/* CVE.ICU Design System - Matching cnascorecard.org */

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

/* Root Variables - Design System Colors */
:root {
    /* Base Colors */
    --color-bg-primary: #f8f9fa;
    --color-bg-secondary: #e9ecef;
    --color-bg-content: #ffffff;
    --color-bg-hover: #f8f9fa;
    --color-text: #212529;
    --color-text-primary: #212529;
    --color-text-secondary: #6c757d;
    --color-text-muted: #adb5bd;
    --color-primary: #0d6efd;
    --color-primary-light: rgba(13, 110, 253, 0.1);
    --color-accent: #0d6efd;
    --color-border: #dee2e6;
    --color-border-light: #f1f3f4;
    --color-success: #198754;
    --color-warning: #ffc107;
    --color-danger: #dc3545;
    
    /* Light Blue to Light Grey Visualization Palette */
    --viz-color-1: #e3f2fd;  /* Very light blue */
    --viz-color-2: #bbdefb;  /* Light blue */
    --viz-color-3: #90caf9;  /* Medium light blue */
    --viz-color-4: #64b5f6;  /* Medium blue */
    --viz-color-5: #42a5f5;  /* Blue */
    --viz-color-6: #2196f3;  /* Primary blue */
    --viz-color-7: #1e88e5;  /* Darker blue */
    --viz-color-8: #1976d2;  /* Dark blue */
    --viz-color-9: #9e9e9e;  /* Medium grey */
    --viz-color-10: #757575; /* Dark grey */
    
    /* Chart Color Palette - Light Blue to Grey Gradient */
    --chart-primary: #2196f3;
    --chart-secondary: #64b5f6;
    --chart-tertiary: #90caf9;
    --chart-quaternary: #bbdefb;
    --chart-accent-1: #81c784;
    --chart-accent-2: #ffb74d;
    --chart-accent-3: #f06292;
    --chart-grey-light: #e0e0e0;
    --chart-grey-medium: #9e9e9e;
    --chart-grey-dark: #616161;
    
    /* Semantic Colors */
    --color-info: #17a2b8;
    --color-light: #f8f9fa;
    --color-dark: #343a40;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-base: 16px;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Layout */
    --container-max-width: 1200px;
    --border-radius: 0.5rem;
    --border-radius-lg: 0.75rem;
    --box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --box-shadow-lg: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

/* Dark Mode Theme */
[data-theme="dark"] {
    --color-bg-primary: #0f1117;
    --color-bg-secondary: #1a1d27;
    --color-bg-content: #1e2130;
    --color-bg-hover: #252838;
    --color-text: #e1e4ea;
    --color-text-primary: #e1e4ea;
    --color-text-secondary: #9ca3b4;
    --color-text-muted: #6b7280;
    --color-primary: #3b82f6;
    --color-primary-light: rgba(59, 130, 246, 0.15);
    --color-accent: #60a5fa;
    --color-border: #2d3348;
    --color-border-light: #252838;
    --color-success: #34d399;
    --color-warning: #fbbf24;
    --color-danger: #f87171;
    --color-info: #22d3ee;
    --color-light: #1a1d27;
    --color-dark: #e1e4ea;
    --box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.2);
    --box-shadow-lg: 0 0.5rem 1rem rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .page-header {
    background: linear-gradient(135deg, #1a1d27 0%, #252838 100%);
}

[data-theme="dark"] .stat-card {
    background: linear-gradient(135deg, #1e2130 0%, #252838 100%);
    border-color: #2d3348;
}

[data-theme="dark"] .stat-card:hover {
    border-color: rgba(59, 130, 246, 0.4);
}

[data-theme="dark"] a:hover {
    color: #93c5fd;
}

[data-theme="dark"] .card-header.bg-primary {
    background-color: #1e3a5f !important;
}

[data-theme="dark"] .bg-light {
    background-color: #252838 !important;
}

[data-theme="dark"] .page-header button {
    background-color: #252838 !important;
    border-color: #2d3348 !important;
    color: var(--color-text-primary) !important;
}

[data-theme="dark"] .page-header button:hover {
    background-color: #2d3348 !important;
    border-color: var(--color-primary) !important;
    color: var(--color-primary) !important;
}

[data-theme="dark"] .page-header button:active,
[data-theme="dark"] .page-header button.active {
    background-color: var(--color-primary) !important;
    color: #ffffff !important;
}

[data-theme="dark"] .table {
    color: var(--color-text-primary);
}

[data-theme="dark"] .table th,
[data-theme="dark"] .table td {
    border-color: #2d3348;
}

[data-theme="dark"] .table-hover tbody tr:hover {
    background-color: #252838;
}

[data-theme="dark"] .text-muted {
    color: var(--color-text-secondary) !important;
}

[data-theme="dark"] .skeleton {
    background: #2d3348;
}

[data-theme="dark"] .homepage-chart-card {
    background-color: var(--color-bg-content);
    border-color: #2d3348;
}

