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var(--color-math-result);border-radius:4px;color:var(--color-math-result);font-size:15px}.k5calc-place-table{display:grid;gap:0;margin-top:var(--space-4);overflow:hidden;border:2px solid var(--border-card);border-radius:var(--radius-card)}.k5calc-place-row{display:grid;grid-template-columns:minmax(54px,.65fr) repeat(3,minmax(0,1fr));align-items:center;min-height:52px;border-top:1px solid var(--border-subtle)}.k5calc-place-row:first-child{border-top:0}.k5calc-place-row>*{padding:10px 12px;text-align:center;font-variant-numeric:tabular-nums}.k5calc-place-row>*+*{border-left:1px solid var(--border-subtle)}.k5calc-place-row.is-head{min-height:34px;background:var(--bg-sunken);color:var(--text-muted);font-size:12px;font-weight:850;letter-spacing:.045em;text-transform:uppercase}.k5calc-place-row:not(.is-head) b{color:var(--text-primary);font-size:1.05rem;font-weight:950}.k5calc-place-row:not(.is-head) span{color:var(--text-secondary);font-weight:750}.k5calc-place-row:not(.is-head) strong{color:var(--text-primary);font-size:1.05rem;font-weight:900}.k5calc-place-row.is-carry{background:color-mix(in srgb,var(--color-accent) 10%,var(--bg-card))}.k5calc-place-row.is-carry strong{color:var(--color-visual-warning-strong)}.k5calc-carry{display:flex;align-items:center;justify-content:center;gap:var(--space-3);margin-top:var(--space-3);padding:10px 14px;border:1px solid var(--color-visual-warning-strong);border-radius:var(--radius-segment);background:color-mix(in srgb,var(--color-visual-warning) 10%,var(--bg-card));color:var(--text-secondary);font-variant-numeric:tabular-nums}.k5calc-carry i{color:var(--color-visual-warning-strong);font-style:normal;font-weight:900}.k5calc-carry strong{color:var(--text-primary)}.k5calc-sub-caption{margin-top:var(--space-5);color:var(--text-muted);font-size:12px;font-weight:800}.k5calc-sub-bar{display:flex;width:100%;min-height:92px;margin-top:var(--space-2);overflow:hidden;border:2px solid var(--border-card);border-radius:var(--radius-card)}.k5calc-sub-bar>div{display:flex;flex-direction:column;align-items:center;justify-content:center;min-width:0;padding:var(--space-3)}.k5calc-sub-bar b{font-size:clamp(1rem,2vw,1.35rem);font-weight:950;font-variant-numeric:tabular-nums}.k5calc-sub-bar small{margin-top:2px;font-size:12px;font-weight:800;text-transform:uppercase}.k5calc-sub-bar .is-removed{background:color-mix(in srgb,var(--color-visual-warning) 42%,var(--bg-card));color:var(--text-primary)}.k5calc-sub-bar .is-rest{border-left:2px solid var(--border-card);background:color-mix(in srgb,var(--color-visual-primary) 20%,var(--bg-card));color:var(--text-primary)}.k5calc-array-shell{display:grid;grid-template-columns:1fr auto;grid-template-rows:auto 1fr;gap:7px 10px;width:min(100%,680px);margin:var(--space-5) auto 0}.k5calc-array-top,.k5calc-array-side{color:var(--text-muted);font-size:12px;font-weight:850}.k5calc-array-top{grid-column:1;text-align:center}.k5calc-array-side{grid-column:2;grid-row:2;align-self:center;writing-mode:vertical-rl;transform:rotate(180deg)}.k5calc-array{--k5calc-split: 50%;position:relative;grid-column:1;grid-row:2;display:grid;gap:2px;min-height:clamp(160px,24vw,250px);padding:5px;border:2px solid var(--border-card);border-radius:var(--radius-card);background:var(--bg-sunken)}.k5calc-array i{min-width:0;min-height:0;border:1px solid color-mix(in