@keyframes re-pulse{50%{opacity:.3}}.re-app{font-family:var(--ui, "Vazirmatn", "IBM Plex Sans", system-ui, sans-serif);color:var(--ink);&.re-fullscreen{position:fixed;inset:0;z-index:200;background:var(--bg);overflow:auto}*{box-sizing:border-box}button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;padding:0;-webkit-tap-highlight-color:transparent}.serif{font-family:var(--serif, "Vazirmatn", "IBM Plex Serif", Georgia, serif)}.mono{font-family:var(--mono, "Vazirmatn", "IBM Plex Mono", ui-monospace, monospace);font-variant-numeric:tabular-nums}.btn-primary{background:var(--accent);color:#fff;font-weight:600;font-size:14px;padding:10px 18px;border-radius:10px;box-shadow:var(--shadow-sm);transition:.15s}.btn-primary:hover{background:var(--accent-deep);transform:translateY(-1px)}.btn-ghost{background:var(--surface);color:var(--ink-2);font-weight:500;font-size:14px;padding:10px 18px;border-radius:10px;border:1px solid var(--line)}.btn-ghost:hover{background:var(--surface-2)}.start{min-height:100%;display:flex;align-items:center;justify-content:center;padding:48px 24px;background:radial-gradient(120% 120% at 50% -10%,var(--surface-2),var(--bg) 55%)}.start-inner{width:100%;max-width:920px}.brand{display:flex;align-items:center;gap:12px;margin-bottom:28px}.brand-mark{font-size:26px;font-weight:600;line-height:1;background:var(--ink);color:var(--bg);width:42px;height:42px;border-radius:11px;display:grid;place-items:center}.brand-mark .dot{color:var(--accent)}.brand-name{font-size:11px;letter-spacing:.16em;color:var(--muted)}.start-h{font-size:40px;line-height:1.1;font-weight:600;margin:0 0 14px;letter-spacing:-.01em}.start-sub{font-size:17px;color:var(--ink-2);max-width:560px;line-height:1.6;margin:0 0 32px}.res .res-score{display:flex;gap:34px;align-items:center;flex-wrap:wrap;margin-bottom:30px}.res-ring{--pct: 0;width:150px;height:150px;border-radius:50%;flex:0 0 auto;background:conic-gradient(var(--accent) calc(var(--pct)*1%),var(--line) 0);display:grid;place-items:center}.res-ring-in{width:118px;height:118px;border-radius:50%;background:var(--surface);display:flex;flex-direction:column;align-items:center;justify-content:center;box-shadow:var(--shadow-sm)}.res-pts{font-size:46px;font-weight:600;line-height:1}.res-max{font-size:13px;color:var(--muted)}.res-pct{font-size:14px;color:var(--accent-deep);letter-spacing:.04em;margin:4px 0 14px}.res-parts{display:flex;flex-direction:column;gap:8px}.res-pl{display:flex;align-items:baseline;gap:12px;font-size:14px}.rp-n{color:var(--muted);font-size:11px;min-width:84px;letter-spacing:.06em}.rp-t{color:var(--ink-2);flex:1}.rp-s{color:var(--ink);font-weight:500}.res-actions{display:flex;gap:12px}.run{height:100%;display:flex;flex-direction:column;background:var(--bg)}.topbar{display:flex;align-items:center;gap:18px;padding:0 18px;height:62px;flex:0 0 auto;background:var(--surface);border-bottom:1px solid var(--line);box-shadow:var(--shadow-sm);z-index:20}.tb-left{display:flex;align-items:center;gap:12px;min-width:0}.tb-back{width:34px;height:34px;border-radius:9px;border:1px solid var(--line);font-size:17px;color:var(--ink-2);display:grid;place-items:center;background:var(--surface-2)}.tb-back:hover{background:var(--bg-deep)}.tb-titles{display:flex;flex-direction:column;line-height:1.2;min-width:0}.tb-examtag{display:flex;align-items:center;gap:7px;white-space:nowrap;overflow:hidden;max-width:46vw;margin-bottom:2px}.tet-name{font-family:var(--ui);font-size:10px;font-weight:600;letter-spacing:.2em;text-transform:uppercase;color:var(--ink-2);opacity:.7}.tet-date{font-size:10.5px;font-weight:600;letter-spacing:.04em;color:var(--accent)}.tet-date:before{content:"";display:inline-block;width:3px;height:3px;border-radius:50%;background:var(--accent);opacity:.55;margin-inline-end:7px;vertical-align:middle}.tb-exam{font-size:16px;font-weight:600;white-space:nowrap}.tb-mode{font-family:var(--ui);font-size:11px;font-weight:500;letter-spacing:.04em;color:var(--accent)}.stepper{display:flex;gap:6px;flex:1;justify-content:center;overflow:auto;scrollbar-width:none}.stepper::-webkit-scrollbar{display:none}.step{display:flex;align-items:center;gap:8px;padding:7px 