/* ===================================
   Global Innovation Index 2025 Styles
   =================================== */

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

:root {
    /* Colors */
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --secondary-color: #10b981;
    --success-color: #22c55e;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    
    /* Neutral Colors */
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Innovation Theme Colors */
    --innovation-blue: #0ea5e9;
    --innovation-green: #059669;
    --innovation-purple: #8b5cf6;
    --innovation-orange: #f97316;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 200ms ease-in-out;
    --transition-slow: 300ms ease-in-out;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
        'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--gray-100) 100%);
    color: var(--gray-800);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* ===================================
   Header
   =================================== */
.header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: var(--spacing-xl) 0;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 400px;
    height: 400px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    50% { transform: translate(-30px, -30px) rotate(180deg); }
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    z-index: 1;
}

.main-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-xs);
    letter-spacing: -0.02em;
}

.subtitle {
    font-size: 1.125rem;
    opacity: 0.9;
    font-weight: 300;
}

/* ===================================
   Navigation
   =================================== */
.navigation {
    background: white;
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 3px solid var(--primary-color);
}

.nav-list {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    padding: 0;
    margin: 0;
    overflow-x: auto;
}

.nav-link {
    display: block;
    padding: var(--spacing-lg) var(--spacing-xl);
    color: var(--gray-700);
    text-decoration: none;
    font-weight: 500;
    transition: all var(--transition-base);
    border-bottom: 3px solid transparent;
    white-space: nowrap;
}

.nav-link:hover {
    color: var(--primary-color);
    background: var(--gray-50);
}

.nav-link.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
    background: var(--gray-50);
}

/* ===================================
   Main Content
   =================================== */
.main-content {
    padding: var(--spacing-2xl) 0;
    min-height: 70vh;
}

.section {
    display: none;
    animation: fadeIn 0.3s ease-in-out;
}

.section.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-title {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-md);
}

.section-description {
    font-size: 1.125rem;
    color: var(--gray-600);
    max-width: 700px;
    margin: 0 auto;
}

/* ===================================
   Statistics Cards
   =================================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.stat-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    border: 2px solid transparent;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.stat-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray-600);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

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

.chart-container {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

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

.chart-container.full-width {
    grid-column: 1 / -1;
    margin-bottom: var(--spacing-2xl);
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.chart-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-900);
}

/* ===================================
   Buttons
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
}

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

.btn-primary:hover {
    background: var(--gray-100);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--gray-200);
    color: var(--gray-700);
}

.btn-secondary:hover {
    background: var(--gray-300);
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-icon {
    background: transparent;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    color: var(--gray-500);
    transition: all var(--transition-base);
    border-radius: var(--radius-md);
}

.btn-icon:hover {
    background: var(--gray-100);
    color: var(--primary-color);
}

.icon {
    width: 20px;
    height: 20px;
}

/* ===================================
   Filters Panel
   =================================== */
.filters-panel {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
    box-shadow: var(--shadow-md);
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    align-items: end;
}

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

.filter-group label {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--gray-700);
}

.filter-select,
.filter-input {
    padding: 0.75rem;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: all var(--transition-base);
    background: white;
}

.filter-select:focus,
.filter-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* ===================================
   Table
   =================================== */
.table-wrapper {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    overflow-x: auto;
}

.table-actions {
    display: flex;
    justify-content: flex-end;
    margin-bottom: var(--spacing-lg);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9375rem;
}

.data-table thead {
    background: var(--gray-50);
}

.data-table th {
    padding: var(--spacing-md);
    text-align: left;
    font-weight: 600;
    color: var(--gray-700);
    border-bottom: 2px solid var(--gray-200);
    white-space: nowrap;
}

.data-table td {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--gray-200);
}

.data-table tbody tr {
    transition: background var(--transition-fast);
}

.data-table tbody tr:hover {
    background: var(--gray-50);
}

.rank-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    font-weight: 700;
    font-size: 0.875rem;
}

.rank-badge.top-3 {
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    color: white;
}

.rank-badge.top-10 {
    background: var(--gray-200);
    color: var(--gray-700);
}

.rank-badge.default {
    background: var(--gray-100);
    color: var(--gray-600);
}

.country-link {
    color: var(--primary-color);
    text-decoration: none;
    transition: all var(--transition-base);
    border-bottom: 1px solid transparent;
}

.country-link:hover {
    color: var(--primary-dark);
    border-bottom-color: var(--primary-dark);
}

/* ===================================
   Comparison Section
   =================================== */
.comparison-selector {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
    box-shadow: var(--shadow-md);
}

.selector-group label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--gray-700);
}

