* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

body {
  background: #000;
  color: #fff;
}

header {
  position: fixed;
  top: 0;
  width: 100%;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: transparent;
  transition: background 0.3s ease;
  z-index: 1000;
}

header.scrolled {
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(10px);
}

.logo {
  height: 40px;
}

nav a {
  color: white;
  text-decoration: none;
  margin-left: 1.5rem;
  font-weight: 500;
}

.hero {
  height: 100vh;
  background: linear-gradient(120deg, #ff8fb1, #7aa2ff);
  position: relative;
  display: flex;
  align-items: center;
  padding: 3rem;
}

.overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.55);
}

.content {
  position: relative;
  max-width: 600px;
}

h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
}

p {
  opacity: 0.8;
  margin-bottom: 2rem;
}

.buttons {
  display: flex;
  gap: 1rem;
}

.btn {
  padding: 0.8rem 1.8rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
}

.primary {
  background: linear-gradient(135deg, #ff9dbf, #8ab1ff);
  color: black;
}

.secondary {
  border: 1px solid white;
  color: white;
}

.section {
  padding: 6rem 3rem;
}