/* ---------- RESEARCH SECTION ---------- */
.research-section {
  background: var(--bg-primary);
}

/* Each vertical carries its own accent, which every tile inside inherits. */
.research-vertical {
  margin-top: 44px;
}

.research-vertical:first-of-type {
  margin-top: 0;
}

.research-vertical[data-market='private'] {
  --market-accent: var(--gold);
  --market-accent-soft: rgba(234, 179, 8, 0.35);
  --market-accent-dim: var(--gold-dim);
}

.research-vertical[data-market='public'] {
  --market-accent: var(--bull-green);
  --market-accent-soft: rgba(34, 197, 94, 0.35);
  --market-accent-dim: var(--bull-green-dim);
}

.research-vertical-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 22px;
}

.research-vertical-tag {
  display: inline-flex;
  align-items: center;
  padding: 7px 14px;
  border: 1px solid var(--market-accent-soft);
  border-radius: 6px;
  background: var(--market-accent-dim);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--market-accent);
  white-space: nowrap;
}

.research-vertical-rule {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--market-accent-soft), transparent);
}

.research-vertical-count {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-muted);
  white-space: nowrap;
}

.research-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

/* A vertical with a single report shouldn't stretch it the width of the
   container, so hold it to the width it would have had in a filled row. */
.research-grid:has(> .research-card:only-child) {
  grid-template-columns: minmax(320px, 564px);
}

.research-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border-accent);
  border-radius: 8px;
  padding: 28px;
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.research-card:hover,
.research-card:focus-within {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
}

.research-title {
  font-size: 1.28rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
  line-height: 1.35;
  letter-spacing: -0.01em;
}

.research-subtitle {
  font-size: 0.85rem;
  font-style: italic;
  color: var(--text-secondary);
  margin-bottom: 10px;
  line-height: 1.5;
}

.research-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 12px;
  font-family: var(--font-mono);
}

.research-excerpt {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 18px;
  flex-grow: 1;
}

.research-footer {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.research-link {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--market-accent, var(--bull-green));
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0;
  border: 0;
  background: none;
  cursor: pointer;
  transition: gap var(--transition-fast);
}

.research-link:hover {
  gap: 12px;
}

.research-card:hover .research-link {
  gap: 12px;
}

.research-link:focus-visible {
  outline: 2px solid var(--market-accent, var(--bull-green));
  outline-offset: 4px;
  border-radius: 3px;
}