.hero-section {
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E") repeat;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 2rem;
  max-width: 48rem;
}

.hero-subtitle {
  opacity: 0.95;
}

.features-section {
  padding: 4rem 1rem;
  background-color: #f9fafb;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  max-width: 64rem;
  margin: 0 auto;
}

.github-button-wrapper {
  position: absolute;
  top: 10px;
  right: 10px;
}

.author-credit {
  position: fixed;
  bottom: 0;
  right: 0;
  background-color: #fff;
  color: #000;
  padding: 10px;
  border-top-left-radius: 5px;
  border: 1px solid #e0e0e0;
  font-size: 12px;
  font-weight: 700;
  text-align: center;
}

.author-credit a {
  color: #2563eb;
  text-decoration: none;
}

@media (prefers-color-scheme: dark) {
  .hero-section {
      background: linear-gradient(135deg, #4c1d95 0%, #5b21b6 100%);
  }
  
  .features-section {
      background-color: #111827;
  }

  .author-credit {
    background-color: #111827;
    color: #fff;
  }
}