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var(--sans);text-align:center;max-width:26%;color:var(--ink)}.vf-tiles{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(170px,1fr))}@media(min-width:900px){.vf-tiles.c4{grid-template-columns:repeat(4,minmax(0,1fr))}.vf-tiles.c3{grid-template-columns:repeat(3,minmax(0,1fr))}}.vf-tile{background:var(--wash,#F6F8FB);border-radius:10px;padding:16px;display:flex;flex-direction:column;gap:5px}.vf-tile b{color:var(--ink);font-size:1rem;line-height:1.3}.vf-tile>span:last-child{font-size:.88rem;color:var(--ink-2);line-height:1.45}.vf-ti{width:38px;height:38px;border-radius:10px;background:var(--paper);color:var(--c);display:grid;place-items:center;margin-bottom:6px;box-shadow:0 0 0 1px var(--line)}.vf-stat{font:700 1.45rem/1.15 var(--sans);color:var(--ink);font-variant-numeric:tabular-nums;letter-spacing:-.01em}.vf-cmp{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}.vf-col{border-radius:10px;background:var(--paper);border:1px solid var(--line);overflow:hidden;display:flex;flex-direction:column}.vf-ch{display:flex;gap:8px;align-items:center;justify-content:space-between;background:var(--w);color:var(--c);padding:12px 14px}.vf-ch b{font-size:1rem;color:var(--ink);margin-right:auto}.vf-ch .vi-ic{order:-1}.vf-hv{font-size:.78rem;font-weight:600;color:var(--c)}.vf-col ul{margin:0;padding:12px 14px;list-style:none;font-size:.92rem;color:var(--ink-2);display:grid;gap:8px}.vf-col li{display:flex;gap:8px;align-items:flex-start;line-height:1.45}.vf-col li i{flex:none;color:var(--c);margin-top:1px}.vf-col li i .vi-ic{width:16px;height:16px}.vf-col ul.plain li:before{content:"";flex:none;width:5px;height:5px;border-radius:50%;background:var(--c);margin-top:.55em}.vf-col.heavy{box-shadow:0 0 0 1.5px var(--c)}.vf-vd{margin:auto 14px 14px;padding-top:10px;border-top:1px solid var(--line);font-weight:600;color:var(--ink);font-size:.92rem}.vf-tl{list-style:none;margin:0;padding:0;display:grid;gap:0}.vf-tl li{display:grid;grid-template-columns:132px 1fr;gap:30px;position:relative;padding:0 0 18px}.vf-tl li:before{content:"";position:absolute;left:142px;top:5px;width:10px;height:10px;border-radius:50%;background:var(--paper);box-shadow:0 0 0 2px var(--c)}.vf-tl li:not(:last-child):after{content:"";position:absolute;left:146px;top:20px;bottom:2px;width:2px;background:var(--line)}.vf-tl .vf-w{font-weight:600;color:var(--ink);font-size:.92rem;text-align:right;font-variant-numeric:tabular-nums;line-height:1.35}.vf-tl li>div{padding:0}.vf-tl b{display:block;color:var(--ink);font-size:.97rem}.vf-tl li>div span{font-size:.9rem;color:var(--ink-2);line-height:1.45}.vf-pyr{display:grid;justify-items:center;gap:6px}.vf-lv{display:flex;gap:12px;align-items:center;justify-content:center;text-align:center;border-radius:8px;padding:12px 16px;background:var(--v-r1);color:var(--v-navy);min-width:240px}.vf-lv b{display:block;font-size:.98rem;line-height:1.25}.vf-lv span{font-size:.86rem;opacity:.85}.vf-lv .vf-ln{flex:none;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;font:700 .82rem var(--sans);background:#ffffffa6;color:var(--v-navy)}.vf-lv.s0{background:var(--v-r1)}.vf-lv.s1{background:var(--v-r2)}.vf-lv.s2{background:var(--v-r3);color:#08163a}.vf-lv.s3{background:var(--v-r4);color:#fff}.vf-lv.s4{background:var(--v-r5);color:#fff}.vf-lv.s3 .vf-ln,.vf-lv.s4 .vf-ln{background:#ffffff2e;color:#fff}.vf-lv.warn{background:var(--v-amber-w);color:var(--ink);box-shadow:inset 0 0 0 1px #b7791f59}.vf-lv.warn .vf-ln{background:transparent;color:var(--v-amber)}.vf-mx{display:grid;grid-template-columns:auto 