:root{--primary:#1e6f5c;--primary-dark:#16574a;--accent:#28a745;--bg:#f4f6f8;--card:#ffffff;--text:#1f2d3d;--muted:#6b7a8d;--border:#e2e8f0;--danger:#e03131;--warn:#f08c00;--blue:#1971c2}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Segoe UI,system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);font-size:14px}.app{display:flex;min-height:100vh}.sidebar{width:235px;background:var(--primary);color:#fff;display:flex;flex-direction:column;flex-shrink:0}.brand{padding:20px;font-size:18px;font-weight:700;border-bottom:1px solid rgba(255,255,255,.15);line-height:1.3}.brand small{display:block;font-weight:400;font-size:11px;opacity:.85;margin-top:3px}.ctx{padding:12px 16px;border-bottom:1px solid rgba(255,255,255,.15)}.ctx label{display:block;font-size:10px;text-transform:uppercase;letter-spacing:.5px;opacity:.7;color:#fff;margin-bottom:5px}.ctx select{width:100%;background:#ffffff1f;color:#fff;border:1px solid rgba(255,255,255,.25);font-size:13px;padding:7px 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