#custom-toast {
    visibility: hidden;
    min-width: 250px;
    background-color: #333;
    color: #fff;
    text-align: center;
    border-radius: 8px;
    padding: 16px;
    position: fixed;
    z-index: 9999;
    left: 50%;
    bottom: 30px;
    font-size: 15px;
    font-family: sans-serif;
    transform: translateX(-50%);
    box-shadow: 0px 4px 15px rgba(0,0,0,0.2);
    opacity: 0;
    transition: opacity 0.3s, bottom 0.3s, visibility 0.3s;
}

#custom-toast.show {
    visibility: visible;
    opacity: 1;
    bottom: 50px;
}