/* Reset basic styles */
    * {
      box-sizing: border-box;
    }

    body {
      margin: 0;
      padding: 0;
      font-family: Arial, sans-serif;
      background: #f0f0f0;
      min-height: 100vh;
    }

    /* Demo content */
    .demo-content {
      padding: 20px;
      max-width: 800px;
      margin: 0 auto;
    }

    /* KANGTAU Floating Menu - MOBILE FRIENDLY & RESPONSIVE */
    #kangtau-float-menu {
      position: fixed;
      bottom: 20vh;
      left: 20px;
      z-index: 9999;
      display: flex;
      flex-direction: column-reverse;
      align-items: flex-start;
      pointer-events: none;
    }

    .kangtau-fab {
      width: 68px;
      height: 68px;
      border-radius: 50%;
      background: #000000;
      border: none;
      box-shadow: 0 4px 18px rgba(0,0,0,0.20);
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      pointer-events: auto;
      overflow: hidden;
      padding: 0;
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      position: relative;
    }

    .kangtau-fab:hover {
      transform: scale(1.05);
      box-shadow: 0 6px 26px rgba(0,0,0,0.28);
    }

    .kangtau-fab:active,
    .kangtau-fab:focus {
      box-shadow: 0 6px 26px rgba(0,0,0,0.28);
      outline: none;
    }

    .kangtau-fab.open {
      transform: rotate(45deg);
      background: #333;
    }

    .kangtau-fab img {
      width: 54px;
      height: 54px;
      display: block;
      pointer-events: none;
      transition: transform 0.3s ease;
    }

    .kangtau-fab.open img {
      transform: rotate(-45deg);
    }

    #kangtau-fab-nav {
      display: flex;
      flex-direction: column;
      opacity: 0;
      visibility: hidden;
      transform: translateY(20px) scale(0.8);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      pointer-events: none;
      margin-bottom: 12px;
      gap: 8px;
    }

    #kangtau-float-menu.open #kangtau-fab-nav {
      opacity: 1;
      visibility: visible;
      transform: translateY(0) scale(1);
      pointer-events: auto;
    }

    #kangtau-fab-nav a {
      background: rgba(17, 17, 17, 0.9);
      border-radius: 16px;
      box-shadow: 0 2px 12px rgba(0,0,0,0.15);
      text-decoration: none;
      min-width: 64px;
      min-height: 64px;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: all 0.2s ease;
      padding: 12px;
      position: relative;
      pointer-events: auto;
      backdrop-filter: blur(10px);
      border: 1px solid rgba(255, 255, 255, 0.1);
    }

    #kangtau-fab-nav a:hover {
      background: rgba(34, 34, 34, 0.95);
      box-shadow: 0 4px 20px rgba(0,0,0,0.25);
      transform: translateX(8px) scale(1.05);
    }

    #kangtau-fab-nav img {
      width: 40px;
      height: 40px;
      display: block;
      transition: transform 0.2s ease;
    }

    #kangtau-fab-nav a:hover img {
      transform: scale(1.1);
    }

    .sr-only {
      position: absolute !important;
      width: 1px;
      height: 1px;
      padding: 0;
      margin: -1px;
      overflow: hidden;
      clip: rect(0,0,0,0);
      border: 0;
    }

    /* Responsive Design */
    @media (max-width: 768px) {
      #kangtau-float-menu {
        left: 16px;
        bottom: 20vh;
      }
      
      .kangtau-fab {
        width: 60px;
        height: 60px;
      }
      
      .kangtau-fab img {
        width: 46px;
        height: 46px;
      }
      
      #kangtau-fab-nav a {
        min-width: 56px;
        min-height: 56px;
        padding: 8px;
      }
      
      #kangtau-fab-nav img {
        width: 36px;
        height: 36px;
      }
    }

    @media (max-width: 480px) {
      #kangtau-float-menu {
        left: 12px;
        bottom: 20vh;
      }
      
      .kangtau-fab {
        width: 56px;
        height: 56px;
      }
      
      .kangtau-fab img {
        width: 40px;
        height: 40px;
      }
      
      #kangtau-fab-nav a {
        min-width: 52px;
        min-height: 52px;
        padding: 6px;
      }
      
      #kangtau-fab-nav img {
        width: 32px;
        height: 32px;
      }
    }

    /* Landscape mobile */
    @media (max-height: 500px) and (orientation: landscape) {
      #kangtau-float-menu {
        bottom: 20vh;
        left: 8px;
      }
      
      .kangtau-fab {
        width: 52px;
        height: 52px;
      }
      
      .kangtau-fab img {
        width: 36px;
        height: 36px;
      }
      
      #kangtau-fab-nav {
        gap: 4px;
      }
      
      #kangtau-fab-nav a {
        min-width: 48px;
        min-height: 48px;
        padding: 4px;
      }
      
      #kangtau-fab-nav img {
        width: 28px;
        height: 28px;
      }
    }

    /* Large screens */
    @media (min-width: 1200px) {
      .kangtau-fab {
        width: 72px;
        height: 72px;
      }
      
      .kangtau-fab img {
        width: 58px;
        height: 58px;
      }
      
      #kangtau-fab-nav a {
        min-width: 68px;
        min-height: 68px;
        padding: 14px;
      }
      
      #kangtau-fab-nav img {
        width: 44px;
        height: 44px;
      }
    }

    /* Overlay untuk menutup menu saat klik di luar */
    .menu-overlay {
      position: fixed;
      top: 0;
      left: 0;
      width: 100vw;
      height: 100vh;
      background: transparent;
      z-index: 9998;
      pointer-events: none;
      opacity: 0;
      transition: opacity 0.3s ease;
    }

    .menu-overlay.active {
      pointer-events: auto;
      opacity: 1;
    }