/* ===== CSS VARIABLES ===== */
:root {
  /* Colors */
  --primary-color: #0a3d62;
  --primary-light: #3c6382;
  --primary-dark: #082a47;
  --secondary-color: #00d2d3;
  --accent-color: #ff6b6b;
  --success-color: #28a745;
  --warning-color: #ffc107;
  --danger-color: #dc3545;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #0a3d62 0%, #3c6382 100%);
  --gradient-secondary: linear-gradient(135deg, #00d2d3 0%, #0fb9b1 100%);
  --gradient-accent: linear-gradient(135deg, #ff6b6b 0%, #ee5a52 100%);
  --gradient-rainbow: linear-gradient(45deg, #ff6b6b, #4ecdc4, #45b7d1, #96ceb4, #feca57, #ff9ff3);
  
  /* Background Colors */
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-dark: #1a202c;
  --bg-overlay: rgba(0, 0, 0, 0.8);
  
  /* Text Colors */
  --text-primary: #2d3748;
  --text-secondary: #4a5568;
  --text-muted: #718096;
  --text-light: #ffffff;
  
  /* Fonts */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-secondary: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  /* Font Sizes */
  --fs-xs: 0.75rem;
  --fs-sm: 0.875rem;
  --fs-base: 1rem;
  --fs-lg: 1.125rem;
  --fs-xl: 1.25rem;
  --fs-2xl: 1.5rem;
  --fs-3xl: 1.875rem;
  --fs-4xl: 2.25rem;
  --fs-5xl: 3rem;
  --fs-6xl: 3.75rem;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* 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), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  
  /* Transitions */
  --transition-fast: 0.15s ease-in-out;
  --transition-normal: 0.3s ease-in-out;
  --transition-slow: 0.5s ease-in-out;
  
  /* Z-index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal: 1040;
  --z-popover: 1050;
  --z-tooltip: 1060;
}

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

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

body {
  font-family: var(--font-primary);
  font-size: var(--fs-base);
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===== LOADING SCREEN ===== */
.loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-primary);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  opacity: 1;
  visibility: visible;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loading-screen.hidden {
  opacity: 0;
  visibility: hidden;
}

.loading-content {
  text-align: center;
  color: var(--text-light);
}

.loading-logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: var(--spacing-xl);
}

.loading-logo i {
  font-size: var(--fs-6xl);
  margin-bottom: var(--spacing-md);
  animation: pulse 2s infinite;
}

.loading-logo h1 {
  font-family: var(--font-secondary);
  font-size: var(--fs-4xl);
  font-weight: 700;
  margin: 0;
}

.loading-spinner {
  width: 50px;
  height: 50px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-top: 3px solid var(--text-light);
  border-radius: 50%;
  margin: var(--spacing-xl) auto;
  animation: spin 1s linear infinite;
}

.loading-content p {
  font-size: var(--fs-lg);
  opacity: 0.9;
}

/* ===== BACKGROUND ANIMATION ===== */
.background-animation {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: -1;
  overflow: hidden;
}

.floating-shapes {
  position: relative;
  width: 100%;
  height: 100%;
}

.shape {
  position: absolute;
  border-radius: 50%;
  background: linear-gradient(45deg, rgba(10, 61, 98, 0.1), rgba(60, 99, 130, 0.1));
  animation: float 20s infinite linear;
}

.shape-1 {
  width: 80px;
  height: 80px;
  top: 20%;
  left: 10%;
  animation-delay: 0s;
}

.shape-2 {
  width: 120px;
  height: 120px;
  top: 60%;
  left: 80%;
  animation-delay: -5s;
}

.shape-3 {
  width: 60px;
  height: 60px;
  top: 80%;
  left: 20%;
  animation-delay: -10s;
}

.shape-4 {
  width: 100px;
  height: 100px;
  top: 30%;
  left: 70%;
  animation-delay: -15s;
}

.shape-5 {
  width: 90px;
  height: 90px;
  top: 10%;
  left: 50%;
  animation-delay: -7s;
}

/* ===== HEADER ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  z-index: var(--z-fixed);
  transition: all var(--transition-normal);
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-lg);
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  position: relative;
  cursor: pointer;
  text-decoration: none;
  color: var(--primary-color);
}

.logo-icon {
  font-size: var(--fs-2xl);
  color: var(--primary-color);
  animation: rotate 10s linear infinite;
}

.logo-text {
  font-family: var(--font-secondary);
  font-size: var(--fs-xl);
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.logo-pulse {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 40px;
  height: 40px;
  border: 2px solid var(--primary-color);
  border-radius: 50%;
  opacity: 0;
  animation: pulse-ring 2s infinite;
}

.navigation {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
  margin: 0;
  padding: 0;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.nav-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--gradient-primary);
  transition: left var(--transition-normal);
  z-index: -1;
}