[data-theme="dark"] .calendar-container {
    background: var(--color-bg-content);
}

[data-theme="dark"] .quick-select-btn {
    background-color: #252838;
    border-color: #2d3348;
    color: var(--color-text-primary);
}

[data-theme="dark"] .quick-select-btn:hover {
    background-color: #3b82f6;
    color: white;
    border-color: #3b82f6;
}

[data-theme="dark"] .btn-outline-secondary {
    color: var(--color-text-secondary);
    border-color: #2d3348;
}

[data-theme="dark"] .btn-outline-secondary:hover {
    background-color: #252838;
    color: var(--color-text-primary);
}

[data-theme="dark"] .dropdown-menu {
    background: var(--color-bg-content) !important;
    border-color: #2d3348 !important;
}

/* Dark mode toggle button */
.theme-toggle {
    background: none;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    cursor: pointer;
    padding: 0.375rem 0.5rem;
    font-size: 1.125rem;
    line-height: 1;
    color: var(--color-text-secondary);
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    margin-left: 0.75rem;
}

.theme-toggle:hover {
    background-color: var(--color-bg-hover);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* Base Typography */
body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-semibold);
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

h1 {
    font-size: 2.5rem;
    font-weight: var(--font-weight-bold);
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

/* Links */
a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color 0.15s ease-in-out;
}

a:hover {
    color: #0a58ca;
    text-decoration: underline;
}

/* Container */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Header and Navigation */
.header {
    background-color: var(--color-bg-content);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--box-shadow);
}

.nav-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 4rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: var(--font-weight-bold);
    font-size: 1.25rem;
    color: var(--color-text-primary);
    text-decoration: none;
}

.logo:hover {
    text-decoration: none;
    color: var(--color-accent);
}

.logo img {
    width: 2rem;
    height: 2rem;
    object-fit: contain;
}

.nav {
    display: flex;
    align-items: center;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    margin: 0;
    padding: 0;
}

.nav-menu a {
    color: var(--color-text-secondary);
    font-weight: var(--font-weight-medium);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    transition: all 0.15s ease-in-out;
    border: 2px solid transparent;
}

.nav-menu a:hover {
    color: var(--color-accent);
    background-color: rgba(13, 110, 253, 0.1);
    border-color: var(--color-accent);
    text-decoration: none;
}

.nav-menu a.active {
    color: var(--color-accent);
    background-color: rgba(13, 110, 253, 0.1);
    border-color: var(--color-accent);
    font-weight: var(--font-weight-semibold);
}

/* Navigation Dropdown */
.nav-dropdown {
    position: relative;
}

.nav-dropdown .dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 150px;
    background: var(--color-bg-content);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow-lg);
    padding: var(--spacing-xs) 0;
    margin-top: var(--spacing-xs);
    list-style: none;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s ease;
    z-index: 1001;
}

.nav-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-dropdown .dropdown-menu li {
    margin: 0;
}

.nav-dropdown .dropdown-menu a {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-text-secondary);
    font-weight: var(--font-weight-medium);
    border: none;
    border-radius: 0;
    white-space: nowrap;
}

.nav-dropdown .dropdown-menu a:hover {
    background-color: rgba(13, 110, 253, 0.1);
    color: var(--color-accent);
    border: none;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.nav-toggle span {
    width: 1.5rem;
    height: 2px;
    background-color: var(--color-text-primary);
    margin: 2px 0;
    transition: 0.3s;
}

/* Main Content */
main {
    min-height: calc(100vh - 8rem);
    padding: var(--spacing-xl) 0;
}

/* Professional Page Header Styling */
.page-header {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow);
    padding: var(--spacing-xl) var(--spacing-lg);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #2196f3, #64b5f6, #90caf9);
    border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
}

.page-header h1 {
    color: var(--color-text-primary);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-sm);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.page-header small {
    color: var(--color-text-secondary);
    font-size: 1rem;
    line-height: 1.5;
    font-weight: var(--font-weight-medium);
}

/* Page header buttons - ensure proper contrast against gradient background */
.page-header button {
    background-color: #ffffff !important;
    border: 2px solid var(--color-border) !important;
    color: var(--color-text-primary) !important;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1) !important;
}

.page-header button:hover {
    background-color: #f8f9fa !important;
    border-color: var(--color-primary) !important;
    color: var(--color-primary) !important;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15) !important;
}

.page-header button:active,
.page-header button.active {
    background-color: var(--color-primary) !important;
    border-color: var(--color-primary) !important;
    color: #ffffff !important;
}

/* Responsive page header */
@media (max-width: 768px) {
    .page-header {
        padding: var(--spacing-lg) var(--spacing-md);
        margin-top: var(--spacing-md);
    }
    
