.mfsb{width:220px;height:100dvh;font-family:var(--font-inter), system-ui, sans-serif;z-index:5;background:linear-gradient(#ffffff1a,#ffffff14),url(/learning_home/assets/sidebar-graphic.png) bottom/100% 100% no-repeat,#fbfdff;border-right:1px solid #e7edf5;flex-direction:column;flex:none;align-self:start;padding:22px 14px 18px;display:flex;position:sticky;top:0;overflow:hidden}.mfsb .brand{text-align:center;flex-shrink:0;margin:10px auto 22px;text-decoration:none;display:block}.mfsb .brand img{width:150px;height:auto;margin:0 auto;display:block}.mfsb-nav{flex-direction:column;flex:none;gap:6px;display:flex}.mfsb-nav a{color:#152347;border-radius:18px;align-items:center;gap:15px;min-height:45px;padding:7px 13px;font-size:14.5px;font-weight:650;line-height:1.2;text-decoration:none;transition:background .15s,color .15s,transform .15s;display:flex}.mfsb-nav a .ico{stroke:currentColor;stroke-width:2.15px;fill:none;stroke-linecap:round;stroke-linejoin:round;color:#1e335b;flex-shrink:0;width:26px;height:26px}.mfsb-nav a:not(.active):hover{background:#ffffffb8;transform:translate(1px)}.mfsb-nav a.active{color:#1252d1;background:linear-gradient(90deg,#dbebfff0,#eff7ffcc);min-height:56px;font-weight:800;box-shadow:inset 0 1px #fffc}.mfsb-nav a.active .ico{color:#fff;stroke-width:2.35px;filter:drop-shadow(0 9px 16px #1252d13d);background:linear-gradient(#3c89ff 0%,#1c66e6 100%);border-radius:15px;width:42px;height:42px;padding:10px}.mfsb-ask{text-align:left;background:radial-gradient(circle at 16% 18%,#bce1ff94,#0000 34%),linear-gradient(145deg,#fff 0%,#f3f9ff 100%);border:1px solid #d8e9fb;border-radius:24px;grid-template-columns:66px 1fr;align-items:center;gap:14px 8px;margin-top:auto;margin-bottom:16px;padding:18px 16px 16px;display:grid;box-shadow:0 18px 38px #15234717,inset 0 1px #fffc}.mfsb-ask img{object-fit:contain;width:66px;height:auto;display:block}.mfsb-ask .label{color:#152347;font-size:13px;font-weight:700;line-height:1.35}.mfsb-ask .btn-ask{color:#0f4ecd;background:linear-gradient(#fff,#fff) padding-box padding-box,linear-gradient(135deg,#74b8ffc7,#1252d16b) border-box;border:1px solid #60a5fa75;border-radius:999px;grid-column:1/-1;justify-content:center;align-items:center;gap:8px;width:100%;padding:10px 12px;font-size:13px;font-weight:700;text-decoration:none;transition:transform .15s,box-shadow .15s;display:flex;box-shadow:0 12px 24px #1252d11f,inset 0 1px #ffffffe6}.mfsb-ask .btn-ask:hover{transform:translateY(-1px)}.mfsb-ask .btn-ask .ico{stroke:currentColor;stroke-width:2.1px;fill:none;background:linear-gradient(#eaf5ff 0%,#dbeeff 100%);border-radius:50%;width:24px;height:24px;padding:5px;box-shadow:inset 0 1px #fffffff2}.mfsb-settings{color:#5b6b82;align-items:center;gap:10px;padding:8px 14px;font-size:13px;font-weight:500;text-decoration:none;display:flex}.mfsb-settings .ico{stroke:currentColor;stroke-width:1.75px;fill:none;stroke-linecap:round;stroke-linejoin:round;width:18px;height:18px}.mfsb-settings:hover{color:#152347}@media (max-width:760px){.mfsb{display:none}}