/* ==========================================================================
   HOJA DE ESTILO MAESTRA: ClubSaludconNutricion.com
   MÓDULO: Anatomía y Fisiología Humana de Precisión
   DIRECCIÓN TÉCNICA: Dentrix 1.0 — 2026
   ========================================================================== */

/* --- CONFIGURACIÓN DE VARIABLES Y SISTEMA DE COLOR (PROTOCOLO CLÍNICO) --- */
:root {
    /* Paleta Principal: Sanidad y Anatomía */
    --medical-primary: #0f172a;    /* Azul pizarra profundo (Texto y cabeceras) */
    --medical-accent: #0284c7;     /* Azul quirúrgico / Clínico */
    --medical-accent-rgb: 2, 132, 199;
    --organ-hepatic: #991b1b;      /* Rojo hepático/arterial para elementos anatómicos */
    --organ-hepatic-light: #fef2f2;/* Fondo sutil de énfasis anatómico */
    
    /* Fondos y Estructura */
    --bg-canvas: #f8fafc;          /* Fondo gris pizarra sutil de fondo */
    --bg-card: #ffffff;            /* Fondo de contenedores puros */
    --border-clean: #e2e8f0;       /* Líneas de división gerenciales */
    --text-main: #334155;          /* Gris oscuro de alta lectura para el cuerpo */
    --text-muted: #64748b;         /* Gris de soporte e indicaciones secundarias */
    
    /* Tipografía y Espaciados */
    --font-core: 'Inter', system-ui, -apple-system, sans-serif;
    --radius-md: 12px;
    --radius-sm: 8px;
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-subtle: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-hover: 0 10px 15px -3px rgba(2, 132, 199, 0.08), 0 4px 6px -2px rgba(2, 132, 199, 0.03);
}

/* --- MODO NOCHE NATIVO (.dark-mode) --- */
body.dark-mode {
    --medical-primary: #f1f5f9;
    --medical-accent: #38bdf8;
    --medical-accent-rgb: 56, 189, 248;
    --organ-hepatic: #f87171;
    --organ-hepatic-light: #451a03;
    --bg-canvas: #0f172a;
    --bg-card: #1e293b;
    --border-clean: #334155;
    --text-main: #cbd5e1;
    --text-muted: #94a3b8;
}

/* --- RESET Y REGLAS DE NAVEGADOR --- */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-core);
    background-color: var(--bg-canvas);
    color: var(--text-main);
    line-height: 1.7;
    padding-bottom: 60px;
    transition: var(--transition-smooth);
    -webkit-font-smoothing: antialiased;
}

/* --- MAQUETACIÓN CONTENEDORA --- */
.container-club {
    width: 100%;
    max-width: 960px;
    margin: 0 auto;
    padding: 0 24px;
}

/* --- CABECERA EDITORIAL Y DEPARTAMENTAL --- */
.header-anatomy {
    padding: 60px 0 40px 0;
    text-align: center;
    border-bottom: 1px solid var(--border-clean);
    margin-bottom: 40px;
}

.badge-departamento {
    display: inline-block;
    padding: 6px 14px;
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--medical-accent);
    background-color: rgba(var(--medical-accent-rgb), 0.1);
    border-radius: 20px;
    margin-bottom: 16px;
}

.header-anatomy h1 {
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--medical-primary);
    line-height: 1.2;
    margin-bottom: 12px;
}

.header-anatomy .meta-subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* --- ESTRUCTURA DE ARTÍCULO / CONTENIDO EDICIÓN --- */
.article-body {
    background-color: var(--bg-card);
    border: 1px solid var(--border-clean);
    border-radius: var(--radius-md);
    padding: 40px;
    box-shadow: var(--shadow-subtle);
    margin-bottom: 40px;
}

/* Jerarquía de Títulos Internos */
.article-body h2 {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--medical-primary);
    margin-top: 35px;
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 10px;
    border-left: 4px solid var(--organ-hepatic);
    padding-left: 12px;
}

.article-body h2:first-of-type {
    margin-top: 0;
}

.article-body h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--medical-primary);
    margin-top: 25px;
    margin-bottom: 12px;
}

.article-body p {
    margin-bottom: 20px;
    font-size: 1.05rem;
    color: var(--text-main);
}

