body {
    margin: 0;

    font-family: monospace;
    background-color: #000;
}

#myCanvas {
    width: 100vw;
    height: 100vh;
    display: block;
}

#controls {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 1rem;
    right: 1rem;

    padding: 1rem;

    border: 1px solid #333;
    background: rgba(255, 255, 255, 1);
    border-radius: 4px;
}

button {
    margin: 0.5rem;
    padding: 0.5rem 1rem;
    border: 1px solid #333;
    border-radius: 4px;
    background: #fff;
    color: #333;
    cursor: pointer;
}

button:hover {
    background: #eee;
}

#start {
    margin-bottom: 1rem;
}

#boidCount {
    margin-bottom: 1rem;
}

#gridSize {
    margin-top: 0.5rem;
    margin-bottom: 0.5rem;
}


@media (max-width: 768px) {
  button {
    margin: 0.25rem;
    padding: 0.25rem 0.5rem;
  }

  #controls {
    padding: 0.25rem;
  }
}

input[type=range] {
    height: 31px;
    -webkit-appearance: none;
    margin: 10px 0;
    width: 100%;
  }
  input[type=range]:focus {
    outline: none;
  }
  input[type=range]::-webkit-slider-runnable-track {
    width: 100%;
    height: 16px;
    cursor: pointer;
    animate: 0.2s;
    box-shadow: 0px 0px 0px #000000;
    background: #FFFFFF;
    border-radius: 8px;
    border: 1px solid #333333;
  }
  input[type=range]::-webkit-slider-thumb {
    box-shadow: 0px 0px 0px #828282;
    border: 1px solid #333333;
    height: 24px;
    width: 24px;
    border-radius: 2px;
    background: #333333;
    cursor: pointer;
    -webkit-appearance: none;
    margin-top: -5px;
  }
  input[type=range]:focus::-webkit-slider-runnable-track {
    background: #FFFFFF;
  }
  input[type=range]::-moz-range-track {
    width: 100%;
    height: 16px;
    cursor: pointer;
    animate: 0.2s;
    box-shadow: 0px 0px 0px #000000;
    background: #FFFFFF;
    border-radius: 8px;
    border: 1px solid #333333;
  }
  input[type=range]::-moz-range-thumb {
    box-shadow: 0px 0px 0px #828282;
    border: 1px solid #333333;
    height: 24px;
    width: 24px;
    border-radius: 2px;
    background: #333333;
    cursor: pointer;
  }
  input[type=range]::-ms-track {
    width: 100%;
    height: 16px;
    cursor: pointer;
    animate: 0.2s;
    background: transparent;
    border-color: transparent;
    color: transparent;
  }
  input[type=range]::-ms-fill-lower {
    background: #FFFFFF;
    border: 1px solid #333333;
    border-radius: 16px;
    box-shadow: 0px 0px 0px #000000;
  }
  input[type=range]::-ms-fill-upper {
    background: #FFFFFF;
    border: 1px solid #333333;
    border-radius: 16px;
    box-shadow: 0px 0px 0px #000000;
  }
  input[type=range]::-ms-thumb {
    margin-top: 1px;
    box-shadow: 0px 0px 0px #828282;
    border: 1px solid #333333;
    height: 24px;
    width: 24px;
    border-radius: 2px;
    background: #333333;
    cursor: pointer;
  }
  input[type=range]:focus::-ms-fill-lower {
    background: #FFFFFF;
  }
  input[type=range]:focus::-ms-fill-upper {
    background: #FFFFFF;
  }