/**
 * LibrosGratis Pro - Estilos Adicionales Completos
 * 
 * @package LibrosGratis
 * @version 4.0.0
 */

/* ==========================================================================
   Variables Adicionales (Compatibilidad)
   ========================================================================== */
:root {
    --lg-shadow-hover: 0 8px 25px rgba(0,0,0,0.15);
}

/* ==========================================================================
   Header Completo
   ========================================================================== */
.lg-header-top-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.lg-header-top-right {
    display: flex;
    gap: 20px;
}

.lg-header-top-right a {
    color: rgba(255,255,255,0.8);
    font-size: 0.85rem;
}

.lg-header-top-right a:hover {
    color: white;
}

.lg-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
}

/* Navegación */
.lg-nav {
    display: flex;
    align-items: center;
}

.lg-nav-menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: var(--lg-spacing-xs);
}

.lg-nav-menu li {
    position: relative;
}

.lg-nav-menu > li > a {
    display: block;
    padding: var(--lg-spacing-xs) var(--lg-spacing-sm);
    color: var(--lg-text-dark);
    font-weight: 500;
    border-radius: var(--lg-radius-sm);
    transition: all var(--lg-transition);
}

.lg-nav-menu > li > a:hover,
.lg-nav-menu > li.current-menu-item > a {
    background: var(--lg-bg-paper);
    color: var(--lg-primary);
}

/* Submenú */
.lg-nav-menu .sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--lg-bg-white);
    box-shadow: var(--lg-shadow-hover);
    border-radius: var(--lg-radius-md);
    min-width: 220px;
    padding: var(--lg-spacing-xs) 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--lg-transition);
    list-style: none;
    z-index: 100;
}

.lg-nav-menu li:hover > .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lg-nav-menu .sub-menu a {
    display: block;
    padding: 10px 20px;
    color: var(--lg-text-dark);
}

.lg-nav-menu .sub-menu a:hover {
    background: var(--lg-bg-paper);
    color: var(--lg-primary);
}

/* Buscador header */
.lg-header-search {
    position: relative;
}

.lg-header-search input {
    padding: 10px 45px 10px 18px;
    border: 2px solid var(--lg-border);
    border-radius: var(--lg-radius-full);
    width: 280px;
    font-size: 0.9rem;
    transition: all var(--lg-transition);
    background: var(--lg-bg-paper);
}

.lg-header-search input:focus {
    border-color: var(--lg-primary);
    outline: none;
    width: 320px;
    background: var(--lg-bg-white);
}

.lg-header-search button {
    position: absolute;
    right: 5px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--lg-primary);
    border: none;
    color: white;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    cursor: pointer;
    transition: background var(--lg-transition);
}

.lg-header-search button:hover {
    background: var(--lg-primary-dark);
}

/* Menú móvil toggle */
.lg-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--lg-text-dark);
    padding: 8px;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.lg-hero {
    background: linear-gradient(135deg, var(--lg-secondary) 0%, #1a252f 100%);
    color: white;
    padding: var(--lg-spacing-2xl) 0;
    text-align: center;
}

.lg-hero h1 {
    color: white;
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: var(--lg-spacing-md);
}

.lg-hero p {
    font-size: 1.25rem;
    opacity: 0.9;
    max-width: 700px;
    margin: 0 auto var(--lg-spacing-lg);
}

.lg-hero-search {
    display: flex;
    max-width: 600px;
    margin: 0 auto;
    gap: 10px;
}

.lg-hero-search input {
    flex: 1;
    padding: 16px 24px;
    border: none;
    border-radius: var(--lg-radius-md);
    font-size: 1rem;
}

.lg-hero-search button {
    padding: 16px 32px;
    background: var(--lg-accent);
    color: var(--lg-secondary);
    border: none;
    border-radius: var(--lg-radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--lg-transition);
}

