/* ========================================
   CASE STUDY PAGES - DEDICATED STYLES
   Professional, Recruiter-Optimized Layout
   ======================================== */

/* ========================================
   CASE STUDY PAGE BODY
   ======================================== */

.case-study-page {
    background: var(--bg-primary);
}

/* ========================================
   CASE STUDY HERO
   ======================================== */

.case-study-hero {
    position: relative;
    padding: calc(80px + var(--spacing-xl)) 0 var(--spacing-xl) 0;
    overflow: hidden;
    min-height: 50vh;
    display: flex;
    align-items: center;
}

.case-study-hero .hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0.3;
    z-index: 0;
}

.case-study-header {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.project-category {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: #C4B5FD;
    margin-bottom: var(--spacing-md);
    padding: 0.5rem 1rem;
    background: rgba(139, 92, 246, 0.25);
    border-radius: var(--radius-full);
    border: 1px solid rgba(196, 181, 253, 0.3);
}

.case-study-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    letter-spacing: -1px;
    line-height: 1.1;
}

.case-study-tagline {
    font-size: clamp(1.125rem, 2vw, 1.5rem);
    color: #D1D5DB;
    line-height: 1.6;
    max-width: 700px;
    margin: 0 auto;
}

/* ========================================
   NAVIGATION UPDATE FOR CASE STUDIES
   ======================================== */

.back-link {
    color: #D1D5DB;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.back-link:hover {
    color: var(--accent-primary);
}

/* ========================================
   CONTAINER VARIATIONS
   ======================================== */

.container-narrow {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* ========================================
   CASE STUDY SECTIONS
   ======================================== */

.case-study-section {
    padding: var(--spacing-xl) 0;
    position: relative;
}

.case-study-section.bg-alt {
    background: var(--bg-secondary);
}

.content-block {
    margin-bottom: var(--spacing-xl);
}

.content-block:last-child {
    margin-bottom: 0;
}

/* ========================================
   TYPOGRAPHY
   ======================================== */

.section-heading {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    letter-spacing: -0.5px;
}

.subsection-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.large-text {
    font-size: 1.25rem;
    line-height: 1.8;
    color: #E5E7EB;
    margin-bottom: var(--spacing-lg);
}

.content-block p {
    font-size: 1.0625rem;
    line-height: 1.8;
    color: #E5E7EB;
    margin-bottom: var(--spacing-md);
}

.content-block ul {
    list-style: none;
    padding-left: 0;
}

.content-block ul li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.5rem;
    color: #E5E7EB;
}

.content-block ul li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: #A78BFA;
    font-weight: 600;
}

/* ========================================
   TWO COLUMN GRID
   ======================================== */

.two-column-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.role-list {
    margin: var(--spacing-sm) 0;
}

.timeline {
    margin-top: var(--spacing-sm);
    color: #9CA3AF;
    font-size: 0.9375rem;
}

/* ========================================
   STATS GRID
   ======================================== */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.stat-card {
    background: rgba(55, 65, 100, 0.5);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(139, 92, 246, 0.25);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    transition: all var(--transition-normal);
}

.stat-card:hover {
    border-color: var(--border-color);
    transform: translateY(-4px);
}

.stat-number {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    color: #C4B5FD;
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    color: #D1D5DB;
    font-size: 0.9375rem;
}

/* ========================================
   PROBLEM STATEMENT
   ======================================== */

.problem-statement {
    background: rgba(139, 92, 246, 0.2);
    border-left: 4px solid #A78BFA;
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
}

/* ========================================
   PAIN POINTS GRID
   ======================================== */

.pain-points-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.pain-point-card {
    background: rgba(55, 65, 100, 0.5);
    border: 1px solid rgba(139, 92, 246, 0.25);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: all var(--transition-normal);
}

.pain-point-card:hover {
    border-color: var(--border-color);
    transform: translateY(-4px);
}

.pain-point-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.pain-point-card h4 {
    color: var(--text-primary);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xs);
}

