.reference-groups {
  padding-top: 18px;
}

.reference-group-heading {
  position: relative;
  width: min(1160px, calc(100% - 48px));
  margin: 68px auto 24px;
  padding: 22px 0 0;
  border-top: 1px solid rgba(215, 166, 76, 0.28);
}

.reference-group-heading::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 78px;
  height: 2px;
  background: linear-gradient(90deg, #edc66f, #8e6427);
}

.reference-group-heading span {
  display: block;
  margin-bottom: 7px;
  color: #d7a64c;
  font-size: 0.64rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.reference-group-heading h3 {
  margin: 0;
  color: #f5f6f8;
  font-family: "Playfair Display", serif;
  font-size: clamp(1.55rem, 2.5vw, 2.05rem);
  font-weight: 600;
}

.reference-group-heading p {
  max-width: 630px;
  margin: 8px 0 0;
  color: #aeb7c2;
  font-size: 0.86rem;
  line-height: 1.65;
}

.reference-groups .reference-project:first-child + .reference-group-heading { margin-top: 42px; }

@media (max-width: 520px) {
  .reference-group-heading { width: min(100% - 32px, 1160px); margin-top: 46px; }
  .reference-group-heading h3 { font-size: 1.4rem; }
  .reference-group-heading p { font-size: 0.79rem; }
}