/* =========================================================
   blog-card.css — Travel Blog мозайк
   Хулгана очиход доод хэсэг дээшээ томорч, тайлбар гарч ирнэ
   ========================================================= */
.blog-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  grid-template-rows: repeat(2, 300px);
  gap: 16px;
}
.blog-card--large { grid-row: span 2; }

/* Зургийн гол хэсгийг харуулах (шаардлагатай бол card бүрт style="object-position:..." тавина) */

.blog-card {
  position: relative;
  display: block;
  border-radius: 12px;
  overflow: hidden;
  background: var(--charcoal);
  color: #fff;
  text-decoration: none;
  isolation: isolate;
}
.blog-card img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
  z-index: -1;
}

/* Доод бүдгэрсэн (frosted) хэсэг */
.blog-card-panel {
  position: absolute; left: 0; right: 0; bottom: 0;
  min-height: 68px;
  padding: 18px 20px;
  display: flex; flex-direction: column; justify-content: center;
  text-align: center;
  background: rgba(31, 35, 35, 0.28);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
  backdrop-filter: blur(14px) saturate(1.2);
  transition: background 0.35s ease, color 0.35s ease, padding 0.35s ease;
}
.blog-card-panel h3 {
  font-size: 1.05rem;
  line-height: 1.25;
  text-shadow: 0 1px 6px rgba(0,0,0,0.25);
  transition: text-shadow 0.35s;
}
.blog-card--large .blog-card-panel { min-height: 88px; }
.blog-card--large .blog-card-panel h3 { font-size: clamp(1.4rem, 2.4vw, 2rem); }

/* Тайлбар: эхэндээ нуугдсан */
.blog-card-panel p {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  font-size: 0.95rem;
  line-height: 1.5;
  transition: max-height 0.45s ease, opacity 0.3s ease, margin 0.35s ease;
}

/* Hover / гараар (Tab) сонгоход: цайвар хэсэг дээшээ томорно */
.blog-card:hover .blog-card-panel,
.blog-card:focus-visible .blog-card-panel {
  background: rgba(247, 247, 242, 0.85);
  color: var(--charcoal);
  padding: 24px 22px;
}
.blog-card:hover .blog-card-panel h3,
.blog-card:focus-visible .blog-card-panel h3 { text-shadow: none; }
.blog-card:hover .blog-card-panel p,
.blog-card:focus-visible .blog-card-panel p {
  max-height: 220px;
  opacity: 1;
  margin-top: 10px;
}
.blog-card:hover img { transform: scale(1.04); }
.blog-card:focus-visible { outline: 3px solid var(--sand-gold); outline-offset: 3px; }

/* Таблет */
@media (max-width: 1024px) {
  .blog-grid { grid-template-rows: repeat(2, 240px); }
  .blog-card-panel p { font-size: 0.85rem; }
}

/* Гар утас: том карт дээр, жижиг 4 нь 2x2 */
@media (max-width: 760px) {
  .blog-grid {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 260px repeat(2, 180px);
    gap: 10px;
  }
  .blog-card--large { grid-row: auto; grid-column: span 2; }
  .blog-card-panel { min-height: 52px; padding: 12px 10px; }
  .blog-card-panel h3 { font-size: 0.9rem; }
  .blog-card--large .blog-card-panel h3 { font-size: 1.3rem; }
}

/* Хулганагүй (хүрэлтийн) төхөөрөмж дээр тайлбарыг харуулахгүй */
@media (hover: none) {
  .blog-card:hover .blog-card-panel { background: rgba(31, 35, 35, 0.28); color: #fff; padding: 18px 20px; }
  .blog-card:hover .blog-card-panel p { max-height: 0; opacity: 0; margin: 0; }
}