.top-buttons {
      width: 100%;
      display: flex;
      justify-content: space-between;
      margin-bottom: 10px;
    }

    .top-buttons button {
      background-color: gray;
      color: white;
      border: none;
      padding: 10px 20px;
      font-size: 14px;
      cursor: pointer;
      border-radius: 5px;
    }

    .top-buttons button:hover {
      background-color: darkgray;
    }

    .dropdown-container {
      display: flex;
      justify-content: space-between;
      width: 100%;
      margin-bottom: 10px;
    }

    .dropdown {
      background-color: gray;
      color: white;
      border: none;
      padding: 5px;
      cursor: pointer;
      font-size: 12px;
      flex: 1;
      margin: 0 5px;
    }

    .progress-container {
      display: flex;
      align-items: center;
      margin-bottom: 10px;
      width: 100%;
    }

    .progress-bar {
      flex: 1;
      background-color: #444;
      border: 1px solid #666;
      border-radius: 5px;
      height: 50px;
      overflow: hidden;
      position: relative;
    }

    .progress {
      height: 100%;
      background-color: #006666;
      width: 0%;
      text-align: center;
      color: white;
      line-height: 20px;
      font-size: 12px;
    }

    .progress.red {
      background-color: #660000;
    }

    .button {
      background-color: gray;
      color: white;
      border: none;
      padding: 5px 10px;
      cursor: pointer;
      font-size: 14px;
      margin-left: 10px;
      border-radius: 3px;
    }

    .button:hover {
      background-color: darkgray;
    }

    .digit-display {
      font-size: 48px;
      margin: 20px 0;
      padding: 10px;
      background-color: #222;
      color: #0f0;
      border-radius: 5px;
      text-align: center;
      width: 100px;
    }

    .button-group {
      margin-top: 20px;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
    }

    .button-group .button {
      background-color: gray;
      color: white;
      border: none;
      padding: 10px 15px;
      font-size: 16px;
      cursor: pointer;
      border-radius: 5px;
      transition: background-color 0.3s ease;
    }

    .button-group .button:hover {
      background-color: darkgray;
    }

    .button-group .random-number {
      background-color: #222;
      color: #0f0;
      font-size: 24px;
      padding: 10px 20px;
      text-align: center;
      border-radius: 5px;
      pointer-events: none;
    }

    .countdown {
      margin-top: 10px;
      font-size: 18px;
      color: #ffcc00;
    }