.toast-container { position: fixed; top: 16px; right: 16px; display: grid; gap: 8px; z-index: 9999; }
.toast { background: #111827; color: #fff; padding: 10px 12px; border-radius: 10px; box-shadow: 0 6px 18px rgba(0,0,0,.12); }
.toast.error { background: #dc2626; }
.toast.success { background: #16a34a; }