html,
body {
  margin: 0;
  padding: 0;
  height: 100%;
  width: 100%;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: white;
  overflow: hidden;
}

/* ✅ FULLSCREEN BACKGROUND VIDEO */
#bgVideo {
  position: fixed;
  top: 0;
  left: 0;
  min-width: 10%;
  min-height: 10%;
  object-fit: cover;
  z-index: -1;
  pointer-events: none;
}


/* Button Styling */
#playButton {
  position: absolute;
  bottom: 1%;
  left: 50%;
  transform: translate(-50%, -60%);
  padding: 20px 60px;
  font-size: 28px;
  color: white;
  background: linear-gradient(45deg, #6a11cb, #2575fc);
  border: none;
  border-radius: 12px;
  cursor: pointer;
  box-shadow: 0 8px 15px rgba(37, 117, 252, 0.3);
  transition: background 0.3s ease, transform 0.2s ease;
  user-select: none;
}

#playButton:hover {
  background: linear-gradient(45deg, #2575fc, #6a11cb);
  transform: translate(-50%, -60%) scale(1.05);
}

#playButton:active {
  transform: translate(-50%, -60%) scale(0.95);
}

/* Overlay Heading */
.overlay {
  position: absolute;
  top: 10%;
  left: 50%;
  transform: translate(-50%, -40%);
  width: 100%;
  text-align: center;
  user-select: none;
  animation: wave 8s ease-in-out infinite;
  /* Optional animation */
}

.overlay h1 {
  font-size: 4rem;
  margin: 0;
  text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.7);
}