    .page-header h1 {
        font-size: 2rem;
    }
    
    .page-header small {
        font-size: 0.9rem;
    }
}

/* Cards */
.card {
    background-color: var(--color-bg-content);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.card-header {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.card-title {
    font-size: 1.25rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
}

.card-body {
    padding: 0;
}

/* Professional Stats Cards Design System */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

/* Responsive grid for smaller screens */
@media (max-width: 992px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
}

@media (max-width: 576px) {
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
}

.stat-card {
    position: relative;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border: 1px solid rgba(226, 232, 240, 0.8);
    border-radius: 16px;
    padding: 2rem 1.5rem;
    text-align: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 
        0 1px 3px rgba(0, 0, 0, 0.05),
        0 1px 2px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, 
        var(--chart-primary) 0%, 
        var(--chart-secondary) 50%, 
        var(--chart-tertiary) 100%);
    opacity: 0.8;
}

.stat-card:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 
        0 10px 25px rgba(0, 0, 0, 0.1),
        0 6px 10px rgba(0, 0, 0, 0.05);
    border-color: rgba(59, 130, 246, 0.3);
}

.stat-card:hover::before {
    height: 6px;
    opacity: 1;
}

.stat-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, 
        rgba(59, 130, 246, 0.1) 0%, 
        rgba(147, 197, 253, 0.1) 100%);
    border-radius: 16px;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    color: var(--chart-primary);
    transition: all 0.3s ease;
}

.stat-card:hover .stat-icon {
    transform: scale(1.1);
    background: linear-gradient(135deg, 
        rgba(59, 130, 246, 0.15) 0%, 
        rgba(147, 197, 253, 0.15) 100%);
}

.stat-content {
    text-align: left;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1;
    color: var(--color-text-primary);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 0.25rem;
    letter-spacing: -0.025em;
}

.stat-sublabel {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    line-height: 1.4;
    font-weight: 500;
}

/* Sparkline charts in stat cards */
.stat-sparkline {
    width: 100%;
    height: 32px;
    margin-top: 0.5rem;
}

.stat-sparkline canvas {
    width: 100% !important;
    height: 32px !important;
}

/* Enhanced stats cards for specific use cases */
.stat-card.highlight {
    background: linear-gradient(135deg, 
        rgba(59, 130, 246, 0.02) 0%, 
        rgba(147, 197, 253, 0.02) 100%);
    border-color: rgba(59, 130, 246, 0.2);
}

.stat-card.highlight::before {
    background: linear-gradient(90deg, 
        var(--chart-primary) 0%, 
        var(--color-success) 100%);
}

/* Growth/trend indicators */
.stat-trend {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.75rem;
    font-weight: 600;
    margin-top: 0.5rem;
    padding: 0.25rem 0.5rem;
    border-radius: 6px;
}

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

.stat-trend.negative {
    color: var(--color-danger);
    background: rgba(239, 68, 68, 0.1);
}

.stat-trend.neutral {
    color: var(--color-text-secondary);
    background: rgba(156, 163, 175, 0.1);
}

/* Additional responsive adjustments for card content */
@media (max-width: 768px) {
    .stat-card {
        padding: 1.5rem 1.25rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .stat-icon {
        width: 48px;
        height: 48px;
        font-size: 1.25rem;
        margin-bottom: 1rem;
    }
}

@media (max-width: 480px) {
    .stat-card {
        padding: 1.25rem 1rem;
    }
    
    .stat-number {
        font-size: 1.75rem;
    }
}

/* Legacy support for existing stat-cards class */
.stat-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

/* Legacy stat-value, stat-label, stat-detail classes */
.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1;
    color: var(--color-text-primary);
    margin-bottom: 0.5rem;
}

.stat-detail {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    margin-top: 0.5rem;
    line-height: 1.4;
    font-weight: 500;
}

/* Year Grid Selector - Compact Version */
.year-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
    gap: var(--spacing-xs);
    margin-top: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.year-item {
    display: block;
    position: relative;
    cursor: pointer;
    transition: all 0.2s ease;
}

.year-item input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.year-item .year-label {
    display: block;
    padding: var(--spacing-xs) var(--spacing-sm);
    text-align: center;
    background-color: var(--color-bg-content);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    font-weight: var(--font-weight-medium);
    font-size: 0.8rem;
    transition: all 0.2s ease;
    user-select: none;
    min-height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.year-item:hover .year-label {
    border-color: var(--color-primary);
    background-color: var(--color-primary-light);
}

.year-item input[type="checkbox"]:checked + .year-label {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
    font-weight: var(--font-weight-semibold);
}

.year-item input[type="checkbox"]:focus + .year-label {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Compact Quick Selection Buttons */
.quick-select-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
    justify-content: center;
    align-items: center;
}

.quick-select-btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    background-color: var(--color-bg-content);
    color: var(--color-text);
    font-weight: var(--font-weight-medium);
    font-size: 0.75rem;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 80px;
    user-select: none;
    height: 28px;
}

