/* Reset e Variáveis */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Cores principais */
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --secondary-color: #64748b;
    --accent-color: #f59e0b;
    
    /* Cores de fundo */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-overlay: rgba(0, 0, 0, 0.5);
    
    /* Cores de texto */
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    
    /* Bordas */
    --border-color: #e2e8f0;
    --border-radius: 8px;
    --border-radius-lg: 12px;
    
    /* Sombras */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    
    /* Espaçamentos */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    
    /* Fonte */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-base: 16px;
}

/* Tema escuro */
[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #64748b;
    --border-color: #334155;
}

/* Base */
html {
    font-size: var(--font-size-base);
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Container principal */
.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 600;
    font-size: 1.125rem;
    color: var(--primary-color);
}

.logo i {
    font-size: 1.5rem;
}

.header-actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* Botões */
.btn-icon {
    background: none;
    border: none;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
}

.btn-icon:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.btn-primary:hover {
    background: var(--primary-hover);
}

.btn-nav {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
}

.btn-nav:hover:not(:disabled) {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.btn-nav:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Painéis */
.search-panel,
.settings-panel {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-lg);
    display: none;
    animation: slideDown 0.3s ease;
}

.search-panel.active,
.settings-panel.active {
    display: block;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.search-content,
.settings-content {
    max-width: 1400px;
    margin: 0 auto;
}

.search-box {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.search-box input {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    background: var(--bg-primary);
    color: var(--text-primary);
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.search-box button {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
}

.search-filters {
    display: flex;
    gap: var(--spacing-md);
}

.search-filters select,
.settings-content select {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--bg-primary);
    color: var(--text-primary);
    min-width: 150px;
}

/* Configurações */
.settings-content h3 {
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.setting-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--border-color);
}

.setting-item:last-child {
    border-bottom: none;
}

.setting-item label {
    font-weight: 500;
    color: var(--text-primary);
}

/* Main Content */
.main-content {
    display: flex;
    flex: 1;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

/* Sidebar */
.sidebar {
    width: 300px;
    background: var(--bg-primary);
    border-right: 1px solid var(--border-color);
    padding: var(--spacing-lg);
    overflow-y: auto;
    height: calc(100vh - 80px);
}

.nav-section {
    margin-bottom: var(--spacing-xl);
}

.nav-section h3 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-md);
}

.testament-tabs {
    display: flex;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-lg);
}

.tab-btn {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.875rem;
    font-weight: 500;
}

.tab-btn.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.books-list,
.chapters-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    max-height: 400px;
    overflow-y: auto;
}

.book-item,
.chapter-item {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-secondary);
    border: 1px solid transparent;
    border-radius: var(--border-radius);
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.875rem;
}

.book-item:hover,
.chapter-item:hover {
    background: var(--bg-tertiary);
    border-color: var(--border-color);
}

.book-item.active,
.chapter-item.active {
    background: var(--primary-color);
    color: white;
}

.chapter-item {
    font-weight: 500;
    text-align: center;
    min-width: 40px;
}

.chapters-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(40px, 1fr));
    gap: var(--spacing-xs);
    max-height: 200px;
}

/* Content Area */
.content-area {
    flex: 1;
    padding: var(--spacing-lg);
    overflow-y: auto;
    height: calc(100vh - 80px);
}

.breadcrumb {
    margin-bottom: var(--spacing-lg);
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.content-wrapper {
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    min-height: 600px;
}

/* Welcome Screen */
.welcome-screen {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 600px;
    padding: var(--spacing-xl);
}

.welcome-content {
    text-align: center;
    max-width: 400px;
}

.welcome-icon {
    font-size: 4rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-lg);
}

.welcome-content h2 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.welcome-content p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

/* Chapter Content */
.chapter-content {
    padding: var(--spacing-xl);
}

.chapter-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.chapter-header h1 {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--text-primary);
}

.chapter-nav {
    display: flex;
    gap: var(--spacing-sm);
}

/* Versículos */
.verses-container {
    line-height: 1.8;
}

.verse {
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    transition: all 0.2s ease;
    cursor: pointer;
}

.verse:hover {
    background: var(--bg-secondary);
}

.verse-number {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-right: var(--spacing-sm);
    min-width: 24px;
    text-align: center;
}

.verse-text {
    font-size: calc(var(--font-size-base) * 1rem);
    color: var(--text-primary);
}

/* Search Results */
.search-results {
    padding: var(--spacing-xl);
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.results-header h2 {
    font-size: 1.5rem;
    color: var(--text-primary);
}

.results-count {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.search-result {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: all 0.2s ease;
}

.search-result:hover {
    background: var(--bg-secondary);
}

.search-result:last-child {
    border-bottom: none;
}

.result-reference {
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
    font-size: 0.875rem;
}

.result-text {
    color: var(--text-primary);
    line-height: 1.6;
}

.result-text .highlight {
    background: var(--accent-color);
    color: #000;
    padding: 2px 4px;
    border-radius: 3px;
    font-weight: 500;
}

/* Loading */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
    color: var(--text-secondary);
}

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-overlay);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.loading-overlay.active {
    display: flex;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top: 4px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Scrollbar personalizada */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* Responsividade */
@media (max-width: 768px) {
    .main-content {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        height: auto;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
    
    .content-area {
        height: auto;
    }
    
    .header-content {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .logo span {
        display: none;
    }
    
    .search-filters {
        flex-direction: column;
    }
    
    .chapter-header {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
    
    .chapters-list {
        grid-template-columns: repeat(auto-fill, minmax(35px, 1fr));
    }
}

@media (max-width: 480px) {
    .content-wrapper {
        margin: 0;
        border-radius: 0;
    }
    
    .chapter-content,
    .search-results {
        padding: var(--spacing-md);
    }
    
    .welcome-screen {
        padding: var(--spacing-md);
        min-height: 400px;
    }
    
    .welcome-icon {
        font-size: 3rem;
    }
}