/* assets/css/creative_center.css */
.creative-header {
    text-align: center;
    margin-bottom: 3rem;
    padding: 2rem 0;
}

.creative-header h1 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
    font-size: 2.5rem;
    font-weight: 700;
}

.creative-header p {
    color: #666;
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
}

.login-prompt {
    background: linear-gradient(135deg, #e8f5e8, #d4edda);
    padding: 1.5rem;
    border-radius: 10px;
    border-left: 4px solid #28a745;
    display: inline-block;
    max-width: 400px;
}

.login-prompt p {
    color: #155724;
    margin-bottom: 1rem;
    font-weight: 500;
}

.login-prompt .btn {
    margin-top: 0.5rem;
}

/* 筛选区域 */
.filters {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    flex-wrap: wrap;
    align-items: center;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.filter-group label {
    font-weight: 600;
    color: #333;
    white-space: nowrap;
    font-size: 0.95rem;
}

.filter-group select {
    padding: 0.625rem 1rem;
    border: 2px solid #e1e5ee;
    border-radius: 6px;
    background: white;
    min-width: 140px;
    font-size: 0.95rem;
    transition: border-color 0.3s;
    cursor: pointer;
}

.filter-group select:focus {
    border-color: #6a11cb;
    outline: none;
    box-shadow: 0 0 0 3px rgba(106, 17, 203, 0.1);
}

/* 创意内容网格 */
.creations-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.creation-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    position: relative;
}

.creation-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.15);
}

.creation-media {
    position: relative;
    background: #f8f9fa;
    overflow: hidden;
}

.creation-media::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, transparent 70%, rgba(0,0,0,0.3));
    z-index: 1;
    opacity: 0;
    transition: opacity 0.3s;
}

.creation-card:hover .creation-media::before {
    opacity: 1;
}

.creation-media video,
.creation-media img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    display: block;
    transition: transform 0.3s;
}

.creation-card:hover .creation-media video,
.creation-card:hover .creation-media img {
    transform: scale(1.05);
}

.creation-stats {
    position: absolute;
    top: 12px;
    right: 12px;
    background: rgba(0,0,0,0.85);
    color: white;
    padding: 0.5rem 0.875rem;
    border-radius: 20px;
    font-size: 0.8rem;
    display: flex;
    gap: 0.75rem;
    z-index: 2;
    backdrop-filter: blur(10px);
}

.creation-stats .likes,
.creation-stats .views {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    font-weight: 500;
}

.creation-info {
    padding: 1.5rem;
    position: relative;
}

.creation-info .prompt {
    font-size: 0.95rem;
    margin-bottom: 0.75rem;
    line-height: 1.5;
    color: #2c3e50;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 4.5em;
    font-weight: 500;
}

.creation-info .author {
    font-size: 0.85rem;
    color: #666;
    margin-bottom: 1.25rem;
    font-weight: 500;
}

.creation-info .author::before {
    content: "by ";
    color: #999;
}

.creation-actions {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.btn-like {
    background: linear-gradient(135deg, #e74c3c, #c0392b);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 600;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.375rem;
    min-width: 80px;
    justify-content: center;
}

.btn-like:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(231, 76, 60, 0.3);
    background: linear-gradient(135deg, #c0392b, #a93226);
}

.btn-like:disabled {
    background: #bdc3c7;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn-like::before {
    content: "❤️";
    font-size: 0.9em;
}

.creation-actions .btn {
    flex: 1;
    min-width: 100px;
    text-align: center;
    font-size: 0.85rem;
    padding: 0.5rem 0.75rem;
}

/* 空状态和错误状态 */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: #666;
    grid-column: 1 / -1;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.empty-state p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    color: #2c3e50;
}

.empty-state .btn {
    margin-top: 0.5rem;
}

.error-message {
    text-align: center;
    padding: 3rem 2rem;
    color: #e74c3c;
    grid-column: 1 / -1;
    background: #fdf2f2;
    border-radius: 12px;
    border: 1px solid #f8d7da;
    font-weight: 500;
}