.quick-select-btn:hover {
    border-color: var(--color-primary);
    background-color: var(--color-primary-light);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(13, 110, 253, 0.15);
}

.quick-select-btn:active {
    transform: translateY(0);
    box-shadow: 0 1px 4px rgba(13, 110, 253, 0.2);
}

.quick-select-btn.primary {
    color: var(--color-text-secondary);
}

.quick-select-btn.secondary:hover {
    border-color: var(--color-text);
    color: var(--color-text);
    background-color: var(--color-bg-hover);
}

/* Tables */
.table-container {
    overflow-x: auto;
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

th {
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    font-weight: var(--font-weight-semibold);
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: 2px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 10;
}

td {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
    vertical-align: top;
}

tbody tr:nth-child(even) {
    background-color: rgba(248, 249, 250, 0.5);
}

[data-theme="dark"] tbody tr:nth-child(even) {
    background-color: rgba(255, 255, 255, 0.03);
}

tbody tr:hover {
    background-color: rgba(13, 110, 253, 0.05);
}

/* Chart Container */
.chart-container {
    position: relative;
    height: 400px;
    width: 100%;
}

/* Homepage Chart Structure - Bulletproof Width Consistency */
.homepage-chart-section,
.homepage-preview-section {
    width: 100%;
    margin: 0;
    padding: 0;
}

.homepage-chart-card {
    background-color: var(--color-bg-content);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: var(--spacing-lg);
    width: 100%;
    max-width: none;
}

.homepage-chart-header {
    padding: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.homepage-chart-title {
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin: 0;
    margin-bottom: var(--spacing-xs);
}

.homepage-chart-subtitle {
    color: var(--color-text-muted);
    font-size: 0.875rem;
    display: block;
}

.homepage-chart-body {
    padding: var(--spacing-lg);
    width: 100%;
}

.homepage-chart-container {
    position: relative;
    width: 100%;
    height: 400px;
    margin: 0;
    padding: 0;
    background: none;
    border: none;
    box-shadow: none;
}

.homepage-preview-container {
    height: 400px;
}

.homepage-chart-footer {
    margin-top: var(--spacing-lg);
    text-align: center;
}

.chart-container canvas {
    max-height: 100%;
}

/* Chart Title Styling */
.chart-title {
    font-size: 1.1rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
    text-align: center;
}

/* Visualization Components */
.viz-card {
    background-color: var(--color-bg-content);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--box-shadow);
    transition: all 0.2s ease;
}

.viz-card:hover {
    transform: translateY(-1px);
    box-shadow: var(--box-shadow-lg);
    border-color: var(--color-primary-light);
}

.viz-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border-light);
}

.viz-title {
    font-size: 1.25rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin: 0;
}

.viz-subtitle {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    margin: var(--spacing-xs) 0 0 0;
}

/* Chart Legend Styling */
.chart-legend {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    justify-content: center;
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border-light);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.85rem;
    color: var(--color-text-secondary);
}

.legend-color {
    width: 12px;
    height: 12px;
    border-radius: 2px;
    flex-shrink: 0;
}

/* Data Table Styling for Charts */
.data-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: var(--spacing-md);
    font-size: 0.9rem;
}

.data-table th,
.data-table td {
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--color-border-light);
}

.data-table th {
    background-color: var(--color-bg-secondary);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    position: sticky;
    top: 0;
}

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

/* Metric Cards for Visualizations */
.metric-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.metric-card {
    background: linear-gradient(135deg, var(--viz-color-1), var(--viz-color-2));
    border: 1px solid var(--color-border-light);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    text-align: center;
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
}

.metric-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--chart-primary), var(--chart-secondary));
}

.metric-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(33, 150, 243, 0.15);
}

.metric-value {
    font-size: 2rem;
    font-weight: var(--font-weight-bold);
    color: var(--chart-primary);
    margin-bottom: var(--spacing-xs);
    line-height: 1;
}

.metric-label {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--spacing-xs);
}

.metric-change {
    font-size: 0.8rem;
    font-weight: var(--font-weight-medium);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
}

.metric-change.positive {
    color: var(--color-success);
}

.metric-change.negative {
    color: var(--color-danger);
}

.metric-change.neutral {
    color: var(--color-text-muted);
}

/* Loading States */
.loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xxl);
    color: var(--color-text-secondary);
}

.spinner {
    width: 2rem;
    height: 2rem;
    border: 3px solid var(--color-border);
    border-top: 3px solid var(--color-accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: var(--spacing-md);
}

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

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.text-muted { color: var(--color-text-secondary); }
.text-primary { color: var(--color-accent); }
.text-success { color: var(--color-success); }
.text-warning { color: var(--color-warning); }
.text-danger { color: var(--color-danger); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

/* Footer */
.footer {
    background-color: var(--color-bg-content);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-xl) 0;
    margin-top: auto;
    color: var(--color-text-secondary);
    font-size: 0.875rem;
}

