.cases-page {
    padding: 4rem 0;
}

.cases-page-content {
    margin-bottom: 4rem;
}

.cases-filters-section {
    padding: 2rem 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.cases-filters-toggle {
    display: none;
    width: 100%;
    padding: 0.875rem 1rem;
    background: #080808;
    color: #fff;
    border: none;
    border-radius: 0.5rem;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    font-family: inherit;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    transition: background-color 0.2s ease;
    margin-bottom: 1rem;
}

@media (min-width: 769px) {
    .cases-filters-toggle {
        display: none !important;
    }
    
    .cases-filters {
        display: flex !important;
    }
}

.cases-filters-toggle:hover {
    background: #1a1a1a;
}

.cases-filters-toggle:focus {
    outline: 2px solid #080808;
    outline-offset: 2px;
}

.cases-filters-toggle-text {
    flex: 1;
    text-align: left;
}

.cases-filters-toggle-icon {
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

.cases-filters-toggle[aria-expanded="true"] .cases-filters-toggle-icon {
    transform: rotate(180deg);
}

.cases-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    align-items: flex-start;
}

.cases-filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    flex: 1;
    min-width: 200px;
}

.cases-filter-label {
    font-weight: 500;
    font-size: 0.75rem;
    color: #666;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin: 0;
}

.cases-filter-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.cases-filter-btn {
    padding: 0.4rem 0.9rem;
    background: transparent;
    border: 1px solid rgba(0, 0, 0, 0.15);
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 0.75rem;
    font-weight: 500;
    color: #080808;
    line-height: 1.4;
    font-family: inherit;
    margin: 0;
}

.cases-filter-btn:hover {
    border-color: #080808;
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.08);
}

.cases-filter-btn:focus {
    outline: 2px solid #080808;
    outline-offset: 2px;
}

.cases-filter-btn.active {
    background: #080808;
    color: #fff;
    border-color: #080808;
    transform: translateY(0);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
}

.cases-filter-btn.active:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}

.cases-filter-btn.active:focus {
    outline-color: #fff;
}

.cases-grid-section {
    padding: 4rem 0;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 1.5rem;
}

.cases-grid-item {
    position: relative;
    overflow: hidden;
    border-radius: 0.5rem;
    aspect-ratio: 4 / 3;
    background-color: #f5f5f5;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.cases-grid-item.col-1 {
    grid-column: span 4;
}

.cases-grid-item.col-2 {
    grid-column: span 8;
}

.cases-grid-item.col-3 {
    grid-column: span 12;
}

.cases-card-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    transition: transform 0.4s ease;
    z-index: 0;
}

.cases-grid-item:hover .cases-card-image {
    transform: scale(1.05);
}

.cases-card-link {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    text-decoration: none;
    color: inherit;
    display: flex;
    z-index: 2;
}

.cases-card {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 2rem;
    color: #fff;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.85) 0%, transparent 30%, transparent 70%, rgba(0, 0, 0, 0.5) 100%);
    transition: background 0.3s ease;
}

.cases-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0);
    transition: background 0.3s ease;
    z-index: -1;
}

.cases-grid-item:hover .cases-card::before {
    background: rgba(0, 0, 0, 0.3);
}

.cases-grid-item:hover .cases-card {
    background: linear-gradient(to top, rgba(0, 0, 0, 0.95) 0%, rgba(0, 0, 0, 0.5) 30%, rgba(0, 0, 0, 0.5) 70%, rgba(0, 0, 0, 0.75) 100%);
}

.cases-card-header {
    align-self: flex-start;
}

.cases-card-title {
    font-size: clamp(0.75rem, 1.1vw, 1.1rem);
    font-weight: 500;
    margin: 0;
    line-height: 1.2;
    color: #fff;
}

.cases-card-description {
    margin-top: auto;
    padding-top: 1rem;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.3s ease, transform 0.3s ease;
    font-size: 0.95rem;
    line-height: 1.6;
    color: #fff;
}

.cases-grid-item:hover .cases-card-description {
    opacity: 1;
    transform: translateY(0);
}

.cases-grid-item.hidden {
    display: none;
}

.cases-empty-state {
    text-align: center;
    padding: 4rem 2rem;
}

.cases-empty-message {
    font-size: 1.125rem;
    color: #666;
    margin: 0;
}

@media (max-width: 1024px) {
    .cases-grid-item.col-1,
    .cases-grid-item.col-2 {
        grid-column: span 6;
    }
    
    .cases-filters {
        gap: 1.5rem;
    }
}

@media (max-width: 768px) {
    .cases-page {
        padding: 2rem 0;
    }
    
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .cases-grid-item.col-1,
    .cases-grid-item.col-2,
    .cases-grid-item.col-3 {
        grid-column: span 1;
    }
    
    .cases-filters-toggle {
        display: flex;
    }
    
    .cases-filters {
        display: none;
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .cases-filters[aria-hidden="false"],
    .cases-filters:not([aria-hidden]) {
        display: flex;
    }
    
    .cases-filter-group {
        min-width: 100%;
    }
    
    .cases-grid-section {
        padding: 2rem 0;
    }
}