:root {
    --primary-color: #2c3e50;
    --secondary-color: #34495e;
    --accent-color: #9b59b6;
    --light-color: #ecf0f1;
    --dark-color: #2c3e50;
    --text-color: #333;
    --sidebar-width: 280px;
    --header-height: 60px;
    --card-bg: white;
    --card-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    --transition-speed: 0.3s;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Arial Unicode MS', Arial, sans-serif;
    color: var(--text-color);
    background-color: #f8f8f8;
    line-height: 1.6;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* Layout Principal */
.container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--primary-color);
    color: white;
    transition: transform var(--transition-speed);
    overflow-y: auto;
    height: 100vh;
    position: fixed;
    display: flex;
    flex-direction: column;
}

.sidebar-header {
    padding: 20px;
    background-color: var(--secondary-color);
    text-align: center;
}

.sidebar-header h3 {
    margin-bottom: 5px;
    font-size: 1.5rem;
}

.sidebar-menu {
    flex-grow: 1;
    padding: 10px 0;
}

.sidebar-menu li {
    padding: 10px 20px;
    border-left: 3px solid transparent;
    transition: all var(--transition-speed);
}

.sidebar-menu li.menu-section {
    padding: 15px 20px 5px;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: bold;
    border-left: none;
}

.sidebar-menu li:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-left-color: var(--accent-color);
}

.sidebar-menu li.menu-section:hover {
    background-color: transparent;
}

.sidebar-menu li.active {
    background-color: rgba(255, 255, 255, 0.1);
    border-left-color: var(--accent-color);
}

.sidebar-menu a {
    display: flex;
    align-items: center;
}

.sidebar-menu a i {
    margin-right: 10px;
    width: 20px;
    text-align: center;
}

.sidebar-footer {
    padding: 15px;
    text-align: center;
    font-size: 0.8rem;
    background-color: var(--secondary-color);
}

/* Conteúdo Principal */
.content {
    flex: 1;
    margin-left: var(--sidebar-width);
    transition: margin-left var(--transition-speed);
}

header {
    height: var(--header-height);
    background-color: white;
    display: flex;
    align-items: center;
    padding: 0 20px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

#sidebar-toggle {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--primary-color);
    margin-right: 15px;
    display: none;
}

header h1 {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.content-body {
    padding: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

/* Cards */
.card-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
    margin: 30px 0;
}

.card {
    background-color: var(--card-bg);
    border-radius: 8px;
    padding: 20px;
    box-shadow: var(--card-shadow);
    transition: transform 0.3s, box-shadow 0.3s;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
    color: var(--accent-color);
}

.card h3 {
    margin-bottom: 10px;
    color: var(--primary-color);
}

.card p {
    margin-bottom: 15px;
    flex-grow: 1;
}

.card-link {
    padding: 8px 15px;
    background-color: var(--accent-color);
    color: white;
    border-radius: 20px;
    transition: background-color 0.3s;
}

.card-link:hover {
    background-color: #8e44ad;
}

/* Elementos de Texto */
blockquote {
    border-left: 4px solid var(--accent-color);
    padding: 15px;
    margin: 20px 0;
    background-color: rgba(155, 89, 182, 0.05);
}

blockquote footer {
    margin-top: 10px;
    font-style: italic;
    text-align: right;
}

.intro-text {
    margin: 40px 0;
}

/* Estilo das Seções de Conteúdo */
.content-section {
    background-color: white;
    border-radius: 8px;
    padding: 25px;
    margin-bottom: 30px;
    box-shadow: var(--card-shadow);
}

.content-section:last-child {
    margin-bottom: 0;
}

.content-section h2 {
    color: var(--primary-color);
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--accent-color);
}

/* Elementos para Diálogos */
.dialogue {
    margin: 20px 0;
    border-radius: 8px;
    overflow: hidden;
}

.dialogue-entry {
    padding: 15px;
    margin-bottom: 10px;
    background-color: rgba(155, 89, 182, 0.05);
    border-left: 4px solid var(--accent-color);
}

.speaker {
    font-weight: bold;
    margin-bottom: 5px;
    color: var(--primary-color);
}

.dialogue-text {
    margin-bottom: 10px;
}

.approximation {
    font-style: italic;
    border-top: 1px dashed #ddd;
    padding-top: 10px;
    margin-top: 10px;
    color: #666;
}

.symbol-text {
    font-family: 'Arial Unicode MS', Arial, sans-serif;
    font-size: 1.2rem;
    margin: 10px 0;
    letter-spacing: 5px;
}

/* Componentes Específicos para Capítulos */
.chapter-navigation {
    display: flex;
    justify-content: space-between;
    margin: 20px 0;
}

.nav-prev, .nav-next {
    display: inline-flex;
    align-items: center;
    padding: 10px 15px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 5px;
    transition: background-color 0.3s;
}

.nav-prev:hover, .nav-next:hover {
    background-color: var(--secondary-color);
}

.nav-prev i {
    margin-right: 5px;
}

.nav-next i {
    margin-left: 5px;
}

/* Responsividade */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        z-index: 100;
    }
    
    .content {
        margin-left: 0;
    }
    
    #sidebar-toggle {
        display: block;
    }
    
    .sidebar-visible {
        transform: translateX(0);
    }
    
    .content-with-sidebar {
        margin-left: 0;
    }
}

/* Classes para Termos do Glossário */
.term {
    margin-bottom: 25px;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
}

.term:last-child {
    border-bottom: none;
}

.term h3 {
    color: var(--primary-color);
    margin-bottom: 10px;
}

.term-category {
    display: inline-block;
    background-color: var(--accent-color);
    color: white;
    padding: 3px 8px;
    border-radius: 3px;
    font-size: 0.8rem;
    margin-bottom: 10px;
}

.term-description {
    margin-bottom: 10px;
}

.term-examples {
    background-color: rgba(155, 89, 182, 0.05);
    padding: 10px;
    border-radius: 5px;
    font-style: italic;
}