/* Your normal button styling */
#submitBtn {
    background-color: #2ea44f; /* Replace with your original button color */
    color: #ffffff;
    cursor: pointer;
    transition: background-color 0.1s ease;
}

/* ⬇️ CHANGES THE COLOUR THE EXACT MILLISECOND THE BUTTON IS PRESSED */
#submitBtn:active, 
#submitBtn:focus {
    background-color: #95a5a6 !important; /* Dims to your preferred grey instantly */
}