/* Estilos para o livro interativo de Eletroquímica */

/* Variáveis CSS para temas */
:root {
    /* Tema claro (padrão) */
    --bg-color: #f4f4f4;
    --container-bg: #fff;
    --text-color: #333;
    --heading-color: #0056b3;
    --link-color: #0056b3;
    --link-hover: #003d82;
    --button-bg: #0056b3;
    --button-text: #fff;
    --button-hover: #003d82;
    --card-bg: #e7f3ff;
    --card-hover: #d0e8ff;
    --avatar-bg: #f0f8ff;
    --border-color: rgba(0,0,0,0.1);
    --shadow-color: rgba(0,0,0,0.1);
    
    /* Tamanho da fonte base - será ajustado via JavaScript */
    font-size: 100%;
}

/* Tema escuro */
body.theme-dark {
    --bg-color: #222;
    --container-bg: #333;
    --text-color: #eee;
    --heading-color: #4a9eff;
    --link-color: #4a9eff;
    --link-hover: #7cb9ff;
    --button-bg: #4a9eff;
    --button-text: #fff;
    --button-hover: #7cb9ff;
    --card-bg: #444;
    --card-hover: #555;
    --avatar-bg: #3a3a3a;
    --border-color: rgba(255,255,255,0.1);
    --shadow-color: rgba(0,0,0,0.3);
}

/* Tema de alto contraste */
body.theme-high-contrast {
    --bg-color: #000;
    --container-bg: #000;
    --text-color: #fff;
    --heading-color: #ffff00;
    --link-color: #ffff00;
    --link-hover: #ffff99;
    --button-bg: #ffff00;
    --button-text: #000;
    --button-hover: #ffff99;
    --card-bg: #333;
    --card-hover: #444;
    --avatar-bg: #222;
    --border-color: #fff;
    --shadow-color: rgba(255,255,255,0.3);
}

/* Estilos base */
body {
    font-family: sans-serif;
    line-height: 1.6;
    margin: 20px;
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: background-color 0.3s, color 0.3s;
}

.container {
    max-width: 900px;
    margin: auto;
    background: var(--container-bg);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 0 10px var(--shadow-color);
}

h1, h2, h3 {
    color: var(--heading-color);
}

a {
    color: var(--link-color);
    text-decoration: none;
}

a:hover {
    color: var(--link-hover);
}

/* Estilos para a lista de capítulos */
.chapter-list {
    list-style-type: none;
    padding: 0;
}

.chapter-list li {
    margin-bottom: 15px;
    padding: 15px;
    background-color: var(--card-bg);
    border-radius: 5px;
    transition: all 0.3s ease;
}

.chapter-list li:hover {
    background-color: var(--card-hover);
    transform: translateY(-3px);
}

.chapter-list a {
    font-weight: bold;
    font-size: 1.2em;
    display: block;
}

.chapter-list p {
    margin-top: 10px;
    color: var(--text-color);
}

/* Estilos para seções de avatar */
.avatar-section {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
    background-color: var(--avatar-bg);
    padding: 15px;
    border-radius: 5px;
}

.avatar-section img {
    max-width: 150px;
    margin-right: 20px;
    border-radius: 50%;
}

/* Controles de áudio */
.audio-control {
    margin: 10px 0;
    display: flex;
    align-items: center;
}

.audio-control button {
    background-color: var(--button-bg);
    color: var(--button-text);
    border: none;
    padding: 8px 15px;
    border-radius: 5px;
    cursor: pointer;
    margin-right: 10px;
    display: flex;
    align-items: center;
}

.audio-control button:hover {
    background-color: var(--button-hover);
}

.audio-control button svg {
    margin-right: 5px;
}

/* Rodapé */
footer {
    margin-top: 30px;
    text-align: center;
    color: var(--text-color);
    opacity: 0.8;
    font-size: 0.9em;
}

/* Seletor de idioma */
.language-selector {
    position: absolute;
    top: 20px;
    right: 20px;
    display: flex;
    gap: 10px;
}

.language-selector button {
    background-color: var(--button-bg);
    color: var(--button-text);
    border: none;
    padding: 5px 10px;
    border-radius: 5px;
    cursor: pointer;
}

