:root {
    --primary: #0f172a;
    --primary-light: #1e293b;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --accent-glow: rgba(59, 130, 246, 0.15);
    --text: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --bg: #020617;
    --bg-elevated: #0f172a;
    --bg-card: #111827;
    --border: #1e293b;
    --border-light: #334155;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --radius: 12px;
    --radius-sm: 8px;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --max-width: 1200px;
    --nav-height: 64px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    background: rgba(2, 6, 23, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    z-index: 1000;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 6px;
}

.nav-logo {
    font-size: 20px;
    font-weight: 800;
    color: var(--text);
    letter-spacing: -0.5px;
}

.nav-badge {
    font-size: 11px;
    font-weight: 700;
    background: var(--accent);
    color: white;
    padding: 2px 6px;
    border-radius: 4px;
    letter-spacing: 0.5px;
}

.nav-links {
    display: flex;
    gap: 4px;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 13px;
    font-weight: 500;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    transition: all 0.2s;
}

.nav-links a:hover {
    color: var(--text);
    background: rgba(255,255,255,0.05);
}

.nav-links a.active {
    color: var(--text);
    background: rgba(255,255,255,0.08);
}

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

.status-badge {
    font-size: 11px;
    font-weight: 600;
    color: var(--warning);
    background: rgba(245, 158, 11, 0.1);
    padding: 4px 10px;
    border-radius: 20px;
    border: 1px solid rgba(245, 158, 11, 0.2);
}

/* Hero */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: calc(var(--nav-height) + 40px) 40px 40px;
    max-width: var(--max-width);
    margin: 0 auto;
    gap: 60px;
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.hero-badge {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    color: var(--accent);
    background: var(--accent-glow);
    padding: 6px 14px;
    border-radius: 20px;
    border: 1px solid rgba(59, 130, 246, 0.2);
    margin-bottom: 24px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.hero-title {
    font-size: 64px;
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -2px;
    margin-bottom: 24px;
}

.hero-title .highlight {
    background: linear-gradient(135deg, #3b82f6, #60a5fa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 32px;
    max-width: 500px;
}

.hero-cta {
    display: flex;
    gap: 12px;
}

.btn {
    display: inline-flex;
    align-items: center;
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s;
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
}

.btn-secondary {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border-light);
}

.btn-secondary:hover {
    background: rgba(255,255,255,0.05);
    border-color: var(--text-secondary);
}

/* Hero Visual - Orbital System */
.hero-visual {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.orbital-system {
    position: relative;
    width: 400px;
    height: 400px;
}

.orbital-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 60px rgba(59, 130, 246, 0.4);
    z-index: 10;
}

.center-text {
    font-size: 14px;
    font-weight: 800;
    color: white;
}

.orbital-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    border: 1px solid rgba(59, 130, 246, 0.15);
    border-radius: 50%;
    transform: translate(-50%, -50%);
}

.ring-1 { width: 140px; height: 140px; animation: orbit 12s linear infinite; }
.ring-2 { width: 200px; height: 200px; animation: orbit 18s linear infinite reverse; }
.ring-3 { width: 260px; height: 260px; animation: orbit 24s linear infinite; }
.ring-4 { width: 320px; height: 320px; animation: orbit 30s linear infinite reverse; }
.ring-5 { width: 380px; height: 380px; animation: orbit 36s linear infinite; }

.orbital-node {
    position: absolute;
    width: 36px;
    height: 36px;
    background: var(--bg-card);
    border: 1px solid var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 700;
    color: var(--accent);
    top: -18px;
    left: 50%;
    transform: translateX(-50%);
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.2);
}

.orbital-node::after {
    content: attr(data-label);
    position: absolute;
    top: -20px;
    font-size: 10px;
    color: var(--text-muted);
    white-space: nowrap;
}

@keyframes orbit {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* Metrics */
.metrics {
    padding: 80px 40px;
    max-width: var(--max-width);
    margin: 0 auto;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.metric {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    text-align: center;
    transition: border-color 0.2s;
}

.metric:hover {
    border-color: var(--border-light);
}

.metric-value {
    font-size: 40px;
    font-weight: 800;
    background: linear-gradient(135deg, #3b82f6, #60a5fa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.metric-label {
    font-size: 13px;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Sections */
.opportunity,
.comparison,
.roadmap,
.research-cta,
.content-section {
    padding: 80px 40px;
    max-width: var(--max-width);
    margin: 0 auto;
}

