/* ============================================
   SAINT ANALYTICS - Case Study Template
   Uses design system from /css/variables.css
   ============================================ */

/* === BASE === */
body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  background: var(--background);
  color: var(--foreground);
  min-height: 100vh;
}

/* === BACKGROUND GRID === */
.case-grid-bg {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: var(--grid-pattern);
  background-size: var(--grid-size) var(--grid-size);
  pointer-events: none;
  z-index: 0;
}

/* === BREADCRUMB NAV === */
.breadcrumb-nav {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  margin: 0 auto;
  padding: 6rem 2rem 0;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--foreground-muted);
  text-decoration: none;
  font-size: 0.9rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-lg);
  transition: all var(--transition-normal);
}

.back-link:hover {
  background: linear-gradient(135deg, #00d4ff, #7c3aed);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.back-link i {
  transition: transform var(--transition-fast);
}

.back-link:hover i {
  transform: translateX(-4px);
}

/* === CASE HERO === */
.case-hero {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  margin: 0 auto;
  padding: 3rem 2rem 4rem;
  text-align: center;
}

.case-hero-content {
  position: relative;
  z-index: 2;
}

.case-company-info {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.case-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.8rem;
  background: linear-gradient(135deg, #00d4ff, #7c3aed);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: var(--font-medium);
  color: #000;
}

.case-badge i {
  color: #000;
}

.case-company-logo {
  max-width: 280px;
  height: auto;
  object-fit: contain;
}

.case-subtitle {
  font-size: 1.25rem;
  color: var(--foreground-muted);
  margin: 0 auto;
  max-width: 650px;
  line-height: 1.6;
}

/* === CASE STATS === */
.case-stats {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.case-stat {
  padding: 1.5rem 2rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  text-align: center;
  min-width: 150px;
}

.stat-value {
  display: block;
  font-size: 2rem;
  font-weight: var(--font-bold);
  background: linear-gradient(135deg, #00d4ff, #7c3aed);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.25rem;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--foreground-muted);
}

/* === CASE CONTENT === */
.case-content {
  position: relative;
  z-index: 2;
  padding: 2rem 0 4rem;
}

.case-container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* === CASE SECTION === */
.case-section {
  margin-bottom: 4rem;
}

.section-header {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 2rem;
}

.section-header.centered {
  justify-content: center;
  text-align: center;
}

.section-icon {
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #00d4ff, #7c3aed);
  border-radius: var(--radius-lg);
  font-size: 1.5rem;
  color: #000;
  flex-shrink: 0;
}

.section-header h2 {
  font-size: 2rem;
  font-weight: var(--font-bold);
  color: var(--foreground);
  margin: 0;
}

.section-subtitle {
  font-size: 1rem;
  color: var(--foreground-muted);
  margin: 0.25rem 0 0;
}

.section-body {
  color: var(--foreground-muted);
}

.lead-text {
  font-size: 1.1rem;
  line-height: 1.7;
  margin-bottom: 2rem;
}

/* === CHALLENGE CARDS === */
.challenge-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.challenge-card {
  padding: 1.5rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-normal);
}

.challenge-card:hover {
  border-color: rgba(239, 68, 68, 0.3);
  transform: translateY(-2px);
}

.challenge-card i {
  font-size: 1.5rem;
  color: #ef4444;
  margin-bottom: 1rem;
  display: block;
}

.challenge-card h4 {
  font-size: 1.1rem;
  font-weight: var(--font-semibold);
  color: var(--foreground);
  margin: 0 0 0.5rem;
}

.challenge-card p {
  font-size: 0.95rem;
  color: var(--foreground-muted);
  margin: 0;
  line-height: 1.6;
}

/* === SOLUTION CARDS === */
.solution-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.solution-card {
  padding: 2rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: all var(--transition-normal);
}

.solution-card:hover {
  border-color: rgba(124, 58, 237, 0.4);
  transform: translateY(-4px);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2), 0 0 20px rgba(124, 58, 237, 0.15);
}

.solution-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #00d4ff, #7c3aed);
  border-radius: var(--radius-lg);
  font-size: 1.75rem;
  color: #000;
}

.solution-card h4 {
  font-size: 1.2rem;
  font-weight: var(--font-semibold);
  color: var(--foreground);
  margin: 0 0 0.75rem;
}

.solution-card p {
  font-size: 0.95rem;
  color: var(--foreground-muted);
  margin: 0;
  line-height: 1.6;
}

/* === TRAINING CARDS === */
.training-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.training-card {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.5rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-normal);
}

