body {
  margin: 0;
  padding: 0;
  background-color: #000;
  overflow: hidden;
}

/* Keep the model element in the DOM (needed to trigger immersive mode)
   but don't render it inline on the page. Its src is only set right
   before entering immersive mode — see avpRevealScript.js. */
#theatre {
  display: none;
}

/* Overlay for "One More Thing..." reveal */
#revealOverlay {
  position: fixed;
  top: 6vh;
  left: 50%;
  transform: translateX(-50%);
  z-index: 5;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2.5rem;
}

#revealText {
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 700;
  color: white;
  font-family: Helvetica, sans-serif;
  letter-spacing: -0.02em;
  text-align: center;
  margin: 0;
}

/* Rounded rectangle containing the capsule button(s) — at least half the
   viewport wide and a quarter of it tall, per spec */
#revealFrame {
  box-sizing: border-box;
  min-width: 50vw;
  min-height: 25vh;
  border-radius: 32px;
  border: 4px solid rgba(255, 255, 255, 0.5);
  background-color: rgba(0, 0, 0, 0.4);
  padding: 2rem 2.8rem;
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
}

/* Shared capsule button style — Watch Reveal / Exit Immersive and Start
   Video are always rendered at the same size */
#toggleImmersiveBtn,
#startVideoBtn {
  border-radius: 999px;
  border: none;
  background-color: white;
  color: black;
  font-size: 1.1rem;
  font-family: Helvetica, sans-serif;
  font-weight: 600;
  padding: 0.8rem 2rem;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

#toggleImmersiveBtn:hover,
#startVideoBtn:hover {
  background-color: #e8e8e8;
}

#toggleImmersiveBtn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

#toggleImmersiveBtn:disabled {
  cursor: default;
  opacity: 0.85;
}

/* Loading spinner shown inside the toggle button while requestImmersive() is pending */
.spinner {
  display: none;
  width: 1em;
  height: 1em;
  margin-right: 0.6rem;
  border: 2px solid rgba(0, 0, 0, 0.2);
  border-top-color: black;
  border-radius: 50%;
  animation: spinner-rotate 0.8s linear infinite;
}

#toggleImmersiveBtn.loading .spinner {
  display: inline-block;
}

@keyframes spinner-rotate {
  to {
    transform: rotate(360deg);
  }
}

/* Start Video only appears once we're inside the immersive environment */
#startVideoBtn {
  display: none;
}

/* Video surface for immersive mode */
#immersiveVideoOverlay {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  background-color: transparent;
  z-index: 10;
}

#trailerVideo {
  width: 60vw;
  max-width: 800px;
  border-radius: 12px;
  box-shadow: 0 0 40px rgba(0, 0, 0, 0.8);
}