:root{--kc-1:#2b5fd9;--kc-2:#0f7f6b;--kc-3:#b4530d;--kc-4:#7247d6;--kc-5:#c2336f;--kc-6:#157a8f;--k-tone:var(--kc-1);--k-good:#16804a;--k-good-soft:#e3f6ea;--k-bad:#c0352b;--k-bad-soft:#fde8e6;--k-gold:#e7a600;--k-a:#2b5fd9;--k-b:#d9480f;--k-a-soft:#dfe8ff;--k-b-soft:#ffe6d9;--bit-body:#3d6fe6;--bit-head:#4b7cf0;--bit-screen:#0f1d3d;--bit-face:#7ff0ff;--bit-spark:#ffc23d;--bit-core:#7ff0ff;--bit-shadow:#10182824}@media 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0;font-size:1.5rem;font-weight:800}.kend__muted{color:var(--muted);margin:4px 0}.kend__level{margin:12px 0 6px}.kend .kbar{max-width:360px;margin:0 auto}.kend__levelup{margin:14px 0 0;font-size:1.15rem;font-weight:700}.kend .kbadge{text-align:left;border-color:var(--k-gold);max-width:420px;margin:14px auto 0}.kbadge small{color:var(--k-tone);text-transform:uppercase;letter-spacing:.04em;font-size:.72rem;font-weight:700}.kend__actions{flex-wrap:wrap;justify-content:center;gap:10px;margin-top:22px;display:flex}.kconfetti{z-index:60;pointer-events:none;position:fixed;inset:0;overflow:hidden}.kconfetti span{top:-20px;left:var(--x);background:var(--c);width:10px;height:14px;animation:kconfetti var(--d) ease-in var(--delay) forwards;border-radius:2px;position:absolute}@keyframes kconfetti{to{transform:translateY(105vh) rotate(var(--r))}}.kgame{outline:none}.kpanel{border-radius:var(--radius-lg);border:1px solid 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.kitem__mark{color:var(--k-bad)}.kplot{touch-action:none;user-select:none;border-radius:var(--radius);background:var(--surface-2);width:100%;max-width:640px;height:auto;max-height:62vh;margin-inline:auto;display:block}.kplot__axis{stroke:var(--muted);stroke-width:1.5px}.kplot__grid{stroke:var(--border);stroke-width:1px}.kplot__label{fill:var(--muted);font-size:13px;font-family:var(--font-sans)}.kplot__a{fill:var(--k-a)}.kplot__b{fill:var(--k-b)}.kplot__a-soft{fill:var(--k-a-soft)}.kplot__b-soft{fill:var(--k-b-soft)}.kplot__ring{fill:none;stroke:var(--text);stroke-width:2.5px}.kplot__bad{fill:none;stroke:var(--k-bad);stroke-width:3px}.kplot__line{stroke:var(--text);stroke-width:3px;stroke-linecap:round}.kplot__handle{fill:var(--surface);stroke:var(--text);stroke-width:3px;cursor:grab}.kplot__handle:focus-visible{stroke:var(--focus);stroke-width:5px;outline:none}.kplot__text{fill:var(--text);font-size:14px;font-weight:700;font-family:var(--font-sans)}.kplot__mystery{fill:var(--surface);stroke:var(--text);stroke-width:2.5px;stroke-dasharray:4 3}.kslider{gap:4px;display:grid}.kslider__label{justify-content:space-between;font-weight:600;display:flex}.kslider input[type=range]{width:100%;accent-color:var(--k-tone);min-height:32px}.kgrid-2{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}@media (width<=640px){.kgrid-2{grid-template-columns:1fr}}.kcard-stage{gap:14px;display:grid}.kcard{border-radius:var(--radius-lg);border:2px solid var(--border-strong);background:var(--surface-2);text-align:center;justify-items:center;gap:8px;padding:22px 18px;display:grid;position:relative}@media (prefers-reduced-motion:no-preference){.kcard{animation:.3s ease-out kcard-in}}@keyframes kcard-in{0%{opacity:0;transform:translateY(10px)rotate(-1deg)}}.kcard.is-right{border-color:var(--k-good);background:var(--k-good-soft)}.kcard.is-wrong{border-color:var(--k-bad);background:var(--k-bad-soft)}.kcard__count{color:var(--muted);font-size:.85rem;font-weight:600;position:absolute;top:10px;right:14px}.kcard__emoji{font-size:3.4rem;line-height:1.1}.kcard__text{max-width:34ch;margin:0;font-size:1.2rem;font-weight:600;line-height:1.4}.kcard__why{max-width:46ch;color:var(--text);margin:4px 0 