.toast {
    opacity: 0;
    transition: opacity 0.5s ease;
    position: fixed;
    top: 100px;
    left: 20px;
    background: #fff;
    padding: 10px 15px;
    border-radius: 6px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
}

.toast.show {
    opacity: 1;
}