeInUp 0.8s ease;
}

.hero-logo {
  height: 160px;
  width: auto;
  margin-bottom: var(--spacing-xs);
  animation: fadeInUp 1s ease 0.2s backwards;
}

.hero-description {
  font-size: var(--font-size-lg);
  color: var(--color-text-muted);
  max-width: 700px;
  margin: 0 auto;
  animation: fadeInUp 1.2s ease 0.4s backwards;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ========== Section Styles ========== */
.section {
  padding: var(--spacing-3xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.section-title {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--spacing-sm);
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: var(--gradient-accent);
  border-radius: var(--radius-full);
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: var(--spacing-md) auto 0;
}

/* ========== Material Cards ========== */
.materials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-2xl);
}

.material-card {
  background: var(--color-bg-glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  transition: all var(--transition-slow);
  position: relative;
  overflow: hidden;
}

.material-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-slow);
}

.material-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl), var(--shadow-glow);
  border-color: rgba(74, 124, 89, 0.3);
}

.material-card:hover::before {
  transform: scaleX(1);
}

.material-number {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  color: var(--color-accent);
  opacity: 0.3;
  line-height: 1;
  margin-bottom: var(--spacing-sm);
}

.material-header {
  margin-bottom: var(--spacing-md);
}

.material-name {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-xs);
  color: var(--color-gold);
}

.material-type {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.material-badges {
  display: flex;
  gap: var(--spacing-sm);
  margin: var(--spacing-md) 0;
  flex-wrap: wrap;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge img {
  width: 16px;
  height: 16px;
}

.badge-waterproof {
  background: rgba(33, 150, 243, 0.15);
  color: var(--color-waterproof);
  border: 1px solid rgba(33, 150, 243, 0.3);
}

.badge-termite {
  background: rgba(255, 152, 0, 0.15);
  color: var(--color-termite);
  border: 1px solid rgba(255, 152, 0, 0.3);
}

.badge-fire {
  background: rgba(244, 67, 54, 0.15);
  color: var(--color-fire);
  border: 1px solid rgba(244, 67, 54, 0.3);
}

.material-description {
  margin: var(--spacing-md) 0;
}

.material-description h4 {
  font-size: var(--font-size-base);
  color: var(--color-accent);
  margin-bottom: var(--spacing-xs);
  margin-top: var(--spacing-md);
}

.material-description p {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--spacing-sm);
}

.advantage-list {
  list-style: none;
  margin: var(--spacing-md) 0;
}

.advantage-list li {
  padding: var(--spacing-xs) 0;
  padding-left: var(--spacing-md);
  position: relative;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

.advantage-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}

/* ========== Premium Surfaces Slider ========== */
.surfaces-section {
  background: var(--color-bg-secondary);
}

.surfaces-slider {
  position: relative;
  max-width: 1000px;
  margin: 0 auto;
  padding: var(--spacing-lg);
}

.slider-wrapper {
  overflow: hidden;
  border-radius: var(--radius-xl);
}

.slider-track {
  display: flex;
  transition: transform var(--transition-slow);
}

.surface-slide {
  min-width: 100%;
  padding: var(--spacing-xl);
  background: var(--color-bg-glass);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.surface-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.surface-brand {
  font-size: var(--font-size-3xl);
  color: var(--color-gold);
}

.surface-tagline {
  font-size: var(--font-size-lg);
  color: var(--color-accent);
  font-style: italic;
}

.surface-content p {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-sm);
}

.surface-content strong {
  color: var(--color-text-primary);
}

.slider-controls {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.slider-btn {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  border: none;
  background: var(--gradient-accent);
  color: white;
  font-size: var(--font-size-xl);
  cursor: pointer;
  transition: all var(--transition-base);
  display: flex;
  align-items: center;
  justify-content: center;
}

.slider-btn:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-glow);
}

.slider-dots {
  display: flex;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.2);
  cursor: pointer;
  transition: all var(--transition-base);
}

.dot.active {
  background: var(--color-accent);
  width: 32px;
}

/* ========== Hardware Comparison ========== */
.hardware-section {
  background: var(--gradient-hero);
}

.comparison-toggle {
  display: flex;
  justify-content: center;
  margin-bottom: var(--spacing-2xl);
}

.toggle-container {
  display: inline-flex;
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-full);
  padding: var(--spacing-xs);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.toggle-btn {
  padding: var(--spacing-sm) var(--spacing-xl);
  border: none;
  background: transparent;
  color: var(--color-text-secondary);
  font-size: var(--font-size-base);
  font-weight: 600;
  cursor: pointer;
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.toggle-btn.active {
  background: var(--gradient-accent);
  color: white;
  box-shadow: var(--shadow-md);
}

.comparison-content {
  max-width: 800px;
  margin: 0 auto;
}

.hardware-card {
  background: var(--color-bg-glass);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  display: none;
  animation: slideIn 0.5s ease;
}

.hardware-card.active {
  display: block;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.hardware-title {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.hardware-title h3 {
  font-size: var(--font-size-3xl);
  margin: 0;
}

.flag {
  font-size: var(--font-size-2xl);
}

.tier-badge {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: var(--spacing-md);
}

.tier-standard {
  background: linear-gradient(135deg, #FFD700, #FFA500);
  color: #000;
}

.tier-luxury {
  background: linear-gradient(135deg, #C0C0C0, #E8E8E8);
  color: #000;
}

/* ========== Modal/Popup ========== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(8px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  animation: fadeIn 0.3s ease;
}

