/* =========================================
   VISTA 1 — INICIO
   Banco Central Auricoin
   ========================================= */

/* ---------- Grid de tarjetas ---------- */
.grid-tarjetas {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.contenido-principal__titulo {
  font-size: 30px;
  font-family: inherit;
}

.tarjeta {
  background: var(--gris-claro);
  border: 2px solid var(--dorado);
  border-radius: 0;
  overflow: hidden;
  transition: box-shadow 0.2s;
  min-height: 180px;
  display: flex;
  flex-direction: column;
}

.tarjeta:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.tarjeta__titulo {
  background: var(--navy);
  color: var(--blanco);
  padding: 10px 14px;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.tarjeta__imagen {
  width: 100%;
  object-fit: contain;
  display: block;
}

.tarjeta__enlace {
  display: block;
  padding: 12px 16px;
  color: var(--navy);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  background: var(--gris-claro);
}

.tarjeta__enlace:hover {
  color: var(--dorado);
  background: rgba(191, 145, 58, 0.08);
}

.tarjeta--vacia {
  border-color: transparent;
  background: transparent;
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .grid-tarjetas {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .grid-tarjetas {
    grid-template-columns: 1fr;
  }
}