.toast-notification {
    position: fixed;
    right: 24px;
    top: 24px;
    z-index: 99999;
    min-width: 280px;
    max-width: 420px;
    padding: 16px 18px;
    border-radius: 16px;
    font-weight: 800;
    color: #fff;
    background: #2563eb;
    box-shadow: 0 20px 70px rgba(0,0,0,.35);
    animation: toastIn .18s ease-out, toastOut .25s ease-in 4s forwards;
}

.toast-notification.success {
    background: linear-gradient(135deg, #16a34a, #22c55e);
}

.toast-notification.error {
    background: linear-gradient(135deg, #dc2626, #ef4444);
}

.toast-notification.warning {
    background: linear-gradient(135deg, #f59e0b, #f97316);
    color: #111827;
}

.toast-notification.info {
    background: linear-gradient(135deg, #2563eb, #06b6d4);
}

@keyframes toastIn {
    from { opacity: 0; transform: translateY(-8px) scale(.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes toastOut {
    to { opacity: 0; transform: translateY(-8px) scale(.98); pointer-events: none; }
}