/* 加载更多 */
.load-more {
    text-align: center;
    margin: 3rem 0;
}

.load-more .btn {
    padding: 0.875rem 2.5rem;
    font-size: 1rem;
    font-weight: 600;
    border-width: 2px;
}

.load-more .btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.load-more .btn:disabled:hover {
    background: transparent;
    color: #6a11cb;
    transform: none;
    box-shadow: none;
}

/* 特殊状态样式 */
.creation-card.featured {
    border: 2px solid #ffd700;
    box-shadow: 0 4px 25px rgba(255, 215, 0, 0.3);
}

.creation-card.featured::before {
    content: "精选";
    position: absolute;
    top: 12px;
    left: 12px;
    background: linear-gradient(135deg, #ffd700, #ffed4e);
    color: #856404;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    z-index: 3;
}

.creation-card.new::after {
    content: "新";
    position: absolute;
    top: 12px;
    left: 12px;
    background: linear-gradient(135deg, #3498db, #2980b9);
    color: white;
    padding: 0.25rem 0.625rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    z-index: 3;
}

/* 视频播放器自定义样式 */
.creation-media video {
    background: #1a1a1a;
}

.creation-media video::-webkit-media-controls-panel {
    background: linear-gradient(to top, rgba(0,0,0,0.7), transparent);
}

.creation-media video::-webkit-media-controls-play-button,
.creation-media video::-webkit-media-controls-volume-slider,
.creation-media video::-webkit-media-controls-mute-button {
    filter: invert(1);
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.creation-card {
    animation: fadeInUp 0.6s ease-out;
}

.creation-card:nth-child(odd) {
    animation-delay: 0.1s;
}

.creation-card:nth-child(even) {
    animation-delay: 0.2s;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .creations-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
        gap: 1.5rem;
    }
}

@media (max-width: 768px) {
    .creative-header {
        margin-bottom: 2rem;
        padding: 1.5rem 0;
    }
    
    .creative-header h1 {
        font-size: 2rem;
    }
    
    .filters {
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
        padding: 1.25rem;
    }
    
    .filter-group {
        justify-content: space-between;
    }
    
    .filter-group select {
        min-width: 120px;
        flex: 1;
        max-width: 200px;
    }
    
    .creations-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: 1.25rem;
    }
    
    .creation-media video,
    .creation-media img {
        height: 200px;
    }
    
    .creation-info {
        padding: 1.25rem;
    }
    
    .creation-actions {
        flex-direction: column;
    }
    
    .creation-actions .btn {
        min-width: auto;
    }
    
    .btn-like {
        min-width: auto;
        order: -1;
    }
    
    .login-prompt {
        padding: 1.25rem;
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    .creations-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .creation-media video,
    .creation-media img {
        height: 180px;
    }
    
    .creation-info {
        padding: 1rem;
    }
    
    .creation-info .prompt {
        -webkit-line-clamp: 2;
        min-height: 3em;
    }
    
    .creation-stats {
        top: 8px;
        right: 8px;
        padding: 0.375rem 0.75rem;
        font-size: 0.75rem;
    }
    
    .filters {
        padding: 1rem;
    }
    
    .filter-group {
        flex-direction: column;
        align-items: stretch;
        gap: 0.5rem;
    }
    
    .filter-group label {
        text-align: center;
        font-size: 0.9rem;
    }
    
    .filter-group select {
        min-width: auto;
        max-width: none;
    }
    
    .creative-header h1 {
        font-size: 1.75rem;
    }
    
    .load-more .btn {
        width: 100%;
        padding: 1rem 2rem;
    }
}

/* 暗色主题支持 */
@media (prefers-color-scheme: dark) {
    .creation-card {
        background: #2d3748;
        color: #e2e8f0;
    }
    
    .creation-info .prompt {
        color: #e2e8f0;
    }
    
    .creation-info .author {
        color: #a0aec0;
    }
    
    .filters {
        background: #2d3748;
    }
    
    .filter-group label {
        color: #e2e8f0;
    }
    
    .filter-group select {
        background: #4a5568;
        border-color: #718096;
        color: #e2e8f0;
    }
    
