/* ===================================
   Education Pages Styling
   css/education-pages.css
   =================================== */

/* Page Header */
.page-header {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  padding: 80px 24px 60px;
  text-align: center;
  color: white;
}

[data-theme="dark"] .page-header {
  background: linear-gradient(135deg, #4338ca 0%, #6366f1 100%);
}

.header-container {
  max-width: 900px;
  margin: 0 auto;
}

.page-title {
  font-size: 48px;
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.2;
}

.page-subtitle {
  font-size: 20px;
  opacity: 0.95;
  line-height: 1.6;
}

/* Content Sections */
.content-section {
  padding: 60px 24px;
}

.content-title {
  font-size: 36px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 32px;
  color: var(--text-primary);
}

.section-intro {
  text-align: center;
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 800px;
  margin: 0 auto 48px;
  line-height: 1.7;
}

/* Definition Box */
.definition-box {
  background: var(--bg-white);
  padding: 40px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  max-width: 900px;
  margin: 0 auto;
}

.definition-text {
  font-size: 18px;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.definition-text:last-child {
  margin-bottom: 0;
}

/* Developer Section (Home Page) */
.developer-section {
  padding: 60px 24px;
  background: var(--bg-light);
}

.developer-card {
  background: var(--bg-white);
  padding: 48px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  max-width: 800px;
  margin: 0 auto;
}

.developer-info {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.info-row {
  display: flex;
  align-items: baseline;
  gap: 16px;
  font-size: 18px;
}

.info-label {
  font-weight: 600;
  color: var(--text-primary);
  min-width: 150px;
}

.info-value {
  color: var(--text-secondary);
}

/* Motivation Section (Home Page) */
.motivation-section {
  padding: 80px 24px;
}

.motivation-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  margin-top: 48px;
}

.motivation-card {
  background: var(--bg-white);
  padding: 40px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.motivation-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.motivation-icon {
  font-size: 48px;
  margin-bottom: 20px;
}

.motivation-card h3 {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.motivation-card p {
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-secondary);
}

/* Learn More Button */
.learn-more {
  text-align: center;
  margin-top: 48px;
}

.learn-more-button {
  display: inline-block;
  padding: 16px 32px;
  background: var(--primary-blue);
  color: white;
  border-radius: var(--radius-md);
  text-decoration: none;
  font-size: 16px;
  font-weight: 600;
  transition: var(--transition);
}

.learn-more-button:hover {
  background: var(--dark-blue);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* Collaboration Section (Home Page) */
.collaboration-section {
  padding: 80px 24px;
  background: var(--bg-light);
}

.collaboration-box {
  background: var(--bg-white);
  padding: 48px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  max-width: 900px;
  margin: 0 auto;
}

.collaboration-logos {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 32px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.logo-placeholder {
  font-size: 64px;
  margin-bottom: 12px;
}

.logo-item p {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}

.collaboration-symbol {
  font-size: 32px;
  font-weight: 300;
  color: var(--text-secondary);
}

.collaboration-description {
  font-size: 18px;
  line-height: 1.8;
  color: var(--text-secondary);
  text-align: center;
}

.logo-img {
  background: #fff;
  padding: 6px;
  border-radius: 8px;
  max-height: 100px;
}

.logo-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* Anatomy Section */
.anatomy-section {
  padding: 60px 24px;
  background: var(--bg-light);
}

.anatomy-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  margin-top: 32px;
}

.anatomy-description p {
  font-size: 17px;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.anatomy-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.anatomy-list li {
  padding: 12px 0;
  font-size: 16px;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-light);
}

.anatomy-list li:last-child {
  border-bottom: none;
}

.anatomy-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
}

.placeholder-box {
  background: var(--bg-white);
  border: 2px dashed var(--border-light);
  border-radius: var(--radius-md);
  padding: 40px;
  text-align: center;
  width: 100%;
}

.placeholder-text {
  font-size: 24px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.placeholder-note {
  font-size: 14px;
  color: var(--text-secondary);
  margin: 0;
}

.anatomy-img {
  border-radius: 8px;
  max-width: 40vh;
}
/* Subtypes Section */
.subtypes-section {
  padding: 80px 24px;
}

.subtype-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  max-width: 1000px;
  margin: 0 auto;
}

.subtype-card {
  background: var(--bg-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: var(--transition);
}

.subtype-card:hover {
  box-shadow: var(--shadow-md);
}

.subtype-header {
  padding: 24px 32px;
  background: var(--bg-light);
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 2px solid var(--border-light);
}

.subtype-title {
  font-size: 24px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.subtype-badge {
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
}

.subtype-badge.edh {
  background: #fee2e2;
  color: #991b1b;
}

.subtype-badge.sdh {
  background: #dbeafe;
  color: #1e40af;
}

.subtype-badge.sah {
  background: #fef2f2;
  color: #7f1d1d;
}

.subtype-badge.ivh {
  background: #fef3c7;
  color: #92400e;
}

.subtype-badge.iph {
  background: #dcfce7;
  color: #14532d;
}

[data-theme="dark"] .subtype-badge.edh {
  background: #7f1d1d;
  color: #fecaca;
}

[data-theme="dark"] .subtype-badge.sdh {
  background: #1e3a8a;
  color: #bfdbfe;
}

[data-theme="dark"] .subtype-badge.sah {
  background: #450a0a;
  color: #fca5a5;
}

[data-theme="dark"] .subtype-badge.ivh {
  background: #78350f;
  color: #fef3c7;
}

[data-theme="dark"] .subtype-badge.iph {
  background: #14532d;
  color: #bbf7d0;
}

.subtype-content {
  padding: 32px;
}

.subtype-definition {
  font-size: 18px;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 24px;
  font-weight: 500;
}

.subtype-details h4 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 24px;
  margin-bottom: 12px;
}

.subtype-details ul {
  margin: 12px 0 20px 20px;
  padding: 0;
}

.subtype-details li {
  margin-bottom: 8px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.subtype-details p {
  line-height: 1.7;
  color: var(--text-secondary);
}

/* Importance Section */
.importance-section {
  padding: 60px 24px;
  background: var(--bg-light);
}

.importance-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
  margin-top: 48px;
}

.importance-card {
  background: var(--bg-white);
  padding: 32px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  text-align: center;
}

.importance-icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.importance-card h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.importance-card p {
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-secondary);
}

/* Dataset Card */
.dataset-card {
  background: var(--bg-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  max-width: 900px;
  margin: 0 auto;
}

.dataset-info {
  padding: 32px;
  background: var(--bg-light);
}

.info-row-large {
  display: flex;
  padding: 16px 0;
  border-bottom: 1px solid var(--border-light);
}

.info-row-large:last-child {
  border-bottom: none;
}

.info-label-large {
  font-weight: 600;
  color: var(--text-primary);
  min-width: 200px;
  font-size: 16px;
}

.info-value-large {
  color: var(--text-secondary);
  font-size: 16px;
}

.dataset-description {
  padding: 32px;
}

.dataset-description p {
  font-size: 17px;
  line-height: 1.8;
  color: var(--text-secondary);
  margin: 0;
}

/* Pipeline Steps */
.preprocessing-section {
  padding: 80px 24px;
  background: var(--bg-light);
}

.pipeline-steps {
  max-width: 900px;
  margin: 0 auto;
}

.pipeline-step {
  display: flex;
  gap: 24px;
  margin-bottom: 40px;
}

.step-number {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: var(--primary-blue);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 700;
}

.step-content {
  flex: 1;
  background: var(--bg-white);
  padding: 24px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.step-content h3 {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.step-content p {
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.code-box {
  background: var(--bg-light);
  padding: 16px;
  border-radius: var(--radius-sm);
  margin: 16px 0;
  font-family: "Monaco", "Menlo", monospace;
}

.code-box code {
  color: var(--primary-blue);
  font-size: 14px;
}

/* Windowing Grid */
.windowing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin: 20px 0;
}

.window-card {
  padding: 20px;
  border-radius: var(--radius-sm);
  text-align: center;
}

.window-card.brain-window {
  background: #dbeafe;
  border: 2px solid #3b82f6;
}

.window-card.blood-window {
  background: #fee2e2;
  border: 2px solid #ef4444;
}

.window-card.bone-window {
  background: #f3f4f6;
  border: 2px solid #6b7280;
}

[data-theme="dark"] .window-card.brain-window {
  background: #1e3a8a;
  color: #bfdbfe;
}

[data-theme="dark"] .window-card.blood-window {
  background: #7f1d1d;
  color: #fecaca;
}

[data-theme="dark"] .window-card.bone-window {
  background: #374151;
  color: #d1d5db;
}

.window-card h4 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.window-params {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 8px;
}

.window-card p {
  font-size: 14px;
  line-height: 1.5;
  margin: 0;
}

.tech-list {
  margin: 16px 0;
  padding-left: 20px;
}

.tech-list li {
  margin-bottom: 8px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.preprocessing-note {
  background: var(--bg-white);
  padding: 32px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  margin-top: 48px;
  border-left: 4px solid var(--primary-blue);
}

.preprocessing-note h4 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.preprocessing-note p {
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-secondary);
  margin: 0;
}

