/* ============================================
   Premium 2025 Design System
   ============================================ */

:root {
  /* Colors */
  --primary: #0097b2;
  --primary-dark: #007a8f;
  --primary-light: #33b5c8;
  --accent: #2f3a40;
  --accent-light: #4b5860;
  --gradient-primary: linear-gradient(135deg, #0097b2 0%, #2f3a40 100%);
  --gradient-secondary: linear-gradient(135deg, #2f3a40 0%, #0097b2 100%);
  
  --neutral-50: #f9fafb;
  --neutral-100: #f3f4f6;
  --neutral-200: #e5e7eb;
  --neutral-300: #d1d5db;
  --neutral-400: #9ca3af;
  --neutral-500: #6b7280;
  --neutral-600: #4b5563;
  --neutral-700: #374151;
  --neutral-800: #1f2937;
  --neutral-900: #111827;
  
  --success: #10b981;
  --error: #ef4444;
  --warning: #f59e0b;
  
  /* Typography */
  --font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', 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;
  --font-size-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;
  --spacing-4xl: 6rem;
  
  /* Border Radius */
  --radius-sm: 0.5rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
  --radius-xl: 2rem;
  --radius-2xl: 2.5rem;
  
  /* 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);
  
  /* Glassmorphism */
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(255, 255, 255, 0.18);
  --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 500ms ease;
}

/* ============================================
   Reset & Base Styles
   ============================================ */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--neutral-800);
  background-color: #ffffff;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

main {
  flex: 1;
  overflow-x: hidden;
}

/* Container width adjustments */
.container {
  max-width: 1200px;
}

@media (min-width: 1400px) {
  .container {
    max-width: 1320px;
  }
}

/* ============================================
   Typography
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--neutral-900);
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: var(--font-size-5xl);
  font-weight: 800;
  letter-spacing: -0.02em;
}

h2 {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  letter-spacing: -0.01em;
}

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

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

p {
  margin-bottom: var(--spacing-md);
  color: var(--neutral-600);
}

.lead {
  font-size: var(--font-size-xl);
  font-weight: 400;
  line-height: 1.7;
  color: var(--neutral-700);
}

/* ============================================
   Header & Navigation
   ============================================ */

.site-header {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--neutral-200);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: all var(--transition-base);
}

.site-header .navbar {
  padding: var(--spacing-lg) 0;
}

.navbar-brand {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: 0;
  text-decoration: none;
}

.navbar-brand .brand-logo {
  height: 55px;
  width: auto;
  display: block;
  transition: transform var(--transition-base);
}

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

.footer-brand {
  display: inline-flex;
  align-items: center;
  margin-bottom: var(--spacing-md);
}

.footer-brand .brand-logo {
  height: 40px;
  width: auto;
  display: block;
}

.nav-link {
  font-weight: 500;
  color: var(--neutral-700) !important;
  padding: var(--spacing-sm) var(--spacing-md) !important;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  position: relative;
}

.nav-link:hover {
  color: var(--primary) !important;
  background: var(--neutral-100);
}

.nav-link.active {
  color: var(--primary) !important;
  font-weight: 600;
  background: rgba(0, 151, 178, 0.12);
}

.navbar-toggler {
  border: none;
  padding: var(--spacing-sm);
}

.navbar-toggler:focus {
  box-shadow: 0 0 0 3px rgba(0, 151, 178, 0.2);
}

/* ============================================
   Buttons
   ============================================ */

.btn {
  font-weight: 600;
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  text-decoration: none;
  font-size: var(--font-size-base);
}

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

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

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

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

.btn-lg {
  padding: var(--spacing-lg) var(--spacing-2xl);
  font-size: var(--font-size-lg);
}

.btn:focus {
  outline: 3px solid rgba(0, 151, 178, 0.3);
  outline-offset: 2px;
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
  position: relative;
  padding: var(--spacing-4xl) 0;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(0, 151, 178, 0.08) 0%, rgba(47, 58, 64, 0.08) 100%);
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 151, 178, 0.15) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 20s ease-in-out infinite;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(47, 58, 64, 0.15) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 25s ease-in-out infinite reverse;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-icons {
  display: flex;
  justify-content: center;
  gap: var(--spacing-2xl);
  flex-wrap: wrap;
  margin-top: var(--spacing-2xl);
}

