.page-intro {
    background: #f8fafc;
    text-align: center;
}

.page-intro h1 {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.page-intro p {
    font-size: 1.125rem;
    color: #4b5563;
    max-width: 800px;
    margin: 0 auto;
}

.case-filters {
    background: #fff;
}

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

.filter-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    border: 2px solid #e5e7eb;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 600;
    color: #4b5563;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.filter-btn:hover {
    background: linear-gradient(135deg, #e2e8f0 0%, #cbd5e1 100%);
    border-color: #2563eb;
    color: #2563eb;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(37, 99, 235, 0.2);
}

.filter-btn.active {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    color: #fff;
    border-color: #1d4ed8;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.4);
    transform: translateY(-2px);
}

.case-list {
    background: #f8fafc;
}

.cases-grid {
    margin-top: var(--spacing-xl);
}

.case-card {
    background: #fff;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

.case-card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transform: translateY(-4px);
}

.case-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

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

.case-category {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: #e0e7ff;
    color: #2563eb;
    border-radius: var(--border-radius);
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.case-content h3 {
    color: #1a1a1a;
    margin-bottom: var(--spacing-md);
}

.case-problem,
.case-approach,
.case-result {
    margin-bottom: var(--spacing-md);
    color: #4b5563;
    line-height: 1.6;
}

.case-problem strong,
.case-approach strong,
.case-result strong {
    color: #1a1a1a;
}

.testimonials-slider {
    background: #fff;
}

.testimonials-slider h2 {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.slider {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.slides {
    position: relative;
    min-height: 200px;
}

.slide {
    display: none;
    padding: var(--spacing-xl);
    background: #f8fafc;
    border-radius: var(--border-radius-lg);
    text-align: center;
}

.slide.active {
    display: block;
}

.testimonial-text {
    font-size: 1.125rem;
    color: #4b5563;
    font-style: italic;
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.testimonial-author {
    color: #6b7280;
    font-size: 0.875rem;
    margin: 0;
}

.slider-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.slider-prev,
.slider-next {
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    color: #fff;
    border: 2px solid #1d4ed8;
    cursor: pointer;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
}

.slider-prev:hover,
.slider-next:hover {
    background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
    transform: scale(1.15) rotate(5deg);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.5);
}

.slider-prev:active,
.slider-next:active {
    transform: scale(1.05);
}

.slider-indicators {
    display: flex;
    gap: var(--spacing-xs);
    align-items: center;
}

.slider-indicator {
    width: 0.875rem;
    height: 0.875rem;
    border-radius: 50%;
    background: #d1d5db;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.slider-indicator:hover {
    background: #9ca3af;
    transform: scale(1.2);
}

.slider-indicator.active {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    border-color: #1d4ed8;
    width: 1.125rem;
    height: 1.125rem;
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.4);
}

.cta {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    color: #fff;
}

.cta-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta-content h2 {
    color: #fff;
    margin-bottom: var(--spacing-sm);
}

.cta-content p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-lg);
    font-size: 1.125rem;
}

.cta-content .btn {
    background: #fff;
    color: #2563eb;
}

.cta-content .btn:hover {
    background: #f8fafc;
    transform: translateY(-2px);
}


@media (max-width: 768px) {
    .page-intro h1 {
        font-size: 2rem;
    }
    
    .case-card img {
        height: 150px;
    }
    
    .slide {
        padding: var(--spacing-lg);
    }
}