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.15s;position:relative}.switch:after{content:"";width:24px;height:24px;box-shadow:var(--shadow-1);background:#fff;border-radius:999px;transition:left .15s;position:absolute;top:4px;left:4px}[aria-checked=true]>.switch{background:var(--brand-edge)}[aria-checked=true]>.switch:after{left:24px}.sheet-backdrop{z-index:50;background:var(--backdrop);justify-content:center;align-items:flex-end;animation:.15s fade-in;display:flex;position:fixed;inset:0}.sheet{width:100%;max-width:560px;max-height:calc(100dvh - 24px - var(--safe-t));background:var(--bg);border-radius:var(--r-xl) var(--r-xl) 0 0;box-shadow:var(--shadow-2);flex-direction:column;animation:.22s cubic-bezier(.2,.8,.2,1) slide-up;display:flex}.sheet--full{height:calc(100dvh - 12px - var(--safe-t))}.sheet__handle{background:var(--line-strong);border-radius:999px;flex:none;width:44px;height:5px;margin:10px auto 0}.sheet__head{padding:8px 8px 8px var(--gutter);flex:none;align-items:center;gap:8px;display:flex}.sheet__head h2{flex:1;font-size:1.3rem;font-weight:900}.sheet__body{overscroll-behavior:contain;padding:4px var(--gutter) 20px;flex-direction:column;flex:1;gap:14px;display:flex;overflow-y:auto}.sheet__foot{padding:12px var(--gutter) calc(14px + var(--safe-b));border-top:1.5px solid var(--line);flex:none;gap:10px;display:flex}.sheet__foot>.btn{flex:1}@media (width>=720px){.sheet-backdrop{align-items:center;padding:24px}.sheet{border-radius:var(--r-xl);max-height:calc(100dvh - 48px)}.sheet--full{height:min(860px,100dvh - 48px)}.sheet__handle{display:none}.sheet__head{padding-top:14px}}@media (width>=1024px){.sheet-backdrop:not(.sheet-backdrop--dialog){background:#2a252247;justify-content:flex-end;align-items:stretch;padding:0}.sheet-backdrop:not(.sheet-backdrop--dialog) .sheet{border-radius:var(--r-xl) 0 0 var(--r-xl);max-width:480px;height:100dvh;max-height:none;animation-name:slide-left}.sheet-backdrop:not(.sheet-backdrop--dialog) .sheet--full{max-width:600px}.sheet-backdrop--dialog .sheet{max-width:440px}}@keyframes slide-left{0%{opacity:0;transform:translate(40px)}}@keyframes slide-up{0%{opacity:0;transform:translateY(40px)}}@keyframes fade-in{0%{opacity:0}}@media (prefers-reduced-motion:reduce){*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important}}.status{color:var(--ok);font-size:.9rem;font-weight:700}.card--flush>*+*{border-top:1.5px solid var(--surface-3)}.picks{flex:none;gap:5px;display:flex}.pk{border:1.5px solid var(--line-strong);background:var(--surface);width:44px;height:44px;color:var(--ink);box-shadow:0 2px 0 var(--line-strong);border-radius:12px;padding:0;font-weight:900}.pk[aria-pressed=true]{background:var(--opt-bg);border-color:var(--opt-bg);color:var(--opt-ink)}@media (width<=370px){.picks{gap:3px}}.clamp-2{-webkit-line-clamp:2;-webkit-box-orient:vertical;font-weight:800;line-height:1.3;display:-webkit-box;overflow:hidden}.pair{grid-template-columns:140px minmax(0,1fr);align-items:center;gap:12px 16px;display:grid}.pair__qr{background:#fff;border-radius:12px;width:140px;height:140px;padding:6px}.pair__qr svg{width:100%;height:100%;display:block}.pair__code{letter-spacing:.08em;margin:4px 0;font-size:2rem;font-weight:900}.pair__status{color:var(--muted);margin-top:6px;font-weight:800}.pair__status.is-on{color:var(--ok)}.pair .cluster{grid-column:1/-1}.row-item--btn{width:100%;color:inherit;font:inherit;text-align:left;cursor:pointer;background:0 0;border:0}.sync-status{border-radius:var(--r-md,14px);background:var(--surface-2);align-items:center;gap:10px;padding:12px 