.country-chips {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.country-chip {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.5rem 1rem;
    background: var(--primary-color);
    color: white;
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
}

.country-chip:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.country-chip.inactive {
    background: var(--gray-200);
    color: var(--gray-600);
}

.country-chip.inactive:hover {
    background: var(--gray-300);
}

.country-chip .remove-btn {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    line-height: 1;
    transition: background var(--transition-fast);
}

.country-chip .remove-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* ===================================
   Map
   =================================== */
.map-container {
    position: relative;
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-2xl);
}

.world-map {
    height: 600px;
    min-height: 600px;
    width: 100%;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--gray-100);
    position: relative;
}

.map-legend {
    position: absolute;
    bottom: 30px;
    right: 30px;
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    min-width: 200px;
}

.map-legend h4 {
    margin-bottom: var(--spacing-md);
    color: var(--gray-900);
    font-size: 0.875rem;
    font-weight: 600;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    font-size: 0.8125rem;
}

.legend-color {
    width: 24px;
    height: 16px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(0, 0, 0, 0.1);
}

/* ===================================
   Insights Grid
   =================================== */
.insights-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.insight-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    border-left: 4px solid var(--primary-color);
}

.insight-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.insight-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.insight-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-md);
}

.insight-card p {
    color: var(--gray-600);
    line-height: 1.6;
}

/* ===================================
   Data Source
   =================================== */
.data-source {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
}

.data-source h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-md);
}

.data-source ul {
    list-style: none;
    padding: 0;
}

.data-source li {
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--gray-100);
}

.data-source li:last-child {
    border-bottom: none;
}

.data-source a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-base);
}

.data-source a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* ===================================
   Modal
   =================================== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
}

.modal.active {
    display: flex;
}

.modal-content {
    background: white;
    border-radius: var(--radius-xl);
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-xl);
    border-bottom: 1px solid var(--gray-200);
}

.modal-header h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--gray-900);
}

.modal-close {
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--gray-400);
    cursor: pointer;
    transition: color var(--transition-base);
    line-height: 1;
}

.modal-close:hover {
    color: var(--gray-600);
}

.modal-body {
    padding: var(--spacing-xl);
}

.download-options {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.download-option {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--gray-50);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
}

.download-option:hover {
    background: white;
    border-color: var(--primary-color);
    transform: translateX(5px);
}

.download-option .icon {
    width: 32px;
    height: 32px;
    color: var(--primary-color);
}

.download-option div {
    flex: 1;
    text-align: left;
}

.download-option strong {
    display: block;
    font-size: 1rem;
    color: var(--gray-900);
    margin-bottom: var(--spacing-xs);
}

.download-option span {
    font-size: 0.875rem;
    color: var(--gray-600);
}

/* ===================================
   Loading Spinner
   =================================== */
.loading-spinner {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.95);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.loading-spinner.active {
    display: flex;
}

.spinner {
    width: 64px;
    height: 64px;
    border: 4px solid var(--gray-200);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.loading-spinner p {
    font-size: 1.125rem;
    color: var(--gray-600);
    font-weight: 500;
}

/* ===================================
   Footer
   =================================== */
.footer {
    background: var(--gray-900);
    color: var(--gray-300);
    padding: var(--spacing-2xl) 0;
    margin-top: var(--spacing-2xl);
    text-align: center;
}

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

.footer a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-base);
}

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

.footer-credits {
    margin: var(--spacing-lg) 0;
}

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

.footer-links {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
}

.footer-links a {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(37, 99, 235, 0.1);
    border-radius: var(--radius-md);
    color: var(--primary-color);
    font-weight: 500;
    transition: all var(--transition-base);
}

.footer-links a:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.footer-links .icon {
    width: 18px;
    height: 18px;
}

/* ===================================
   Indicator Comparison Section
   =================================== */
.indicator-comparison-section {
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-2xl);
    border-top: 2px solid var(--gray-200);
}

.subsection-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-sm);
}

.subsection-description {
    font-size: 1rem;
    color: var(--gray-600);
    margin-bottom: var(--spacing-xl);
}

.indicator-selector {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-md);
}

.indicator-selector label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--gray-700);
}

.indicator-select {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: all var(--transition-base);
    background: white;
}

.indicator-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.indicator-details-table {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    margin-top: var(--spacing-xl);
    box-shadow: var(--shadow-md);
}

.indicator-details-table h4 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-lg);
}

.quick-comparison-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.quick-comparison-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    border-left: 4px solid var(--primary-color);
}

.quick-comparison-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.quick-comparison-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.quick-comparison-icon {
    font-size: 1.5rem;
}

.quick-comparison-name {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--gray-800);
}

