.lab-masthead {
  background: #fff;
  border-bottom: 1px solid var(--teal-border);
}

.lab-masthead-inner {
  max-width: 980px;
  margin: 0 auto;
  padding: 1.75rem 2rem;
  display: grid;
  grid-template-columns: minmax(0, 19rem) minmax(0, 1fr);
  align-items: center;
  gap: 2rem;
}

/* Both supplied square logos have clear space above and below the artwork. */
.lab-logo {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  object-position: center;
}

.lab-masthead h1 {
  margin: 0 0 0.75rem;
  color: var(--navy);
  font-size: 2rem;
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: 0;
}

.lab-affiliation {
  margin: 0 0 0.5rem;
  color: var(--teal-dark);
  font-size: 0.85rem;
  font-weight: 600;
}

.lab-full-name {
  margin: 0;
  color: var(--text-mid);
  font-size: 1.05rem;
  line-height: 1.6;
}

.lab-vision {
  margin: 1rem 0 0;
  color: var(--text-mid);
  font-size: 0.95rem;
  line-height: 1.6;
}
.lab-vision strong { color: var(--teal-dark); }

.lab-intro {
  display: grid;
  grid-template-columns: 10rem minmax(0, 1fr);
  align-items: center;
  gap: 1.5rem;
  padding: 1.25rem 0;
  margin: 1.75rem 0 0.5rem;
  border-top: 1px solid var(--teal-border);
}
.lab-intro h3 {
  margin: 0 0 0.35rem;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0;
}
.lab-intro p {
  margin: 0 0 0.5rem;
  color: var(--text-mid);
  font-size: 0.95rem;
  line-height: 1.6;
}
.lab-intro-link {
  font-size: 0.9rem;
  font-weight: 600;
}
.lab-intro-link i { margin-left: 0.35rem; }

.lab-director .lab-name a { color: inherit; }

@media (max-width: 680px) {
  .lab-masthead-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 1rem;
    padding: 1.25rem 1.5rem 1.75rem;
    text-align: center;
  }
  .lab-masthead .lab-logo { width: 13rem; justify-self: center; }
  .lab-masthead h1 { font-size: 1.75rem; }
  .lab-full-name { font-size: 1rem; }
}

@media (max-width: 480px) {
  .lab-intro { grid-template-columns: minmax(0, 1fr); gap: 0.75rem; }
  .lab-intro .lab-logo { width: 11rem; }
}