.notification-stack {
    position: fixed;
    bottom: 24px;
    right: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-width: 360px;
    z-index: 1200;
}

.notification {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 18px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 500;
    color: #111827;
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.15);
    border: 1px solid transparent;
    background-color: #fff;
    transform: translateY(16px);
    opacity: 0;
    transition: transform 0.25s ease, opacity 0.25s ease, box-shadow 0.25s ease;
}

.notification.show {
    transform: translateY(0);
    opacity: 1;
}

.notification-success {
    background-color: #ecfdf5;
    border-color: #34d399;
    color: #065f46;
}

.notification-warning {
    background-color: #fffbeb;
    border-color: #fbbf24;
    color: #92400e;
}

.notification-error {
    background-color: #fef2f2;
    border-color: #f87171;
    color: #7f1d1d;
}

.notification-info {
    background-color: #eff6ff;
    border-color: #60a5fa;
    color: #1e3a8a;
}