/* Importar fuentes de Google Fonts: Playfair Display (encabezados) y Lora (cuerpo) */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;700&family=Lora:wght@400;600&display=swap');

/* Variables de color (Fondo Gris, Acabado Terracota) */
:root {
    --color-background-light: #f0f0f0; 
    --color-background-paper: #ffffff; 
    --color-text-dark: #333333; 
    --color-text-light: #6a6a6a; 
    --color-accent-terracotta: #a66a50; 
    --color-border-subtle: #e0d8cf; 
    --color-background-soft: #fcfcfc; 
}

/* Reset y Estilos Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Lora', serif;
    color: var(--color-text-dark);
    background-color: var(--color-background-light);
    line-height: 1.6;
    min-height: 100vh;
}

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

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Contenedor Principal (El 'Papel' Central) */
.page-wrapper {
    max-width: 1000px;
    margin: 40px auto;
    background-color: var(--color-background-paper);
    border: 1px solid var(--color-border-subtle);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    padding-bottom: 0; 
}

.content-container {
    padding: 0 40px;
}

/* --- TIPOGRAFÍA GENERAL ACTUALIZADA --- */
/* Mantenemos h3 y añadimos las nuevas clases para SEO */
.site-title-branding, .main-book-title, h3 {
    font-family: 'Playfair Display', serif;
    text-align: center;
    margin-bottom: 0.2em;
    color: var(--color-text-dark);
}

/* Antes h1, ahora branding del sitio */
.site-title-branding { 
    font-size: 1.5rem; 
} 

/* Antes h2, ahora es el H1 principal del libro para Google */
.main-book-title { 
    font-size: 2.8rem; 
    margin-top: 0; 
    margin-bottom: 0; 
    font-weight: 700;
} 

h3 { font-size: 1.5rem; } 

.subtitle {
    text-align: center;
    color: var(--color-text-light);
    margin-bottom: 5px; 
    margin-top: 0; 
    font-size: 1.5rem; 
}

/* Contenedor para el título y subtítulo como enlace */
.book-title-link {
    text-decoration: none; 
    display: block; 
}

/* --- HOME PAGE (index.html) STYLES --- */

.site-header {
    text-align: center;
    padding-top: 40px;
    padding-bottom: 20px; 
    border-bottom: 1px solid var(--color-border-subtle); 
    background-color: var(--color-background-soft); 
    padding-left: 40px;
    padding-right: 40px;
}

/* Estilo específico para la identidad del sitio */
.site-header .site-title-branding {
    font-weight: 400;
    letter-spacing: 0.3em;
    margin: 0; 
}

.chapter-author {
    font-family: 'Lora', serif;
    font-size: 1.0rem;
    color: var(--color-text-light); 
    font-style: italic;
    text-align: center; 
    margin-bottom: 30px; 
    margin-top: 0;
}

/* NAVEGACIÓN PRINCIPAL */
.main-nav {
    margin-bottom: 0; 
}

.main-nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    border-top: 1px solid var(--color-border-subtle);
    border-bottom: 1px solid var(--color-border-subtle);
    padding: 0 40px; 
    background-color: var(--color-background-paper);
    margin-top: 0; 
}

.main-nav li a {
    display: block;
    padding: 10px 25px 15px; 
    color: var(--color-text-light);
    font-family: 'Playfair Display', serif;
    text-transform: uppercase;
    font-size: 0.9rem;
    transition: color 0.3s;
}

.main-nav li a:hover {
    color: var(--color-accent-terracotta);
}

.main-nav li a.active {
    color: var(--color-accent-terracotta);
    border-bottom: 2px solid var(--color-accent-terracotta);
    padding-bottom: 13px;
}

/* Home - Sección Principal */
.hero-section {
    padding-top: 30px; 
    padding-bottom: 60px; 
}

.latest-chapter {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: flex-start; 
    margin-top: 30px; 
}

.illustration-box {
    border: 1px solid var(--color-border-subtle);
    padding: 5px;
    background-color: #fcfcfc;
}

.illustration-box img:not(:last-child) {
    margin-bottom: 20px; 
}

.chapter-info {
    text-align: left;
}

.chapter-info h3 {
    text-align: left;
    font-size: 1.5rem; 
    margin-bottom: 15px; 
}

.chapter-info .excerpt {
    margin-bottom: 0;
    color: var(--color-text-dark);
    text-align: justify; 
}

