/* ===========================
   Case Study Specific Styles
   =========================== */

/* Header Section */
.case-study-header {
    padding: var(--spacing-xxl) 0 var(--spacing-xl);
    border-bottom: 1px solid var(--border-subtle);
}

.case-study-title {
    font-size: clamp(3rem, 7vw, 5rem);
    font-weight: 400;
    letter-spacing: -0.02em;
    margin-bottom: var(--spacing-md);
    color: var(--text-charcoal);
}

.case-study-summary {
    font-size: clamp(1.25rem, 2.5vw, 1.5rem);
    line-height: 1.6;
    color: var(--text-muted);
    max-width: 900px;
    margin-bottom: var(--spacing-lg);
}

.case-study-meta {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    max-width: 900px;
    margin-top: var(--spacing-lg);
}

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

.meta-label {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--accent-blue);
}

.meta-value {
    font-size: 1rem;
    color: var(--text-charcoal);
    line-height: 1.5;
}

/* Main Content */
.case-study-content {
    padding: var(--spacing-xxl) 0;
}

.content-section {
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
}

.section-heading {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 500;
    letter-spacing: -0.01em;
    margin-bottom: var(--spacing-sm);
    color: var(--text-charcoal);
}

.section-subheading {
    font-size: clamp(1.25rem, 2.5vw, 1.5rem);
    font-weight: 400;
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
    line-height: 1.4;
}

.insight-heading {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--text-charcoal);
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
}

.content-section p {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
}

.content-list {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-muted);
    margin: var(--spacing-md) 0 var(--spacing-md) var(--spacing-md);
    list-style-position: outside;
}

.content-list li {
    margin-bottom: var(--spacing-sm);
    padding-left: var(--spacing-xs);
}

.content-list li::marker {
    color: var(--accent-blue);
}

/* Image Blocks */
.image-block {
    max-width: 1000px;
    margin: var(--spacing-xl) auto;
}

/* ===========================
   Problem Grid
   =========================== */

.problem-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin: var(--spacing-xl) auto;
    max-width: 1000px;
}

.problem-item {
    padding: var(--spacing-md);
    background-color: #ffffff;
    border: 1.5px solid #B8B4AF;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.problem-item:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
}

.problem-icon {
    color: var(--accent-blue);
    display: flex;
    align-items: center;
}

.problem-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-charcoal);
    line-height: 1.3;
}

.problem-description {
    font-size: 0.9375rem;
    color: var(--text-muted);
    line-height: 1.7;
}

@media (max-width: 768px) {
    .problem-grid {
        grid-template-columns: 1fr;
    }
}

.case-study-image {
    width: 100%;
    display: block;
    border-radius: 8px;
    border: 1px solid var(--border-subtle);
    margin-bottom: var(--spacing-sm);
}

.case-study-video {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 8px;
    border: 1px solid var(--border-subtle);
    margin-bottom: var(--spacing-sm);
}

.image-placeholder {
    width: 100%;
    aspect-ratio: 16 / 10;
    background: linear-gradient(135deg, #f0f0f0 0%, #e5e5e5 100%);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-subtle);
    margin-bottom: var(--spacing-sm);
}

.placeholder-text {
    font-size: 1rem;
    color: var(--text-muted);
    font-style: italic;
}

.image-caption {
    font-size: 0.9375rem;
    color: var(--text-muted);
    text-align: center;
    font-style: italic;
    line-height: 1.6;
    max-width: 700px;
    margin: 0 auto;
}

/* Horizontal Media Row */
.media-row {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.media-row .case-study-image,
.media-row .case-study-video {
    flex: 1;
    width: 0;
}

.media-col {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.media-col-label {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-charcoal);
    text-align: center;
    margin-bottom: var(--spacing-sm);
}

.media-col .case-study-image {
    flex: 1;
    width: 100%;
    object-fit: contain;
    min-height: 0;
}

@media (max-width: 768px) {
    .media-row {
        flex-direction: column;
    }

    .media-row .case-study-image,
    .media-row .case-study-video {
        width: 100%;
    }

    .media-col {
        width: 100%;
    }

    .media-col .case-study-image {
        height: auto;
    }
}

/* Continue Exploring Section */
.continue-exploring {
    padding: var(--spacing-xxl) 0;
    background-color: white;
    border-top: 1px solid var(--border-subtle);
}

.continue-exploring .section-title {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.continue-exploring .projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
    max-width: 900px;
    margin: 0 auto;
}

.project-link {
    display: inline-block;
    margin-top: var(--spacing-sm);
    color: var(--accent-blue);
    text-decoration: none;
    font-weight: 500;
    font-size: 1rem;
    transition: var(--transition-smooth);
}

.project-link:hover {
    transform: translateX(4px);
    color: var(--text-charcoal);
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .case-study-header {
        padding: var(--spacing-xl) 0 var(--spacing-lg);
    }

    .case-study-content {
        padding: var(--spacing-lg) 0;
    }

    .content-section {
        margin-bottom: var(--spacing-lg);
    }

    .image-block {
        margin: var(--spacing-lg) auto;
    }

    .case-study-meta {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .continue-exploring .projects-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .case-study-nav {
        padding: var(--spacing-sm) 0;
    }

    .content-section p,
    .content-list {
        font-size: 1rem;
    }

    .image-placeholder {
        aspect-ratio: 4 / 3;
    }
}