.nav-link:hover::before {
  left: 0;
}

.nav-link:hover {
  color: var(--text-light);
  transform: translateY(-2px);
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
}

.hamburger-line {
  width: 25px;
  height: 3px;
  background: var(--primary-color);
  border-radius: var(--radius-sm);
  transition: all var(--transition-normal);
}

/* ===== MAIN CONTENT ===== */
.main-content {
  margin-top: 70px;
}

/* ===== HERO SECTION ===== */
.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--gradient-primary);
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
  opacity: 0.3;
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  position: relative;
  z-index: 1;
}

.hero-content {
  text-align: center;
  color: var(--text-light);
}

.hero-title {
  font-family: var(--font-secondary);
  font-size: clamp(var(--fs-4xl), 8vw, var(--fs-6xl));
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: var(--spacing-xl);
  opacity: 0;
  animation: slideUp 1s ease-out 0.5s forwards;
}

.title-line {
  display: block;
  position: relative;
}

.title-line.highlight {
  background: var(--gradient-rainbow);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: rainbow 3s ease-in-out infinite;
}

.hero-description {
  font-size: var(--fs-xl);
  max-width: 600px;
  margin: 0 auto var(--spacing-2xl);
  opacity: 0.9;
  line-height: 1.6;
  opacity: 0;
  animation: slideUp 1s ease-out 0.7s forwards;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: var(--spacing-2xl);
  margin-top: var(--spacing-3xl);
  opacity: 0;
  animation: slideUp 1s ease-out 0.9s forwards;
}

.stat-item {
  text-align: center;
}

.stat-number {
  display: block;
  font-family: var(--font-secondary);
  font-size: var(--fs-3xl);
  font-weight: 700;
  color: var(--secondary-color);
}

.stat-label {
  font-size: var(--fs-sm);
  opacity: 0.8;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ===== SERVICES SECTION ===== */
.services-section {
  padding: var(--spacing-3xl) 0;
  background: var(--bg-secondary);
}

.services-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

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

.section-title {
  font-family: var(--font-secondary);
  font-size: var(--fs-4xl);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
  position: relative;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
}

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

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-2xl);
}

.service-card {
  background: var(--bg-secondary);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--transition-normal);
  z-index: 0;
}

.service-card:hover::before {
  opacity: 0.05;
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-2xl);
}

.service-card > * {
  position: relative;
  z-index: 1;
}

.service-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-lg);
  font-size: var(--fs-2xl);
  background: var(--gradient-primary);
  color: var(--text-light);
  transition: all var(--transition-normal);
}

.service-card:hover .service-icon {
  transform: scale(1.1) rotate(5deg);
}

.service-title {
  font-family: var(--font-secondary);
  font-size: var(--fs-xl);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.service-description {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
  line-height: 1.6;
}

.service-link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  background: var(--gradient-primary);
  color: var(--text-light);
  text-decoration: none;
  border-radius: var(--radius-full);
  font-weight: 500;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.service-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s ease;
}

.service-link:hover::before {
  left: 100%;
}

.service-link:hover {
  transform: translateX(5px);
  box-shadow: var(--shadow-lg);
}

.service-link.disabled {
  background: var(--text-muted);
  cursor: not-allowed;
  pointer-events: none;
}

.service-badge {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  background: var(--gradient-accent);
  color: var(--text-light);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-full);
  font-size: var(--fs-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.primary-service {
  border: 2px solid transparent;
  background-clip: padding-box;
}

.primary-service::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-primary);
  border-radius: var(--radius-xl);
  padding: 2px;
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask-composite: exclude;
  z-index: -1;
}

.secondary-service {
  opacity: 0.9;
}

.coming-soon {
  opacity: 0.6;
  filter: grayscale(0.3);
}

/* ===== ABOUT SECTION ===== */
.about-section {
  padding: var(--spacing-3xl) 0;
  background: var(--bg-primary);
}

.about-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
}

.about-description {
  font-size: var(--fs-lg);
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: var(--spacing-xl);
}

.about-features {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.feature-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--text-primary);
  font-weight: 500;
}

.feature-item i {
  color: var(--primary-color);
  font-size: var(--fs-lg);
}

.about-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.ai-visualization {
  width: 300px;
  height: 300px;
  position: relative;
}

.neural-network {
  width: 100%;
  height: 100%;
  position: relative;
}

.node {
  position: absolute;
  width: 20px;
  height: 20px;
  background: var(--gradient-primary);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