/* --- CAJAS DE ENFOQUE ANATÓMICO (DESTACADOS) --- */
.box-focus-clinical {
    background-color: var(--organ-hepatic-light);
    border-left: 4px solid var(--organ-hepatic);
    padding: 24px;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    margin: 30px 0;
}

.box-focus-clinical h4 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--organ-hepatic);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* --- RECURSOS EDUCATIVOS: LISTAS Y PASOS --- */
.article-body ul, .article-body ol {
    padding-left: 24px;
    margin-bottom: 24px;
}

.article-body li {
    margin-bottom: 10px;
    font-size: 1.05rem;
}

/* Listas estilizadas para Anatomía con marcadores dinámicos */
.list-medical-points {
    list-style: none;
    padding-left: 0 !important;
}

.list-medical-points li {
    position: relative;
    padding-left: 28px;
    margin-bottom: 14px;
}

.list-medical-points li::before {
    content: "🧬";
    position: absolute;
    left: 0;
    top: 2px;
    font-size: 1.1rem;
}

/* --- REJILLAS MULTI-COLUMNA PARA ÍNDICES O CARACTERÍSTICAS --- */
.grid-features-anatomy {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 20px;
    margin: 30px 0;
}

.feature-anatomy-card {
    background: var(--bg-canvas);
    border: 1px solid var(--border-clean);
    border-radius: var(--radius-sm);
    padding: 20px;
    transition: var(--transition-smooth);
}

.feature-anatomy-card:hover {
    transform: translateY(-2px);
    border-color: var(--medical-accent);
    box-shadow: var(--shadow-hover);
}

/* --- FICHA TÉCNICA DEL ÓRGANO (COMPACT DATA CARD) --- */
.organ-data-sheet {
    border: 1px solid var(--border-clean);
    border-radius: var(--radius-md);
    overflow: hidden;
    margin: 35px 0;
}

.organ-data-sheet .sheet-title {
    background-color: var(--medical-primary);
    color: #ffffff;
    padding: 14px 20px;
    font-weight: 700;
    font-size: 1.1rem;
}

.organ-data-row {
    display: flex;
    border-bottom: 1px solid var(--border-clean);
    background-color: var(--bg-card);
}

.organ-data-row:last-child {
    border-bottom: none;
}

.organ-data-label {
    flex: 0 0 200px;
    padding: 12px 20px;
    font-weight: 700;
    background-color: rgba(var(--medical-accent-rgb), 0.03);
    color: var(--medical-primary);
    border-right: 1px solid var(--border-clean);
}

.organ-data-value {
    flex: 1;
    padding: 12px 20px;
}

/* --- NAVEGACIÓN ENTRE ARTÍCULOS (PASARELA FORMATIVA) --- */
.navigation-course-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 50px;
    padding-top: 30px;
    border-top: 1px solid var(--border-clean);
    gap: 16px;
}

.course-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition-smooth);
}

.course-btn-prev {
    color: var(--text-muted);
    border: 1px solid var(--border-clean);
}

.course-btn-prev:hover {
    background-color: var(--border-clean);
    color: var(--medical-primary);
}

.course-btn-next {
    background-color: var(--medical-accent);
    color: #ffffff;
    border: 1px solid transparent;
}

.course-btn-next:hover {
    background-color: #0274be;
    box-shadow: 0 4px 12px rgba(2, 132, 199, 0.25);
}

/* --- PIE DE PÁGINA EDITORIAL --- */
.footer-editorial {
    text-align: center;
    padding: 40px 0;
    color: var(--text-muted);
    font-size: 0.85rem;
    border-top: 1px solid var(--border-clean);
}

/* --- RESPONSIVIDAD (BREAKPOINTS INTELIGENTES) --- */
@media (max-width: 768px) {
    .header-anatomy h1 {
        font-size: 2rem;
    }
    
    .article-body {
        padding: 24px;
    }
    
    .organ-data-row {
        flex-direction: column;
    }
    
    .organ-data-label {
        flex: none;
        border-right: none;
        border-bottom: 1px solid var(--border-clean);
        padding: 8px 16px;
    }
    
    .organ-data-value {
        padding: 10px 16px;
    }
    
    .navigation-course-bar {
        flex-direction: column;
        width: 100%;
    }
    
    .course-btn {
        width: 100%;
        justify-content: center;
    }
}