.hero-icon-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  transition: transform var(--transition-base);
}

.hero-icon-item:hover {
  transform: translateY(-4px);
}

.hero-icon {
  width: 80px;
  height: 80px;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-3xl);
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-base);
}

.hero-icon-item:hover .hero-icon {
  transform: scale(1.1);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-light);
}

.hero-icon-item span {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--neutral-700);
}

.hero-badge {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  background: rgba(0, 151, 178, 0.12);
  border-radius: var(--radius-2xl);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--spacing-lg);
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: var(--spacing-lg);
  background: linear-gradient(135deg, var(--neutral-900) 0%, var(--neutral-700) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero .lead {
  font-size: clamp(1.125rem, 2vw, 1.375rem);
  max-width: 600px;
  margin-bottom: var(--spacing-2xl);
}

.hero-cta {
  display: flex;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
}


/* ============================================
   Services Section
   ============================================ */

.services-section {
  padding: var(--spacing-4xl) 0;
  background: var(--neutral-50);
}

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

.section-title h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: var(--spacing-md);
}

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

.service-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  height: 100%;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-light);
}

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

.service-icon {
  width: 64px;
  height: 64px;
  background: var(--gradient-primary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-lg);
  font-size: var(--font-size-2xl);
  color: white;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-base);
}

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

.service-card h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-md);
  color: var(--neutral-900);
}

.service-card p {
  color: var(--neutral-600);
  line-height: 1.7;
}

/* ============================================
   Why Choose Us Section
   ============================================ */

.why-choose-us {
  padding: var(--spacing-4xl) 0;
  background: white;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-4xl);
}

.stat-item {
  text-align: center;
  padding: var(--spacing-xl);
}

.stat-number {
  font-size: clamp(3rem, 5vw, 4.5rem);
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: var(--spacing-sm);
  display: block;
}

.stat-label {
  font-size: var(--font-size-lg);
  color: var(--neutral-600);
  font-weight: 500;
}

.feature-card {
  background: white;
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  height: 100%;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-sm);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-light);
}

.feature-icon {
  width: 56px;
  height: 56px;
  background: rgba(0, 151, 178, 0.12);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-lg);
  font-size: var(--font-size-xl);
  color: var(--primary);
}

.feature-card h4 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-md);
}

.feature-card p {
  color: var(--neutral-600);
  margin: 0;
}

/* ============================================
   Portfolio Section
   ============================================ */

.portfolio-section {
  padding: var(--spacing-4xl) 0;
  background: var(--neutral-50);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--spacing-xl);
  max-width: 1200px;
  margin: 0 auto;
}

.portfolio-card {
  background: white;
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  border: 1px solid var(--neutral-200);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  height: 100%;
}

.portfolio-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-light);
}

.portfolio-card-icon {
  width: 100px;
  height: 100px;
  background: var(--gradient-primary);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-5xl);
  margin-bottom: var(--spacing-lg);
  box-shadow: var(--shadow-lg);
  transition: transform var(--transition-base);
}

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

.portfolio-card-content {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.portfolio-category {
  display: inline-block;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--spacing-md);
}

.portfolio-card-content h4 {
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-xl);
}

.portfolio-card-content h4 a {
  color: var(--neutral-900);
  text-decoration: none;
  transition: color var(--transition-base);
}

.portfolio-card-content h4 a:hover {
  color: var(--primary);
}

.portfolio-card-content p {
  color: var(--neutral-600);
  margin-bottom: var(--spacing-lg);
  flex: 1;
}

.portfolio-link {
  color: var(--primary);
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition-base);
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.portfolio-link:hover {
  gap: var(--spacing-sm);
  color: var(--primary-dark);
}

/* ============================================
   Testimonials Section
   ============================================ */