14px;font-weight:800;display:flex}.sync-status--saved{background:var(--ok-soft);color:var(--ok)}.sync-status--error{background:var(--danger-soft);color:var(--danger)}.choice{border:1.5px solid var(--line-strong);width:100%;box-shadow:0 3px 0 var(--line);background:var(--surface);color:var(--ink);font:inherit;text-align:left;cursor:pointer;border-radius:18px;align-items:flex-start;gap:12px;padding:14px;display:flex}.choice>span{flex-direction:column;gap:2px;display:flex}.choice:disabled{opacity:.6}.shell{isolation:isolate;flex-direction:column;min-height:100dvh;display:flex;position:relative}.shell__main{width:100%;max-width:760px;padding:0 var(--gutter) calc(var(--nav-h) + var(--safe-b) + 24px);flex:1;margin:0 auto}.topbar{z-index:20;min-height:64px;margin:0 calc(-1 * var(--gutter));padding:calc(8px + var(--safe-t)) var(--gutter) 8px;background:color-mix(in srgb, var(--bg) 82%, transparent);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);align-items:center;gap:10px;display:flex;position:sticky;top:0}.topbar h1{text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0;font-size:1.75rem;overflow:hidden}.logo{flex:none;display:block}.wordmark{letter-spacing:-.02em;color:var(--ink);font-weight:900}.wordmark__scan{color:var(--brand-text)}.class-chip{max-width:55vw}.class-chip span{text-overflow:ellipsis;overflow:hidden}.tabbar{z-index:30;padding:6px 4px calc(10px + var(--safe-b));background:color-mix(in srgb, var(--surface) 92%, transparent);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-top:1px solid var(--line);justify-content:space-around;align-items:flex-end;display:flex;position:fixed;bottom:0;left:0;right:0;box-shadow:0 -8px 24px -18px #143c9666}.tab{min-width:64px;min-height:52px;color:var(--muted);flex-direction:column;justify-content:center;align-items:center;gap:3px;font-size:.75rem;font-weight:750;text-decoration:none;display:flex}.tab__pill{border-radius:999px;place-items:center;width:56px;height:30px;transition:background-color .15s;display:grid}.tab[aria-current=page]{color:var(--brand-text);font-weight:900}.tab[aria-current=page] .tab__pill{background:var(--brand-soft)}.tab--start .tab__fab{background:var(--sun);width:62px;height:62px;color:var(--sun-ink);box-shadow:0 4px 0 var(--sun-edge), var(--shadow-sun);border:3px solid var(--surface);border-radius:22px;place-items:center;margin-top:-30px;display:grid}.tab--start{color:var(--ink)}.flow{flex-direction:column;max-width:760px;min-height:100dvh;margin:0 auto;display:flex}.flow__head{z-index:20;padding:calc(8px + var(--safe-t)) 8px 6px;background:color-mix(in srgb, var(--bg) 82%, transparent);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);align-items:center;gap:4px;display:flex;position:sticky;top:0}.flow__title{flex:1;min-width:0}.flow__title h1{font-size:1.4rem}.flow__body{padding:4px var(--gutter) 24px;flex-direction:column;flex:1;gap:12px;display:flex}.flow__foot{z-index:20;padding:12px var(--gutter) calc(16px + var(--safe-b));background:color-mix(in srgb, var(--bg) 88%, transparent);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-top:1px solid var(--line);flex-direction:column;gap:8px;display:flex;position:sticky;bottom:0}.sidebar,.split__placeholder{display:none}.class-chip--block{justify-content:space-between;width:100%;max-width:none}@media (width>=1024px){.tabbar,.topbar__mobile{display:none}.topbar--home{-webkit-backdrop-filter:none;backdrop-filter:none;background:0 0;min-height:8px;padding:0}.shell{flex-direction:row}.sidebar{background:color-mix(in