/* CSS Variables - Light Mode (Default) */
:root {
    --primary-color: #1a73e8;
    --primary-dark: #1557b0;
    --primary-light: #60a5fa;
    --background-body: #f1f5f9;
    --background-white: #ffffff;
    --background-light: #f8fafc;
    --text-dark: #1e293b;
    --text-light: #64748b;
    --text-muted: #94a3b8;
    --text-white: #ffffff;
    --card-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    --card-shadow-hover: 0 8px 25px rgba(0, 0, 0, 0.12);
    --border-color: #e2e8f0;
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --chart-grid: rgba(0, 0, 0, 0.06);
    --tooltip-bg: rgba(15, 23, 42, 0.9);
    --positive-color: #10b981;
    --negative-color: #ef4444;
    --amber-color: #f59e0b;
    --purple-color: #a78bfa;
    --transition: all 0.3s ease;
}

/* Dark Mode */
[data-theme="dark"] {
    --primary-color: #3b82f6;
    --primary-dark: #2563eb;
    --primary-light: #60a5fa;
    --background-body: #020617;
    --background-white: #0f172a;
    --background-light: #1e293b;
    --text-dark: #f1f5f9;
    --text-light: #94a3b8;
    --text-muted: #64748b;
    --card-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    --card-shadow-hover: 0 8px 25px rgba(0, 0, 0, 0.4);
    --border-color: #334155;
    --chart-grid: rgba(255, 255, 255, 0.08);
    --tooltip-bg: rgba(30, 41, 59, 0.95);
    --positive-color: #34d399;
    --negative-color: #f87171;
}

/* Reset and Base */
html {
    scroll-behavior: smooth;
    scroll-padding-top: 56px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--background-body);
    color: var(--text-dark);
    line-height: 1.6;
    min-height: 100vh;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ============================================
   Theme Toggle
   ============================================ */
.theme-toggle {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    border-radius: 50%;
    width: 44px;
    height: 44px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.theme-toggle:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.05);
}

.theme-toggle svg {
    width: 22px;
    height: 22px;
    fill: var(--text-white);
}

.theme-toggle .sun-icon { display: none; }
.theme-toggle .moon-icon { display: block; }
[data-theme="dark"] .theme-toggle .sun-icon { display: block; }
[data-theme="dark"] .theme-toggle .moon-icon { display: none; }

/* ============================================
   Header
   ============================================ */
.header {
    background: linear-gradient(135deg, #0741AD 0%, #0a5dd4 100%);
    color: var(--text-white);
    padding: 24px 20px 20px;
    margin: 0 0 8px;
    border-radius: var(--border-radius);
    text-align: center;
    position: relative;
}

[data-theme="dark"] .header {
    background: linear-gradient(135deg, #1e3a5f 0%, #0f172a 100%);
}

.header h1 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.header .subtitle {
    font-size: 0.9rem;
    opacity: 0.8;
    font-weight: 400;
    margin-bottom: 10px;
}

.header-source {
    font-size: 0.7rem;
    opacity: 0.5;
    margin-top: 8px;
}

.header-source-link {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: underline;
    text-underline-offset: 2px;
}
.header-source-link:hover {
    color: #fff;
}

/* Header Pill Badges */
.header-pills {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 12px;
    flex-wrap: wrap;
}
.header-pill {
    display: inline-block;
    background: rgba(255, 255, 255, 0.15);
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.72rem;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 20px;
    white-space: nowrap;
}

/* ============================================
   Section Navigation (Sticky)
   ============================================ */
.section-nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--background-white);
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 24px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    border-radius: var(--border-radius-sm);
    transition: background-color 0.3s ease;
}

[data-theme="dark"] .section-nav {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.section-nav-inner {
    display: flex;
    align-items: center;
    gap: 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

.section-nav-inner::-webkit-scrollbar { display: none; }

.nav-link {
    padding: 12px 18px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-light);
    text-decoration: none;
    border-bottom: 2px solid transparent;
    white-space: nowrap;
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--text-dark);
}

.nav-link.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
    font-weight: 600;
}

/* ============================================
   Card Base
   ============================================ */
.card {
    background: var(--background-white);
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
    transition: var(--transition);
    border: 1px solid transparent;
}

.card:hover {
    box-shadow: var(--card-shadow-hover);
    transform: translateY(-1px);
}

[data-theme="dark"] .card {
    border-color: var(--border-color);
}

/* ============================================
   Summary Cards
   ============================================ */
.summary-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 24px;
}

.summary-card {
    padding: 24px;
    text-align: center;
    overflow: hidden;
}

