:root {
  --primary-color: #6366f1;
  --secondary-color: #4f46e5;
  --text-color: #1f2937;
  --light-gray: #f3f4f6;
  --border-color: #e5e7eb;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

body {
  color: var(--text-color);
  line-height: 1.6;
}

.header {
  background-color: white;
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 2rem;
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 100;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
  text-decoration: none;
}

.search-container {
  flex: 1;
  max-width: 600px;
  margin: 0 2rem;
}

.search-box {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 1rem;
  background-color: var(--light-gray);
}

.nav-links a {
  margin-left: 1.5rem;
  text-decoration: none;
  color: var(--text-color);
}

.nav-links .contact-btn {
  background-color: var(--primary-color);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: 6px;
}

.main-container {
  margin-top: 80px;
  padding: 2rem;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

.hero {
  text-align: center;
  padding: 4rem 0;
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.hero p {
  color: #4b5563;
  font-size: 1.25rem;
  max-width: 600px;
  margin: 0 auto;
}

.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.category-card {
  background: white;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
  transition: transform 0.2s, box-shadow 0.2s;
}

.category-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.category-icon {
  background-color: var(--light-gray);
  width: 48px;
  height: 48px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}

.category-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.category-card p {
  color: #6b7280;
  font-size: 0.875rem;
}

.footer {
  background-color: var(--light-gray);
  padding: 4rem 2rem;
  margin-top: 4rem;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
}

.footer-section h4 {
  font-size: 1rem;
  margin-bottom: 1rem;
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: 0.5rem;
}

.footer-section ul li a {
  color: #4b5563;
  text-decoration: none;
  font-size: 0.875rem;
}

@media (max-width: 768px) {
  .search-container {
    margin: 0 1rem;
  }
  
  .nav-links {
    display: none;
  }
  
  .hero {
    padding: 2rem 0;
  }
  
  .hero h1 {
    font-size: 2rem;
  }
}