/* =============================================================
   Casona San José — Blog Destacado (Home, sección 7)
   3 cards de posts: imagen 4:3 + meta + título + excerpt + link.
   Grid 3-col → 2-col → 1-col.
   Referencia: BlogDestacado.jsx del design system.
   Dials: motion 3-4, density 2-3, variance 5-6.
   ============================================================= */


/* -----------------------------------------------------------
   SECCIÓN — fondo --color-blanco: ruptura clara vs secciones arena
   ----------------------------------------------------------- */

.csn-blog {
  padding-block: var(--section-padding-y);
  background: var(--bg-soft);    /* --color-blanco #FAFAF8 */
}


/* -----------------------------------------------------------
   INNER
   ----------------------------------------------------------- */

.csn-blog__inner {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--section-padding-x);
}


/* -----------------------------------------------------------
   HEAD — eyebrow + título a la izquierda, link a la derecha
   ----------------------------------------------------------- */

.csn-blog__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: var(--space-6);
  flex-wrap: wrap;
  margin-block-end: 56px;
}

.csn-blog__head-left {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.csn-blog__title {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1.75rem, 3vw, 2.75rem);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--color-noche);
  text-wrap: balance;
  max-width: 22ch;
  margin: 0;
}

.csn-blog__title em {
  font-style: italic;
}

/* Link "Ver todo el blog →" */
.csn-blog__more {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: var(--type-body-sm);
  color: var(--color-noche);
  text-decoration: none;
  padding-block-end: 4px;
  border-block-end: 1px solid var(--color-noche);
  transition: color var(--duration-normal) var(--ease-out),
              border-color var(--duration-normal) var(--ease-out);
}

.csn-blog__more:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.csn-blog__more svg {
  flex-shrink: 0;
  transition: transform var(--duration-normal) var(--ease-out);
}

.csn-blog__more:hover svg {
  transform: translateX(4px);
}


/* -----------------------------------------------------------
   GRID — 3 columnas
   ----------------------------------------------------------- */

.csn-blog__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);    /* 32px */
}

/* Tablet — 2 columnas */
@media (max-width: 1080px) {
  .csn-blog__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Mobile — 1 columna */
@media (max-width: 720px) {
  .csn-blog__grid {
    grid-template-columns: 1fr;
  }
}


/* -----------------------------------------------------------
   CARD — enlace al post
   ----------------------------------------------------------- */

.csn-post {
  display: flex;
  flex-direction: column;
  gap: 18px;
  color: var(--color-noche);
  text-decoration: none;
  transition: transform var(--duration-normal) var(--ease-out);
}

.csn-post:hover {
  transform: translateY(-3px);
}


/* -----------------------------------------------------------
   IMAGEN — aspect-ratio 4:3 (paisaje)
   border-radius: 0 — regla dura del design system
   ----------------------------------------------------------- */

.csn-post__media {
  aspect-ratio: 4 / 3;
  width: 100%;
  overflow: hidden;
  position: relative;
  background-color: var(--color-borde);    /* fallback sin imagen */
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  filter: saturate(1.05);
  border-radius: var(--radius-img);        /* 0px — regla dura */
}

/* Overlay oscuro — se disipa en hover */
.csn-post__media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: color-mix(in srgb, var(--color-noche) 10%, transparent);
  transition: opacity var(--duration-normal) var(--ease-out);
}

.csn-post:hover .csn-post__media::after {
  opacity: 0;
}

/* Badge de placeholder — visible en local, sin efecto en producción */
.csn-post__media[data-placeholder]::before {
  content: attr(data-placeholder);
  position: absolute;
  bottom: var(--space-3);
  left: var(--space-3);
  z-index: 1;
  font-family: var(--font-body);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: color-mix(in srgb, var(--color-blanco) 70%, transparent);
  background: color-mix(in srgb, var(--color-noche) 55%, transparent);
  padding: 2px 6px;
  pointer-events: none;
}


/* -----------------------------------------------------------
   META — categoría · fecha
   ----------------------------------------------------------- */

.csn-post__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  font-family: var(--font-body);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-sombra);
}

.csn-post__cat {
  color: var(--accent);    /* --color-verde-cajon */
  font-weight: 500;
}

.csn-post__dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: currentColor;
  flex-shrink: 0;
}


/* -----------------------------------------------------------
   TÍTULO
   ----------------------------------------------------------- */

.csn-post__title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 24px;
  line-height: 1.2;
  letter-spacing: var(--tracking-tight);
  color: var(--color-noche);
  text-wrap: balance;
  margin: 0;
}


/* -----------------------------------------------------------
   EXCERPT
   ----------------------------------------------------------- */

.csn-post__excerpt {
  font-family: var(--font-body);
  font-size: var(--type-body-sm);
  line-height: var(--leading-normal);
  color: var(--color-noche-suave);
  margin: 0;
}


/* -----------------------------------------------------------
   LINK "LEER" con flecha
   ----------------------------------------------------------- */

.csn-post__arrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  align-self: flex-start;
  margin-block-start: var(--space-1);
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 13px;
  color: var(--color-noche);
  padding-block-end: 4px;
  border-block-end: 1px solid var(--color-noche);
}

.csn-post__arrow svg {
  flex-shrink: 0;
  transition: transform var(--duration-normal) var(--ease-out);
}

.csn-post:hover .csn-post__arrow svg {
  transform: translateX(4px);
}


/* -----------------------------------------------------------
   PREFERS-REDUCED-MOTION
   ----------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  .csn-post,
  .csn-post__media::after,
  .csn-blog__more,
  .csn-blog__more svg,
  .csn-post__arrow svg {
    transition: none;
  }

  .csn-post:hover {
    transform: none;
  }

  .csn-post:hover .csn-post__arrow svg,
  .csn-blog__more:hover svg {
    transform: none;
  }
}