.certification-main {
  width: 100%;
  background: #fff;
  display: flex;
  flex-direction: column;
  gap: 48px;
  padding: 64px;
  box-sizing: border-box;
  font-family: Inter, sans-serif;
  animation: fadeIn 0.6s ease;
}

.certification-header {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-width: 960px;
}

.certification-title {
  margin: 0;
  font-size: 36px;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 120%;
  color: #1e1e1e;
}

.certification-subtitle {
  margin: 0;
  font-size: 18px;
  line-height: 140%;
  color: #757575;
  max-width: 560px;
}

.certification-grid {
  display: grid;
  gap: 32px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  width: 100%;
}

.certificate-card {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  background: #fff;
  border: 1px solid #d9d9d9;
  border-radius: 8px;
  overflow: hidden;
  transition: border-color 0.25s ease, box-shadow 0.25s ease,
    transform 0.25s ease;
  color: inherit;
  min-height: 100%;
}

.certificate-card:hover {
  border-color: #4a90e2;
  box-shadow: 0 8px 40px rgba(6, 118, 247, 0.25);
  transform: translateY(-2px);
}

.certificate-card:focus-visible {
  outline: 2px solid #4a90e2;
  outline-offset: 2px;
}

.certificate-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: contain;
  display: block;
}

.certificate-meta {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.certificate-name {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.2;
  color: #1e1e1e;
}

.certificate-issuer {
  font-size: 14px;
  color: #757575;
}

@media (max-width: 900px) {
  .certification-main {
    padding: 56px 48px;
  }
}

@media (max-width: 640px) {
  .certification-main {
    padding: 48px 32px;
    gap: 40px;
  }
  .certification-title {
    font-size: 32px;
  }
}

@media (max-width: 480px) {
  .certification-main {
    padding: 40px 20px;
    gap: 32px;
  }
  .certification-title {
    font-size: 28px;
  }
  .certification-grid {
    gap: 24px;
  }
}

/* Simple fade in */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}