/* ESTILOS BIBLIOTECA - YONILIMAN GALVIS AGUIRRE 
   Fuente Principal: Trebuchet MS
*/

:root {
    --bg: #faf6ef;
    --bg2: #f2ebe0;
    --bg3: #e8dfd0;
    --ink: #1a1208;
    --ink2: #4a3a20;
    --gold: #b8860b;
    --accent: #c9a84c;
    --rust: #8b3a1a;
    --white: #ffffff;
    --font-sans: "Trebuchet MS", "Lucida Sans Unicode", "Lucida Grande", "Lucida Sans", Arial, sans-serif;
    --font-serif: 'Cormorant Garamond', serif;
    --font-title: 'Cinzel', serif;
}

* { box-sizing: border-box; }

body {
    background-color: var(--bg);
    color: var(--ink);
    font-family: var(--font-sans);
    margin: 0;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* --- HEADER --- */
header {
    text-align: center;
    border-bottom: 1px solid var(--bg3);
}

header h1 {
    font-family: var(--font-title);
    font-size: 3rem;
    margin: 0;
    letter-spacing: 4px;
    color: var(--ink);
}

/* --- FILTROS --- */
.filter-bar {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.filter-btn {
    background: var(--white);
    border: 1px solid var(--bg3);
    padding: 8px 20px;
    border-radius: 25px;
    cursor: pointer;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    transition: all 0.3s ease;
    color: var(--ink2);
}

.filter-btn:hover, .filter-btn.active {
    background: var(--gold);
    color: var(--white);
    border-color: var(--gold);
    box-shadow: 0 4px 12px rgba(184, 134, 11, 0.2);
}

/* --- GRID DE LIBROS --- */
.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2.5rem;
    padding: 3rem 2rem;
    max-width: 1300px;
    margin: 0 auto;
}

/* --- TARJETA (CARD) --- */
.book-card {
    background: var(--white);
    border-radius: 15px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.3s ease;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    border: 1px solid rgba(0,0,0,0.03);
}

.book-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 20px 40px rgba(26,18,8,0.12);
}

/* Portada de la Card */
.book-cover {
    height: 220px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    position: relative;
    background: linear-gradient(135deg, #f2ebe0 0%, #e8dfd0 100%);
}

.cover-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--rust);
    color: var(--white);
    font-size: 0.65rem;
    font-weight: bold;
    padding: 4px 10px;
    border-radius: 4px;
    text-transform: uppercase;
}

.cover-series {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--gold);
    font-weight: bold;
}

.cover-book-title {
    font-family: var(--font-title);
    font-size: 1.6rem;
    line-height: 1.2;
    margin-top: 8px;
    color: var(--ink);
}

/* Estilo DARK para Ensayos */
.book-card.dark {
    background: #1a1208;
}

.book-card.dark .book-cover {
    background: linear-gradient(135deg, #1a1208 0%, #2a1f0d 100%);
    border-bottom: 1px solid #3a2a18;
}

.book-card.dark .cover-book-title { color: var(--bg); }
.book-card.dark .card-title { color: var(--accent); }
.book-card.dark .card-excerpt { color: #9a8a70; }

/* Cuerpo de la Card */
.card-body {
    padding: 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.card-title {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 0.8rem;
    color: var(--ink);
}

.card-excerpt {
    font-size: 0.95rem;
    color: var(--ink2);
    margin-bottom: 1.5rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-read-btn {
    margin-top: auto;
    background: transparent;
    border: 1px solid var(--gold);
    color: var(--gold);
    padding: 12px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: bold;
    transition: 0.3s;
}

.card-read-btn:hover {
    background: var(--gold);
    color: var(--white);
}

/* --- LECTOR (MODAL) --- */
#overlay {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(10, 8, 5, 0.95);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    backdrop-filter: blur(8px);
}

#overlay.open { display: flex; }

.reader-container {
    background: var(--bg);
    width: 95%;
    max-width: 850px;
    height: 90vh;
    border-radius: 12px;
    position: relative;
    padding: 4rem 3rem;
    overflow-y: auto;
    box-shadow: 0 25px 50px rgba(0,0,0,0.5);
}