.testimonials-section {
  padding: var(--spacing-4xl) 0;
  background: white;
}

.testimonials-slider {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  overflow: hidden;
}

.testimonials-track {
  display: flex;
  transition: transform 0.5s ease;
}

.testimonial-card {
  min-width: 100%;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  box-shadow: var(--shadow-lg);
  text-align: center;
}

.testimonial-stars {
  display: flex;
  justify-content: center;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-lg);
  font-size: var(--font-size-xl);
  color: #fbbf24;
}

.testimonial-quote {
  font-size: var(--font-size-lg);
  line-height: 1.8;
  color: var(--neutral-700);
  font-style: italic;
  margin-bottom: var(--spacing-xl);
}

.testimonial-author {
  font-weight: 600;
  color: var(--neutral-900);
  margin-bottom: var(--spacing-xs);
}

.testimonial-company {
  color: var(--neutral-600);
  font-size: var(--font-size-sm);
}

.testimonials-nav {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-xl);
}

.testimonial-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--neutral-300);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  padding: 0;
}

.testimonial-dot.active {
  background: var(--primary);
  width: 32px;
  border-radius: 6px;
}

/* ============================================
   Pricing Section
   ============================================ */

.pricing-section {
  padding: var(--spacing-4xl) 0;
  background: var(--neutral-50);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  max-width: 1200px;
  margin: 0 auto;
}

.pricing-card {
  background: white;
  border: 2px solid var(--neutral-200);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  text-align: center;
  transition: all var(--transition-base);
  position: relative;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
}

.pricing-icon {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--spacing-md);
  display: block;
}

.pricing-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.pricing-card.featured {
  border-color: var(--primary);
  box-shadow: var(--shadow-xl);
  transform: scale(1.05);
}

.pricing-card.featured::before {
  content: 'Most Popular';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-primary);
  color: white;
  padding: var(--spacing-xs) var(--spacing-lg);
  border-radius: var(--radius-2xl);
  font-size: var(--font-size-sm);
  font-weight: 600;
}

.pricing-card h3 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-md);
}

.pricing-price {
  font-size: clamp(2.5rem, 4vw, 3.5rem);
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--spacing-lg);
}

.pricing-features {
  list-style: none;
  padding: 0;
  margin: var(--spacing-xl) 0;
  text-align: left;
}

.pricing-features li {
  padding: var(--spacing-md) 0;
  border-bottom: 1px solid var(--neutral-200);
  color: var(--neutral-700);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.pricing-features li::before {
  content: '✓';
  color: var(--success);
  font-weight: bold;
  font-size: var(--font-size-lg);
}

.pricing-features li:last-child {
  border-bottom: none;
}

/* ============================================
   Contact Section
   ============================================ */

.contact-section {
  padding: var(--spacing-4xl) 0;
  background: white;
}

.contact-form-wrapper {
  max-width: 700px;
  margin: 0 auto;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-3xl);
  box-shadow: var(--shadow-xl);
}

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

.form-label {
  display: block;
  font-weight: 600;
  color: var(--neutral-900);
  margin-bottom: var(--spacing-sm);
  font-size: var(--font-size-sm);
}

.form-control {
  width: 100%;
  padding: var(--spacing-md) var(--spacing-lg);
  border: 2px solid var(--neutral-200);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-base);
  font-family: var(--font-family);
  transition: all var(--transition-base);
  background: white;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0, 151, 178, 0.15);
}

.form-control:invalid:not(:focus):not(:placeholder-shown) {
  border-color: var(--error);
}

.form-control.is-valid {
  border-color: var(--success);
}

.form-control.is-invalid {
  border-color: var(--error);
}

.invalid-feedback {
  display: none;
  width: 100%;
  margin-top: var(--spacing-xs);
  font-size: var(--font-size-sm);
  color: var(--error);
}

.form-control.is-invalid ~ .invalid-feedback {
  display: block;
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

/* Success Modal */
.success-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 10000;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl);
}

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

.success-modal-content {
  background: white;
  border-radius: var(--radius-2xl);
  padding: var(--spacing-3xl);
  max-width: 500px;
  text-align: center;
  box-shadow: var(--shadow-2xl);
  animation: fadeInUp 0.3s ease-out;
}

