/* Floor–Ceiling Research: scoped additions to the existing visual system. */
.floor-ceiling-research .research-container {
  max-width: 1080px;
}

.floor-ceiling-research .research-hero {
  padding: 44px 0 58px;
}

.research-breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-bottom: 40px;
  color: var(--muted);
  font-size: 0.84rem;
}

.research-breadcrumbs a {
  color: var(--slate);
}

.floor-ceiling-research h1 {
  max-width: 25ch;
  margin-bottom: 22px;
  font-size: clamp(2.25rem, 5vw, 3.8rem);
}

.research-intro {
  max-width: 83ch;
  margin-bottom: 0;
  color: var(--muted);
}

.research-jump-links {
  display: flex;
  flex-wrap: wrap;
  column-gap: 30px;
  row-gap: 12px;
  margin-top: 34px;
  padding-top: 24px;
  border-top: 1px solid var(--line-strong);
}

.research-jump-links a {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  min-height: 44px;
  color: var(--navy);
  font-size: 0.92rem;
  font-weight: 650;
  text-decoration: none;
}

.research-jump-links a:hover {
  text-decoration: underline;
}

.research-jump-links a span {
  color: #76591f;
  font-size: 0.75rem;
  font-variant-numeric: tabular-nums;
}

.research-papers {
  background: var(--paper);
}

.research-paper {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  column-gap: 45px;
  padding-block: 55px;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 110px;
}

.research-paper:last-child {
  border-bottom: 0;
}

.research-number {
  display: block;
  margin-bottom: 6px;
  color: #88692c;
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 2.6rem;
  line-height: 1.1;
}

.research-paper-index p {
  color: var(--slate);
  font-size: 0.83rem;
  font-weight: 700;
}

.research-paper-body {
  min-width: 0;
}

.research-status {
  display: inline-block;
  margin: 0 0 16px;
  padding: 4px 10px;
  border: 1px solid #d5c7a5;
  border-radius: 5px;
  background: #faf6eb;
  color: #624b21;
  font-size: 0.76rem;
  font-weight: 650;
  line-height: 1.6;
}

.research-paper h2 {
  max-width: 34ch;
  margin-bottom: 15px;
  font-size: clamp(1.6rem, 2.9vw, 2.2rem);
  line-height: 1.2;
  text-wrap: pretty;
}

.research-meta {
  display: flex;
  flex-wrap: wrap;
  column-gap: 8px;
  row-gap: 2px;
  margin: 0 0 21px;
  color: var(--muted);
  font-size: 0.8rem;
  font-variant-numeric: tabular-nums;
}

.research-abstract {
  max-width: 76ch;
  margin-bottom: 16px;
}

.research-topics {
  margin: 0 0 22px;
  color: var(--slate);
  font-size: 0.83rem;
}

.research-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  align-items: center;
}

.research-actions .button {
  gap: 12px;
  width: auto;
  border-radius: 8px;
  font-size: 0.88rem;
}

.research-file-size {
  font-size: 0.75rem;
  font-weight: 450;
  opacity: 0.85;
}

.research-download {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  min-height: 44px;
  font-size: 0.87rem;
  font-weight: 600;
}

.research-supplement {
  margin-top: 32px;
  padding: 22px 0 2px 24px;
  border-left: 3px solid #d6c495;
}

.research-supplement-label {
  margin-bottom: 10px;
  color: #6f5625;
  font-size: 0.77rem;
  font-weight: 650;
}

.research-supplement h3 {
  max-width: 42ch;
  font-size: 1.3rem;
  line-height: 1.3;
}

.research-supplement > p:not([class]) {
  max-width: 76ch;
  color: var(--muted);
  font-size: 0.93rem;
}

.research-release-section {
  padding-block: 40px 54px;
  border-top: 1px solid var(--line);
}

.research-release-note {
  max-width: 80ch;
  margin-left: 195px;
  color: var(--muted);
  font-size: 0.88rem;
}

.research-release-note h2 {
  font-size: 1.35rem;
}

@media (max-width: 760px) {
  .floor-ceiling-research .research-hero {
    padding: 30px 0 38px;
  }

  .research-breadcrumbs {
    margin-bottom: 28px;
  }

  .research-jump-links {
    column-gap: 22px;
    row-gap: 4px;
    margin-top: 24px;
    padding-top: 18px;
  }

  .research-paper {
    grid-template-columns: minmax(0, 1fr);
    gap: 20px;
    padding-block: 36px;
  }

  .research-paper-index {
    display: flex;
    gap: 12px;
    align-items: center;
  }

  .research-number {
    margin: 0;
    font-size: 1.8rem;
  }

  .research-paper-index p {
    margin: 0;
  }

  .research-supplement {
    padding-left: 18px;
  }

  .research-release-note {
    margin-left: 0;
  }
}

@media print {
  .floor-ceiling-research .research-hero {
    padding: 0 0 20px;
    background: #fff;
  }

  .research-jump-links,
  .research-breadcrumbs {
    display: none;
  }

  .research-paper {
    display: block;
    padding-block: 24px;
  }

  .research-paper-index {
    display: none;
  }

  .research-paper h2,
  .research-status {
    break-after: avoid;
  }

  .research-actions {
    display: none;
  }

  .research-release-note {
    margin-left: 0;
  }
}