    .empty-state {
        background: #2d3748;
        color: #e2e8f0;
    }
    
    .empty-state p {
        color: #e2e8f0;
    }
}

/* 高对比度模式支持 */
@media (prefers-contrast: high) {
    .creation-card {
        border: 2px solid #000;
    }
    
    .btn-like {
        border: 1px solid #000;
    }
    
    .filters {
        border: 1px solid #000;
    }
}

/* 减少动画支持 */
@media (prefers-reduced-motion: reduce) {
    .creation-card,
    .creation-media video,
    .creation-media img,
    .btn-like,
    .btn {
        transition: none;
        animation: none;
    }
    
    .creation-card:hover {
        transform: none;
    }
}

/* 响应式设计 - 增强移动端支持 */
@media (max-width: 768px) {
    /* 容器优化 */
    .container {
        padding: 0 15px;
    }
    
    /* 页面头部优化 */
    .creative-header {
        padding: 1.5rem 0;
        margin-bottom: 2rem;
    }
    
    .creative-header h1 {
        font-size: 2rem;
        margin-bottom: 0.75rem;
    }
    
    .creative-header p {
        font-size: 1rem;
        padding: 0 1rem;
    }
    
    .login-prompt {
        max-width: 100%;
        margin: 0 1rem;
    }
    
    /* 筛选区域优化 */
    .filters {
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
        padding: 1.25rem;
        margin-bottom: 1.5rem;
    }
    
    .filter-group {
        justify-content: space-between;
    }
    
    .filter-group label {
        font-size: 0.95rem;
    }
    
    .filter-group select {
        width: 150px;
        font-size: 0.9rem;
    }
    
    /* 创意网格优化 */
    .creations-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: 1.5rem;
        margin-bottom: 2rem;
        padding: 0 0.5rem;
    }
    
    /* 创意卡片优化 */
    .creation-card {
        margin-bottom: 1.5rem;
    }
    
    .creation-media video,
    .creation-media img {
        height: 180px;
    }
    
    /* 统计信息优化 */
    .creation-stats {
        top: 10px;
        right: 10px;
        padding: 0.4rem 0.75rem;
        gap: 0.6rem;
    }
    
    /* 卡片信息优化 */
    .creation-info {
        padding: 1.25rem;
    }
    
    .creation-info .prompt {
        font-size: 0.9rem;
        min-height: 4em;
    }
    
    .creation-info .author {
        font-size: 0.8rem;
        margin-bottom: 1rem;
    }
    
    /* 操作按钮优化 */
    .creation-actions {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .creation-actions .btn {
        width: 100%;
        padding: 0.65rem;
        font-size: 0.9rem;
    }
    
    .btn-like {
        padding: 0.65rem;
        font-size: 0.9rem;
    }
    
    /* 加载更多按钮优化 */
    .load-more {
        padding: 0 1rem;
        margin-bottom: 2rem;
    }
    
    .load-more .btn {
        width: 100%;
        padding: 0.8rem;
    }
    
    /* 空状态优化 */
    .empty-state {
        padding: 2rem 1rem;
        margin: 0 1rem;
    }
}

@media (max-width: 480px) {
    /* 小屏幕进一步优化 */
    .container {
        padding: 0 12px;
    }
    
    .creative-header {
        padding: 1.25rem 0;
    }
    
    .creative-header h1 {
        font-size: 1.75rem;
    }
    
    .filters {
        padding: 1rem;
    }
    
    .filter-group select {
        width: 130px;
        font-size: 0.85rem;
    }
    
    .creations-grid {
        grid-template-columns: 1fr;
        gap: 1.25rem;
        padding: 0;
    }
    
    .creation-media video,
    .creation-media img {
        height: 160px;
    }
    
    .creation-stats {
        font-size: 0.75rem;
        padding: 0.35rem 0.65rem;
    }
    
    .creation-info {
        padding: 1rem;
    }
    
    .creation-info .prompt {
        font-size: 0.85rem;
    }
    
    .creation-actions .btn,
    .btn-like {
        padding: 0.6rem;
        font-size: 0.85rem;
    }
    
    .load-more .btn {
        padding: 0.75rem;
    }
}