:root {
    --navy: #162655;
    --blue: #259CD4;
    --blue-light: #e8f4fc;
    --blue-dark: #1b7aaa;
    --text: #2d3748;
    --text-muted: #64748b;
    --bg: #ffffff;
    --bg-alt: #f8fafc;
    --border: #e2e8f0;
    --green: #16a34a;
    --orange: #ea580c;
    --red: #dc2626;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.7;
    color: var(--text);
    background: var(--bg);
}

/* Hero */
.hero {
    background: linear-gradient(135deg, var(--navy) 0%, #1e3a7a 60%, var(--blue) 100%);
    color: #fff;
    padding: 4rem 2rem 3rem;
    text-align: center;
}

.hero h1 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
}

.hero .subtitle {
    font-size: 1.15rem;
    opacity: 0.9;
    margin-bottom: 0.25rem;
}

.hero .fips {
    font-size: 0.9rem;
    opacity: 0.7;
    font-family: 'Courier New', monospace;
}

.hero-stats {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 2rem;
}

.hero-stat {
    background: rgba(255,255,255,0.12);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 10px;
    padding: 1rem 1.5rem;
    min-width: 150px;
    backdrop-filter: blur(4px);
}

.hero-stat .value {
    font-size: 1.75rem;
    font-weight: 800;
    display: block;
}

.hero-stat .label {
    font-size: 0.8rem;
    opacity: 0.8;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Container */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Section */
.section {
    padding: 3rem 0;
    border-bottom: 1px solid var(--border);
}

.section:last-child {
    border-bottom: none;
}

.section-title {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--navy);
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 3px solid var(--blue);
    display: inline-block;
}

/* Case Points */
.case-points {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.case-point {
    background: var(--bg-alt);
    border-radius: 10px;
    padding: 1.5rem;
    border-left: 4px solid var(--blue);
}

.case-point h3 {
    font-size: 1.05rem;
    color: var(--navy);
    margin-bottom: 0.5rem;
}

.case-point p {
    font-size: 0.92rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* Metric Cards */
.metric-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
}

.metric-card {
    background: var(--bg-alt);
    border-radius: 10px;
    padding: 1.25rem;
    text-align: center;
    border: 1px solid var(--border);
    transition: box-shadow 0.2s;
}

.metric-card:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.metric-card .metric-value {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--navy);
}

.metric-card .metric-label {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.metric-card .metric-compare {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
    padding-top: 0.5rem;
    border-top: 1px solid var(--border);
}

.metric-card.highlight {
    border-color: var(--blue);
    background: var(--blue-light);
}

/* Comparison Table */
.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
    font-size: 0.92rem;
}

.comparison-table th,
.comparison-table td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.comparison-table th {
    background: var(--navy);
    color: #fff;
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.comparison-table tr:nth-child(even) {
    background: var(--bg-alt);
}

.comparison-table tr:hover {
    background: var(--blue-light);
}

.comparison-table .target-row {
    background: var(--blue-light);
    font-weight: 600;
}

/* Commuter Stats */
.commuter-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-top: 1rem;
}

.commuter-card {
    background: var(--bg-alt);
    border-radius: 10px;
    padding: 1.5rem;
    border: 1px solid var(--border);
}

.commuter-card h3 {
    font-size: 1rem;
    color: var(--navy);
    margin-bottom: 0.75rem;
}

.commuter-stat-row {
    display: flex;
    justify-content: space-between;
    padding: 0.35rem 0;
    font-size: 0.9rem;
    border-bottom: 1px solid var(--border);
}

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

.commuter-stat-row .stat-label {
    color: var(--text-muted);
}

.commuter-stat-row .stat-value {
    font-weight: 600;
    color: var(--navy);
}

/* Infrastructure Tags */
.infra-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1rem;
}

.infra-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: 25px;
    padding: 0.6rem 1.25rem;
    font-size: 0.88rem;
    color: var(--text);
    transition: all 0.2s;
}

.infra-tag:hover {
    border-color: var(--blue);
    background: var(--blue-light);
}

.infra-tag .tag-icon {
    font-size: 1.1rem;
}

.infra-category {
    margin-bottom: 1.5rem;
}

.infra-category h3 {
    font-size: 1rem;
    color: var(--navy);
    margin-bottom: 0.75rem;
    font-weight: 600;
}

/* Source Citation */
.sources {
    padding: 2rem 0;
    color: var(--text-muted);
    font-size: 0.82rem;
}

.sources h2 {
    font-size: 1rem;
    color: var(--text);
    margin-bottom: 0.75rem;
}

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

.sources li {
    padding: 0.2rem 0;
}

/* Disclaimer */
.disclaimer {
    background: #fffbeb;
    border: 1px solid #fbbf24;
    border-radius: 8px;
    padding: 1.25rem;
    font-size: 0.82rem;
    color: #92400e;
    margin: 2rem 0;
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 { font-size: 1.75rem; }
    .hero-stats { gap: 0.75rem; }
    .hero-stat { min-width: 120px; padding: 0.75rem 1rem; }
    .hero-stat .value { font-size: 1.35rem; }

    .case-points { grid-template-columns: 1fr; }
    .metric-grid { grid-template-columns: repeat(2, 1fr); }
    .commuter-grid { grid-template-columns: 1fr; }
    .comparison-table { font-size: 0.82rem; }
    .comparison-table th, .comparison-table td { padding: 0.5rem 0.6rem; }
}

@media (max-width: 480px) {
    .metric-grid { grid-template-columns: 1fr; }
    .container { padding: 0 1rem; }
}