:root{--bg:#f4f7fb;--panel:#fff;--ink:#172033;--muted:#6c7890;--line:#e5eaf1;--primary:#3157d5;--primary-dark:#2445b5;--success:#158765;--danger:#cf3e4b;--sidebar:#10182b;--sidebar-2:#17213a;--shadow:0 14px 38px rgba(23,32,51,.08);font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;color:var(--ink)}*{box-sizing:border-box}body{margin:0;background:var(--bg);font-size:14px}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}.app-shell{min-height:100vh}.sidebar{position:fixed;inset:0 auto 0 0;width:260px;background:linear-gradient(180deg,var(--sidebar),var(--sidebar-2));color:#dce4f8;display:flex;flex-direction:column;z-index:20;box-shadow:8px 0 28px rgba(10,17,32,.12)}.brand{display:flex;gap:12px;align-items:center;padding:24px 22px;border-bottom:1px solid 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