/* =============================================================================
   lib/styles/pages/case_study_detail_page.css
   ============================================================================= */

.case-study-detail-page-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background-color: var(--color-surface-primary, #ffffff);
}

.case-study-detail-page__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-12, 3rem);
}

.case-study-detail-page--empty {
  text-align: center;
  padding: var(--space-16, 4rem) 0;
  flex: 1 0 auto;
}

.case-study-detail-page__empty-copy {
  font-size: var(--font-size-body-lg, 1.125rem);
  color: var(--color-text-secondary, #4b5563);
  margin-bottom: var(--space-8, 2rem);
}

/* Metadata tags for Dark Header */
.case-study-detail-page__meta-tag {
  display: inline-flex;
  align-items: center;
  background-color: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--color-text-inverse, #ffffff);
  padding: 0.25rem 0.875rem;
  border-radius: var(--radius-full, 9999px);
  font-size: var(--font-size-sm, 0.875rem);
  font-weight: 500;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

/* --- Content Sections & Dividers --- */
.case-study-detail-page__section {
  /* Increased margin to give sections more breathing room */
  margin-bottom: var(--space-10, 2.5rem); 
}

.case-study-detail-page__section-title {
  font-family: var(--font-heading, system-ui, sans-serif);
  font-size: var(--font-size-h3, 1.5rem);
  font-weight: 700;
  color: var(--color-text-primary, #111827);
  margin-top: 0;
  margin-bottom: var(--space-5, 1.25rem);
  
  /* Adds a full-width subtle line under the title */
  padding-bottom: var(--space-3, 0.75rem);
  border-bottom: 1px solid var(--color-border-subtle, #eaeaea);
  position: relative;
}

/* Adds the premium Blue Accent over the subtle line */
.case-study-detail-page__section-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px; /* Align perfectly over the 1px border */
  width: 4rem; /* Length of the accent */
  height: 3px;
  background-color: var(--color-primary, #0052e0);
  border-radius: var(--radius-full, 9999px);
}

.case-study-detail-page__section-copy {
  line-height: 1.7;
  color: var(--color-text-secondary, #4b5563);
  margin-bottom: var(--space-6, 1.5rem);
  font-size: var(--font-size-body-lg, 1.125rem);
  max-width: 75ch;
}

/* Highlighted Section (Impact) */
.case-study-detail-page__section--highlight {
  background-color: var(--color-background-alt, #f9fafb);
  padding: var(--space-8, 2rem);
  border-radius: var(--radius-xl, 1rem);
  border: 1px solid var(--color-border-subtle, #eaeaea);
}

/* Remove the underline effect specifically for highlighted sections to keep them clean */
.case-study-detail-page__section--highlight .case-study-detail-page__section-title {
  border-bottom: none;
  padding-bottom: 0;
}
.case-study-detail-page__section--highlight .case-study-detail-page__section-title::after {
  display: none;
}

/* Metrics Grid */
.case-study-detail-page__metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-4, 1rem);
  margin-top: var(--space-6, 1.5rem);
}

.case-study-detail-page__metric-box {
  display: flex;
  align-items: center;
  gap: var(--space-4, 1rem);
  background-color: var(--color-surface-primary, #ffffff);
  border-left: 4px solid var(--color-primary, #0052e0);
  padding: var(--space-5, 1.25rem);
  border-radius: 0 var(--radius-lg, 0.75rem) var(--radius-lg, 0.75rem) 0;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
}

.case-study-detail-page__metric-icon {
  color: var(--color-primary, #0052e0);
  font-size: 1.25rem;
  flex-shrink: 0;
}

.case-study-detail-page__metric-text {
  font-weight: 600;
  color: var(--color-text-primary, #111827);
  line-height: 1.4;
}

/* Sidebar Card */
.case-study-detail-page__sidebar-card {
  background-color: var(--color-background-alt, #f9fafb);
  padding: var(--space-6, 1.5rem);
  border-radius: var(--radius-xl, 1rem);
  border: 1px solid var(--color-border-subtle, #eaeaea);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
}

.case-study-detail-page__sidebar-icon {
  font-size: 1.5rem;
  color: var(--color-primary, #0052e0);
  margin-bottom: var(--space-3, 0.75rem);
}

.case-study-detail-page__sidebar-title {
  font-family: var(--font-heading, system-ui, sans-serif);
  font-size: var(--font-size-h5, 1.125rem);
  font-weight: 700;
  color: var(--color-text-primary, #111827);
  margin-top: 0;
  margin-bottom: var(--space-6, 1.5rem);
}

.case-study-detail-page__sidebar-group {
  margin-bottom: var(--space-5, 1.25rem);
}