1fr;gap:10px}.vf-my{display:flex;flex-direction:column;justify-content:space-between;align-items:center;writing-mode:vertical-rl;transform:rotate(180deg);font-size:.8rem;color:var(--mute)}.vf-my b{color:var(--ink-2);font-weight:600}.vf-mg{display:grid;grid-template-columns:1fr 1fr;gap:8px}.vf-q{background:var(--w);border-radius:10px;padding:14px;display:grid;gap:4px;min-height:96px;align-content:start}.vf-q b{color:var(--ink)}.vf-q span{font-size:.87rem;color:var(--ink-2)}.vf-mxl{display:flex;justify-content:space-between;font-size:.8rem;color:var(--mute)}.vf-mxl b{color:var(--ink-2);font-weight:600}.vf-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px}@media(min-width:900px){.vf-stats.c4{grid-template-columns:repeat(4,minmax(0,1fr))}}.vf-st{border-radius:10px;padding:16px;background:var(--wash,#F6F8FB);display:flex;flex-direction:column;gap:3px;min-width:0}.vf-st b{font:700 clamp(1.25rem,2.2vw,1.65rem)/1.15 var(--sans);color:var(--ink);font-variant-numeric:tabular-nums;letter-spacing:-.015em;overflow-wrap:anywhere}.vf-st.sem b{color:var(--c)}.vf-st span{color:var(--ink);font-weight:500;font-size:.93rem;line-height:1.35}.vf-st 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.no>span{background:var(--v-red)}.vf-ck .q>span{background:var(--v-amber)}.vf-stk{display:flex;gap:2px;border-radius:6px;overflow:hidden;height:22px}.vf-stk i{display:block;min-width:2px}.vf-dn{display:grid;grid-template-columns:170px 1fr;gap:28px;align-items:center}.vf-ring{width:170px;aspect-ratio:1;border-radius:50%;display:grid;place-items:center;max-width:100%}.vf-ring>div{width:68%;aspect-ratio:1;border-radius:50%;background:var(--paper);display:grid;place-content:center;text-align:center;padding:6px}.vf-ring b{font:700 1.1rem var(--sans);color:var(--ink)}.vf-ring span{font-size:.72rem;color:var(--ink-2)}.vf-gg{max-width:420px;margin:0 auto}.vf-gv{text-align:center;margin-top:-6px;display:grid;gap:2px}.vf-gv b{font:700 1.8rem var(--sans);color:var(--ink)}.vf-gv span{font-weight:600;font-size:.92rem}.vf-gg .vf-lg{justify-content:center}.vf-bars,.vf-wf{display:grid;gap:10px}.vf-br,.vf-wr{display:grid;grid-template-columns:minmax(110px,32%) 1fr minmax(64px,auto);gap:12px;align-items:center;font-size:.92rem}.vf-bl{color:var(--ink);overflow-wrap:anywhere;line-height:1.3}.vf-bt{position:relative;height:18px;background:var(--v-grey-w);border-radius:4px}.vf-bt i{position:absolute;top:0;bottom:0;border-radius:4px;animation:vfw .8s ease-out both}@keyframes vfw{0%{clip-path:inset(0 100% 0 0)}to{clip-path:inset(0 0 0 0)}}.vf-bt u{position:absolute;top:-4px;bottom:-4px;width:1.5px;background:var(--ink-2)}.vf-br>b,.vf-wr>b{font-weight:600;color:var(--ink);text-align:right;font-variant-numeric:tabular-nums}.vf-bn{font-size:.82rem;color:var(--mute);margin:-6px 0 2px}.vf-wf .vf-bt{background:transparent;border-bottom:1px dashed var(--line)}.vf-wr.tot .vf-bl,.vf-wr.tot>b{font-weight:700}.vf-lys{display:block}.vf-ly{border-radius:12px;background:var(--w);padding:12px 14px 14px;display:grid;gap:4px;box-shadow:inset 0 0 0 1px var(--line)}.vf-ly 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th{background:var(--w)}.vf-mk{padding:0;overflow:hidden}.vf-mk>.vf-h{padding:20px 22px 0;margin-bottom:12px}.vf-mk>figcaption{margin:0;padding:12px 22px 18px}.mk-box{border-top:1px solid var(--line)}.mk-hd{display:flex;flex-wrap:wrap;gap:4px 14px;align-items:baseline;padding:12px 22px;background:var(--wash,#F6F8FB);border-bottom:1px solid var(--line);font-size:.86rem;color:var(--ink-2);font-variant-numeric:tabular-nums}.mk-hd b{color:var(--ink);font-size:.95rem;letter-spacing:.01em}.mk-rg{color:var(--ink)}.mk-ohlc{margin-left:auto}.mk-hd