/* ==================== GLOBAL STYLES ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Power BI Color Palette */
    --primary-blue: #FF6B35;
    --secondary-blue: #FF6B35;
    --dark-blue: #004578;
    --light-blue: #E8F4FF;

    /* Tableau-inspired colors */
    --tableau-orange: #FF7F0E;
    --tableau-green: #2CA02C;
    --tableau-red: #D62728;
    --tableau-purple: #9467BD;
    --tableau-teal: #17BECF;

    /* Semantic Colors */
    --success: #107C10;
    --warning: #F7630C;
    --danger: #D13438;
    --info: #0078D4;

    /* Neutrals */
    --bg-primary: #F3F2F1;
    --bg-secondary: #FFFFFF;
    --bg-card: #FFFFFF;
    --border-color: #EDEBE9;
    --text-primary: #201F1E;
    --text-secondary: #605E5C;
    --text-muted: #8A8886;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 2px 4px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 4px 12px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 8px 24px rgba(0, 0, 0, 0.15);

    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;

    /* Fonts */
    --font-primary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    font-family: var(--font-primary);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    overflow-x: hidden;
}

/* ==================== HEADER ==================== */
.dashboard-header {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    color: white;
    padding: var(--spacing-lg) var(--spacing-xl);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1800px;
    margin: 0 auto;
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.header-left i {
    font-size: 32px;
}

.header-left h1 {
    font-size: 24px;
    font-weight: 600;
}

.header-right {
    display: flex;
    gap: var(--spacing-sm);
}

.btn-export,
.btn-refresh {
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    transition: all 0.3s ease;
}

.btn-export:hover,
.btn-refresh:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

/* ==================== FILTER BAR ==================== */
.filter-bar {
    background: var(--bg-secondary);
    padding: var(--spacing-lg) var(--spacing-xl);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.filter-content {
    display: flex;
    gap: var(--spacing-lg);
    align-items: flex-end;
    max-width: 1800px;
    margin: 0 auto;
    flex-wrap: wrap;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.filter-group label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.filter-select,
.filter-input {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 14px;
    min-width: 200px;
    background: white;
    transition: all 0.2s ease;
}

.filter-select:focus,
.filter-input:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(0, 120, 212, 0.1);
}

.btn-apply {
    background: var(--primary-blue);
    color: white;
    border: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    transition: all 0.3s ease;
}

.btn-apply:hover {
    background: var(--secondary-blue);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ==================== MAIN CONTENT ==================== */
.dashboard-main {
    max-width: 1800px;
    margin: 0 auto;
    padding: var(--spacing-xl);
}

/* ==================== KPI CARDS ==================== */
.kpi-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.kpi-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.kpi-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: currentColor;
}

.kpi-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.kpi-primary { color: var(--primary-blue); }
.kpi-success { color: var(--success); }
.kpi-info { color: var(--info); }
.kpi-warning { color: var(--warning); }

.kpi-icon {
    display: none;
}

.kpi-content {
    width: 100%;
    text-align: center;
}

.kpi-value {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.kpi-label {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.kpi-trend {
    font-size: 12px;
    font-weight: 600;
    display: flex;
    justify-content: center;
}

.trend-indicator {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.trend-indicator.up {
    color: var(--success);
}

.trend-indicator.down {
    color: var(--danger);
}

/* ==================== CHARTS SECTION ==================== */
.charts-section {
    margin-bottom: var(--spacing-xl);
}

.chart-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.chart-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.chart-card:hover {
    box-shadow: var(--shadow-lg);
}

.chart-full {
    grid-column: 1 / -1;
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--border-color);
}

.chart-header h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.chart-menu-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
}

.chart-menu-btn:hover {
    background: var(--bg-primary);
    color: var(--text-primary);
}

.chart-container {
    position: relative;
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.chart-legend {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 13px;
    color: var(--text-secondary);
}

.legend-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.legend-dot.high { background: var(--success); }
.legend-dot.medium { background: var(--tableau-orange); }
.legend-dot.low { background: var(--danger); }