.case-study-detail-page__sidebar-label {
  display: block;
  font-size: var(--font-size-xs, 0.75rem);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted, #6b7280);
  margin-bottom: var(--space-2, 0.5rem);
  font-weight: 600;
}

.case-study-detail-page__sidebar-value {
  font-size: var(--font-size-sm, 0.875rem);
  color: var(--color-text-primary, #111827);
  font-weight: 500;
  margin: 0;
}

.case-study-detail-page__sidebar-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3, 0.75rem);
}

.case-study-detail-page__sidebar-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3, 0.75rem);
}

.case-study-detail-page__sidebar-item-icon {
  color: #10B981; /* Success Green */
  font-size: 1rem;
  margin-top: 0.125rem;
  flex-shrink: 0;
}

.case-study-detail-page__sidebar-item-text {
  font-size: var(--font-size-sm, 0.875rem);
  line-height: 1.5;
  color: var(--color-text-secondary, #4b5563);
}

/* Buttons */
.case-study-detail-page__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0 var(--space-6, 1.5rem);
  border-radius: var(--radius-full, 9999px);
  font-weight: 600;
  font-size: var(--font-size-body, 1rem);
  text-decoration: none;
  transition: 
    transform var(--motion-duration-fast, 200ms) var(--motion-ease-out, ease-out), 
    background-color var(--motion-duration-fast, 200ms) var(--motion-ease-out, ease-out);
  cursor: pointer;
  border: none;
  width: 100%;
  text-align: center;
  margin-top: var(--space-4, 1rem);
}

.case-study-detail-page__btn:active {
  transform: scale(0.98);
}

.case-study-detail-page__btn--primary {
  background-color: var(--color-primary, #0052e0);
  color: var(--color-text-inverse, #ffffff);
}

.case-study-detail-page__btn--primary:hover {
  background-color: var(--color-primary-dark, #003db3);
}

.case-study-detail-page__btn--secondary {
  background-color: var(--color-surface-primary, #ffffff);
  color: var(--color-text-primary, #111827);
  border: 1px solid var(--color-border, #d1d5db);
}

.case-study-detail-page__btn--secondary:hover {
  background-color: var(--color-background-alt, #f9fafb);
}

/* =========================================================================
   Choreographed Load Sequences (ScrollReveal Integration for Custom Blocks)
   ========================================================================= */

@media (prefers-reduced-motion: no-preference) {
  /* Standard Content Sections */
  .case-study-detail-page__section > * {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity var(--motion-duration-medium, 400ms) var(--motion-ease-out, ease-out),
                transform var(--motion-duration-medium, 400ms) var(--motion-ease-out, ease-out);
  }

  .is-visible > .case-study-detail-page__section > * {
    opacity: 1;
    transform: translateY(0);
  }

  .is-visible > .case-study-detail-page__section > :nth-child(1) { transition-delay: 0.1s; }
  .is-visible > .case-study-detail-page__section > :nth-child(2) { transition-delay: 0.2s; }
  .is-visible > .case-study-detail-page__section > :nth-child(3) { transition-delay: 0.3s; }

  /* Sidebar Profile Stagger */
  .case-study-detail-page__sidebar-card > * {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity var(--motion-duration-medium, 400ms) var(--motion-ease-out, ease-out),
                transform var(--motion-duration-medium, 400ms) var(--motion-ease-out, ease-out);
  }

  .is-visible > .case-study-detail-page__sidebar-card > * {
    opacity: 1;
    transform: translateY(0);
  }

  .is-visible > .case-study-detail-page__sidebar-card > :nth-child(1) { transition-delay: 0.1s; }
  .is-visible > .case-study-detail-page__sidebar-card > :nth-child(2) { transition-delay: 0.2s; }
  .is-visible > .case-study-detail-page__sidebar-card > :nth-child(3) { transition-delay: 0.3s; }
  .is-visible > .case-study-detail-page__sidebar-card > :nth-child(4) { transition-delay: 0.4s; }
  .is-visible > .case-study-detail-page__sidebar-card > :nth-child(5) { transition-delay: 0.5s; }

  /* Empty State Stagger */
  .case-study-detail-page--empty > * {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity var(--motion-duration-medium, 400ms) var(--motion-ease-out, ease-out),
                transform var(--motion-duration-medium, 400ms) var(--motion-ease-out, ease-out);
  }

  .is-visible > .case-study-detail-page--empty > * {
    opacity: 1;
    transform: translateY(0);
  }

  .is-visible > .case-study-detail-page--empty > :nth-child(1) { transition-delay: 0.1s; }
  .is-visible > .case-study-detail-page--empty > :nth-child(2) { transition-delay: 0.25s; }
}