html, body {
    margin: 0;
    padding: 0;
    overflow: hidden;
    font-family: Arial, Helvetica, sans-serif;
    background: #000;
    color: white;
  }

  #viewport {
    position: fixed;
    inset: 0;
    z-index: 1;
  }

  #info {
    position: fixed;
    top: 14px;
    left: 14px;
    width: 270px;
    padding: 14px 14px 12px 14px;
    border-radius: 16px;
    background: rgba(10, 16, 30, 0.82);
    border: 1px solid rgba(255,255,255,0.14);
    box-shadow: 0 10px 28px rgba(0,0,0,0.45);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 20;
    text-align: left;
  }

  #info .panel-title {
    font-size: 18px;
    font-weight: 700;
    color: #ffd36a;
    margin-bottom: 10px;
    line-height: 1.25;
    text-align: center;
  }

  #info .section-label {
    display: block;
    margin: 10px 0 6px;
    font-size: 14px;
    font-weight: 600;
    color: #dbe8ff;
  }

  #info select {
    width: 100%;
    height: 38px;
    padding: 6px 10px;
    border-radius: 10px;
    border: 1px solid rgba(255,255,255,0.18);
    background: rgba(30, 60, 150, 0.95);
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    outline: none;
    margin-bottom: 4px;
    box-shadow: inset 0 1px 2px rgba(0,0,0,0.25);
  }

  #info select:hover,
  #info select:focus {
    border-color: rgba(255, 211, 106, 0.75);
    box-shadow: 0 0 0 2px rgba(255, 211, 106, 0.18);
  }

  #info .btn {
    width: 100%;
    margin-top: 8px;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 700;
    padding: 9px 12px;
    border: none;
    box-shadow: 0 4px 12px rgba(0,0,0,0.25);
    transition: transform 0.15s ease, box-shadow 0.15s ease, opacity 0.15s ease;
  }

  #info .btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 7px 16px rgba(0,0,0,0.32);
  }

  #info .btn:active {
    transform: translateY(0);
  }

  #info .btn-warning {
    background: linear-gradient(180deg, #f8be53 0%, #e39a22 100%);
    color: #fff;
  }

  #info .btn-success {
    background: linear-gradient(180deg, #4fd16f 0%, #1fa94b 100%);
    color: #fff;
  }

  #info .btn-info {
    background: linear-gradient(180deg, #58d2f5 0%, #2aa8d4 100%);
    color: #fff;
  }

  #info .btn-danger {
    background: linear-gradient(180deg, #ff6c6c 0%, #df3d3d 100%);
    color: #fff;
  }

  #info .btn[disabled],
  #info select[disabled] {
    opacity: 0.55;
    cursor: not-allowed;
    box-shadow: none;
  }

  #info .small-note {
    margin-top: 10px;
    font-size: 12px;
    line-height: 1.4;
    color: rgba(255,255,255,0.72);
  }

  @media (max-width: 768px) {
    #info {
      width: 230px;
      top: 10px;
      left: 10px;
      padding: 12px;
    }

    #info .panel-title {
      font-size: 16px;
    }

    #info .btn,
    #info select {
      font-size: 14px;
    }
  }