.flash-message {
    position: fixed;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    padding: 15px 30px;
    border-radius: 5px;
    z-index: 9999;
    box-shadow: 0 0 10px rgba(0,0,0,0.3);
    color: white;
    min-width: 250px;
    text-align: center;
    font-weight: 600;
}

.flash-error {
    background-color: #f44336;
}