/* ═══════════════════════════════════════════════════════════════
   BLOG FRONTEND — INGEOTOP-GEOMETROLOGIA
   ═══════════════════════════════════════════════════════════════
   
   Estructura:
     1. Variables y reset
     2. Hero del blog
     3. Tabs de categorías
     4. Grid de posts y tarjetas
     5. Estado vacío
     6. Detalle del post (header, imagen, contenido)
     7. Markdown renderizado (h1-h6, p, ul, ol, blockquote, etc.)
     8. Navegación entre posts y relacionados
     9. Responsive
   ═══════════════════════════════════════════════════════════════ */


/* ───────────────────────────────────────────────────────────────
   1) VARIABLES Y BASE
   ─────────────────────────────────────────────────────────────── */

.page-blog,
.page-blog-detalle {
    --blog-blue: #1C579D;
    --blog-blue-dark: #042C53;
    --blog-blue-mid: #2C2D82;
    --blog-green: #0D9D31;
    --blog-red: #E10713;
    --blog-gray: #939393;
    --blog-bg: #FAFAF7;
    --blog-bg-alt: #F4F2EC;
    --blog-border: #E5E2D9;
    --blog-text: #2A2A28;
    --blog-text-light: #5F5E5A;
    --blog-card-shadow: 0 1px 3px rgba(0,0,0,0.04), 0 4px 12px rgba(0,0,0,0.04);
    --blog-card-shadow-hover: 0 2px 6px rgba(0,0,0,0.06), 0 12px 28px rgba(0,0,0,0.08);
    
    background: #fff;
    color: var(--blog-text);
}

.page-blog .container--narrow,
.page-blog-detalle .container--narrow {
    max-width: 760px;
    margin-left: auto;
    margin-right: auto;
}

.blog-pretitulo {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--blog-green);
    margin-bottom: 1rem;
    position: relative;
    padding-left: 1.25rem;
}
.blog-pretitulo::before {
    content: '—';
    position: absolute;
    left: 0;
    top: 0;
    color: var(--blog-green);
}
.blog-pretitulo--light {
    color: rgba(255, 255, 255, 0.85);
}
.blog-pretitulo--light::before {
    color: rgba(255, 255, 255, 0.85);
}

.blog-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--blog-blue);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: gap 0.18s ease;
}
.blog-link:hover {
    gap: 0.75rem;
    color: var(--blog-blue-dark);
}
.blog-link .material-symbols-rounded {
    font-size: 1.125rem;
}


/* ───────────────────────────────────────────────────────────────
   2) HERO DEL BLOG
   ─────────────────────────────────────────────────────────────── */

.blog-hero {
    background: linear-gradient(135deg, #042C53 0%, #1C579D 100%);
    color: #fff;
    padding: 5rem 0 4rem;
    position: relative;
    overflow: hidden;
}
.blog-hero::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 60px;
    background: linear-gradient(to bottom, transparent, #fff);
    pointer-events: none;
}
.blog-hero .container {
    position: relative;
    z-index: 1;
    max-width: 800px;
    text-align: center;
}
.blog-hero-titulo {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 700;
    line-height: 1.15;
    color: #fff;
    margin: 0 0 1.5rem;
    letter-spacing: -0.01em;
}
.blog-hero-descripcion {
    font-size: clamp(1rem, 1.4vw, 1.125rem);
    line-height: 1.65;
    color: rgba(255, 255, 255, 0.85);
    max-width: 640px;
    margin: 0 auto;
}


/* ───────────────────────────────────────────────────────────────
   3) TABS DE CATEGORÍAS
   ─────────────────────────────────────────────────────────────── */

.blog-tabs-section {
    background: #fff;
    padding: 2rem 0 0;
    border-bottom: 1px solid var(--blog-border);
}
.blog-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
    justify-content: center;
}
.blog-tab {
    display: inline-block;
    padding: 0.7rem 1.25rem;
    color: var(--blog-text-light);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.925rem;
    border-bottom: 2px solid transparent;
    transition: all 0.18s ease;
}
.blog-tab:hover {
    color: var(--blog-blue);
}
.blog-tab--active {
    color: var(--blog-blue-dark);
    border-bottom-color: var(--blog-green);
}