.lg-hero-search button:hover {
    background: var(--lg-accent-light);
}

.lg-hero-stats {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: var(--lg-spacing-xl);
}

.lg-hero-stats span {
    font-size: 0.95rem;
    opacity: 0.9;
}

.lg-hero-stats strong {
    color: var(--lg-accent);
    font-size: 1.5rem;
    display: block;
}

/* ==========================================================================
   Sections
   ========================================================================== */
.lg-section {
    padding: var(--lg-spacing-2xl) 0;
}

.lg-section-alt {
    background: var(--lg-bg-paper);
}

.lg-section-header {
    text-align: center;
    margin-bottom: var(--lg-spacing-xl);
}

.lg-section-header h2 {
    font-size: 2rem;
    margin-bottom: var(--lg-spacing-xs);
}

.lg-section-header p {
    color: var(--lg-text-medium);
    font-size: 1.1rem;
}

/* ==========================================================================
   ⭐ GRID DE LIBROS - ESTILOS CRÍTICOS
   ========================================================================== */
.lg-libros-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--lg-spacing-lg);
}

.lg-libro-card {
    background: var(--lg-bg-white);
    border-radius: var(--lg-radius-lg);
    overflow: hidden;
    box-shadow: var(--lg-shadow);
    transition: all var(--lg-transition);
    display: flex;
    flex-direction: column;
}

.lg-libro-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--lg-shadow-hover);
}

.lg-libro-cover {
    position: relative;
    aspect-ratio: 2/3;
    overflow: hidden;
    background: var(--lg-bg-paper);
}

.lg-libro-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--lg-transition);
}

.lg-libro-card:hover .lg-libro-cover img {
    transform: scale(1.05);
}

.lg-libro-cover-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, transparent 50%);
    opacity: 0;
    transition: opacity var(--lg-transition);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding: var(--lg-spacing-md);
}

.lg-libro-card:hover .lg-libro-cover-overlay {
    opacity: 1;
}

.lg-libro-cover-overlay .lg-btn {
    transform: translateY(20px);
    transition: transform var(--lg-transition);
}

.lg-libro-card:hover .lg-libro-cover-overlay .lg-btn {
    transform: translateY(0);
}

.lg-libro-formats {
    position: absolute;
    top: 10px;
    right: 10px;
    display: flex;
    gap: 4px;
}

.lg-libro-formats span {
    background: rgba(0,0,0,0.6);
    color: white;
    padding: 3px 8px;
    border-radius: var(--lg-radius-sm);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
}

.lg-libro-info {
    padding: var(--lg-spacing-md);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.lg-libro-genre {
    font-size: 0.75rem;
    color: var(--lg-primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 6px;
}

.lg-libro-card .lg-libro-title {
    font-family: var(--lg-font-heading);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 6px;
    line-height: 1.3;
    color: var(--lg-secondary);
}

.lg-libro-card .lg-libro-title a {
    color: inherit;
}

.lg-libro-card .lg-libro-title a:hover {
    color: var(--lg-primary);
}

.lg-libro-author {
    font-size: 0.875rem;
    color: var(--lg-text-medium);
    margin-bottom: var(--lg-spacing-sm);
}

.lg-libro-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
    padding-top: var(--lg-spacing-sm);
    border-top: 1px solid var(--lg-border);
}

.lg-libro-rating {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 0.875rem;
}

.lg-libro-rating i {
    color: var(--lg-accent);
}

.lg-libro-downloads {
    font-size: 0.8rem;
    color: var(--lg-text-light);
    display: flex;
    align-items: center;
    gap: 4px;
}

/* ==========================================================================
   Colecciones Grid
   ========================================================================== */
.lg-colecciones-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--lg-spacing-lg);
}

.lg-coleccion-card {
    position: relative;
    border-radius: var(--lg-radius-lg);
    overflow: hidden;
    aspect-ratio: 16/9;
    box-shadow: var(--lg-shadow);
}

