/* ===== Sectores (grilla con overlay y botón al hover) ===== */
.sectors-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 25px;
  margin-top: 40px;
}

.sector-card {
  position: relative;
  display: block;
  overflow: hidden;
  border-radius: 14px;
  height: 260px;
  background: #fff;
  box-shadow: 0 4px 14px rgba(0,0,0,.08);
  border: 1px solid #ECECF1;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.sector-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 30px rgba(0,0,0,.12);
}

.sector-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.sector-card:hover .sector-img {
  transform: scale(1.06);
}

/* Overlay */
.sector-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 18px;
  background: linear-gradient(180deg, rgba(0,0,0,.55) 0%, rgba(0,0,0,.45) 100%);
  color: #fff;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.sector-card:hover .sector-overlay,
.sector-card:focus-visible .sector-overlay {
  opacity: 1;
}

.sector-title {
  font-size: clamp(18px, 2.4vw, 22px);
  font-weight: 800;
  margin: 0 0 12px;
  letter-spacing: 0.3px;
}

.sector-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  padding: 0 18px;
  border-radius: 999px;
  font-weight: 700;
  border: 2px solid #fff;
  background: #fff;
  color: var(--red);
  box-shadow: 0 6px 18px rgba(0,0,0,.18);
  transition: transform .15s ease, background .15s ease, color .15s ease;
}

.sector-btn:hover {
  transform: translateY(-2px);
}

/* Responsivo */
@media (max-width: 980px) {
  .sectors-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .sectors-grid { grid-template-columns: 1fr; }
}