/* Import a clean sans-serif font */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;700&display=swap');

/* Reset + base styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: 'Montserrat', sans-serif;
  color: #fff;
  background: #f5f7fa;
  overflow-x: hidden;
}

/* Hero section */
.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
  text-align: center;
  padding: 0 1rem;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}
.hero h1 {
  font-size: 4rem;
  margin-bottom: 0.5rem;
}
.hero h2 {
  font-size: 1.75rem;
  margin-bottom: 1rem;
  font-weight: 400;
}
.hero p {
  font-size: 1.25rem;
  margin-bottom: 2rem;
}
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  text-decoration: none;
  border: 2px solid #fff;
  border-radius: 4px;
  transition: background 0.3s, color 0.3s;
}
.btn:hover {
  background: #fff;
  color: #667eea;
}

/* Wave graphic */
.wave {
  display: block;
  width: 100%;
  margin-top: -5px; /* overlap hero */
}