13px;border-radius:10px;border:1px solid transparent;color:var(--muted);white-space:nowrap;transition:.15s}.step:hover{background:var(--surface-2)}.step.on{background:var(--accent-tint);border-color:var(--accent-soft);color:var(--accent-deep)}.step.done .step-n{background:var(--green);color:#fff;border-color:var(--green)}.step-n{font-size:11px;font-weight:500;width:22px;height:22px;border-radius:6px;border:1px solid var(--line);display:grid;place-items:center;background:var(--surface)}.step.on .step-n{background:var(--accent);color:#fff;border-color:var(--accent)}.step-t{font-size:13px;font-weight:500}.tb-right{display:flex;align-items:center;gap:12px}.timer{display:flex;align-items:center;gap:8px;font-size:16px;font-weight:500;color:var(--ink);background:var(--surface-2);border:1px solid var(--line);padding:7px 13px;border-radius:10px}.timer-dot{width:8px;height:8px;border-radius:50%;background:var(--green)}.timer.low{color:var(--accent-deep);background:var(--accent-tint);border-color:var(--accent-soft)}.timer.low .timer-dot{background:var(--accent);animation:re-pulse 1s infinite}.tb-score{font-size:13px;color:var(--ink-2);background:var(--gold-soft);border:1px solid var(--gold);border-radius:8px;padding:6px 11px}.pane-switch{display:none}.split{flex:1;display:flex;min-height:0}.pane{height:100%;min-width:0}.pane-read{flex:1.05;background:var(--surface-2)}.pane-quiz{flex:1;display:flex;flex-direction:column;background:var(--bg)}.pane-div{width:1px;background:var(--line);flex:0 0 auto}.split.solo .pane-quiz{background:var(--surface-2)}.split.solo .q-doc{max-width:780px}.read-scroll{height:100%;overflow:auto}.read-scroll::-webkit-scrollbar{width:10px}.read-scroll::-webkit-scrollbar-thumb{background:var(--line);border-radius:8px;border:3px solid var(--surface-2)}.read-doc{max-width:620px;margin:0 auto;padding:38px 40px 80px}.read-kicker{font-size:11px;letter-spacing:.18em;color:var(--muted);margin-bottom:8px}.read-title{font-size:30px;font-weight:600;margin:0 0 22px;letter-spacing:-.01em}.read-sec{margin-bottom:26px;scroll-margin-top:14px}.read-h{font-size:21px;font-weight:600;margin:30px 0 12px;color:var(--ink);padding-bottom:8px;border-bottom:2px solid var(--accent-soft);overflow-wrap:break-word;hyphens:auto}.read-h4{font-size:17px;font-weight:600;margin:20px 0 8px;color:var(--accent-deep)}.read-p{font-family:var(--serif);font-size:16.5px;line-height:1.72;color:var(--ink-2);margin:0 0 13px;text-wrap:pretty}.read-empty{padding:60px;color:var(--muted);text-align:center}.q-doc{max-width:660px;margin:0 auto;padding:34px 36px 40px}.q-head{margin-bottom:24px;padding-bottom:20px;border-bottom:1px solid var(--line)}.q-head-row{display:flex;align-items:center;gap:12px;margin-bottom:14px}.q-badge{font-size:11px;letter-spacing:.1em;background:var(--ink);color:var(--bg);padding:5px 11px;border-radius:7px;font-weight:500}.q-title{font-size:26px;font-weight:600;margin:0;letter-spacing:-.01em}.instr{margin:0;padding-left:18px;display:flex;flex-direction:column;gap:5px}.instr li{font-size:14px;color:var(--ink-2);line-height:1.5}.instr-pts{font-size:11px;letter-spacing:.1em;color:var(--gold);margin-top:12px;font-weight:500}.qbody{display:flex;flex-direction:column;gap:16px}.q-num{font-size:13px;font-weight:500;color:var(--accent);width:26px;height:26px;border-radius:7px;background:var(--accent-tint);display:grid;place-items:center;flex:0 