.custom-css-notification {
    --notification-accent: var(--primary, var(--button-bg, #4361ee));
    position: fixed;
    z-index: 10030;
    top: max(20px, env(safe-area-inset-top));
    left: 50%;
    display: flex;
    align-items: center;
    gap: 10px;
    width: max-content;
    max-width: min(520px, calc(100vw - 32px));
    box-sizing: border-box;
    padding: 11px 16px;
    border: 1px solid var(--toast-border, var(--border, #ddd));
    border-radius: 12px;
    transform: translateX(-50%);
    background: var(--toast-bg, var(--card-bg, #fff));
    color: var(--toast-text, var(--text, #333));
    font-family: var(--font-family, system-ui, -apple-system, sans-serif);
    font-weight: 600;
    line-height: 1.45;
    text-align: start;
    overflow-wrap: anywhere;
    box-shadow: 0 10px 30px color-mix(in srgb, #000 16%, transparent);
    transition: opacity 180ms ease, transform 180ms ease;
}

.custom-css-notification::before {
    content: '';
    width: 8px;
    height: 8px;
    flex: 0 0 8px;
    border-radius: 50%;
    background: var(--notification-accent);
}

.custom-css-notification.success { --notification-accent: var(--notification-success, #27ae60); }
.custom-css-notification.info { --notification-accent: var(--primary, var(--button-bg, #4361ee)); }
.custom-css-notification.warning { --notification-accent: var(--notification-warning, #f39c12); }
.custom-css-notification.error { --notification-accent: var(--notification-error, #e74c3c); }

.custom-css-notification.fade-out {
    opacity: 0;
    transform: translate(-50%, -8px);
}

@media (prefers-reduced-motion: reduce) {
    .custom-css-notification { transition-duration: .01ms; }
}