/* Estilos para navegação entre capítulos e controles de acessibilidade */

.accessibility-bar {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    border: 1px solid #dee2e6;
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 20px;
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.language-controls, .theme-controls, .font-controls {
    display: flex;
    gap: 8px;
    align-items: center;
}

.accessibility-bar button {
    background: #007bff;
    color: white;
    border: none;
    padding: 8px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s ease;
}

.accessibility-bar button:hover {
    background: #0056b3;
    transform: translateY(-1px);
}

.accessibility-bar button.active {
    background: #28a745;
}

.theme-button {
    font-size: 16px;
    padding: 6px 10px;
}

#font-size-indicator {
    background: #6c757d;
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    min-width: 40px;
    text-align: center;
}

.chapter-navigation {
    background: linear-gradient(135deg, #e3f2fd, #bbdefb);
    border: 1px solid #90caf9;
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.chapter-navigation button {
    background: #2196f3;
    color: white;
    border: none;
    padding: 10px 16px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 6px;
}

.chapter-navigation button:hover {
    background: #1976d2;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.chapter-navigation button:disabled {
    background: #ccc;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

#home-button {
    background: #ff9800 !important;
}

#home-button:hover {
    background: #f57c00 !important;
}

/* Controles de áudio avançados */
.audio-controls-advanced {
    background: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 6px;
    padding: 10px;
    margin: 10px 0;
    display: flex;
    gap: 8px;
    align-items: center;
}

.audio-controls-advanced button {
    background: #17a2b8;
    color: white;
    border: none;
    padding: 6px 10px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: all 0.3s ease;
}

.audio-controls-advanced button:hover {
    background: #138496;
    transform: translateY(-1px);
}

.audio-controls-advanced .audio-pause {
    background: #ffc107;
    color: #212529;
}

.audio-controls-advanced .audio-pause:hover {
    background: #e0a800;
}

.audio-controls-advanced .audio-restart {
    background: #6c757d;
}

.audio-controls-advanced .audio-restart:hover {
    background: #5a6268;
}

/* Responsividade */
@media (max-width: 768px) {
    .accessibility-bar {
        flex-direction: column;
        gap: 10px;
    }
    
    .chapter-navigation {
        flex-direction: column;
        gap: 10px;
    }
    
    .chapter-navigation button {
        width: 100%;
        justify-content: center;
    }
    
    .language-controls, .theme-controls, .font-controls {
        justify-content: center;
    }
}

/* Temas */
.theme-dark {
    background-color: #121212;
    color: #ffffff;
}

.theme-dark .accessibility-bar {
    background: linear-gradient(135deg, #2d2d2d, #1a1a1a);
    border-color: #444;
}

.theme-dark .chapter-navigation {
    background: linear-gradient(135deg, #1e3a5f, #0d47a1);
    border-color: #1976d2;
}

.theme-high-contrast {
    background-color: #000000;
    color: #ffff00;
}

.theme-high-contrast .accessibility-bar {
    background: #000000;
    border: 2px solid #ffff00;
}

.theme-high-contrast .chapter-navigation {
    background: #000000;
    border: 2px solid #ffff00;
}

.theme-high-contrast button {
    background: #ffff00 !important;
    color: #000000 !important;
    border: 2px solid #ffff00 !important;
}

/* Ocultar elementos de idioma */
.lang-en {
    display: none;
}

body.english-mode .lang-pt {
    display: none;
}

body.english-mode .lang-en {
    display: block;
}