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

:root {
  --primary-color: #2563eb;
  --secondary-color: #1e40af;
  --accent-color: #3b82f6;
  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --text-light: #9ca3af;
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-accent: #f1f5f9;
  --border-color: #e5e7eb;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Hero Section */
.hero {
  background: var(--gradient-primary);
  color: white;
  padding: 4rem 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  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>') center/cover;
  opacity: 0.3;
}

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

.company-logo h1 {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  background: linear-gradient(45deg, #ffffff, #e0e7ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.25rem;
  opacity: 0.9;
  font-weight: 300;
}

/* Company Summary */
.company-summary {
  padding: 5rem 0;
  background: var(--bg-secondary);
}

.company-summary h2 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 2rem;
  color: var(--text-primary);
}

.summary-text {
  font-size: 1.125rem;
  line-height: 1.8;
  color: var(--text-secondary);
  text-align: center;
  max-width: 800px;
  margin: 0 auto 3rem;
}

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.stat-item {
  text-align: center;
  padding: 2rem;
  background: white;
  border-radius: 1rem;
  box-shadow: var(--shadow-md);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.stat-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.stat-number {
  display: block;
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.stat-label {
  color: var(--text-secondary);
  font-weight: 500;
}

/* Products Section */
.products {
  padding: 5rem 0;
}

.products h2 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 3rem;
  color: var(--text-primary);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
}

.product-card {
  position: relative;
  background: white;
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
  cursor: pointer;
  height: 250px;
}

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

.card-content {
  padding: 2rem;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  text-align: center;
  transition: opacity 0.3s ease;
}

.card-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.card-content h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.card-preview {
  color: var(--text-secondary);
  font-size: 1rem;
}

.card-details {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: white;
  padding: 2rem;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.3s ease;
  overflow-y: auto;
}

.product-card:hover .card-details {
  opacity: 1;
  transform: translateY(0);
}

.product-card:hover .card-content {
  opacity: 0;
}

.card-details h4 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: white;
}

.card-details p {
  margin-bottom: 1rem;
  opacity: 0.9;
  line-height: 1.6;
}

.card-details ul {
  list-style: none;
  margin-bottom: 1.5rem;
}

.card-details li {
  padding: 0.25rem 0;
  position: relative;
  padding-left: 1.5rem;
}

.card-details li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: #10b981;
  font-weight: bold;
}

.tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tech-tag {
  background: rgba(255, 255, 255, 0.2);
  padding: 0.25rem 0.75rem;
  border-radius: 1rem;
  font-size: 0.875rem;
  font-weight: 500;
}

/* WhatsApp Button */
.whatsapp-button {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: #25d366;
  color: white;
  padding: 1rem 1.5rem;
  border-radius: 50px;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  transition: all 0.3s ease;
  z-index: 1000;
  font-weight: 600;
}

.whatsapp-button:hover {
  background: #128c7e;
  transform: scale(1.05);
  box-shadow: var(--shadow-xl);
}

.whatsapp-icon {
  font-size: 1.5rem;
}

/* Contact Section */
.contact {
  background: var(--bg-accent);
  padding: 5rem 0;
}

.contact h2 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 3rem;
  color: var(--text-primary);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.contact-item {
  background: white;
  padding: 2rem;
  border-radius: 1rem;
  text-align: center;
  box-shadow: var(--shadow-md);
  transition: transform 0.3s ease;
}

.contact-item:hover {
  transform: translateY(-5px);
}

.contact-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.contact-item h3 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.contact-item p {
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

/* Responsive Design */
@media (max-width: 768px) {
  .container {
    padding: 0 1rem;
  }
  
  .company-logo h1 {
    font-size: 2.5rem;
  }
  
  .hero-subtitle {
    font-size: 1rem;
  }
  
  .products-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .product-card {
    height: 200px;
  }
  
  .card-details {
    padding: 1.5rem;
  }
  
  .stats {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .whatsapp-button {
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
  }
  
  .whatsapp-button span {
    display: none;
  }
  
  .whatsapp-icon {
    font-size: 1.75rem;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 2rem 0;
  }
  
  .company-summary,
  .products,
  .contact {
    padding: 3rem 0;
  }
  
  .summary-text {
    font-size: 1rem;
  }
  
  .product-card {
    height: 180px;
  }
  
  .card-content {
    padding: 1.5rem;
  }
  
  .card-details {
    padding: 1rem;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

/* Smooth scrolling */
html {
  scroll-behavior: smooth;
}

/* Loading animation for cards */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.product-card {
  animation: fadeInUp 0.6s ease forwards;
}

.product-card:nth-child(1) { animation-delay: 0.1s; }
.product-card:nth-child(2) { animation-delay: 0.2s; }
.product-card:nth-child(3) { animation-delay: 0.3s; }
.product-card:nth-child(4) { animation-delay: 0.4s; }
.product-card:nth-child(5) { animation-delay: 0.5s; }
.product-card:nth-child(6) { animation-delay: 0.6s; }