0 auto}.q-text{font-size:15.5px;line-height:1.5;color:var(--ink);font-weight:500}.sa-group{display:flex;flex-direction:column;gap:12px}.sa-under{display:flex;align-items:center;gap:10px;margin:12px 0 2px}.sa-under-k{font-size:10px;letter-spacing:.14em;color:var(--muted)}.sa-under-l{font-size:13px;font-weight:600;color:var(--accent-deep);text-decoration:none;border-bottom:1px dashed var(--accent-soft)}.sa-under-pg{font-size:11px;color:var(--muted-2);letter-spacing:.04em;margin-left:auto}.sa-q{display:flex;gap:12px;background:var(--surface);border:1px solid var(--line);border-radius:13px;padding:14px 15px;box-shadow:var(--shadow-sm)}.sa-main{flex:1;display:flex;flex-direction:column;gap:9px}.sa-input{width:100%;font-size:15px;padding:9px 12px;border-radius:9px;border:1px solid var(--line);background:var(--surface-2);color:var(--ink);outline:none}.sa-input:focus{border-color:var(--accent);background:var(--surface);box-shadow:0 0 0 3px var(--accent-tint)}.sa-input:disabled{opacity:.85}.sa-q.is-ok{border-color:var(--green);background:var(--green-soft)}.sa-q.is-bad{border-color:var(--accent-soft)}.model-ans{font-size:13.5px;color:var(--ink-2);background:var(--surface-2);border-radius:8px;padding:8px 11px;line-height:1.5}.ma-k{font-size:10px;letter-spacing:.1em;color:var(--green);margin-right:6px;font-weight:500}.is-bad .ma-k{color:var(--accent-deep)}.mcq-q{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px 17px;box-shadow:var(--shadow-sm)}.mcq-stem{display:flex;gap:11px;align-items:baseline;margin-bottom:13px}.mcq-stem .q-num{display:inline-grid}.opts{display:flex;flex-direction:column;gap:8px}.opt{display:flex;align-items:flex-start;gap:11px;text-align:left;padding:12px 13px;border-radius:11px;border:1.5px solid var(--line);background:var(--surface-2);transition:.13s}.opt:hover{border-color:var(--muted-2)}.opt-key{font-size:12px;font-weight:500;width:24px;height:24px;border-radius:6px;border:1px solid var(--line);background:var(--surface);display:grid;place-items:center;flex:0 0 auto;color:var(--muted)}.opt-text{font-size:14.5px;line-height:1.45;color:var(--ink-2);flex:1}.opt-sel{border-color:var(--accent);background:var(--accent-tint)}.opt-sel .opt-key{background:var(--accent);color:#fff;border-color:var(--accent)}.opt-correct{border-color:var(--green);background:var(--green-soft)}.opt-correct .opt-key{background:var(--green);color:#fff;border-color:var(--green)}.opt-wrong{border-color:var(--accent);background:var(--accent-tint)}.opt-wrong .opt-key{background:var(--accent);color:#fff;border-color:var(--accent)}.opt-mark{font-size:15px;font-weight:700;color:var(--green);align-self:center}.opt-wrong .opt-mark{color:var(--accent-deep)}.why{font-size:13px;color:var(--ink-2);margin-top:11px;background:var(--surface-2);border-radius:8px;padding:9px 11px;line-height:1.5}.ins-passage{font-family:var(--serif)}.ins-passage .read-p{margin-bottom:11px}.ins-slot{display:flex;align-items:flex-start;gap:10px;margin:11px 0;padding:11px 13px;border-radius:11px;border:1.5px dashed var(--muted-2);background:var(--surface)}.ins-slot.filled{border-style:solid;border-color:var(--accent-soft);background:var(--accent-tint)}.ins-slot.is-ok{border-style:solid;border-color:var(--green);background:var(--green-soft)}.ins-slot.is-bad{border-style:solid;border-color:var(--accent);background:var(--accent-tint)}.ins-slot.drag-over,.ins-gbox.drag-over{border-color:var(--accent)!important;background:var(--accent-tint)!important;border-style:dashed!important}.ins-slot-n{font-size:13px;font-weight:500;width:26px;height:26px;border-radius:7px;background:var(--ink);color:var(--bg);display:grid;place-items:center;flex:0 