/* ───────────────────────────────────────────────────────────────
   4) GRID DE POSTS Y TARJETAS
   ─────────────────────────────────────────────────────────────── */

.blog-grid-section {
    padding: 3.5rem 0 5rem;
    background: var(--blog-bg);
}

.blog-card {
    background: #fff;
    border: 1px solid var(--blog-border);
    border-radius: 10px;
    overflow: hidden;
    transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
}
.blog-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--blog-card-shadow-hover);
    border-color: var(--blog-blue);
}
.blog-card-link {
    display: flex;
    flex-direction: column;
    height: 100%;
    text-decoration: none;
    color: inherit;
}

/* Imagen / placeholder */
.blog-card-imagen {
    position: relative;
    aspect-ratio: 16 / 9;
    background: var(--blog-bg-alt);
    overflow: hidden;
}
.blog-card-imagen img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}
.blog-card:hover .blog-card-imagen img {
    transform: scale(1.04);
}
.blog-card-imagen-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #F4F2EC 0%, #E8E6DD 100%);
}
.blog-card-imagen-placeholder .material-symbols-rounded {
    font-size: 3.5rem;
    color: var(--blog-gray);
    opacity: 0.5;
}
.blog-card-categoria {
    position: absolute;
    bottom: 0.875rem;
    left: 0.875rem;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(4px);
    color: var(--blog-blue-dark);
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.4rem 0.75rem;
    border-radius: 4px;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

/* Body */
.blog-card-body {
    padding: 1.5rem 1.5rem 1.75rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.blog-card-meta {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.825rem;
    color: var(--blog-text-light);
    margin-bottom: 0.875rem;
    flex-wrap: wrap;
}
.blog-card-meta .material-symbols-rounded {
    font-size: 1rem;
}
.blog-card-meta-sep {
    opacity: 0.5;
}
.blog-card-titulo {
    font-size: 1.15rem;
    font-weight: 700;
    line-height: 1.35;
    color: var(--blog-blue-dark);
    margin: 0 0 0.75rem;
    transition: color 0.18s ease;
}
.blog-card:hover .blog-card-titulo {
    color: var(--blog-blue);
}
.blog-card-resumen {
    font-size: 0.925rem;
    line-height: 1.55;
    color: var(--blog-text-light);
    margin: 0 0 1rem;
    flex: 1;
}
.blog-card-leer {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--blog-blue);
    font-weight: 600;
    font-size: 0.875rem;
    margin-top: auto;
    transition: gap 0.18s ease;
}
.blog-card:hover .blog-card-leer {
    gap: 0.6rem;
}
.blog-card-leer .material-symbols-rounded {
    font-size: 1rem;
}

/* Variante destacada — primer post full width */
.blog-card--featured .blog-card-link {
    flex-direction: row;
    align-items: stretch;
}
.blog-card--featured .blog-card-imagen {
    width: 50%;
    aspect-ratio: auto;
    flex-shrink: 0;
}
.blog-card--featured .blog-card-body {
    width: 50%;
    padding: 2.5rem 2.5rem;
    justify-content: center;
}
.blog-card--featured .blog-card-titulo {
    font-size: 1.5rem;
    line-height: 1.25;
}
.blog-card--featured .blog-card-resumen {
    font-size: 1rem;
    margin-bottom: 1.5rem;
    flex: 0;
}


/* ───────────────────────────────────────────────────────────────
   5) ESTADO VACÍO
   ─────────────────────────────────────────────────────────────── */

