:root{--bg: #f4f6f9;--surface: #ffffff;--border: #e2e8f0;--border-strong: #cbd5e1;--text: #1e293b;--muted: #64748b;--primary: #2563eb;--primary-dark: #1d4ed8;--primary-soft: #eff6ff;--green: #15803d;--green-soft: #dcfce7;--amber: #b45309;--amber-soft: #fef3c7;--red: #b91c1c;--red-soft: #fee2e2;--radius: 10px;--shadow: 0 1px 2px rgba(15, 23, 42, .06), 0 1px 3px rgba(15, 23, 42, .08);--shadow-lg: 0 10px 30px rgba(15, 23, 42, .18)}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}h1,h2,h3,h4{margin:0;font-weight:650;letter-spacing:-.01em}p{margin:0}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:8px 14px;border:1px solid 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