.lg-coleccion-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--lg-transition);
}

.lg-coleccion-card:hover img {
    transform: scale(1.1);
}

.lg-coleccion-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, rgba(0,0,0,0.2) 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: var(--lg-spacing-lg);
    color: white;
}

.lg-coleccion-overlay h3 {
    color: white;
    font-size: 1.375rem;
    margin-bottom: 8px;
}

.lg-coleccion-overlay span {
    font-size: 0.875rem;
    opacity: 0.9;
}

/* ==========================================================================
   Géneros Grid
   ========================================================================== */
.lg-generos-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--lg-spacing-md);
}

.lg-genero-card {
    background: var(--lg-bg-white);
    border-radius: var(--lg-radius-lg);
    padding: var(--lg-spacing-lg);
    text-align: center;
    box-shadow: var(--lg-shadow);
    transition: all var(--lg-transition);
    color: var(--lg-text-dark);
    text-decoration: none;
}

.lg-genero-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--lg-shadow-hover);
    color: var(--lg-primary);
}

.lg-genero-card i {
    font-size: 2.5rem;
    color: var(--lg-primary);
    margin-bottom: var(--lg-spacing-sm);
    display: block;
}

.lg-genero-card h4 {
    font-size: 1.1rem;
    margin-bottom: 5px;
}

.lg-genero-card span {
    font-size: 0.85rem;
    color: var(--lg-text-light);
}

/* ==========================================================================
   Archive Header
   ========================================================================== */
.lg-archive-header {
    text-align: center;
    margin-bottom: var(--lg-spacing-xl);
    padding: var(--lg-spacing-xl);
    background: linear-gradient(135deg, var(--lg-secondary) 0%, #1a252f 100%);
    color: white;
    border-radius: var(--lg-radius-lg);
}

.lg-archive-title {
    font-size: 2.5rem;
    color: white;
    margin-bottom: var(--lg-spacing-xs);
}

.lg-archive-description {
    font-size: 1.1rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

/* ==========================================================================
   Filters Bar
   ========================================================================== */
.lg-filters-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--lg-spacing-md);
    background: var(--lg-bg-white);
    border-radius: var(--lg-radius-md);
    margin-bottom: var(--lg-spacing-lg);
    box-shadow: var(--lg-shadow);
}

.lg-results-count {
    font-weight: 500;
    color: var(--lg-text-medium);
}

.lg-filters-right {
    display: flex;
    align-items: center;
    gap: var(--lg-spacing-md);
}

.lg-orderby-select {
    padding: 10px 16px;
    border: 2px solid var(--lg-border);
    border-radius: var(--lg-radius-md);
    font-family: var(--lg-font-body);
    background: var(--lg-bg-white);
    cursor: pointer;
}

.lg-view-toggle {
    display: flex;
    gap: 5px;
}

.lg-view-btn {
    background: var(--lg-bg-paper);
    border: none;
    padding: 10px 14px;
    cursor: pointer;
    border-radius: var(--lg-radius-sm);
    color: var(--lg-text-light);
    transition: all var(--lg-transition);
}

.lg-view-btn:hover,
.lg-view-btn.active {
    background: var(--lg-primary);
    color: white;
}

/* ==========================================================================
   Advanced Search Form
   ========================================================================== */
.lg-search-form {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--lg-spacing-md);
    background: var(--lg-bg-white);
    padding: var(--lg-spacing-lg);
    border-radius: var(--lg-radius-lg);
    box-shadow: var(--lg-shadow);
    margin-bottom: var(--lg-spacing-xl);
}

.lg-search-form .lg-form-group {
    margin: 0;
}

.lg-search-form input,
.lg-search-form select {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--lg-border);
    border-radius: var(--lg-radius-md);
    font-size: 0.9375rem;
}

.lg-search-form input:focus,
.lg-search-form select:focus {
    border-color: var(--lg-primary);
    outline: none;
}