/* ==================== TABLES SECTION ==================== */
.tables-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.table-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.table-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    background: linear-gradient(to right, var(--light-blue), white);
    border-bottom: 2px solid var(--primary-blue);
}

.table-header h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.table-actions {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

.search-input {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 14px;
    width: 250px;
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-blue);
}

.filter-select-small {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 14px;
}

.btn-table-export {
    background: var(--success);
    color: white;
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 16px;
    transition: all 0.2s ease;
}

.btn-table-export:hover {
    background: #0F6A0F;
    transform: scale(1.05);
}

.table-container {
    overflow-x: auto;
    max-height: 500px;
    overflow-y: auto;
}

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

.data-table thead {
    background: var(--bg-primary);
    position: sticky;
    top: 0;
    z-index: 10;
}


.data-table th {
    padding: var(--spacing-md);
    text-align: left;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 2px solid var(--border-color);
}

.data-table th.sortable {
    cursor: pointer;
    user-select: none;
    transition: all 0.2s ease;
}

.data-table th.sortable:hover {
    background: var(--border-color);
    color: var(--primary-blue);
}

.data-table td {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    font-size: 14px;
}

.data-table tbody tr {
    transition: all 0.2s ease;
}

.data-table tbody tr:hover {
    background: var(--light-blue);
}

.loading-row td {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-muted);
}

.status-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

.status-present {
    background: #E5F7E5;
    color: var(--success);
}

.status-absent {
    background: #FDEAEA;
    color: var(--danger);
}

.priority-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
}

.priority-critical {
    background: var(--danger);
    color: white;
}

.priority-high {
    background: var(--warning);
    color: white;
}

.priority-medium {
    background: var(--tableau-teal);
    color: white;
}

.engagement-bar {
    width: 100%;
    height: 8px;
    background: var(--border-color);
    border-radius: 4px;
    overflow: hidden;
}

.engagement-fill {
    height: 100%;
    border-radius: 4px;
    transition: width 0.3s ease;
}

.engagement-high { background: var(--success); }
.engagement-medium { background: var(--tableau-orange); }
.engagement-low { background: var(--danger); }

.btn-action {
    background: var(--primary-blue);
    color: white;
    border: none;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-action:hover {
    background: var(--secondary-blue);
}

.table-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
}

.table-info {
    font-size: 13px;
    color: var(--text-secondary);
}

.table-pagination {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.btn-page {
    background: white;
    border: 1px solid var(--border-color);
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-page:hover:not(:disabled) {
    background: var(--primary-blue);
    color: white;
    border-color: var(--primary-blue);
}

.btn-page:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.page-info {
    font-size: 13px;
    color: var(--text-secondary);
}

/* ==================== FOOTER ==================== */
.dashboard-footer {
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    text-align: center;
    border-top: 1px solid var(--border-color);
    margin-top: var(--spacing-xl);
}

.footer-content p {
    font-size: 13px;
    color: var(--text-muted);
}

/* ==================== LOADER ==================== */
.loader {
    border: 3px solid var(--border-color);
    border-top: 3px solid var(--primary-blue);
    border-radius: 50%;
    width: 30px;
    height: 30px;
    animation: spin 1s linear infinite;
    display: inline-block;
    margin-right: var(--spacing-sm);
}

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

/* ==================== RESPONSIVE ==================== */
@media (max-width: 1200px) {
    .chart-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .dashboard-header {
        padding: var(--spacing-md);
    }

    .header-content {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .filter-content {
        flex-direction: column;
        align-items: stretch;
    }

    .filter-select,
    .filter-input {
        min-width: 100%;
    }

    .kpi-section {
        grid-template-columns: 1fr;
    }

    .dashboard-main {
        padding: var(--spacing-md);
    }

    .table-actions {
        flex-direction: column;
        width: 100%;
    }

    .search-input {
        width: 100%;
    }
}

/* ==================== UTILITY CLASSES ==================== */
.text-center { text-align: center; }
.text-right { text-align: right; }
.font-bold { font-weight: 700; }
.text-muted { color: var(--text-muted); }
.mb-0 { margin-bottom: 0; }
.mt-2 { margin-top: var(--spacing-md); }