srgb, var(--surface) 88%, transparent);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-right:1px solid var(--line);flex-direction:column;flex:none;gap:12px;width:248px;height:100dvh;padding:20px 16px;display:flex;position:sticky;top:0;box-shadow:8px 0 30px -24px #143c9680}.sidebar__brand{align-items:center;gap:10px;margin:0 4px 8px;font-size:1.2rem;font-weight:900;display:flex}.sidebar .btn--sun{margin-bottom:10px}.sidebar__nav{flex-direction:column;gap:2px;display:flex}.side-link{border-radius:var(--r-md);min-height:46px;color:var(--ink-2);align-items:center;gap:12px;padding:0 12px;font-weight:800;text-decoration:none;display:flex}.side-link:hover{background:var(--surface-2);color:var(--ink)}.side-link[aria-current=page]{background:var(--brand);color:var(--brand-ink);box-shadow:0 3px 0 var(--brand-edge)}.shell__main{max-width:1280px;padding:12px 32px 48px}.topbar{margin:0;padding:16px 0 8px}.topbar,.shell__main .flow__head{-webkit-backdrop-filter:none;backdrop-filter:none;background:0 0}.split{grid-template-columns:minmax(0,1fr) minmax(400px,.95fr);align-items:start;gap:24px;display:grid}.split__side{position:sticky;top:16px}.split__placeholder{display:flex}.is-selected{outline:3px solid var(--brand);outline-offset:-2.5px}.rows>li.is-selected{background:var(--brand-soft);outline:0;margin:0 -16px;padding:0 16px}.shell__main>.flow{min-height:0;margin:0 auto}.shell__main .flow__head{padding-top:16px}}.pane{background:var(--bg);border:1px solid var(--line-strong);border-radius:var(--r-lg);max-height:calc(100dvh - 96px);box-shadow:var(--shadow-2);flex-direction:column;display:flex;overflow:hidden}.pane .sheet__head{border-bottom:1.5px solid var(--line);padding-top:12px}.pane .sheet__body{padding-top:16px}.pane .sheet__foot{padding-bottom:14px}.pane--empty{text-align:center;min-height:360px;color:var(--muted);border-style:dashed;border-color:var(--line-strong);background:0 0;justify-content:center;align-items:center;gap:10px;padding:32px}.pane--empty h2{color:var(--ink);font-size:1.15rem}.shell--bare .shell__main{max-width:none;padding:0}.sidebar__foot{align-items:center;gap:4px;display:flex}.sidebar__foot .side-link{white-space:nowrap;flex:1;min-width:0}.sidebar__foot .icon-btn,.sidebar__foot .side-link svg{flex:none}.boot{min-height:100dvh;padding:24px var(--gutter);text-align:center;background:var(--bg);color:var(--muted);flex-direction:column;justify-content:center;align-items:center;gap:16px;font-weight:700;display:flex}.boot__logo{background:var(--brand);width:72px;height:72px;color:var(--brand-ink);box-shadow:0 4px 0 var(--brand-edge);border-radius:22px;place-items:center;animation:1.6s ease-in-out 3 boot-pulse;display:grid}.boot p{max-width:34ch}@keyframes boot-pulse{50%{opacity:.8;transform:scale(.94)}}@media (prefers-reduced-motion:reduce){.boot__logo{animation:none}}.modes{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;display:grid}.mode{border:2px solid var(--line);background:var(--surface);color:var(--ink);text-align:left;border-radius:18px;flex-direction:column;align-items:flex-start;gap:8px;padding:14px;font-weight:600;text-decoration:none;display:flex}.mode[aria-pressed=true]{border-color:var(--brand);background:color-mix(in srgb, var(--brand) 6%, var(--surface))}.mode__icon{background:var(--surface-2);border-radius:12px;place-items:center;width:40px;height:40px;display:grid}.mode[aria-pressed=true] .mode__icon{background:var(--brand);color:var(--brand-ink)}.mode__title{font-weight:900}.mode__sub{color:var(--ink-2);font-size:.82rem;line-height:1.35}.num-badge{background:var(--brand);width:30px;height:30px;color:var(--brand-ink);border-radius:999px;flex:none;place-items:center;font-size:.85rem;font-weight:900;display:grid}.num-badge--off{border:2px