/**
 * case-studies.css
 * Dedicated styling for the redesigned filterable Case Studies Hub.
 * Premium corporate data-driven dashboard layout in Brand Red & Stark Light.
 *
 * @package Srushti_Theme
 */

.page-case-studies-wrapper {
  background-color: var(--color-void);
  font-family: var(--font-body);
  color: var(--text-secondary);
}

.case-studies-showcase-section {
  padding: var(--space-16) 0;
  background-color: var(--color-void);
}

/* Redesigned Filters Row - Premium Stark Light Tabs */
.portfolio-filters-wrap {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-12);
}

.portfolio-filter-btn {
  background: transparent;
  border: 1px solid var(--color-border-subtle);
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-tertiary);
  padding: var(--space-2) var(--space-5);
  cursor: pointer;
  letter-spacing: 0.06em;
  transition: all 0.3s ease;
  border-radius: var(--radius-sm);
}

.portfolio-filter-btn:hover {
  color: var(--color-brand-red);
  border-color: var(--color-brand-red);
}

.portfolio-filter-btn.active {
  color: #FFFFFF;
  background-color: var(--color-brand-red);
  border-color: var(--color-brand-red);
}

/* Grid Layout for Case Studies Cards - Modern 3-Column Grid */
.case-studies-list-container {
  display: grid;
  grid-template-columns: repeat(3, 1fr) !important;
  gap: var(--space-8);
}

.case-study-grid-card-link {
  text-decoration: none;
  display: block;
  height: 100%;
}

.case-study-grid-card {
  position: relative;
  background: var(--color-surface-1);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 4px 16px rgba(10, 10, 15, 0.03);
  transition: transform 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out), border-color 0.4s var(--ease-out);
  border: 1px solid var(--color-border-subtle);
  height: 100%;
  min-height: 480px;
}

.case-study-grid-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(10, 10, 15, 0.08);
  border-color: var(--color-brand-red-bright);
}

/* Thumbnail crop wrapper */
.case-study-grid-card-thumb-wrap {
  width: 100%;
  height: 220px;
  overflow: hidden;
  background-color: var(--color-surface-2);
  border-bottom: 1px solid var(--color-border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
}

.case-study-grid-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease-out);
}

.case-study-grid-card:hover .case-study-grid-card-img {
  transform: scale(1.05);
}

.case-study-grid-card-fallback {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary);
  opacity: 0.7;
}

.case-study-grid-card-fallback svg {
  width: 48px;
  height: 48px;
}

/* Content Area below Image */
.case-study-grid-card-content {
  padding: var(--space-6) var(--space-6) var(--space-6);
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.case-study-grid-card-industry {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-brand-red);
  display: block;
  margin-bottom: var(--space-2);
}

.case-study-grid-card-title {
  font-size: 19px;
  font-weight: 800;
  color: var(--text-primary) !important;
  margin: 0 0 var(--space-2.5);
  letter-spacing: -0.015em;
  line-height: 1.35;
}

.case-study-grid-card-desc {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-secondary);
  margin: 0 0 var(--space-5);
  font-weight: 500;
}

/* Read More Link styling */
.case-study-read-more {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: var(--space-1.5);
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-brand-red);
  transition: gap 0.25s ease, color 0.25s ease;
}

.case-study-grid-card:hover .case-study-read-more {
  color: var(--color-brand-red-bright);
  gap: var(--space-2.5);
}

.case-study-read-more .arrow-icon {
  display: block;
  transition: transform 0.25s ease;
}

.case-study-grid-card:hover .case-study-read-more .arrow-icon {
  transform: translateX(2px);
}

/* Responsive updates */
@media (max-width: 1024px) {
  .case-studies-list-container {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: var(--space-6);
  }
}

@media (max-width: 768px) {
  .case-studies-list-container {
    grid-template-columns: 1fr !important;
    gap: var(--space-6);
  }
  
  .case-study-grid-card {
    min-height: auto;
  }
  
  .case-study-grid-card-thumb-wrap {
    height: 200px;
  }
}