.close-reader {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    font-size: 2.5rem;
    background: none;
    border: none;
    color: var(--ink);
    cursor: pointer;
    line-height: 1;
}

/* Estilos de Contenido Markdown dentro del Lector */
.reader-body {
    font-size: 1.15rem;
    color: var(--ink2);
    max-width: 700px;
    margin: 0 auto;
}

.reader-body h1, .reader-body h2, .reader-body h3 {
    font-family: var(--font-title);
    color: var(--ink);
    margin-top: 2.5rem;
}

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

.reader-body blockquote {
    border-left: 4px solid var(--gold);
    background: var(--bg2);
    padding: 1.5rem;
    margin: 2rem 0;
    font-style: italic;
    border-radius: 0 8px 8px 0;
}

.reader-body blockquote h4 {
    margin-top: 0;
    color: var(--gold);
    font-size: 0.9rem;
    letter-spacing: 1px;
}

.reader-body ul {
    margin-bottom: 1.5rem;
}

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

/* Responsivo */
@media (max-width: 768px) {
    .reader-container { padding: 2.5rem 1.5rem; }
    h1 { font-size: 2rem; }
    .books-grid { padding: 1rem; }
}

/* --- NAVEGACIÓN CORREGIDA --- */

/* Contenedor principal del Nav */
.bib-nav {
    display: flex;
    justify-content: space-between; /* Logo a la izq, el resto a la derecha */
    align-items: center;
    padding: 1rem 2rem;
    background-color: var(--bg);
    border-bottom: 1px solid var(--bg3);
    position: sticky;
    top: 0;
    z-index: 1000;
}

/* Grupo de la derecha: Idioma y Botón Menú */
.bib-nav-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Estilos del Logo */
.bib-nav-logo {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    text-decoration: none;
    font-family: var(--font-title);
    color: var(--ink);
    font-weight: bold;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 2px;
}

.bib-nav-logo img {
    width: 28px;
    height: auto;
}

/* Links en escritorio */
.bib-nav-links {
    display: flex;
    gap: 1.5rem;
}

.bib-nav-links a {
    text-decoration: none;
    color: var(--ink2);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: color 0.3s;
}

.bib-nav-links a:hover, .bib-nav-links a.active {
    color: var(--gold);
}

/* Botón Hamburguesa (oculto en escritorio) */
.bib-nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.bib-nav-toggle span {
    width: 25px;
    height: 2px;
    background-color: var(--ink);
    transition: 0.3s;
}

/* --- RESPONSIVO (MÓVIL Y TABLET) --- */

@media (max-width: 1100px) {
    .bib-nav-toggle {
        display: flex; /* Mostramos el botón de menú */
    }

    /* El panel donde viven los links */
    .bib-nav-panel {
        position: absolute;
        top: 100%; /* Justo debajo del nav */
        left: 0;
        right: 0;
        background: var(--bg);
        border-bottom: 1px solid var(--bg3);
        overflow: hidden;
        max-height: 0; /* Cerrado por defecto */
        transition: max-height 0.4s ease-out;
    }

    .bib-nav-links {
        display: flex;
        flex-direction: column;
        padding: 2rem;
        gap: 1rem;
        text-align: center;
    }

    /* Clase que activa el JS para abrir el menú */
    .bib-nav-links.open {
        display: flex;
    }

    /* Si usas el max-height para la animación */
    .bib-nav-panel.open {
        max-height: 500px;
        box-shadow: 0 10px 20px rgba(0,0,0,0.05);
    }

    /* Ocultar texto del logo en pantallas muy pequeñas si es necesario */
    @media (max-width: 450px) {
        .bib-nav-logo span {
            display: none;
        }
    }
}

/* Ajuste fino para el Selector de Idioma dentro del Nav */
.lang-container-nav .lang-menu {
    padding: 6px 10px;
    font-size: 0.75rem;
    border-radius: 6px;
    border: 1px solid var(--bg3);
    background: var(--white);
    font-family: var(--font-sans);
    color: var(--ink2);
}

/* Animación del botón hamburguesa a "X" */
.bib-nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.bib-nav-toggle.open span:nth-child(2) { opacity: 0; }
.bib-nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }