/*
 * =============================================================================
 * LANDING.CSS
 * Landing page specific styles
 * =============================================================================
 *
 * Consolidated CSS for landing page enhancements:
 * - Hero benefits section
 * - Use cases section (Anwendungsbereiche)
 * - Scientific foundation section (Wissenschaftlich fundierte Methodik)
 *
 * Extracted from errors.css - December 2025
 */

/* Hero Benefits Section (ersetzt hero-stats) */
.hero-benefits {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
  padding-top: 3rem;
  border-top: 1px solid var(--gray-200);
}

.benefit-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  animation: fadeInUp 0.6s ease-out both;
}

.benefit-item:nth-child(1) { animation-delay: 0.2s; }
.benefit-item:nth-child(2) { animation-delay: 0.3s; }
.benefit-item:nth-child(3) { animation-delay: 0.4s; }

.benefit-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--primary-50);
  color: var(--primary-600);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all 0.3s ease;
}

.benefit-item:hover .benefit-icon {
  background: var(--primary-100);
  transform: scale(1.05);
}

.benefit-content {
  display: flex;
  flex-direction: column;
}

.benefit-number {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-600);
  line-height: 1;
  font-family: var(--font-display);
}

.benefit-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--gray-900);
  margin-top: 0.25rem;
}

.benefit-desc {
  font-size: 0.75rem;
  color: var(--gray-600);
  margin-top: 0.125rem;
}

/* Use Cases Section (ersetzt Testimonials) */
.use-cases-modern {
  padding: var(--section-padding) 0;
  background: var(--gray-50);
}

.use-cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.use-case-card {
  background: var(--white);
  border-radius: var(--rounded-2xl);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  border: 1px solid var(--gray-200);
}

.use-case-card:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-4px);
  border-color: var(--primary-200);
}

.use-case-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  display: block;
}

.use-case-card h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 0.75rem;
}

.use-case-description {
  color: var(--gray-600);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.use-case-features {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem 0;
}

.use-case-features li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--gray-700);
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
}

.use-case-features svg {
  color: var(--success-500);
  flex-shrink: 0;
}

.use-case-example {
  background: var(--gray-50);
  border-left: 3px solid var(--primary-500);
  padding: 0.75rem 1rem;
  border-radius: 0 var(--rounded-lg) var(--rounded-lg) 0;
  font-size: 0.875rem;
  color: var(--gray-700);
}

.use-case-example strong {
  color: var(--primary-600);
  font-weight: 600;
}

/* Scientific Foundation Section */
.scientific-foundation {
  padding: var(--section-padding) 0;
  background: linear-gradient(135deg, var(--primary-50) 0%, var(--secondary-50) 100%);
}

.foundation-content {
  max-width: 1000px;
  margin: 0 auto;
}

.foundation-content h3 {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--gray-900);
  text-align: center;
  margin-bottom: 1rem;
}

.foundation-intro {
  text-align: center;
  color: var(--gray-600);
  font-size: 1.125rem;
  margin-bottom: 3rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.research-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.research-item {
  background: var(--white);
  padding: 1.5rem;
  border-radius: var(--rounded-xl);
  box-shadow: var(--shadow-sm);
  position: relative;
  border: 1px solid var(--gray-200);
  transition: all 0.3s ease;
}

.research-item:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
  border-color: var(--primary-300);
}

.research-number {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: var(--primary-100);
  color: var(--primary-700);
  min-width: 32px;
  height: 24px;
  padding: 0 0.5rem;
  border-radius: var(--rounded-3xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--primary-200);
}

.research-item h4 {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: 0.75rem;
  padding-right: 2rem;
}

.research-item p {
  color: var(--gray-600);
  line-height: 1.6;
  margin-bottom: 0.75rem;
  font-size: 0.9375rem;
}

.research-source {
  font-size: 0.8125rem !important;
  color: var(--gray-500) !important;
  font-style: italic;
  margin-bottom: 0 !important;
  border-top: 1px solid var(--gray-100);
  padding-top: 0.75rem;
  margin-top: 0.75rem;
}

.research-source a {
  color: var(--primary-600);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.2s ease;
}

.research-source a:hover {
  color: var(--primary-700);
  text-decoration: underline;
}

.foundation-note {
  background: var(--white);
  border: 2px solid var(--primary-200);
  border-radius: var(--rounded-xl);
  padding: 1.5rem;
  text-align: center;
  color: var(--gray-700);
  font-size: 1rem;
  line-height: 1.6;
  box-shadow: var(--shadow-sm);
}

.foundation-note strong {
  color: var(--primary-700);
}

/* Responsive Anpassungen for landing page */
@media (max-width: 768px) {
  .hero-benefits {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .use-cases-grid {
    grid-template-columns: 1fr;
  }

  .research-grid {
    grid-template-columns: 1fr;
  }

  .benefit-item {
    padding: 1rem;
    background: var(--white);
    border-radius: var(--rounded-lg);
    box-shadow: var(--shadow-sm);
  }
}

/* Animations for landing page */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}