.success-icon {
  width: 80px;
  height: 80px;
  background: var(--success);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-xl);
  font-size: var(--font-size-4xl);
  color: white;
}

/* ============================================
   Footer
   ============================================ */

.site-footer {
  background: var(--neutral-900);
  color: var(--neutral-300);
  padding: var(--spacing-4xl) 0 var(--spacing-xl);
  margin-top: var(--spacing-4xl);
}

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

.footer-section h5 {
  color: white;
  margin-bottom: var(--spacing-lg);
  font-size: var(--font-size-lg);
}

.footer-section p {
  color: var(--neutral-400);
  margin-bottom: var(--spacing-md);
}

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

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

.footer-links a {
  color: var(--neutral-400);
  text-decoration: none;
  transition: color var(--transition-base);
}

.footer-links a:hover {
  color: white;
}

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

.social-icon {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  text-decoration: none;
  transition: all var(--transition-base);
}

.social-icon:hover {
  background: var(--primary);
  transform: translateY(-2px);
  color: white;
}

.footer-bottom {
  border-top: 1px solid var(--neutral-800);
  padding-top: var(--spacing-xl);
  text-align: center;
  color: var(--neutral-500);
  font-size: var(--font-size-sm);
}

.footer-bottom a {
  color: var(--neutral-400);
  text-decoration: none;
}

.footer-bottom a:hover {
  color: white;
}

/* ============================================
   Animations
   ============================================ */

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

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0) translateX(0);
  }
  33% {
    transform: translateY(-30px) translateX(20px);
  }
  66% {
    transform: translateY(20px) translateX(-20px);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Scroll Animations */
.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   Utility Classes
   ============================================ */

.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 1024px) {
  .pricing-card.featured {
    transform: scale(1);
  }
  
  .portfolio-grid {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  }
}

@media (max-width: 768px) {
  :root {
    --spacing-4xl: 4rem;
    --spacing-3xl: 3rem;
  }
  
  h1 {
    font-size: var(--font-size-4xl);
  }
  
  h2 {
    font-size: var(--font-size-3xl);
  }
  
  .hero {
    padding: var(--spacing-3xl) 0;
  }
  
  .hero-content {
    text-align: center;
  }
  
  .hero-icons {
    gap: var(--spacing-lg);
  }
  
  .hero-icon {
    width: 60px;
    height: 60px;
    font-size: var(--font-size-2xl);
  }
  
  .hero-cta {
    flex-direction: column;
  }
  
  .hero-cta .btn {
    width: 100%;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
  }
  
  .portfolio-grid {
    grid-template-columns: 1fr;
  }
  
  .portfolio-card-icon {
    width: 80px;
    height: 80px;
    font-size: var(--font-size-4xl);
  }
  
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  
  .pricing-card.featured {
    order: -1;
  }
  
  .contact-form-wrapper {
    padding: var(--spacing-xl);
  }
  
  .footer-content {
    grid-template-columns: 1fr;
  }
  
  .testimonials-nav {
    flex-wrap: wrap;
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .service-card,
  .feature-card,
  .pricing-card {
    padding: var(--spacing-xl);
  }
  
  .hero-icons {
    gap: var(--spacing-md);
  }
  
  .hero-icon {
    width: 50px;
    height: 50px;
    font-size: var(--font-size-xl);
  }
  
  .hero-icon-item span {
    font-size: var(--font-size-xs);
  }
  
  .portfolio-card-icon {
    width: 70px;
    height: 70px;
    font-size: var(--font-size-3xl);
  }
}

/* ============================================
   Legacy Support
   ============================================ */

.grid-list li {
  margin-bottom: var(--spacing-md);
}

.prose {
  line-height: 1.7;
  font-size: var(--font-size-lg);
}

.prose p + p {
  margin-top: var(--spacing-md);
}

.filter-buttons .btn.active {
  color: white;
  background: var(--gradient-primary);
}

.card img {
  object-fit: cover;
  height: 240px;
}