/* ================= Preloader ================= */
    #preloader {
      position: fixed;
      inset: 0;
      background: #ffffff;
      display: flex;
      justify-content: center;
      align-items: center;
      z-index: 9999;
      transition: opacity 0.8s ease-out, visibility 0.8s;
    }
    #preloader.fade-out {
      opacity: 0;
      visibility: hidden;
    }
    .preloader-content {
      text-align: center;
    }
    .preloader-content .logo {
      width: 70px;
      height: 70px;
      margin: 0 auto 16px;
      animation: fadeIn 1.2s ease-in-out;
    }
    .preloader-content h1 {
      font-family: 'Poppins', sans-serif;
      font-size: 1.5rem;
      font-weight: 600;
      color: #333;
      margin-bottom: 20px;
      animation: fadeIn 1.6s ease-in-out;
    }
    .loader {
      border: 3px solid #e0e0e0;
      border-top: 3px solid #5E1EE6;
      border-radius: 50%;
      width: 38px;
      height: 38px;
      margin: 0 auto;
      animation: spin 1s linear infinite;
    }
    @keyframes spin {
      to { transform: rotate(360deg); }
    }
    @keyframes fadeIn {
      from { opacity: 0; transform: translateY(10px); }
      to { opacity: 1; transform: translateY(0); }
    }

    /* ================= Loading Spinner ================= */
    #loading-spinner {
      display: none;
    }
    .spinner {
      border: 4px solid #f3f3f3;
      border-top: 4px solid #5E1EE6;
      border-radius: 50%;
      width: 40px;
      height: 40px;
      animation: spin 1s linear infinite;
    }