.lg-search-form button {
    grid-column: span 4;
}

/* ==========================================================================
   Widgets Sidebar
   ========================================================================== */
.lg-filter-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.lg-filter-list li {
    border-bottom: 1px solid var(--lg-border);
}

.lg-filter-list li:last-child {
    border-bottom: none;
}

.lg-filter-list a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--lg-spacing-xs) 0;
    color: var(--lg-text-dark);
}

.lg-filter-list a:hover,
.lg-filter-list li.active a {
    color: var(--lg-primary);
}

.lg-filter-list .count {
    background: var(--lg-bg-paper);
    padding: 2px 10px;
    border-radius: var(--lg-radius-full);
    font-size: 0.8rem;
    color: var(--lg-text-light);
}

/* ==========================================================================
   Efemérides Widget
   ========================================================================== */
.lg-efemerides-widget {
    background: linear-gradient(135deg, var(--lg-primary) 0%, var(--lg-primary-dark) 100%);
    color: var(--lg-text-white);
    border-radius: var(--lg-radius-lg);
    padding: var(--lg-spacing-lg);
}

.lg-efemerides-fecha {
    font-size: 0.875rem;
    opacity: 0.85;
    margin-bottom: var(--lg-spacing-xs);
}

.lg-efemerides-titulo {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--lg-spacing-sm);
    color: white;
}

.lg-efemerides-descripcion {
    font-size: 0.9375rem;
    line-height: 1.6;
    opacity: 0.95;
}

.lg-efemerides-full {
    display: flex;
    align-items: center;
    gap: var(--lg-spacing-lg);
    padding: var(--lg-spacing-xl);
}

.lg-efemerides-icon {
    font-size: 3rem;
    opacity: 0.5;
}

/* ==========================================================================
   Reviews
   ========================================================================== */
.lg-resenas-list {
    display: flex;
    flex-direction: column;
    gap: var(--lg-spacing-lg);
}

.lg-resena-card {
    background: var(--lg-bg-paper);
    border-radius: var(--lg-radius-md);
    padding: var(--lg-spacing-lg);
}

.lg-resena-header {
    display: flex;
    align-items: center;
    gap: var(--lg-spacing-md);
    margin-bottom: var(--lg-spacing-md);
}

.lg-resena-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
}

.lg-resena-author {
    font-weight: 600;
    margin-bottom: 4px;
}

.lg-resena-date {
    font-size: 0.8125rem;
    color: var(--lg-text-light);
}

.lg-resena-rating {
    margin-left: auto;
}

.lg-resena-content {
    line-height: 1.7;
    color: var(--lg-text-medium);
}

/* ==========================================================================
   No Results
   ========================================================================== */
.lg-no-results {
    text-align: center;
    padding: var(--lg-spacing-2xl);
    background: var(--lg-bg-paper);
    border-radius: var(--lg-radius-lg);
}

.lg-no-results i {
    font-size: 4rem;
    color: var(--lg-text-muted);
    margin-bottom: var(--lg-spacing-md);
}

.lg-no-results h2 {
    margin-bottom: var(--lg-spacing-sm);
    color: var(--lg-secondary);
}

.lg-no-results p {
    color: var(--lg-text-medium);
    margin-bottom: var(--lg-spacing-lg);
}

/* ==========================================================================
   Footer Extra
   ========================================================================== */
.lg-footer-logo {
    margin-bottom: var(--lg-spacing-md);
}

.lg-footer-logo .lg-logo-text {
    font-size: 1.5rem;
    color: white;
}

.lg-footer-social {
    display: flex;
    gap: 12px;
    margin-top: var(--lg-spacing-md);
}

.lg-footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: all var(--lg-transition);
}

.lg-footer-social a:hover {
    background: var(--lg-accent);
    color: var(--lg-secondary);
}