.pain-point-card p {
    color: #D1D5DB;
    font-size: 0.9375rem;
    margin: 0;
}

/* ========================================
   RESEARCH METHODS
   ======================================== */

.research-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.method-card {
    background: rgba(55, 65, 100, 0.5);
    border: 1px solid rgba(139, 92, 246, 0.3);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
}

.method-card h4 {
    color: #C4B5FD;
    font-size: 1rem;
    margin-bottom: var(--spacing-xs);
}

.method-card p {
    color: #D1D5DB;
    font-size: 0.9375rem;
    margin: 0;
}

/* ========================================
   INSIGHTS LIST
   ======================================== */

.insights-list {
    margin-top: var(--spacing-lg);
}

.insight-item {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-subtle);
}

.insight-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.insight-number {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-secondary);
    border-radius: var(--radius-md);
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
}

.insight-content h4 {
    color: var(--text-primary);
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
}

.insight-content p {
    color: #D1D5DB;
    margin: 0;
}

/* ========================================
   IMAGE PLACEHOLDERS
   ======================================== */

.image-placeholder {
    background: rgba(55, 65, 100, 0.4);
    border: 2px dashed rgba(139, 92, 246, 0.4);
    border-radius: var(--radius-lg);
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: var(--spacing-lg) 0;
    transition: all var(--transition-normal);
}

.image-placeholder:hover {
    border-color: #A78BFA;
    background: rgba(139, 92, 246, 0.15);
}

.image-placeholder.large {
    min-height: 600px;
}

.placeholder-text {
    color: #9CA3AF;
    font-size: 1rem;
    text-align: center;
    line-height: 1.6;
}

/* ========================================
   CALLOUT BOX
   ======================================== */

.callout-box {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.2) 0%, rgba(99, 102, 241, 0.2) 100%);
    border: 1px solid rgba(139, 92, 246, 0.3);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
}

.callout-box h4 {
    color: #C4B5FD;
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
}

.callout-box p {
    color: #E5E7EB;
    margin: 0;
}

/* ========================================
   DESIGN DETAILS GRID
   ======================================== */

.design-details-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
}

.design-detail {
    background: rgba(55, 65, 100, 0.5);
    border: 1px solid rgba(139, 92, 246, 0.25);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
}

.design-detail h4 {
    color: var(--text-primary);
    font-size: 1rem;
    margin-bottom: var(--spacing-xs);
}

.design-detail p {
    color: #D1D5DB;
    font-size: 0.9375rem;
    margin: 0;
}

/* Image placeholder within design detail cards */
.detail-image-placeholder {
    width: 100%;
    height: 200px;
    background: rgba(139, 92, 246, 0.2);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    border: 2px dashed rgba(139, 92, 246, 0.4);
    transition: all var(--transition-normal);
}

.detail-image-placeholder:hover {
    border-color: #A78BFA;
    background: rgba(139, 92, 246, 0.3);
}

.detail-image-placeholder span {
    font-size: 2.5rem;
    opacity: 0.6;
}

/* ========================================
   PAGE SHOWCASE (for site pages with individual image placeholders)
   ======================================== */

.page-showcase {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-lg);
}

.page-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.page-card {
    background: rgba(55, 65, 100, 0.5);
    border: 1px solid rgba(139, 92, 246, 0.25);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
}

.page-card h4 {
    color: var(--text-primary);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xs);
}

.page-card p {
    color: #D1D5DB;
    font-size: 0.9375rem;
    margin: 0;
}

/* Page showcase grid - vertical layout with card above image */
.page-showcase-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-lg);
}

.page-item-vertical {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.page-info-card {
    background: rgba(55, 65, 100, 0.5);
    border: 1px solid rgba(139, 92, 246, 0.25);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
}

.page-info-card h4 {
    color: var(--text-primary);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xs);
}

.page-info-card p {
    color: #D1D5DB;
    font-size: 0.9375rem;
    margin: 0;
}

