#stereo_container {
      background: #111;
      display: flex;
      justify-content: center;
      align-items: center;
      height: 100vh;
      margin: 0;
      font-family: digi, sans-serif;
    }

    .stereo {
      width: 220px;
      padding: 20px;
      border-radius: 18px;
      background: linear-gradient(145deg, #3a3a3a, #1f1f1f);
      box-shadow:
        0 12px 25px rgba(0, 0, 0, 0.7),
        inset 0 0 8px rgba(0, 0, 0, 0.8);
      border: 1px solid #000;
      position: fixed;
        right:0;
        bottom:0;
      color: #ccc;
    }

    /* Fake screws */
    .stereo::before,
    .stereo::after {
      content: "";
      position: absolute;
      width: 10px;
      height: 10px;
      border-radius: 50%;
      border: 1px solid #555;
      box-shadow: inset 0 0 2px #000;
      background: #222;
    }

    .stereo::before {
      top: 8px;
      left: 8px;
    }

    .stereo::after {
      top: 8px;
      right: 8px;
    }

    .display {
      position: relative;
      overflow: hidden;
      height: 50px;
      border-radius: 6px;
      box-shadow:
        0 0 10px rgba(0, 255, 100, 0.6),
        inset 0 0 6px rgba(0, 0, 0, 0.6);
      padding: 6px 10px;
      margin-bottom: 16px;
    }

    .display-inner {
      white-space: nowrap;
      display: inline-block;
      font-family: digi, sans-serif;
      font-size: 24px;
      letter-spacing: 0.12em;
      color: #b8ffb8;
      text-shadow: 0 0 4px rgba(150, 255, 150, 0.9);
      animation: scroll-left 15s linear infinite;
    }

    @keyframes scroll-left {
      0% {
        transform: translateX(100%);
      }
      100% {
        transform: translateX(-100%);
      }
    }

    /* Simple fake buttons under the display */
    .controls {
      display: flex;
      justify-content: space-between;
      gap: 6px;
    }

    .stereobtn {
      flex: 1;
      padding: 8px 0;
      border-radius: 12px;
      background: linear-gradient(#444, #222);
      box-shadow:
        0 1px 0 #666,
        0 3px 6px rgba(0, 0, 0, 0.7);
      border: 1px solid #000;
      text-align: center;
      font-size: 11px;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      color: #ddd;
      cursor: default;
      user-select: none;
    }

    .stereobtn:active {
      box-shadow:
        0 0 0 #666,
        0 1px 2px rgba(0, 0, 0, 0.8);
      transform: translateY(1px);
    }

    /* Volume slider row */
    .volume-row {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-top: 4px;
    }

    .volume-label {
      font-size: 11px;
      text-transform: uppercase;
      letter-spacing: 0.12em;
      color: #ddd;
      min-width: 32px;
    }

    .volume-value {
      font-family: "Share Tech Mono", monospace;
      font-size: 13px;
      color: #bbb;
      min-width: 26px;
      text-align: right;
    }

    .volume-slider {
      flex: 1;
      -webkit-appearance: none;
      appearance: none;
      height: 5px;
      border-radius: 10px;
      background: linear-gradient(90deg, #777, #222);
      outline: none;
      box-shadow:
        inset 0 0 3px rgba(0, 0, 0, 0.9),
        0 0 3px rgba(255, 255, 255, 0.1);
    }

    /* Slider thumb */
    .volume-slider::-webkit-slider-thumb {
      -webkit-appearance: none;
      appearance: none;
      width: 16px;
      height: 16px;
      border-radius: 50%;
      background: radial-gradient(circle at 30% 30%, #eee, #777);
      border: 1px solid #000;
      box-shadow:
        0 1px 2px rgba(0, 0, 0, 0.9),
        inset 0 0 3px rgba(0, 0, 0, 0.7);
      cursor: pointer;
      margin-top: -5px; /* centers thumb on track */
    }

    .volume-slider::-moz-range-thumb {
      width: 16px;
      height: 16px;
      border-radius: 50%;
      background: radial-gradient(circle at 30% 30%, #eee, #777);
      border: 1px solid #000;
      box-shadow:
        0 1px 2px rgba(0, 0, 0, 0.9),
        inset 0 0 3px rgba(0, 0, 0, 0.7);
      cursor: pointer;
    }

    .volume-slider::-moz-range-track {
      height: 5px;
      border-radius: 10px;
      background: linear-gradient(90deg, #777, #222);
      box-shadow:
        inset 0 0 3px rgba(0, 0, 0, 0.9),
        0 0 3px rgba(255, 255, 255, 0.1);
    }