.language-selector button:hover {
    background-color: var(--button-hover);
}

.language-selector button.active {
    background-color: var(--button-hover);
    font-weight: bold;
}

/* Botão de Libras */
.libras-button {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: #28a745;
    color: white;
    border: none;
    padding: 10px 15px;
    border-radius: 50%;
    width: 60px;
    height: 60px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
    z-index: 100;
}

.libras-button:hover {
    background-color: #218838;
}

.libras-button img {
    width: 40px;
    height: 40px;
}

/* Modal de Libras */
.libras-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.7);
    z-index: 1000;
}

.libras-modal-content {
    position: relative;
    background-color: var(--container-bg);
    margin: 10% auto;
    padding: 20px;
    width: 80%;
    max-width: 700px;
    border-radius: 8px;
    color: var(--text-color);
}

.libras-close {
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 24px;
    font-weight: bold;
    cursor: pointer;
    color: var(--text-color);
}

.libras-video {
    width: 100%;
    height: 400px;
    background-color: #000;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    margin-top: 20px;
}

/* Barra de acessibilidade */
.accessibility-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--container-bg);
    padding: 10px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    box-shadow: 0 2px 5px var(--shadow-color);
    z-index: 90;
}

.accessibility-bar button {
    background-color: var(--button-bg);
    color: var(--button-text);
    border: none;
    padding: 5px 10px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 0.9em;
    display: flex;
    align-items: center;
    justify-content: center;
}

.accessibility-bar button:hover {
    background-color: var(--button-hover);
}

.accessibility-bar button.active {
    background-color: var(--button-hover);
    font-weight: bold;
}

.accessibility-bar button svg {
    margin-right: 5px;
}

.font-size-controls {
    display: flex;
    align-items: center;
    gap: 5px;
}

.font-size-indicator {
    background-color: var(--card-bg);
    padding: 3px 8px;
    border-radius: 3px;
    font-size: 0.9em;
    min-width: 40px;
    text-align: center;
}

/* Glossário */
.glossary-button {
    position: fixed;
    bottom: 20px;
    left: 20px;
    background-color: var(--button-bg);
    color: var(--button-text);
    border: none;
    padding: 10px;
    border-radius: 5px;
    cursor: pointer;
    display: flex;
    align-items: center;
    box-shadow: 0 4px 8px var(--shadow-color);
    z-index: 100;
}

.glossary-button:hover {
    background-color: var(--button-hover);
}

.glossary-button svg {
    margin-right: 5px;
}

.glossary-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.7);
    z-index: 1000;
    overflow-y: auto;
}

.glossary-modal-content {
    position: relative;
    background-color: var(--container-bg);
    margin: 5% auto;
    padding: 20px;
    width: 80%;
    max-width: 800px;
    border-radius: 8px;
    color: var(--text-color);
    max-height: 80vh;
    overflow-y: auto;
}

.glossary-close {
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 24px;
    font-weight: bold;
    cursor: pointer;
    color: var(--text-color);
}

.glossary-list {
    list-style-type: none;
    padding: 0;
}

.glossary-item {
    margin-bottom: 15px;
    padding: 15px;
    background-color: var(--card-bg);
    border-radius: 5px;
}

.glossary-term {
    font-weight: bold;
    color: var(--heading-color);
    margin-bottom: 5px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.glossary-definition {
    margin-top: 5px;
}

.glossary-audio {
    background-color: var(--button-bg);
    color: var(--button-text);
    border: none;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.glossary-audio:hover {
    background-color: var(--button-hover);
}

/* Ajustes para espaçamento com a barra de acessibilidade */
body {
    padding-top: 50px;
}

/* Responsividade */
@media (max-width: 768px) {
    .avatar-section {
        flex-direction: column;
        text-align: center;
    }
    
    .avatar-section img {
        margin-right: 0;
        margin-bottom: 15px;
    }
    
    .accessibility-bar {
        flex-wrap: wrap;
        padding: 5px;
    }
    
    .language-selector {
        position: static;
        margin-bottom: 15px;
    }
    
    body {
        padding-top: 80px;
    }
}