.blog-vacio {
    text-align: center;
    padding: 4rem 2rem;
    max-width: 480px;
    margin: 0 auto;
}
.blog-vacio .material-symbols-rounded {
    font-size: 4rem;
    color: var(--blog-gray);
    opacity: 0.5;
    margin-bottom: 1rem;
}
.blog-vacio h2 {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--blog-blue-dark);
    margin: 0 0 0.75rem;
}
.blog-vacio p {
    color: var(--blog-text-light);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}


/* ───────────────────────────────────────────────────────────────
   6) DETALLE DEL POST
   ─────────────────────────────────────────────────────────────── */

/* Breadcrumb */
.blog-breadcrumb {
    background: var(--blog-bg);
    padding: 1.25rem 0;
    border-bottom: 1px solid var(--blog-border);
    font-size: 0.875rem;
}
.blog-breadcrumb a {
    color: var(--blog-text-light);
    text-decoration: none;
    transition: color 0.18s ease;
}
.blog-breadcrumb a:hover {
    color: var(--blog-blue);
}
.blog-breadcrumb-sep {
    color: var(--blog-gray);
    margin: 0 0.5rem;
    opacity: 0.5;
}
.blog-breadcrumb-current {
    color: var(--blog-blue-dark);
    font-weight: 600;
}

/* Header */
.blog-post {
    background: #fff;
}
.blog-post-header {
    padding: 4rem 0 2.5rem;
    text-align: center;
    background: linear-gradient(180deg, var(--blog-bg) 0%, #fff 100%);
}
.blog-post-categoria {
    display: inline-block;
    background: var(--blog-blue);
    color: #fff;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.4rem 0.875rem;
    border-radius: 4px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    text-decoration: none;
    margin-bottom: 1.5rem;
    transition: background 0.18s ease;
}
.blog-post-categoria:hover {
    background: var(--blog-blue-dark);
    color: #fff;
}
.blog-post-titulo {
    font-size: clamp(1.75rem, 4vw, 2.75rem);
    font-weight: 700;
    line-height: 1.18;
    color: var(--blog-blue-dark);
    margin: 0 0 1.5rem;
    letter-spacing: -0.01em;
    max-width: 760px;
    margin-left: auto;
    margin-right: auto;
}
.blog-post-resumen {
    font-size: clamp(1.05rem, 1.5vw, 1.2rem);
    line-height: 1.55;
    color: var(--blog-text-light);
    max-width: 700px;
    margin: 0 auto 2rem;
    font-weight: 400;
}
.blog-post-meta {
    display: flex;
    justify-content: center;
    gap: 1.75rem;
    flex-wrap: wrap;
    color: var(--blog-text-light);
    font-size: 0.9rem;
}
.blog-post-meta-item {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}
.blog-post-meta-item .material-symbols-rounded {
    font-size: 1.05rem;
}

/* Imagen destacada */
.blog-post-imagen {
    margin: 2rem 0 0;
    background: var(--blog-bg-alt);
}
.blog-post-imagen img {
    width: 100%;
    max-height: 540px;
    object-fit: cover;
    display: block;
}

/* Contenido */
.blog-post-contenido {
    padding: 3rem 0 2rem;
}


/* ───────────────────────────────────────────────────────────────
   7) MARKDOWN RENDERIZADO (.blog-markdown)
   ─────────────────────────────────────────────────────────────── */

.blog-markdown {
    font-size: 1.0625rem;
    line-height: 1.75;
    color: var(--blog-text);
}

/* Headings */
.blog-markdown h1,
.blog-markdown h2,
.blog-markdown h3,
.blog-markdown h4,
.blog-markdown h5,
.blog-markdown h6 {
    font-weight: 700;
    color: var(--blog-blue-dark);
    line-height: 1.25;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    letter-spacing: -0.005em;
}
.blog-markdown h1 {
    font-size: 1.75rem;
    border-bottom: 2px solid var(--blog-border);
    padding-bottom: 0.625rem;
}
.blog-markdown h2 {
    font-size: 1.5rem;
    border-bottom: 1px solid var(--blog-border);
    padding-bottom: 0.5rem;
}
.blog-markdown h3 {
    font-size: 1.25rem;
}
.blog-markdown h4 {
    font-size: 1.125rem;
}
.blog-markdown > h1:first-child,
.blog-markdown > h2:first-child {
    margin-top: 0;
}

