/* Estilos del modal y botones */
#rg21-modal { position: fixed; inset: 0; display:none; align-items:center; justify-content:center; background: rgba(0,0,0,.55); z-index:9999; }
.rg21-card { background:#fff; width:520px; max-width:95vw; padding:24px; border-radius:14px; text-align:center; position:relative; box-shadow:0 12px 32px rgba(0,0,0,.25); }
.rg21-close { position:absolute; top:10px; right:14px; font-size:20px; cursor:pointer; }
.rg21-btn { background:#0ea5e9; color:#fff; padding:10px 16px; border:0; border-radius:10px; cursor:pointer; font-size:16px; }
.rg21-btn:hover { opacity:.92; }
#rg21-offer-submit, #rg21-accept, #rg21-decline, #rg21-keep, #rg21-checkout { margin-top:10px; padding:10px 16px; border:0; border-radius:10px; cursor:pointer; }
#rg21-offer-submit { background:#10b981; color:#fff; }
#rg21-accept { background:#f59e0b; color:#fff; display:none; }
#rg21-decline { background:#ef4444; color:#fff; display:none; }
#rg21-keep { background:#e5e7eb; color:#111827; display:none; }
#rg21-checkout { background:#0ea5e9; color:#fff; display:none; }
.rg21-actions { display:flex; gap:10px; justify-content:center; flex-wrap:wrap; }
.rg21-strong { font-weight:700; }