body, html {
  margin: 0;
  padding: 0;
  height: 100%;
  overflow: hidden;
  font-family: Arial, sans-serif;
}

/* Background video */
.video-background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none; /* prevents clicking on video */
  z-index: -1;
  overflow: hidden;
}

.video-background iframe {
  width: 100vw;
  height: 100vh;
  object-fit: cover;
}

/* Center Button */
.button-box {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%); /* always center */
  text-align: center;
}

.video-overlay{
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.5); 

}

.button-box button {
  padding: 15px 40px;
  font-size: 18px;
  border: none;
  border-radius: 12px;
  background: papayawhip;
  color: black;
  cursor: pointer;
  box-shadow: 0 4px 15px rgba(0,0,0,0.4);
  transition: background 0.3s ease, transform 0.3s ease;
}

.button-box button:hover {
  background: #0056b3;
  transform: scale(1.05); /* grows without breaking center */
}