@import url("https://fonts.googleapis.com/css2?family=Roboto&display=swap");

canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}
canvas {
    pointer-events: none;
  }

#hero {
    position: relative;
    width: 100%;
    min-height: 100vh;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  #canv {

    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    pointer-events: none; /* Để không chặn click vào các thành phần khác */
  }


/* Phone User */
@media (max-width: 768px) {
  h1 {
    font-size: 1.25rem;
  }
  .container {
    font-size: 0.8rem;
  }
  .btn {
    font-size: 0.8rem;
  }
  #fullscreenBtn {
    font-size: 0.8rem;
    padding: 8px 15px;
  }
}