.quick-comparison-values {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.quick-comparison-country {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm);
    background: var(--gray-50);
    border-radius: var(--radius-sm);
}

.quick-comparison-country-name {
    font-size: 0.875rem;
    color: var(--gray-700);
    font-weight: 500;
}

.quick-comparison-country-value {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--primary-color);
}

.trend-indicator {
    display: inline-flex;
    align-items: center;
    font-size: 1.25rem;
    margin-left: var(--spacing-xs);
}

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

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

.trend-stable {
    color: var(--gray-400);
}

/* ===================================
   Country Detail Page
   =================================== */
.country-detail-selector {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
    box-shadow: var(--shadow-md);
}

.country-detail-selector label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--gray-700);
    font-size: 1rem;
}

.country-detail-select {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: all var(--transition-base);
    background: white;
}

.country-detail-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.country-profile-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-lg);
    margin-bottom: var(--spacing-2xl);
}

.profile-header {
    display: flex;
    gap: var(--spacing-xl);
    align-items: center;
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-2xl);
    border-bottom: 2px solid var(--gray-200);
}

.profile-flag-icon {
    font-size: 5rem;
    display: block;
}

.profile-info h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-lg);
}

.profile-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-lg);
}

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

.profile-stat-label {
    font-size: 0.875rem;
    color: var(--gray-600);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.profile-stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.country-insights {
    margin-bottom: var(--spacing-2xl);
}

.country-insights h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-lg);
}

.insights-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
}

.insight-fact-card {
    background: linear-gradient(135deg, var(--gray-50) 0%, white 100%);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    border-left: 4px solid var(--primary-color);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.insight-fact-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.05) 0%, transparent 70%);
    border-radius: 50%;
}

.insight-fact-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.insight-fact-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.insight-fact-icon {
    font-size: 1.75rem;
}

.insight-fact-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-600);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.insight-fact-content {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--gray-800);
    position: relative;
    z-index: 1;
}

.insight-fact-highlight {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    display: block;
    margin: var(--spacing-sm) 0;
}

.indicator-categories {
    margin-bottom: var(--spacing-2xl);
}

.indicator-categories h3,
.trend-charts h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-lg);
}

#indicatorCategoriesContainer {
    display: grid;
    gap: var(--spacing-lg);
}

.indicator-category {
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    border-left: 4px solid var(--primary-color);
}

.indicator-category-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.indicator-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.indicator-item {
    background: white;
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.indicator-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.indicator-icon {
    font-size: 1.5rem;
}

.indicator-content {
    flex: 1;
}

.indicator-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: var(--spacing-xs);
}

.indicator-value {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--primary-color);
}

.indicator-unit {
    font-size: 0.8rem;
    color: var(--gray-500);
    margin-left: var(--spacing-xs);
}

.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-lg);
}

.trend-chart-wrapper {
    min-height: 320px;
}

.trend-chart-container {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.trend-chart-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-shrink: 0;
}

.trend-chart-canvas {
    height: 250px;
    width: 100%;
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 768px) {
    .main-title {
        font-size: 1.75rem;
    }
    
    .subtitle {
        font-size: 1rem;
    }
    
    .header-content {
        flex-direction: column;
        gap: var(--spacing-lg);
        text-align: center;
    }
    
    .charts-row {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .filters-panel {
        grid-template-columns: 1fr;
    }
    
    .insights-grid {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .world-map {
        height: 400px;
    }
    
    .map-legend {
        position: static;
        margin-top: var(--spacing-lg);
    }
    
    /* Country Detail Page Mobile */
    .charts-grid {
        grid-template-columns: 1fr;
    }
    
    .indicator-list {
        grid-template-columns: 1fr;
    }
    
    .profile-header {
        flex-direction: column;
        text-align: center;
    }
    
    .profile-stats {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .main-title {
        font-size: 1.5rem;
    }
    
    .nav-list {
        gap: 0;
    }
    
    .nav-link {
        padding: var(--spacing-md) var(--spacing-lg);
        font-size: 0.875rem;
    }
}

/* ===================================
   Print Styles
   =================================== */
@media print {
    .header,
    .navigation,
    .footer,
    .btn,
    .btn-icon,
    .download-chart,
    .filters-panel {
        display: none !important;
    }
    
    .section {
        display: block !important;
        page-break-before: always;
    }
    
    .chart-container,
    .stat-card,
    .insight-card {
        box-shadow: none;
        border: 1px solid var(--gray-200);
    }
}

/* ===================================
   Accessibility
   =================================== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus Visible for Keyboard Navigation */
*:focus-visible {
    outline: 3px solid var(--primary-color);
    outline-offset: 2px;
}

/* Screen Reader Only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}