.training-card:hover {
  border-color: rgba(124, 58, 237, 0.4);
  transform: translateY(-2px);
}

.training-card > i {
  font-size: 2rem;
  background: linear-gradient(135deg, #00d4ff, #7c3aed);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  flex-shrink: 0;
}

.training-card h4 {
  font-size: 1.1rem;
  font-weight: var(--font-semibold);
  color: var(--foreground);
  margin: 0 0 0.5rem;
}

.training-card p {
  font-size: 0.95rem;
  color: var(--foreground-muted);
  margin: 0;
  line-height: 1.5;
}

/* === RESULTS SECTION === */
.results-section {
  text-align: center;
}

.results-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.result-card {
  padding: 2rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-normal);
}

.result-card:hover {
  border-color: rgba(16, 185, 129, 0.3);
  transform: translateY(-4px);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.result-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(16, 185, 129, 0.1);
  border-radius: var(--radius-lg);
  font-size: 1.75rem;
  color: #10b981;
}

.result-card h4 {
  font-size: 1.2rem;
  font-weight: var(--font-semibold);
  color: var(--foreground);
  margin: 0 0 0.5rem;
}

.result-card p {
  font-size: 0.9rem;
  color: var(--foreground-muted);
  margin: 0;
  line-height: 1.5;
}

/* === CTA SECTION === */
.case-cta {
  position: relative;
  z-index: 2;
  padding: 4rem 2rem;
  background: linear-gradient(to bottom, transparent, rgba(5, 202, 242, 0.05));
}

.cta-content {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.cta-content h2 {
  font-size: 2rem;
  font-weight: var(--font-bold);
  color: var(--foreground);
  margin: 0 0 1rem;
}

.cta-content p {
  font-size: 1.1rem;
  color: var(--foreground-muted);
  margin: 0 0 2rem;
}

.cta-button-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 2rem;
  background: linear-gradient(135deg, #00d4ff, #7c3aed);
  color: #000;
  font-size: 1rem;
  font-weight: var(--font-semibold);
  text-decoration: none;
  border-radius: var(--radius-xl);
  box-shadow: 0 4px 20px rgba(124, 58, 237, 0.3);
  transition: all var(--transition-normal);
}

.cta-button-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(124, 58, 237, 0.4);
  color: #000;
}

.cta-button-primary i {
  transition: transform var(--transition-fast);
}

.cta-button-primary:hover i {
  transform: translateX(4px);
}

/* === FOOTER === */
.footer-new {
  position: relative;
  z-index: 2;
  background: rgba(0, 0, 0, 0.5);
  padding: 4rem 2rem 2rem;
  border-top: 1px solid var(--border);
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 4rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--border);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-logo {
  width: 150px;
  height: auto;
}

.footer-tagline {
  color: var(--foreground-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  margin: 0;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.footer-column {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-column h4 {
  color: var(--foreground);
  font-size: 1rem;
  font-weight: var(--font-semibold);
  margin: 0 0 0.5rem;
}

.footer-column a {
  color: var(--foreground-muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-column a:hover {
  background: linear-gradient(135deg, #00d4ff, #7c3aed);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-bottom p {
  color: var(--foreground-muted);
  font-size: 0.85rem;
  margin: 0;
}

.footer-legal a {
  color: var(--foreground-muted);
  text-decoration: none;
  font-size: 0.85rem;
  transition: color var(--transition-fast);
}

.footer-legal a:hover {
  background: linear-gradient(135deg, #00d4ff, #7c3aed);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* === MOBILE MENU === */
.menuCELU {
  display: flex;
  flex-direction: column;
  align-content: center;
  position: fixed;
  z-index: 1000;
  background: var(--background);
  width: 100%;
  top: 0;
  height: 100%;
  padding-top: 4rem;
  left: -200%;
  transition: 0.4s ease-in-out;
}

.menuCELU.active {
  left: 0;
}

.brandCELU {
  display: flex;
  justify-content: center;
  padding-top: 1.5rem;
}

.brandCELU img {
  width: 120px;
}

.ulCELU {
  margin-top: 2rem;
  padding: 0;
  list-style: none;
  width: 100%;
}

.liCELU {
  text-align: center;
  padding: 1rem 0;
}

.aCELU {
  text-decoration: none;
  color: var(--foreground);
  font-size: 1.5rem;
  font-weight: var(--font-medium);
  transition: color var(--transition-fast);
}

.aCELU:hover {
  background: linear-gradient(135deg, #00d4ff, #7c3aed);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.redesCELU {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}

