:root {
  --bg: #000;
  --text: #eaf1ff;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: "Space Grotesk", sans-serif;
  overflow-x: hidden;
}

.hero,
.outro {
  min-height: 90vh;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 4rem 1rem;
}

.eyebrow {
  letter-spacing: 0.35em;
  text-transform: uppercase;
  opacity: 0.7;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 7vw, 6rem);
  line-height: 1;
}

.scroll-stage {
  position: relative;
  height: 500vh;
}

.sticky-wrap {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: hidden;
}

.three-root {
  position: absolute;
  inset: 0;
}

.three-root canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.labels {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.label {
  position: absolute;
  opacity: 0;
  transform: translate(-50%, 16px);
  transition: opacity 180ms ease, transform 180ms ease;
  font-size: clamp(1rem, 1.7vw, 1.35rem);
  letter-spacing: 0.12em;
  text-transform: lowercase;
  text-shadow: 0 0 20px rgba(151, 208, 255, 0.45);
  white-space: nowrap;
  z-index: 10;
}

.label.show {
  opacity: 1;
  transform: translate(-50%, 0);
}

/* Mobile responsiveness - stack labels vertically on narrow screens */
@media (max-width: 768px) {
  .label {
    font-size: clamp(0.85rem, 4vw, 1.1rem);
    letter-spacing: 0.08em;
  }
  
  /* Prevent overlapping by adjusting positioning */
  #label-v {
    transform: translate(-50%, -40px);
  }
  
  #label-v.show {
    transform: translate(-50%, -24px);
  }
  
  #label-z {
    transform: translate(-50%, 16px);
  }
  
  #label-z.show {
    transform: translate(-50%, 0);
  }
  
  #label-n {
    transform: translate(-50%, 56px);
  }
  
  #label-n.show {
    transform: translate(-50%, 40px);
  }
}

@media (max-width: 480px) {
  .label {
    font-size: clamp(0.75rem, 5vw, 1rem);
    letter-spacing: 0.06em;
  }
  
  /* More vertical spacing for very narrow screens */
  #label-v {
    transform: translate(-50%, -60px);
  }
  
  #label-v.show {
    transform: translate(-50%, -44px);
  }
  
  #label-z {
    transform: translate(-50%, 16px);
  }
  
  #label-z.show {
    transform: translate(-50%, 0);
  }
  
  #label-n {
    transform: translate(-50%, 76px);
  }
  
  #label-n.show {
    transform: translate(-50%, 60px);
  }
}

.outro p {
  letter-spacing: 0.35em;
  opacity: 0.45;
}