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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  color: #2d3748;
  background: #ffffff;
}

main {
  max-width: 1000px;
  margin: 0 auto;
  padding: 4rem 2rem;
}

.hero {
  text-align: center;
  margin-bottom: 5rem;
  padding: 2rem 0;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 700;
  margin: 0 0 1rem 0;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.tagline {
  font-size: 1.25rem;
  color: #718096;
  margin: 0;
  font-weight: 300;
}

.intro {
  text-align: center;
  margin-bottom: 4rem;
  padding: 0 2rem;
}

.intro p {
  font-size: 1.125rem;
  color: #4a5568;
  line-height: 1.8;
  max-width: 700px;
  margin: 0 auto;
}

h2 {
  font-size: 2rem;
  font-weight: 600;
  margin: 0 0 2rem 0;
  color: #1a202c;
}

section {
  margin-bottom: 5rem;
}

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

.project-card {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  padding: 2rem;
  text-decoration: none;
  color: inherit;
  transition: all 0.3s ease;
  position: relative;
  display: block;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
  border-color: #667eea;
}

.project-card h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0 0 0.75rem 0;
  color: #1a202c;
}

.project-card p {
  margin: 0 0 1rem 0;
  color: #4a5568;
  line-height: 1.6;
}

.link-arrow {
  color: #667eea;
  font-size: 1.5rem;
  font-weight: 600;
  display: inline-block;
  transition: transform 0.3s ease;
}

.project-card:hover .link-arrow {
  transform: translateX(4px);
}

footer {
  text-align: center;
  padding: 2rem 0;
  color: #a0aec0;
  font-size: 0.875rem;
  border-top: 1px solid #e2e8f0;
  margin-top: 4rem;
}

@media (max-width: 768px) {
  main {
    padding: 2rem 1rem;
  }

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

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

  .intro {
    padding: 0 1rem;
  }

  .intro p {
    font-size: 1rem;
  }
}