body {
        background-color: #f9fafb;
        color: #333;
        transition: background-color 0.3s ease, color 0.3s ease;
      }

      .bg-gray-800 {
        background-color: #2d3748;
      }

      body.dark-mode #theme-icon {
        transform: rotate(180deg);
      }

      .bg-gray-900 {
        background-color: #1a202c;
      }

      .text-gray-100 {
        color: #f7fafc;
      }

      .text-gray-300 {
        color: #e2e8f0;
      }

      .text-gray-400 {
        color: #cbd5e0;
      }

      .bg-teal-500 {
        background-color: #38b2ac;
      }

      .bg-teal-600 {
        background-color: #319795;
      }

      /* Dark mode styles */
      body.dark-mode {
        background-color: #1a202c;
        color: #e2e8f0;
      }

      body.dark-mode .bg-white {
        background-color: #2d3748;
      }

      body.dark-mode .text-gray-600 {
        color: #e2e8f0;
      }

      body.dark-mode .text-teal-600 {
        color: #81e6d9;
      }

      /* Add styles for the toggle button */
      #theme-toggle {
        cursor: pointer;
      }

      #theme-icon {
        transition: transform 0.3s ease;
      }

      footer {
        background-color: #1a202c;
        color: white;
        text-align: center;
        padding: 10px 0;
      }

      .card {
        border-radius: 0.5rem;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        padding: 1.5rem;
        background-color: #ffffff;
      }

      .dark-mode .card {
        background-color: #2d3748;
        color: #e2e8f0;
      }

      .menu-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.9);
        z-index: 999;
        display: flex;
        justify-content: center;
        align-items: center;
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.5s ease;
      }

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

      .menu-content {
        color: white;
        padding: 2rem;
        text-align: center;
        border-radius: 0.5rem;
        width: 80%;
        max-width: 400px;
        transform: translateY(-20px);
        transition: transform 0.5s ease, opacity 0.5s ease;
        opacity: 0;
      }

      .menu-overlay.open .menu-content {
        transform: translateY(0);
        opacity: 1;
      }

      .menu-close {
        cursor: pointer;
        top: 1rem;
        right: 1rem;
        font-size: 2rem;
        color: white;
        z-index: 1000;
      }