solid var(--line-strong);background:0 0}label:has(input:focus-visible) .num-badge{outline:3px solid var(--brand-text);outline-offset:2px}.icon-btn:disabled{opacity:.3}.tier-row{align-items:center;gap:12px;min-height:64px;display:flex}.lens-bar{background:var(--scrim);border-radius:999px;gap:4px;padding:4px;display:flex;position:absolute;bottom:36px;left:50%;transform:translate(-50%)}.lens-bar button{color:#f5f8ff;min-width:44px;height:44px;font:inherit;background:0 0;border:0;border-radius:999px;padding:0 10px;font-size:.85rem;font-weight:800}.lens-bar button[aria-pressed=true]{color:#0d1426;background:#f5f8ff}.live{background:var(--camera);flex-direction:column;display:flex;position:fixed;inset:0}.live__camera{flex:1;min-height:0;position:relative}.stage{background:var(--camera);position:absolute;inset:0}.stage video,.stage__overlay{object-fit:contain;pointer-events:none;width:100%;height:100%;position:absolute;inset:0}.stage__placeholder{text-align:center;color:#c9d4ea;flex-direction:column;justify-content:center;align-items:center;gap:14px;padding:24px;font-weight:700;display:flex;position:absolute;inset:0}.live__top{padding:calc(12px + var(--safe-t)) 12px 0;align-items:center;gap:8px;display:flex;position:absolute;top:0;left:0;right:0}.glass{background:var(--scrim);color:#f5f8ff;border:0;border-radius:999px;flex:none;place-items:center;width:44px;height:44px;padding:0;display:grid}.live__status{background:var(--scrim);color:#f5f8ff;border-radius:999px;align-items:center;gap:8px;min-height:36px;margin:0 auto;padding:0 14px;font-size:.875rem;font-weight:800;display:inline-flex}.rec{background:#f26b5e;border-radius:999px;width:9px;height:9px;animation:1.6s ease-in-out 3 pulse}@keyframes pulse{50%{opacity:.35}}.live__question{left:12px;right:12px;top:calc(66px + var(--safe-t));color:#12203f;background:#f5f8fff0;border-radius:14px;align-items:center;gap:8px;max-height:30%;padding:10px 14px;font-weight:800;line-height:1.3;display:flex;position:absolute;overflow:auto}.live__panel{padding:10px var(--gutter) calc(18px + var(--safe-b));border-radius:var(--r-xl) var(--r-xl) 0 0;background:var(--bg);flex-direction:column;gap:14px;margin-top:-22px;display:flex;position:relative}.live__handle{background:var(--line-strong);border-radius:999px;width:44px;height:5px;margin:0 auto}.live__count{justify-content:space-between;align-items:flex-end;gap:12px;display:flex}.live__big{font-size:2.6rem;font-weight:900;line-height:1}.live__big small{color:var(--muted);font-size:1.4rem}@media (width>=900px) and (orientation:landscape){.live{flex-direction:row}.live__panel{border-radius:0;justify-content:flex-end;width:380px;margin-top:0}.live__handle{display:none}}.live--closed{background:var(--bg);min-height:100dvh;position:static}.live--closed .live__camera{display:none}.reveal{flex-direction:column;width:100%;max-width:760px;min-height:100dvh;margin:0 auto;display:flex}.reveal__head{z-index:10;padding:calc(8px + var(--safe-t)) 8px 6px var(--gutter);background:var(--bg);align-items:center;gap:10px;display:flex;position:sticky;top:0}.reveal__crumb{text-overflow:ellipsis;white-space:nowrap;min-width:0;color:var(--muted);flex:1;font-size:.875rem;font-weight:800;overflow:hidden}.dots{flex-wrap:wrap;gap:4px;max-width:40%;display:flex}.dots