.chapter-info .excerpt p {
    margin-bottom: 1em; 
    font-size: 1.05rem; 
}

.chapter-info .excerpt ol {
    margin-top: 1em;
    margin-left: 20px;
    padding-left: 0;
}

.chapter-info .excerpt ol li {
    margin-bottom: 0.5em;
    font-size: 1.05rem;
    text-align: justify; 
}

/* --- SECCIÓN: EPÍLOGO DE AUDIO --- */
.audio-epilogue {
    text-align: center; 
    padding: 30px 40px;
    margin: 40px 0; 
    background-color: var(--color-background-soft); 
    border-top: 1px solid var(--color-border-subtle);
    border-bottom: 1px solid var(--color-border-subtle);
}

.audio-epilogue p {
    margin-bottom: 15px;
    font-style: italic;
    color: var(--color-text-light);
}

.audio-epilogue audio {
    width: 100%; 
    max-width: 600px; 
}

/* --- SECCIÓN: NAVEGACIÓN DE CAPÍTULOS --- */
.chapter-navigation {
    padding: 20px 40px;
    background-color: var(--color-background-soft);
    border-top: 1px solid var(--color-border-subtle);
    border-bottom: 1px solid var(--color-border-subtle);
}

.nav-links-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-link {
    color: var(--color-text-light); 
    font-family: 'Playfair Display', serif;
    font-size: 1.1rem;
    padding: 5px 10px;
    transition: color 0.3s;
}

.nav-link:hover:not(.disabled) {
    color: var(--color-accent-terracotta); 
}

.nav-link.disabled {
    color: #cccccc; 
    cursor: default;
    pointer-events: none; 
}

.nav-link i {
    font-size: 0.9em; 
    margin: 0 5px;
}

/* --- SECCIÓN DE CONTACTO/REDES SOCIALES --- */
.social-contact {
    text-align: center;
    padding: 40px 0;
    margin-top: 0; 
    border-bottom: 1px solid var(--color-border-subtle);
    background-color: #fcfcfc; 
}

.social-contact h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
}

.social-links {
    margin: 10px 0;
}

.social-links a {
    margin: 0 12px; 
    color: var(--color-text-light);
    font-size: 1.8rem; 
    transition: color 0.3s;
}

.social-links a:hover {
    color: var(--color-accent-terracotta);
}

/* --- PIE DE PÁGINA --- */
.site-footer {
    text-align: center;
    padding: 20px 0; 
    color: var(--color-text-light);
    font-size: 0.85rem;
}

/* --- MARCADOR DE FIN DE CAPÍTULO --- */
.end-marker {
    text-align: center;
    font-family: 'Playfair Display', serif;
    font-size: 4rem; 
    color: var(--color-text-dark); 
    margin-top: 20px; 
    margin-bottom: 10px; 
    font-weight: 700;
    letter-spacing: 0.2em;
}

/* ================================================= */
/* === OPTIMIZACIÓN RESPONSIVA (SMARTPHONES) === */
/* ================================================= */

@media (max-width: 768px) {
    .page-wrapper {
        margin: 0; 
        border-left: none;
        border-right: none;
        box-shadow: none;
    }
    
    .content-container {
        padding: 0 20px;
    }
    
    .main-nav ul {
        flex-wrap: wrap;
        padding: 0;
    }

    .main-nav li a {
        padding: 10px 10px 15px;
        font-size: 0.8rem; 
    }
    
    .latest-chapter {
        grid-template-columns: 1fr; 
        gap: 30px; 
    }

    .illustration-box {
        order: 1; 
    }
    
    .chapter-info {
        order: 2; 
    }
    
    /* Cambio aquí de h2 a .main-book-title */
    .main-book-title {
        font-size: 2.2rem; 
    }

    .subtitle {
        font-size: 1.3rem;
    }

    .chapter-info h3 {
        font-size: 1.4rem; 
        text-align: center; 
    }
    
    .chapter-navigation {
        padding: 15px 20px; 
    }
    
    .nav-link {
        font-size: 1rem;
    }
    
    .social-contact {
        padding: 30px 0;
    }
    
    .social-contact h3 {
        font-size: 1.5rem;
    }
    
    .end-marker {
        font-size: 3rem; 
        margin-top: 15px; 
    }
}