/* ─── Yayınlar Sayfası Stilleri ─── */

/* Publications Hero */
.publications-hero {
  background: linear-gradient(135deg, var(--clr-primary) 0%, #1976d2 100%);
  color: #fff;
  padding: 5rem 0 3rem;
  text-align: center;
}

.publications-hero-content h1 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
  margin-bottom: 1rem;
}

.hero-subtitle {
  font-size: 1.3rem;
  opacity: 0.9;
  margin-bottom: 3rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.academic-stats {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.stat-item {
  text-align: center;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(10px);
  padding: 1.5rem 2rem;
  border-radius: 15px;
  border: 1px solid rgba(255,255,255,0.2);
  min-width: 140px;
}

.stat-number {
  display: block;
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--clr-secondary);
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.9rem;
  opacity: 0.9;
  font-weight: 600;
}

/* Publication Categories */
.publication-categories {
  padding: 5rem 0;
}

.categories-intro {
  text-align: center;
  margin-bottom: 4rem;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.categories-intro h2 {
  font-size: 2.5rem;
  color: var(--clr-primary);
  margin-bottom: 1.5rem;
  font-weight: 700;
}

.categories-intro p {
  font-size: 1.1rem;
  line-height: 1.7;
  color: #666;
}

/* UPDATED: grid to 2x3 on desktop */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

/* Responsive grid adjustments for 2x3 layout */
@media (min-width: 1024px) {
  .categories-grid {
    grid-template-columns: repeat(3, 1fr);
    max-width: 1200px;
    margin: 0 auto;
  }
}

@media (min-width: 640px) and (max-width: 1023px) {
  .categories-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 639px) {
  .categories-grid {
    grid-template-columns: 1fr;
  }
}

.category-card {
  background: #fff;
  padding: 2.5rem;
  border-radius: 20px;
  box-shadow: 0 15px 35px rgba(0,0,0,0.08);
  text-align: center;
  border-top: 5px solid var(--clr-primary);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.category-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 25px 50px rgba(0,0,0,0.15);
}

.category-card:nth-child(2) {
  border-top-color: var(--clr-secondary);
}

.category-card:nth-child(3) {
  border-top-color: #4caf50;
}

.category-card:nth-child(4) {
  border-top-color: #9c27b0;
}

.category-icon {
  font-size: 3rem;
  margin-bottom: 1.5rem;
  display: block;
}

.category-card h3 {
  font-size: 1.4rem;
  color: var(--clr-primary);
  margin-bottom: 1rem;
  font-weight: 600;
}

.category-card p {
  line-height: 1.6;
  color: #666;
  margin-bottom: 2rem;
}

.publication-count {
  background: rgba(1,87,155,0.1);
  color: var(--clr-primary);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-weight: 600;
  font-size: 0.9rem;
  display: inline-block;
}

/* Featured Publications */
.featured-publications {
  background: rgba(1,87,155,0.02);
  padding: 5rem 0;
}

.featured-publications h2 {
  text-align: center;
  font-size: 2.5rem;
  color: var(--clr-primary);
  margin-bottom: 3rem;
  font-weight: 700;
}

.publications-list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.publication-item {
  background: #fff;
  border-radius: 15px;
  padding: 2.5rem;
  box-shadow: 0 10px 25px rgba(0,0,0,0.08);
  border-left: 5px solid var(--clr-primary);
  transition: transform 0.3s ease;
  position: relative;
}

/* Publications CTA Button */
.publications-cta {
  text-align: center;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(1,87,155,0.1);
}

.publications-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--clr-primary);
  color: #fff;
  padding: 1rem 2rem;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(1,87,155,0.3);
}

.publications-btn:hover {
  background: #1565c0;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(1,87,155,0.4);
}

.btn-icon {
  font-size: 1.2rem;
}

.btn-text {
  white-space: nowrap;
}

.publication-item:hover {
  transform: translateY(-3px);
}

.publication-item.featured {
  border-left-color: var(--clr-secondary);
  background: linear-gradient(145deg, #fff 0%, rgba(66,165,245,0.02) 100%);
}

.publication-badge {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  padding: 0.4rem 1rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.publication-badge.isi {
  background: rgba(66,165,245,0.1);
  color: var(--clr-secondary);
}