/* Model Architecture */
.architecture-section {
  padding: 80px 24px;
}

.model-name-card {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  padding: 48px;
  border-radius: var(--radius-md);
  text-align: center;
  color: white;
  margin-bottom: 48px;
}

.model-name-title {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 12px;
}

.model-subtitle {
  font-size: 18px;
  opacity: 0.95;
}

.architecture-intro {
  font-size: 18px;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 32px;
  text-align: center;
}

.architecture-components {
  max-width: 1000px;
  margin: 0 auto;
}

.component-card {
  background: var(--bg-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: 32px;
  margin-bottom: 24px;
}

.component-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--border-light);
}

.component-header h4 {
  font-size: 24px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.component-badge {
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  background: #dbeafe;
  color: #1e40af;
}

.component-content p {
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.component-content h5 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 20px;
  margin-bottom: 12px;
}

.component-content ul {
  margin: 12px 0 20px 20px;
}

.component-content li {
  margin-bottom: 8px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.cascade-connector {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 32px 0;
}

.connector-line {
  flex: 1;
  height: 2px;
  background: var(--primary-blue);
}

.connector-label {
  padding: 8px 20px;
  background: var(--primary-blue);
  color: white;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
}

.cascade-mechanism {
  background: var(--bg-light);
  padding: 40px;
  border-radius: var(--radius-md);
  margin: 48px 0;
}

.cascade-mechanism h3 {
  font-size: 28px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.mechanism-content p {
  font-size: 17px;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.mechanism-steps {
  margin: 20px 0;
  padding-left: 20px;
}

.mechanism-steps li {
  margin-bottom: 16px;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-secondary);
}

/* Architecture Diagram Placeholder */
.architecture-diagram-placeholder {
  margin: 48px 0;
}

.placeholder-flow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-top: 20px;
  flex-wrap: wrap;
}

.flow-item {
  padding: 12px 20px;
  background: var(--bg-white);
  border: 2px solid var(--primary-blue);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.flow-arrow {
  font-size: 24px;
  color: var(--primary-blue);
  font-weight: 700;
}

/* Architecture Advantages */
.architecture-advantages {
  margin-top: 48px;
}

.architecture-advantages h3 {
  font-size: 28px;
  font-weight: 600;
  text-align: center;
  margin-bottom: 32px;
  color: var(--text-primary);
}

.advantage-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.advantage-card {
  background: var(--bg-white);
  padding: 32px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  text-align: center;
}

.advantage-icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.advantage-card h4 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.advantage-card p {
  font-size: 15px;
  line-height: 1.6;
  color: var(--text-secondary);
}

/* Multi-Model Section */
.multimodel-section {
  padding: 60px 24px;
  background: var(--bg-light);
}

.multimodel-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
  margin: 32px 0;
}

.multimodel-card {
  background: var(--bg-white);
  padding: 24px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  text-align: center;
}

.multimodel-card h4 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.multimodel-card p {
  font-size: 14px;
  color: var(--text-secondary);
  margin: 0;
}

.multimodel-benefits {
  background: var(--bg-white);
  padding: 32px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  margin-top: 32px;
}

.multimodel-benefits h4 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.multimodel-benefits ul {
  margin: 0;
  padding-left: 20px;
}

.multimodel-benefits li {
  margin-bottom: 10px;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-secondary);
}

/* Specifications */
.specifications-section {
  padding: 60px 24px;
}

.specs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  max-width: 900px;
  margin: 0 auto;
}

.spec-card {
  background: var(--bg-white);
  padding: 24px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  text-align: center;
}

.spec-card h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.spec-card p {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}

/* Disclaimer Section */
.disclaimer-section {
  padding: 60px 24px;
  background: var(--bg-light);
}

.disclaimer-box {
  background: var(--bg-white);
  padding: 32px;
  border-radius: var(--radius-md);
  border-left: 4px solid #f59e0b;
  max-width: 800px;
  margin: 0 auto;
}

.disclaimer-box h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.disclaimer-box p {
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-secondary);
  margin: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
  .page-title {
    font-size: 32px;
  }

  .page-subtitle {
    font-size: 16px;
  }

  .content-title {
    font-size: 28px;
  }

  .anatomy-content {
    grid-template-columns: 1fr;
  }

  .collaboration-logos {
    flex-direction: column;
  }

  .pipeline-step {
    flex-direction: column;
  }

  .component-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .cascade-connector {
    flex-direction: column;
  }

  .connector-line {
    width: 2px;
    height: 32px;
  }

  .placeholder-flow {
    flex-direction: column;
  }

  .flow-arrow {
    transform: rotate(90deg);
  }
}