/* ============================================
   ANALYTICS SECTION STYLES
   ============================================ */

.analytics-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
}

.analytics-header h2 {
    margin: 0;
    font-size: 1.8rem;
}

.analytics-controls {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.analytics-filter {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-color);
    color: var(--text-color);
    cursor: pointer;
}

.btn-icon {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-color);
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.3s;
}

.btn-icon:hover {
    background: var(--hover-color);
}

/* Tabs */
.analytics-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
    border-bottom: 2px solid var(--border-color);
}

.analytics-tab {
    padding: 1rem 1.5rem;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s;
    font-size: 1rem;
    border-bottom: 3px solid transparent;
}

.analytics-tab:hover {
    color: var(--text-color);
    background: var(--hover-color);
}

.analytics-tab.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.analytics-tab i {
    margin-right: 0.5rem;
}

/* Tab Content */
.analytics-tab-content {
    display: none;
}

.analytics-tab-content.active {
    display: block;
}

/* KPI Cards */
.analytics-kpis {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.kpi-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.kpi-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
}

.kpi-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.kpi-value {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

.kpi-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.kpi-trend {
    font-size: 0.9rem;
    font-weight: bold;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    display: inline-block;
}

.kpi-trend.positive {
    background: #10b98120;
    color: #10b981;
}

.kpi-trend.negative {
    background: #ef444420;
    color: #ef4444;
}

.kpi-trend.neutral {
    background: var(--border-color);
    color: var(--text-secondary);
}

/* Charts */
.analytics-charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.chart-container {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
}

.chart-container h3 {
    margin-top: 0;
    margin-bottom: 1rem;
    font-size: 1.2rem;
    color: var(--text-color);
}

.chart-container canvas {
    max-height: 300px;
}

/* AI Comparison Table */
.analytics-table-wrapper {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    overflow-x: auto;
}

.ai-comparison-table {
    width: 100%;
    border-collapse: collapse;
}

.ai-comparison-table th,
.ai-comparison-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.ai-comparison-table th {
    background: var(--hover-color);
    font-weight: 600;
    color: var(--text-color);
}

.ai-comparison-table tr:last-child td {
    border-bottom: none;
}

.ai-comparison-table tr:hover {
    background: var(--hover-color);
}

/* Projects List */
.projects-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.project-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    transition: transform 0.3s, box-shadow 0.3s;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.project-header h4 {
    margin: 0;
    font-size: 1.1rem;
}

.project-favorite-ai {
    padding: 0.25rem 0.75rem;
    background: var(--primary-color);
    color: white;
    border-radius: 20px;
    font-size: 0.8rem;
}

.project-stats {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.project-stats .stat {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.project-stats .stat i {
    color: var(--primary-color);
}

.project-last-activity {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-style: italic;
}

/* Loading */
.analytics-section.loading {
    position: relative;
    pointer-events: none;
    opacity: 0.6;
}

.analytics-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 1000;
}

.analytics-loading i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.analytics-loading span {
    display: block;
    font-size: 1.1rem;
    color: var(--text-color);
}

/* Responsive */
@media (max-width: 768px) {
    .analytics-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .analytics-controls {
        flex-wrap: wrap;
        width: 100%;
    }
    
    .analytics-filter {
        flex: 1;
    }
    
    .analytics-charts-grid {
        grid-template-columns: 1fr;
    }
    
    .analytics-kpis {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .analytics-kpis {
        grid-template-columns: 1fr;
    }
}