:root{--bg:#f4f6fb;--panel:#fff;--text:#172033;--muted:#718096;--line:#e7eaf1;--primary:#e83e5b;--primary2:#ff6b6b;--green:#1f9d68;--orange:#e58b2a;--blue:#3378d4;--danger:#c83a4a;--shadow:0 14px 45px rgba(25,39,75,.08)}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:Tahoma,"Segoe UI",sans-serif;font-size:14px}a{color:inherit;text-decoration:none}.ltr{direction:ltr;text-align:right}.app-shell{min-height:100vh;display:grid;grid-template-columns:250px 1fr}.sidebar{background:#171b2b;color:#fff;padding:24px 18px;display:flex;flex-direction:column;position:sticky;top:0;height:100vh}.brand{display:flex;align-items:center;gap:12px}.brand strong{display:block;font-size:16px}.brand small{display:block;color:#9ba4bf;margin-top:4px}.brand-mark{display:grid;place-items:center;width:44px;height:44px;border-radius:15px;background:linear-gradient(135deg,var(--primary),#ff8a65);font-size:22px;font-weight:900}.sidebar 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