.card-label {
    font-size: 0.8rem;
    color: var(--text-light);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.card-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-dark);
    min-height: 2.25rem;
}

.card-sub {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 6px;
}

.val-green { color: var(--positive-color); }
.val-blue { color: var(--primary-color); }
.val-purple { color: var(--purple-color); }
.val-amber { color: var(--amber-color); }

/* ============================================
   Buttons
   ============================================ */
.btn {
    padding: 8px 16px;
    border: 2px solid var(--border-color);
    background: var(--background-white);
    border-radius: var(--border-radius-sm);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-dark);
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
}

.btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

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

.btn-small {
    padding: 6px 12px;
    font-size: 0.75rem;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
}

.button-group {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    align-items: center;
}

.chart-controls {
    display: flex;
    gap: 20px;
    align-items: flex-end;
    flex-wrap: wrap;
}

.chart-control-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.chart-control-group .panel-heading {
    margin-bottom: 0;
}

.chart-control-actions {
    margin-left: auto;
}

/* ============================================
   Info Tooltip
   ============================================ */
.info-tooltip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 15px;
    height: 15px;
    background: var(--text-muted);
    color: var(--background-white);
    border-radius: 50%;
    font-size: 0.55rem;
    font-weight: 700;
    font-style: italic;
    cursor: help;
    position: relative;
    flex-shrink: 0;
}

.info-tooltip:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--tooltip-bg);
    color: var(--text-white);
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 0.7rem;
    font-style: normal;
    font-weight: 400;
    white-space: normal;
    max-width: 220px;
    width: max-content;
    text-align: center;
    z-index: 200;
    pointer-events: none;
    line-height: 1.4;
}

/* ============================================
   Loading Placeholder (Skeleton)
   ============================================ */
.loading-placeholder {
    display: block;
    height: 28px;
    width: 60%;
    margin: 0 auto;
    background: linear-gradient(90deg, var(--background-light) 25%, var(--border-color) 50%, var(--background-light) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: 6px;
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* ============================================
   Chart Section
   ============================================ */
.chart-section {
    margin-bottom: 24px;
}

.chart-card {
    padding: 24px;
}

.chart-header {
    display: flex;
    flex-direction: column;
    margin-bottom: 16px;
    gap: 12px;
}

.chart-title-row {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.chart-title-row h2 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-dark);
}

/* Compare Year Selectors */
.compare-year-selectors {
    display: flex;
    align-items: center;
    gap: 8px;
}

.compare-vs {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* System Selector */
.system-select {
    font-family: inherit;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-dark);
    background: var(--background-white);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 8px 32px 8px 12px;
    height: 44px;
    cursor: pointer;
    transition: var(--transition);
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    min-width: 200px;
}

.system-select:hover {
    border-color: var(--primary-color);
}

.system-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.system-select optgroup {
    font-weight: 700;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    padding: 4px 0;
}

.system-select optgroup option {
    font-weight: 500;
    font-size: 0.95rem;
    text-transform: none;
    letter-spacing: normal;
    color: var(--text-dark);
    padding: 4px 8px;
}

[data-theme="dark"] .system-select,
[data-theme="dark"] .year-select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
}

.year-select {
    font-family: inherit;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-dark);
    background: var(--background-white);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 8px 32px 8px 12px;
    height: 44px;
    cursor: pointer;
    transition: var(--transition);
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 8px center;
}

.year-select:hover { border-color: var(--primary-color); }
.year-select:focus { outline: none; border-color: var(--primary-color); box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15); }

/* Panel Headings */
.panel-heading {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 8px;
}

/* System Info Tags */
.system-info {
    margin-bottom: 12px;
}

.info-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.info-tag {
    padding: 3px 10px;
    border-radius: 9999px;
    font-size: 0.7rem;
    font-weight: 500;
    background: var(--background-light);
    color: var(--text-muted);
}
.info-tag-fy {
    background: #fef3c7;
    color: #92400e;
}

/* System Description (below chart) */
.fx-rate-note {
    font-size: 0.7rem;
    color: var(--text-muted);
    font-style: italic;
    margin: 8px 0 0;
    padding: 0;
}

.system-description {
    padding: 16px 0 0;
    border-top: 1px solid var(--border-color);
    margin-top: 16px;
}

.info-description {
    font-size: 0.8rem;
    color: var(--text-light);
    margin: 0;
    line-height: 1.5;
}


.chart-container {
    position: relative;
    height: 350px;
}

.chart-loading {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--background-white);
    border-radius: var(--border-radius);
    z-index: 5;
}

.chart-loading p {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-top: 12px;
}

.spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Compare Systems (inline in title row) */
.compare-systems-note {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    background: rgba(59, 130, 246, 0.1);
    padding: 4px 10px;
    border-radius: 6px;
    white-space: nowrap;
    margin-top: 4px;
}

.compare-inline-vs {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    padding: 0 2px;
}

.compare-system-select {
    min-width: 0;
    max-width: 340px;
    flex: 1;
}

.compare-flip-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.75rem;
    padding: 6px 10px;
    height: 44px;
}

.compare-flip-btn svg {
    flex-shrink: 0;
}

/* Compare Charts (side-by-side) */
.chart-compare {
    display: flex;
    gap: 16px;
}

.chart-compare-panel {
    flex: 1;
    min-width: 0;
}

.chart-compare-label {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-muted);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.compare-yoy {
    font-size: 0.7rem;
    font-weight: 600;
    opacity: 0.8;
    margin-left: 4px;
}

.chart-container-half {
    height: 350px;
}

/* ============================================
   Section Title Pattern
   ============================================ */
.section-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-dark);
}

/* ============================================
   Growth Leaders Section
   ============================================ */
.growth-section {
    margin-bottom: 24px;
}

.growth-header-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 12px;
}

.growth-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.growth-card {
    padding: 20px;
}

.growth-card-header {
    margin-bottom: 16px;
}

.growth-card-header h3 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-dark);
}

.growth-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
}

.growth-item:last-child {
    border-bottom: none;
}

.growth-item-left {
    display: flex;
    align-items: center;
    gap: 10px;
}

.growth-flag {
    font-size: 1.25rem;
}

.growth-name {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-dark);
}

.growth-country {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.growth-item-right {
    text-align: right;
}

.growth-value {
    font-size: 0.85rem;
    font-weight: 700;
}

.growth-change {
    font-size: 0.7rem;
    font-weight: 600;
}

.growth-positive { color: var(--positive-color); }
.growth-negative { color: var(--negative-color); }

/* ============================================
   Regional Breakdown Section
   ============================================ */
.regional-section {
    margin-bottom: 24px;
}

.regional-header-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 8px;
}

.regional-subtitle {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.regional-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.regional-chart-card {
    padding: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.regional-chart-container {
    position: relative;
    width: 100%;
    max-width: 320px;
    aspect-ratio: 1;
}

.regional-table-card {
    padding: 20px;
}

.regional-table-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.regional-table-header h3 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-dark);
}

.regional-table-note {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.region-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
}

.region-row:last-child { border-bottom: none; }

.region-row-left {
    display: flex;
    align-items: center;
    gap: 10px;
}

.region-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.region-label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-dark);
}

.region-row-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.region-volume {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-dark);
}

.region-percent {
    font-size: 0.75rem;
    color: var(--text-muted);
    min-width: 40px;
    text-align: right;
}

/* ============================================
   Systems Section
   ============================================ */
.systems-section {
    margin-bottom: 24px;
}

.systems-header-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.region-tabs {
    display: flex;
    gap: 6px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.region-count {
    display: inline-block;
    background: var(--background-light);
    border-radius: 9999px;
    padding: 1px 6px;
    font-size: 0.6rem;
    margin-left: 3px;
}

.systems-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 16px;
}

/* System Card */
.system-card {
    cursor: pointer;
    overflow: hidden;
    transition: var(--transition);
}

.system-card:hover {
    transform: translateY(-2px);
    border-color: var(--primary-color);
}

.system-card.selected {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 1px var(--primary-color), var(--card-shadow-hover);
}

.card-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 16px 20px 12px;
}

.card-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.card-flag { font-size: 1.75rem; }

.card-name {
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text-dark);
}

.card-country {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.card-badge {
    font-size: 0.55rem;
    padding: 3px 8px;
    border-radius: 9999px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge-monthly {
    background: rgba(16, 185, 129, 0.15);
    color: var(--positive-color);
}

.badge-annual {
    background: rgba(59, 130, 246, 0.15);
    color: var(--primary-color);
}

.card-stats { padding: 0 20px; }

.card-stat {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-top: 1px solid var(--border-color);
}

.card-stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.card-stat-value {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-dark);
}

.card-stat-value.large {
    font-size: 1.1rem;
    color: var(--positive-color);
}

.card-sparkline {
    padding: 8px 20px 12px;
    height: 56px;
}

/* ============================================
   Section Headers & Spacing
   ============================================ */
.section-header {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-dark);
    border-left: 3px solid #3b82f6;
    padding-left: 12px;
}

.section-header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 12px;
}

.section-header-row .section-header {
    margin-bottom: 0;
}

.infra-th-draggable {
    cursor: grab;
}

.infra-th-draggable.dragging {
    opacity: 0.4;
}

.infra-th-draggable.drag-over {
    border-left: 2px solid var(--primary-color);
}

