#tts-container{position:fixed;bottom:30px;right:30px;z-index:9999;}.tts-button{background:linear-gradient(135deg,#667eea,#764ba2);border:none;border-radius:50px;padding:15px 30px;color:#fff;font-size:16px;font-weight:600;cursor:pointer;box-shadow:0 4px 15px rgba(0,0,0,.2);display:flex;align-items:center;gap:10px;transition:.3s;}.tts-button.playing{background:linear-gradient(135deg,#f093fb,#f5576c);animation:pulse 2s infinite;}@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(245,87,108,.7);}70%{box-shadow:0 0 0 15px rgba(245,87,108,0);}}