.publication-badge.national {
  background: rgba(76,175,80,0.1);
  color: #4caf50;
}

.publication-content h3 {
  font-size: 1.3rem;
  color: var(--clr-primary);
  margin-bottom: 1.5rem;
  font-weight: 600;
  line-height: 1.4;
  padding-right: 6rem;
}

.publication-details {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
}

.authors {
  color: #333;
  line-height: 1.5;
}

.authors strong {
  color: var(--clr-secondary);
  font-weight: 700;
}

.journal {
  color: var(--clr-primary);
  font-weight: 600;
  font-style: italic;
}

.year, .volume {
  color: #666;
}

.publication-abstract {
  background: rgba(1,87,155,0.03);
  padding: 1.5rem;
  border-radius: 12px;
  margin-bottom: 1.5rem;
  border-left: 4px solid var(--clr-primary);
}

.publication-abstract p {
  color: #666;
  line-height: 1.6;
  margin: 0;
  font-style: italic;
}

.publication-metrics {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  font-size: 0.85rem;
}

.doi, .citations, .impact {
  background: #f8f9fa;
  padding: 0.4rem 0.8rem;
  border-radius: 8px;
  color: #666;
  font-weight: 500;
}

.doi {
  color: var(--clr-primary);
  font-family: 'Courier New', monospace;
}

.citations {
  color: var(--clr-secondary);
  font-weight: 600;
}

/* Conference Presentations */
.conference-presentations {
  padding: 5rem 0;
}

.conference-presentations h2 {
  text-align: center;
  font-size: 2.5rem;
  color: var(--clr-primary);
  margin-bottom: 3rem;
  font-weight: 700;
}

.conferences-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 3rem;
}

.conference-category {
  background: #fff;
  padding: 2.5rem;
  border-radius: 20px;
  box-shadow: 0 15px 35px rgba(0,0,0,0.08);
  border-top: 5px solid var(--clr-primary);
}

.conference-category:nth-child(2) {
  border-top-color: #4caf50;
}

.conference-category:nth-child(3) {
  border-top-color: #9c27b0;
}

.conference-category h3 {
  font-size: 1.5rem;
  color: var(--clr-primary);
  margin-bottom: 2rem;
  font-weight: 600;
}

.conference-list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.conference-item {
  padding: 2rem;
  background: rgba(1,87,155,0.03);
  border-radius: 12px;
  border-left: 4px solid var(--clr-primary);
  position: relative;
}

.conference-item.award {
  border-left-color: var(--clr-secondary);
  background: rgba(66,165,245,0.05);
}

.award-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: var(--clr-secondary);
  color: #fff;
  padding: 0.4rem 0.8rem;
  border-radius: 15px;
  font-size: 0.75rem;
  font-weight: 600;
}

.conference-item h4 {
  color: var(--clr-primary);
  margin-bottom: 0.8rem;
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.4;
  padding-right: 5rem;
}

.conference-item p {
  color: #666;
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.conference-date {
  color: var(--clr-secondary);
  font-size: 0.9rem;
  font-weight: 600;
}

/* Academic Contributions */
.academic-contributions {
  background: rgba(1,87,155,0.02);
  padding: 5rem 0;
}

.academic-contributions h2 {
  text-align: center;
  font-size: 2.5rem;
  color: var(--clr-primary);
  margin-bottom: 3rem;
  font-weight: 700;
}

.contributions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
}

.contribution-card {
  background: #fff;
  padding: 2.5rem;
  border-radius: 20px;
  box-shadow: 0 15px 35px rgba(0,0,0,0.08);
  border-top: 5px solid var(--clr-primary);
}

.contribution-card:nth-child(2) {
  border-top-color: var(--clr-secondary);
}

.contribution-card:nth-child(3) {
  border-top-color: #4caf50;
}

.contribution-icon {
  font-size: 3rem;
  text-align: center;
  margin-bottom: 1.5rem;
  display: block;
}

.contribution-card h3 {
  font-size: 1.4rem;
  color: var(--clr-primary);
  margin-bottom: 2rem;
  font-weight: 600;
  text-align: center;
}