srgb,var(--color-visual-primary-strong) 55%,var(--border-subtle));border-radius:2px;background:color-mix(in srgb,var(--color-visual-primary) 24%,var(--bg-card))}.k5calc-array.is-split:after{content:"";position:absolute;top:-5px;bottom:-5px;left:var(--k5calc-split);width:0;border-left:3px dashed var(--color-visual-warning-strong);transform:translate(-1px);pointer-events:none}.k5calc-commute{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:var(--space-3);margin-top:var(--space-4);color:var(--text-primary);font-size:clamp(1rem,1.8vw,1.3rem);font-weight:900;text-align:center;font-variant-numeric:tabular-nums}.k5calc-commute i{color:var(--color-accent);font-style:normal;font-size:1.4rem}.k5calc-groups{display:grid;grid-template-columns:repeat(auto-fit,minmax(118px,1fr));gap:var(--space-3);margin-top:var(--space-5)}.k5calc-group{min-width:0;min-height:112px;padding:12px;border:1px solid var(--border-subtle);border-radius:var(--radius-card);background:var(--bg-sunken)}.k5calc-group>b,.k5calc-group>span{display:block}.k5calc-group>b{color:var(--text-primary);font-size:12px;font-weight:900}.k5calc-group>span{margin-top:2px;color:var(--text-muted);font-size:12px;font-weight:750}.k5calc-group>div{display:flex;flex-wrap:wrap;align-content:flex-start;gap:4px;margin-top:10px}.k5calc-group i{width:11px;height:11px;border:1px solid var(--border-card);border-radius:2px;background:var(--color-visual-primary)}.k5calc-group em{color:var(--text-muted);font-size:12px;font-style:normal;font-weight:850}.k5calc-group.is-rest{border-color:var(--color-visual-warning-strong);background:color-mix(in srgb,var(--color-visual-warning) 10%,var(--bg-card))}.k5calc-group.is-rest i{background:var(--color-visual-warning)}.k5calc-complement{display:grid;grid-template-columns:repeat(20,minmax(0,1fr));gap:3px;min-height:118px;margin-top:var(--space-5);padding:6px;border:2px solid var(--border-card);border-radius:var(--radius-card);background:var(--bg-sunken)}.k5calc-complement i{border:1px solid var(--color-visual-primary-strong);border-radius:2px;background:color-mix(in srgb,var(--color-visual-primary) 28%,var(--bg-card))}.k5calc-complement i.is-extra{border:2px dashed var(--color-visual-warning-strong);background:repeating-linear-gradient(-45deg,color-mix(in srgb,var(--color-visual-warning) 24%,var(--bg-card)) 0 6px,transparent 6px 12px),var(--bg-card)}.k5calc-complement-labels{display:flex;justify-content:space-between;gap:var(--space-3);margin-top:7px;color:var(--text-muted);font-size:12px;font-weight:750}.k5calc-complement-labels b{color:var(--text-primary)}.k5calc-smart-path{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;align-items:stretch;gap:var(--space-3);margin-top:var(--space-5)}.k5calc-smart-path>div{display:grid;align-content:center;min-height:76px;padding:12px;border:1px solid var(--border-subtle);border-radius:var(--radius-card);background:var(--bg-sunken);text-align:center}.k5calc-smart-path>i{align-self:center;color:var(--text-muted);font-style:normal;font-size:1.4rem;font-weight:900}.k5calc-smart-path span{color:var(--text-muted);font-size:12px;font-weight:850;letter-spacing:.04em;text-transform:uppercase}.k5calc-smart-path strong{margin-top:4px;color:var(--text-primary);font-size:clamp(1rem,1.7vw,1.3rem);font-weight:950}.k5calc-smart-path .is-result{border-color:var(--color-math-result);background:color-mix(in srgb,var(--color-math-result) 9%,var(--bg-card))}.k5calc-smart-path .is-result strong{color:var(--color-math-result)}.k5calc-estimate-flow{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;align-items:stretch;gap:var(--space-3);margin-top:var(--space-5)}.k5calc-estimate-flow>div{display:grid;align-content:center;gap:5px;min-height:112px;padding:14px;border:1px solid var(--border-subtle);border-radius:var(--radius-card);background:var(--bg-sunken)}.k5calc-estimate-flow>i{align-self:center;color:var(--text-muted);font-style:normal;font-size:1.4rem}.k5calc-estimate-flow span{color:var(--text-muted);font-size:12px;font-weight:850;letter-spacing:.04em;text-transform:uppercase}.k5calc-estimate-flow strong{color:var(--text-primary);font-size:clamp(.95rem,1.6vw,1.2rem);font-weight:900;font-variant-numeric:tabular-nums}.k5calc-estimate-flow small{color:var(--color-math-result);font-size:12px;font-weight:850}.k5calc-estimate-flow .is-estimate{border-color:var(--color-visual-warning-strong);background:color-mix(in srgb,var(--color-visual-warning) 8%,var(--bg-card))}.k5calc-estimate-flow .is-exact{border-color:var(--color-math-result);background:color-mix(in srgb,var(--color-math-result) 8%,var(--bg-card))}.k5calc-operation-nav{width:min(100%,840px);margin-inline:auto}.lu-stage .k5calc-operation-nav .lu-segment{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));width:100%;gap:3px;padding:4px;border:var(--neo-border-d1) solid var(--border-card);background:var(--bg-card);box-shadow:var(--neo-shadow-d1)}.lu-stage .k5calc-operation-nav .lu-segment button{min-width:0;min-height:44px;padding:8px 10px;white-space:normal;line-height:1.15}.k5calc-controls{display:grid;gap:var(--space-4);min-width:0;align-content:start}.lu-stage .k5calc-controls .zahlen-stepper{border:var(--neo-border-d1) solid var(--border-card);border-radius:var(--radius-card);background:var(--bg-card);box-shadow:var(--neo-shadow-d1)}.k5calc-controls .zahlen-stepper-btn{min-width:44px;min-height:44px}.k5calc-controls .zahlen-stepper-eingabe{min-height:44px}.k5calc-controls .zahlen-stepper-preset-pill{min-height:34px;border-radius:var(--radius-segment)}.k5calc-control-note{margin:0;padding:10px 0 10px 13px;border-left:3px solid var(--border-subtle);color:var(--text-muted);font-size:12px;line-height:1.45}@media (min-width: 1100px){.k5calc-workshop.is-explore .k5calc-layout{grid-template-columns:minmax(0,1.45fr) minmax(300px,360px);align-items:start}.k5calc-workshop.is-explore .k5calc-stage{position:sticky;top:24px}}@media (min-width: 1700px){.k5calc-workshop{width:min(100%,1280px)}.k5calc-workshop.is-explore .k5calc-layout{grid-template-columns:minmax(0,1.6fr) 370px}}@media (min-width: 641px) and (max-width: 1099px){.k5calc-workshop.is-explore .k5calc-controls{grid-template-columns:repeat(2,minmax(0,1fr))}.k5calc-workshop.is-explore .k5calc-controls>:nth-child(3),.k5calc-workshop.is-explore .k5calc-control-note{grid-column:1 / -1}}@media (max-width: 640px){.k5calc-workshop{gap:var(--space-3)}.k5calc-stage{padding:14px;border-radius:10px;box-shadow:3px 3px 0 var(--shadow-ink)}.k5calc-stage-head{gap:var(--space-2)}.k5calc-stage-head strong{font-size:clamp(1.1rem,6vw,1.45rem)}.k5calc-stage-head span{font-size:12px}.k5calc-place-row{grid-template-columns:48px repeat(3,minmax(0,1fr));min-height:45px}.k5calc-place-row>*{padding:8px 5px}.k5calc-place-row.is-head{min-height:30px}.k5calc-carry{gap:7px;padding:9px 