em,.mk-tip em{font-style:normal;font-weight:600}.up{color:var(--v-up)}.dn{color:var(--v-down)}.mk-wrap{position:relative;padding:10px 8px 0 14px}.mk-ax{font-size:11.5px}.mk-note{font-size:11.5px;fill:var(--ink-2)}.mk-tag{font:600 11.5px var(--sans);fill:#fff}.mk-pin{font:700 11px var(--sans);fill:var(--paper)}.mk-hit{cursor:crosshair}.mk-tip{position:absolute;top:12px;background:var(--paper);border:1px solid var(--line-2,#D5DAE1);box-shadow:0 4px 16px 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label{display:grid;gap:6px;font-size:.86rem;color:var(--ink-2);font-weight:500}.tx-in input[type=number]{font:600 1.05rem var(--sans);font-variant-numeric:tabular-nums;padding:10px 12px;border:1px solid var(--line-2,var(--line));border-radius:8px;background:var(--paper);color:var(--ink);width:100%;box-sizing:border-box}.tx-in input[type=number]:focus{outline:2px solid var(--v-blue);outline-offset:1px;border-color:transparent}.tx-sl{grid-column:1/-1}.tx-sl span{display:flex;justify-content:space-between;font-size:.92rem}.tx-sl b{font:700 1.1rem var(--sans);color:var(--ink)}.tx-sl input{width:100%;accent-color:var(--v-blue)}.tx-out{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:10px}.tx-o{background:var(--wash,#F6F8FB);border-radius:10px;padding:12px 14px;display:grid;gap:3px}.tx-o span{font-size:.82rem;color:var(--ink-2);line-height:1.35}.tx-o b{font:700 1.15rem var(--sans);color:var(--ink);font-variant-numeric:tabular-nums}.tx-o.big{background:var(--v-navy)}.tx-o.big span{color:#ffffffbf}.tx-o.big b{font-size:1.6rem;color:#fff}.tx-o b.up{color:var(--v-green)}.tx-o b.dn{color:var(--v-red)}.tx-o.big b.up,.tx-o.big b.dn{color:#fff}.tx-bar{height:28px;border-radius:6px;background:var(--v-grey-w);position:relative;overflow:hidden}.tx-bar i{position:absolute;inset:0 auto 0 0;background:var(--v-blue);transition:width .3s}.tx-bar span{position:absolute;left:10px;top:50%;transform:translateY(-50%);font:600 .85rem var(--sans);color:var(--ink);text-shadow:0 0 6px var(--paper)}.tx-v{margin:0;font-weight:500;background:var(--v-blue-w);color:var(--ink);padding:12px 14px;border-radius:8px}.tx-flips{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:10px}.tx-flip{text-align:left;font:inherit;color:var(--ink);background:var(--wash,#F6F8FB);border:1px solid transparent;border-radius:10px;padding:14px;cursor:pointer;display:grid;gap:8px;min-height:84px}.tx-flip:hover{border-color:var(--line-2)}.tx-flip .q{font-weight:600}.tx-flip .a{font-size:.92rem;color:var(--ink-2);border-top:1px solid var(--line);padding-top:8px}.tx-flip[aria-expanded=true]{background:var(--paper);border-color:var(--line-2)}.tx-flip:not([aria-expanded=true]) .q:after{content:"  Tap to reveal";display:block;color:var(--v-blue);font-weight:500;font-size:.82rem;margin-top:6px}.tx-cl{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}.tx-cl h5{margin:0 0 8px;font-size:.95rem;color:var(--ink)}.tx-ci{display:flex;gap:10px;align-items:center;width:100%;text-align:left;font:inherit;font-size:.93rem;color:var(--ink);background:var(--paper);border:1px solid var(--line);border-radius:8px;padding:9px 12px;margin-bottom:7px;cursor:pointer}.tx-ci:before{content:"";flex:none;width:16px;height:16px;border-radius:4px;border:1.5px solid var(--line-2,var(--line))}.tx-ci[aria-pressed=true]{background:var(--v-green-w);border-color:transparent}.tx-ci[aria-pressed=true]:before{background:var(--v-green);border-color:var(--v-green)}.tx-pick{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:10px}.tx-po{font:inherit;text-align:left;border:1px solid