/* ==========================================================================
   Back to Top
   ========================================================================== */
.lg-back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--lg-primary);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    opacity: 0;
    visibility: hidden;
    transition: all var(--lg-transition);
    z-index: 999;
    box-shadow: var(--lg-shadow-hover);
}

.lg-back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.lg-back-to-top:hover {
    background: var(--lg-primary-dark);
    transform: translateY(-3px);
}

/* ==========================================================================
   Lista View para libros
   ========================================================================== */
.lg-libros-list {
    display: flex;
    flex-direction: column;
    gap: var(--lg-spacing-md);
}

.lg-libros-list .lg-libro-card {
    flex-direction: row;
}

.lg-libros-list .lg-libro-cover {
    width: 150px;
    flex-shrink: 0;
    aspect-ratio: 2/3;
}

.lg-libros-list .lg-libro-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* ==========================================================================
   Widget Libros List
   ========================================================================== */
.lg-widget-libros-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.lg-widget-libros-list li {
    display: flex;
    align-items: center;
    gap: var(--lg-spacing-sm);
    padding: var(--lg-spacing-xs) 0;
    border-bottom: 1px solid var(--lg-border);
}

.lg-widget-libros-list li:last-child {
    border-bottom: none;
}

.lg-rank {
    width: 28px;
    height: 28px;
    background: var(--lg-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: bold;
    flex-shrink: 0;
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1024px) {
    .lg-libros-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .lg-colecciones-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .lg-search-form {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .lg-search-form button {
        grid-column: span 2;
    }
}

@media (max-width: 768px) {
    .lg-menu-toggle {
        display: block;
    }
    
    .lg-nav {
        position: fixed;
        top: 0;
        left: -100%;
        width: 85%;
        max-width: 320px;
        height: 100vh;
        background: var(--lg-bg-white);
        box-shadow: var(--lg-shadow-hover);
        padding: var(--lg-spacing-xl) var(--lg-spacing-lg);
        transition: left var(--lg-transition);
        z-index: 1001;
        overflow-y: auto;
    }
    
    .lg-nav.is-open {
        left: 0;
    }
    
    .lg-nav-menu {
        flex-direction: column;
        gap: 0;
    }
    
    .lg-nav-menu > li > a {
        padding: var(--lg-spacing-sm) 0;
        border-bottom: 1px solid var(--lg-border);
    }
    
    .lg-nav-menu .sub-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        padding: 0 0 0 var(--lg-spacing-md);
        background: transparent;
    }
    
    .lg-header-search {
        display: none;
    }
    
    .lg-libros-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--lg-spacing-md);
    }
    
    .lg-colecciones-grid {
        grid-template-columns: 1fr;
    }
    
    .lg-generos-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .lg-search-form {
        grid-template-columns: 1fr;
    }
    
    .lg-search-form button {
        grid-column: span 1;
    }
    
    .lg-filters-bar {
        flex-direction: column;
        gap: var(--lg-spacing-md);
        text-align: center;
    }
    
    .lg-filters-right {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .lg-hero-stats {
        flex-direction: column;
        gap: var(--lg-spacing-md);
    }
    
    .lg-hero-search {
        flex-direction: column;
    }
    
    .lg-efemerides-full {
        flex-direction: column;
        text-align: center;
    }
    
    .lg-header-top-content {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .lg-libros-grid {
        grid-template-columns: 1fr;
    }
    
    .lg-generos-grid {
        grid-template-columns: 1fr;
    }
    
    .lg-libro-actions {
        flex-direction: column;
    }
    
    .lg-libro-actions .lg-btn {
        width: 100%;
    }
}

/* ==========================================================================
   Menu overlay mobile
   ========================================================================== */
.lg-menu-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--lg-transition);
}

.lg-menu-overlay.is-active {
    opacity: 1;
    visibility: visible;
}

/* ==========================================================================
   Loading State
   ========================================================================== */
.loading {
    opacity: 0.6;
    pointer-events: none;
}