.footer p {
    margin-bottom: var(--spacing-sm);
}

.footer a {
    color: var(--color-text-secondary);
}

/* Smart Insights Panel */
.insight-card {
    display: flex;
    align-items: center;
    padding: var(--spacing-md);
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    transition: all 0.3s ease;
    height: 100%;
}

.insight-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border-color: var(--color-primary);
}

.insight-icon {
    font-size: 2rem;
    margin-right: var(--spacing-md);
    opacity: 0.8;
}

.insight-content {
    flex: 1;
}

.insight-title {
    font-size: 0.9rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
    margin: 0 0 var(--spacing-xs) 0;
}

.insight-text {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    margin: 0;
    line-height: 1.4;
}

/* Export Buttons */
.export-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    align-items: center;
}

.export-buttons .btn {
    font-size: 0.8rem;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    transition: all 0.2s ease;
    border: 1px solid var(--color-border);
    background-color: var(--color-bg-content);
    color: var(--color-text);
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.export-buttons .btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    border-color: var(--color-primary);
    background-color: var(--color-primary-light);
}

.export-buttons .btn-primary {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}

.export-buttons .btn-primary:hover {
    background-color: #0b5ed7;
    border-color: #0b5ed7;
}

.export-buttons .btn-secondary {
    background-color: #6c757d;
    border-color: #6c757d;
    color: white;
}

.export-buttons .btn-secondary:hover {
    background-color: #5c636a;
    border-color: #5c636a;
}

.permalink-result {
    background-color: var(--color-bg-secondary);
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
}

.permalink-result input {
    font-size: 0.8rem;
    font-family: monospace;
    width: 100%;
    padding: var(--spacing-xs);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    background-color: var(--color-bg-content);
}

/* Enhanced Stat Cards */
.stat-card {
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.stat-card:hover::before {
    opacity: 1;
}

.stat-trend {
    font-size: 0.7rem;
    font-weight: var(--font-weight-medium);
    margin-top: var(--spacing-xs);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.stat-trend.positive {
    color: #198754;
}

.stat-trend.negative {
    color: #dc3545;
}

.stat-trend.neutral {
    color: var(--color-text-secondary);
}

.stat-percentage {
    font-size: 0.7rem;
    color: var(--color-text-secondary);
    margin-top: 2px;
}

/* Responsive adjustments for visualizations */
@media (max-width: 768px) {
    .insight-card {
        flex-direction: column;
        text-align: center;
        padding: var(--spacing-sm);
    }
    
    .insight-icon {
        margin-right: 0;
        margin-bottom: var(--spacing-xs);
        font-size: 1.5rem;
    }
    
    .export-buttons {
        justify-content: center;
    }
    
    .export-buttons .btn {
        flex: 1;
        min-width: 120px;
    }
    
    .metric-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: var(--spacing-sm);
    }
    
    .metric-card {
        padding: var(--spacing-md);
    }
    
    .metric-value {
        font-size: 1.5rem;
    }
    
    .chart-container {
        height: 300px;
        padding: var(--spacing-sm);
    }
    
    .viz-card {
        padding: var(--spacing-md);
    }
    
    .chart-legend {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-sm);
    }
    
    .data-table {
        font-size: 0.8rem;
    }
    
    .data-table th,
    .data-table td {
        padding: var(--spacing-xs) var(--spacing-sm);
    }
}

.footer a:hover {
    color: var(--color-accent);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--color-bg-content);
        border-top: 1px solid var(--color-border);
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: var(--box-shadow-lg);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    /* Mobile dropdown styling */
    .nav-dropdown {
        position: static;
    }
    
    .nav-dropdown .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: none;
        background: transparent;
        padding: 0;
        margin: 0;
        padding-left: var(--spacing-md);
        border-left: 2px solid var(--color-border);
        margin-left: var(--spacing-sm);
        margin-top: var(--spacing-xs);
    }
    
    .nav-dropdown .dropdown-menu a {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 0.9rem;
    }
    
    .nav-dropdown > a::after {
        content: ' ▾';
        font-size: 0.7rem;
        opacity: 0.6;
    }
    
    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: var(--spacing-md);
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .nav-container {
        padding: 0 var(--spacing-md);
    }
    
    .chart-container {
        height: 300px;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-number {
        font-size: 1.75rem;
    }
    
    .card {
        padding: var(--spacing-md);
    }
    
    th, td {
        padding: var(--spacing-sm);
    }
    
    .chart-container {
        height: 250px;
        padding: var(--spacing-xs);
    }
    
    .metric-grid {
        grid-template-columns: 1fr;
    }
    
    .metric-value {
        font-size: 1.25rem;
    }
    
    .viz-title {
        font-size: 1.1rem;
    }
    
    .chart-legend {
        gap: var(--spacing-xs);
    }
    
    .legend-item {
        font-size: 0.75rem;
    }
}

/* ========================================
   COMPREHENSIVE MOBILE ENHANCEMENTS
   ======================================== */

