/* Top variants — table with waterfall background */
.trait-detail__variants {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.trait-detail__variants-title {
  margin: 0;
  padding-bottom: var(--space-sm);
}

.trait-detail__variants-scroll {
  max-height: 12rem;
  overflow-y: auto;
}

/* Waterfall layer — sits behind tbody rows */
.trait-detail__variants-body {
  position: relative;
}

.trait-detail__var-wf-layer {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  display: flex;
  flex-direction: column;
  padding-top: calc(1.75rem + 2px); /* offset for thead height + alignment */
}

.trait-detail__var-wf-zero {
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--color-border);
  opacity: 0.3;
}

.trait-detail__var-wf-row {
  flex: 1;
  position: relative;
}

.trait-detail__var-wf-bar {
  position: absolute;
  top: 0;
  bottom: 0;
  border-radius: 2px;
  opacity: 0.25;
}

/* Table sits on top of waterfall */
.trait-detail__var-table {
  position: relative;
  z-index: 1;
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
}

.trait-detail__var-table thead {
  position: sticky;
  top: 0;
  z-index: 2;
}

.trait-detail__var-table th {
  text-align: left;
  padding: var(--space-xs) var(--space-sm);
  border-bottom: 2px solid var(--color-border);
  color: var(--color-text-muted);
  font-weight: 600;
  white-space: nowrap;
  background: var(--color-surface);
}

.trait-detail__var-table td {
  padding: var(--space-xs) var(--space-sm);
  border-bottom: 1px solid var(--color-border);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background: transparent;
  line-height: 1.4;
}

.trait-detail__var-table tbody tr {
  border-bottom: 1px solid color-mix(in srgb, var(--color-border) 50%, transparent);
}

.trait-detail__var-link {
  color: var(--color-primary);
  text-decoration: none;

  &:hover {
    text-decoration: underline;
  }
}

.trait-detail__var-geno {
  font-weight: 600;
  color: var(--color-accent);
}

.trait-detail__var-impact {
  font-weight: 600;
}