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

body {
  font-family: system-ui, sans-serif;
  color: white;
}

.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
  text-align: center;
  gap: 1rem;
}

h1 {
  font-size: clamp(2rem, 8vw, 5rem);
  font-weight: 900;
  letter-spacing: -.02em;
  text-shadow: 0 2px 20px rgba(0, 0, 0, .5);
}

p {
  font-size: 1.1rem;
  opacity: .8;
  text-shadow: 0 1px 8px rgba(0, 0, 0, .5);
}

.controls {
  display: flex;
  gap: .5rem;
  margin-top: 1rem;
}

button {
  padding: .5rem 1.25rem;
  border: 2px solid rgba(255, 255, 255, .6);
  border-radius: 999px;
  background: rgba(255, 255, 255, .15);
  color: white;
  font-size: .9rem;
  cursor: pointer;
  backdrop-filter: blur(4px);
  transition: background .2s;
}

button:hover {
  background: rgba(255, 255, 255, .3);
}

.slide-info {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  font-size: .8rem;
  opacity: .6;
  letter-spacing: .05em;
}

.demo-section {
  color: white;
  text-align: center;
  position: absolute;
  top: 2em;
  left: 2em;
  width: 400px;
  aspect-ratio: 4 / 3;
}

#div-slideshow {
  position: relative;
  width: 100%;
  height: 100%;
}