.demo-btn {
      padding: 12px 24px;
      font-size: 16px;
      font-weight: 600;
      cursor: pointer;
      border: none;
      border-radius: 8px;
      background-color: #3b82f6;
      color: white;
      transition: background-color 0.2s, transform 0.1s;
      box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    }

    .demo-btn:hover {
      background-color: #2563eb;
    }

    .demo-btn:active {
      transform: scale(0.98);
    }

    /* --- Modal Component Styling Below --- */

    /* Full page overlay */
    #message-overlay {
      position: fixed;
      top: 0;
      left: 0;
      width: 100vw;
      height: 100vh;
      background-color: rgba(0, 0, 0, 0.5); /* Semi-transparent black */
      backdrop-filter: blur(4px); /* Modern blur effect */
      display: flex;
      align-items: center;
      justify-content: center;
      z-index: 9999; /* Ensures it sits on top of everything */
      opacity: 1;
      transition: opacity 0.3s ease;
    }

    /* Utility class to hide the element */
    #message-overlay.hidden {
      opacity: 0;
      pointer-events: none; /* Prevents clicks when hidden */
    }

    /* Centered Message Box */
    #message-box {
      background-color: #ffffff;
      padding: 30px 50px;
      border-radius: 12px;
      position: relative;
      min-width: 320px;
      text-align: center;
      box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
      border-top: 6px solid transparent; /* Will be overwritten by JS */
      transform: translateY(0);
      transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    }
    
    /* Small animation for popup effect */
    #message-overlay.hidden #message-box {
      transform: translateY(20px) scale(0.95);
    }

    /* Exit Button */
    #close-btn {
      position: absolute;
      top: 12px;
      right: 16px;
      background: transparent;
      border: none;
      font-size: 28px;
      line-height: 1;
      color: #9ca3af;
      cursor: pointer;
      padding: 0;
      transition: color 0.2s;
      box-shadow: none;
    }

    #close-btn:hover {
      color: #1f2937;
      background: transparent;
    }

    /* Message Text */
    #message-text {
      margin: 10px 0 0 0;
      font-size: 20px;
      font-weight: 600;
      color: #1f2937;
    }