/* Loader fade-out animation */
    #loader {
      transition: opacity 0.6s ease, visibility 0.6s ease;
    }
    #loader.fade-out {
      opacity: 0;
      visibility: hidden;
    }

    /* Spinner rotation */
    @keyframes spin {
      to { transform: rotate(360deg); }
    }

    /* Logo gentle breathing effect */
    @keyframes pulse-scale {
      0%, 100% { transform: scale(1); opacity: 1; }
      50% { transform: scale(1.05); opacity: 0.9; }
    }