8px;font-size:12px}.k5calc-equation{gap:8px;min-height:48px;margin-top:var(--space-3);padding-top:var(--space-2)}.k5calc-equation>span{font-size:12px}.k5calc-sub-bar{min-height:78px}.k5calc-sub-bar>div{padding:8px 5px}.k5calc-sub-bar small{display:none}.k5calc-array{min-height:165px;gap:1px}.k5calc-array-side{font-size:12px}.k5calc-commute{gap:7px;font-size:.95rem}.k5calc-groups{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.k5calc-group{min-height:86px;padding:9px}.k5calc-group i{width:9px;height:9px}.k5calc-complement{min-height:92px;gap:2px}.k5calc-smart-path,.k5calc-estimate-flow{grid-template-columns:1fr;gap:7px}.k5calc-smart-path>i,.k5calc-estimate-flow>i{justify-self:center;transform:rotate(90deg);font-size:1rem}.k5calc-smart-path>div,.k5calc-estimate-flow>div{min-height:58px;padding:9px 12px}.k5calc-estimate-flow strong{font-size:.98rem}.lu-stage .k5calc-operation-nav .lu-segment{grid-template-columns:repeat(2,minmax(0,1fr))}.lu-stage .k5calc-operation-nav .lu-segment button{min-height:46px}.k5calc-controls{gap:var(--space-3)}}@media (max-width: 350px){.k5calc-stage{padding:11px}.k5calc-stage-head{align-items:flex-start;flex-direction:column}.k5calc-stage-head strong{text-align:left}.k5calc-place-row{grid-template-columns:42px repeat(3,minmax(0,1fr))}.k5calc-place-row>*{padding-inline:3px;font-size:.9rem}.k5calc-carry{align-items:flex-start;flex-wrap:wrap}}@media (prefers-reduced-motion: reduce){.k5calc-workshop *,.k5calc-workshop *:before,.k5calc-workshop *:after{scroll-behavior:auto;transition-duration:.001ms!important;animation-duration:.001ms!important}}.practice-panel-question-copy{flex:1 1 260px;min-width:0}.practice-panel-listen-button{flex:0 0 auto;min-width:92px;min-height:44px;padding:8px 14px;border:2px solid var(--border-card);border-radius:var(--radius-segment);background:var(--bg-sunken);color:var(--text-primary);box-shadow:2px 2px 0 var(--shadow-ink, var(--border-card));font:inherit;font-size:var(--text-sm);font-weight:900;cursor:pointer}.practice-panel-listen-button:active{transform:translate(2px,2px);box-shadow:none}.practice-panel-listen-button:focus-visible{outline:3px solid var(--border-focus);outline-offset:2px}.practice-panel-audio-fallback{flex:0 1 auto;padding:8px 10px;border-left:3px solid var(--color-accent);color:var(--text-secondary);font-size:var(--text-sm);font-weight:750}@media (max-width: 520px){.practice-panel-question{align-items:flex-start;flex-wrap:wrap;gap:var(--space-3)}.practice-panel-listen-button{min-width:100%}}.practice-difficulty-tabs{position:relative;isolation:isolate}.practice-difficulty-tabs:before,.practice-difficulty-tabs:after{content:"";position:absolute;z-index:4;top:0;bottom:0;width:2px;background:var(--border-card);pointer-events:none}.practice-difficulty-tabs:before{left:calc(100% / 3);transform:translate(-1px)}.practice-difficulty-tabs:after{left:calc(200% / 3);transform:translate(-1px)}.practice-difficulty-tabs button,.practice-difficulty-tabs button.is-active{z-index:1;border-left:0;border-right:0}.practice-difficulty-tabs button+button{border-left:0}.k5pv-stage{container-type:inline-size}.k5pv-number-readout{max-width:100%;overflow:hidden;font-size:clamp(1.45rem,8cqi,3.2rem);white-space:nowrap}.k5pv-group-grid{width:100%;max-width:100%;min-width:0}.k5solve{display:grid;gap:var(--space-4);min-width:0}.k5solve-intro{display:grid;gap:4px;padding-bottom:var(--space-3);border-bottom:1px solid