0 auto}.ins-select{font-family:var(--ui);font-size:14px;font-weight:600;padding:6px 10px;border-radius:8px;border:1px solid var(--line);background:var(--surface-2);color:var(--ink)}.ins-fill{display:flex;gap:11px;align-items:flex-start;flex:1}.ins-fill-text{font-family:var(--serif);font-size:15px;line-height:1.55;color:var(--ink);flex:1}.ins-facit-line{display:block;margin-top:6px;padding-top:6px;border-top:1px dashed var(--line);color:var(--ink-2);font-size:14px}.ins-chip{font-size:14px;font-weight:700;min-width:28px;height:28px;padding:0 8px;border-radius:8px;background:var(--accent);color:#fff;display:grid;place-items:center;cursor:grab;flex:0 0 auto}.ins-chip:active{cursor:grabbing}.ins-chip.chip-ok{background:var(--green)}.ins-chip.chip-bad{background:var(--accent)}.ins-grid{margin-top:24px;padding-top:18px;border-top:1px solid var(--line)}.ins-grid-h{font-size:10px;letter-spacing:.12em;color:var(--muted);margin-bottom:12px}.ins-grow{display:grid;gap:10px}.ins-gcol{display:flex;flex-direction:column;align-items:center;gap:7px}.ins-gn{font-size:17px;font-weight:700;color:var(--ink);font-family:var(--mono);min-width:30px;height:30px;border-radius:8px;background:var(--bg-deep);border:1px solid var(--line);display:grid;place-items:center}.ins-gselect option:disabled,.ins-select option:disabled{color:var(--muted-2)}.ins-gbox{width:100%;min-height:62px;display:grid;place-items:center;padding:8px;border-radius:11px;border:1.5px dashed var(--muted-2);background:var(--surface)}.ins-gbox.filled{border-style:solid;border-color:var(--accent-soft);background:var(--accent-tint)}.ins-gbox.is-ok{border-style:solid;border-color:var(--green);background:var(--green-soft)}.ins-gbox.is-bad{border-style:solid;border-color:var(--accent);background:var(--accent-tint)}.ins-gchip{font-size:22px;font-weight:700;min-width:42px;height:42px;padding:0 10px;border-radius:10px;background:var(--accent);color:#fff;display:grid;place-items:center;cursor:grab}.ins-gbox.is-ok .ins-gchip{background:var(--green)}.ins-gbox.is-bad .ins-gchip{background:var(--accent)}.ins-gchip:active{cursor:grabbing}.ins-gselect{font-family:var(--ui);font-size:14px;font-weight:600;padding:6px 10px;border-radius:8px;border:1px solid var(--line);background:var(--surface-2);color:var(--ink)}.ins-gfacit{font-size:12px;color:var(--green);font-weight:600;margin-top:5px}.ins-grid-hint{font-size:11px;color:var(--muted);margin-top:11px;text-align:center;letter-spacing:.02em}.bank{margin-top:24px;display:flex;flex-direction:column;gap:8px;padding-top:18px;border-top:1px solid var(--line)}.bank.drag-over{outline:2px dashed var(--muted-2);outline-offset:4px;border-radius:12px}.bank-h{font-size:10px;letter-spacing:.12em;color:var(--muted);margin-bottom:4px}.bank-item{display:flex;gap:11px;align-items:flex-start;padding:11px 13px;border-radius:11px;border:1px solid var(--line);background:var(--surface)}.bank-item.used{opacity:.5;background:var(--surface-2)}.bank-item.dist{border-color:var(--muted-2);background:repeating-linear-gradient(45deg,var(--surface-2),var(--surface-2) 7px,var(--bg-deep) 7px,var(--bg-deep) 8px)}.bank-item.draggable{cursor:grab}.bank-item.draggable:active{cursor:grabbing}.bank-item.draggable:hover{border-color:var(--accent-soft);box-shadow:var(--shadow-sm)}.bank-key{font-size:13px;font-weight:600;width:26px;height:26px;border-radius:7px;background:var(--accent-tint);color:var(--accent-deep);display:grid;place-items:center;flex:0 0 auto}.bank-text{font-size:13.5px;line-height:1.5;color:var(--ink-2);flex:1;font-family:var(--serif)}.bank-tag{font-size:10px;letter-spacing:.08em;color:var(--accent);align-self:center;white-space:nowrap}.dist-tag{color:var(--muted)}.fig{text-align:center;background:repeating-linear-gradient(45deg,var(--surface-2),var(--surface-2) 