0}.kcard__actions{flex-wrap:wrap;justify-content:center;gap:10px;display:flex}.kcard__btn{min-width:150px;font-size:1.05rem}.kfruit{font-size:2.1rem;line-height:1.1;position:relative}.kfruit:after{content:"";border:2px solid var(--surface);border-radius:50%;width:12px;height:12px;position:absolute;bottom:2px;right:-6px}.kfruit--red:after{background:#e03131}.kfruit--yellow:after{background:#f2c200}.kfruit--green:after{background:#37b24d}.klegend{flex-wrap:wrap;align-items:center;gap:6px 14px;margin:8px 0 0;font-size:.92rem;font-weight:600;display:flex}.klegend__a,.klegend__b{vertical-align:-2px;width:14px;height:14px;display:inline-block}.klegend__a{background:var(--k-a);border-radius:50%}.klegend__b{background:var(--k-b);transform:rotate(45deg)scale(.85)}.kpoint{cursor:pointer;outline:none}.kpoint__hit{fill:#0000}.kpoint:hover .kpoint__hit{fill:color-mix(in srgb, var(--text) 10%, transparent)}.kpoint:focus-visible .kpoint__hit{fill:none;stroke:var(--focus);stroke-width:3px}.kpoint__ok{fill:none;stroke:var(--k-good);stroke-width:3px}.kbox{border-radius:var(--radius);border:2px dashed var(--border-strong);padding:10px}.kbox__title{margin:0 0 8px;font-weight:700}.kbox .kitems{grid-template-columns:repeat(auto-fill,minmax(84px,1fr))}.kscore{gap:4px;margin:12px 0 0;padding:0;list-style:none;display:grid}.kscore li{border-radius:var(--radius-sm);background:var(--surface-2);justify-content:space-between;gap:12px;padding:6px 10px;display:flex}.kplot__link{stroke:var(--text);stroke-width:2px;stroke-dasharray:5 4;opacity:.7}.kpoint.is-selected .kplot__mystery{stroke-width:4px;stroke-dasharray:none;fill:color-mix(in srgb, var(--k-gold) 45%, var(--surface))}.kmark{font-size:20px;font-weight:800;font-family:var(--font-sans)}.kmark--ok{fill:var(--k-good)}.kmark--bad{fill:var(--k-bad)}.kvote{border-radius:var(--radius);background:var(--surface-2);margin:10px 0;padding:10px 14px;font-weight:600}.ktree__node{border-radius:var(--radius);border:2px solid var(--border-strong);background:var(--surface);padding:10px}.ktree__node.is-pure{border-color:var(--k-good);background:var(--k-good-soft)}.ktree__animals{flex-wrap:wrap;gap:6px;display:flex}.ktree__animal{justify-items:center;min-width:58px;font-size:1.7rem;line-height:1.1;display:grid}.ktree__animal small{color:var(--muted);font-size:.7rem}.ktree__q,.ktree__answer,.ktree__done,.ktree__ask{margin:8px 0 6px;font-weight:700}.ktree__answer{color:var(--k-tone);margin-top:0}.ktree__done{color:var(--k-good)}.ktree__ask{color:var(--muted);font-weight:600}.ktree__kids{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;display:grid}@media (width<=640px){.ktree__kids{grid-template-columns:1fr}}.kplot__test{fill:var(--surface);stroke:var(--k-good);stroke-width:2.5px}.kplot__test--bad{stroke:var(--k-bad);stroke-width:3px}.klegend__test{border:2.5px solid var(--k-good);background:var(--surface);border-radius:50%;width:12px;height:12px;display:inline-block}.kneuron-wrap{grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);align-items:center;gap:16px;display:grid}@media (width<=700px){.kneuron-wrap{grid-template-columns:1fr}}.kneuron{width:100%;max-width:420px;height:auto}.kneuron__wire{stroke:var(--k-a);opacity:.45;stroke-linecap:round}.kneuron__wire.is-neg{stroke:var(--k-b)}.kneuron__wire.is-active{opacity:1}.kneuron__in{fill:var(--surface-2);stroke:var(--border-strong);stroke-width:2px}.kneuron__in.is-on{fill:color-mix(in srgb, var(--k-gold) 35%, var(--surface));stroke:var(--k-gold)}.kneuron__icon{font-size:20px}.kneuron__w{fill:var(--text);font-size:15px;font-weight:800;font-family:var(--font-sans)}.kneuron__body{fill:var(--surface-2);stroke:var(--k-tone);stroke-width:3px;transition:fill .2s}.kneuron__body.is-fire{fill:color-mix(in srgb, var(--k-gold) 55%, var(--surface))}.kneuron__sum{fill:var(--text);font-size:16px;font-weight:800;font-family:var(--font-sans)}.kneuron__controls{gap:8px;display:grid}.kneuron__row{justify-content:space-between;align-items:center;gap:10px;font-weight:600;display:flex}.kneuron__row--th{border-top:1px solid var(--border);padding-top:8px}.kstep{align-items:center;gap:6px;display:inline-flex}.kstep__btn{width:44px;padding:0;font-size:1.3rem}.kstep__value{text-align:center;min-width:2.2em;font-size:1.15rem;font-weight:800}.ktable-wrap{overflow-x:auto}.ktable{border-collapse:collapse;text-align:center;width:100%}.ktable th,.ktable td{border-bottom:1px solid var(--border);padding:7px 6px}.ktable tbody tr{cursor:pointer}.ktable tr.is-right td:last-child{color:var(--k-good);font-weight:700}.ktable tr.is-wrong{background:var(--k-bad-soft)}.ktable tr.is-wrong td:last-child{color:var(--k-bad);font-weight:700}.ktable tr.is-selected{outline:3px solid var(--k-tone);outline-offset:-3px}.kplot__ring--learn{stroke:var(--k-gold);stroke-width:4px}.kbergab__fill{fill:color-mix(in srgb, var(--k-tone) 12%, transparent)}.kbergab__curve{fill:none;stroke:var(--k-tone);stroke-width:3px}.kbergab__flag{font-size:18px}.kbergab__jump{stroke:var(--muted);stroke-width:2px;stroke-dasharray:4 4}.kbergab__dot{fill:var(--muted)}.kbergab__ball{fill:var(--surface);stroke:var(--text);stroke-width:2.5px}.kbergab__face{font-size:14px}.kgrid{grid-template-columns:repeat(var(--n), 1fr);aspect-ratio:1;border-radius:var(--radius);background:var(--surface-3);touch-action:none;user-select:none;gap:3px;width:min(100%,300px);padding:6px;display:grid}.kgrid.is-readonly{gap:2px;width:min(100%,120px);padding:3px}.kgrid__cell{background:var(--surface);cursor:pointer;border:0;border-radius:4px;padding:0}.kgrid.is-readonly .kgrid__cell{cursor:default;border-radius:2px}.kgrid__cell.is-on{background:var(--k-tone)}.kgrid__cell.is-off-target{box-shadow:inset 0 0 0 3px var(--k-bad)}.kgrid__cell:focus-visible{outline:3px solid var(--focus);outline-offset:1px}.knumbers{border-radius:var(--radius);background:var(--bit-screen);color:var(--bit-face);font-family:var(--font-mono);letter-spacing:.06em;white-space:pre;margin:0;padding:10px 12px;font-size:clamp(.95rem,.8rem + .8vw,1.25rem);line-height:1.5;overflow-x:auto}.knumbers span.is-diff{color:var(--k-gold);font-weight:800}.kpair{flex-wrap:wrap;align-items:flex-start;gap:16px;display:flex}.kpair>div{gap:6px;display:grid}.ksentence{border-radius:var(--radius);background:var(--bit-screen);color:var(--bit-face);font-family:var(--font-mono);min-height:1.5em;margin:0 0 6px;padding:14px 16px;font-size:clamp(1.05rem,1rem + .6vw,1.35rem)}.kwords{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:8px;margin:8px 0 12px;display:grid}.kword{border:2px solid var(--border-strong);border-radius:var(--radius);background:linear-gradient(90deg, color-mix(in srgb, var(--k-tone) 22%, var(--surface)) var(--p,0%), var(--surface) var(--p,0%));color:var(--text);font:inherit;cursor:pointer;justify-content:space-between;gap:8px;padding:10px 12px;font-weight:700;display:flex;position:relative}.kword:hover{border-color:var(--k-tone)}.kword__p{color:var(--muted);font-weight:600}.kinfo ul{margin:8px 0 0;padding-left:1.2em}.kchips{flex-wrap:wrap;gap:6px;display:flex}.kchip{border:2px solid var(--border);border-radius:12px;place-items:center;width:46px;height:46px;font-size:1.6rem;display:grid}.kchip.is-a{border-color:var(--k-a);background:var(--k-a-soft)}.kchip.is-b{border-color:var(--k-b);background:var(--k-b-soft)}.kpair>.kzeichen__tools{flex:260px;align-content:start}