var(--border-subtle)}.k5solve-intro>span{color:var(--color-math-dir);font-size:var(--text-2xs);font-weight:900;letter-spacing:.06em;text-transform:uppercase}.k5solve-intro>strong{color:var(--text-primary);font-size:clamp(1rem,2.2cqi,1.25rem);font-weight:850;line-height:1.3}.k5solve-group-inputs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--space-3)}.k5solve-group-inputs label{display:grid;gap:6px;min-width:0}.k5solve-group-inputs label>span,.k5solve-place-labels span{color:var(--text-muted);font-size:var(--text-2xs);font-weight:850;text-align:center;text-transform:uppercase;letter-spacing:.04em}.k5solve-group-inputs input{width:100%;min-width:0;min-height:52px;box-sizing:border-box;padding:8px 10px;border:2px solid var(--border-card);border-radius:var(--radius-segment);background:var(--bg-sunken);color:var(--text-primary);font:inherit;font-family:var(--font-mono);font-size:1.15rem;font-weight:850;text-align:center;font-variant-numeric:tabular-nums}.k5solve-group-inputs input:focus-visible{outline:3px solid var(--border-focus);outline-offset:2px}.k5solve-result{display:flex;align-items:center;justify-content:space-between;gap:var(--space-3);min-height:68px;padding:10px 14px;border-block:2px solid var(--border-card)}.k5solve-result>span{color:var(--text-muted);font-size:var(--text-xs);font-weight:850;text-transform:uppercase}.k5solve-number-groups{display:flex;justify-content:center;min-width:0;overflow:hidden;color:var(--text-primary);font-family:var(--font-mono);font-size:clamp(1.3rem,5.5cqi,2.35rem);font-weight:900;font-variant-numeric:tabular-nums;letter-spacing:-.025em;white-space:nowrap}.k5solve-number-groups>span{display:inline-flex;align-items:center}.k5solve-number-groups>span+span:before{content:".";margin-inline:.08em;color:var(--color-accent)}.k5solve-transfer{justify-self:end;display:inline-flex;align-items:center;justify-content:space-between;gap:var(--space-4);min-width:min(100%,270px);min-height:52px;padding:9px 14px;border:2px solid var(--border-card);border-radius:var(--radius-segment);background:var(--color-accent);color:#111318;box-shadow:3px 3px 0 var(--shadow-ink, var(--border-card));font:inherit;cursor:pointer}.k5solve-transfer>span{font-size:var(--text-2xs);font-weight:750;text-transform:uppercase}.k5solve-transfer>strong{font-size:var(--text-sm);font-weight:950}.k5solve-transfer:hover:not(:disabled){transform:translate(-1px,-1px);box-shadow:4px 4px 0 var(--shadow-ink, var(--border-card))}.k5solve-transfer:active:not(:disabled){transform:translate(3px,3px);box-shadow:none}.k5solve-transfer:disabled{background:var(--bg-sunken);color:var(--text-muted);box-shadow:none;cursor:default;opacity:.7}.k5solve-place-number{display:grid;gap:7px;padding:14px;border:2px solid var(--border-card);border-radius:var(--radius-card);background:var(--bg-sunken)}.k5solve-place-labels{display:grid;grid-template-columns:repeat(3,1fr);gap:4px}.k5solve-choice-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--space-2)}.k5solve-choice-grid.is-three{grid-template-columns:repeat(3,minmax(0,1fr))}.k5solve-choice-grid.is-four{grid-template-columns:repeat(2,minmax(0,1fr))}.k5solve-choice-grid button,.k5solve-round-choices button,.k5solve-estimate-rows button{min-width:0;min-height:48px;padding:8px 10px;border:2px solid var(--border-card);border-radius:var(--radius-segment);background:var(--bg-card);color:var(--text-primary);box-shadow:2px 2px 0 