.site-header nav {
  max-width: 1080px;
  grid-template-columns: repeat(6, minmax(0, 1fr));
}
.site-header .nav-link { overflow-wrap: anywhere; }

.science-section {
  padding-block: 80px;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 20px;
}

.science-intro { max-width: 760px; margin-bottom: 36px; }
.science-intro .eyebrow {
  font-size: .875rem;
  line-height: 1.6;
  letter-spacing: .11em;
  margin-bottom: 18px;
}
.science-intro h2 {
  font: 400 clamp(2.25rem, 4.5vw, 3.5rem)/1.13 var(--serif);
  color: var(--plum-dark);
  letter-spacing: -.03em;
  margin-bottom: 22px;
}
.science-intro h2 em { color: var(--plum); }
.science-intro > p:last-child {
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--muted);
  margin-bottom: 0;
}

.science-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}
.science-card {
  min-width: 0;
  overflow-wrap: anywhere;
  padding: clamp(22px, 2.5vw, 30px);
  background: var(--cream);
  border: 1px solid var(--line);
  border-top: 3px solid var(--gold);
  border-radius: 12px;
}
.science-card:nth-child(2) { background: #f5edf3; border-top-color: var(--plum); }
.science-card .science-label {
  font-size: .875rem;
  line-height: 1.6;
  font-weight: 600;
  color: var(--plum);
  margin-bottom: 15px;
}
.science-card h3 {
  font: 400 clamp(1.625rem, 2.5vw, 2rem)/1.2 var(--serif);
  color: var(--plum-dark);
  letter-spacing: -.02em;
  margin-bottom: 20px;
}
.science-card p:not(.science-label), .science-evidence p {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text);
  margin-bottom: 16px;
}
.science-card p:last-child, .science-evidence p:last-child { margin-bottom: 0; }
.science-card strong { color: var(--plum); font-weight: 600; }
.science-citation {
  color: var(--plum);
  font-size: .875rem;
  font-weight: 650;
  text-underline-offset: 3px;
  padding: 4px;
  white-space: nowrap;
}
.science-evidence {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 2.5fr);
  gap: 24px;
  padding: 28px 30px;
  margin-top: 24px;
  background: #f6efdf;
  border-left: 3px solid var(--gold);
  border-radius: 0 10px 10px 0;
}
.science-evidence h3 {
  font: 400 1.5rem/1.3 var(--serif);
  color: var(--plum);
  margin: 0;
}
.science-references { border-block: 1px solid var(--line); margin-top: 28px; }
.science-references summary {
  cursor: pointer;
  padding: 19px 8px;
  min-height: 56px;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.7;
  color: var(--plum);
}
.science-references summary span {
  display: inline-block;
  margin-left: 12px;
  font-size: .875rem;
  font-weight: 400;
  color: var(--muted);
}
.science-references ol { margin: 0; padding: 4px 20px 12px 30px; }
.science-references li {
  padding-left: 8px;
  margin-bottom: 18px;
  font-size: 1rem;
  line-height: 1.75;
  overflow-wrap: anywhere;
}
.science-references a { color: var(--plum); text-underline-offset: 4px; }
.science-references li > span { display: block; font-size: .875rem; color: var(--muted); }
.science-closing {
  max-width: 850px;
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--muted);
  margin: 24px 0 0;
}

@media (max-width: 1000px) {
  .site-header nav { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 860px) {
  .science-grid { grid-template-columns: 1fr; }
  .science-evidence { grid-template-columns: 1fr; gap: 14px; }
  .science-card h3 { font-size: 1.875rem; }
}
@media (max-width: 620px) {
  .site-header nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .site-header .header-cta { grid-column: auto; }
  .science-section { padding-block: 48px; }
  .science-intro { margin-bottom: 28px; }
  .science-intro > p:last-child { font-size: 1rem; }
  .science-evidence { padding: 22px; }
}