/* ========================================
   FEATURE SHOWCASE
   ======================================== */

.feature-showcase {
    margin-top: var(--spacing-lg);
}

.feature-item {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: rgba(55, 65, 100, 0.5);
    border: 1px solid rgba(139, 92, 246, 0.25);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
}

.feature-item:hover {
    border-color: rgba(139, 92, 246, 0.5);
    transform: translateX(8px);
}

.feature-icon {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-secondary);
    border-radius: var(--radius-md);
    font-size: 1.75rem;
}

.feature-item h4 {
    color: var(--text-primary);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xs);
}

.feature-item p {
    color: #D1D5DB;
    margin: 0;
}

/* ========================================
   RESULTS GRID
   ======================================== */

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.result-card {
    background: rgba(55, 65, 100, 0.5);
    border: 1px solid rgba(139, 92, 246, 0.3);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    transition: all var(--transition-normal);
}

.result-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--glow-sm);
}

.result-metric {
    font-family: var(--font-display);
    font-size: 3.5rem;
    font-weight: 700;
    background: var(--gradient-secondary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
}

.result-card h4 {
    color: var(--text-primary);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
}

.result-card p {
    color: #D1D5DB;
    font-size: 0.9375rem;
    margin: 0;
}

/* ========================================
   TESTIMONIALS
   ======================================== */

.testimonials {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.testimonial-card {
    background: rgba(55, 65, 100, 0.5);
    border-left: 3px solid #A78BFA;
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
}

.testimonial-text {
    color: #E5E7EB;
    font-size: 1.0625rem;
    font-style: italic;
    margin-bottom: var(--spacing-sm);
    line-height: 1.7;
}

.testimonial-author {
    color: #9CA3AF;
    font-size: 0.9375rem;
    margin: 0;
}

/* ========================================
   LEARNINGS LIST
   ======================================== */

.learnings-list {
    margin-top: var(--spacing-lg);
}

.learning-item {
    background: rgba(55, 65, 100, 0.5);
    border: 1px solid rgba(139, 92, 246, 0.25);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.learning-item h4 {
    color: #C4B5FD;
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
}

.learning-item p {
    color: #E5E7EB;
    margin: 0;
}

/* ========================================
   NEXT STEPS BOX
   ======================================== */

.next-steps-box {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.2) 0%, rgba(99, 102, 241, 0.2) 100%);
    border: 1px solid rgba(139, 92, 246, 0.3);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.next-steps-box h3 {
    color: var(--text-primary);
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
}

.next-steps-box ul li {
    padding-left: 1.5rem;
}

/* ========================================
   BACK TO PORTFOLIO SECTION
   ======================================== */

.back-to-portfolio {
    padding: var(--spacing-xl) 0;
    text-align: center;
    background: var(--bg-secondary);
}

.btn-back-portfolio {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 1.125rem 2.5rem;
    background: var(--gradient-secondary);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 1.0625rem;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-md), var(--glow-sm);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-back-portfolio:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg), var(--glow-md);
}

.btn-back-portfolio svg {
    transition: transform var(--transition-normal);
}

.btn-back-portfolio:hover svg {
    transform: translateX(-3px);
}

/* ========================================
   RESPONSIVE - TABLET
   ======================================== */

@media (max-width: 768px) {
    .two-column-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .pain-points-grid {
        grid-template-columns: 1fr;
    }
    
    .research-methods {
        grid-template-columns: 1fr;
    }
    
    .design-details-grid {
        grid-template-columns: 1fr;
    }
    
    .detail-image-placeholder {
        height: 150px;
    }
    
    .results-grid {
        grid-template-columns: 1fr;
    }
    
    .feature-item {
        flex-direction: column;
        text-align: center;
    }
    
    .insight-item {
        flex-direction: column;
    }
    
    .image-placeholder {
        min-height: 300px;
    }
    
    .image-placeholder.large {
        min-height: 400px;
    }
    
    .container-narrow {
        padding: 0 var(--spacing-md);
    }
    
    .case-study-section {
        padding: var(--spacing-lg) 0;
    }
}