/* Touch-friendly minimum sizes for mobile */
@media (max-width: 768px) {
    /* Improved touch targets (minimum 44px) */
    button,
    .btn,
    .quick-select-btn,
    .nav-menu a,
    .year-label {
        min-height: 44px;
        min-width: 44px;
        padding: 0.75rem 1rem;
    }
    
    /* Better button group layouts */
    .quick-select-buttons {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 0.5rem;
        width: 100%;
    }
    
    .quick-select-buttons .quick-select-btn {
        width: 100%;
        min-width: unset;
    }
    
    /* Mobile-optimized year grid */
    .year-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 0.5rem;
    }
    
    .year-label {
        font-size: 0.875rem;
        padding: 0.5rem 0.25rem;
    }
    
    /* Improved table handling on mobile */
    .table-container {
        -webkit-overflow-scrolling: touch;
        position: relative;
    }
    
    table {
        min-width: 600px;
        font-size: 0.8rem;
    }
    
    th, td {
        white-space: nowrap;
        padding: 0.5rem;
    }
    
    /* Sticky first column for data tables */
    .data-table th:first-child,
    .data-table td:first-child {
        position: sticky;
        left: 0;
        background-color: var(--color-bg-content);
        z-index: 10;
        box-shadow: 2px 0 4px rgba(0, 0, 0, 0.1);
    }
    
    /* Better card layouts */
    .row {
        margin-left: 0;
        margin-right: 0;
    }
    
    .row > [class*='col-'] {
        padding-left: 0;
        padding-right: 0;
        margin-bottom: 1rem;
    }
    
    /* Mobile-friendly navigation */
    .nav-container {
        height: auto;
        min-height: 4rem;
        padding: 0.5rem 1rem;
    }
    
    .logo {
        font-size: 1.1rem;
    }
    
    .logo img {
        width: 1.75rem;
        height: 1.75rem;
    }
    
    /* Full-width mobile menu */
    .nav-menu {
        position: fixed;
        top: 4rem;
        left: 0;
        right: 0;
        max-height: calc(100vh - 4rem);
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .nav-menu li {
        width: 100%;
        border-bottom: 1px solid var(--color-border);
    }
    
    .nav-menu a {
        display: block;
        width: 100%;
        padding: 1rem 1.5rem;
        text-align: left;
    }
    
    /* Improved chart responsiveness */
    .chart-container,
    .homepage-chart-container {
        height: 250px !important;
        min-height: 250px;
    }
    
    .homepage-preview-container {
        height: 200px !important;
    }
    
    /* Better card spacing */
    .card {
        margin-bottom: 1rem;
        border-radius: 0.5rem;
    }
    
    .card-header,
    .card-body {
        padding: 1rem;
    }
    
    /* Improved stats cards for mobile */
    .stats-grid {
        gap: 0.75rem;
        margin-bottom: 1rem;
    }
    
    .stat-card {
        padding: 1.25rem 1rem;
    }
    
    .stat-number {
        font-size: 1.75rem;
        margin-bottom: 0.25rem;
    }
    
    .stat-label {
        font-size: 0.8rem;
    }
    
    .stat-sublabel,
    .stat-detail {
        font-size: 0.7rem;
    }
    
    /* Page header mobile optimization */
    .page-header {
        padding: 1rem;
        margin-bottom: 1rem;
    }
    
    .page-header h1 {
        font-size: 1.75rem;
    }
    
    .page-header .display-4 {
        font-size: 1.75rem;
    }
    
    .page-header small {
        font-size: 0.85rem;
        line-height: 1.4;
    }
    
    /* Better form controls */
    input[type="checkbox"],
    input[type="radio"] {
        transform: scale(1.2);
    }
    
    /* Improved footer for mobile */
    .footer {
        padding: 1.5rem 0;
        font-size: 0.8rem;
    }
    
    .footer > div > div {
        flex-direction: column;
        gap: 1rem;
        text-align: center !important;
    }
    
    .footer > div > div > div {
        text-align: center !important;
    }
    
    /* Export and control buttons */
    .export-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .export-buttons .btn {
        width: 100%;
        margin-bottom: 0.5rem;
    }
    
    /* Insight cards mobile layout */
    .insight-card {
        flex-direction: column;
        text-align: center;
        padding: 1rem;
    }
    
    .insight-icon {
        margin-right: 0;
        margin-bottom: 0.5rem;
    }
    
    /* Better viz card headers */
    .viz-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    /* Improved homepage sections */
    .homepage-chart-section,
    .homepage-preview-section {
        padding: 0;
    }
    
    .homepage-chart-card {
        margin-bottom: 1rem;
        border-radius: 0.5rem;
    }
    
