/* =====================================================
   ===== RESEARCH PAGE — FLAGSHIP REDESIGN =====
   ===================================================== */

/* Research hero video background */
.research-hero-video .hero-video-layer {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  background:
    radial-gradient(circle at 18% 20%, rgba(0, 180, 216, 0.24) 0%, rgba(0, 180, 216, 0) 42%),
    radial-gradient(circle at 82% 78%, rgba(201, 168, 76, 0.22) 0%, rgba(201, 168, 76, 0) 46%),
    #081a2b;
}

.research-hero-video .hero-bg-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0;
  transition: opacity 1.4s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: opacity;
  pointer-events: none;
  filter: none;
  transform: none;
  image-rendering: auto;
  backface-visibility: hidden;
  -webkit-font-smoothing: antialiased;
}

.research-hero-video .hero-bg-video.is-active {
  opacity: 1;
}

.research-hero-video .hero-overlay {
  z-index: 2;
  background:
    linear-gradient(
      180deg,
      rgba(8, 26, 43, 0.42) 0%,
      rgba(8, 26, 43, 0.2) 35%,
      rgba(8, 26, 43, 0.38) 100%
    ),
    linear-gradient(120deg, rgba(11, 60, 93, 0.12) 0%, rgba(0, 180, 216, 0.04) 100%);
}

/* ===== SHARED SECTION HEADERS ===== */
.research-section-head {
  text-align: center;
  max-width: 760px;
  margin: 0 auto var(--space-12);
}

.research-eyebrow {
  display: inline-block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-gold-dark);
  margin-bottom: var(--space-3);
}

.research-eyebrow-inverse {
  color: var(--color-gold);
}

.research-section-head .section-title {
  margin-bottom: var(--space-4);
}

.research-section-sub {
  color: var(--text-secondary);
  font-size: var(--font-size-lg);
  line-height: var(--line-height-relaxed);
  max-width: 640px;
  margin: 0 auto;
  text-wrap: balance;
}

/* ===== RESEARCH AT A GLANCE ===== */
.research-glance {
  background: var(--color-primary-dark);
  padding: var(--space-16) 0;
  position: relative;
  overflow: hidden;
}

.research-glance::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 12% 0%, rgba(0, 180, 216, 0.14) 0%, transparent 45%),
    radial-gradient(circle at 88% 100%, rgba(201, 168, 76, 0.12) 0%, transparent 45%);
  pointer-events: none;
}

.research-glance-grid {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-8);
}

.research-glance-stat {
  text-align: center;
  padding: var(--space-4) var(--space-2);
  border-left: 1px solid rgba(255, 255, 255, 0.1);
}

.research-glance-stat:first-child {
  border-left: none;
}

.research-glance-stat strong {
  display: block;
  font-size: clamp(2.25rem, 4vw, 3rem);
  font-weight: var(--font-weight-bold);
  color: var(--color-gold);
  line-height: 1.1;
  margin-bottom: var(--space-2);
  font-variant-numeric: tabular-nums;
}

.research-glance-label {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.72);
  letter-spacing: 0.04em;
}

/* ===== FOCUS AREAS ===== */
.research-focus {
  padding: var(--section-padding) 0;
  background: var(--bg-secondary);
}

.research-focus-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
}

.research-focus-card {
  padding: var(--space-10);
  border-radius: var(--card-radius);
  background: var(--bg-primary);
  border: 1px solid rgba(0, 0, 0, 0.07);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  transition:
    box-shadow 0.45s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.45s cubic-bezier(0.16, 1, 0.3, 1),
    border-color 0.45s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
}

.research-focus-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--color-gold), var(--color-secondary));
}

.research-focus-card:hover {
  box-shadow: 0 16px 48px rgba(8, 26, 43, 0.16);
  transform: translateY(-6px);
  border-color: rgba(201, 168, 76, 0.35);
}

.focus-index {
  position: absolute;
  top: var(--space-6);
  right: var(--space-8);
  font-size: clamp(2.5rem, 4vw, 3.5rem);
  font-weight: var(--font-weight-bold);
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(11, 60, 93, 0.14);
  pointer-events: none;
  transition: -webkit-text-stroke-color 0.45s cubic-bezier(0.16, 1, 0.3, 1);
}

.research-focus-card:hover .focus-index {
  -webkit-text-stroke-color: rgba(201, 168, 76, 0.5);
}

.research-focus-card .focus-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: var(--text-inverse);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-5);
  transition: transform 0.45s cubic-bezier(0.16, 1, 0.3, 1);
}

.research-focus-card:hover .focus-icon {
  transform: scale(1.08) rotate(-4deg);
}

.research-focus-card h3 {
  font-size: var(--font-size-2xl);
  color: var(--color-primary);
  margin-bottom: var(--space-4);
  padding-right: var(--space-16);
  text-wrap: balance;
}

.research-focus-card p {
  color: var(--text-secondary);
  line-height: var(--line-height-relaxed);
}

.focus-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-5);
}

.focus-tags span {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  background: rgba(11, 60, 93, 0.06);
  border: 1px solid rgba(11, 60, 93, 0.12);
  color: var(--color-primary);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  letter-spacing: 0.03em;
}

/* ===== INNOVATION PIPELINE ===== */
.research-pipeline {
  padding: var(--section-padding) 0;
  background:
    radial-gradient(circle at 85% 15%, rgba(0, 180, 216, 0.1) 0%, transparent 40%),
    radial-gradient(circle at 10% 90%, rgba(201, 168, 76, 0.08) 0%, transparent 40%),
    var(--color-primary-dark);
  color: var(--text-inverse);
}

.research-pipeline .section-title {
  color: var(--text-inverse);
}

.research-pipeline .section-title::after {
  background: var(--color-gold);
}

.research-pipeline .research-section-sub {
  color: rgba(255, 255, 255, 0.72);
}

.pipeline-track {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-8);
  position: relative;
  counter-reset: pipeline;
  margin: 0;
  padding: 0;
}

/* connective line behind the nodes */
.pipeline-track::before {
  content: "";
  position: absolute;
  top: 32px;
  left: 8%;
  right: 8%;
  height: 2px;
  background: linear-gradient(
    90deg,
    rgba(201, 168, 76, 0.6),
    rgba(0, 180, 216, 0.6),
    rgba(201, 168, 76, 0.6)
  );
  opacity: 0.4;
}

.pipeline-stage {
  position: relative;
  text-align: center;
  padding: 0 var(--space-2);
}

.pipeline-node {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-5);
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(201, 168, 76, 0.45);
  color: var(--color-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xl);
  position: relative;
  z-index: 1;
  backdrop-filter: blur(6px);
  transition:
    background 0.45s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.45s cubic-bezier(0.16, 1, 0.3, 1),
    box-shadow 0.45s cubic-bezier(0.16, 1, 0.3, 1);
}

.pipeline-stage:hover .pipeline-node {
  background: var(--color-gold);
  color: var(--color-primary-dark);
  transform: translateY(-4px) scale(1.06);
  box-shadow: 0 12px 32px rgba(201, 168, 76, 0.35);
}

.pipeline-step {
  display: block;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-secondary-light);
  margin-bottom: var(--space-2);
}

.pipeline-stage h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-3);
}

.pipeline-stage p {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.68);
  line-height: var(--line-height-relaxed);
}

/* ===== CURRENT PROJECTS ===== */
.research-projects {
  padding: var(--section-padding) 0;
}

/* Featured project video spotlight */
.projects-spotlight {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  gap: var(--space-12);
  align-items: center;
  margin-bottom: var(--space-16);
  padding: var(--space-10);
  border-radius: var(--radius-2xl);
  background:
    radial-gradient(circle at 0% 0%, rgba(0, 180, 216, 0.1) 0%, transparent 45%),
    radial-gradient(circle at 100% 100%, rgba(201, 168, 76, 0.1) 0%, transparent 45%),
    var(--color-primary-dark);
  color: var(--text-inverse);
  overflow: hidden;
}

.projects-spotlight-text h3 {
  font-size: clamp(1.5rem, 2.6vw, 2rem);
  margin: var(--space-2) 0 var(--space-4);
  line-height: var(--line-height-tight);
  text-wrap: balance;
}

.projects-spotlight-text p {
  color: rgba(255, 255, 255, 0.75);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-6);
}

.projects-spotlight-points {
  list-style: none;
  display: grid;
  gap: var(--space-3);
  margin: 0;
  padding: 0;
}

.projects-spotlight-points li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.85);
  line-height: var(--line-height-relaxed);
}

.projects-spotlight-points i {
  color: var(--color-gold);
  margin-top: 3px;
  flex-shrink: 0;
}

/* Projects grid */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-8);
}

.project-card {
  display: flex;
  flex-direction: column;
  padding: var(--space-8);
  border-radius: var(--card-radius);
  background: var(--bg-primary);
  border: 1px solid rgba(0, 0, 0, 0.07);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  transition:
    box-shadow 0.45s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.45s cubic-bezier(0.16, 1, 0.3, 1),
    border-color 0.45s cubic-bezier(0.16, 1, 0.3, 1);
}

.project-card:hover {
  box-shadow: 0 16px 48px rgba(8, 26, 43, 0.16);
  transform: translateY(-6px);
  border-color: rgba(0, 180, 216, 0.3);
}

.project-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.project-card h3 {
  font-size: var(--font-size-xl);
  color: var(--color-primary);
  text-wrap: balance;
}

.status-badge {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
  flex-shrink: 0;
}

.status-badge.active {
  background: rgba(0, 180, 216, 0.15);
  color: var(--color-secondary-dark);
  border: 1px solid rgba(0, 180, 216, 0.3);
}

.status-badge.review {
  background: rgba(201, 168, 76, 0.15);
  color: var(--color-gold-dark);
  border: 1px solid rgba(201, 168, 76, 0.35);
}

.status-badge.prototype {
  background: rgba(11, 60, 93, 0.1);
  color: var(--color-primary);
  border: 1px solid rgba(11, 60, 93, 0.2);
}

.project-card p {
  color: var(--text-secondary);
  line-height: var(--line-height-relaxed);
  font-size: var(--font-size-sm);
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.project-tech span {
  display: inline-block;
  padding: 2px var(--space-3);
  border-radius: var(--radius-full);
  background: var(--bg-secondary);
  border: 1px solid var(--color-gray-200);
  color: var(--text-secondary);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
}

.project-meta {
  margin-top: auto;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-gray-200);
  font-size: var(--font-size-xs);
  color: var(--text-muted);
}

.project-card .project-meta {
  margin-top: var(--space-5);
}

/* ===== PUBLICATIONS ===== */
.research-publications {
  padding: var(--section-padding) 0;
  background: var(--bg-secondary);
}

.publications-list {
  max-width: 940px;
  margin: 0 auto;
  display: grid;
  gap: var(--space-5);
}

.publication-item {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: var(--space-6);
  align-items: start;
  padding: var(--space-8);
  border-radius: var(--card-radius);
  background: var(--bg-primary);
  border: 1px solid rgba(0, 0, 0, 0.06);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  transition:
    box-shadow 0.45s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.45s cubic-bezier(0.16, 1, 0.3, 1);
}

.publication-item:hover {
  box-shadow: 0 12px 36px rgba(8, 26, 43, 0.14);
  transform: translateY(-3px);
}

.pub-type {
  display: inline-block;
  justify-self: start;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  background: rgba(11, 60, 93, 0.07);
  border: 1px solid rgba(11, 60, 93, 0.16);
  color: var(--color-primary);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  white-space: nowrap;
}

.publication-item .pub-authors {
  font-size: var(--font-size-sm);
  color: var(--color-primary);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--space-2);
}

.publication-item .pub-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  margin-bottom: var(--space-2);
  line-height: var(--line-height-relaxed);
  text-wrap: balance;
}

.publication-item .pub-venue {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  font-style: italic;
}

.publication-item .pub-year {
  display: inline-block;
  margin-top: var(--space-2);
  font-size: var(--font-size-xs);
  color: var(--color-gold-dark);
  font-weight: var(--font-weight-semibold);
}

/* ===== COLLABORATIONS ===== */
.research-collabs {
  padding: var(--section-padding) 0;
}

.collabs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-8);
}

.collab-card {
  padding: var(--space-8);
  border-radius: var(--card-radius);
  background: var(--bg-primary);
  border: 1px solid rgba(0, 0, 0, 0.07);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  display: flex;
  flex-direction: column;
  transition:
    box-shadow 0.45s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.45s cubic-bezier(0.16, 1, 0.3, 1);
}

.collab-card:hover {
  box-shadow: 0 16px 48px rgba(8, 26, 43, 0.16);
  transform: translateY(-6px);
}

.collab-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  background: rgba(11, 60, 93, 0.07);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-5);
}

.collab-card h3 {
  font-size: var(--font-size-lg);
  color: var(--color-primary);
  margin-bottom: var(--space-3);
  text-wrap: balance;
}

.collab-card p {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-5);
}

.collab-tag {
  display: inline-block;
  margin-top: auto;
  align-self: flex-start;
  padding: 2px var(--space-3);
  border-radius: var(--radius-full);
  background: rgba(201, 168, 76, 0.12);
  border: 1px solid rgba(201, 168, 76, 0.3);
  color: var(--color-gold-dark);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* "Your Institution" — open partner slot */
.collab-card-open {
  background:
    radial-gradient(circle at 100% 0%, rgba(201, 168, 76, 0.12) 0%, transparent 50%),
    var(--color-primary-dark);
  border: 1px dashed rgba(201, 168, 76, 0.4);
  color: var(--text-inverse);
}

.collab-card-open h3 {
  color: var(--text-inverse);
}

.collab-card-open p {
  color: rgba(255, 255, 255, 0.72);
}

.collab-card-open .collab-icon {
  background: rgba(201, 168, 76, 0.15);
  color: var(--color-gold);
}

.collab-cta {
  margin-top: auto;
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-gold);
  text-decoration: none;
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-sm);
  transition: gap 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.collab-cta:hover {
  gap: var(--space-3);
}

/* ===== RESEARCH NEWS ===== */
.research-news {
  padding: var(--section-padding) 0;
  background: var(--bg-secondary);
}

.research-news-list {
  max-width: 840px;
  margin: 0 auto;
  position: relative;
}

/* timeline spine */
.research-news-list::before {
  content: "";
  position: absolute;
  top: var(--space-4);
  bottom: var(--space-4);
  left: 44px;
  width: 2px;
  background: linear-gradient(180deg, var(--color-gold), var(--color-secondary));
  opacity: 0.3;
}

.research-news-item {
  position: relative;
  display: grid;
  grid-template-columns: 90px minmax(0, 1fr);
  gap: var(--space-8);
  padding: var(--space-6) 0;
}

.news-date {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  text-align: right;
  padding-right: var(--space-8);
  position: relative;
  font-variant-numeric: tabular-nums;
}

/* timeline dot */
.news-date::after {
  content: "";
  position: absolute;
  top: 6px;
  right: -5px;
  width: 12px;
  height: 12px;
  border-radius: var(--radius-full);
  background: var(--color-gold);
  border: 2px solid var(--bg-secondary);
  box-shadow: 0 0 0 3px rgba(201, 168, 76, 0.25);
}

.news-body h3 {
  font-size: var(--font-size-lg);
  color: var(--color-primary);
  margin-bottom: var(--space-2);
  text-wrap: balance;
}

.news-body p {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  line-height: var(--line-height-relaxed);
}

/* ===== RESEARCH TEAM STRIP ===== */
.research-team-strip {
  padding: var(--section-padding) 0;
  background: var(--color-primary-dark);
  color: var(--text-inverse);
}

.research-team-strip .section-title {
  color: var(--text-inverse);
}

.research-team-strip .section-title::after {
  background: var(--color-gold);
}

.team-strip-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-8);
}

.team-strip-member {
  text-align: center;
  padding: var(--space-6);
  border-radius: var(--card-radius);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(12px);
  transition:
    background 0.4s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.4s cubic-bezier(0.16, 1, 0.3, 1),
    border-color 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.team-strip-member:hover {
  background: rgba(255, 255, 255, 0.09);
  transform: translateY(-4px);
  border-color: rgba(201, 168, 76, 0.35);
}

.team-strip-avatar {
  width: 72px;
  height: 72px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--color-secondary), var(--color-primary-light));
  margin: 0 auto var(--space-4);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--text-inverse);
  border: 2px solid var(--color-gold);
  overflow: hidden;
  flex-shrink: 0;
}

.team-strip-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
}

.team-strip-avatar-icon {
  font-size: var(--font-size-xl);
}

.team-strip-member h4 {
  font-size: var(--font-size-base);
  margin-bottom: var(--space-1);
}

.team-strip-member p {
  font-size: var(--font-size-xs);
  opacity: 0.75;
}

/* ===== FAQ ===== */
.research-faq {
  padding: var(--section-padding) 0;
}

.faq-list {
  max-width: 780px;
  margin: 0 auto;
  display: grid;
  gap: var(--space-4);
}

.faq-item {
  border-radius: var(--radius-lg);
  background: var(--bg-primary);
  border: 1px solid var(--color-gray-200);
  overflow: hidden;
  transition: border-color 0.35s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.faq-item:hover {
  border-color: rgba(11, 60, 93, 0.28);
}

.faq-item[open] {
  border-color: rgba(201, 168, 76, 0.45);
  box-shadow: 0 8px 28px rgba(8, 26, 43, 0.1);
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-6);
  cursor: pointer;
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  list-style: none;
  user-select: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary i {
  color: var(--color-gold-dark);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  flex-shrink: 0;
}

.faq-item[open] summary i {
  transform: rotate(45deg);
}

.faq-item p {
  padding: 0 var(--space-6) var(--space-5);
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-relaxed);
}

/* ===== COLLABORATE CTA ===== */
.research-collaborate {
  padding: var(--section-padding) 0;
  text-align: center;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--text-inverse);
}

.research-collaborate h2 {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--space-5);
}

.research-collaborate p {
  max-width: 640px;
  margin: 0 auto var(--space-8);
  font-size: var(--font-size-lg);
  opacity: 0.9;
  line-height: var(--line-height-relaxed);
}

.research-collaborate-actions {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}

.btn-outline-light {
  display: inline-block;
  padding: var(--space-3) var(--space-8);
  border-radius: var(--radius-full);
  border: 2px solid rgba(255, 255, 255, 0.5);
  color: var(--text-inverse);
  text-decoration: none;
  font-weight: var(--font-weight-semibold);
  transition:
    background 0.4s cubic-bezier(0.16, 1, 0.3, 1),
    border-color 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--color-gold);
}

/* Research page-only hero height tuning
   ─────────────────────────────────────
   Change height here. Current: full viewport below the header.
   Icons sit on the bottom edge (half visible) via .hero-float-icons in home.css.
   To shorten: e.g. calc(100svh - var(--header-height) - 80px)
   To use a fixed height: e.g. 720px
*/
.research-hero-video.hero-section {
  height: calc(100svh - var(--header-height));
  min-height: calc(100svh - var(--header-height));
  max-height: calc(100svh - var(--header-height));
}

.research-hero-video .hero-slider,
.research-hero-video .hero-video-layer {
  height: 100%;
}

.research-hero-video .hero-float-icons {
  bottom: -28px;
}

.research-hero-video + .research-glance {
  padding-top: calc(var(--space-16) + 28px);
}

.research-hero-video .hero-content {
  max-width: 760px;
  text-shadow: 0 8px 30px rgba(8, 26, 43, 0.5);
}

.research-hero-video .hero-content h1 {
  font-size: clamp(2rem, 4.2vw, 3.35rem);
}

.research-hero-video .hero-content p {
  font-size: clamp(1rem, 1.4vw, 1.2rem);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .research-focus-grid {
    grid-template-columns: 1fr;
  }

  .research-glance-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-10) var(--space-8);
  }

  .research-glance-stat:nth-child(3) {
    border-left: none;
  }

  .pipeline-track {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-10) var(--space-8);
  }

  .pipeline-track::before {
    display: none;
  }

  .projects-spotlight {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .research-hero-video.hero-section {
    height: calc(100svh - var(--header-height));
    min-height: calc(100svh - var(--header-height));
    max-height: calc(100svh - var(--header-height));
  }
}

@media (max-width: 768px) {
  .research-glance-grid {
    grid-template-columns: 1fr 1fr;
  }

  .projects-spotlight {
    padding: var(--space-6);
  }

  .publication-item {
    grid-template-columns: 1fr;
    gap: var(--space-4);
    padding: var(--space-6);
  }

  .research-news-list::before {
    left: 8px;
  }

  .research-news-item {
    grid-template-columns: 1fr;
    gap: var(--space-2);
    padding-left: var(--space-8);
  }

  .news-date {
    text-align: left;
    padding-right: 0;
  }

  .news-date::after {
    right: auto;
    left: calc(-1 * var(--space-8) + 3px);
  }

  .research-hero-video.hero-section {
    height: calc(100svh - var(--header-height));
    min-height: calc(100svh - var(--header-height));
    max-height: calc(100svh - var(--header-height));
  }

  .research-hero-video .hero-bg-video {
    transform: none;
  }
}

@media (max-width: 560px) {
  .pipeline-track {
    grid-template-columns: 1fr;
  }

  .research-glance-stat {
    border-left: none;
    padding: var(--space-3) 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .research-focus-card,
  .project-card,
  .collab-card,
  .publication-item,
  .team-strip-member,
  .pipeline-node {
    transition: none;
  }
}

/* FABLE 5: I FINISHED THIS FILE */