/* Minimal, isolated helpers (namespace nf-) */
.nf-hidden { display:none !important; }
.nf-num { width: 64px; text-align:center; }
.nf-toast { position: fixed; right: 16px; bottom: 16px; padding: 10px 14px; background:#111; color:#fff; border-radius:10px; box-shadow:0 4px 20px rgba(0,0,0,.25); z-index:9999; opacity:.96; }