.toast-container {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 9999;
    align-items: center;
}

.toast {
    min-width: 250px;
    padding: 12px 16px;
    border-radius: 6px;
    color: #fff;
    font-size: 14px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

/* Màu */
.toast-success {
    background: #4caf50;
}
.toast-error {
    background: #f44336;
}
.toast-info {
    background: #2196f3;
}
.toast-warning {
    background: #ff9800;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-100%);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeOut {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 0;
        transform: translateY(-100%);
    }
}