body {
  background-color: rgb(40, 40, 40);
  padding: 10px;
  user-select: none;
  color: white;
  font-family: monospace;
}

#container {
  position: relative;
  overflow: hidden;
}

canvas {
  background-color: white;
}

#hud-header {
  width: 1560px; /* match WIDTH -2*padding */
  padding: 20px;
  background-color: rgb(2, 2, 54);
  color: white;
  font-family: monospace;
  font-size: 20px;
  line-height: 25px;
}

#time-display {
  display: inline-block;
  width: 60%;
}

#speed-display {
  display: inline-block;
}

#next-ping-value {
  font-family: monospace;
  font-size: 75px;
  position: absolute;
  top: 50px;
  right: 50px;
  color: rgb(31, 100, 31);
  text-shadow: 2px 2px 3px black;
  display: none; /* toggled from JS */
}

#sweep {
  position: absolute;
  top: 0;
  left: -151px;
  height: 100%;
  width: 150px;
  border-right: 1px solid rgb(0, 137, 0);
  background-image: linear-gradient(to right, rgba(0,137,0,0), rgb(0,137,0,0.4));
}

#sweep.transition-on {
  transition: left 2.5s linear;
}

#sweep.triggered {
  border-right: 1px solid red;
  background-image: linear-gradient(to right, rgba(255,0,0,0), rgb(255,0,0,0.4));
}

#sweep.visible {
  left: 1600px;
}

#msg-log {
  position: absolute;
  bottom: 100px;
  left: 80px;
}

#msg-log .msg {
  line-height: 28px;
  font-size: 25px;
  font-family: monospace;
  color: white;
  text-shadow: 3px 3px 3px black;
  margin-bottom: 12px;
}

#msg-log .msg.player {
  color: #a7adff;
  font-weight: 600;
  font-style: italic;
  text-shadow: 2px 2px 3px #060e34;
}

#speed-selector {
  position: absolute;
  color: white;
  font-family: monospace;
  font-size: 20px;
}

.game-over-msg {
  position: absolute;
  font-size: 50px;
  left: 40%;
  top: 40%;
  text-shadow: 3px 3px 5px black;
}