.node-1 {
  top: 20%;
  left: 20%;
  animation-delay: 0s;
}

.node-2 {
  top: 20%;
  right: 20%;
  animation-delay: 0.5s;
}

.node-3 {
  bottom: 20%;
  left: 20%;
  animation-delay: 1s;
}

.node-4 {
  bottom: 20%;
  right: 20%;
  animation-delay: 1.5s;
}

.connection {
  position: absolute;
  height: 2px;
  background: var(--gradient-secondary);
  opacity: 0.6;
  animation: flow 3s infinite;
}

.connection-1 {
  top: 25%;
  left: 25%;
  width: 50%;
  transform: rotate(0deg);
}

.connection-2 {
  top: 50%;
  left: 25%;
  width: 50%;
  transform: rotate(90deg);
}

.connection-3 {
  bottom: 25%;
  left: 25%;
  width: 50%;
  transform: rotate(45deg);
}

/* ===== FOOTER ===== */
.footer {
  background: var(--primary-dark);
  color: var(--text-light);
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-family: var(--font-secondary);
  font-size: var(--fs-xl);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
}

.footer-logo i {
  font-size: var(--fs-2xl);
  color: var(--secondary-color);
}

.footer-description {
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.6;
  margin-bottom: var(--spacing-lg);
}

.social-links {
  display: flex;
  gap: var(--spacing-md);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-light);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all var(--transition-normal);
}

.social-link:hover {
  background: var(--secondary-color);
  transform: translateY(-2px);
}

.footer-title {
  font-family: var(--font-secondary);
  font-size: var(--fs-lg);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  color: var(--secondary-color);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--spacing-sm);
}

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--secondary-color);
}

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

.copyright {
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--fs-sm);
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--fs-sm);
  color: var(--success-color);
}

.status-indicator i {
  font-size: var(--fs-xs);
  animation: pulse 2s infinite;
}

/* ===== BACK TO TOP BUTTON ===== */
.back-to-top {
  position: fixed;
  bottom: var(--spacing-xl);
  right: var(--spacing-xl);
  width: 50px;
  height: 50px;
  background: var(--gradient-primary);
  color: var(--text-light);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-lg);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-normal);
  z-index: var(--z-fixed);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

/* ===== ANIMATIONS ===== */
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.7;
    transform: scale(1.05);
  }
}

@keyframes pulse-ring {
  0% {
    opacity: 1;
    transform: translate(-50%, -50%) scale(0.8);
  }
  100% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(1.5);
  }
}

@keyframes rotate {
  to {
    transform: rotate(360deg);
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0) rotate(0deg);
  }
  25% {
    transform: translateY(-20px) rotate(90deg);
  }
  50% {
    transform: translateY(-10px) rotate(180deg);
  }
  75% {
    transform: translateY(-30px) rotate(270deg);
  }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@keyframes flow {
  0% {
    opacity: 0.3;
    transform: scaleX(0);
  }
  50% {
    opacity: 1;
    transform: scaleX(1);
  }
  100% {
    opacity: 0.3;
    transform: scaleX(0);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
  .header-container {
    padding: 0 var(--spacing-md);
  }
  
  .nav-list {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  .hero-stats {
    flex-direction: column;
    gap: var(--spacing-lg);
  }
  
  .services-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  .about-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    text-align: center;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  
  .back-to-top {
    bottom: var(--spacing-md);
    right: var(--spacing-md);
  }
}

@media (max-width: 480px) {
  .services-container,
  .about-container,
  .footer-container {
    padding: 0 var(--spacing-md);
  }
  
  .service-card {
    padding: var(--spacing-lg);
  }
  
  .hero-title {
    font-size: var(--fs-3xl);
  }
  
  .hero-description {
    font-size: var(--fs-base);
  }
}

/* ===== UTILITY CLASSES ===== */
.fade-in {
  animation: fadeInUp 0.6s ease-out forwards;
}

.fade-in-delay-1 {
  animation: fadeInUp 0.6s ease-out 0.2s forwards;
  opacity: 0;
}

.fade-in-delay-2 {
  animation: fadeInUp 0.6s ease-out 0.4s forwards;
  opacity: 0;
}

.fade-in-delay-3 {
  animation: fadeInUp 0.6s ease-out 0.6s forwards;
  opacity: 0;
}

/* ===== SCROLL ANIMATIONS ===== */
.scroll-reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease-out;
}

.scroll-reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ===== PERFORMANCE OPTIMIZATIONS ===== */
.service-card,
.nav-link,
.social-link,
.back-to-top {
  will-change: transform;
}

.floating-shapes .shape {
  will-change: transform;
}

/* ===== ACCESSIBILITY ===== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .floating-shapes {
    display: none;
  }
}

/* ===== PRINT STYLES ===== */
@media print {
  .header,
  .back-to-top,
  .loading-screen,
  .background-animation {
    display: none !important;
  }
  
  .main-content {
    margin-top: 0;
  }
  
  .service-card {
    break-inside: avoid;
  }
}