.acs-portfolio-wrapper {
    margin-bottom: 40px;
    width: 100%;
}

.acs-portfolio-filter {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-bottom: 20px;
}

.acs-filter-btn {
    background: #f5f5f5;
    border: none;
    padding: 8px 16px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s ease;
    color: #333;
}

.acs-filter-btn:hover,
.acs-filter-btn.active {
    background: #333;
    color: #fff;
}

.acs-portfolio-sort {
    text-align: right;
    margin-bottom: 15px;
}

.acs-sort-select {
    padding: 5px 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
}

.acs-portfolio-grid {
    display: grid;
    gap: 20px;
    grid-template-columns: repeat(3, 1fr);
}

/* Pro機能: 2カラム */
.acs-col-2 .acs-portfolio-grid {
    grid-template-columns: repeat(2, 1fr) !important;
}

/* Pro機能: 4カラム */
.acs-col-4 .acs-portfolio-grid {
    grid-template-columns: repeat(4, 1fr) !important;
}

/* デフォルト: 3カラム（無料版も使用可能） */
.acs-col-3 .acs-portfolio-grid {
    grid-template-columns: repeat(3, 1fr) !important;
}

@media (max-width: 768px) {
    .acs-portfolio-grid,
    .acs-col-2 .acs-portfolio-grid,
    .acs-col-4 .acs-portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .acs-portfolio-grid,
    .acs-col-2 .acs-portfolio-grid,
    .acs-col-4 .acs-portfolio-grid {
        grid-template-columns: 1fr;
    }
}

.acs-portfolio-item {
    position: relative;
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    transition: transform 0.3s ease;
}

.acs-portfolio-item:hover {
    transform: translateY(-5px);
}

.acs-portfolio-thumb {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/9;
}

.acs-portfolio-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.acs-portfolio-item:hover .acs-portfolio-thumb img {
    transform: scale(1.1);
}

.acs-portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.acs-portfolio-item:hover .acs-portfolio-overlay {
    opacity: 1;
}

.acs-view-btn {
    color: #fff;
    text-decoration: none;
    border: 1px solid #fff;
    padding: 8px 20px;
    border-radius: 4px;
    font-size: 14px;
}

.acs-view-btn:hover {
    background: #fff;
    color: #000;
}

.acs-portfolio-content {
    padding: 15px;
}

.acs-portfolio-title {
    margin: 0 0 5px;
    font-size: 18px;
    font-weight: bold;
}

.acs-portfolio-cats {
    font-size: 12px;
    color: #888;
    margin-bottom: 10px;
}

/* Pro機能: リストレイアウト */
.acs-layout-list .acs-portfolio-grid {
    display: flex !important;
    flex-direction: column !important;
    gap: 15px !important;
    grid-template-columns: unset !important;
}

.acs-layout-list .acs-portfolio-item {
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    padding: 10px !important;
    box-shadow: 0 1px 5px rgba(0,0,0,0.1) !important;
}

.acs-layout-list .acs-portfolio-thumb {
    width: 150px !important;
    min-width: 150px !important;
    flex-shrink: 0 !important;
    margin-right: 20px !important;
    border-radius: 4px !important;
    aspect-ratio: 16/9 !important;
}

.acs-layout-list .acs-portfolio-content {
    flex-grow: 1 !important;
    padding: 0 !important;
}

.acs-layout-list .acs-portfolio-overlay {
    display: none !important;
}

.acs-layout-list .acs-portfolio-title {
    font-size: 16px !important;
    margin-bottom: 8px !important;
}

@media (max-width: 480px) {
    .acs-layout-list .acs-portfolio-item {
        flex-direction: column;
        align-items: flex-start;
    }
    .acs-layout-list .acs-portfolio-thumb {
        width: 100%;
        margin-right: 0;
        margin-bottom: 10px;
    }
}