/* ==========================================================================
   MSQ ANALYTICS WORLD — CASE STUDIES MASTER STYLESHEET
   Comprehensive Enterprise Consulting Case Studies System
   ========================================================================== */

/* Full Width Container standard aligned with Demos Center */
.case-studies-page-container {
  max-width: 1440px;
  width: 94%;
  margin: 0 auto;
  padding-left: 1rem;
  padding-right: 1rem;
}

/* --------------------------------------------------------------------------
   1. CASE STUDIES HERO & FILTER BAR
   -------------------------------------------------------------------------- */
.case-hero-section {
  background: linear-gradient(135deg, var(--msq-navy-950) 0%, var(--msq-navy-900) 50%, var(--msq-navy-800) 100%);
  padding: 4.5rem 0 3.5rem 0;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.case-hero-section::before {
  content: '';
  position: absolute;
  top: -25%;
  right: -8%;
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, rgba(1, 117, 254, 0.18) 0%, rgba(90, 205, 254, 0.05) 50%, transparent 70%);
  pointer-events: none;
}

.case-filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  max-width: 1200px;
  margin: 0 auto 2rem auto;
  padding: 0.4rem 0.8rem;
  background: var(--slate-100);
  border-radius: var(--radius-full);
  border: 1px solid var(--slate-200);
}

.case-filter-btn {
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.45rem 1rem;
  border-radius: var(--radius-full);
  background: transparent;
  color: var(--slate-600);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.case-filter-btn:hover {
  color: var(--msq-navy-850);
  background: rgba(255, 255, 255, 0.8);
}

.case-filter-btn.active {
  background: var(--msq-navy-850);
  color: var(--pure-white);
  box-shadow: 0 2px 8px rgba(10, 25, 47, 0.2);
}

/* --------------------------------------------------------------------------
   2. CASE STUDIES 12-CARD GRID
   -------------------------------------------------------------------------- */
.case-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
  margin-top: 1.5rem;
}

.cs-card {
  background: var(--pure-white);
  border: 1.5px solid var(--slate-200);
  border-radius: var(--radius-xl);
  padding: 2rem 1.85rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  cursor: pointer;
  position: relative;
  text-decoration: none;
  color: inherit;
}

.cs-card:hover {
  transform: translateY(-5px);
  border-color: var(--msq-blue-400);
  box-shadow: 0 16px 32px -8px rgba(1, 117, 254, 0.15), 0 4px 12px rgba(10, 25, 47, 0.06);
}

.cs-card-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  gap: 0.5rem;
}

.cs-category-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--msq-blue-600);
  background: var(--msq-blue-50);
  border: 1px solid rgba(1, 117, 254, 0.2);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.cs-badge-pill {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--slate-500);
  background: var(--slate-100);
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--slate-200);
}

.cs-card-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--msq-navy-850);
  line-height: 1.35;
  margin: 0 0 0.85rem 0;
  transition: color var(--transition-fast);
}

.cs-card:hover .cs-card-title {
  color: var(--msq-blue-600);
}

.cs-card-desc {
  font-size: 0.92rem;
  color: var(--slate-600);
  line-height: 1.55;
  margin: 0 0 1.5rem 0;
  flex: 1;
}

.cs-card-footer {
  padding-top: 1.25rem;
  border-top: 1px solid var(--slate-100);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.cs-tech-text {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--slate-400);
  font-weight: 500;
}

.cs-explore-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--msq-blue-600);
  transition: all var(--transition-fast);
}

.cs-card:hover .cs-explore-btn {
  transform: translateX(3px);
  color: var(--msq-blue-500);
}

/* --------------------------------------------------------------------------
   3. DETAILED CASE STUDY VIEW STYLES
   -------------------------------------------------------------------------- */
.cs-detail-wrapper {
  display: block;
  animation: fadeInDetail 0.35s ease-out;
}

@keyframes fadeInDetail {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Breadcrumbs & Back Navigation */
.cs-breadcrumb-bar {
  background: var(--msq-navy-950);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding: 0.9rem 0;
}

.cs-back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--msq-cyan-400);
  font-size: 0.88rem;
  font-weight: 600;
  text-decoration: none;
  transition: color var(--transition-fast);
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
}

.cs-back-link:hover {
  color: var(--pure-white);
}

/* Detail Hero */
.cs-detail-hero {
  background: linear-gradient(135deg, #030B1E 0%, #081630 50%, #0C2856 100%);
  padding: 4.5rem 0 3.5rem 0;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.cs-detail-hero-content {
  max-width: 950px;
}

.cs-detail-tag-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.cs-detail-title {
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 800;
  color: var(--pure-white);
  line-height: 1.18;
  margin: 0 0 1rem 0;
  letter-spacing: -0.02em;
}

.cs-detail-subtitle {
  font-size: 1.25rem;
  color: var(--msq-cyan-200);
  line-height: 1.5;
  margin: 0 0 1.5rem 0;
  font-weight: 500;
}

.cs-detail-intro-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-left: 4px solid var(--msq-cyan-400);
  border-radius: var(--radius-md);
  padding: 1.5rem 1.75rem;
  margin-top: 1.75rem;
  color: var(--slate-100);
  font-size: 1.05rem;
  line-height: 1.65;
}

/* Detail Content Layout (Main + Sidebar) */
.cs-detail-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 3rem;
  padding: 3.5rem 0;
}

