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

html {
  font-size: 16px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif;
  background-color: #f8fafc;
  color: #1f2933;
  line-height: 1.6;
}

.hero {
  background-color: #1f2933;
  color: #f8fafc;
  padding: 6rem 2rem;
  text-align: center;
  max-width: 960px;
  margin: 0 auto;
}

.hero h1 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.tagline {
  font-size: 1.25rem;
  font-weight: 400;
  margin-bottom: 2rem;
  opacity: 0.9;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta {
  display: inline-block;
  background-color: #2563eb;
  color: #f8fafc;
  padding: 0.875rem 2rem;
  border-radius: 0.375rem;
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  transition: background-color 0.2s ease;
}

.cta:hover {
  background-color: #1d4ed8;
}

.features {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  max-width: 960px;
  margin: 4rem auto;
  padding: 0 2rem;
  justify-content: center;
}

.feature {
  flex: 1;
  min-width: 280px;
  max-width: 300px;
  background-color: #ffffff;
  border-radius: 0.5rem;
  padding: 2rem;
  box-shadow: 0 1px 3px rgba(31, 41, 51, 0.1);
  transition: box-shadow 0.2s ease;
}

.feature:hover {
  box-shadow: 0 4px 6px rgba(31, 41, 51, 0.15);
}

.feature h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: #2563eb;
}

.feature p {
  font-size: 0.95rem;
  line-height: 1.7;
  color: #475569;
}

@media (max-width: 768px) {
  .hero h1 {
    font-size: 2rem;
  }

  .tagline {
    font-size: 1.1rem;
  }

  .features {
    flex-direction: column;
    align-items: center;
  }

  .feature {
    min-width: auto;
    width: 100%;
    max-width: 500px;
  }
}