/* 团队工作报告智能分析系统 - 自定义样式 */

/* 全局样式改进 */
* {
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    margin: 0;
}

/* 导航栏样式优化 */
nav {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(229, 231, 235, 0.8);
}

nav .container {
    background: transparent;
}

/* 主容器样式 */
.main-container {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    margin: 20px;
    padding: 20px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* 文件上传区域增强 */
.upload-area {
    border: 2px dashed #d1d5db;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.8);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.upload-area::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.1), transparent);
    transition: left 0.5s;
}

.upload-area:hover {
    border-color: #3b82f6;
    background: rgba(239, 246, 255, 0.9);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.15);
}

.upload-area:hover::before {
    left: 100%;
}

.upload-area.dragover {
    border-color: #10b981;
    background: rgba(236, 253, 245, 0.9);
    transform: scale(1.02);
    box-shadow: 0 12px 35px rgba(16, 185, 129, 0.2);
}

.upload-area .fas {
    transition: transform 0.3s ease;
}

.upload-area:hover .fas {
    transform: scale(1.1);
}

/* 状态指示器样式 */
.status-indicator {
    display: inline-flex;
    align-items: center;
    padding: 8px 12px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    margin-top: 8px;
}

.status-success {
    background: #dcfce7;
    color: #166534;
    border: 1px solid #bbf7d0;
}

.status-error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.status-loading {
    background: #dbeafe;
    color: #1d4ed8;
    border: 1px solid #bfdbfe;
}

/* 按钮增强 */
.btn-primary {
    background: linear-gradient(45deg, #3b82f6, #1e40af);
    border: none;
    border-radius: 12px;
    padding: 12px 24px;
    color: white;
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.3);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-primary:disabled {
    background: #9ca3af;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* 卡片样式增强 */
.card {
    background: rgba(255, 255, 255, 0.9);
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
}

/* 统计卡片动画 */
.stats-card {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.7));
    border-radius: 16px;
    padding: 20px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.stats-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(45deg, #3b82f6, #10b981, #f59e0b, #ef4444);
    transform: translateX(-100%);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    50% { transform: translateX(100%); }
    100% { transform: translateX(100%); }
}

.stats-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 50px rgba(0, 0, 0, 0.15);
}

/* 图表容器增强 */
.chart-container {
    position: relative;
    height: 400px;
    width: 100%;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 16px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* 加载动画增强 */
.loading-container {
    text-align: center;
    padding: 60px 20px;
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(59, 130, 246, 0.3);
    border-top: 4px solid #3b82f6;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading-dots {
    display: inline-flex;
    align-items: center;
}

.loading-dots::after {
    content: '';
    display: inline-block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #3b82f6;
    margin-left: 4px;
    animation: dots 1.4s infinite ease-in-out both;
}

.loading-dots::before {
    content: '';
    display: inline-block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #3b82f6;
    margin-right: 4px;
    animation: dots 1.4s infinite ease-in-out both;
    animation-delay: -0.32s;
}

@keyframes dots {
    0%, 80%, 100% {
        transform: scale(0);
        opacity: 0.5;
    }
    40% {
        transform: scale(1);
        opacity: 1;
    }
}

/* 洞察卡片样式 */
.insight-card {
    border-radius: 12px;
    padding: 20px;
    margin: 16px 0;
    border-left: 4px solid;
    transition: all 0.3s ease;
    position: relative;
}

.insight-card.positive {
    background: linear-gradient(135deg, #ecfdf5, #d1fae5);
    border-left-color: #10b981;
}

.insight-card.warning {
    background: linear-gradient(135deg, #fef3c7, #fed7aa);
    border-left-color: #f59e0b;
}

.insight-card.info {
    background: linear-gradient(135deg, #dbeafe, #bfdbfe);
    border-left-color: #3b82f6;
}

.insight-card:hover {
    transform: translateX(8px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

/* 表格增强 */
.enhanced-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.enhanced-table thead tr {
    background: linear-gradient(135deg, #f8fafc, #e2e8f0);
}

.enhanced-table th,
.enhanced-table td {
    padding: 16px;
    text-align: left;
    border-bottom: 1px solid #e2e8f0;
}

.enhanced-table tbody tr {
    transition: background 0.2s ease;
}

.enhanced-table tbody tr:hover {
    background: #f8fafc;
}

.enhanced-table tbody tr:last-child td {
    border-bottom: none;
}

/* 响应式设计增强 */
@media (max-width: 768px) {
    .main-container {
        margin: 10px;
        padding: 16px;
    }
    
    .upload-area {
        padding: 20px 12px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .chart-container {
        height: 300px;
    }
    
    .enhanced-table {
        font-size: 14px;
    }
    
    .enhanced-table th,
    .enhanced-table td {
        padding: 12px 8px;
    }
}

@media (max-width: 480px) {
    .chart-container {
        height: 250px;
        padding: 12px;
    }
    
    .card {
        padding: 16px;
    }
    
    .stats-card {
        padding: 16px;
    }
    
    .btn-primary {
        padding: 10px 20px;
        font-size: 14px;
    }
}

/* 深色模式支持 */
@media (prefers-color-scheme: dark) {
    body {
        background: linear-gradient(135deg, #1a202c 0%, #2d3748 100%);
    }
    
    .card {
        background: rgba(45, 55, 72, 0.9);
        color: #f7fafc;
    }
    
    .upload-area {
        background: rgba(45, 55, 72, 0.8);
        color: #e2e8f0;
        border-color: #4a5568;
    }
    
    .upload-area:hover {
        background: rgba(59, 130, 246, 0.1);
        border-color: #3b82f6;
    }
    
    .enhanced-table {
        background: #2d3748;
        color: #e2e8f0;
    }
    
    .enhanced-table thead tr {
        background: linear-gradient(135deg, #1a202c, #2d3748);
    }
    
    .enhanced-table td {
        border-bottom-color: #4a5568;
    }
    
    .enhanced-table tbody tr:hover {
        background: rgba(74, 85, 104, 0.5);
    }
}

/* 滚动条美化 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.05);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: rgba(59, 130, 246, 0.5);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(59, 130, 246, 0.7);
}

/* 打印样式 */
@media print {
    body {
        background: white;
    }
    
    .main-container {
        box-shadow: none;
        border: none;
        margin: 0;
        padding: 0;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #e5e7eb;
        break-inside: avoid;
    }
    
    .chart-container {
        height: 300px !important;
    }
    
    .btn-primary,
    nav,
    .upload-area {
        display: none;
    }
}