    .homepage-chart-header,
    .homepage-chart-body {
        padding: 1rem;
    }
    
    .homepage-chart-title {
        font-size: 1.1rem;
    }
    
    .homepage-chart-subtitle {
        font-size: 0.8rem;
    }
    
    /* Mobile table scroll indicator */
    .table-container::after {
        content: '← Scroll to view more →';
        display: block;
        text-align: center;
        padding: 0.5rem;
        background: var(--color-bg-secondary);
        color: var(--color-text-secondary);
        font-size: 0.75rem;
        border-top: 1px solid var(--color-border);
    }
}

/* Extra small devices (320px - 480px) */
@media (max-width: 480px) {
    /* Even more compact layouts */
    body {
        font-size: 14px;
    }
    
    .container {
        padding: 0 0.75rem;
    }
    
    /* Single column year grid */
    .year-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    /* Smaller headings */
    h1, .display-4 {
        font-size: 1.5rem !important;
    }
    
    h2 {
        font-size: 1.25rem;
    }
    
    h3 {
        font-size: 1.1rem;
    }
    
    /* Ultra-compact stats */
    .stat-number {
        font-size: 1.5rem;
    }
    
    .stat-label {
        font-size: 0.75rem;
    }
    
    /* Smaller charts */
    .chart-container,
    .homepage-chart-container {
        height: 200px !important;
    }
    
    .homepage-preview-container {
        height: 180px !important;
    }
    
    /* Stack button groups vertically */
    .quick-select-buttons {
        grid-template-columns: 1fr;
    }
    
    /* Compact cards */
    .card {
        padding: 0.75rem;
    }
    
    .card-header,
    .card-body {
        padding: 0.75rem;
    }
    
    /* Smaller navigation */
    .nav-container {
        padding: 0.5rem 0.75rem;
    }
    
    .logo {
        font-size: 1rem;
    }
    
    /* Better logo and text layout */
    .page-header .btn {
        font-size: 0.75rem;
        padding: 0.5rem 0.75rem;
    }
}

/* Landscape mobile devices */
@media (max-width: 900px) and (orientation: landscape) {
    .chart-container,
    .homepage-chart-container {
        height: 200px !important;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .page-header {
        padding: 0.75rem 1rem;
    }
    
    .page-header h1 {
        font-size: 1.5rem;
    }
}

/* Tablet devices (768px - 1024px) */
@media (min-width: 769px) and (max-width: 1024px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .year-grid {
        grid-template-columns: repeat(6, 1fr);
    }
    
    .container {
        padding: 0 1.5rem;
    }
    
    .chart-container {
        height: 350px;
    }
}

/* Mobile table scroll shadows */
.table-container {
    position: relative;
}

.table-container.scrolled-left::before,
.table-container.scrolled-right::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 20px;
    pointer-events: none;
    z-index: 2;
}

.table-container.scrolled-left::before {
    left: 0;
    background: linear-gradient(to right, rgba(0,0,0,0.1), transparent);
}

.table-container.scrolled-right::after {
    right: 0;
    background: linear-gradient(to left, rgba(0,0,0,0.1), transparent);
}

/* Mobile viewport height fix for iOS */
@supports (-webkit-touch-callout: none) {
    .chart-container,
    .homepage-chart-container {
        min-height: -webkit-fill-available;
    }
}

/* Improved touch scrolling for all mobile devices */
* {
    -webkit-overflow-scrolling: touch;
}

/* Prevent zoom on input focus (mobile Safari) */
@media (max-width: 768px) {
    input[type="text"],
    input[type="email"],
    input[type="search"],
    select,
    textarea {
        font-size: 16px !important;
    }
}

/* Mobile-friendly hover states (disable on touch devices) */
@media (hover: none) and (pointer: coarse) {
    .card:hover,
    .stat-card:hover,
    .viz-card:hover {
        transform: none;
        box-shadow: var(--box-shadow);
    }
    
    .nav-menu a:hover {
        background-color: transparent;
    }
}

/* Safe area insets for notched devices (iPhone X+) */
@supports (padding: max(0px)) {
    body {
        padding-left: max(0px, env(safe-area-inset-left));
        padding-right: max(0px, env(safe-area-inset-right));
    }
    
    .header {
        padding-left: max(0px, env(safe-area-inset-left));
        padding-right: max(0px, env(safe-area-inset-right));
    }
    
    .footer {
        padding-left: max(0px, env(safe-area-inset-left));
        padding-right: max(0px, env(safe-area-inset-right));
        padding-bottom: max(1.5rem, env(safe-area-inset-bottom));
    }
}

/* Skeleton loading animations */
@keyframes skeleton-pulse {
    0% { opacity: 0.6; }
    50% { opacity: 0.3; }
    100% { opacity: 0.6; }
}

.skeleton {
    background: var(--color-border);
    border-radius: 4px;
    animation: skeleton-pulse 1.5s ease-in-out infinite;
    display: inline-block;
}

