/* ----- Cases Hero Section ----- */
.tantrung-cases-hero {
    position: relative;
    height: 50vh;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    margin-top: 80px;
}

.tantrung-cases-hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -1;
    filter: brightness(0.6);
}

.tantrung-cases-hero-content {
    text-align: center;
    color: var(--tantrung-white);
    padding: 0 var(--tantrung-spacing-lg);
    max-width: 900px;
    z-index: 1;
    animation: fadeIn 1s ease-out;
}

.tantrung-cases-hero-title {
    font-size: 3rem;
    font-weight: 900;
    margin-bottom: var(--tantrung-spacing-md);
    line-height: 1.1;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    color: var(--tantrung-white);
}

.tantrung-cases-hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: var(--tantrung-spacing-lg);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    text-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

/* ----- Cases Section ----- */
.tantrung-cases-section {
    background-color: var(--tantrung-white);
    position: relative;
}

.tantrung-cases-filter {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--tantrung-spacing-md);
    margin-bottom: var(--tantrung-spacing-xl);
}

.tantrung-filter-button {
    background: transparent;
    border: none;
    padding: var(--tantrung-spacing-sm) var(--tantrung-spacing-lg);
    font-family: var(--tantrung-font-primary);
    font-weight: 500;
    font-size: 1rem;
    color: var(--tantrung-gray-700);
    cursor: pointer;
    border-radius: var(--tantrung-radius-md);
    transition: all var(--tantrung-transition-fast);
}

.tantrung-filter-button:hover {
    color: var(--tantrung-primary);
    background-color: var(--tantrung-gray-100);
}

.tantrung-filter-button.tantrung-active {
    color: var(--tantrung-white);
    background-color: var(--tantrung-primary);
}

.tantrung-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--tantrung-spacing-xl);
    margin-bottom: var(--tantrung-spacing-2xl);
}

.tantrung-case-item {
    position: relative;
    border-radius: var(--tantrung-radius-lg);
    overflow: hidden;
    box-shadow: var(--tantrung-shadow-md);
    height: 300px;
    transition: transform var(--tantrung-transition-normal), box-shadow var(--tantrung-transition-normal);
}

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

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

.tantrung-case-item:hover .tantrung-case-img {
    transform: scale(1.05);
}

.tantrung-case-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    padding: var(--tantrung-spacing-lg);
    transform: translateY(0);
    transition: transform var(--tantrung-transition-normal);
}

.tantrung-case-content {
    color: var(--tantrung-white);
}

.tantrung-case-category {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--tantrung-primary-light);
    margin-bottom: var(--tantrung-spacing-xs);
    background-color: rgba(255, 255, 255, 0.1);
    padding: 2px 8px;
    border-radius: var(--tantrung-radius-full);
}

.tantrung-case-title {
    font-size: 1.5rem;
    margin-bottom: var(--tantrung-spacing-sm);
    font-weight: 700;
}

.tantrung-case-link {
    display: inline-flex;
    align-items: center;
    color: var(--tantrung-white);
    font-weight: 600;
    opacity: 0.9;
    transition: opacity var(--tantrung-transition-fast);
}

.tantrung-case-link:hover {
    opacity: 1;
    color: var(--tantrung-white);
}

.tantrung-case-link .tantrung-arrow {
    margin-left: var(--tantrung-spacing-xs);
}

.tantrung-load-more-container {
    text-align: center;
    margin-top: var(--tantrung-spacing-xl);
}

/* ----- Testimonials Section ----- */
.tantrung-cases-testimonials-section {
    background-color: var(--tantrung-gray-100);
    position: relative;
}

.tantrung-cases-testimonials-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(var(--tantrung-gray-300) 1px, transparent 1px);
    background-size: 30px 30px;
    opacity: 0.3;
    z-index: 0;
}

.tantrung-cases-testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--tantrung-spacing-xl);
    margin-bottom: var(--tantrung-spacing-2xl);
    position: relative;
    z-index: 1;
}

.tantrung-cases-testimonial {
    background-color: var(--tantrung-white);
    border-radius: var(--tantrung-radius-lg);
    padding: var(--tantrung-spacing-xl);
    box-shadow: var(--tantrung-shadow-md);
    text-align: center;
    transition: transform var(--tantrung-transition-normal);
    display: flex;
    flex-direction: column;
    align-items: center;
}

