/* ============================================
   Case Study Modal - Detaylı Proje Görüntüleme
   ============================================ */

.case-study-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s cubic-bezier(0.23, 1, 0.32, 1),
                visibility 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    padding: var(--spacing-xl);
    overflow-y: auto;
}

.case-study-modal.active {
    opacity: 1;
    visibility: visible;
}

.case-study-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: -1;
}

.case-study-modal-content {
    position: relative;
    width: 100%;
    max-width: 1200px;
    max-height: 90vh;
    background: var(--bg-surface);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    overflow: hidden;
    transform: scale(0.9) translateY(20px);
    transition: transform 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    display: flex;
    flex-direction: column;
    backdrop-filter: blur(40px);
    -webkit-backdrop-filter: blur(40px);
}

.case-study-modal.active .case-study-modal-content {
    transform: scale(1) translateY(0);
}

.case-study-modal-close {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 44px;
    height: 44px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.case-study-modal-close:hover {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    transform: rotate(90deg) scale(1.1);
    box-shadow: var(--shadow-glow);
}

.case-study-modal-close svg {
    width: 20px;
    height: 20px;
    stroke: var(--text-primary);
}

.case-study-header {
    padding: var(--spacing-4xl) var(--spacing-4xl) var(--spacing-2xl);
    background: var(--gradient-secondary);
    border-bottom: 1px solid var(--glass-border);
    position: relative;
    overflow: hidden;
}

.case-study-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-mesh-gradient);
    opacity: 0.5;
    z-index: 0;
}

.case-study-header-content {
    position: relative;
    z-index: 1;
}

.case-study-badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-lg);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--accent-primary);
    margin-bottom: var(--spacing-lg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.case-study-title {
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: var(--font-weight-extrabold);
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    line-height: 1.2;
}

.case-study-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
}

.case-study-meta {
    display: flex;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
}

.case-study-meta-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.case-study-meta-item svg {
    width: 18px;
    height: 18px;
    stroke: var(--accent-primary);
}

.case-study-body {
    padding: var(--spacing-4xl);
    overflow-y: auto;
    flex: 1;
}

.case-study-section {
    margin-bottom: var(--spacing-4xl);
}

.case-study-section-title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.case-study-section-title::before {
    content: '';
    width: 4px;
    height: 24px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.case-study-description {
    font-size: var(--font-size-base);
    line-height: var(--line-height-relaxed);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.case-study-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.case-study-feature {
    padding: var(--spacing-lg);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition: all 0.3s ease;
}

.case-study-feature:hover {
    transform: translateY(-4px);
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-glow);
}

.case-study-feature-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.case-study-feature-icon svg {
    width: 20px;
    height: 20px;
    stroke: var(--text-primary);
}

.case-study-feature-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.case-study-feature-desc {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: var(--line-height-relaxed);
}

.case-study-tech {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

.case-study-tech-tag {
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    color: var(--accent-primary);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition: all 0.3s ease;
}

.case-study-tech-tag:hover {
    background: var(--accent-primary);
    color: var(--text-primary);
    transform: scale(1.05);
}

.case-study-footer {
    padding: var(--spacing-2xl) var(--spacing-4xl);
    background: var(--bg-secondary);
    border-top: 1px solid var(--glass-border);
    display: flex;
    gap: var(--spacing-lg);
    justify-content: flex-end;
    flex-wrap: wrap;
}

.case-study-btn {
    padding: var(--spacing-md) var(--spacing-3xl);
    border-radius: var(--radius-full);
    font-weight: var(--font-weight-semibold);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
    cursor: pointer;
    border: none;
}

.case-study-btn-primary {
    background: var(--gradient-primary);
    color: var(--text-primary);
    box-shadow: var(--shadow-glow);
}

.case-study-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow), var(--shadow-deep);
}

.case-study-btn-secondary {
    background: var(--glass-bg);
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.case-study-btn-secondary:hover {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    transform: translateY(-2px);
}

/* Light Mode */
[data-theme="light"] .case-study-modal-overlay {
    background: rgba(0, 0, 0, 0.6);
}

[data-theme="light"] .case-study-modal-content {
    background: var(--bg-surface);
}

/* Responsive */
@media (max-width: 768px) {
    .case-study-modal {
        padding: var(--spacing-md);
    }
    
    .case-study-header,
    .case-study-body,
    .case-study-footer {
        padding: var(--spacing-2xl);
    }
    
    .case-study-features {
        grid-template-columns: 1fr;
    }
    
    .case-study-meta {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .case-study-footer {
        flex-direction: column;
    }
    
    .case-study-btn {
        width: 100%;
        justify-content: center;
    }
}