.iconsCELU {
  width: 35px;
  height: auto;
}

#mobile-current-lang {
  color: var(--foreground);
}

/* === RESPONSIVE === */

/* Tablet landscape */
@media (max-width: 1024px) {
  .case-hero {
    padding: 2.5rem 1.5rem 3rem;
  }

  .case-stats {
    gap: 1.5rem;
  }

  .case-stat {
    min-width: 140px;
    padding: 1.25rem 1.5rem;
  }

  .solution-cards {
    grid-template-columns: repeat(2, 1fr);
  }

  .results-cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Tablet portrait */
@media (max-width: 768px) {
  .breadcrumb-nav {
    padding: 5rem 1.25rem 0;
  }

  .case-hero {
    padding: 2rem 1.25rem 2.5rem;
  }

  .case-company-logo {
    max-width: 220px;
  }

  .case-subtitle {
    font-size: 1rem;
    padding: 0 0.5rem;
  }

  .case-stats {
    gap: 1rem;
  }

  .case-stat {
    min-width: 100px;
    padding: 1rem 1.25rem;
  }

  .stat-value {
    font-size: 1.4rem;
  }

  .stat-label {
    font-size: 0.75rem;
  }

  .case-container {
    padding: 0 1.25rem;
  }

  .case-section {
    margin-bottom: 3rem;
  }

  .section-header {
    flex-direction: column;
    text-align: center;
    align-items: center;
    gap: 0.75rem;
  }

  .section-header h2 {
    font-size: 1.5rem;
  }

  .section-subtitle {
    font-size: 0.9rem;
  }

  .section-icon {
    width: 45px;
    height: 45px;
    font-size: 1.25rem;
  }

  .lead-text {
    font-size: 1rem;
    text-align: center;
  }

  .challenge-cards {
    grid-template-columns: 1fr;
  }

  .solution-cards {
    grid-template-columns: 1fr;
  }

  .training-cards {
    grid-template-columns: 1fr;
  }

  .results-cards {
    grid-template-columns: 1fr;
  }

  .solution-card,
  .result-card {
    padding: 1.5rem;
  }

  .solution-icon,
  .result-icon {
    width: 50px;
    height: 50px;
    font-size: 1.5rem;
    margin-bottom: 1rem;
  }

  .training-card {
    padding: 1.25rem;
  }

  .training-card > i {
    font-size: 1.75rem;
  }

  .case-cta {
    padding: 3rem 1.25rem;
  }

  .cta-content h2 {
    font-size: 1.5rem;
  }

  .cta-content p {
    font-size: 1rem;
  }

  .cta-button-primary {
    padding: 0.875rem 1.75rem;
    font-size: 0.95rem;
  }

  .footer-new {
    padding: 3rem 1.25rem 1.5rem;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 2rem;
    text-align: center;
  }

  .footer-brand {
    align-items: center;
  }

  .footer-links {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 1.5rem;
  }

  .footer-column {
    align-items: center;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* Mobile */
@media (max-width: 480px) {
  .breadcrumb-nav {
    padding: 4.5rem 1rem 0;
  }

  .back-link {
    font-size: 0.85rem;
    padding: 0.4rem 0.75rem;
  }

  .case-hero {
    padding: 1.5rem 1rem 2rem;
  }

  .case-company-info {
    gap: 1rem;
    margin-bottom: 2rem;
  }

  .case-badge {
    font-size: 0.75rem;
    padding: 0.35rem 0.7rem;
  }

  .case-company-logo {
    max-width: 180px;
  }

  .case-subtitle {
    font-size: 0.95rem;
  }

  .case-stats {
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
  }

  .case-stat {
    width: 100%;
    max-width: 280px;
    padding: 1rem;
  }

  .stat-value {
    font-size: 1.5rem;
  }

  .case-container {
    padding: 0 1rem;
  }

  .section-header h2 {
    font-size: 1.35rem;
  }

  .challenge-card,
  .solution-card,
  .result-card {
    padding: 1.25rem;
  }

  .challenge-card h4,
  .solution-card h4,
  .result-card h4 {
    font-size: 1rem;
  }

  .challenge-card p,
  .solution-card p,
  .result-card p,
  .training-card p {
    font-size: 0.9rem;
  }

  .cta-content h2 {
    font-size: 1.35rem;
  }

  .cta-content p {
    font-size: 0.95rem;
  }

  .footer-logo {
    width: 120px;
  }

  .footer-tagline {
    font-size: 0.9rem;
  }
}