/* Componentes auxiliares */
.toast{position:fixed;bottom:16px;right:16px;background:var(--bg);color:var(--fg);border:1px solid var(--border);padding:10px 12px;border-radius:10px;box-shadow:0 4px 20px rgba(0,0,0,.15);opacity:0;transform:translateY(8px);transition:.2s}
.toast.show{opacity:1;transform:translateY(0)}