.modal-overlay.active {
  display: flex;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

.modal {
  background: var(--color-bg-secondary);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  max-width: 1000px;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  animation: scaleIn 0.3s ease;
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }

  to {
    opacity: 1;
    transform: scale(1);
  }
}

.modal-close {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  width: 40px;
  height: 40px;
  border: none;
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-text-primary);
  font-size: var(--font-size-2xl);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-base);
}

.modal-close:hover {
  background: rgba(244, 67, 54, 0.2);
  color: var(--color-fire);
  transform: rotate(90deg);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: var(--spacing-lg);
}

.comparison-table th,
.comparison-table td {
  padding: var(--spacing-md);
  text-align: left;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.comparison-table th {
  font-weight: 700;
  color: var(--color-gold);
  background: rgba(212, 165, 116, 0.1);
}

.comparison-table tr:hover {
  background: rgba(255, 255, 255, 0.02);
}

/* ========== CTA Section ========== */
.cta-section {
  background: var(--gradient-accent);
  text-align: center;
  padding: var(--spacing-3xl) var(--spacing-md);
}

.cta-content {
  max-width: 700px;
  margin: 0 auto;
}

.cta-section h2 {
  color: white;
  margin-bottom: var(--spacing-md);
}

.cta-section p {
  font-size: var(--font-size-lg);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--spacing-xl);
}

.btn-primary {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-xl);
  background: white;
  color: var(--color-primary);
  font-size: var(--font-size-lg);
  font-weight: 700;
  border-radius: var(--radius-lg);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-lg);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

/* ========== Contact Page ========== */
.contact-grid {
  display: flex;
  justify-content: center;
  max-width: 600px;
  margin: var(--spacing-lg) auto 0;
}

.contact-card {
  width: 100%;
  background: var(--color-bg-glass);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
}

.contact-card h3 {
  color: var(--color-gold);
  margin-bottom: var(--spacing-md);
}

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

.contact-form label {
  display: block;
  margin-bottom: var(--spacing-xs);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: var(--spacing-sm);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-family: var(--font-body);
  transition: all var(--transition-base);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  background: rgba(255, 255, 255, 0.1);
}

/* Fix for browser autofill white background */
.contact-form input:-webkit-autofill,
.contact-form input:-webkit-autofill:hover,
.contact-form input:-webkit-autofill:focus,
.contact-form textarea:-webkit-autofill,
.contact-form textarea:-webkit-autofill:hover,
.contact-form textarea:-webkit-autofill:focus {
  -webkit-text-fill-color: var(--color-text-primary);
  -webkit-box-shadow: 0 0 0px 1000px #1a1f2e inset;
  transition: background-color 5000s ease-in-out 0s;
}

.whatsapp-card {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
}

.btn-whatsapp {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  background: #25D366;
  color: white;
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: var(--radius-lg);
  font-weight: 700;
  font-size: var(--font-size-lg);
  transition: all var(--transition-base);
  box-shadow: 0 4px 15px rgba(37, 211, 102, 0.3);
}

.btn-whatsapp:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(37, 211, 102, 0.4);
}

/* ========== Catalogues Page ========== */
.catalogues-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-lg);
}

.catalogue-card {
  background: var(--color-bg-glass);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  text-align: center;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

.catalogue-icon {
  color: var(--color-gold);
  margin-bottom: var(--spacing-md);
  opacity: 0.8;
}

.catalogue-card h3 {
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xs);
  font-size: var(--font-size-lg);
}

.catalogue-card p {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-lg);
}

/* ========== Footer ========== */
.footer {
  background: var(--color-primary);
  padding: var(--spacing-lg) 0;
  text-align: center;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* ========== Responsive Design ========== */
@media (max-width: 768px) {
  .hero h1 {
    font-size: var(--font-size-4xl);
  }

  .hero-subtitle {
    font-size: var(--font-size-xl);
  }

  .section-title {
    font-size: var(--font-size-3xl);
  }

  .materials-grid {
    grid-template-columns: 1fr;
  }

  .mobile-toggle {
    display: block;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 10001;
    padding: var(--spacing-xs);
  }

  .bar {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--color-text-primary);
    margin: 5px auto;
    transition: all 0.3s ease-in-out;
  }

  /* Hamburger Animation */
  .mobile-toggle.active .bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
    background-color: var(--color-gold);
  }

  .mobile-toggle.active .bar:nth-child(2) {
    opacity: 0;
  }

  .mobile-toggle.active .bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
    background-color: var(--color-gold);
  }

  .nav-links {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: #0f1419;
    /* Solid fallback */
    background: rgba(15, 20, 25, 0.98);
    /* High opacity */
    backdrop-filter: blur(10px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-xl);
    transform: translateX(100%);
    transition: transform 0.3s ease-in-out;
    z-index: 10000;
  }

  .nav-links.active {
    transform: translateX(0);
  }

  .nav-links a {
    font-size: var(--font-size-xl);
    font-weight: 600;
  }

  .modal {
    margin: var(--spacing-md);
    max-width: calc(100% - var(--spacing-lg));
  }

  .comparison-table {
    font-size: var(--font-size-sm);
  }

  .comparison-table th,
  .comparison-table td {
    padding: var(--spacing-sm);
  }
}

/* ========== Utility Classes ========== */
.text-center {
  text-align: center;
}

.mt-lg {
  margin-top: var(--spacing-lg);
}

.mb-lg {
  margin-bottom: var(--spacing-lg);
}