/* Editorial research layout: readable controls and room for the paper figures. */

.research-container {
  --color-accent: #365b70;
  max-width: var(--max-width);
}

.research-container .page-header { padding: 34px 0 18px; }
.research-container .page-header h1 { font-size: 2.8rem; margin: 4px 0 12px; }
.research-container .section-nav {
  flex-wrap: wrap;
  gap: 8px 32px;
  font-size: 16px;
  padding-bottom: 0;
}
.research-container .section-nav a {
  min-height: 48px;
  padding: 10px 0 13px;
  margin-bottom: -1px;
  border-bottom: 2px solid transparent;
  color: var(--color-text-secondary);
  font-weight: 500;
}
.research-container .section-nav a[aria-current="location"] {
  color: var(--color-accent);
  border-bottom-color: currentColor;
}
.research-container .section-nav a:hover { color: var(--color-accent-hover); }
.research-container .papers-section { padding: 23px 0 24px; }
.research-container .papers-section-header {
  position: static;
  padding: 13px 0;
  background: #fff;
  border-top: 0;
  border-bottom: 1px solid #cbd4d8;
}
.research-container .papers-section-title { font-size: 1.65rem; }
.research-container .paper-card { padding: 28px 0; }
.research-container .paper-title { font-size: 1.28rem; line-height: 1.4; letter-spacing: -.015em; }
.research-container .paper-authors,
.research-container .paper-venue { font-size: 13px; line-height: 1.75; }
.research-container .paper-actions { gap: 23px; margin-top: 15px; }
.research-container .paper-link,
.research-container .abstract-toggle {
  min-height: 44px;
  padding: 6px 0;
  font-size: 15px;
  line-height: 1.5;
  gap: 8px;
}
.research-container .paper-arrow { font-size: 16px; line-height: 1; }
.research-container .abstract-toggle .chevron {
  width: 7px;
  height: 7px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: translateY(-2px) rotate(45deg);
}
.research-container .abstract-toggle.open .chevron { transform: translateY(2px) rotate(225deg); }
.research-container .abstract-text { max-width: 68ch; font-size: 15px; line-height: 1.8; }

.research-container .paper-feature {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 54%);
  gap: 44px;
  align-items: center;
  padding: 34px 0;
}
.research-container .paper-feature .paper-title {
  font-size: 1.45rem;
  line-height: 1.35;
  margin-bottom: 14px;
}
.paper-copy,
.paper-figure { min-width: 0; }
.figure-open {
  width: 100%;
  display: block;
  border: 0;
  padding: 0;
  background: #fff;
  cursor: zoom-in;
}
.figure-open img { width: 100%; max-height: 360px; object-fit: contain; }
.figure-open:hover img { opacity: .94; }
.research-container .paper-feature.figure-expanded { grid-template-columns: 1fr; gap: 24px; }
.paper-feature.figure-expanded .paper-figure { max-width: 960px; width: 100%; margin: 0 auto; }
.paper-feature.figure-expanded .figure-open { cursor: zoom-out; }
.paper-feature.figure-expanded .figure-open img { max-height: none; }

@media (max-width: 900px) {
  .research-container .paper-feature { grid-template-columns: minmax(0, 1fr) minmax(0, 51%); gap: 27px; }
  .research-container .paper-feature .paper-title { font-size: 1.25rem; }
}
@media (max-width: 760px) {
  .research-container .paper-feature { grid-template-columns: 1fr; gap: 24px; }
  .research-container .paper-feature .paper-title { font-size: 1.35rem; }
  .paper-figure { width: 100%; max-width: 640px; }
  .figure-open img { max-height: none; }
}
@media (prefers-reduced-motion: reduce) {
  html:has(.research-page) { scroll-behavior: auto; }
  .research-container .abstract-toggle .chevron { transition: none; }
}
@media print {
  .research-container .paper-feature { grid-template-columns: 1fr 48%; gap: 24px; }
}