.certs-hero { padding: 60px 0; }
.certs-hero .section-sub { max-width: 640px; }

.certs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}
.cert-block { padding: 26px; }
.cert-block-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}
.cert-tag {
  display: inline-block;
  background: var(--sage);
  color: var(--green-700);
  border: 1px solid var(--sage-dark);
  border-radius: 999px;
  padding: 4px 12px;
  font-size: 12px;
  margin-bottom: 10px;
}
.cert-block h3 { font-size: 19px; margin: 0 0 6px; }
.cert-block p { color: var(--ink-soft); font-size: 14px; line-height: 1.6; margin: 0; max-width: 380px; }
.cert-block .btn { white-space: nowrap; }

.cert-viewer {
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--paper-dim);
}
.cert-viewer iframe {
  width: 100%;
  height: 560px;
  border: 0;
  display: block;
}

@media (max-width: 900px) {
  .certs-grid { grid-template-columns: 1fr; }
  .cert-viewer iframe { height: 420px; }
}