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

html, body {
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

.hero-content {
  text-align: center;
  color: #ffffff;
}

.greeting {
  font-size: clamp(2.5rem, 8vw, 5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.subtitle {
  font-size: clamp(1rem, 3vw, 1.5rem);
  font-weight: 400;
  opacity: 0.85;
}