/* === ReadFy Blog List Page Styles (styles/blog/blog.css) === */

:root {
    --color-primario: #5867dd;
    --color-secundario: #ffffff;
    --color-terciario: #79829c;
    --color-acento: #34d399; /* Usamos el verde acento de ReadFy */
    --color-fondo-page: #f8f9fa;
    --color-borde: #e2e8f0;
    --text-primary: #2d3748;
    --text-secondary: #4a5568;
    --border-radius-main: 16px; 
    --shadow-main: 0 10px 15px -3px rgba(0,0,0,0.05), 0 4px 6px -2px rgba(0,0,0,0.025);
    --shadow-hover: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
    --font-principal: 'Nunito', 'Arial', sans-serif;
    
    /* Variables Locales para el Footer (Solo Blog) */
    --footer-bg-local: #1a202c; 
    --footer-text-local: #a0aec0;
    --footer-heading-local: #ffffff;
    --footer-border-local: #2d3748;
}

/* Reset específico para enlaces que actúan como tarjetas */
a.article-card {
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
}

.blog-main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem 4rem 1rem;
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
}

.blog-hero {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.blog-hero h1 {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.blog-hero .subtitle {
    font-size: 1.2rem;
    color: var(--color-terciario);
}

/* --- Layout Principal --- */
.blog-content-wrapper {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.5rem;
}

/* Escritorio: Sidebar a la derecha */
@media (min-width: 900px) {
    .blog-content-wrapper {
        grid-template-columns: 3fr 1fr;
    }
}

/* --- Grid de Artículos --- */
#article-list-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
}

/* --- Tarjeta de Artículo --- */
.article-card {
    background-color: var(--color-secundario);
    border-radius: var(--border-radius-main);
    box-shadow: var(--shadow-main);
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    height: 100%;
    border: 1px solid rgba(0,0,0,0.03);
    display: flex;
    flex-direction: column;
}

.article-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.article-image-wrapper {
    width: 100%;
    height: 200px;
    position: relative;
    background-color: #f1f5f9;
    overflow: hidden;
}

.article-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.article-card:hover .article-image-wrapper img {
    transform: scale(1.05);
}

.article-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    font-weight: 800;
    color: rgba(255, 255, 255, 0.9);
    text-transform: uppercase;
}

.article-category-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background-color: rgba(255, 255, 255, 0.95);
    color: var(--color-primario);
    padding: 0.35rem 0.8rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    backdrop-filter: blur(4px);
    z-index: 2;
}

.article-content {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.article-meta {
    font-size: 0.8rem;
    color: var(--color-terciario);
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.article-content h3 {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text-primary);
    margin: 0 0 0.8rem 0;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-content p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0 0 1.5rem 0;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex-grow: 1;
}

.article-footer {
    margin-top: auto;
    padding-top: 1rem;
    border-top: 1px solid var(--color-borde);
    display: flex;
    justify-content: flex-end;
    align-items: center;
}

.read-more {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--color-primario);
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

/* --- SIDEBAR REDISEÑADA --- */
.blog-sidebar {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.sidebar-card {
    background: var(--color-secundario);
    padding: 1.5rem;
    border-radius: var(--border-radius-main);
    box-shadow: var(--shadow-main);
    border: 1px solid rgba(0,0,0,0.03);
}

.sidebar-card h4 {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--text-primary);
    margin: 0 0 1.2rem 0;
    padding-bottom: 0.8rem;
    border-bottom: 2px solid #f1f5f9;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.sidebar-card h4::before {
    content: '';
    display: block;
    width: 6px;
    height: 24px;
    background-color: var(--color-acento);
    border-radius: 4px;
}

.category-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.category-list li {
    padding: 0.8rem 1rem;
    border-radius: 12px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 1rem;
    font-weight: 600;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: transparent;
    border: 1px solid transparent;
}

.category-list li:hover {
    background-color: #f8fafc;
    color: var(--color-primario);
    transform: translateX(5px);
}

