/* Text-to-Speech Controls Styles */

.tts-controls {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: 8px;
}

/* TTS Toggle Button in Chat Actions */
#tts-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

#tts-toggle.active {
    background-color: var(--xburg-purple);
    color: white;
}

#tts-toggle.active:hover {
    background-color: var(--xburg-dark-purple);
}

.tts-icon {
    width: 18px;
    height: 18px;
}

.tts-button {
    width: 44px;
    height: 44px;
    border: 2px solid #e0e0e0;
    border-radius: 50%;
    background: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    position: relative;
}

.tts-button:hover {
    border-color: var(--xburg-purple);
    background: #f8f9fa;
}

.tts-button.active {
    background: var(--xburg-purple);
    border-color: var(--xburg-purple);
    color: white;
}

.tts-button.active:hover {
    background: var(--xburg-dark-purple);
    border-color: var(--xburg-dark-purple);
}

.tts-icon {
    width: 20px;
    height: 20px;
}

.tts-settings-btn {
    width: 36px;
    height: 36px;
}

.tts-settings-btn .tts-icon {
    width: 16px;
    height: 16px;
}

/* Settings Panel */
.tts-settings-panel {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: white;
    border: 1px solid #ddd;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    min-width: 320px;
    max-width: 400px;
}

.tts-settings-panel.hidden {
    display: none;
}

.tts-settings-content {
    padding: 20px;
}

.tts-settings-content h3 {
    margin: 0 0 16px 0;
    font-size: 18px;
    font-weight: 600;
    color: #333;
}

.tts-setting-group {
    margin-bottom: 16px;
}

.tts-setting-group label {
    display: block;
    margin-bottom: 4px;
    font-weight: 500;
    color: #555;
    font-size: 14px;
}

.tts-select {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    background: white;
}

.tts-select:focus {
    outline: none;
    border-color: var(--xburg-purple);
    box-shadow: 0 0 0 2px rgba(79, 15, 135, 0.25);
}

.tts-slider {
    width: calc(100% - 60px);
    margin-right: 12px;
    vertical-align: middle;
}

.tts-value {
    display: inline-block;
    width: 40px;
    font-size: 14px;
    color: #666;
    text-align: right;
}

.tts-test-btn {
    background: #28a745;
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.2s;
}

.tts-test-btn:hover {
    background: #218838;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .tts-controls {
        gap: 6px;
        margin-left: 6px;
    }
    
    .tts-button {
        width: 40px;
        height: 40px;
    }
    
    .tts-settings-btn {
        width: 32px;
        height: 32px;
    }
    
    .tts-settings-panel {
        min-width: 280px;
        max-width: 90vw;
        margin: 0 16px;
    }
    
    .tts-settings-content {
        padding: 16px;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    .tts-button {
        background: #333;
        border-color: #555;
        color: white;
    }
    
    .tts-button:hover {
        background: #444;
        border-color: var(--xburg-purple);
    }
    
    .tts-settings-panel {
        background: #2a2a2a;
        border-color: #555;
        color: white;
    }
    
    .tts-settings-content h3 {
        color: white;
    }
    
    .tts-setting-group label {
        color: #ccc;
    }
    
    .tts-select {
        background: #333;
        border-color: #555;
        color: white;
    }
    
    .tts-value {
        color: #ccc;
    }
}

/* Animation for speaking state */
.tts-button.speaking {
    animation: pulse-tts 2s infinite;
}

@keyframes pulse-tts {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.05); opacity: 0.8; }
    100% { transform: scale(1); opacity: 1; }
}

/* Accessibility */
.tts-button:focus {
    outline: 2px solid var(--xburg-purple);
    outline-offset: 2px;
}

.tts-select:focus,
.tts-slider:focus,
.tts-test-btn:focus {
    outline: 2px solid var(--xburg-purple);
    outline-offset: 2px;
}