/* ============================================
   ProCode EduPulse — AI Recommendations Styles
   ============================================ */

/* ── AI Recommendations Page Layout ── */
.ai-recommendations-page {
  padding: var(--space-6) 0;
  min-height: 100vh;
}

.page-header {
  text-align: center;
  margin-bottom: var(--space-8);
}

.page-title {
  font-size: var(--text-4xl);
  font-weight: var(--font-bold);
  color: var(--text-primary);
  margin-bottom: var(--space-4);
}

.page-description {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ── Recommendations Overview ── */
.recommendations-overview {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

.overview-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  display: flex;
  align-items: center;
  gap: var(--space-4);
  transition: all var(--transition-base);
}

.overview-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-primary);
}

.overview-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-md);
  background: var(--brand-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: var(--text-2xl);
  flex-shrink: 0;
}

.overview-content h3 {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.overview-content p {
  color: var(--text-secondary);
  font-size: var(--text-sm);
  margin: 0;
}

/* ── Recommendation Sections ── */
.recommendations-sections {
  margin-bottom: var(--space-8);
}

.recommendation-section {
  margin-bottom: var(--space-8);
}

.recommendation-section h3 {
  font-size: var(--text-2xl);
  font-weight: var(--font-semibold);
  color: var(--text-primary);
  margin-bottom: var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.recommendation-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--space-4);
}

/* ── Recommendation Cards ── */
.recommendation-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  position: relative;
  transition: all var(--transition-base);
  border-left: 4px solid var(--border-subtle);
}

.recommendation-card[data-priority="high"] {
  border-left-color: var(--color-error);
}

.recommendation-card[data-priority="medium"] {
  border-left-color: var(--color-warning);
}

.recommendation-card[data-priority="low"] {
  border-left-color: var(--color-info);
}

.recommendation-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-primary);
}

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

.recommendation-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--brand-primary);
  font-size: var(--text-lg);
}

.recommendation-priority {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  text-transform: uppercase;
}

.recommendation-title {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  color: var(--text-primary);
  margin-bottom: var(--space-2);
  line-height: var(--leading-tight);
}

.recommendation-description {
  color: var(--text-secondary);
  margin-bottom: var(--space-4);
  line-height: var(--leading-relaxed);
}

.recommendation-reason {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3);
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-4);
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

.recommendation-reason i {
  color: var(--brand-accent);
}

.recommendation-action {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: var(--brand-gradient);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-weight: var(--font-medium);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
}

.recommendation-action:hover {
  background: var(--brand-gradient-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* ── AI Insights Section ── */
.ai-insights {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}

.ai-insights h2 {
  font-size: var(--text-2xl);
  font-weight: var(--font-semibold);
  color: var(--text-primary);
  margin-bottom: var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.insights-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-4);
}

.insight-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  transition: all var(--transition-fast);
}

.insight-card:hover {
  border-color: var(--border-primary);
  transform: translateY(-1px);
}

.insight-card h4 {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--text-secondary);
  margin-bottom: var(--space-2);
}

.insight-card p {
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  color: var(--text-primary);
  margin: 0;
}

/* ── Loading State ── */
.recommendations-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 400px;
  gap: var(--space-4);
}

.loading-spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--border-subtle);
  border-top-color: var(--brand-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.loading-text {
  color: var(--text-secondary);
  font-size: var(--text-lg);
}

/* ── Empty State ── */
.recommendations-empty {
  text-align: center;
  padding: var(--space-8);
  color: var(--text-secondary);
}

.empty-icon {
  font-size: var(--text-5xl);
  color: var(--text-muted);
  margin-bottom: var(--space-4);
}

.empty-title {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.empty-description {
  font-size: var(--text-base);
  max-width: 400px;
  margin: 0 auto var(--space-4);
}

/* ── Responsive Design ── */
@media (max-width: 1024px) {
  .recommendation-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  }
  
  .insights-grid {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  }
}

@media (max-width: 768px) {
  .ai-recommendations-page {
    padding: var(--space-4) 0;
  }
  
  .page-title {
    font-size: var(--text-3xl);
  }
  
  .recommendations-overview {
    grid-template-columns: 1fr;
  }
  
  .recommendation-grid {
    grid-template-columns: 1fr;
  }
  
  .insights-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .overview-card {
    flex-direction: column;
    text-align: center;
  }
  
  .overview-icon {
    margin: 0 auto;
  }
}

@media (max-width: 480px) {
  .page-title {
    font-size: var(--text-2xl);
  }
  
  .recommendation-card {
    padding: var(--space-4);
  }
  
  .insights-grid {
    grid-template-columns: 1fr;
  }
  
  .recommendation-header {
    flex-direction: column;
    gap: var(--space-2);
  }
  
  .recommendation-icon {
    align-self: flex-start;
  }
}

/* ── Animations ── */
@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.recommendation-card {
  animation: slideInUp 0.6s ease forwards;
}

.recommendation-card:nth-child(1) { animation-delay: 100ms; }
.recommendation-card:nth-child(2) { animation-delay: 200ms; }
.recommendation-card:nth-child(3) { animation-delay: 300ms; }
.recommendation-card:nth-child(4) { animation-delay: 400ms; }

/* ── Theme Adaptations ── */
[data-theme="light"] .recommendation-card {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .recommendation-card:hover {
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

[data-theme="light"] .overview-card {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .overview-card:hover {
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}