/* ============================================
   case-studies.css - Deecipher Technologies
   Case Studies Page Styles
   Follows the same design system as about.css, careers.css, etc.
   Version: 2.0 | Production Ready
   ============================================ */

/* ============================================
   1. Hero Section (Original About Page Style)
   ============================================ */
.case-hero-section {
    padding: 80px 0 60px;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    position: relative;
    overflow: hidden;
}

.case-hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 60%;
    height: 120%;
    background: radial-gradient(circle, rgba(26, 35, 126, 0.03) 0%, transparent 70%);
    pointer-events: none;
}

.section-tag {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 1.25rem;
    font-family: var(--font-body);
}

.section-tag.center {
    text-align: center;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-purple) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero-title {
    font-size: 3.2rem;
    font-weight: 700;
    line-height: 1.2;
    font-family: var(--font-heading);
    color: var(--primary-dark);
    margin-bottom: 1.5rem;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--neutral-500);
    margin-bottom: 2rem;
    line-height: 1.6;
}

/* Stats Row */
.stats-row {
    display: flex;
    flex-wrap: wrap;
    gap: 2.5rem;
    margin-top: 1rem;
}

.stat-item {
    text-align: left;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-blue);
    font-family: var(--font-heading);
    line-height: 1.2;
    display: block;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--neutral-500);
    font-weight: 500;
}

/* Testimonial Feature Card */
.testimonial-feature-card {
    background: var(--white);
    border-radius: 24px;
    padding: 1.75rem;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--neutral-200);
    transition: all 0.4s cubic-bezier(0.2, 0.9, 0.4, 1.1);
}

.testimonial-feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.quote-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.quote-icon {
    font-size: 1.5rem;
    color: var(--primary-blue);
    opacity: 0.4;
}

.testimonial-text {
    font-size: 0.95rem;
    color: var(--neutral-600);
    line-height: 1.6;
    margin-bottom: 1.25rem;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.author-avatar {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--primary-blue);
}

.author-info {
    display: flex;
    flex-direction: column;
}

.author-info strong {
    font-size: 0.9rem;
    color: var(--primary-dark);
}

.author-info span {
    font-size: 0.75rem;
    color: var(--neutral-500);
}

/* ============================================
   2. Filter Section
   ============================================ */
.filter-section {
    padding: 20px 0 40px;
    background: var(--white);
}

.filter-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.filter-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--neutral-600);
}

.filter-label i {
    color: var(--primary-blue);
}

.filter-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.filter-btn {
    padding: 0.5rem 1.5rem;
    border: 1px solid var(--neutral-300);
    background: var(--white);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--neutral-600);
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary-blue);
    border-color: var(--primary-blue);
    color: white;
    transform: translateY(-2px);
}

/* ============================================
   3. Featured Case Study Section
   ============================================ */
.featured-case-section {
    padding: 20px 0 60px;
    background: var(--white);
}

.featured-case-card {
    background: var(--white);
    border-radius: 28px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--neutral-200);
    transition: all 0.4s cubic-bezier(0.2, 0.9, 0.4, 1.1);
}

.featured-case-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.featured-case-image {
    height: 100%;
    min-height: 350px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.featured-case-content {
    padding: 2.5rem;
}

.featured-badge {
    display: inline-block;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 700;
    color: var(--primary-blue);
    background: rgba(26, 35, 126, 0.08);
    padding: 0.35rem 1rem;
    border-radius: 50px;
    margin-bottom: 1rem;
}

.featured-case-content h2 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--primary-dark);
}

.case-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-bottom: 1.25rem;
}

.case-meta span {
    font-size: 0.8rem;
    color: var(--neutral-500);
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.case-meta span i {
    color: var(--primary-blue);
}

.case-description {
    font-size: 0.95rem;
    color: var(--neutral-600);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.case-results {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    margin-bottom: 1.75rem;
    padding: 1rem 0;
    border-top: 1px solid var(--neutral-200);
    border-bottom: 1px solid var(--neutral-200);
}

.result-item {
    text-align: left;
}

.result-number {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-blue);
    font-family: var(--font-heading);
}

.result-label {
    font-size: 0.7rem;
    color: var(--neutral-500);
}

.btn-view-case {
    background: transparent;
    border: none;
    padding: 0;
    font-weight: 600;
    color: var(--primary-blue);
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.btn-view-case:hover {
    color: var(--primary-purple);
    gap: 0.5rem;
}

.btn-view-case i {
    transition: transform 0.3s ease;
}

.btn-view-case:hover i {
    transform: translateX(4px);
}

/* ============================================
   4. Cases Grid Section
   ============================================ */
.cases-grid-section {
    padding: 60px 0;
    background: var(--neutral-100);
}

