/* ============================================================
   RESEARCH.CSS
   ============================================================ */

.research-summary-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.research-summary-card {
  padding: 1.2rem 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  box-shadow: 0 4px 18px var(--shadow-color);
}

.research-summary-number {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  color: var(--text-heading);
  line-height: 1;
}

.research-summary-label {
  margin-top: 0.35rem;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Filter Tabs */
.filter-tabs {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.filter-btn {
  padding: 0.4rem 1rem;
  border-radius: 100px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  transition: background-color 0.15s, color 0.15s, border-color 0.15s;
  cursor: pointer;
}

.filter-btn:hover { color: var(--accent-blue); border-color: var(--accent-blue); }
.filter-btn.active { background: var(--accent-blue); color: #fff; border-color: var(--accent-blue); }

/* Research topic cards */
.research-topic-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
}

.research-topic-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  overflow: hidden;
  display: grid;
  grid-template-columns: 44% 1fr;
  min-height: 290px;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}

.research-topic-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px var(--shadow-color);
  border-color: var(--accent-blue);
}

.research-topic-media {
  display: block;
  background: linear-gradient(135deg, var(--accent-blue-soft), var(--bg-secondary));
  overflow: hidden;
}

.research-topic-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.research-topic-media img[src*="/assets/icons/"] {
  object-fit: contain;
  padding: 1rem;
}

.research-topic-card:hover .research-topic-media img { transform: scale(1.04); }

.research-topic-body {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
}

.research-topic-body h3 {
  font-size: 1.15rem;
  margin-bottom: 0.55rem;
}

.research-topic-body h3 a {
  color: var(--text-heading);
  text-decoration: none;
}

.research-topic-body h3 a:hover { color: var(--accent-blue); }

.research-topic-body p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.research-topic-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: auto;
  margin-bottom: 1rem;
}

.research-readmore {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  width: fit-content;
  font-weight: 700;
  font-size: 0.86rem;
  color: var(--accent-blue);
  text-decoration: none;
  transition: gap 0.15s;
}

.research-readmore:hover { gap: 0.5rem; text-decoration: none; }

.research-readmore::after {
  content: '→';
  font-size: 0.9em;
}

/* Research theme card bullet points */
.research-topic-bullets {
  list-style: none;
  padding: 0;
  margin: 0 0 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.research-topic-bullets li {
  display: flex;
  align-items: flex-start;
  gap: 0.55rem;
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

.research-topic-bullets li::before {
  content: '';
  width: 5px;
  height: 5px;
  background: var(--accent-blue);
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 0.45em;
}

/* Publication Cards */
.pub-list { display: flex; flex-direction: column; gap: 1.25rem; }
.research-output-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.25rem; }

.pub-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
  display: grid;
  grid-template-columns: 180px 1fr;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}

.research-output-card {
  grid-template-columns: 1fr;
  min-height: 100%;
}

.research-output-card:hover { transform: translateY(-3px); }

.research-output-thumb {
  display: block;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: linear-gradient(135deg, var(--accent-blue-soft), var(--bg-secondary));
  border-bottom: 1px solid var(--border-color);
}

.research-output-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.35s ease;
}

.research-output-thumb img[src*="/assets/icons/"] {
  object-fit: contain;
  padding: 1rem;
}

.research-output-card:hover .research-output-thumb img {
  transform: scale(1.03);
}

.research-output-card .pub-body {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.research-output-card .pub-actions { margin-top: auto; }
.research-output-card .btn { padding: 0.35rem 0.75rem; font-size: 0.76rem; border-width: 1px; }

.pub-card:hover {
  transform: translateX(3px);
  box-shadow: 0 4px 24px var(--shadow-color);
  border-color: var(--accent-blue);
}

.pub-thumb {
  width: 180px;
  height: 140px;
  object-fit: cover;
  flex-shrink: 0;
}

.pub-thumb-placeholder {
  width: 180px;
  height: 140px;
  background: linear-gradient(135deg, var(--accent-blue-soft), var(--bg-secondary));
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}

.pub-thumb-placeholder svg { width: 40px; height: 40px; color: var(--accent-blue); opacity: 0.5; }

.pub-body { padding: 1.25rem; }

.pub-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.6rem;
  flex-wrap: wrap;
}

.pub-type {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-blue);
  background: var(--accent-blue-soft);
  padding: 0.15rem 0.55rem;
  border-radius: 4px;
}

.pub-year {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 500;
}

.pub-title {
  font-size: 0.97rem;
  font-weight: 600;
  color: var(--text-heading);
  line-height: 1.4;
  margin-bottom: 0.4rem;
  display: block;
  text-decoration: none !important;
  transition: color 0.15s;
}