span{background:var(--line-strong);border-radius:999px;width:8px;height:8px}.dots .done{background:var(--brand)}.dots .now{background:var(--sun)}.reveal__body{padding:4px var(--gutter) 24px;flex-direction:column;flex:1;gap:14px;display:flex}.reveal__q{font-size:1.45rem;line-height:1.25}.reveal__pct{align-items:baseline;gap:8px;display:flex}.reveal__pct strong{color:var(--ok);font-size:2.2rem;font-weight:900;line-height:1}.reveal__foot{padding:12px var(--gutter) calc(16px + var(--safe-b));background:var(--bg);border-top:1.5px solid var(--line);gap:10px;display:flex;position:sticky;bottom:0}.reveal__foot .btn{flex:1;padding:0 12px}.poll-panel{max-height:60dvh;overflow-y:auto}.live--desk{flex-direction:row}.live--desk.live--closed{background:var(--camera);min-height:0;position:fixed}.live--desk.live--closed .live__camera{display:block}.live--desk .live__panel,.live--desk .reveal{background:var(--bg);border-radius:0;flex:none;width:clamp(400px,34vw,500px);height:100dvh;margin:0}.live--desk .live__panel{padding-top:24px}.live--desk .live__handle{display:none}.live__list{overscroll-behavior:contain;flex-direction:column;flex:1;gap:10px;min-height:0;display:flex;overflow-y:auto}.live--desk .reveal{max-width:none;min-height:0;overflow-y:auto}.live--desk .reveal__q{font-size:1.3rem}.next-q{border:2px solid var(--brand-soft)}.next-q__reason{color:var(--brand-text);align-items:center;gap:6px;font-weight:800;display:flex}.next-q__text{font-size:1.05rem;font-weight:800;line-height:1.35}.stray{margin-top:12px}.stray .stack{gap:12px}.stray__actions{margin-top:8px}.live__absent{color:var(--brand-text);font:inherit;text-underline-offset:3px;cursor:pointer;background:0 0;border:0;margin:-13px -4px;padding:13px 4px;text-decoration:underline;display:inline-block}.phonecam__note{left:50%;bottom:calc(16px + var(--safe-b));background:var(--scrim);color:#f5f8ff;text-align:center;border-radius:999px;max-width:calc(100% - 32px);margin:0;padding:8px 14px;font-size:.85rem;font-weight:800;position:absolute;transform:translate(-50%)}.phonecam .phonecam__note{bottom:calc(96px + var(--safe-b))}.phonecam__note--warn{color:#14213d;background:#ffc933}.phonecam__waiting{left:12px;right:12px;top:calc(66px + var(--safe-t));color:#14213d;font:inherit;text-align:left;background:#f5f8fff0;border:0;border-radius:14px;flex-direction:column;align-items:flex-start;gap:2px;padding:10px 14px;display:flex;position:absolute}.phonecam__names{-webkit-line-clamp:2;-webkit-box-orient:vertical;font-size:.9rem;font-weight:700;display:-webkit-box;overflow:hidden}.phonecam__waiting.is-open .phonecam__names{max-height:40vh;display:block;overflow:auto}.phonestage{padding:calc(150px + var(--safe-t)) 24px 40px;text-align:center;color:#f5f8ff;flex-direction:column;justify-content:center;align-items:center;gap:14px;display:flex;position:absolute;inset:0;overflow:auto}.phonestage__qr{background:#fff;border-radius:16px;width:min(220px,52vw);padding:10px;line-height:0}.phonestage__qr svg{width:100%;height:auto}.phonestage h2{margin:0;font-size:1.25rem;font-weight:900}.phonestage p{color:#c9d4ea;max-width:34ch;margin:0;font-weight:700}.phonestage__state{background:var(--scrim);border-radius:999px;align-items:center;gap:8px;padding:6px 14px;font-size:.9rem;font-weight:800;display:inline-flex}.phonestage__state.is-on{color:#fff;background:#0a7a3c}.phonestage__state.is-warn{color:#14213d;background:#ffc933}.phonestage .btn{color:#f5f8ff;background:0 0;border:2px solid #f5f8ff66}.live__top .glass[aria-pressed=true]{background:#0a7a3c}.school-head{align-items:center;gap:12px;display:flex}.school-head__icon{background:var(--brand);width:44px;height:44px;color:var(--brand-ink);border-radius:14px;flex:none;place-items:center;display:grid}.school-code{background:var(--surface-2);border-radius:14px;flex-wrap:wrap;align-items:center;gap:8px 12px;padding:12px 14px;display:flex}.school-code>.muted{flex-basis:100%}.school-code__value{white-space:nowrap;letter-spacing:.12em;flex:1;font-size:1.6rem;font-weight:900}.school-code-input{letter-spacing:.12em;text-transform:uppercase;font-size:1.3rem;font-weight:850}.school-avatar{background:var(--sun-soft);width:36px;height:36px;color:var(--sun-text);border-radius:999px;flex:none;place-items:center;font-size:.8rem;font-weight:900;display:grid}.rows .row-item--btn:disabled{opacity:1;cursor:default}.class-card__head{justify-content:space-between;align-items:center;gap:8px;display:flex}.class-card__head h2{font-size:1.4rem;font-weight:900}.stats{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;display:grid}.stats strong{font-size:1.5rem;font-weight:900;line-height:1.1;display:block}.stats span{color:var(--muted);font-size:.82rem;font-weight:700}.actions{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;display:grid}.action{border:1.5px solid var(--line);background:var(--surface);min-height:76px;color:var(--ink);border-radius:16px;flex-direction:column;justify-content:center;align-items:center;gap:6px;padding:10px 4px;font-size:.82rem;font-weight:800;display:flex}.action svg{color:var(--brand-text)}.action:disabled{opacity:.45}.team-label{color:var(--muted);align-items:center;gap:6px;font-size:.82rem;font-weight:700;display:inline-flex}.card-no{background:var(--surface-2);border-radius:8px;place-items:center;min-width:44px;height:28px;font-size:.82rem;font-weight:800;display:grid}.add-one{align-items:flex-end;gap:8px;display:flex}.file-btn{cursor:pointer}.file-btn:has(input:focus-visible){outline:3px solid var(--brand-text);outline-offset:2px}.student-head{align-items:center;gap:12px;display:flex}.avatar-grid{grid-template-columns:repeat(auto-fill,minmax(48px,1fr));gap:6px;display:grid}.av-pick{background:var(--surface);border:2px solid 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(width>=1024px){.home{grid-template-columns:minmax(0,1.25fr) minmax(320px,1fr);align-items:start;gap:20px 28px;padding-top:16px;display:grid}.home__head{grid-column:1/-1}.home .hero{padding:30px 28px 26px}.home .hero__title{font-size:1.9rem}}.steps__icon{background:var(--brand-soft);width:40px;height:40px;color:var(--brand-text);border-radius:13px;flex:none;place-items:center;display:grid}.mixups__deck{padding-bottom:calc((var(--deck) - 1) * 12px);display:grid}.mixup{background:var(--surface);color:var(--ink);box-shadow:0 4px 0 color-mix(in srgb, var(--g1) 60%, var(--line)), 0 18px 34px -18px color-mix(in srgb, var(--g1) 70%, transparent);transform-origin:50% 100%;border-radius:24px;flex-direction:column;grid-area:1/1;transition:transform .55s cubic-bezier(.3,.9,.3,1),opacity 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16px;display:flex;position:relative}.mixup__q{-webkit-line-clamp:2;-webkit-box-orient:vertical;font-size:.98rem;font-weight:850;line-height:1.3;display:-webkit-box;overflow:hidden}.mixup__body{align-items:center;gap:14px;padding:16px 16px 6px;display:flex}.mixup__count{background:color-mix(in srgb, var(--g1) 16%, var(--surface));width:64px;height:64px;color:var(--gt);text-align:center;box-shadow:inset 0 0 0 2px color-mix(in srgb, var(--g1) 