*, *::before, *::after {
  box-sizing: border-box;
}

body {
  font-family: system-ui, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
  margin: 0;
  background: #000000;
  color: #ffffff;
}

.cinematic-wrapper {
  position: relative;
  /* Extra height to allow scrolling */
  height: 250vh;
}

.sticky-hero {
  position: sticky;
  top: 0;
  width: 100%;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
  z-index: 2;
  /* Fallback dark background that will fade */
  background: #000000;
}

.hero-text {
  font-size: clamp(4rem, 15vw, 12rem);
  font-weight: 900;
  letter-spacing: 10px;
  background: linear-gradient(to right, #ffffff, #94a3b8);
  color: transparent;
  background-clip: text;
  -webkit-background-clip: text;
  will-change: transform, filter, opacity;
  transform-origin: center center;
}

.content-reveal {
  position: absolute;
  top: 150vh;
  width: 100%;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
  z-index: 1;
}

.content-card {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 60px 40px;
  border-radius: 24px;
  max-width: 600px;
  text-align: center;
}

.content-card h2 {
  font-size: 2.5rem;
  margin: 0 0 20px 0;
  background: linear-gradient(to right, #3b82f6, #a855f7);
  color: transparent;
  background-clip: text;
  -webkit-background-clip: text;
}

.content-card p {
  font-size: 1.25rem;
  color: #cbd5e1;
  line-height: 1.6;
  margin: 0;
}

const heroBg = document.getElementById("sticky-hero");
const heroText = document.getElementById("hero-text");

window.addEventListener("scroll", function() {
  const scrollY = window.scrollY;
  const windowHeight = window.innerHeight;
  
  /* Calculate progress strictly between 0 and 1 */
  let progress = scrollY / windowHeight;
  if (progress < 0) progress = 0;
  if (progress > 1) progress = 1;
  
  /* Calculate the cinematic effects based on progress */
  
  /* Scale text enormously so you "fly through" it */
  const scale = 1 + (progress * 15);
  
  /* Blur it significantly as it gets closer */
  const blur = progress * 20;
  
  /* Fade out the text */
  const textOpacity = 1 - (progress * 1.5);
  
  /* Fade out the black background to reveal content beneath */
  const bgOpacity = 1 - progress;
  
  /* Apply changes perfectly via inline styles */
  heroText.style.transform = "scale(" + scale + ")";
  heroText.style.filter = "blur(" + blur + "px)";
  heroText.style.opacity = Math.max(textOpacity, 0);
  
  heroBg.style.backgroundColor = "rgba(0, 0, 0, " + Math.max(bgOpacity, 0) + ")";
});