.infra-th-active {
    color: var(--primary-color) !important;
}

.header-stats {
    font-size: 0.78rem;
    color: rgba(255, 255, 255, 0.85);
    font-weight: 400;
    line-height: 1.7;
}

.overview-section {
    margin-top: 32px;
}

/* ============================================
   Overview Section
   ============================================ */
.overview-section {
    margin-bottom: 24px;
}

.overview-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 24px;
}

.overview-stats-top {
    margin-bottom: 16px;
}

.overview-stat-card {
    padding: 12px 16px;
    text-align: center;
    display: flex;
    align-items: center;
    gap: 10px;
    justify-content: center;
}

.overview-stat-icon {
    font-size: 1.1rem;
    flex-shrink: 0;
}

.overview-stat-label {
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-muted);
}

.overview-stat-value {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-dark);
}

/* Flip card for stat cards */
.stat-flip-container {
    perspective: 600px;
    cursor: pointer;
    position: relative;
}

.stat-flip-container::after {
    content: 'Click for 2024';
    position: absolute;
    bottom: 2px;
    right: 6px;
    font-size: 0.5rem;
    color: var(--text-muted);
    opacity: 0;
    transition: opacity 0.2s;
    white-space: nowrap;
    pointer-events: none;
}

.stat-flip-container.flipped::after {
    content: 'Click for 2025';
}

.stat-flip-container:hover::after {
    opacity: 1;
}

.stat-flip-card {
    position: relative;
    transform-style: preserve-3d;
    transition: transform 0.5s ease;
    padding: 0 !important;
}

.stat-flip-container.flipped .stat-flip-card {
    transform: rotateX(180deg) !important;
}

.stat-flip-front,
.stat-flip-back {
    display: flex;
    align-items: center;
    gap: 10px;
    justify-content: center;
    padding: 12px 16px;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
}

.stat-flip-front {
    position: relative;
}

.stat-flip-back {
    position: absolute;
    inset: 0;
    transform: rotateX(180deg);
    background: var(--background-white);
    border-radius: inherit;
    display: flex;
    align-items: center;
    justify-content: center;
}

[data-theme="dark"] .stat-flip-back {
    background: var(--card-bg);
}

/* ============================================
   Footer
   ============================================ */
.footer {
    text-align: center;
    margin-top: 32px;
    padding: 24px 0;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.75rem;
    line-height: 1.8;
}

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

.footer a:hover { text-decoration: underline; }

.footer .last-updated {
    margin-top: 8px;
    font-size: 0.7rem;
}

.footer .disclaimer {
    margin-top: 16px;
    padding-top: 12px;
    border-top: 1px solid var(--border-color);
    font-size: 0.65rem;
    color: var(--text-muted);
    line-height: 1.5;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.share-section {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 12px;
}
.share-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.share-buttons {
    display: flex;
    gap: 6px;
}
.share-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: var(--background-white);
    color: var(--text-light);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    font-size: 0;
    padding: 0;
}
.share-btn:hover {
    background: var(--primary-color);
    color: var(--text-white);
    border-color: var(--primary-color);
    text-decoration: none;
}

/* ============================================
   Loading Container (initial full-page)
   ============================================ */
.loading-container {
    text-align: center;
    padding: 60px 20px;
}

.loading-text {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-top: 12px;
}

/* ============================================
   China Toggle
   ============================================ */
.china-toggle {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
    cursor: pointer;
    font-size: 0.8rem;
    color: var(--text-light);
    font-weight: 500;
    user-select: none;
}

.china-toggle input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
    accent-color: var(--primary-color);
}

/* ============================================
   Overview Sub-Headings
   ============================================ */
.overview-sub-heading {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-top: 32px;
    margin-bottom: 4px;
}

.overview-sub-desc {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 16px;
}

/* ============================================
   Infrastructure Matrix
   ============================================ */
.infra-legend {
    font-size: 0.72rem;
    color: var(--text-light);
    font-style: italic;
    opacity: 0.85;
    margin: -4px 0 4px;
}

.infra-definitions {
    font-size: 0.7rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin: 0 0 16px;
}

.infra-matrix-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    background: var(--background-white);
}

.infra-show-more {
    text-align: center;
    padding: 16px 0 4px;
}

.infra-matrix {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.8rem;
}

.infra-matrix thead {
    background: var(--background-light);
}

.infra-matrix th {
    padding: 10px 16px;
    text-align: center;
    font-weight: 600;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border-color);
}