var(--shadow-ink, var(--border-card));font:inherit;font-size:var(--text-xs);font-weight:850;cursor:pointer}.k5solve-choice-grid button.is-selected,.k5solve-round-choices button.is-selected,.k5solve-estimate-rows button.is-selected{background:var(--color-accent);color:#111318;box-shadow:1px 1px 0 var(--shadow-ink, var(--border-card));transform:translate(1px,1px)}.k5solve-equation{display:flex;align-items:center;justify-content:center;gap:var(--space-3);min-height:62px;padding-block:var(--space-3);border-block:1px solid var(--border-subtle);color:var(--text-secondary);font-variant-numeric:tabular-nums}.k5solve-equation>i{color:var(--text-muted);font-style:normal;font-weight:900}.k5solve-equation>strong{color:var(--text-primary);font-family:var(--font-mono);font-size:clamp(1.15rem,3.7cqi,1.7rem);font-weight:950}.k5solve-equation.is-large{min-height:72px}.k5solve-compare-head{display:grid;grid-template-columns:1fr 1fr;color:var(--text-muted);font-size:var(--text-2xs);font-weight:850;text-align:center;text-transform:uppercase}.k5solve-compare-options{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-3)}.k5solve-compare-options button{display:grid;grid-template-columns:1fr 1fr;min-height:92px;padding:0;overflow:hidden;border:2px solid var(--border-card);border-radius:var(--radius-card);background:var(--bg-card);color:var(--text-primary);box-shadow:3px 3px 0 var(--shadow-ink, var(--border-card));font-family:var(--font-mono);font-size:clamp(1.2rem,4.5cqi,2rem);font-weight:900;cursor:pointer}.k5solve-compare-options button>span{display:grid;place-items:center}.k5solve-compare-options button>span+span{border-left:2px solid var(--border-subtle)}.k5solve-compare-options button.is-selected{background:color-mix(in srgb,var(--color-accent) 24%,var(--bg-card));box-shadow:1px 1px 0 var(--shadow-ink, var(--border-card));transform:translate(2px,2px)}.k5solve-round-track{position:relative;height:118px;margin:8px 22px 0}.k5solve-round-line{position:absolute;left:0;right:0;top:58px;height:4px;background:var(--border-card)}.k5solve-round-track .is-middle,.k5solve-round-track .is-current{position:absolute;transform:translate(-50%);font-variant-numeric:tabular-nums}.k5solve-round-track 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-1;display:grid;gap:var(--space-3);padding-top:var(--space-3);border-top:2px solid var(--border-card)}.k5pow-square-stage.is-explore{grid-template-columns:minmax(190px,.85fr) minmax(150px,.45fr);gap:clamp(20px,4vw,44px)}@media (max-width: 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span{color:var(--text-secondary);font-size:12px;font-weight:850;text-align:center}.k5tv-rule-line,.k5tv-live-evidence{display:flex;justify-content:center;flex-wrap:wrap;gap:8px 20px;color:var(--text-secondary);font-size:12px;font-weight:850}.k5tv-live-evidence strong{color:var(--color-math-dir);font-family:var(--font-mono);font-size:1.1rem}.k5tv-digit-sum{display:grid;justify-items:center;gap:var(--space-3)}.k5tv-digit-sum>div{display:flex;align-items:baseline;justify-content:center;flex-wrap:wrap;gap:10px;font-family:var(--font-mono)}.k5tv-digit-sum span,.k5tv-digit-sum strong{color:var(--text-primary);font-size:clamp(1.6rem,6vw,2.6rem);font-weight:950}.k5tv-digit-sum strong{color:var(--color-math-result)}.k5tv-digit-sum i{color:var(--text-muted);font-style:normal;font-weight:950}.k5tv-digit-sum 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