/* Párrafos */
.blog-markdown p {
    margin-bottom: 1.4rem;
}
.blog-markdown p:last-child {
    margin-bottom: 0;
}

/* Énfasis */
.blog-markdown strong {
    color: var(--blog-blue-dark);
    font-weight: 700;
}
.blog-markdown em {
    color: var(--blog-text);
    font-style: italic;
}

/* Listas */
.blog-markdown ul,
.blog-markdown ol {
    margin: 0 0 1.5rem 0;
    padding-left: 1.5rem;
}
.blog-markdown ul li,
.blog-markdown ol li {
    margin-bottom: 0.5rem;
    line-height: 1.7;
}
.blog-markdown ul ul,
.blog-markdown ol ol,
.blog-markdown ul ol,
.blog-markdown ol ul {
    margin-top: 0.5rem;
    margin-bottom: 0.5rem;
}

/* Blockquote — citas destacadas */
.blog-markdown blockquote {
    margin: 2rem 0;
    padding: 1.5rem 1.75rem;
    border-left: 4px solid var(--blog-green);
    background: linear-gradient(90deg, rgba(13, 157, 49, 0.06) 0%, transparent 100%);
    border-radius: 0 6px 6px 0;
    font-style: italic;
    color: var(--blog-text);
}
.blog-markdown blockquote p {
    margin-bottom: 0.75rem;
    font-size: 1.075rem;
    line-height: 1.65;
}
.blog-markdown blockquote p:last-child {
    margin-bottom: 0;
}
.blog-markdown blockquote strong {
    color: var(--blog-green);
}

/* Links inline */
.blog-markdown a {
    color: var(--blog-blue);
    text-decoration: underline;
    text-underline-offset: 3px;
    text-decoration-thickness: 1px;
    transition: color 0.18s ease;
}
.blog-markdown a:hover {
    color: var(--blog-blue-dark);
    text-decoration-thickness: 2px;
}

/* Código inline */
.blog-markdown code {
    background: var(--blog-bg-alt);
    color: var(--blog-blue-dark);
    padding: 0.1rem 0.4rem;
    border-radius: 3px;
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
}

/* Bloques de código */
.blog-markdown pre {
    background: #1E2A3A;
    color: #E8E6DD;
    padding: 1.25rem 1.5rem;
    border-radius: 6px;
    overflow-x: auto;
    margin: 1.5rem 0;
    font-size: 0.9rem;
    line-height: 1.55;
}
.blog-markdown pre code {
    background: none;
    color: inherit;
    padding: 0;
    font-size: inherit;
}

/* Imágenes inline */
.blog-markdown img {
    max-width: 100%;
    height: auto;
    margin: 1.5rem auto;
    display: block;
    border-radius: 6px;
    box-shadow: var(--blog-card-shadow);
}

/* SVG inline (línea de tiempo, diagramas) */
.blog-markdown svg {
    max-width: 100%;
    height: auto;
    margin: 2rem auto;
    display: block;
}

/* Reglas horizontales */
.blog-markdown hr {
    border: 0;
    border-top: 1px solid var(--blog-border);
    margin: 2.5rem 0;
}

/* Tablas */
.blog-markdown table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    font-size: 0.95rem;
}
.blog-markdown table th,
.blog-markdown table td {
    padding: 0.75rem 1rem;
    border: 1px solid var(--blog-border);
    text-align: left;
}
.blog-markdown table th {
    background: var(--blog-bg);
    font-weight: 700;
    color: var(--blog-blue-dark);
}
.blog-markdown table tbody tr:nth-child(even) {
    background: var(--blog-bg);
}


