:root{--bg:#f4f6fb;--panel:#fff;--text:#0f172a;--muted:#64748b;--line:#e5e7eb;--primary:#2563eb;--primary2:#1d4ed8;--success:#16a34a;--danger:#dc2626;--shadow:0 18px 45px rgba(15,23,42,.08)}
*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:var(--bg);color:var(--text);font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}a{text-decoration:none;color:inherit}button,input,select,textarea{font:inherit}input,select,textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:14px;background:#fff;outline:none}textarea{resize:vertical}.app-shell{display:grid;grid-template-columns:280px 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