.section-heading {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--primary-dark);
    font-family: var(--font-heading);
}

.section-subheading {
    font-size: 1.1rem;
    color: var(--neutral-500);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.case-card {
    background: var(--white);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.2, 0.9, 0.4, 1.1);
    box-shadow: var(--shadow-sm);
    height: 100%;
    border: 1px solid var(--neutral-200);
}

.case-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-blue);
}

.case-card-image {
    position: relative;
    height: 220px;
    overflow: hidden;
}

.case-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.case-category {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--primary-blue);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    font-size: 0.7rem;
    font-weight: 600;
}

.case-card-content {
    padding: 1.5rem;
}

.case-card-content h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--primary-dark);
}

.case-short-desc {
    font-size: 0.85rem;
    color: var(--neutral-600);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.case-key-results {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1.25rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--neutral-200);
}

.key-result {
    text-align: left;
}

.result-value {
    display: block;
    font-size: 1rem;
    font-weight: 700;
    color: var(--primary-blue);
}

.result-label {
    font-size: 0.65rem;
    color: var(--neutral-500);
}

.btn-read-more {
    background: transparent;
    border: none;
    padding: 0;
    font-weight: 600;
    color: var(--primary-blue);
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.85rem;
}

.btn-read-more:hover {
    color: var(--primary-purple);
}

.btn-read-more i {
    transition: transform 0.3s ease;
}

.btn-read-more:hover i {
    transform: translateX(4px);
}

/* ============================================
   5. Impact Section
   ============================================ */
.impact-section {
    padding: 80px 0;
    background: var(--white);
}

.impact-card {
    text-align: center;
    padding: 1.5rem;
    background: var(--white);
    border-radius: 20px;
    transition: all 0.4s cubic-bezier(0.2, 0.9, 0.4, 1.1);
    border: 1px solid var(--neutral-200);
    box-shadow: var(--shadow-sm);
}

.impact-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-blue);
}

.impact-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-blue);
    font-family: var(--font-heading);
    margin-bottom: 0.5rem;
}

.impact-label {
    font-size: 0.85rem;
    color: var(--neutral-500);
}

/* ============================================
   6. Testimonials Section
   ============================================ */
.testimonials-case-section {
    padding: 80px 0;
    background: var(--neutral-100);
}

.testimonial-case-card {
    background: var(--white);
    border-radius: 20px;
    padding: 1.75rem;
    transition: all 0.4s cubic-bezier(0.2, 0.9, 0.4, 1.1);
    border: 1px solid var(--neutral-200);
    height: 100%;
    box-shadow: var(--shadow-sm);
}

.testimonial-case-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-blue);
}

.testimonial-quote {
    font-size: 3rem;
    font-family: Georgia, serif;
    color: var(--primary-blue);
    opacity: 0.3;
    line-height: 1;
    margin-bottom: 0.5rem;
}

.testimonial-text-case {
    font-size: 0.9rem;
    color: var(--neutral-600);
    line-height: 1.7;
    margin-bottom: 1.25rem;
    font-style: italic;
}

.testimonial-author-case {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.testimonial-author-case img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
}

.testimonial-author-case h6 {
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 0.2rem;
    color: var(--primary-dark);
}

.testimonial-author-case span {
    font-size: 0.75rem;
    color: var(--neutral-500);
}

/* ============================================
   7. CTA Section
   ============================================ */
.cta-case-section {
    padding: 80px 0;
    background: var(--white);
}

.cta-card {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-blue) 100%);
    border-radius: 32px;
    padding: 3rem;
    text-align: center;
    box-shadow: var(--shadow-xl);
}

.cta-card h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: white;
}

.cta-card p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 2rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-primary-custom {
    background: white;
    color: var(--primary-blue);
    padding: 0.85rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.4s cubic-bezier(0.2, 0.9, 0.4, 1.1);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    border: none;
    cursor: pointer;
}

.btn-primary-custom:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    background: var(--neon-blue);
    color: white;
}

.btn-outline-custom {
    background: transparent;
    color: white;
    padding: 0.85rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.4s cubic-bezier(0.2, 0.9, 0.4, 1.1);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    border: 2px solid rgba(255, 255, 255, 0.5);
    cursor: pointer;
}

.btn-outline-custom:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-3px);
    border-color: white;
}

/* ============================================
   8. Modal Styles (Case Study Details)
   ============================================ */
.case-modal .modal-content {
    border-radius: 24px;
    border: none;
    overflow: hidden;
}

