/* ==========================================================================
   Design System Integrativia KB - CSS Customizado (Vanilla CSS)
   ========================================================================== */

/* 1. Importação da Fonte Inter do Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* 2. Definição de Variáveis e Temas (Light / Dark Mode automático) */
:root {
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    
    /* Paleta de Cores - Modo Claro (Default) */
    --color-bg-primary: #f8fafc;        /* Slate 50 */
    --color-bg-card: #ffffff;
    --color-bg-sidebar: #0f172a;       /* Slate 900 */
    --color-bg-header: rgba(255, 255, 255, 0.8);
    
    --color-text-primary: #0f172a;      /* Slate 900 */
    --color-text-secondary: #334155;    /* Slate 700 */
    --color-text-muted: #64748b;        /* Slate 500 */
    --color-text-sidebar: #cbd5e1;      /* Slate 300 */
    
    --color-primary: #076e58;           /* Teal Clínico */
    --color-primary-hover: #055242;
    --color-primary-light: #e6f4f1;
    
    --color-border: #e2e8f0;            /* Slate 200 */
    --color-border-sidebar: #1e293b;    /* Slate 800 */
    --color-shadow: rgba(0, 0, 0, 0.04);
    
    --color-code-bg: #f1f5f9;           /* Slate 100 */
    --color-code-text: #0f172a;
    --color-quote-border: #0d9488;
    --color-quote-bg: #f0fdfa;
    
    /* Outras configurações */
    --max-content-width: 900px;
    --header-height: 64px;
    --sidebar-width: 280px;
    --transition-speed: 0.2s;
}

/* Modo Escuro Nativo */
@media (prefers-color-scheme: dark) {
    :root {
        --color-bg-primary: #0b0f19;
        --color-bg-card: #131b2e;
        --color-bg-sidebar: #080d16;
        --color-bg-header: rgba(19, 27, 46, 0.8);
        
        --color-text-primary: #f8fafc;
        --color-text-secondary: #cbd5e1;
        --color-text-muted: #64748b;
        --color-text-sidebar: #94a3b8;
        
        --color-primary: #1cc49a;       /* Teal Vibrante no Dark */
        --color-primary-hover: #14a07d;
        --color-primary-light: #0d2724;
        
        --color-border: #1e293b;
        --color-border-sidebar: #111827;
        --color-shadow: rgba(0, 0, 0, 0.2);
        
        --color-code-bg: #1e293b;
        --color-code-text: #f8fafc;
        --color-quote-border: #14b8a6;
        --color-quote-bg: #071e1d;
    }
}

/* 3. Estilos Globais e Reset */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    height: 100%;
    font-family: var(--font-primary);
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    scroll-behavior: smooth;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-speed) ease;
}

a:hover {
    color: var(--color-primary-hover);
    text-decoration: underline;
}

/* 4. Estrutura do Layout Principal */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* 4.1 Barra Lateral (Sidebar) */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--color-bg-sidebar);
    color: var(--color-text-sidebar);
    border-right: 1px solid var(--color-border-sidebar);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 100;
}

.sidebar-header {
    padding: 24px;
    border-bottom: 1px solid var(--color-border-sidebar);
    display: flex;
    align-items: center;
    gap: 12px;
}

.sidebar-logo {
    font-weight: 700;
    font-size: 1.25rem;
    color: #ffffff;
    letter-spacing: -0.025em;
    display: flex;
    align-items: center;
    gap: 8px;
}

.sidebar-logo span {
    color: var(--color-primary);
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: 20px 16px;
}

.sidebar-section-title {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    margin-bottom: 12px;
    padding-left: 12px;
}

.nav-list {
    list-style: none;
}

.nav-item {
    margin-bottom: 4px;
}

.nav-link {
    display: flex;
    align-items: center;
    padding: 10px 12px;
    border-radius: 8px;
    font-size: 0.925rem;
    font-weight: 500;
    color: var(--color-text-sidebar);
    transition: all var(--transition-speed) ease;
}

.nav-link:hover {
    background-color: var(--color-border-sidebar);
    color: #ffffff;
    text-decoration: none;
}

.nav-link.active {
    background-color: var(--color-primary);
    color: #ffffff;
}

/* 4.2 Conteúdo Principal */
.main-wrapper {
    flex: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    min-width: 0; /* Impede quebra de layout com elementos longos */
}

/* Cabeçalho superior (Header) */
.main-header {
    height: var(--header-height);
    background-color: var(--color-bg-header);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 40px;
    position: sticky;
    top: 0;
    z-index: 90;
}

.breadcrumb-nav {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.breadcrumb-nav a {
    color: var(--color-text-muted);
}

.breadcrumb-nav a:hover {
    color: var(--color-primary);
}

.breadcrumb-separator {
    margin: 0 8px;
}

.content-container {
    flex: 1;
    padding: 40px;
    display: flex;
    justify-content: center;
}