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

.tantrung-cases-author-image {
    width: 120px;
    height: 120px;
    border-radius: var(--tantrung-radius-full);
    object-fit: cover;
    border: 4px solid var(--tantrung-white);
    box-shadow: var(--tantrung-shadow-md);
    margin-top: -60px;
    margin-bottom: var(--tantrung-spacing-md);
    background-color: var(--tantrung-white);
}

.tantrung-cases-testimonial-content {
    font-style: italic;
    color: var(--tantrung-gray-700);
    margin-bottom: var(--tantrung-spacing-md);
    position: relative;
}

.tantrung-cases-testimonial-content::before,
.tantrung-cases-testimonial-content::after {
    content: '"';
    font-family: Georgia, serif;
    font-size: 3rem;
    color: var(--tantrung-primary-light);
    opacity: 0.2;
    position: absolute;
}

.tantrung-cases-testimonial-content::before {
    top: -20px;
    left: -10px;
}

.tantrung-cases-testimonial-content::after {
    content: '"';
    bottom: -40px;
    right: -10px;
}

.tantrung-cases-author-info {
    margin-top: var(--tantrung-spacing-md);
}

.tantrung-cases-author-name {
    font-weight: 700;
    color: var(--tantrung-dark);
    margin-bottom: 4px;
}

.tantrung-cases-author-role {
    font-size: 0.875rem;
    color: var(--tantrung-gray-600);
}

/* Client Logos */
.tantrung-client-logos {
    margin-top: var(--tantrung-spacing-2xl);
    text-align: center;
    position: relative;
    z-index: 1;
}

.tantrung-client-logos-title {
    font-size: 1.5rem;
    margin-bottom: var(--tantrung-spacing-xl);
    color: var(--tantrung-gray-800);
}

.tantrung-logo-grid {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--tantrung-spacing-2xl);
    align-items: center;
}

.tantrung-client-logo {
    height: 80px;
    object-fit: contain;
    opacity: 0.7;
    transition: opacity var(--tantrung-transition-normal), transform var(--tantrung-transition-normal);
    filter: grayscale(1);
}

.tantrung-client-logo:hover {
    opacity: 1;
    transform: scale(1.05);
    filter: grayscale(0);
}

/* ----- CTA Section ----- */
.tantrung-cases-cta-section {
    background: linear-gradient(135deg, var(--tantrung-primary-dark), var(--tantrung-secondary));
    color: var(--tantrung-white);
    position: relative;
    overflow: hidden;
}

.tantrung-cases-cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0) 20%),
        radial-gradient(circle at 75% 60%, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0) 20%);
    z-index: 0;
}

.tantrung-cases-cta-section .tantrung-container {
    display: flex;
    align-items: center;
    gap: var(--tantrung-spacing-2xl);
    position: relative;
    z-index: 1;
}

.tantrung-cases-cta-content {
    flex: 1;
}

.tantrung-cases-cta-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: var(--tantrung-spacing-md);
    color: var(--tantrung-white);
}

.tantrung-cases-cta-text {
    font-size: 1.125rem;
    margin-bottom: var(--tantrung-spacing-lg);
    opacity: 0.9;
}

.tantrung-cases-cta-buttons {
    display: flex;
    gap: var(--tantrung-spacing-md);
}

.tantrung-cases-cta-image {
    flex: 1;
    border-radius: var(--tantrung-radius-lg);
    overflow: hidden;
    box-shadow: var(--tantrung-shadow-xl);
    max-width: 600px;
}

/* ----- Media Queries ----- */
@media (max-width: 1200px) {
    .tantrung-cases-testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 992px) {
    .tantrung-cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .tantrung-cases-cta-section .tantrung-container {
        flex-direction: column;
    }
    
    .tantrung-cases-cta-image {
        width: 100%;
        max-width: 100%;
        margin-top: var(--tantrung-spacing-xl);
    }
}

@media (max-width: 768px) {
    .tantrung-cases-testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .tantrung-cases-grid {
        grid-template-columns: 1fr;
    }
    
    .tantrung-logo-grid {
        gap: var(--tantrung-spacing-lg);
    }
    
    .tantrung-client-logo {
        height: 60px;
    }
    
    .tantrung-cases-hero-title {
        font-size: 2.5rem;
    }
}

@media (max-width: 576px) {
    .tantrung-cases-cta-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .tantrung-cases-cta-buttons .tantrung-button {
        width: 100%;
        text-align: center;
    }
    
    .tantrung-client-logo {
        height: 50px;
    }
}