/**
 * ==========================================================
 * SIDV Theme — Servindustriales del Valle S.A.S.
 * ----------------------------------------------------------
 * Componente: blog/posts-grid (CSS Refactorizado & Unificado)
 * Version: 1.4.0
 * ----------------------------------------------------------
 * Arquitectura BEM integral. Resuelve problemas de colapso de
 * ancho, asegura adaptabilidad en CSS Grid, elimina FOUC
 * y maqueta las tarjetas internas (.sidv-post-card).
 * ==========================================================
 */

:root {
    --sidv-grid-bg: #f8fafc;
    --sidv-grid-brand: #025672;
    --sidv-grid-brand-hover: #013e53;
    --sidv-grid-accent: #f09700;
    --sidv-grid-accent-hover: #d88700;
    --sidv-grid-title: #0f172a;
    --sidv-grid-body: #475569;
    --sidv-grid-muted: #64748b;
    --sidv-grid-border: #e2e8f0;
    --sidv-grid-card-bg: #ffffff;
    --sidv-grid-gap: 2rem;
    --sidv-grid-radius: 12px;
    --sidv-grid-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.06);
    --sidv-grid-shadow-hover: 0 16px 32px -4px rgba(2, 86, 114, 0.14);
}

/*
==================================================
1. CONTENEDOR PRINCIPAL Y MODIFICADORES DE ESPACIO
==================================================
*/
.sidv-blog-posts {
    width: 100%;
    background-color: var(--sidv-grid-bg);
    position: relative;
    box-sizing: border-box;
}

/* Modificadores de Padding Vertical */
.sidv-blog-posts--spacing-default {
    padding: 5rem 0;
}

.sidv-blog-posts--spacing-compact {
    padding: 3rem 0;
}

.sidv-blog-posts--spacing-top-zero {
    padding-top: 0;
    padding-bottom: 5rem;
}

.sidv-blog-posts--spacing-none {
    padding: 0;
}

.sidv-blog-posts .sidv-container {
    width: 100%;
    max-width: 1280px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
    box-sizing: border-box;
}

/*
==================================================
2. ENCABEZADO DE LA SECCIÓN
==================================================
*/
.sidv-blog-posts__header {
    max-width: 760px;
    margin: 0 auto 3rem;
    text-align: center;
    opacity: 1;
    transform: translateY(0);
}

.sidv-blog-posts__eyebrow {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.4rem 1.1rem;
    border-radius: 999px;
    background: rgba(2, 86, 114, 0.08);
    border: 1px solid rgba(2, 86, 114, 0.15);
    color: var(--sidv-grid-brand);
    font-size: 0.775rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.sidv-blog-posts__title {
    margin: 0 0 1rem 0;
    font-size: clamp(1.85rem, 3.2vw, 2.65rem);
    font-weight: 800;
    color: var(--sidv-grid-title);
    line-height: 1.25;
    letter-spacing: -0.02em;
}

.sidv-blog-posts__description {
    max-width: 680px;
    margin: 0 auto;
    color: var(--sidv-grid-body);
    font-size: 1rem;
    line-height: 1.75;
}

/*
==================================================
3. GRILLA DINÁMICA (MODIFICADORES DE COLUMNAS)
==================================================
*/
.sidv-blog-posts__grid {
    display: grid;
    width: 100%;
    gap: var(--sidv-grid-gap);
    align-items: stretch;
}

/* Distribución de columnas según configuración PHP */
.sidv-blog-posts__grid--cols-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.sidv-blog-posts__grid--cols-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.sidv-blog-posts__grid--cols-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

/*
==================================================
4. ESTILOS DE TARJETA INTEGRADA (.sidv-post-card)
==================================================
*/
.sidv-post-card,
.sidv-blog-posts__item {
    width: 100% !important;
    max-width: 100% !important;
    min-width: 0 !important;
    display: flex;
    flex-direction: column;
    background-color: var(--sidv-grid-card-bg);
    border: 1px solid var(--sidv-grid-border);
    border-radius: var(--sidv-grid-radius);
    overflow: hidden;
    box-shadow: var(--sidv-grid-shadow);
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1),
                box-shadow 0.35s cubic-bezier(0.16, 1, 0.3, 1),
                border-color 0.35s ease;
    position: relative;
    height: 100%;
    box-sizing: border-box;
    opacity: 1;
    transform: translateY(0);
}

.sidv-post-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--sidv-grid-shadow-hover);
    border-color: rgba(2, 86, 114, 0.28);
}

/* Imagen y Contenedor Superior */
.sidv-post-card__media {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background-color: #f1f5f9;
}

.sidv-post-card__image-link {
    display: block;
    width: 100%;
    height: 100%;
    text-decoration: none;
}

.sidv-post-card__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.sidv-post-card:hover .sidv-post-card__img {
    transform: scale(1.05);
}

/* Placeholder de marca cuando falta la imagen destacada */
.sidv-post-card__placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--sidv-grid-brand) 0%, var(--sidv-grid-brand-hover) 100%);
}

.sidv-post-card__placeholder-brand {
    font-size: 1.5rem;
    font-weight: 900;
    color: #ffffff;
    letter-spacing: 0.1em;
    opacity: 0.85;
}