.infra-matrix th:first-child {
    text-align: left;
}

.infra-matrix td {
    padding: 8px 16px;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.infra-matrix tbody tr:last-child td {
    border-bottom: none;
}

.infra-matrix tbody tr:hover {
    background: var(--background-light);
}

.infra-system {
    text-align: left !important;
    font-weight: 500;
    white-space: nowrap;
    color: var(--text-dark);
}

.infra-info-icon {
    display: inline-block;
    font-size: 0.65rem;
    color: var(--text-muted);
    cursor: help;
    vertical-align: middle;
    margin-left: 2px;
    opacity: 0.6;
}

.infra-info-icon:hover {
    opacity: 1;
}

.infra-tooltip {
    position: fixed;
    background: #0f172a;
    color: #fff;
    padding: 6px 10px;
    border-radius: 6px;
    font-size: 0.7rem;
    font-weight: 400;
    white-space: nowrap;
    z-index: 9999;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
    pointer-events: none;
}

.infra-yes {
    color: var(--positive-color);
    font-weight: 700;
    font-size: 0.9rem;
}

.infra-partial {
    color: #e69500;
    font-weight: 700;
    font-size: 0.9rem;
}

.infra-no {
    color: var(--text-muted);
    font-size: 0.75rem;
}

/* ============================================
   Compare Systems Table
   ============================================ */
.compare-section {
    margin-top: 32px;
}

.compare-card {
    padding: 24px;
}

.compare-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 12px;
}

.compare-header-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.compare-table th {
    white-space: nowrap;
}

.compare-th-sortable {
    cursor: pointer;
    user-select: none;
    transition: opacity 0.15s, border-color 0.15s;
    border-left: 2px solid transparent;
    border-right: 2px solid transparent;
}

.compare-th-sortable[draggable="true"] {
    cursor: grab;
}

.compare-th-sortable:hover {
    color: var(--text-dark);
}

.compare-th-sortable.dragging {
    opacity: 0.3;
}

.compare-th-sortable.drag-over-left {
    border-left: 2px solid var(--primary-color);
}

.compare-th-sortable.drag-over-right {
    border-right: 2px solid var(--primary-color);
}

.compare-th-sortable.sort-active {
    color: var(--primary-color);
}

.sort-arrow {
    font-size: 0.6rem;
    opacity: 0.7;
}

.compare-row {
    cursor: pointer;
    transition: background-color 0.15s;
}

.compare-row:hover {
    background-color: var(--background-light);
}

.compare-row-highlighted {
    background-color: rgba(59, 130, 246, 0.08) !important;
    border-left: 3px solid var(--primary-color);
}

.drag-over-top {
    border-top: 2px solid var(--primary-color);
}

.drag-over-bottom {
    border-bottom: 2px solid var(--primary-color);
}

td.compare-metric-drag {
    cursor: grab;
    transition: color 0.15s, background-color 0.15s;
    user-select: none;
    color: var(--text-muted);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: var(--background-light) !important;
}

.compare-metric-drag:hover {
    color: var(--primary-color);
    background-color: rgba(59, 130, 246, 0.08);
}

#compareTableBody tr[draggable].dragging {
    opacity: 0.3;
}


.compare-rank-col {
    color: var(--text-muted);
    font-size: 0.7rem;
    text-align: center;
    width: 30px;
    min-width: 30px;
}

.compare-system-name {
    cursor: pointer;
    transition: color 0.15s;
}

.compare-system-name:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

.compare-header-right {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.download-group {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.compare-sort-hint {
    font-size: 0.72rem;
    color: var(--text-light);
    font-style: italic;
    opacity: 0.85;
}

.compare-show-more-row td {
    text-align: center;
    padding: 16px 0 4px;
    border-top: 1px solid var(--border-color);
}

.compare-yoy-positive { color: var(--positive-color); }
.compare-yoy-negative { color: var(--negative-color); }
.compare-yoy-neutral { color: var(--text-muted); }

/* Compare Search */
.compare-search-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.compare-search-icon {
    position: absolute;
    left: 10px;
    color: var(--text-muted);
    pointer-events: none;
}

.compare-search-input {
    font-family: inherit;
    font-size: 0.8rem;
    padding: 6px 30px 6px 32px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    background: var(--background-white);
    color: var(--text-dark);
    outline: none;
    width: 200px;
    transition: border-color 0.15s, box-shadow 0.15s;
}

.compare-search-input::placeholder {
    color: var(--text-muted);
}

.compare-search-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.compare-search-clear {
    position: absolute;
    right: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    border: none;
    background: var(--background-light);
    color: var(--text-light);
    border-radius: 50%;
    cursor: pointer;
    font-size: 0.85rem;
    line-height: 1;
    padding: 0;
    transition: background-color 0.15s, color 0.15s;
}