.category-list li.active {
    background-color: #eef2ff;
    color: var(--color-primario);
    border-color: #c7d2fe;
}

.category-list li::after {
    content: '›';
    font-size: 1.4rem;
    line-height: 1;
    opacity: 0.3;
    transition: opacity 0.2s;
    margin-bottom: 3px; 
}

.category-list li:hover::after,
.category-list li.active::after {
    opacity: 1;
}

.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.tag-btn {
    background-color: #fff;
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.25, 0.8, 0.25, 1);
    border: 1px solid #e2e8f0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.02);
}

.tag-btn:hover {
    background-color: #fff;
    color: var(--color-primario);
    border-color: var(--color-primario);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(88, 103, 221, 0.15);
}

.tag-btn.active {
    background-color: var(--color-primario);
    color: #fff;
    border-color: var(--color-primario);
    box-shadow: 0 4px 10px rgba(88, 103, 221, 0.3);
}

.load-more-container {
    grid-column: 1 / -1;
    text-align: center;
    margin-top: 3rem;
}

#load-more-btn {
    background-color: white;
    border: 2px solid var(--color-primario);
    color: var(--color-primario);
    padding: 0.9rem 2.5rem;
    border-radius: 50px;
    font-weight: 800;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 4px 6px rgba(88, 103, 221, 0.1);
}

#load-more-btn:hover {
    background-color: var(--color-primario);
    color: white;
    box-shadow: 0 6px 15px rgba(88, 103, 221, 0.25);
    transform: translateY(-2px);
}

#load-more-btn:disabled {
    opacity: 0.6;
    cursor: wait;
    transform: none;
}

.skeleton-article-card {
    background-color: white;
    border: 1px solid #eee;
}
.skeleton-image { background-color: #e2e8f0; animation: pulse 1.5s infinite; }
.skeleton-text { background-color: #e2e8f0; border-radius: 4px; animation: pulse 1.5s infinite; }
.skeleton-filter { height: 30px; background-color: #e2e8f0; border-radius: 8px; margin-bottom: 0.8rem; animation: pulse 1.5s infinite; }

@keyframes pulse {
    0% { opacity: 0.6; }
    50% { opacity: 1; }
    100% { opacity: 0.6; }
}

@media (max-width: 900px) {
    .blog-sidebar {
        order: 1; 
    }
}

/* === FOOTER STYLES (LOCAL PARA BLOG) === */
/* Se añaden aquí para no afectar al global styles.css */

.main-footer {
    background-color: var(--footer-bg-local);
    color: var(--footer-text-local);
    padding: 4rem 1.5rem 2rem;
    margin-top: auto; 
    border-top: 1px solid var(--footer-border-local);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

/* Logo Section */
.footer-logo {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
}

.footer-logo .logo-icon {
    width: 48px;
    height: 48px;
    object-fit: contain;
}

.footer-logo .logo-text {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--footer-heading-local);
    margin: 0;
    letter-spacing: -0.5px;
}

/* Links Columns */
.footer-links-col h4 {
    color: var(--footer-heading-local);
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    margin-top: 0;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.footer-links-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.footer-links-col a {
    color: var(--footer-text-local);
    text-decoration: none;
    transition: color 0.2s ease, transform 0.2s ease;
    font-weight: 500;
    display: inline-block;
}

.footer-links-col a:hover {
    color: var(--color-primario);
    transform: translateX(5px);
}

/* Copyright Section */
.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 2rem;
    border-top: 1px solid var(--footer-border-local);
    text-align: center;
    font-size: 0.9rem;
    color: #718096;
}

.footer-bottom p {
    margin: 0;
}

/* Responsive Ajustes Footer */
@media (max-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr; /* Una sola columna en móviles */
        gap: 2.5rem;
        text-align: center;
    }

    .footer-logo {
        align-items: center; /* Centrar logo en móvil */
    }
    
    .footer-links-col a:hover {
        transform: none; /* Quitar animación lateral en móvil */
    }
}