:root{--primary:#3b82f6;--primary-hover:#2563eb;--secondary:#1e293b;--background:#f8fafc;--surface:#fff;--text:#0f172a;--text-muted:#64748b;--border:#e2e8f0;--success:#10b981;--danger:#ef4444;--radius-sm:.375rem;--radius:.75rem;--radius-lg:1rem;--shadow:0 4px 6px -1px #0000001a, 0 2px 4px -2px #0000001a}body.dark-mode{--primary:#60a5fa;--primary-hover:#3b82f6;--secondary:#f8fafc;--background:#0f172a;--surface:#1e293b;--text:#f8fafc;--text-muted:#94a3b8;--border:#334155}@media (prefers-color-scheme:dark){body.theme-system{--primary:#60a5fa;--primary-hover:#3b82f6;--secondary:#f8fafc;--background:#0f172a;--surface:#1e293b;--text:#f8fafc;--text-muted:#94a3b8;--border:#334155}}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--background);color:var(--text);-webkit-font-smoothing:antialiased;font-family:Inter,system-ui,-apple-system,sans-serif;line-height:1.5;transition:background-color .3s,color .3s}.container{max-width:1200px;margin:0 auto;padding:0 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h3{color:var(--primary);margin-bottom:1rem;font-size:1.25rem}.footer-col h4{margin-bottom:1rem;font-size:1rem}.footer-col a{color:var(--text-muted);margin-bottom:.5rem;text-decoration:none;display:block}.footer-col a:hover{color:var(--primary)}.footer-bottom{text-align:center;border-top:1px solid var(--border);color:var(--text-muted);padding-top:2rem}@media print{.no-print{display:none!important}body{color:#000;background-color:#fff}.card,.result-card{box-shadow:none;break-inside:avoid;border:1px solid #ccc}.container{max-width:100%;padding:0}.calculator-grid{grid-template-columns:1fr}.chart-container{height:300px}.table-responsive{overflow:visible}}@media (prefers-reduced-motion){*{transition:none!important;animation:none!important}}