/* ───────────────────────────────────────────────────────────────
   8) NAVEGACIÓN ENTRE POSTS Y RELACIONADOS
   ─────────────────────────────────────────────────────────────── */

.blog-post-nav {
    padding: 2.5rem 0;
    background: var(--blog-bg);
    border-top: 1px solid var(--blog-border);
    border-bottom: 1px solid var(--blog-border);
}
.blog-post-nav-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}
.blog-post-nav-item {
    display: block;
    padding: 1.5rem;
    background: #fff;
    border: 1px solid var(--blog-border);
    border-radius: 8px;
    text-decoration: none;
    transition: border-color 0.18s ease, transform 0.18s ease;
}
.blog-post-nav-item:hover {
    border-color: var(--blog-blue);
    transform: translateY(-2px);
}
.blog-post-nav-item--next {
    text-align: right;
}
.blog-post-nav-label {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--blog-text-light);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 0.5rem;
}
.blog-post-nav-item--next .blog-post-nav-label {
    justify-content: flex-end;
}
.blog-post-nav-label .material-symbols-rounded {
    font-size: 1rem;
}
.blog-post-nav-titulo {
    display: block;
    font-size: 1rem;
    font-weight: 700;
    color: var(--blog-blue-dark);
    line-height: 1.35;
}

/* Relacionados */
.blog-relacionados {
    padding: 4rem 0;
    background: #fff;
}
.blog-relacionados-header {
    text-align: center;
    margin-bottom: 2.5rem;
}
.blog-relacionados-header h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--blog-blue-dark);
    margin: 0;
}

/* Volver al blog */
.blog-volver {
    padding: 2rem 0 4rem;
    background: var(--blog-bg);
    text-align: center;
}
.blog-link--volver {
    font-size: 0.95rem;
}


/* ───────────────────────────────────────────────────────────────
   9) RESPONSIVE
   ─────────────────────────────────────────────────────────────── */

@media (max-width: 991.98px) {
    /* Card destacada → vertical en móvil */
    .blog-card--featured .blog-card-link {
        flex-direction: column;
    }
    .blog-card--featured .blog-card-imagen {
        width: 100%;
        aspect-ratio: 16 / 9;
    }
    .blog-card--featured .blog-card-body {
        width: 100%;
        padding: 1.5rem;
    }
    .blog-card--featured .blog-card-titulo {
        font-size: 1.25rem;
    }
}

@media (max-width: 767.98px) {
    .blog-hero {
        padding: 3rem 0 2.5rem;
    }
    .blog-grid-section {
        padding: 2.5rem 0 3.5rem;
    }
    .blog-post-header {
        padding: 2.5rem 0 2rem;
    }
    .blog-post-meta {
        gap: 1rem;
    }
    .blog-post-contenido {
        padding: 2rem 0 1rem;
    }
    .blog-markdown {
        font-size: 1rem;
    }
    .blog-markdown h1 { font-size: 1.5rem; }
    .blog-markdown h2 { font-size: 1.3rem; }
    .blog-markdown h3 { font-size: 1.15rem; }
    
    /* Nav entre posts → vertical en móvil */
    .blog-post-nav-grid {
        grid-template-columns: 1fr;
    }
    .blog-post-nav-item--next {
        text-align: left;
    }
    .blog-post-nav-item--next .blog-post-nav-label {
        justify-content: flex-start;
    }
    
    .blog-tabs {
        justify-content: flex-start;
        overflow-x: auto;
        flex-wrap: nowrap;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }
    .blog-tabs::-webkit-scrollbar {
        display: none;
    }
    .blog-tab {
        white-space: nowrap;
        flex-shrink: 0;
    }
}
/* Resumen / lead del detalle del post */
.blog-post-resumen {
    text-align: justify;
    hyphens: auto;
    -webkit-hyphens: auto;
}
 
/* Párrafos del cuerpo Markdown */
.blog-markdown p {
    text-align: justify;
    hyphens: auto;
    -webkit-hyphens: auto;
}