.custom-notification {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 1rem 1.5rem;
    border-radius: 10px;
    font-size: 0.95rem;
    font-weight: 600;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    z-index: 10000;
    opacity: 0;
    transform: translateX(400px);
    transition: all 0.3s ease;
    max-width: 400px;
}

.custom-notification.show {
    opacity: 1;
    transform: translateX(0);
}

.custom-notification.success {
    background: linear-gradient(135deg, #10b981, #059669);
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.custom-notification.error {
    background: linear-gradient(135deg, #ef4444, #dc2626);
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

button[type="submit"]:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

@media (max-width: 640px) {
    .custom-notification {
        top: 10px;
        right: 10px;
        left: 10px;
        max-width: none;
        font-size: 0.85rem;
        padding: 0.875rem 1.25rem;
    }
}