:root{--primary: #4f46e5;--primary-hover: #4338ca;--primary-light: #e0e7ff;--success: #10b981;--success-hover: #059669;--danger: #ef4444;--danger-hover: #dc2626;--background: #f1f5f9;--card: #ffffff;--text: #1e293b;--text-muted: #64748b;--border: #e2e8f0;--radius: 12px;--shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--background);color:var(--text);line-height:1.5;-webkit-font-smoothing:antialiased}.app{max-width:600px;margin:0 auto;padding:0 16px 60px}h1{font-size:1.5rem;font-weight:700;margin-bottom:4px}h2{font-size:1.125rem;font-weight:600;margin-bottom:4px}p{color:var(--text-muted);font-size:.875rem}.subtitle{margin-bottom:16px}.header{text-align:center;margin-bottom:4px;margin-top:4px}.header 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