.pub-title:hover { color: var(--accent-blue); }

.pub-authors {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
  font-style: italic;
}

.pub-authors strong { color: var(--text-secondary); font-style: normal; font-weight: 600; }

.pub-venue {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
}

.pub-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  align-items: center;
}

.abstract-toggle {
  font-size: 0.78rem;
  color: var(--text-muted);
  display: flex; align-items: center; gap: 0.25rem;
  cursor: pointer;
  transition: color 0.15s;
  padding: 0;
  border: none;
  background: none;
  font-family: inherit;
}

.abstract-toggle:hover { color: var(--accent-blue); }
.abstract-toggle svg { width: 13px; height: 13px; transition: transform 0.2s; }
.abstract-toggle.open svg { transform: rotate(180deg); }

.pub-abstract {
  display: none;
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border-color);
  font-size: 0.83rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.pub-abstract.open { display: block; }

/* Research detail pages */
.research-detail-hero {
  display: grid;
  grid-template-columns: 1fr 3fr;
  grid-template-areas:
    "title title"
    "body  image";
  column-gap: 2.5rem;
  row-gap: 1.75rem;
}

.research-detail-title-block {
  grid-area: title;
}

.research-detail-body {
  grid-area: body;
  padding-top: 0.25rem;
}

.research-detail-kicker {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent-blue);
  margin-bottom: 0.5rem;
}

.research-detail-hero p {
  color: var(--text-secondary);
  line-height: 1.75;
}

.research-detail-meta {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-wrap: wrap;
  margin: 0.85rem 0 1rem;
  color: var(--text-muted);
  font-size: 0.84rem;
}

.research-detail-meta span:first-child {
  font-weight: 700;
  color: var(--text-secondary);
}

.research-detail-divider {
  width: 2px;
  height: 12px;
  background: var(--border-strong);
  border-radius: 1px;
}

.research-share-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 1.2rem;
}

.research-share-label {
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

.research-share-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.38rem 0.78rem;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 700;
  text-decoration: none;
}

.research-share-btn:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
  background: var(--accent-blue-soft);
  text-decoration: none;
}

.research-share-btn svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

.research-detail-image {
  grid-area: image;
  border-radius: 14px;
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  box-shadow: 0 10px 34px var(--shadow-color);
  overflow: hidden;
}

.research-detail-image img {
  width: 100%;
  height: auto;
  object-fit: contain;
  display: block;
}

.research-detail-image img[src*="/assets/icons/"] {
  object-fit: contain;
  padding: 1.5rem;
}

.research-figure-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
}

.research-figure-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
}

.research-figure-card img {
  width: 100%;
  height: auto;
  max-height: 420px;
  object-fit: contain;
  background: linear-gradient(135deg, var(--accent-blue-soft), var(--bg-secondary));
  display: block;
}

.research-figure-card img[src*="/assets/icons/"] {
  object-fit: contain;
  padding: 1rem;
}

.research-figure-card figcaption {
  padding: 1rem;
  color: var(--text-secondary);
  font-size: 0.86rem;
  line-height: 1.55;
}

.research-detail-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 1.5rem;
}

.research-panel {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.25rem;
}

.research-panel h2,
.research-panel h3 {
  margin-bottom: 0.75rem;
}

.research-panel p,
.research-panel li {
  color: var(--text-secondary);
  font-size: 0.94rem;
}

.research-panel ul {
  display: grid;
  gap: 0.55rem;
  list-style: disc;
  padding-left: 1.1rem;
}

.related-output-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.related-output-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1rem;
}

.related-output-card h3 {
  font-size: 0.98rem;
  margin-bottom: 0.45rem;
}

.related-output-card p {
  font-size: 0.86rem;
  color: var(--text-secondary);
  margin-bottom: 0.8rem;
}

.research-backlink {
  display: inline-flex;
  margin-bottom: 1.5rem;
  font-size: 0.88rem;
  font-weight: 700;
  text-decoration: none;
}

@media (max-width: 900px) {
  .research-summary-grid { grid-template-columns: 1fr; }
  .research-detail-hero {
    grid-template-columns: 1fr;
    grid-template-areas:
      "title"
      "body"
      "image";
  }
  .research-topic-grid,
  .research-output-grid,
  .research-figure-grid,
  .related-output-grid,
  .research-detail-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .research-topic-card { grid-template-columns: 1fr; }
  .research-topic-media { min-height: 210px; }
  .pub-card { grid-template-columns: 1fr; }
  .pub-thumb, .pub-thumb-placeholder { width: 100%; height: 160px; }
}