.section-header {
    margin-bottom: 48px;
}

.section-tag,
.page-tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 12px;
}

.section-header h2,
.page-header h1 {
    font-size: 36px;
    font-weight: 800;
    letter-spacing: -1px;
}

.page-header {
    padding: calc(var(--nav-height) + 60px) 40px 40px;
    max-width: var(--max-width);
    margin: 0 auto;
}

.page-header h1 {
    font-size: 48px;
    margin-bottom: 16px;
}

.page-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 600px;
}

/* Opportunity Cards */
.opportunity-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.opportunity-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    transition: border-color 0.2s;
}

.opportunity-card:hover {
    border-color: var(--border-light);
}

.card-icon {
    font-size: 12px;
    font-weight: 700;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 16px;
}

.opportunity-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
}

.opportunity-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Comparison Table */
.comparison-table-wrapper {
    overflow-x: auto;
}

.comparison-table,
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.comparison-table th,
.data-table th {
    text-align: left;
    padding: 16px;
    font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.comparison-table td,
.data-table td {
    padding: 16px;
    border-bottom: 1px solid var(--border);
    color: var(--text-secondary);
}

.comparison-table td:first-child,
.data-table td:first-child {
    color: var(--text);
    font-weight: 500;
}

.comparison-table tr:hover td,
.data-table tr:hover td {
    background: rgba(255,255,255,0.02);
}

/* Roadmap */
.roadmap-timeline {
    position: relative;
}

.roadmap-timeline::before {
    content: '';
    position: absolute;
    left: 24px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border);
}

.roadmap-phase {
    display: flex;
    gap: 32px;
    margin-bottom: 48px;
    position: relative;
}

.phase-marker {
    width: 48px;
    height: 48px;
    background: var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 800;
    color: white;
    flex-shrink: 0;
    z-index: 1;
}

.phase-content {
    flex: 1;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
}

.phase-content h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;
    display: inline-block;
    margin-right: 12px;
}

.phase-budget {
    font-size: 12px;
    font-weight: 700;
    color: var(--success);
    background: rgba(16, 185, 129, 0.1);
    padding: 4px 10px;
    border-radius: 4px;
}

.phase-content ul {
    margin-top: 16px;
    padding-left: 20px;
}

.phase-content li {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 8px;
    line-height: 1.6;
}

/* CTA Section */
.research-cta {
    text-align: center;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.05), rgba(96, 165, 250, 0.05));
    border-radius: var(--radius);
    border: 1px solid var(--border);
    margin: 40px auto;
}

.research-cta h2 {
    font-size: 28px;
    font-weight: 800;
    margin-bottom: 12px;
}

.research-cta p {
    color: var(--text-secondary);
    margin-bottom: 24px;
}

/* Content Sections */
.section-main h2 {
    font-size: 28px;
    font-weight: 800;
    margin-bottom: 20px;
    margin-top: 48px;
}

.section-main h2:first-child {
    margin-top: 0;
}

.section-main h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 16px;
    margin-top: 32px;
}

.section-main p {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.7;
    margin-bottom: 16px;
}

.section-main ul {
    padding-left: 20px;
    margin-bottom: 16px;
}

.section-main li {
    color: var(--text-secondary);
    font-size: 15px;
    margin-bottom: 10px;
    line-height: 1.6;
}

blockquote {
    background: var(--bg-card);
    border-left: 3px solid var(--accent);
    padding: 20px 24px;
    margin: 24px 0;
    border-radius: 0 var(--radius) var(--radius) 0;
    font-style: italic;
    color: var(--text);
}

/* Model Cards */
.model-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin: 24px 0;
}

.model-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
}

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

.model-tag {
    font-size: 11px;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 4px;
    text-transform: uppercase;
}

.model-tag.open {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.model-tag.closed {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
}

.model-card h3 {
    margin-top: 0 !important;
}

.model-card ul {
    margin-top: 12px;
}

.model-note {
    font-size: 13px !important;
    color: var(--text-muted) !important;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

/* Product Grid */
.product-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin: 24px 0;
}

.product-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.product-name {
    font-weight: 700;
    color: var(--text);
}