.compare-search-clear:hover {
    background: var(--border-color);
    color: var(--text-dark);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 900px) {
    .summary-cards { grid-template-columns: repeat(2, 1fr); }
    .growth-grid { grid-template-columns: 1fr; }
    .regional-grid { grid-template-columns: 1fr; }
    .systems-grid { grid-template-columns: repeat(2, 1fr); }
    .header h1 { font-size: 1.75rem; }
    .chart-container { height: 260px; }
    .overview-stats { grid-template-columns: repeat(2, 1fr); }
    .compare-header { flex-direction: column; align-items: flex-start; }
    .compare-search-input { width: 100%; }
    .compare-table th, .compare-table td { padding: 8px 10px; font-size: 0.72rem; }
    .compare-th-sortable[draggable] { cursor: default; }
    /* Sticky first column on scroll */
    .compare-table th:first-child,
    .compare-table td:first-child {
        position: sticky;
        left: 0;
        z-index: 2;
        background: var(--background-white);
        box-shadow: 2px 0 4px rgba(0, 0, 0, 0.06);
    }
    [data-theme="dark"] .compare-table th:first-child,
    [data-theme="dark"] .compare-table td:first-child {
        background: var(--card-bg);
        box-shadow: 2px 0 4px rgba(0, 0, 0, 0.2);
    }
}

@media (max-width: 600px) {
    .container { padding: 0 12px; }
    .summary-cards { grid-template-columns: 1fr; }
    .systems-grid { grid-template-columns: 1fr; }

    /* Header: prevent theme toggle overlapping title */
    .header { padding: 20px 16px 16px; }
    .header h1 { font-size: 1.5rem; padding-right: 48px; }

    /* Chart & controls */
    .chart-container { height: 200px; }
    .chart-container-half { height: 200px; }
    .chart-compare { flex-direction: column; }
    .chart-controls { flex-direction: column; gap: 8px; align-items: flex-start; }
    .chart-control-actions { margin-left: 0; }
    .chart-control-group { align-items: flex-start; }
    .chart-title-row { flex-wrap: wrap; gap: 8px; }
    .system-select { min-width: 0; width: 100%; }

    /* Compare header: stack and left-align */
    .compare-header { flex-direction: column; align-items: flex-start; gap: 8px; }
    .compare-header-left { flex-direction: column; align-items: flex-start; gap: 4px; }
    .compare-header-right { width: 100%; flex-wrap: wrap; gap: 6px; }
    .compare-search-input { width: 100%; }

    /* Buttons: increase touch targets to 44px minimum */
    .btn-small { padding: 10px 14px; font-size: 0.8rem; min-height: 44px; }

    /* Navigation */
    .section-nav-inner { gap: 0; }
    .nav-link { padding: 12px 14px; font-size: 0.8rem; }

    /* Cards */
    .card-value { font-size: 1.5rem; }
    .summary-card { padding: 16px; }
    .overview-stats { grid-template-columns: 1fr; }

    /* Compare table: accessible font size + sticky column */
    .compare-table th, .compare-table td { padding: 8px 10px; font-size: 0.75rem; white-space: nowrap; }
    .compare-system-name { max-width: 100px; overflow: hidden; text-overflow: ellipsis; }
    .compare-table th:first-child,
    .compare-table td:first-child {
        position: sticky;
        left: 0;
        z-index: 2;
        background: var(--background-white);
        box-shadow: 2px 0 4px rgba(0, 0, 0, 0.06);
    }
    [data-theme="dark"] .compare-table th:first-child,
    [data-theme="dark"] .compare-table td:first-child {
        background: var(--card-bg);
        box-shadow: 2px 0 4px rgba(0, 0, 0, 0.2);
    }

    /* Embed modal: fix label overflow */
    .embed-systems-grid label { min-width: 0; flex: 1 1 45%; }
    .embed-columns-grid label { min-width: 0; flex: 1 1 45%; }
    .embed-modal-body { padding: 16px; }
}

/* ============================================
   Vendors Directory
   ============================================ */
.vendor-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 16px;
}

.vendor-filter-group {
    display: flex;
    align-items: center;
    gap: 6px;
}

.vendor-filter-label {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    white-space: nowrap;
}

.vendor-filter-select {
    font-family: inherit;
    font-size: 0.8rem;
    padding: 6px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    background: var(--background-white);
    color: var(--text-dark);
    outline: none;
    cursor: pointer;
}

