/* === CERTIFICADOS === */
.certificates {
  padding: 8rem 0;
  background: var(--light-tertiary-color);
}

.certificates__content {
  text-align: center;
}

.certificates-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 3rem;
  padding: 2rem 0;
}

.certificate-card {
  position: relative;
  height: 350px;
  perspective: 1000px;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

.certificate-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.certificate-front,
.certificate-back {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  background: white;
  transition: transform 0.6s ease;
}

.certificate-front {
  transform: rotateY(0deg);
}

.certificate-back {
  transform: rotateY(180deg);
  background: var(--gradient-light);
}

.certificate-card:hover .certificate-front {
  transform: rotateY(-180deg);
}

.certificate-card:hover .certificate-back {
  transform: rotateY(0deg);
}

.certificate-front img {
  width: 120px;
  margin-bottom: 2rem;
}

.certificate-front h3 {
  font-size: 1.8rem;
  color: var(--secondary-color);
  text-align: center;
}

.certificate-back p {
  margin-bottom: 2rem;
  text-align: center;
}

/* Layout de 2 colunas apenas para mobile */
@media (max-width: 767px) {
  .certificates-grid {
    grid-template-columns: repeat(2, 1fr); /* 2 colunas */
    gap: 1.5rem;
  }
  
  .certificate-card {
    height: 300px; /* Altura um pouco menor para mobile */
  }
  
  .certificate-front,
  .certificate-back {
    padding: 1.5rem; /* Padding reduzido */
  }
  
  .certificate-front img {
    width: 80px; /* Imagem menor */
    margin-bottom: 1rem;
  }
  
  .certificate-front h3 {
    font-size: 1.4rem; /* Fonte menor */
  }
}

/* Ajustes para telas muito pequenas (menos de 400px) */
@media (max-width: 400px) {
  .certificates-grid {
    grid-template-columns: 1fr; /* Volta para 1 coluna */
  }
}