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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  color: #333;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
}

.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 20px;
}

.hero {
  text-align: center;
  padding: 60px 20px 40px;
  color: white;
}

.logo {
  font-size: 3rem;
  margin-bottom: 10px;
  font-weight: 700;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.tagline {
  font-size: 1.5rem;
  font-weight: 300;
  opacity: 0.95;
}

.content {
  background: white;
  border-radius: 20px;
  padding: 40px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
  margin-bottom: 40px;
}

.description {
  text-align: center;
  margin-bottom: 50px;
}

.description h2 {
  font-size: 2rem;
  margin-bottom: 20px;
  color: #667eea;
}

.description p {
  font-size: 1.1rem;
  color: #666;
  line-height: 1.8;
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 30px;
  margin-bottom: 50px;
}

.feature {
  text-align: center;
  padding: 20px;
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: 15px;
}

.feature h3 {
  font-size: 1.3rem;
  margin-bottom: 10px;
  color: #333;
}

.feature p {
  color: #666;
  font-size: 0.95rem;
}

.cta {
  text-align: center;
  padding: 20px 0;
}

.button {
  display: inline-block;
  padding: 18px 50px;
  font-size: 1.2rem;
  font-weight: 600;
  color: white;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border: none;
  border-radius: 50px;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

.button:active {
  transform: translateY(0);
}

.note {
  margin-top: 15px;
  font-size: 0.9rem;
  color: #999;
  font-style: italic;
}

.footer {
  text-align: center;
  padding: 20px;
  color: white;
  opacity: 0.8;
}

@media (max-width: 600px) {
  .logo {
    font-size: 2.5rem;
  }

  .tagline {
    font-size: 1.2rem;
  }

  .content {
    padding: 30px 20px;
  }

  .description h2 {
    font-size: 1.5rem;
  }

  .features {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .button {
    padding: 15px 40px;
    font-size: 1.1rem;
  }
}