/* 自定义样式 - 科技简约主题 */

:root {
    --primary: #3B82F6;
    --primary-dark: #2563EB;
    --secondary: #8B5CF6;
    --success: #10B981;
    --warning: #F59E0B;
    --error: #EF4444;
    --bg-dark: #0F172A;
    --bg-light: #F8FAFC;
    --text-dark: #1E293B;
    --text-light: #64748B;
    --border: #E2E8F0;
}

/* 全局样式 */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: var(--bg-light);
}

/* 渐变按钮 */
.btn-gradient {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-gradient:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(59, 130, 246, 0.3);
}

/* 卡片悬停效果 */
.card-hover {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card-hover:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* 渐变文字 */
.text-gradient {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 玻璃态效果 */
.glass-effect {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 输入框焦点效果 */
input:focus, textarea:focus, select:focus {
    outline: none;
    ring: 2px;
    ring-color: var(--primary);
    border-color: var(--primary);
}

/* 加载动画 */
@keyframes shimmer {
    0% {
        background-position: -468px 0;
    }
    100% {
        background-position: 468px 0;
    }
}

.skeleton {
    animation: shimmer 1.2s ease-in-out infinite;
    background: linear-gradient(to right, #f6f7f8 0%, #edeef1 20%, #f6f7f8 40%, #f6f7f8 100%);
    background-size: 800px 104px;
}

/* 脉冲动画 */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* 标签样式 */
.tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 500;
}

.tag-primary {
    background: rgba(59, 130, 246, 0.1);
    color: var(--primary);
}

.tag-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.tag-warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
}

.tag-error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error);
}

/* 状态指示器 */
.status-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-right: 6px;
}

.status-dot.pending {
    background: var(--warning);
}

.status-dot.running {
    background: var(--primary);
    animation: pulse 1.5s ease-in-out infinite;
}

.status-dot.completed {
    background: var(--success);
}

.status-dot.failed {
    background: var(--error);
}

/* 响应式网格 */
.app-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

@media (min-width: 768px) {
    .app-grid {
        grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    }
}

/* 视频封面 */
.video-cover {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 */
    overflow: hidden;
}

.video-cover video,
.video-cover img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-light);
}

.empty-state svg {
    width: 120px;
    height: 120px;
    margin: 0 auto 1rem;
    opacity: 0.5;
}