/* Two clear beats: experience the prototype, then hear how people used it.
   Keep the evidence unframed and let spacing, not decoration, set the pace. */
.fns-prototype-research {
  --research-block-gap: 80px;
  --research-column-gap: clamp(32px, 5vw, 64px);
}
.fns-prototype-research .story-walkthrough,
.fns-prototype-research > .fns-research-intro,
.fns-prototype-research .case-research-board,
.fns-prototype-research .fns-paired-findings,
.fns-prototype-research .story-recordings {
  width: 100%;
  max-width: 930px;
  margin-inline: auto;
}
.fns-prototype-research .story-walkthrough { margin-block: 0; scroll-margin-top: 32px; }
.fns-prototype-research .story-walkthrough .case-final-flow-grid {
  grid-template-columns: minmax(240px, 280px) minmax(0, 1fr);
  gap: var(--research-column-gap);
  max-width: none;
  margin: 0;
  padding: 0;
}
.fns-prototype-research .case-final-player { width: 100%; max-width: 280px; margin: 0; }
.fns-prototype-research .case-final-flow-details { max-width: none; min-width: 0; }
.fns-prototype-research > .fns-research-intro {
  margin-top: var(--research-block-gap);
}
.fns-case-study .fns-prototype-research .fns-research-intro > .case-kicker {
  margin: 0 0 20px;
  font-size: 13px;
}
.fns-case-study .fns-prototype-research .fns-research-intro h2,
.fns-case-study .fns-prototype-research .fns-motion-intro h2 {
  margin: 0;
  font-size: clamp(32px, 3.6vw, 44px);
  line-height: 1.16;
  font-weight: 650;
  letter-spacing: -.03em;
  text-wrap: balance;
}
.fns-case-study .fns-prototype-research .fns-research-intro > .fns-prototype-connection,
.fns-case-study .fns-prototype-research .fns-motion-intro > p {
  margin: 20px 0 0;
  max-width: 540px;
  font-size: 18px;
  line-height: 1.6;
}
.fns-prototype-research .case-film-chapters {
  justify-content: flex-start;
  gap: 4px 24px;
  margin: 24px 0 0;
}
.fns-prototype-research .case-film-chapters button { font-size: 16px; }
.fns-prototype-research .case-film-chapters button:focus-visible {
  outline: 2px solid var(--case-blue-ink);
  outline-offset: 5px;
}

/* The prototype result and a single grouped list of what participants understood. */
.fns-prototype-research .case-research-board {
  grid-template-columns: minmax(240px, 280px) minmax(0, 1fr);
  gap: var(--research-column-gap);
  align-items: center;
  margin-block: 40px var(--research-block-gap);
}
.fns-prototype-research .case-preference strong.case-ratio { font-size: 64px; }
.fns-case-study .fns-prototype-research .case-preference > p {
  margin: 10px 0 0;
  font-size: 18px;
  line-height: 1.4;
}
.fns-prototype-research .case-research-positive {
  padding: 24px 28px;
  border-radius: 20px;
  background: #f1f5f7;
}
.fns-case-study .fns-prototype-research .case-research-positive h3 {
  margin: 0 0 18px;
  font-size: 18px;
  line-height: 1.4;
  font-weight: 600;
  letter-spacing: -.015em;
}
.fns-prototype-research .case-research-positive ul {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 17px;
  line-height: 1.5;
}

.fns-case-study .fns-prototype-research .fns-research-intro > .fns-session-meta {
  margin: 16px 0 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 10px;
  font-size: 16px;
  line-height: 1.5;
}
.fns-session-meta > span { white-space: nowrap; }
.fns-session-meta > [aria-hidden="true"] { color: #a6aeb7; }
.fns-prototype-research .case-research-positive li {
  display: flex;
  align-items: baseline;
  gap: 12px;
}
.fns-prototype-research .case-research-positive li svg {
  width: 20px;
  height: 20px;
  flex: 0 0 20px;
  align-self: flex-start;
  margin-top: 2px;
  color: var(--case-blue-ink);
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* Equal-weight findings: observation, evidence, response. */
.fns-prototype-research .fns-paired-findings {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: var(--research-column-gap);
  row-gap: 32px;
}
.fns-paired-findings > header { grid-column: 1 / -1; }
.fns-case-study .fns-prototype-research .fns-paired-findings > header h3,
.fns-case-study .fns-prototype-research .story-recordings > h3 {
  margin: 0;
  font-size: 28px;
  line-height: 1.3;
  font-weight: 600;
  letter-spacing: -.025em;
}
.fns-prototype-research .fns-paired-findings .story-visual-finding {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 20px;
  padding: 0;
  min-width: 0;
}
.fns-paired-findings .story-finding-stat {
  min-height: 48px;
  align-items: center;
  gap: 14px;
}
.fns-paired-findings .story-finding-stat > strong { font-size: 40px; flex-shrink: 0; }
.fns-case-study .fns-paired-findings .story-finding-stat h4 {
  max-width: none;
  margin: 0;
  font-size: 20px;
  font-weight: 600;
  line-height: 1.3;
}
.fns-paired-findings .story-visual-finding figure {
  width: 100%;
  max-width: 420px;
  align-self: center;
}
.fns-paired-findings .fns-finding-fix { padding-top: 4px; }
.fns-case-study .fns-paired-findings .fns-finding-fix h5 {
  margin: 0;
  color: var(--case-blue-ink);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: -.01em;
}
.fns-case-study .fns-paired-findings .fns-finding-fix p {
  margin: 8px 0 0;
  font-size: 17px;
  line-height: 1.55;
  letter-spacing: -.012em;
}

/* Interview clips are a distinct closing beat, not another finding. */
.fns-prototype-research .story-recordings { margin-top: var(--research-block-gap); }
.fns-prototype-research .case-interview-players {
  gap: var(--research-column-gap);
  margin-top: 28px;
}

@media (max-width: 700px) {
  .fns-prototype-research { --research-block-gap: 56px; }
  .fns-prototype-research .story-walkthrough .case-final-flow-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
  }
  .fns-prototype-research .case-final-flow-details { order: -1; }
  .fns-prototype-research .case-final-player { justify-self: center; }
  .fns-prototype-research .case-film-chapters {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-top: 20px;
    gap: 6px 22px;
  }
  .fns-prototype-research .case-film-chapters button { justify-self: start; }
  .fns-prototype-research .case-research-board {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
    margin-top: 40px;
  }
  .fns-prototype-research .case-preference strong.case-ratio { font-size: 60px; }
  .fns-prototype-research .case-research-positive { padding: 24px; }
  .fns-prototype-research .case-research-positive ul { gap: 12px 20px; }
  .fns-prototype-research .fns-paired-findings {
    grid-template-columns: minmax(0, 1fr);
    row-gap: 36px;
  }
  .fns-case-study .fns-prototype-research .fns-paired-findings > header h3,
  .fns-case-study .fns-prototype-research .story-recordings > h3 { font-size: 26px; }
  .fns-paired-findings .story-finding-stat { min-height: 0; }
  .fns-prototype-research .case-interview-players { gap: 24px; margin-top: 24px; }
}