* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: #1a1a2e;
  background: #ffffff;
}

.nav {
  border-bottom: 1px solid #eaeaf0;
}

.nav-inner {
  max-width: 1000px;
  margin: 0 auto;
  padding: 1.25rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.nav-cta {
  color: #4338ca;
  text-decoration: none;
  font-weight: 600;
}

.hero {
  max-width: 700px;
  margin: 0 auto;
  padding: 5rem 1.5rem 4rem;
  text-align: center;
}

.hero h1 {
  font-size: 2.75rem;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 1.25rem;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: #52526b;
  margin: 0 0 2.25rem;
  line-height: 1.5;
}

.cta-button {
  display: inline-block;
  background: #4338ca;
  color: #ffffff;
  text-decoration: none;
  font-weight: 600;
  font-size: 1.05rem;
  padding: 0.9rem 2rem;
  border-radius: 8px;
}

.features {
  max-width: 1000px;
  margin: 0 auto;
  padding: 2rem 1.5rem 5rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
}

.feature h2 {
  font-size: 1.15rem;
  margin: 0 0 0.5rem;
}

.feature p {
  color: #52526b;
  line-height: 1.5;
  margin: 0;
}

.footer {
  border-top: 1px solid #eaeaf0;
  text-align: center;
  padding: 2rem 1.5rem;
  color: #9494a8;
  font-size: 0.9rem;
}

@media (max-width: 640px) {
  .features {
    grid-template-columns: 1fr;
  }
  .hero h1 {
    font-size: 2.1rem;
  }
}