.rtk{--ink:#0f1b33;--muted:#6a7a92;--card:#fff;--line:#e2e9f2;--scan:#0fb0ef;--ok:#12a891;--err:#dc143c;--paper:#fff;--print:#1d2533;--print-2:#5d6779;--rule:#cfd6e1;--grid:#edf0f5;--pen:#3a4ec4;--ok-ink:#0c9a86;--err-ink:#cf1139;--live:#22c55e;--f-ui:var(--rtk-font-ui),"Manrope",ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;--f-tutor:var(--rtk-font-tutor),"Kalam","Comic Sans MS","Segoe Print",cursive;--f-student:var(--rtk-font-student),"Patrick Hand","Kalam","Comic Sans MS",cursive;aspect-ratio:1280/920;max-width:1280px;color:var(--ink);font-family:var(--f-ui);-webkit-font-smoothing:antialiased;margin:0 auto;position:relative}.rtk.is-portrait{aspect-ratio:720/1040}.rtk-fit{container-type:inline-size}@container (max-width:719.98px){.rtk{aspect-ratio:720/1040}}.rtk:not(.is-ready){overflow:hidden}.rtk .stage{opacity:0}.rtk.is-ready .stage{opacity:1;transition:opacity .35s ease-out}@media (prefers-reduced-motion:reduce){.rtk.is-ready .stage{transition:none}}.rtk.paused *,.rtk.paused :before,.rtk.paused :after{animation-play-state:paused!important}.rtk .sr-only{clip:rect(0 0 0 0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.rtk .stage{transform-origin:0 0;width:1280px;height:920px;font-family:var(--f-ui);color:var(--ink);text-align:left;line-height:1.4;position:absolute;top:0;left:0}.rtk .stage.portrait{width:720px;height:1040px}.rtk .stage *,.rtk .stage :before,.rtk .stage :after{box-sizing:border-box}.rtk .stage p,.rtk .stage h2,.rtk .stage h3,.rtk .stage ul{margin:0}.rtk .stage img{max-width:none}.rtk .stage-bg{pointer-events:none;background:radial-gradient(520px 400px at 78% 40%,#0fb0ef1a,#0000 70%),radial-gradient(520px 420px at 30% 56%,#12a8910f,#0000 70%);position:absolute;inset:0}.rtk .tutor{align-items:center;gap:18px;width:450px;display:flex;position:absolute;top:36px;left:770px}.rtk .avatar{--wave:var(--scan);flex:none;width:112px;height:112px;position:relative}.rtk .avatar[data-mood=err],.rtk .bubble[data-mood=err]{--wave:var(--err)}.rtk .avatar[data-mood=ok],.rtk .bubble[data-mood=ok]{--wave:var(--ok)}.rtk .halo{background:var(--wave);opacity:.16;filter:blur(16px);border-radius:50%;transition:background .4s,opacity .4s;animation:3.4s ease-in-out infinite rtk-breathe;position:absolute;inset:6px}.rtk .avatar.speaking .halo{opacity:.32;animation-duration:1.1s}@keyframes rtk-breathe{0%,to{transform:scale(.9)}50%{transform:scale(1.08)}}.rtk .ripple{border:2px solid var(--wave);opacity:0;border-radius:50%;width:92px;height:92px;position:absolute;top:10px;left:10px}.rtk .ripple.r2{animation-delay:.5s}.rtk .ripple.r3{animation-delay:1s}.rtk .avatar.speaking .ripple{animation:1.5s cubic-bezier(.25,.6,.35,1) infinite rtk-ripple}@keyframes rtk-ripple{0%{opacity:.65;transform:scale(1)}to{opacity:0;transform:scale(1.62)}}.rtk .avatar img{object-fit:cover;border-radius:50%;width:92px;height:92px;transition:box-shadow .5s;position:absolute;top:10px;left:10px;box-shadow:0 0 0 4px #fff,0 12px 26px -10px #0f285073}.rtk .avatar.speaking img{animation:.44s ease-in-out infinite alternate rtk-talk}@keyframes rtk-talk{0%{transform:scale(1)}to{transform:scale(1.035)}}.rtk .avatar.done