.skeleton-number {
    width: 5rem;
    height: 2rem;
    margin: 0 auto;
}

.skeleton-text {
    width: 6rem;
    height: 0.875rem;
    margin: 0.25rem auto 0;
}

.skeleton-chart {
    width: 100%;
    height: 100%;
    min-height: 200px;
    border-radius: var(--border-radius);
}

/* Chart export controls */
.chart-export-controls {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    display: flex;
    gap: 0.25rem;
    opacity: 0;
    transition: opacity 0.2s ease;
    z-index: 10;
}

.homepage-chart-card:hover .chart-export-controls,
.card:hover .chart-export-controls,
.homepage-chart-card:focus-within .chart-export-controls,
.card:focus-within .chart-export-controls {
    opacity: 1;
}

@media (hover: none) {
    .chart-export-controls {
        opacity: 1;
    }
}

.chart-export-btn {
    background: var(--color-bg-content);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    padding: 0.25rem 0.5rem;
    font-size: 0.7rem;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all 0.15s ease;
    line-height: 1;
}

.chart-export-btn:hover {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

/* Skip to content link (accessibility) */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--color-primary);
    color: white;
    padding: 0.5rem 1rem;
    z-index: 10000;
    transition: top 0.2s;
}
.skip-link:focus {
    top: 0;
}

/* Print styles */
@media print {

    /* Page margins */
    @page {
        margin: 1.5cm;
    }

    /* 1. Hide non-essential UI elements */
    .header,
    .footer,
    .nav-toggle,
    .btn,
    button,
    .theme-toggle,
    .chart-export-controls,
    .quick-select-buttons,
    .export-buttons,
    .homepage-chart-footer,
    .page-header .btn,
    .whats-new-banner {
        display: none !important;
    }

    /* 2. Force white backgrounds (override dark mode) */
    body,
    .card,
    .stat-card,
    .stat-cards,
    .page-header,
    .container,
    [data-theme="dark"] body,
    [data-theme="dark"] .card,
    [data-theme="dark"] .stat-card,
    [data-theme="dark"] .stat-cards,
    [data-theme="dark"] .page-header {
        background: #ffffff !important;
        background-color: #ffffff !important;
    }

    /* 3. Force dark text color for readability */
    body,
    p,
    span,
    h1, h2, h3, h4, h5, h6,
    a,
    td, th,
    label,
    .stat-card,
    .stat-card *,
    .card *,
    .page-header *,
    [data-theme="dark"] body,
    [data-theme="dark"] p,
    [data-theme="dark"] span,
    [data-theme="dark"] h1,
    [data-theme="dark"] h2,
    [data-theme="dark"] h3,
    [data-theme="dark"] h4,
    [data-theme="dark"] h5,
    [data-theme="dark"] h6,
    [data-theme="dark"] a,
    [data-theme="dark"] td,
    [data-theme="dark"] th,
    [data-theme="dark"] label,
    [data-theme="dark"] .stat-card,
    [data-theme="dark"] .stat-card *,
    [data-theme="dark"] .card *,
    [data-theme="dark"] .page-header * {
        color: #212529 !important;
    }

    /* 4. Remove box shadows and border-radius for clean printing */
    *,
    *::before,
    *::after {
        box-shadow: none !important;
        text-shadow: none !important;
    }

    .card,
    .stat-card,
    .page-header {
        border-radius: 0 !important;
        border: 1px solid #dee2e6 !important;
    }

    /* Remove pseudo-element decorations */
    .stat-card::before,
    .page-header::before {
        display: none !important;
    }

    /* 5. Make charts display at full width */
    .container {
        max-width: 100% !important;
        width: 100% !important;
        padding: 0 !important;
    }

    .chart-container,
    .chart-wrapper,
    canvas {
        width: 100% !important;
        max-width: 100% !important;
    }

    /* 6. Ensure tables print with borders and don't break across pages */
    table {
        border-collapse: collapse !important;
        width: 100% !important;
    }

    th, td {
        border: 1px solid #dee2e6 !important;
        padding: 6px 8px !important;
    }

    thead {
        display: table-header-group !important;
    }

    tr {
        page-break-inside: avoid !important;
        break-inside: avoid !important;
    }

    .card {
        break-inside: avoid;
        page-break-inside: avoid;
    }

    /* 7. Remove hover effects and transitions */
    *,
    *::before,
    *::after {
        transition: none !important;
        animation: none !important;
    }

    .stat-card:hover,
    .card:hover,
    a:hover {
        transform: none !important;
        opacity: 1 !important;
    }

    /* Print links with their URLs */
    a[href^="http"]::after {
        content: " (" attr(href) ")";
        font-size: 0.8em;
        color: #6c757d !important;
        word-break: break-all;
    }

    /* Prevent nav links from printing URLs */
    .header a::after,
    .footer a::after {
        content: none !important;
    }

}