.hero-section {
  position: relative;
  width: 100%;
  height: 300px;
  background-image: url('../images/hero-bg.jpg');
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: white;
  margin-bottom: 30px;
  border-radius: 0 0 15px 15px;
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.5);
}

.hero-content {
  position: relative;
  max-width: 800px;
  padding: 0 20px;
  z-index: 2;
}

.hero-title {
  font-size: 2.5rem;
  margin: 0 0 15px 0;
}

.hero-desc {
  font-size: 1.1rem;
  line-height: 1.6;
}

/* Mobile chỉnh hero */
@media (max-width: 768px) {
  .hero-section {
    height: auto;
    padding: 40px 0;
  }
  .hero-title {
    font-size: 2rem;
  }
  .hero-desc {
    font-size: 1rem;
  }
}