/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2563eb;
    --secondary-color: #10b981;
    --purple-color: #8b5cf6;
    --orange-color: #f59e0b;
    --danger-color: #ef4444;
    --dark-bg: #1e293b;
    --sidebar-bg: #0f172a;
    --card-bg: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --hover-bg: #f1f5f9;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f8fafc;
    color: var(--text-primary);
}

.dashboard-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 260px;
    background: var(--sidebar-bg);
    color: white;
    padding: 20px;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.logo i {
    font-size: 32px;
    color: var(--primary-color);
}

.logo h2 {
    font-size: 20px;
    font-weight: 600;
}

.nav-menu {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: 8px;
    color: #94a3b8;
    text-decoration: none;
    transition: all 0.3s ease;
}

.nav-item:hover {
    background: rgba(255, 255, 255, 0.05);
    color: white;
}

.nav-item.active {
    background: var(--primary-color);
    color: white;
}

.nav-item i {
    font-size: 18px;
    width: 20px;
}

/* Main Content */
.main-content {
    margin-left: 260px;
    flex: 1;
    padding: 30px;
    width: calc(100% - 260px);
}

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--border-color);
}

.header-left h1 {
    font-size: 28px;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 14px;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.date-display {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: var(--card-bg);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.btn-refresh {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-refresh:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

/* Content Sections */
.content-section {
    display: none;
}

.content-section.active {
    display: block;
}

/* Stats Cards */
.stats-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.stat-icon.blue {
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary-color);
}

.stat-icon.green {
    background: rgba(16, 185, 129, 0.1);
    color: var(--secondary-color);
}

.stat-icon.purple {
    background: rgba(139, 92, 246, 0.1);
    color: var(--purple-color);
}

.stat-icon.orange {
    background: rgba(245, 158, 11, 0.1);
    color: var(--orange-color);
}

.stat-content h3 {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.stat-content p {
    color: var(--text-secondary);
    font-size: 14px;
}

/* Gender Card Styles */
.gender-card {
    display: flex;
    flex-direction: column;
    padding: 20px 24px;
}

.stat-card-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 15px;
    text-align: center;
}

.gender-chart-container {
    width: 100%;
    height: 140px;
    position: relative;
    margin: 0 auto;
}

.gender-chart-container canvas {
    max-height: 140px;
}

.gender-legend {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 10px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.legend-color {
    width: 12px;
    height: 12px;
    border-radius: 3px;
}

.female-color {
    background-color: rgba(139, 92, 246, 0.8);
}

.male-color {
    background-color: rgba(37, 99, 235, 0.8);
}

.legend-text {
    font-size: 13px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 4px;
}

.legend-text i {
    font-size: 14px;
}

.legend-text strong {
    color: var(--text-primary);
    margin-left: 2px;
}

/* Charts */
.charts-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.chart-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.chart-card h3 {
    margin-bottom: 20px;
    color: var(--text-primary);
    font-size: 18px;
}

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

/* Tables */
.table-container {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    overflow-x: auto;
}

.table-container h3 {
    margin-bottom: 20px;
    color: var(--text-primary);
    font-size: 18px;
}

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

.data-table thead {
    background: var(--hover-bg);
}

.data-table th {
    padding: 12px;
    text-align: left;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 14px;
    border-bottom: 2px solid var(--border-color);
}

.data-table td {
    padding: 12px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 14px;
}

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

/* Table Controls */
.table-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.search-input {
    padding: 10px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    width: 300px;
}

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

.pagination-info {
    color: var(--text-secondary);
    font-size: 14px;
}

/* Alert Box */
.alert-box {
    padding: 16px 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
}

.alert-box.warning {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid var(--orange-color);
    color: #92400e;
}

.alert-box i {
    font-size: 20px;
}

/* AI Analysis Section */
.ai-container {
    max-width: 1200px;
    margin: 0 auto;
}

.ai-header {
    text-align: center;
    margin-bottom: 30px;
    padding: 30px;
    background: linear-gradient(135deg, var(--primary-color), var(--purple-color));
    border-radius: 12px;
    color: white;
}

.ai-header i {
    font-size: 48px;
    margin-bottom: 15px;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.ai-header h2 {
    font-size: 28px;
    margin-bottom: 10px;
}

.ai-header p {
    font-size: 16px;
    opacity: 0.9;
}

.ai-input-section {
    background: var(--card-bg);
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    margin-bottom: 25px;
}

.input-group {
    display: flex;
    gap: 15px;
    align-items: flex-start;
}

#ai-query {
    flex: 1;
    padding: 15px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 15px;
    font-family: inherit;
    resize: vertical;
    transition: border-color 0.3s;
}

#ai-query:focus {
    outline: none;
    border-color: var(--primary-color);
}

.btn-analyze {
    padding: 15px 30px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    white-space: nowrap;
    transition: all 0.3s;
}

.btn-analyze:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.btn-analyze:disabled {
    background: var(--text-secondary);
    cursor: not-allowed;
    transform: none;
}

.ai-loading {
    text-align: center;
    padding: 50px;
    background: var(--card-bg);
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    margin-bottom: 25px;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.ai-loading p {
    color: var(--text-secondary);
    font-size: 16px;
}

.ai-results {
    display: grid;
    gap: 25px;
    margin-bottom: 25px;
}

.ai-insights {
    background: var(--card-bg);
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.ai-insights h3 {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 20px;
}

.ai-insights h3 i {
    color: var(--orange-color);
}

#ai-insights-text {
    line-height: 1.8;
    color: var(--text-primary);
}

#ai-insights-text p {
    margin-bottom: 12px;
}

#ai-insights-text ul {
    margin-left: 20px;
    margin-bottom: 12px;
}

#ai-insights-text li {
    margin-bottom: 8px;
}

.ai-chart-container {
    background: var(--card-bg);
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.ai-chart-container h3 {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--primary-color);
    margin-bottom: 20px;
    font-size: 20px;
}

.ai-chart-container h3 i {
    color: var(--secondary-color);
}

#aiChart {
    max-height: 400px;
}

.ai-examples {
    background: var(--card-bg);
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.ai-examples h3 {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-secondary);
    margin-bottom: 15px;
    font-size: 18px;
}

.example-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.example-chip {
    padding: 10px 20px;
    background: var(--hover-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 14px;
}

.example-chip:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

/* Loading State */
.loading {
    text-align: center;
    padding: 40px;
    color: var(--text-secondary);
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        width: 200px;
    }
    
    .main-content {
        margin-left: 200px;
        width: calc(100% - 200px);
    }
    
    .stats-cards {
        grid-template-columns: 1fr;
    }
    
    .charts-row {
        grid-template-columns: 1fr;
    }
    
    .input-group {
        flex-direction: column;
    }
    
    .btn-analyze {
        width: 100%;
        justify-content: center;