/* Badge de Categoría Principal */
.sidv-post-card__category {
    position: absolute;
    top: 0.85rem;
    left: 0.85rem;
    background-color: var(--sidv-grid-brand);
    color: #ffffff;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.3rem 0.65rem;
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    pointer-events: none;
    z-index: 2;
}

/* Cuerpo de Contenido de la Tarjeta */
.sidv-post-card__content {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    padding: 1.35rem;
}

/* Metadatos */
.sidv-post-card__meta {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.8rem;
    color: var(--sidv-grid-muted);
    font-weight: 500;
    margin-bottom: 0.65rem;
}

.sidv-post-card__meta-divider {
    opacity: 0.6;
}

/* Título de la publicación */
.sidv-post-card__title {
    margin: 0 0 0.65rem 0;
    font-size: 1.15rem;
    font-weight: 700;
    line-height: 1.35;
    letter-spacing: -0.01em;
}

.sidv-post-card__title-link {
    color: var(--sidv-grid-title);
    text-decoration: none;
    transition: color 0.25s ease;
}

.sidv-post-card:hover .sidv-post-card__title-link,
.sidv-post-card__title-link:hover {
    color: var(--sidv-grid-brand);
}

/* Extracto con corte multilínea */
.sidv-post-card__excerpt {
    margin: 0 0 1.25rem 0;
    color: var(--sidv-grid-body);
    font-size: 0.9rem;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Pie de tarjeta */
.sidv-post-card__footer {
    margin-top: auto;
    padding-top: 0.85rem;
    border-top: 1px solid #f1f5f9;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
}

.sidv-post-card__author {
    font-size: 0.8rem;
    color: var(--sidv-grid-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidv-post-card__author-name {
    font-weight: 600;
    color: var(--sidv-grid-title);
}

.sidv-post-card__button {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.825rem;
    font-weight: 700;
    color: var(--sidv-grid-brand);
    text-decoration: none;
    transition: color 0.2s ease, transform 0.2s ease;
}

.sidv-post-card__button-icon {
    transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.sidv-post-card:hover .sidv-post-card__button {
    color: var(--sidv-grid-accent);
}

.sidv-post-card:hover .sidv-post-card__button-icon {
    transform: translateX(4px);
}

/*
==================================================
5. ESTADOS DE ANIMACIÓN (INTERSECTION OBSERVER)
==================================================
*/
.sidv-blog-posts__header.js-animate,
.sidv-post-card.js-animate {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    will-change: opacity, transform;
}

.sidv-blog-posts__header.is-visible,
.sidv-post-card.is-visible {
    opacity: 1 !important;
    transform: translateY(0) !important;
}

.sidv-post-card.is-hidden {
    display: none !important;
}

/*
==================================================
6. PAGINACIÓN DE WORDPRESS
==================================================
*/
.sidv-blog-posts__pagination {
    margin-top: 3.5rem;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.sidv-blog-posts__pagination .page-numbers {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 2.75rem;
    height: 2.75rem;
    padding: 0 0.85rem;
    border-radius: 0.5rem;
    background-color: #ffffff;
    border: 1px solid var(--sidv-grid-border);
    color: var(--sidv-grid-title);
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s ease-in-out;
}

.sidv-blog-posts__pagination .page-numbers:hover {
    border-color: var(--sidv-grid-brand);
    color: var(--sidv-grid-brand);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(2, 86, 114, 0.1);
}

.sidv-blog-posts__pagination .page-numbers.current {
    background-color: var(--sidv-grid-brand);
    border-color: var(--sidv-grid-brand);
    color: #ffffff;
    box-shadow: 0 4px 14px rgba(2, 86, 114, 0.22);
}

/*
==================================================
7. ESTADO VACÍO (EMPTY STATE)
==================================================
*/
.sidv-blog-posts__empty {
    text-align: center;
    padding: 4rem 2rem;
    background: #ffffff;
    border-radius: 1rem;
    border: 1px dashed var(--sidv-grid-border);
    color: var(--sidv-grid-muted);
    max-width: 580px;
    margin: 0 auto;
}

.sidv-blog-posts__empty p {
    margin: 0;
    font-size: 1rem;
}

/*
==================================================
8. BREAKPOINTS RESPONSIVOS
==================================================
*/
@media (max-width: 1200px) {
    .sidv-blog-posts__grid--cols-4 {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 992px) {
    .sidv-blog-posts__grid--cols-3,
    .sidv-blog-posts__grid--cols-4 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 1.5rem;
    }

    .sidv-blog-posts--spacing-default {
        padding: 4rem 0;
    }
}

@media (max-width: 640px) {
    .sidv-blog-posts--spacing-default,
    .sidv-blog-posts--spacing-top-zero {
        padding-bottom: 3.5rem;
    }

    .sidv-blog-posts__grid--cols-2,
    .sidv-blog-posts__grid--cols-3,
    .sidv-blog-posts__grid--cols-4 {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }

    .sidv-blog-posts__header {
        margin-bottom: 2.25rem;
    }
}

/* Accesibilidad: Reducción de movimiento */
@media (prefers-reduced-motion: reduce) {
    .sidv-blog-posts__header,
    .sidv-post-card,
    .sidv-post-card__img,
    .sidv-post-card__button-icon {
        opacity: 1 !important;
        transform: none !important;
        transition: none !important;
    }
}