.tts-play-btn {
    padding: 5px 10px;
    font-size: 16px;
    font-weight: 500;
    border-radius: 6px;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    width: auto;
}

.tts-play-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.tts-play-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.tts-play-btn.btn-primary {
    background-color: #007bff;
    border-color: #007bff;
}

.tts-play-btn.btn-primary:hover {
    background-color: #0056b3;
    border-color: #0056b3;
}

.tts-play-btn.btn-warning {
    background-color: #ffc107;
    border-color: #ffc107;
    color: #212529;
}

.tts-play-btn.btn-warning:hover {
    background-color: #e0a800;
    border-color: #d39e00;
}

.tts-audio-controls {
    margin-top: 15px;
    padding: 15px;
    background-color: #fff;
    border: 1px solid #dee2e6;
    border-radius: 6px;
}

.tts-audio-controls audio {
    width: 100%;
    height: 40px;
}

@media (max-width: 768px) {
    .tts-button-container {
        margin: 15px 0;
        padding: 12px;
    }
    
    .tts-play-btn {
        font-size: 14px;
        max-width: 135px;
    }
    
    .tts-audio-controls {
        margin-top: 10px;
        padding: 10px;
    }
}

.tts-loading {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid #f3f3f3;
    border-top: 2px solid #007bff;
    border-radius: 50%;
    animation: tts-spin 1s linear infinite;
    margin-right: 8px;
}

@keyframes tts-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.tts-success {
    color: #28a745;
    font-weight: 500;
}

.tts-error {
    color: #dc3545;
    font-weight: 500;
}

.tts-reading {
    background-color: #fff3cd;
    border-left: 4px solid #ffc107;
    padding: 10px;
    margin: 10px 0;
    border-radius: 4px;
}