var(--line);background:var(--paper);color:var(--ink);border-radius:10px;padding:14px;cursor:pointer;display:grid;gap:4px}.tx-po:hover{border-color:var(--v-blue)}.tx-po b{font-size:1rem}.tx-po span{font-size:.88rem;color:var(--ink-2)}.tx-po.right{border-color:var(--v-green);background:var(--v-green-w)}.tx-po.wrong{border-color:var(--v-red);background:var(--v-red-w);opacity:.85}.tx-pick+.tx-v{margin-top:12px}@media(max-width:640px){.igx{padding:18px}.vf{padding:16px 14px}.vf-mk{padding:0}.vf-dn,.vf-split{grid-template-columns:1fr}.vf-sa{transform:rotate(90deg);justify-self:center}.vf-ring{margin:auto}.vf-br,.vf-wr{grid-template-columns:1fr auto}.vf-bt{grid-column:1/-1;grid-row:2}.vf-cn{width:40%;padding:6px}.vf-cn span:last-child{display:none}.vf-tl li{grid-template-columns:1fr;gap:4px;padding-left:24px}.vf-tl li:before{left:0}.vf-tl li:not(:last-child):after{left:4px}.vf-tl .vf-w{text-align:left;padding:0}.vf-tl li>div{padding:0}.mk-ohlc{margin-left:0}.mk-hd,.mk-notes{padding-left:14px;padding-right:14px}}.example{border:1px solid var(--line)!important;background:var(--wash)}.example .lab{font:italic 400 13px var(--sans)!important;background:none!important;border:0!important;padding:0!important;color:var(--mute)!important}.fails{border:1px solid var(--red-line)!important}.revise{border:1px solid var(--green-line)!important}.prose blockquote{border-left:2px solid var(--line-2)!important}.certificate:after{background:#0b1b3f!important}.dl{grid-template-columns:40px 1fr auto;align-items:center}.dl-btn{font:500 14px var(--sans);color:#fff;background:var(--brand);border:0;border-radius:8px;padding:9px 14px;cursor:pointer;white-space:nowrap}.dl-btn:hover{background:var(--brand-hover)}.dl-btn[disabled]{opacity:.6;cursor:default}.dl small.dl-st{display:block;margin-top:2px}@media(max-width:640px){.dl{grid-template-columns:40px 1fr}.dl-btn{grid-column:2;justify-self:start}}.mk-tip[hidden]{display:none}:root{--mono:"Roboto",system-ui,-apple-system,"Segoe UI",Arial,sans-serif}*{font-variant-ligatures:normal}.lhead .meta,.lbar .mid,.lside .mh,.lrow .id,.lrow .dur,.module>header .mid,.module>header small,.lvl-hero .num,.lvl-card .num,.results .id,.quiz .qn,.exam-q .qn,.stats b,.score .big,.lvl-link .n,.lvl-link .m,.cont .lid,.nextrec small,.side-card .kv dd,.lvl-card dd{font-variant-numeric:tabular-nums;letter-spacing:0!important}.tag{border:0!important;background:none!important;padding:0!important;height:auto!important;font:500 13px var(--sans)!important;letter-spacing:0!important;text-transform:none!important;color:var(--ink-2)!important}.lhead 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.scrim{position:absolute;top:0;right:0;bottom:0;left:0;background:#080e1e80}.modal-card{position:relative;width:min(420px,100%);padding:28px 24px 24px;box-shadow:var(--shadow-lg);background:var(--paper)}.modal-card h2{font-size:22px;margin:0 32px 8px 0}.modal-sub{color:var(--ink-2);font-size:14.5px;margin:0 0 18px}.modal-x{position:absolute;top:10px;right:10px}.modal-card label{display:block;font-size:13.5px;font-weight:500;color:var(--ink-2);margin-bottom:6px}.modal-card input{width:100%;height:46px;border:1px solid var(--line-2);border-radius:var(--r-s);background:var(--paper);color:var(--ink);font:inherit;font-size:17px;padding:0 12px}.modal-card input:focus{outline:2px solid var(--brand);outline-offset:1px;border-color:var(--brand)}.phone-in{display:flex;align-items:stretch}.phone-in span{display:grid;place-items:center;padding:0 12px;border:1px solid var(--line-2);border-right:0;border-radius:var(--r-s) 0 0 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