45%, transparent);border-radius:20px;flex:none;place-content:center;font-size:1.7rem;font-weight:900;line-height:1;display:grid}.mixup__count small{color:var(--muted);margin-top:2px;font-size:.68rem;font-weight:850;display:block}.mixup__line{margin:0;font-size:1.08rem;font-weight:700;line-height:1.4}.mixup__line strong{color:var(--gt);font-weight:900}:root[data-theme=dark] .mixup__line strong,:root[data-theme=dark] .mixup__count{color:color-mix(in srgb, var(--g1) 55%, #fff)}@media (prefers-color-scheme:dark){:root:not([data-theme=light]) .mixup__line strong,:root:not([data-theme=light]) .mixup__count{color:color-mix(in srgb, var(--g1) 55%, #fff)}}.mixup__foot{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px 12px;padding:10px 16px 16px;font-size:.86rem;font-weight:800;display:flex}.mixup__ans{background:var(--surface-2);min-width:0;color:var(--ink-2);border-radius:999px;align-items:center;gap:8px;padding:5px 12px 5px 5px;display:inline-flex}.mixup__anstext{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.mixup__key{background:var(--k);width:26px;height:26px;color:var(--ki);border-radius:999px;flex:none;place-items:center;font-size:.8rem;font-weight:900;display:grid}.mixup__tip{color:var(--gt);align-items:center;gap:6px;display:inline-flex}:root[data-theme=dark] .mixup__tip{color:color-mix(in srgb, var(--g1) 55%, #fff)}@media (prefers-color-scheme:dark){:root:not([data-theme=light]) .mixup__tip{color:color-mix(in srgb, var(--g1) 55%, #fff)}}.mixups__dots{justify-content:center;margin-top:-6px;display:flex}.mixups__dots button{background:0 0;border:0;place-items:center;width:44px;height:44px;padding:0;display:grid}.mixups__dots button:before{content:"";background:var(--line-strong);border-radius:999px;width:8px;height:8px;transition:width .3s,background-color .3s}.mixups__dots button.is-on:before{background:var(--gt);width:24px}@media (prefers-reduced-motion:reduce){.mixup,.mixups__dots button{transition:none}.mixup.is-gone,.mixup.is-gone>*{animation:none}.mixup.is-gone>*{visibility:hidden}}.mixups__controls{align-items:center;gap:2px;margin-right:-10px;display:inline-flex}.recent{padding:8px 16px 4px}.recent__head{margin-bottom:2px}.recent__head .section-label{margin-top:0}.recent__rows{box-shadow:none;background:0 0;border:0;border-radius:0;padding:0}.recent__rows>li:first-child{border-top:1.5px solid var(--surface-2)}.checkon{padding:8px 16px 4px}.checkon .section-label{margin-top:0}.checkon__card{background:var(--surface-2);width:32px;height:32px;color:var(--ink-2);border-radius:10px;flex:none;place-items:center;font-size:.85rem;font-weight:900;display:grid}.checkon__sub{-webkit-line-clamp:2;-webkit-box-orient:vertical;display:-webkit-box;overflow:hidden}.checkon__empty{padding:4px 0 14px}.ai-draft{background:var(--sun-soft);border-color:color-mix(in srgb, var(--sun) 45%, var(--line));flex-direction:column;gap:14px;display:flex}.ai-draft__head{align-items:flex-start;gap:12px;display:flex}.ai-draft__icon{background:var(--sun);width:42px;height:42px;color:var(--sun-ink);box-shadow:0 3px 0 var(--sun-edge);border-radius:14px;flex:none;place-items:center;display:grid}.ai-draft__title{font-size:1.1rem;font-weight:800}.ai-draft__form{flex-wrap:wrap;align-items:flex-end;gap:10px;display:flex}.ai-draft__field{flex:220px}.ai-draft__form .btn{flex:none}@media (width<=520px){.ai-draft__form .btn{flex:100%}}.checkon__class{color:var(--muted);font-weight:700}.card.mixups{padding:8px 16px 4px}.card.mixups .section-label{margin-top:0}.spark{align-items:flex-end;gap:8px;height:100px;display:flex}.spark__col{height:100%;color:var(--ink-2);flex-direction:column;flex:1;justify-content:flex-end;align-items:center;gap:6px;font-size:.72rem;font-weight:800;display:flex}.spark__bar{border-radius:8px 8px 4px 4px;width:100%;max-width:44px}.goal{border-radius:var(--r-md);background:var(--brand-soft);color:var(--ink);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;padding:8px 12px;font-size:.9rem;font-weight:800;display:flex}.goal__select{border-radius:var(--r-sm);border:1.5px solid var(--field-line);background:var(--surface) var(--select-arrow) no-repeat right 8px center / 14px;appearance:none;min-height:44px;padding:0 30px 0 10px;font-weight:900}.lesson-card{color:var(--ink);align-items:center;gap:14px;padding:14px 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td{text-align:center;border-bottom:1.5px solid var(--surface-3);white-space:nowrap;padding:8px 10px}.heat th:first-child,.heat td:first-child{text-align:left;background:var(--surface);text-overflow:ellipsis;max-width:140px;font-weight:800;position:sticky;left:0;overflow:hidden}.heat thead th{color:var(--muted);font-weight:850}.heat td.cell{font-variant-numeric:tabular-nums;font-weight:800}.pane__head{border-bottom:1.5px solid var(--line);background:0 0;padding:12px 8px 10px 20px;position:static}.pane__scroll{overscroll-behavior:contain;flex-direction:column;flex:1;gap:12px;padding:16px 20px 24px;display:flex;overflow-y:auto}.iso-svg{width:100%;height:auto;display:block;overflow:visible}.iso-svg path,.iso-svg 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.opt-edit__pick{border-color:var(--ok);background:var(--ok-soft)}.opt-edit.is-right .input{border-color:var(--ok)}.opt-edit__tick{background:var(--ok);color:#fff;border-radius:999px;place-items:center;width:20px;height:20px;display:grid;position:absolute;bottom:-6px;right:-6px}.opt-edit__tag{background:var(--surface-2);width:calc(100% - 56px);min-height:40px;margin-left:56px;font-size:.9rem}.tier-edit .switch-row{min-height:64px}.draft-opts{gap:6px;margin:0;padding:0;list-style:none;display:grid}.draft-opts li{align-items:flex-start;gap:8px;font-size:.92rem;font-weight:600;display:flex}.draft-opts li.is-right{color:var(--ok)}.q-filters{flex-wrap:wrap;gap:8px;display:flex}.q-filters .select{flex:140px;width:auto;min-width:0}.q-group{align-items:center;gap:8px;margin-top:10px;display:flex}.q-group__n{background:var(--surface-2);letter-spacing:0;border-radius:999px;place-items:center;min-width:22px;height:22px;padding:0 6px;font-size:.75rem;display:inline-grid}.q-card{position:relative}.q-check{border:2px solid var(--line-strong);background:var(--surface);border-radius:8px;place-items:center;width:26px;height:26px;display:grid;position:absolute;top:12px;right:12px}.q-check.is-on{background:var(--brand);border-color:var(--brand);color:var(--brand-ink)}.q-card:has(.q-check) .q-card__text{padding-right:34px}.bulkbar{bottom:calc(84px + var(--safe-b));z-index:20;background:var(--surface);border:1.5px solid var(--line-strong);border-radius:18px;align-items:center;gap:8px;padding:10px 12px;display:flex;position:sticky;box-shadow:0 8px 24px #0000002e}.bulkbar__n{white-space:nowrap;font-weight:850}@media (width>=1024px){.bulkbar{bottom:16px}}.link-btn{font:inherit;color:var(--brand-text);cursor:pointer;background:0 0;border:0;padding:0;font-weight:850;text-decoration:underline}.q-card__foot{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;display:flex}.tag--brand{background:var(--brand-soft);color:var(--brand-text)}