/* Control flotante de la invitación: música (play/pausa) e idioma con bandera.
   Chico y discreto, arriba a la izquierda. Reemplaza al botón viejo de música. */
.music-play { display: none !important; }
.ai-flotante { position: fixed; top: max(12px, env(safe-area-inset-top)); left: 12px; z-index: 1040; display: flex; align-items: center; gap: 2px; padding: 3px;
  border-radius: 999px; background: rgba(255, 255, 255, .72); border: 1px solid rgba(0, 0, 0, .06);
  box-shadow: 0 4px 18px rgba(0, 0, 0, .12); -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  font: 500 12px/1 system-ui, -apple-system, "Segoe UI", sans-serif; color: #2b2b2b; transition: opacity .3s; }
.ai-flotante[hidden], .ai-flotante [hidden] { display: none !important; }
.ai-f-btn { border: 0; background: none; color: inherit; height: 30px; min-width: 30px; padding: 0 7px; border-radius: 999px; display: inline-flex; align-items: center; justify-content: center; gap: 6px; cursor: pointer; font: inherit; -webkit-tap-highlight-color: transparent; }
.ai-f-btn:hover, .ai-f-btn:focus-visible { background: rgba(0, 0, 0, .06); outline: none; }
.ai-f-musica { width: 30px; padding: 0; }
.ai-f-musica:not([hidden]) + .ai-f-idioma { border-left: 1px solid rgba(0, 0, 0, .1); padding-left: 2px; margin-left: 1px; }
.ai-f-btn img, .ai-f-menu img { width: 20px; height: 20px; border-radius: 50%; display: block; box-shadow: 0 0 0 1px rgba(0, 0, 0, .08); object-fit: cover; }
.ai-f-txt { letter-spacing: .06em; font-weight: 600; font-size: 11px; }
.ai-f-cod { font-weight: 700; letter-spacing: .04em; }
/* Ecualizador: se mueve mientras suena; en pausa, el ícono de play */
.ai-f-eq { display: none; align-items: flex-end; gap: 2px; height: 13px; }
.ai-f-eq i { width: 3px; border-radius: 2px; background: currentColor; animation: ai-eq 1s ease-in-out infinite; }
.ai-f-eq i:nth-child(2) { animation-delay: -.35s; } .ai-f-eq i:nth-child(3) { animation-delay: -.7s; }
@keyframes ai-eq { 0%, 100% { height: 4px; } 50% { height: 13px; } }
.ai-f-musica[aria-pressed="true"] .ai-f-eq { display: inline-flex; }
.ai-f-musica[aria-pressed="true"] .ai-f-play { display: none; }
@media (prefers-reduced-motion: reduce) { .ai-f-eq i { animation: none; height: 9px; } }
/* Menú de idiomas */
.ai-f-idioma { position: relative; }
.ai-f-menu { position: absolute; top: calc(100% + 8px); left: -4px; min-width: 150px; padding: 5px; border-radius: 14px; background: rgba(255, 255, 255, .96);
  box-shadow: 0 10px 30px rgba(0, 0, 0, .16); border: 1px solid rgba(0, 0, 0, .06); display: grid; gap: 1px; animation: ai-f-abrir .18s ease-out; }
@keyframes ai-f-abrir { from { opacity: 0; transform: translateY(-4px); } }
.ai-f-menu a { display: flex; align-items: center; gap: 10px; padding: 8px 10px; border-radius: 10px; color: #2b2b2b; text-decoration: none; font-size: 13px; }
.ai-f-menu a:hover, .ai-f-menu a:focus-visible { background: rgba(0, 0, 0, .05); outline: none; }
.ai-f-menu a[aria-current] { font-weight: 700; }
.ai-f-menu a[aria-current]::after { content: ""; margin-left: auto; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }