/* research.css */
.research-hero {
  min-height: 60vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background: var(--color-void);
  padding-top: 200px;
  padding-bottom: 100px;
}

@media (max-width: 768px) {
  .research-hero {
    padding-top: 160px;
    padding-bottom: 80px;
    text-align: center;
  }
  .research-subline {
    margin-left: auto;
    margin-right: auto;
  }
}

.hero-headline {
  font-size: var(--text-hero) !important;
  line-height: 0.95;
  margin-bottom: 40px;
  font-family: var(--font-display) !important;
}

.research-subline {
  font-size: var(--text-xl);
  color: var(--color-fog);
  max-width: 700px;
  line-height: 1.6;
}

/* Featured Paper */
.featured-paper {
  padding: var(--space-section) 0;
}

.paper-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 120px;
  align-items: center;
}

@media (max-width: 1200px) {
  .paper-grid {
    gap: 60px;
  }
}

@media (max-width: 1024px) {
  .paper-grid {
    grid-template-columns: 1fr;
    gap: 60px;
    text-align: center;
  }
  .paper-visual {
    order: -1;
    height: 300px;
  }
  .paper-meta {
    justify-content: center;
  }
}

@media (max-width: 768px) {
  .paper-visual {
    height: 250px;
  }
}

.paper-headline {
  font-size: var(--text-3xl);
  margin-bottom: 32px;
}

.paper-abstract {
  font-size: var(--text-lg);
  color: var(--color-fog);
  line-height: 1.7;
  margin-bottom: 48px;
}

.paper-meta {
  display: flex;
  gap: 32px;
  font-size: 10px;
  color: var(--color-ghost);
  margin-bottom: 56px;
}

.paper-visual {
  height: 400px;
}

/* Repository */
.repository {
  padding-bottom: var(--space-section);
}

.repo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 80px;
}

@media (max-width: 1024px) {
  .repo-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

.repo-card {
  padding: 48px;
  display: flex;
  flex-direction: column;
}

.repo-cat {
  font-size: 10px;
  margin-bottom: 24px;
  display: block;
}

.repo-card h3 {
  font-size: var(--text-xl);
  margin-bottom: 20px;
  color: var(--color-chalk);
}

.repo-card p {
  font-size: 14px;
  color: var(--color-fog);
  line-height: 1.6;
  margin-bottom: 40px;
  flex-grow: 1;
}

.repo-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
  font-size: 10px;
  color: var(--color-ghost);
}

.read-link {
  color: var(--color-aqua);
  text-decoration: none;
}