.case-modal .modal-header {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-blue) 100%);
    color: white;
    border: none;
    padding: 1.25rem 1.5rem;
}

.case-modal .modal-header .btn-close {
    filter: brightness(0) invert(1);
}

.case-modal .modal-title {
    font-weight: 700;
}

.case-study-detail {
    padding: 0.5rem 0;
}

.case-detail-image {
    width: 100%;
    border-radius: 16px;
    margin-bottom: 1.5rem;
}

.case-detail-section {
    margin-bottom: 2rem;
}

.case-detail-section h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--primary-dark);
}

.case-detail-section p {
    font-size: 0.9rem;
    color: var(--neutral-600);
    line-height: 1.7;
    margin-bottom: 1rem;
}

.case-detail-section ul {
    padding-left: 1.25rem;
    margin-bottom: 1rem;
}

.case-detail-section li {
    font-size: 0.9rem;
    color: var(--neutral-600);
    margin-bottom: 0.5rem;
}

.result-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1.5rem;
    margin: 1.5rem 0;
}

.result-stat {
    text-align: center;
    padding: 1rem;
    background: var(--neutral-100);
    border-radius: 16px;
}

.result-stat .stat-number {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-blue);
    display: block;
}

.result-stat .stat-label {
    font-size: 0.7rem;
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-tags span {
    background: rgba(26, 35, 126, 0.08);
    padding: 0.35rem 1rem;
    border-radius: 50px;
    font-size: 0.8rem;
    color: var(--primary-blue);
    font-weight: 500;
}

.modal-footer {
    border-top: 1px solid var(--neutral-200);
    padding: 1rem 1.5rem;
}

.btn-secondary {
    background: var(--neutral-200);
    color: var(--neutral-700);
    border: none;
    padding: 0.7rem 1.5rem;
    border-radius: 50px;
}

.btn-secondary:hover {
    background: var(--neutral-300);
}

/* ============================================
   9. Responsive Styles
   ============================================ */
@media (max-width: 992px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section-heading {
        font-size: 2rem;
    }
    
    .stats-row {
        gap: 1.5rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .featured-case-content h2 {
        font-size: 1.5rem;
    }
}

@media (max-width: 768px) {
    .case-hero-section {
        padding: 60px 0 40px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .stats-row {
        gap: 1rem;
        justify-content: space-between;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    .stat-label {
        font-size: 0.7rem;
    }
    
    .section-heading {
        font-size: 1.75rem;
    }
    
    .section-subheading {
        font-size: 1rem;
    }
    
    .filter-wrapper {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .filter-buttons {
        width: 100%;
        overflow-x: auto;
        flex-wrap: nowrap;
        padding-bottom: 0.5rem;
    }
    
    .filter-btn {
        white-space: nowrap;
    }
    
    .featured-case-card .row {
        flex-direction: column;
    }
    
    .featured-case-image {
        min-height: 250px;
    }
    
    .featured-case-content {
        padding: 1.5rem;
    }
    
    .case-results {
        gap: 1rem;
    }
    
    .result-number {
        font-size: 1.2rem;
    }
    
    .impact-number {
        font-size: 2rem;
    }
    
    .cta-card {
        padding: 2rem;
    }
    
    .cta-card h3 {
        font-size: 1.5rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn-primary-custom,
    .btn-outline-custom {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
    
    .result-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .stats-row {
        flex-wrap: wrap;
        gap: 1rem;
    }
    
    .stat-item {
        flex: 0 0 calc(50% - 0.5rem);
        text-align: center;
    }
    
    .stat-number {
        font-size: 1.75rem;
    }
    
    .case-meta {
        gap: 0.75rem;
    }
    
    .case-results {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .result-item {
        text-align: center;
    }
    
    .testimonial-case-card {
        padding: 1.25rem;
    }
}

/* ============================================
   10. Utility Classes
   ============================================ */
.bg-light {
    background-color: var(--neutral-100) !important;
}

.text-center {
    text-align: center;
}

.mb-0 {
    margin-bottom: 0;
}

.mt-0 {
    margin-top: 0;
}

/* Animation Overrides */
[data-aos] {
    pointer-events: auto !important;
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Print Styles */
@media print {
    .info-strip,
    .navbar,
    .filter-section,
    .cta-case-section,
    .modal,
    footer {
        display: none;
    }
    
    .case-hero-section,
    .featured-case-section,
    .cases-grid-section,
    .impact-section,
    .testimonials-case-section {
        padding: 20px 0;
        break-inside: avoid;
    }
    
    .case-card,
    .featured-case-card,
    .testimonial-case-card {
        box-shadow: none;
        border: 1px solid #ddd;
        break-inside: avoid;
    }
}