/* ChatBase — ↩️ Undo (undo.js) */
.undo-chip { display: inline-flex; align-items: center; gap: 6px; }
.undo-chip button { font: inherit; font-size: 11px; font-weight: 700; cursor: pointer; padding: 2px 8px; border-radius: 999px; border: 1px solid rgba(52,232,176,.4); background: rgba(52,232,176,.12); color: #5ef0c0; }
#undoToast { position: fixed; left: 50%; bottom: 20px; transform: translateX(-50%); z-index: 100001; display: flex; align-items: center; gap: 12px; background: rgba(20,20,30,.95); color: #fff; border: 1px solid rgba(255,255,255,.18); border-radius: 12px; padding: 10px 14px; box-shadow: 0 10px 30px rgba(0,0,0,.4); font-size: 13px; }
#undoToast button { font: inherit; font-weight: 700; cursor: pointer; padding: 5px 12px; border-radius: 9px; border: none; background: #8ab4ff; color: #10132a; }