.vendor-filter-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.vendor-category-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.vendor-category-pill {
    font-size: 0.7rem;
    padding: 4px 12px;
    border-radius: 9999px;
    cursor: pointer;
    border: 1px solid var(--border-color);
    background: var(--background-white);
    color: var(--text-light);
    transition: var(--transition);
    font-family: inherit;
    font-weight: 500;
}

.vendor-category-pill:hover {
    border-color: var(--text-muted);
}

.vendor-category-pill.active {
    color: white;
    border-color: transparent;
}

.vendor-search-wrapper {
    position: relative;
    flex: 1;
    min-width: 180px;
    max-width: 300px;
}

.vendor-search-input {
    width: 100%;
    padding: 6px 12px 6px 30px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: 0.8rem;
    font-family: inherit;
    background: var(--background-white);
    color: var(--text-dark);
    outline: none;
    box-sizing: border-box;
}

.vendor-search-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.vendor-search-icon {
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.75rem;
    color: var(--text-muted);
    pointer-events: none;
}

.vendor-results-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.vendor-clear-filters {
    color: var(--primary-color);
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
    font-size: 0.75rem;
    padding: 0;
}

.vendor-clear-filters:hover {
    text-decoration: underline;
}

.vendor-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 16px;
}

.vendor-card {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    transition: var(--transition);
    background: var(--background-white);
}

.vendor-card:hover {
    border-color: var(--primary-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.vendor-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 8px;
}

.vendor-card-name {
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text-dark);
}

.vendor-card-name a {
    color: inherit;
    text-decoration: none;
}

.vendor-card-name a:hover {
    color: var(--primary-color);
}

.vendor-card-hq {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.vendor-card-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    flex-shrink: 0;
}

.vendor-category-badge {
    font-size: 0.55rem;
    padding: 2px 8px;
    border-radius: 9999px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: white;
}

.vendor-card-desc {
    font-size: 0.8rem;
    color: var(--text-light);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.vendor-card-rails {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-top: auto;
    padding-top: 8px;
}

.vendor-rail-pill {
    font-size: 0.6rem;
    padding: 2px 7px;
    border-radius: 9999px;
    background: var(--background-light);
    color: var(--text-light);
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid var(--border-color);
    text-decoration: none;
    white-space: nowrap;
}

.vendor-rail-pill:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.vendor-show-more {
    text-align: center;
    padding: 16px 0 4px;
}

@media (max-width: 900px) {
    .vendor-filters { flex-direction: column; align-items: flex-start; }
    .vendor-search-wrapper { max-width: 100%; width: 100%; }
}

@media (max-width: 600px) {
    .vendor-grid { grid-template-columns: 1fr; }
    .vendor-filter-select { width: 100%; }
}

/* ============================================
   Facts & Figures Banner
   ============================================ */
.facts-banner {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    background: var(--background-light);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    margin-bottom: 8px;
    font-size: 0.82rem;
    color: var(--text-light);
    line-height: 1.4;
}

.facts-label {
    font-size: 0.6rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--primary-color);
    background: rgba(59, 130, 246, 0.1);
    padding: 3px 10px;
    border-radius: 9999px;
    white-space: nowrap;
    flex-shrink: 0;
}

.facts-text {
    flex: 1;
    transition: opacity 0.3s ease;
    white-space: pre-line;
}

.facts-text.fading {
    opacity: 0;
}

.facts-next {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 0.9rem;
    padding: 4px 8px;
    border-radius: var(--border-radius-sm);
    transition: color 0.15s, background-color 0.15s;
    flex-shrink: 0;
}

.facts-next:hover {
    color: var(--primary-color);
    background: rgba(59, 130, 246, 0.08);
}

@media (max-width: 600px) {
    .facts-banner { padding: 8px 12px; font-size: 0.75rem; }
}

/* ============================================
   Changelog
   ============================================ */
#changelogSection .card {
    transform: none;
}

#changelogSection .card:hover {
    transform: none;
    box-shadow: var(--card-shadow);
}

.changelog {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.changelog-entry {
    display: grid;
    grid-template-columns: auto auto 1fr;
    gap: 8px 16px;
    align-items: baseline;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.changelog-entry:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.changelog-version {
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--primary-color);
    background: rgba(59, 130, 246, 0.08);
    padding: 2px 10px;
    border-radius: 9999px;
    white-space: nowrap;
}

.changelog-date {
    font-size: 0.75rem;
    color: var(--text-muted);
    white-space: nowrap;
}

.changelog-details {
    grid-column: 1 / -1;
    font-size: 0.82rem;
    color: var(--text-light);
    line-height: 1.6;
}

