body {
    background-color: #1e1e1e;
    color: rgb(48, 90, 75);
    font-family: sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
  }

  .container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    padding: 40px;
  }
  .mero {
    justify-content: center;
    align-items: center;
    flex-direction: column;
    display: flex;
    text-align: center;
  }

  .gate-wrapper {
    width: 160px;
    height: 140px;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
  }

  .label {
    margin-top: 10px;
    text-align: center;
  }

  svg {
    width: 120px;
    height: 80px;
  }

  .input-line, .output-line {
    stroke: white;
    stroke-width: 3;
  }

  .circle {
    fill: white;
    stroke: white;
    stroke-width: 1;
  }

  .led {
    cursor: pointer;
    stroke: black;
    stroke-width: 1;
  }

  .led.off {
    fill: #444;
  }

  .led.on {
    fill: #00ff00;
  }