:root{--bg: #0f172a;--panel: #ffffff;--muted: #64748b;--border: #e2e8f0;--primary: #2563eb;--primary-dark: #1d4ed8;--danger: #dc2626;--text: #0f172a;--radius: 10px;--shadow: 0 1px 3px rgba(15, 23, 42, .08), 0 1px 2px rgba(15, 23, 42, .06)}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--text);background:#f1f5f9;font-size:14px;line-height:1.5}h1{font-size:22px;margin:0}h2{font-size:16px;margin:0 0 8px}h3{font-size:15px;margin:0 0 4px}.muted{color:var(--muted)}.small{font-size:12px}.pad{padding:16px}.btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid var(--border);background:#fff;color:var(--text);padding:8px 14px;border-radius:8px;font-size:14px;cursor:pointer;font-weight:500;transition:background .12s,border-color .12s}.btn:hover{background:#f8fafc}.btn.small{padding:5px 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