.changelog-hidden {
    display: none;
}

.changelog.expanded .changelog-hidden {
    display: grid;
}

@media (max-width: 600px) {
    .changelog-entry {
        grid-template-columns: auto 1fr;
    }
    .changelog-date {
        text-align: right;
    }
}

/* ============================================
   Loading Skeleton
   ============================================ */
.skeleton-container {
    padding: 0;
}

.skeleton-line {
    background: linear-gradient(90deg, var(--border-color) 25%, var(--background-light) 50%, var(--border-color) 75%);
    background-size: 200% 100%;
    animation: skeleton-shimmer 1.5s ease-in-out infinite;
    border-radius: var(--border-radius-sm);
}

@keyframes skeleton-shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Scroll hint for horizontally scrollable tables */
.infra-matrix-wrapper {
    position: relative;
}
.infra-matrix-wrapper::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 30px;
    height: 100%;
    background: linear-gradient(to right, transparent, var(--background-white));
    pointer-events: none;
    opacity: 0.7;
}
[data-theme="dark"] .infra-matrix-wrapper::after {
    background: linear-gradient(to right, transparent, var(--card-bg));
}

/* Mobile scroll hint for tables */
@media (max-width: 900px) {
    .infra-matrix-wrapper::before {
        content: '← Scroll to see more →';
        display: block;
        text-align: center;
        font-size: 0.65rem;
        color: var(--text-muted);
        padding: 4px 0;
        letter-spacing: 0.02em;
    }
}

/* ============================================
   Embed Modal
   ============================================ */
.btn-embed {
    opacity: 0.7;
    transition: opacity 0.2s ease;
}
.btn-embed:hover {
    opacity: 1;
}

.embed-modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.embed-modal-overlay.active {
    display: flex;
}

.embed-modal {
    background: var(--background-white);
    border-radius: var(--border-radius);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    width: 100%;
    max-width: 680px;
    max-height: 90vh;
    overflow-y: auto;
    border: 1px solid var(--border-color);
}

.embed-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}

.embed-modal-header h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-dark);
    margin: 0;
}

.embed-modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0;
    line-height: 1;
    transition: color 0.2s ease;
}

.embed-modal-close:hover {
    color: var(--text-dark);
}

.embed-modal-body {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.embed-systems-grid, .embed-columns-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 6px 12px;
    max-height: 180px;
    overflow-y: auto;
    padding: 8px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    background: var(--background-light);
}

.embed-systems-grid label, .embed-columns-grid label {
    font-size: 0.75rem;
    display: flex;
    align-items: center;
    gap: 4px;
    cursor: pointer;
    white-space: nowrap;
}

.embed-systems-grid label { min-width: 140px; }
.embed-columns-grid label { min-width: 110px; }

.embed-label-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4px;
}

.btn-toggle-all {
    background: none;
    border: none;
    color: var(--primary-color);
    font-size: 0.7rem;
    font-weight: 600;
    cursor: pointer;
    padding: 2px 6px;
}
.btn-toggle-all:hover { text-decoration: underline; }

.embed-options {
    display: flex;
    gap: 12px;
}

.embed-option-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex: 1;
}

.embed-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.embed-select {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    background: var(--background-white);
    color: var(--text-dark);
    font-size: 0.85rem;
    font-family: inherit;
    cursor: pointer;
}

.embed-preview-container {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.embed-preview {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    overflow: hidden;
    background: #fff;
}

.embed-code-container {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.embed-code-wrapper {
    display: flex;
    gap: 8px;
    align-items: flex-start;
}

.embed-code {
    flex: 1;
    padding: 10px 12px;
    background: var(--background-light);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-family: 'SF Mono', 'Fira Code', 'Fira Mono', monospace;
    font-size: 0.72rem;
    color: var(--text-dark);
    word-break: break-all;
    line-height: 1.5;
    display: block;
    white-space: pre-wrap;
}

.embed-copy-btn {
    white-space: nowrap;
    flex-shrink: 0;
    align-self: center;
}

/* Section Dividers */
#compareSection,
#infraSection {
    border-top: 1px solid var(--border-color);
    padding-top: 24px;
}

/* Scroll Fade-in Animations */
.fade-in-section {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}
.fade-in-section.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Print styles */
@media print {
    .header { background: none !important; color: #000 !important; }
    .theme-toggle, .chart-controls, .chart-control-actions, .btn, .compare-sort-hint, .compare-search-wrapper { display: none !important; }
    .card { box-shadow: none; border: 1px solid #ddd; }
    .chart-container { height: 300px; }
    body { font-size: 11pt; }
    .embed-modal-overlay { display: none !important; }
}