.content-inner {
    width: 100%;
    max-width: var(--max-content-width);
}

/* 5. Renderização do Artigo (Markdown) */
.markdown-body {
    font-size: 1.05rem;
    line-height: 1.75;
    color: var(--color-text-secondary);
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4 {
    color: var(--color-text-primary);
    font-weight: 700;
    margin-top: 2rem;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.markdown-body h1 {
    font-size: 2.25rem;
    border-bottom: 2px solid var(--color-border);
    padding-bottom: 0.5rem;
    margin-top: 0;
}

.markdown-body h2 {
    font-size: 1.65rem;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 0.4rem;
}

.markdown-body h3 {
    font-size: 1.3rem;
}

.markdown-body p {
    margin-bottom: 1.5rem;
}

.markdown-body ul, 
.markdown-body ol {
    margin-bottom: 1.5rem;
    padding-left: 2rem;
}

.markdown-body li {
    margin-bottom: 0.5rem;
}

.markdown-body hr {
    border: 0;
    height: 1px;
    background: var(--color-border);
    margin: 3rem 0;
}

/* Tabelas Científicas */
.markdown-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 2rem 0;
    font-size: 0.95rem;
    box-shadow: 0 4px 6px -1px var(--color-shadow);
    border-radius: 8px;
    overflow: hidden;
}

.markdown-body th,
.markdown-body td {
    padding: 14px 18px;
    border: 1px solid var(--color-border);
    text-align: left;
}

.markdown-body th {
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    font-weight: 600;
}

.markdown-body tr:nth-child(even) {
    background-color: var(--color-bg-card);
}

.markdown-body tr:nth-child(odd) {
    background-color: var(--color-bg-primary);
}

/* Citações e Alertas */
.markdown-body blockquote {
    padding: 16px 24px;
    background-color: var(--color-quote-bg);
    border-left: 4px solid var(--color-quote-border);
    color: var(--color-text-secondary);
    border-radius: 0 8px 8px 0;
    margin: 1.5rem 0;
}

.markdown-body blockquote p {
    margin-bottom: 0;
}

/* Código em Linha */
.markdown-body code {
    background-color: var(--color-code-bg);
    color: var(--color-primary);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
    font-size: 0.85em;
}

/* Blocos de Código e Diagramas Mermaid */
.markdown-body pre {
    background-color: var(--color-code-bg);
    color: var(--color-code-text);
    padding: 16px;
    border-radius: 8px;
    overflow-x: auto;
    margin: 1.5rem 0;
}

.markdown-body pre code {
    background-color: transparent;
    color: inherit;
    padding: 0;
    font-size: 0.9em;
}

/* Estilo do Mermaid */
.mermaid {
    background-color: #ffffff !important; /* Sempre fundo branco nos diagramas para contraste do SVG */
    padding: 20px;
    border-radius: 8px;
    border: 1px solid var(--color-border);
    margin: 2rem 0;
    display: flex;
    justify-content: center;
    box-shadow: 0 4px 6px -1px var(--color-shadow);
}

/* 6. Layout de Grid da Home (Temas) */
.theme-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
    margin-top: 2rem;
}

.theme-card {
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 4px 6px -1px var(--color-shadow);
    transition: all var(--transition-speed) ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 100%;
}

.theme-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05);
    border-color: var(--color-primary);
}

.theme-card-header {
    margin-bottom: 12px;
}

.theme-card-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 8px;
}

.theme-card-desc {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    line-height: 1.5;
}

.theme-card-footer {
    margin-top: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.85rem;
}

.theme-card-badge {
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    padding: 4px 10px;
    border-radius: 20px;
    font-weight: 500;
}

.theme-card-link {
    font-weight: 600;
    color: var(--color-primary);
}

/* 7. Lista de Artigos Associados */
.articles-box {
    margin-top: 3rem;
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 4px 6px -1px var(--color-shadow);
}

.articles-box-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.articles-list {
    list-style: none;
}

.article-list-item {
    border-bottom: 1px solid var(--color-border);
    padding: 14px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.article-list-link {
    font-weight: 500;
    color: var(--color-text-secondary);
}

.article-list-link:hover {
    color: var(--color-primary);
}

.article-pmid-badge {
    font-size: 0.75rem;
    background-color: var(--color-code-bg);
    color: var(--color-text-muted);
    padding: 2px 8px;
    border-radius: 4px;
    font-family: monospace;
}

/* 8. Responsividade */
@media (max-width: 992px) {
    .sidebar {
        display: none;
    }
    
    .main-wrapper {
        margin-left: 0;
    }
    
    .main-header {
        padding: 0 20px;
    }
    
    .content-container {
        padding: 20px;
    }
}