* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  overflow: hidden;
  background-color: black;
  font-family: Arial, sans-serif;
  color: white;
}

canvas {
  display: block;
  margin: 0 auto;
  border: 5px solid lime;
  background-color: black;
}

#hud {
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);

  width: 1000px;

  display: flex;
  justify-content: space-between;

  font-size: 24px;
  z-index: 5;

  color: white;
}

.screen {
  position: absolute;
  width: 100%;
  height: 100%;

  background: rgba(0, 0, 0, 0.92);

  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;

  z-index: 10;
}

.screen.active {
  display: flex;
}

h1 {
  font-size: 70px;
  margin-bottom: 40px;
  color: lime;
  text-shadow: 0 0 25px lime;
}

h2 {
  font-size: 50px;
  margin-bottom: 20px;
  color: lime;
}

p {
  margin: 10px;
  font-size: 22px;
}

button {
  padding: 15px 35px;
}

.start-logo {
  width: 320px;
  max-width: 80%;
  margin-bottom: 20px;
}

.life-icon {
  width: 28px;
  vertical-align: middle;
  margin-left: 4px;
}