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

body, html {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #001;
}
canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

#controls {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 100;
  display: flex;
  align-items: center;
  z-index: 1;
}
button {
  background-color: #4CAF50;
  border: none;
  color: white;
  padding: 15px 32px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  border-radius: 10px;
  font-size: 16px;
  margin: 4px 2px;
  cursor: pointer;
  transition: background-color 0.3s;
  &:hover {
    background-color: #25902950;
  }
  &:active {
    background-color: #00FFFFCC;
  }
}
.btn {
  background-color: rgba(0, 0, 0, 0.4);
  border: none;
  color: rgba(255, 255, 255, 0.4);
  padding: 10px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 2rem;
  margin: 2px 2px;
  cursor: pointer;
  border-radius: 5px;
  transition: background-color 0.3s;
}
.btn:hover {
  background-color: rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 0, 1);
}
#fullscreenBtn {
  font-size: 20px;
}

.container {
  margin: 0 auto;
  padding: 2rem;
  position: absolute;
  width: 100%;
  font-family: "Roboto", sans-serif;
  text-shadow: 0 0 5px #000, 0 0 10px #000;
  color: #fff;
  filter: drop-shadow(0 0 10px rgba(0, 0, 50, 0.7))
		drop-shadow(0 0 15px rgba(0, 0, 0, 0.5))
		drop-shadow(0 0 20px rgba(0, 0, 0, 0.3));
  z-index: 2;
}

/* 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;
  }
}