.source-shelf .interaction-board {
  margin-block: 36px 56px;
  scroll-margin-top: 116px;
}

.interaction-board h2 {
  font: 400 clamp(30px, 4vw, 42px)/1.1 Georgia, serif;
  margin-bottom: 8px;
}

.interaction-board .interaction-intro {
  color: var(--view-muted, #586159);
  margin: 0 0 22px;
}

.interaction-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  align-items: start;
}

.interaction-card {
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--view-border, #d9ded4);
  border-radius: 16px;
  background: transparent;
  color: var(--view-text, #202920);
  font-family: Arial, sans-serif;
}

.interaction-media img {
  display: block;
  width: 100%;
  height: auto;
}

.interaction-copy {
  padding: 12px 14px;
}

.interaction-copy h3 {
  display: flex;
  gap: 8px;
  align-items: center;
  margin: 0 0 3px;
  font: 700 16px/1.3 Arial, sans-serif;
}

.interaction-copy h3 svg {
  flex: 0 0 18px;
  stroke: var(--view-text, #355841);
}

.interaction-copy a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: inherit;
  font: 600 14px/1.2 Arial, sans-serif;
  text-underline-offset: 3px;
}

.interaction-copy a:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 2px;
}

@media (max-width: 900px) {
  .interaction-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 520px) {
  .interaction-grid { grid-template-columns: 1fr; }
}