/* 作品集模态窗口样式 */
.portfolio-modal {
    position: fixed;
    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: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.portfolio-modal.active {
    display: flex;
}

.modal-content {
    background: var(--glass-bg);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 1200px;
    max-height: 90vh;
    overflow: hidden;
    box-shadow: var(--shadow-heavy);
    animation: modalSlideIn 0.3s ease-out;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 25px 30px;
    border-bottom: 1px solid var(--glass-border);
}

.modal-header h2 {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--text-primary);
}

.modal-close {
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 5px;
    border-radius: 50%;
    transition: all var(--transition-fast);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    background: var(--glass-bg);
    color: var(--text-primary);
    transform: scale(1.1);
}

/* 作品集过滤器 */
.portfolio-filters {
    display: flex;
    justify-content: center;
    gap: 15px;
    padding: 25px 30px;
    border-bottom: 1px solid var(--glass-border);
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 20px;
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-medium);
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 0.9rem;
    font-weight: 500;
}

.filter-btn:hover {
    color: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

.filter-btn.active {
    background: var(--primary-color);
    color: var(--text-white);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-medium);
}

/* 作品集网格 - 瀑布流布局 */
.portfolio-grid {
    padding: 30px;
    max-height: 60vh;
    overflow-y: auto;
    columns: 3;
    column-gap: 20px;
}

.portfolio-item {
    break-inside: avoid;
    margin-bottom: 20px;
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-medium);
    overflow: hidden;
    cursor: pointer;
    transition: all var(--transition-medium);
    box-shadow: var(--shadow-light);
    opacity: 0;
    transform: translateY(20px);
    animation: portfolioItemFadeIn 0.5s ease-out forwards;
}

.portfolio-item:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: var(--shadow-heavy);
}

.portfolio-item img {
    width: 100%;
    height: auto;
    display: block;
    transition: all var(--transition-medium);
}

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

.portfolio-item-info {
    padding: 15px;
}

.portfolio-item-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.portfolio-item-category {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* 图片查看器 */
.image-viewer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 3000;
    display: none;
    align-items: center;
    justify-content: center;
}

.image-viewer.active {
    display: flex;
}

.viewer-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.viewer-close {
    position: absolute;
    top: -50px;
    right: 0;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    width: 44px;
    height: 44px;
    color: var(--text-white);
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.viewer-close:hover {
    background: var(--primary-color);
    transform: scale(1.1);
}

.viewer-prev,
.viewer-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    color: var(--text-white);
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.viewer-prev {
    left: -70px;
}

.viewer-next {
    right: -70px;
}

.viewer-prev:hover,
.viewer-next:hover {
    background: var(--primary-color);
    transform: translateY(-50%) scale(1.1);
}

.viewer-image {
    max-width: 100%;
    max-height: 70vh;
    object-fit: contain;
    border-radius: var(--radius-medium);
    box-shadow: var(--shadow-heavy);
    animation: imageZoomIn 0.3s ease-out;
}

.viewer-thumbnails {
    display: flex;
    gap: 10px;
    margin-top: 20px;
    padding: 15px;
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-medium);
    max-width: 100%;
    overflow-x: auto;
}

.viewer-thumbnail {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: var(--radius-small);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 2px solid transparent;
}

.viewer-thumbnail:hover {
    transform: scale(1.1);
    border-color: var(--primary-color);
}

.viewer-thumbnail.active {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(0, 122, 255, 0.3);
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: 3px solid var(--glass-border);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s ease-in-out infinite;
}

/* 动画关键帧 */
@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: scale(0.9) translateY(20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

@keyframes portfolioItemFadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes imageZoomIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .portfolio-grid {
        columns: 2;
    }
    
    .viewer-prev {
        left: -60px;
    }
    
    .viewer-next {
        right: -60px;
    }
}

@media (max-width: 768px) {
    .portfolio-grid {
        columns: 1;
        padding: 20px;
    }
    
    .portfolio-filters {
        padding: 20px;
        gap: 10px;
    }
    
    .filter-btn {
        padding: 8px 16px;
        font-size: 0.85rem;
    }
    
    .modal-content {
        margin: 10px;
        max-height: 95vh;
    }
    
    .modal-header {
        padding: 20px;
    }
    
    .viewer-prev,
    .viewer-next {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }
    
    .viewer-prev {
        left: 10px;
    }
    
    .viewer-next {
        right: 10px;
    }
    
    .viewer-close {
        top: 10px;
        right: 10px;
    }
    
    .viewer-thumbnails {
        padding: 10px;
        gap: 8px;
    }
    
    .viewer-thumbnail {
        width: 50px;
        height: 50px;
    }
}