#grainy-spotlight {
  --square-size: 100px;

  details {
    margin: 0 -24px;
    border: 1px solid #222;
    padding: 16px;
  }

  details summary {
    font-style: italic;
  }

  iframe {
    width: 100%;
    height: 500px;
    border: 1px solid #000;
  }

  ul {
    list-style: square;
  }

  li {
    margin-bottom: 0.5em;
  }

  .pre {
    display: inline;
    text-wrap: nowrap;
    font-family: monospace;
    background: #f4f4f4;
    margin: 0;
    padding: 0.2em 0.4em;
    border-radius: 0.5em;
  }

  .inline-button {
    background: none;
    border: 1px solid #e10000;
    color: #e10000;
    font-size: 1rem;
  }

  .inline-button:hover {
    cursor: pointer;
    filter: brightness(0.7);
  }

  .pixel-example {
    display: grid;
    grid-template-columns: repeat(6, auto);
    align-items: center;
    justify-content: center;
    gap: 12px 16px;
    margin-bottom: 16px;
  }

  .pixel-example .square {
    width: var(--square-size);
    height: var(--square-size);
  }

  .pixel-example .square-slider-container {
    width: var(--square-size);
    height: var(--square-size);
    position: relative;
  }

  .pixel-example input {
    width: var(--square-size);
    margin: 0;
  }

  #all-blend-modes-example math {
    font-size: 60px;
    position: relative;
    top: -10px;
  }

  #blendMode {
    border: 1px solid black;
    border-radius: 0;
    background-color: transparent;
    margin-top: 16px;
    font-size: 1.5rem;
  }

  #blendMode:hover {
    background-color: #f5f5f5;
  }

  #blendMode option {
    font-size: 1rem;
  }

  #math-ml {
    display: block;
    font-size: 2rem;
    margin-bottom: 1rem;
  }

  .blend-formula-block {
    display: block;
    font-size: 1.5rem;
    margin: 16px 0;
  }
}

@keyframes slide {
  0% {
    transform: translateX(0px);
  }
  50% {
    transform: translateX(var(--square-size));
  }
  100% {
    transform: translateX(0px);
  }
}

@media (max-width: 560px) {
  #grainy-spotlight {
    --square-size: 64px;

    .pixel-example {
      gap: 8px 10px;
    }

    .pixel-example math {
      font-size: 28px;
    }

    #blendMode {
      font-size: 1.1rem;
    }

    #all-blend-modes-example math {
      font-size: 40px;
    }
  }
}

@media (max-width: 360px) {
  #grainy-spotlight {
    --square-size: 48px;

    .pixel-example {
      gap: 6px 8px;
    }

    .pixel-example math {
      font-size: 24px;
    }

    #blendMode {
      font-size: 1rem;
    }

    #all-blend-modes-example math {
      font-size: 24px;
    }
  }
}