9px,var(--bg-deep) 9px,var(--bg-deep) 10px);border:1px solid var(--line);border-radius:6px;display:grid;place-items:center;min-height:120px;margin:14px 0}.fig-img{display:block;max-width:100%;width:auto;max-height:430px;margin:2px auto 8px;border-radius:12px;box-shadow:var(--shadow-md)}.fig:has(.fig-img){background:none;border:none;border-radius:0;height:auto}.fig-cap{font-size:11px;color:var(--muted);letter-spacing:.04em;background:var(--surface);padding:5px 11px;border-radius:20px;border:1px solid var(--line)}.cov-fig .fig-img.cov-img{max-height:300px;margin-bottom:12px}.cov-fig:has(.cov-img){height:auto}.cloze-passage{font-family:var(--serif);font-size:16.5px;line-height:2.1;color:var(--ink-2);margin-bottom:6px}.cz-gap{display:inline-flex;align-items:center;gap:5px;background:var(--surface);border:1.5px solid var(--line);border-radius:8px;padding:1px 7px 1px 4px;margin:0 2px;vertical-align:baseline}.cz-n{font-size:10px;font-weight:500;background:var(--ink);color:var(--bg);border-radius:5px;padding:1px 5px}.cz-gap.cz-filled{border-color:var(--accent-soft);background:var(--accent-tint)}.cz-ex{border-style:dashed;border-color:var(--muted-2);font-family:var(--ui);font-size:14px;color:var(--muted)}.cz-select{font-family:var(--ui);font-size:14px;font-weight:500;border:none;background:transparent;color:var(--accent-deep);outline:none;padding:3px 2px}.cz-ok{border-color:var(--green);background:var(--green-soft);font-family:var(--ui);font-size:14px}.cz-bad{border-color:var(--accent);background:var(--accent-tint);font-family:var(--ui);font-size:14px}.cz-facit{color:var(--green);font-style:normal;font-weight:600}.cz-grid{margin-top:24px;padding-top:18px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:7px}.cz-grid-h{font-size:10px;letter-spacing:.12em;color:var(--muted);margin-bottom:3px}.cz-row{display:grid;grid-template-columns:30px 1fr;gap:6px;align-items:center}.cz-cells{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;align-items:stretch;min-width:0}.cz-row-n{align-self:center;font-size:13px;font-weight:500;color:var(--muted);text-align:center}.cz-cell{display:flex;align-items:center;gap:6px;font-size:13px;padding:8px 9px;border-radius:8px;border:1.5px solid var(--line);background:var(--surface-2);color:var(--ink-2);text-align:left;line-height:1.2}.cz-cell:hover{border-color:var(--muted-2)}.cz-cell-k{font-size:10px;color:var(--muted-2)}.cell-sel{border-color:var(--accent);background:var(--accent-tint);color:var(--accent-deep)}.cell-correct{border-color:var(--green);background:var(--green-soft);color:var(--ink)}.cell-wrong{border-color:var(--accent);background:var(--accent-tint)}.cz-row.is-ex{position:relative}.cz-row.is-ex .cz-cell{opacity:.5;cursor:default}.cz-row.is-ex .cz-cell.cell-correct{opacity:1}.cz-ex-tag{position:absolute;top:-11px;right:2px;font-size:9px;letter-spacing:.12em;color:var(--muted)}.cz-fa{margin-top:14px;padding:14px 16px;background:var(--surface);border:1px solid var(--line);border-radius:12px;font-size:15px;color:var(--ink)}.qfoot{flex:0 0 auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:13px 22px;border-top:1px solid var(--line);background:var(--surface)}.prog{font-size:12px;color:var(--muted);letter-spacing:.04em}.qfoot-nav{display:flex;gap:10px}.reveal-bar{display:flex;justify-content:flex-end;margin-bottom:4px}.facit-toggle{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:600;color:var(--muted);background:var(--surface-2);border:1px dashed var(--line);border-radius:8px;padding:7px 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