#boton-whatsapp{position:fixed;bottom:20px;right:20px;z-index:9999;font-family:inherit}
#boton-whatsapp #boton-icono{width:60px;height:60px;border-radius:50%;background:#25D366;display:flex;align-items:center;justify-content:center;color:#fff;font-size:30px;cursor:pointer;box-shadow:0 4px 12px rgba(0,0,0,.25);transition:transform .2s}
#boton-whatsapp #boton-icono:hover{transform:scale(1.05)}
#boton-whatsapp #boton-icono.hide{display:none}
#boton-whatsapp #chat-frame{width:320px;max-width:calc(100vw - 40px);background:#e5ddd5;border-radius:10px;overflow:hidden;box-shadow:0 6px 24px rgba(0,0,0,.2);position:absolute;bottom:80px;right:0;display:flex;flex-direction:column;font-size:14px}
#boton-whatsapp #chat-frame.hide{display:none}
#boton-whatsapp #heading-section{background:#075E54;color:#fff;padding:10px 12px;display:flex;align-items:center;gap:10px}
#boton-whatsapp #imagen-usuario img{width:44px;height:44px;border-radius:50%;object-fit:cover;background:#fff}
#boton-whatsapp #nombre-farmacia{flex:1;min-width:0}
#boton-whatsapp #nombre-farmacia .titulo-chat{margin:0;font-weight:600;font-size:15px}
#boton-whatsapp #nombre-farmacia .subtitulo-whatsapp{margin:0;font-size:12px;opacity:.85}
#boton-whatsapp #close-button{width:28px;height:28px;background:rgba(255,255,255,.15);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;font-weight:700;user-select:none}
#boton-whatsapp #content-section-chat{padding:18px 14px;display:flex;flex-direction:column;align-items:flex-start;gap:8px;min-height:120px;background:#e5ddd5}
#boton-whatsapp #content-section-chat img{width:32px;height:32px;border-radius:50%;background:#fff;display:none}
#boton-whatsapp #mensaje-chat{background:#fff;padding:8px 12px;border-radius:8px;margin:0;box-shadow:0 1px 2px rgba(0,0,0,.1);max-width:90%;line-height:1.4}
#boton-whatsapp #user-input{display:flex;padding:10px;background:#f0f0f0;gap:8px;align-items:center}
#boton-whatsapp #user-input input{flex:1;padding:10px 12px;border-radius:20px;border:1px solid #ddd;background:#fff;font-size:14px;outline:none}
#boton-whatsapp #user-input input:focus{border-color:#25D366}
#boton-whatsapp #send-button{background:#25D366;color:#fff;border:none;width:40px;height:40px;border-radius:50%;cursor:pointer;font-size:16px;display:flex;align-items:center;justify-content:center}
@media(max-width:480px){#boton-whatsapp #chat-frame{width:calc(100vw - 40px)}}