.research-main {
  padding-top: 1.5rem;
  padding-bottom: 4rem;
}

.research-hero {
  max-width: 900px;
  margin: 1rem auto 2rem;
  text-align: center;
}

.research-hero p {
  max-width: 760px;
  margin-right: auto;
  margin-left: auto;
}

.research-article {
  max-width: 980px;
  margin: 0 auto;
}

.research-article > section,
.research-summary {
  margin: 1.5rem 0;
  padding: clamp(1.25rem, 3vw, 2rem);
  border: 1px solid #dbe5ef;
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 10px 30px rgba(25, 67, 101, 0.06);
}

.research-summary {
  border-top: 5px solid #1685c7;
}

.research-card-grid,
.finding-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.research-card {
  display: block;
  padding: 1.25rem;
  border: 1px solid #cfdfec;
  border-radius: 14px;
  color: #17324a;
  text-decoration: none;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.research-card:hover,
.research-card:focus-visible {
  border-color: #1685c7;
  transform: translateY(-2px);
}

.research-card h3 {
  margin: 0.35rem 0;
}

.finding-type {
  display: inline-block;
  color: #0b6399;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.finding-grid > div {
  padding: 1rem;
  border-radius: 12px;
  background: #edf7fc;
}

.finding-grid strong,
.finding-grid span {
  display: block;
}

.finding-grid strong {
  color: #075f91;
  font-size: clamp(1.25rem, 3vw, 1.8rem);
  line-height: 1.2;
}

.finding-grid span {
  margin-top: 0.4rem;
  color: #40586b;
  font-size: 0.9rem;
}

.caveat {
  margin-top: 1rem;
  padding: 1rem;
  border-left: 4px solid #d47d09;
  background: #fff8ea;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid #dbe5ef;
  border-radius: 12px;
}

.research-article table {
  width: 100%;
  border-collapse: collapse;
  font-variant-numeric: tabular-nums;
}

.research-article caption {
  padding: 0.85rem;
  color: #40586b;
  font-weight: 700;
  text-align: left;
}

.research-article th,
.research-article td {
  padding: 0.75rem;
  border-top: 1px solid #dbe5ef;
  text-align: left;
  vertical-align: top;
}

.research-article thead th {
  background: #edf7fc;
}

.research-article code {
  overflow-wrap: anywhere;
}

.download-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin: 1rem 0;
}

.download-link {
  display: inline-flex;
  padding: 0.7rem 0.9rem;
  border-radius: 10px;
  background: #0b6da6;
  color: #fff;
  font-weight: 700;
  text-decoration: none;
}

.download-link:hover,
.download-link:focus-visible {
  background: #07547f;
}

.definition-list li + li {
  margin-top: 0.75rem;
}

.stat-definitions {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
}

.stat-definitions div {
  padding: 1rem;
  border-radius: 12px;
  background: #edf7fc;
}

.stat-definitions dt {
  color: #40586b;
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
}

.stat-definitions dd {
  margin: 0.25rem 0 0;
  color: #075f91;
  font-size: 1.2rem;
  font-weight: 800;
}

.bar-chart {
  display: grid;
  gap: 0.85rem;
}

.bar-chart > div {
  display: grid;
  grid-template-columns: minmax(170px, 1fr) minmax(160px, 3fr) 2rem;
  align-items: center;
  gap: 0.7rem;
}

.bar-chart i {
  display: block;
  width: var(--bar);
  min-width: 1rem;
  height: 1rem;
  border-radius: 999px;
  background: linear-gradient(90deg, #1685c7, #28b5cb);
}

.update-log {
  padding: 1rem;
  border-radius: 12px;
  background: #f4f7fa;
}

.update-log p {
  margin-bottom: 0;
}

@media (max-width: 760px) {
  .research-card-grid,
  .finding-grid,
  .stat-definitions {
    grid-template-columns: 1fr;
  }

  .bar-chart > div {
    grid-template-columns: 1fr 2rem;
  }

  .bar-chart i {
    grid-column: 1 / -1;
    grid-row: 2;
  }

  .research-article th,
  .research-article td {
    padding: 0.6rem;
    font-size: 0.88rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .research-card {
    transition: none;
  }
}