.thesis-list, .speaking-list, .session-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.thesis-item, .speaking-item, .session-item {
  padding: 1.5rem;
  background: rgba(1,87,155,0.03);
  border-radius: 12px;
  border-left: 4px solid var(--clr-primary);
}

.thesis-item h4, .speaking-item h4, .session-item h4 {
  color: var(--clr-primary);
  margin-bottom: 0.8rem;
  font-size: 1rem;
  font-weight: 600;
}

.thesis-item p, .speaking-item p, .session-item p {
  color: #666;
  line-height: 1.5;
  margin-bottom: 0.5rem;
  font-style: italic;
}

.thesis-year, .speaking-date, .session-date {
  color: var(--clr-secondary);
  font-size: 0.9rem;
  font-weight: 600;
}

/* Research Interests */
.research-interests {
  padding: 5rem 0;
}

.research-interests h2 {
  text-align: center;
  font-size: 2.5rem;
  color: var(--clr-primary);
  margin-bottom: 3rem;
  font-weight: 700;
}

.research-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.research-card {
  background: #fff;
  padding: 2.5rem;
  border-radius: 20px;
  box-shadow: 0 15px 35px rgba(0,0,0,0.08);
  border-top: 5px solid var(--clr-primary);
}

.research-card:nth-child(2) {
  border-top-color: var(--clr-secondary);
}

.research-card:nth-child(3) {
  border-top-color: #4caf50;
}

.research-card h3 {
  font-size: 1.3rem;
  color: var(--clr-primary);
  margin-bottom: 1.5rem;
  font-weight: 600;
}

.research-card ul {
  list-style: none;
}

.research-card li {
  padding: 0.75rem 0;
  border-bottom: 1px solid rgba(0,0,0,0.05);
  position: relative;
  padding-left: 1.5rem;
  color: #666;
  line-height: 1.5;
}

.research-card li:before {
  content: "▸";
  position: absolute;
  left: 0;
  top: 0.75rem;
  color: var(--clr-primary);
  font-weight: 700;
}

.research-card li:last-child {
  border-bottom: none;
}

/* Services CTA */
.services-cta {
  background: linear-gradient(135deg, var(--clr-primary) 0%, #1976d2 100%);
  color: #fff;
  padding: 4rem 0;
  text-align: center;
}

.services-cta h2 {
  font-size: 2.2rem;
  margin-bottom: 1rem;
  font-weight: 700;
}

.services-cta p {
  font-size: 1.2rem;
  margin-bottom: 2.5rem;
  opacity: 0.9;
  margin-left: auto;
  margin-right: auto;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.cta-primary {
  background: var(--clr-secondary);
  color: #fff;
  padding: 1.2rem 2.5rem;
  border-radius: 50px;
  font-size: 1.1rem;
  font-weight: 600;
  text-decoration: none;
  box-shadow: 0 8px 25px rgba(66,165,245,0.3);
  transition: all 0.3s ease;
}

.cta-primary:hover {
  background: #1e88e5;
  transform: translateY(-3px);
  box-shadow: 0 12px 35px rgba(66,165,245,0.4);
}

.cta-secondary {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.3);
  padding: 1.2rem 2.5rem;
  border-radius: 50px;
  font-size: 1.1rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.cta-secondary:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.6);
  transform: translateY(-3px);
}

.phone-icon {
  font-size: 1rem;
}

/* Responsive Design */
@media (max-width: 768px) {
  .academic-stats {
    gap: 1rem;
  }
  
  .stat-item {
    padding: 1rem 1.5rem;
    min-width: 120px;
  }
  
  .stat-number {
    font-size: 1.8rem;
  }
  
  .categories-grid {
    grid-template-columns: 1fr;
  }
  
  .conferences-grid {
    grid-template-columns: 1fr;
  }
  
  .contributions-grid {
    grid-template-columns: 1fr;
  }
  
  .research-grid {
    grid-template-columns: 1fr;
  }
  
  .publication-content h3 {
    padding-right: 1rem;
  }
  
  .publication-badge {
    position: static;
    display: inline-block;
    margin-bottom: 1rem;
  }
  
  .publication-metrics {
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .award-badge {
    position: static;
    display: inline-block;
    margin-bottom: 1rem;
  }
  
  .conference-item h4 {
    padding-right: 1rem;
  }
  
  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }
}