.product-desc {
    font-size: 13px;
    color: var(--text-muted);
}

/* Lessons */
.lessons {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin: 24px 0;
}

.lesson {
    display: flex;
    gap: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
}

.lesson-number {
    width: 40px;
    height: 40px;
    background: var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 800;
    color: white;
    flex-shrink: 0;
}

.lesson-content h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 6px;
}

.lesson-content p {
    font-size: 14px;
    margin: 0;
}

/* Country Cards */
.market-map {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin: 24px 0;
}

.country-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.country-header {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 24px 32px;
    border-bottom: 1px solid var(--border);
}

.country-flag {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 800;
    color: white;
    flex-shrink: 0;
}

.country-card.argentina .country-flag { background: linear-gradient(135deg, #74acdf, #fff); color: #333; }
.country-card.brazil .country-flag { background: linear-gradient(135deg, #009739, #fedd00); color: #333; }
.country-card.chile .country-flag { background: linear-gradient(135deg, #d52b1e, #0039a6); color: white; }
.country-card.uruguay .country-flag { background: linear-gradient(135deg, #0038a8, #fff); color: #333; }
.country-card.paraguay .country-flag { background: linear-gradient(135deg, #d52b1e, #0038a8); color: white; }

.country-title h3 {
    margin: 0 !important;
    font-size: 18px;
}

.country-pop {
    font-size: 13px;
    color: var(--text-muted);
}

.country-body {
    padding: 24px 32px;
}

.country-body p {
    font-size: 14px;
    margin-bottom: 12px;
}

.country-body p:last-child {
    margin-bottom: 0;
}

/* Regulatory Grid */
.regulatory-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin: 24px 0;
}

.reg-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 24px;
}

.reg-country {
    display: block;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 4px;
}

.reg-status {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 4px;
    margin-bottom: 12px;
}

.reg-item:nth-child(1) .reg-status { background: rgba(16, 185, 129, 0.1); color: var(--success); }
.reg-item:nth-child(2) .reg-status { background: rgba(245, 158, 11, 0.1); color: var(--warning); }
.reg-item:nth-child(3) .reg-status { background: rgba(59, 130, 246, 0.1); color: var(--accent); }
.reg-item:nth-child(4) .reg-status { background: rgba(139, 92, 246, 0.1); color: #8b5cf6; }

.reg-item p {
    font-size: 13px;
    margin: 0;
}

/* Competitor Analysis */
.competitor-analysis {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin: 24px 0;
}

.competitor {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
}

.competitor h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 8px;
}

.competitor p {
    font-size: 14px;
    margin: 0;
}

/* Action List */
.action-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin: 24px 0;
}

.action-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 20px 24px;
    transition: border-color 0.2s;
}

.action-item:hover {
    border-color: var(--border-light);
}

.action-check {
    display: block;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 6px;
    font-size: 15px;
}

.action-item p {
    font-size: 14px;
    margin: 0;
    color: var(--text-secondary);
}

.phase-budget-inline {
    display: inline-block;
    font-size: 13px;
    font-weight: 700;
    color: var(--success);
    background: rgba(16, 185, 129, 0.1);
    padding: 4px 12px;
    border-radius: 4px;
    margin-bottom: 16px;
}

/* Risk Table */
.risk-badge {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 4px;
}

.risk-badge.med { background: rgba(245, 158, 11, 0.1); color: var(--warning); }
.risk-badge.high { background: rgba(239, 68, 68, 0.1); color: var(--danger); }
.risk-badge.crit { background: rgba(239, 68, 68, 0.2); color: var(--danger); }

/* Tech Timeline */
.tech-timeline {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin: 24px 0;
}

.tech-phase {
    display: flex;
    gap: 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
}

.tech-phase-marker {
    font-size: 12px;
    font-weight: 700;
    color: var(--accent);
    background: var(--accent-glow);
    padding: 6px 12px;
    border-radius: 4px;
    height: fit-content;
    flex-shrink: 0;
}

.tech-phase-content {
    flex: 1;
}

.tech-phase-content h3 {
    margin: 0 0 8px 0 !important;
}

.tech-cost {
    font-size: 12px;
    font-weight: 700;
    color: var(--success);
    background: rgba(16, 185, 129, 0.1);
    padding: 2px 8px;
    border-radius: 4px;
}