.cs-main-column {
  display: flex;
  flex-direction: column;
  gap: 2.75rem;
}

/* Enterprise Section Card Component */
.cs-section-block {
  background: var(--pure-white);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-xl);
  padding: 2.5rem 2.5rem;
  box-shadow: var(--shadow-sm);
}

.cs-section-header {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1.5px solid var(--slate-100);
}

.cs-section-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  background: var(--msq-blue-50);
  color: var(--msq-blue-600);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.cs-section-title {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--msq-navy-850);
  margin: 0;
}

.cs-text-paragraph {
  font-size: 1.02rem;
  color: var(--slate-700);
  line-height: 1.75;
  margin-bottom: 1.25rem;
}

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

/* Bullet Point Lists for Challenge & Complexity */
.cs-bullet-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.cs-bullet-item {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  font-size: 0.98rem;
  color: var(--slate-700);
  line-height: 1.6;
}

.cs-bullet-icon-alert {
  width: 20px;
  height: 20px;
  color: #DC2626;
  flex-shrink: 0;
  margin-top: 2px;
}

.cs-bullet-icon-check {
  width: 20px;
  height: 20px;
  color: #059669;
  flex-shrink: 0;
  margin-top: 2px;
}

.cs-bullet-icon-blue {
  width: 20px;
  height: 20px;
  color: var(--msq-blue-600);
  flex-shrink: 0;
  margin-top: 2px;
}

/* Architecture Flow Steps */
.cs-flow-container {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-top: 1rem;
}

.cs-flow-step {
  background: var(--slate-50);
  border: 1px solid var(--slate-200);
  border-left: 4px solid var(--msq-blue-600);
  border-radius: var(--radius-md);
  padding: 1.15rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  transition: all var(--transition-fast);
}

.cs-flow-step:hover {
  background: var(--pure-white);
  border-color: var(--msq-blue-400);
  box-shadow: var(--shadow-sm);
  transform: translateX(4px);
}

.cs-flow-name {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.02rem;
  color: var(--msq-navy-850);
}

.cs-flow-desc {
  font-size: 0.9rem;
  color: var(--slate-600);
  text-align: right;
}

/* Implementation Phases Timeline */
.cs-phases-grid {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: 1rem;
  margin-top: 1rem;
}

.cs-phase-card {
  background: var(--slate-50);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-lg);
  padding: 1.35rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
}

.cs-phase-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--msq-blue-600);
  background: var(--msq-blue-50);
  border: 1px solid rgba(0, 102, 255, 0.2);
  padding: 0.3rem 0.65rem;
  border-radius: var(--radius-sm);
}

/* Business Outcomes Grid */
.cs-outcomes-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-top: 1rem;
}

.cs-outcome-card {
  background: linear-gradient(135deg, #F8FAFC 0%, #EFF6FF 100%);
  border: 1.5px solid #DBEAFE;
  border-radius: var(--radius-lg);
  padding: 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
}

.cs-outcome-metric {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--msq-blue-600);
  line-height: 1;
  margin-bottom: 0.35rem;
}

.cs-outcome-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--msq-navy-850);
  text-transform: uppercase;
  margin-bottom: 0.65rem;
  letter-spacing: 0.04em;
}

.cs-outcome-desc {
  font-size: 0.92rem;
  color: var(--slate-600);
  line-height: 1.5;
}

/* Key Capabilities Badges Grid */
.cs-capabilities-grid {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: 0.75rem;
  margin-top: 1rem;
}

.cs-capability-item {
  background: var(--slate-50);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-md);
  padding: 0.9rem 1.25rem;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--slate-800);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Technologies Cloud */
.cs-tech-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1rem;
}

.cs-tech-pill {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  background: var(--msq-navy-850);
  color: var(--pure-white);
  padding: 0.45rem 0.9rem;
  border-radius: var(--radius-md);
}

/* Sidebar Component */
.cs-sidebar {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.cs-sidebar-card {
  background: var(--pure-white);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-xl);
  padding: 2rem 1.75rem;
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 90px;
}

.cs-sidebar-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--msq-navy-850);
  margin: 0 0 1.25rem 0;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--slate-100);
}

.cs-sidebar-nav {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.cs-sidebar-nav-link {
  display: block;
  font-size: 0.88rem;
  color: var(--slate-600);
  text-decoration: none;
  padding: 0.35rem 0.65rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.cs-sidebar-nav-link:hover {
  color: var(--msq-blue-600);
  background: var(--msq-blue-50);
  padding-left: 0.85rem;
}

.cs-sidebar-cta-btn {
  width: 100%;
  justify-content: center;
  padding: 0.85rem 1.25rem;
  font-size: 0.92rem;
}

/* --------------------------------------------------------------------------
   4. RESPONSIVE BREAKPOINTS
   -------------------------------------------------------------------------- */
@media (max-width: 1200px) {
  .case-cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .cs-detail-layout {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .cs-sidebar-card {
    position: static;
  }
}

@media (max-width: 768px) {
  .case-cards-grid {
    grid-template-columns: 1fr;
  }
  
  .cs-outcomes-grid {
    grid-template-columns: 1fr;
  }
  
  .cs-section-block {
    padding: 1.75rem 1.25rem;
  }
  
  .cs-flow-step {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
  
  .cs-flow-desc {
    text-align: left;
  }
  
  .cs-phase-card {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
}