img{box-shadow:0 0 0 4px #fff,0 0 0 7px var(--ok),0 12px 26px -10px #0f285073}.rtk .live{background:var(--live);border-radius:50%;width:16px;height:16px;position:absolute;bottom:11px;right:9px;box-shadow:0 0 0 3px #fff}.rtk .bubble{border:1px solid var(--line);transform-origin:0;--wave:var(--scan);background:#fff;border-radius:20px;flex:1;min-width:0;padding:13px 20px 15px;position:relative;box-shadow:0 20px 40px -26px #0f285059}.rtk .bubble:before{content:"";border-left:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff;width:16px;height:16px;position:absolute;top:50%;left:-9px;transform:translateY(-50%)rotate(45deg)}.rtk .who{letter-spacing:.1em;text-transform:uppercase;height:14px;color:var(--muted);align-items:center;gap:10px;font-size:11.5px;font-weight:800;display:flex}.rtk .eq{align-items:center;gap:2.5px;height:14px;display:inline-flex}.rtk .eq i{background:var(--wave);border-radius:2px;width:3px;height:3px;transition:background .3s;display:block}.rtk .bubble.speaking .eq i{animation:.6s ease-in-out infinite rtk-eq}.rtk .eq i:nth-child(2){animation-delay:-.12s}.rtk .eq i:nth-child(3){animation-delay:-.3s}.rtk .eq i:nth-child(4){animation-delay:-.45s}.rtk .eq i:nth-child(5){animation-delay:-.2s}@keyframes rtk-eq{0%,to{height:3px}50%{height:14px}}.rtk .say{letter-spacing:.005em;min-height:2.6em;color:var(--ink);margin-top:7px;font-size:21px;font-weight:600;line-height:1.3}.rtk .caret{vertical-align:-3px;background:var(--wave);width:2px;height:1.02em;margin-left:3px;animation:1s steps(2,start) infinite rtk-blink;display:inline-block}@keyframes rtk-blink{to{visibility:hidden}}.rtk .paper{width:600px;height:820px;position:absolute;top:36px;left:96px}.rtk .stack{border-radius:4px;position:absolute;inset:0}.rtk .stack.s2{background:#e3e9f1;transform:translate(22px,13px)rotate(2.6deg);box-shadow:0 0 0 1px #d9e0ea}.rtk .stack.s1{background:#f1f4f8;transform:translate(11px,6px)rotate(1.3deg);box-shadow:0 0 0 1px #e1e7ef}.rtk .sheet{background:var(--paper);color:var(--print);border-radius:4px;padding:24px 28px;font-size:13px;line-height:1.45;position:absolute;inset:0;box-shadow:0 0 0 1px #e2e8f0,0 34px 60px -30px #0f285061,0 10px 22px -14px #0f285033}.rtk .sheet.p2{opacity:0}.rtk .beam{background:var(--scan);opacity:0;z-index:8;pointer-events:none;border-radius:2px;height:3px;position:absolute;top:0;left:-12px;right:-12px;box-shadow:0 0 16px 3px #0fb0ef8c}.rtk .beam:before{content:"";background:linear-gradient(#0fb0ef00,#0fb0ef1f);height:90px;position:absolute;bottom:3px;left:12px;right:12px}.rtk .xh{grid-template-columns:minmax(0,1fr) 138px;gap:18px;display:grid}.rtk .school{color:var(--print-2);font-size:11.5px}.rtk .xh h2{letter-spacing:-.01em;color:#121a28;margin:4px 0 12px;font-size:23px;font-weight:800;line-height:1.15}.rtk .meta{flex-wrap:wrap;align-items:baseline;gap:6px 20px;font-size:13px;display:flex}.rtk .fill{border-bottom:1.5px dashed #9aa3b3;margin-left:4px;padding:0 6px 1px;display:inline-block}.rtk .hwi{font:20px/1 var(--f-student);color:var(--pen)}.rtk .sub2{color:var(--print-2);margin-top:12px;font-size:12.5px}.rtk .sub2 b{color:var(--print);font-weight:800}.rtk .boxes{border:1.5px solid var(--rule);grid-template-rows:1fr 1fr;display:grid}.rtk .box{color:var(--print-2);padding:5px 10px;font-size:12px;position:relative}.rtk .box+.box{border-top:1.5px solid var(--rule)}.rtk .box small{color:var(--print);font-size:11.5px;font-weight:800;position:absolute;bottom:5px;right:10px}.rtk .gradefill{font:700 38px/1 var(--f-tutor);color:var(--ok-ink);clip-path:inset(-12px 100% -12px -20px);position:absolute;top:3px;right:26px}.rtk .gradefill .loop{width:calc(100% + 28px);height:calc(100% + 10px);position:absolute;top:-6px;left:-14px}.rtk .ptsfill{font:700 28px/1 var(--f-tutor);color:var(--ok-ink);clip-path:inset(-10px 100% -10px -10px);position:absolute;top:23px;left:14px}.rtk .hint{color:var(--print-2);font-size:12px;font-style:italic;margin:12px 0 10px!important}.rtk .task{border:1.5px solid var(--rule)}.rtk .task+.task{margin-top:11px}.rtk .trh,.rtk .sub{grid-template-columns:minmax(0,1fr) 46px;display:grid}.rtk .trh{background:#f2f5f9}.rtk .trh>div:first-child{gap:10px;padding:7px 12px;font-size:13.5px;font-weight:700;display:flex}.rtk .trh.q2>div:first-child{padding:6px 12px;font-size:13px;font-weight:500}.rtk .trh.q2 b{font-weight:800}.rtk .pcol{border-left:1.5px solid var(--rule);text-align:right;padding:7px 9px;font-size:13px;font-weight:800;position:relative}.rtk .sub{border-top:1.5px solid var(--rule)}.rtk .sub>div:first-child{min-width:0;padding:9px 12px 11px}.rtk .q b{margin-right:6px;font-weight:800}.rtk .ans{background-color:#fff;background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:21px 21px;border:1px solid #d9dee6;border-radius:3px;margin-top:8px;padding:6px 8px}.rtk .p2 .ans{margin:6px 10px 9px;padding:4px 8px}.rtk .row{grid-template-columns:minmax(0,1fr) 26px 140px;align-items:center;column-gap:8px;height:42px;padding-left:6px;display:grid;position:relative}.rtk .p2 .row{height:34px}.rtk .hw{z-index:2;font:21px/1 var(--f-student);color:var(--pen);white-space:nowrap;justify-self:start;position:relative}.rtk .p2 .hw{font-size:18.5px}.rtk .hw .u{text-underline-offset:4px;-webkit-text-decoration:underline double;text-decoration:underline double;text-decoration-thickness:1.5px}.rtk .ep{display:inline-block;position:relative}.rtk .ep .loop{width:calc(100% + 22px);height:calc(100% + 18px);position:absolute;top:-9px;left:-11px}.rtk .loop{pointer-events:none;overflow:visible}.rtk .loop path{fill:none;stroke:var(--err-ink);stroke-width:2.4px;stroke-linecap:round;vector-effect:non-scaling-stroke;stroke-dasharray:1;stroke-dashoffset:1px}.rtk .gradefill .loop path{stroke:var(--ok-ink)}.rtk .band{transform-origin:0;z-index:0;border-radius:8px;position:absolute;inset:4px 148px 4px 0;transform:scaleX(0)}.rtk .p2 .band{top:3px;bottom:3px}.rtk .row[data-st=ok] .band{background:#0c9a861a}.rtk .row[data-st=err] .band,.rtk .row[data-st=ff] .band,.rtk .row[data-st=warn] .band{background:#dc143c16}.rtk .sweep{z-index:1;opacity:0;border-right:2.5px solid var(--scan);background:linear-gradient(90deg,#0fb0ef00,#0fb0ef47);border-radius:8px 2px 2px 8px;width:0;position:absolute;top:4px;bottom:4px;left:0;box-shadow:10px 0 16px -8px #0fb0efcc}.rtk .mk{z-index:2;place-items:center;width:26px;height:26px;display:grid;position:relative}.rtk .mk svg{width:26px;height:26px;overflow:visible}.rtk .mk path{fill:none;stroke-width:3.2px;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:1;stroke-dashoffset:1px}.rtk .row[data-st=ok] .mk path{stroke:var(--ok-ink)}.rtk .row[data-st=err] .mk path,.rtk .row[data-st=warn] .mk path{stroke:var(--err)}.rtk .ff{font:700 19px/1 var(--f-tutor);color:var(--err);opacity:0;transform:scale(.4)}.rtk .note{z-index:2;font:700 15px/1.1 var(--f-tutor);white-space:nowrap;clip-path:inset(-6px 100% -6px 0);position:relative}.rtk .row[data-st=ok] .note{color:var(--ok-ink)}.rtk .row[data-st=err] .note,.rtk .row[data-st=ff] .note,.rtk .row[data-st=warn] .note{color:var(--err-ink)}.rtk .trow,.rtk .tbl{display:flex}.rtk .trow span,.rtk .tbl em,.rtk .tbl b{text-align:center;border-right:1px solid #d3d9e2;width:46px}.rtk .trow{border-bottom:1px solid #d3d9e2;align-items:center;height:26px;padding-left:6px;font-size:13px;font-weight:600}.rtk .trow span:first-child,.rtk .tbl em{font:800 13px var(--f-ui);color:var(--print);font-style:normal}.rtk .tbl b{font-weight:400}.rtk .gwrap{grid-template-columns:230px minmax(0,1fr);gap:18px;margin-top:8px;display:grid}.rtk .gbox{background:#fff;border:1px solid #d9dee6;border-radius:3px;width:230px;height:230px;position:relative;overflow:hidden}.rtk .gbox svg{width:100%;height:100%;display:block}.rtk .gl{stroke:#eceef3;stroke-width:1px}.rtk .ax{stroke:#4b5568;stroke-width:1.2px}.rtk .axh{fill:#4b5568}.rtk .tk{font:600 8px var(--f-ui);fill:#6b7486}.rtk .ax-l{fill:#3b4558;font-size:10px;font-weight:800}.rtk .stu{fill:none;stroke:var(--pen);stroke-width:2.2px;stroke-linecap:round}.rtk .stu.dash{stroke-width:1.6px;stroke-dasharray:4 3}.rtk .stu.thin{stroke-width:1.8px}.rtk .stu-t{font:15px var(--f-student);fill:var(--pen)}.rtk .tri{fill:#0c9a8626;stroke:var(--ok-ink);stroke-width:2px;stroke-linejoin:round;opacity:0}.rtk .hit{fill:#0c9a8621;stroke:var(--ok-ink);stroke-width:2.5px;stroke-dasharray:1;stroke-dashoffset:1px}.rtk .gsweep{opacity:0;border-right:2.5px solid var(--scan);background:linear-gradient(90deg,#0fb0ef00,#0fb0ef38);width:0;position:absolute;top:0;bottom:0;left:0;box-shadow:10px 0 18px -8px #0fb0efcc}.rtk .gside{min-width:0;position:relative}.rtk .gnotes{flex-direction:column;gap:11px;list-style:none;display:flex;padding:12px 0 0!important}.rtk .gnotes li{font:700 15.5px/1.15 var(--f-tutor);color:var(--ok-ink);clip-path:inset(-6px 100% -6px 0);align-items:flex-start;gap:8px;display:flex}.rtk .gnotes li svg{flex:none;width:17px;height:17px;margin-top:1px}.rtk .gnotes li path{fill:none;stroke:var(--ok-ink);stroke-width:3px;stroke-linecap:round;stroke-linejoin:round}.rtk .bigcheck{width:74px;height:60px;position:absolute;bottom:4px;right:8px;overflow:visible}.rtk .bigcheck path{fill:none;stroke:#1fbfa7;stroke-width:8px;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:1;stroke-dashoffset:1px}.rtk .p2h{color:var(--print-2);border-bottom:1.5px solid var(--rule);justify-content:space-between;margin-bottom:12px;padding-bottom:9px;font-size:11.5px;font-weight:600;display:flex}.rtk .pill{width:96px;height:48px;font:800 23px/1 var(--f-ui);letter-spacing:-.01em;opacity:0;z-index:9;border:2.5px solid;border-radius:24px;place-items:center;margin-top:-24px;display:grid;position:absolute;top:50%;right:-76px;transform:scale(.3);box-shadow:0 12px 24px -12px #0f285059}.rtk .pill.ok{color:var(--ok-ink);border-color:var(--ok);background:#ecfbf8}.rtk .pill.part{color:var(--err);border-color:var(--err);background:#fff0f3}.rtk .pill.sm{border-width:2px;width:76px;height:38px;margin-top:-19px;font-size:18px;right:-80px}.rtk .card{background:var(--card);border:1px solid var(--line);border-radius:20px;position:absolute;box-shadow:0 24px 44px -30px #0f285061}.rtk .card-progress{width:450px;height:372px;padding:20px 22px;top:182px;left:770px}.rtk .cp-head{justify-content:space-between;align-items:baseline;display:flex}.rtk .cp-head h3{color:var(--ink);font-size:16px;font-weight:800}.rtk .cp-head span{color:var(--muted);font-size:12.5px;font-weight:600}.rtk .cp-rows{list-style:none;margin-top:12px!important;padding:0!important}.rtk .cp-rows li{height:36px;color:var(--muted);border-top:1px solid #edf2f7;grid-template-columns:20px 32px minmax(0,1fr) 54px;align-items:center;font-size:14px;font-weight:600;transition:color .3s;display:grid}.rtk .dot{border:2px solid #c9d5e3;border-radius:50%;width:12px;height:12px;transition:background .3s,border-color .3s,box-shadow .3s}.rtk .cp-id{font-weight:800}.rtk .cp-pts{text-align:right;font-variant-numeric:tabular-nums;font-weight:800}.rtk .cp-rows li.active,.rtk .cp-rows li.ok,.rtk .cp-rows li.part{color:var(--ink)}.rtk .cp-rows li.active .dot{border-color:var(--scan);background:var(--scan);box-shadow:0 0 0 5px #0fb0ef2e}.rtk .cp-rows li.ok .dot{border-color:var(--ok);background:var(--ok)}.rtk .cp-rows li.part .dot{border-color:var(--err);background:var(--err)}.rtk .cp-rows li.ok .cp-pts{color:var(--ok-ink)}.rtk .cp-rows li.part .cp-pts{color:var(--err)}.rtk .cp-foot{color:var(--muted);justify-content:space-between;margin-top:14px;font-size:12.5px;font-weight:700;display:flex}.rtk .cp-foot b{color:var(--ink);font-variant-numeric:tabular-nums}.rtk .bar{background:#edf2f7;border-radius:3px;height:6px;margin-top:8px;overflow:hidden}.rtk .bar i{background:linear-gradient(90deg,var(--scan),var(--ok));transform-origin:0;height:100%;display:block;transform:scaleX(0)}.rtk .stage.portrait .tutor{width:640px;top:28px;left:40px}.rtk .stage.portrait .paper{top:168px;left:60px}.rtk .stage.portrait .card-progress{display:none}.rtk .stage.portrait .say{min-height:1.3em}.rtk .mg-toggle{z-index:40;border:1px solid var(--line);width:30px;height:30px;color:var(--ink);cursor:pointer;opacity:.8;background:#ffffffeb;border-radius:50%;place-items:center;padding:0;transition:opacity .2s;display:grid;position:absolute;bottom:6px;right:10px;box-shadow:0 6px 14px -8px #0f285059}.rtk .mg-toggle:hover{opacity:1}.rtk .mg-toggle:focus-visible{outline:2px solid var(--scan);outline-offset:2px;opacity:1}.rtk .mg-toggle svg{fill:currentColor;width:12px;height:12px}@media (prefers-reduced-motion:reduce){.rtk .halo,.rtk .ripple,.rtk .eq i,.rtk .avatar img,.rtk .caret{animation:none!important}}