/* Case Studies Page Specific Styles */

/* Page Header */
.page-header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    text-align: center;
    padding: 120px 0 80px;
    margin-top: 70px;
}

.page-header h1 {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    color: var(--white);
}

.page-header p {
    font-size: var(--font-size-xl);
    color: rgba(255, 255, 255, 0.9);
    margin: 0;
}

/* Filter Section */
.filter-section {
    padding: var(--spacing-2xl) 0;
    background-color: var(--background-light);
    border-bottom: 1px solid #e5e7eb;
}

.filter-tabs {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.filter-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--white);
    color: var(--text-light);
    border: 2px solid #e5e7eb;
    border-radius: 25px;
    font-size: var(--font-size-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

/* Case Studies Grid */
.case-studies-grid-section {
    padding: var(--spacing-4xl) 0;
}

.case-studies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-2xl);
}

.case-study-card {
    background-color: var(--white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    opacity: 1;
    transform: scale(1);
}

.case-study-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.case-study-card.hidden {
    opacity: 0;
    transform: scale(0.8);
    pointer-events: none;
}

.case-image {
    position: relative;
    height: 250px;
    overflow: hidden;
}

.case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.case-study-card:hover .case-image img {
    transform: scale(1.1);
}

.case-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(30, 58, 138, 0.7), rgba(59, 130, 246, 0.5));
    display: flex;
    align-items: flex-start;
    justify-content: flex-end;
    padding: var(--spacing-lg);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.case-study-card:hover .case-overlay {
    opacity: 1;
}

.case-tags {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.tag {
    background-color: rgba(255, 255, 255, 0.9);
    color: var(--primary-color);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 15px;
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-align: center;
    backdrop-filter: blur(10px);
}

.case-content {
    padding: var(--spacing-2xl);
}

.case-content h3 {
    color: var(--text-dark);
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-size-xl);
}

.case-client {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.case-description {
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.case-results {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-lg);
    background-color: var(--background-light);
    border-radius: 12px;
}

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

.result-number {
    display: block;
    font-size: var(--font-size-xl);
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.result-label {
    font-size: var(--font-size-xs);
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
}

.case-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: all var(--transition-fast);
}

.case-link:hover {
    color: var(--accent-color);
    transform: translateX(4px);
}

/* Testimonials Section */
.testimonials-section {
    background-color: var(--background-light);
    padding: var(--spacing-4xl) 0;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-3xl);
}

.testimonial-card {
    background-color: var(--white);
    padding: var(--spacing-2xl);
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    position: relative;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: -10px;
    left: var(--spacing-xl);
    font-size: 4rem;
    color: var(--accent-color);
    font-family: Georgia, serif;
    line-height: 1;
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

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

.testimonial-content p {
    color: var(--text-light);
    font-size: var(--font-size-lg);
    line-height: 1.7;
    font-style: italic;
    margin: 0;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.testimonial-author img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
}

.author-info h4 {
    color: var(--text-dark);
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-size-base);
}

.author-info p {
    color: var(--text-light);
    font-size: var(--font-size-sm);
    margin: 0;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    text-align: center;
    padding: var(--spacing-4xl) 0;
}

.cta-content h2 {
    color: var(--white);
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-4xl);
}

.cta-content p {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xl);
    color: rgba(255, 255, 255, 0.9);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    flex-wrap: wrap;
}

.btn-secondary {
    background-color: transparent;
    color: var(--white);
    border-color: var(--white);
}

.btn-secondary:hover {
    background-color: var(--white);
    color: var(--primary-color);
}

/* Animation for filtering */
@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.case-study-card.show {
    animation: fadeInScale 0.5s ease-out;
}

/* Responsive Design */
@media (max-width: 768px) {
    .page-header {
        padding: 100px 0 60px;
    }
    
    .page-header h1 {
        font-size: var(--font-size-4xl);
    }
    
    .filter-tabs {
        gap: var(--spacing-sm);
    }
    
    .filter-btn {
        padding: var(--spacing-xs) var(--spacing-md);
        font-size: var(--font-size-xs);
    }
    
    .case-studies-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .case-content {
        padding: var(--spacing-lg);
    }
    
    .case-results {
        grid-template-columns: repeat(2, 1fr);
        padding: var(--spacing-md);
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonial-card {
        padding: var(--spacing-lg);
    }
    
    .cta-content h2 {
        font-size: var(--font-size-3xl);
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .page-header h1 {
        font-size: var(--font-size-3xl);
    }
    
    .case-studies-grid {
        grid-template-columns: 1fr;
    }
    
    .case-image {
        height: 200px;
    }
    
    .case-content {
        padding: var(--spacing-md);
    }
    
    .case-results {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    .result-number {
        font-size: var(--font-size-lg);
    }
    
    .testimonial-author {
        flex-direction: column;
        text-align: center;
    }
}