.tech-phase-content ul {
    margin-top: 16px;
}

/* Product Stack */
.product-stack {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin: 24px 0;
}

.stack-layer {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
}

.stack-layer-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
}

.stack-number {
    width: 28px;
    height: 28px;
    background: var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 800;
    color: white;
    flex-shrink: 0;
}

.stack-layer-header h4 {
    margin: 0;
    font-size: 16px;
}

.stack-equivalent {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 500;
}

.stack-layer p {
    font-size: 14px;
    margin: 0;
}

/* DC Grid */
.dc-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin: 24px 0;
}

.dc-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.dc-card.primary {
    border-color: var(--accent);
}

.dc-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 20px;
    border-bottom: 1px solid var(--border);
    flex-wrap: wrap;
}

.dc-flag {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 800;
    color: white;
    flex-shrink: 0;
}

.dc-card:nth-child(1) .dc-flag { background: linear-gradient(135deg, #d52b1e, #0038a8); }
.dc-card:nth-child(2) .dc-flag { background: linear-gradient(135deg, #74acdf, #fff); color: #333; }
.dc-card:nth-child(3) .dc-flag { background: linear-gradient(135deg, #009739, #fedd00); color: #333; }

.dc-header h4 {
    margin: 0;
    font-size: 15px;
}

.dc-badge {
    font-size: 10px;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 4px;
    background: var(--text-muted);
    color: var(--bg);
}

.dc-badge.primary {
    background: var(--accent);
    color: white;
}

.dc-card ul {
    padding: 20px;
    margin: 0;
    list-style: none;
}

.dc-card li {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 8px;
    padding-left: 16px;
    position: relative;
}

.dc-card li::before {
    content: '>';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: 700;
}

/* Hardware Stack */
.hardware-stack {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin: 24px 0;
}

.hw-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 16px 20px;
}

.hw-label {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 500;
}

.hw-value {
    font-size: 13px;
    color: var(--text);
    font-weight: 600;
    font-family: var(--font-mono);
}

/* Code Block */
.code-block {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    margin: 24px 0;
}

.code-block pre {
    padding: 24px;
    overflow-x: auto;
    font-family: var(--font-mono);
    font-size: 13px;
    line-height: 1.8;
    color: var(--text-secondary);
}

.code-block code {
    font-family: var(--font-mono);
}

/* Security Grid */
.security-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin: 24px 0;
}

.sec-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 24px;
}

.sec-item h4 {
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 8px;
}

.sec-item p {
    font-size: 13px;
    margin: 0;
}

/* Cost Table */
.cost-table-wrapper {
    overflow-x: auto;
    margin: 24px 0;
}

/* Footer */
.footer {
    border-top: 1px solid var(--border);
    padding: 40px;
    margin-top: 80px;
}

.footer-content {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-logo {
    font-size: 18px;
    font-weight: 800;
    color: var(--text);
}

.footer-brand p {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 4px;
}

.footer-meta {
    display: flex;
    gap: 16px;
    font-size: 12px;
    color: var(--text-muted);
}

.footer-status {
    color: var(--warning);
}

/* Responsive */
@media (max-width: 1024px) {
    .hero {
        flex-direction: column;
        text-align: center;
        gap: 40px;
    }
    
    .hero-content {
        max-width: 100%;
    }
    
    .hero-title {
        font-size: 48px;
    }
    
    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .orbital-system {
        width: 300px;
        height: 300px;
    }
    
    .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .opportunity-grid,
    .model-cards,
    .product-grid,
    .regulatory-grid,
    .dc-grid,
    .hardware-stack,
    .security-grid {
        grid-template-columns: 1fr;
    }
    
    .nav-links {
        display: none;
    }
}

@media (max-width: 640px) {
    .hero-title {
        font-size: 36px;
    }
    
    .metrics-grid {
        grid-template-columns: 1fr;
    }
    
    .orbital-system {
        width: 250px;
        height: 250px;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
    
    .page-header h1 {
        font-size: 32px;
    }
}

/* Scroll animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.opportunity-card,
.metric,
.roadmap-phase,
.lesson,
.country-card,
.tech-phase,
.stack-layer,
.dc-card {
    animation: fadeInUp 0.6s ease-out forwards;
}