.shorts-main{box-sizing:border-box;flex-direction:column;align-items:center;min-height:min(70vh,100vh - 6rem);padding-bottom:8rem;display:flex}.shorts-main--916{justify-content:flex-start;min-height:100dvh;padding:.25rem .25rem 6.5rem}.shorts-frame-916{aspect-ratio:9/16;box-sizing:border-box;background:#fff8e8;border-radius:10px;width:min(100vw - .35rem,56.25dvh - 2.95313rem);max-height:calc(100dvh - 5.25rem);margin:0 auto;overflow:hidden;box-shadow:0 2px 12px #0000000f}.shorts-compare-scroll{box-sizing:border-box;flex-direction:column;height:100%;min-height:0;padding:.3rem .35rem .35rem;display:flex;overflow-y:auto}.shorts-compare-visual-block{flex-direction:column;flex:auto;justify-content:center;gap:.85rem;width:100%;min-height:0;display:flex}.shorts-skin-box{background:#fffffff0;border:1px solid #e2e8f0;border-radius:7px;flex-shrink:0;width:100%;max-width:15rem;margin-top:auto;margin-left:auto;margin-right:auto;padding:.22rem .35rem}.shorts-skin-box .fraction-skin-toggle{flex-wrap:wrap;justify-content:center;gap:.2rem .35rem}.shorts-skin-box .fraction-skin-toggle-label{display:none}.shorts-skin-box .fraction-skin-toggle-buttons button{padding:.26rem .48rem;font-size:.72rem}.shorts-cut-hud{border-top:1px solid #94a3b859;flex-shrink:0;width:100%;margin-top:.15rem;padding:.35rem .25rem .2rem}.shorts-cut-hud-bar{background:#e2e8f0;border-radius:2px;height:4px;position:relative;overflow:hidden}.shorts-cut-hud-tick{pointer-events:none;z-index:1;background:#64748b8c;width:1px;height:10px;margin-left:-.5px;position:absolute;top:-3px}.shorts-cut-hud-fill{background:linear-gradient(90deg,#64748b,#475569);border-radius:2px;height:100%;transition:width 40ms linear}.shorts-cut-hud-time{color:#64748b;letter-spacing:.02em;justify-content:center;align-items:baseline;gap:.2rem;margin-top:.25rem;font-family:ui-monospace,Cascadia Code,monospace;font-size:.62rem;font-weight:500;display:flex}.shorts-cut-hud-sep{opacity:.65}.shorts-nl-wrap--916{transform-origin:top;flex-shrink:0;margin:.35rem auto -.2rem;transform:scale(.9)}.shorts-main--placeholder{padding-bottom:10rem}.shorts-task-title{text-align:center;margin:.5rem 0 1rem;font-size:1.35rem;transition:opacity .35s}.shorts-task-title--faint{opacity:.28}.shorts-dual-stack{margin-top:.35rem}.shorts-pizza-pair{width:100%;max-width:100%;margin:0 auto}.shorts-pizza-pair-row{grid-template-columns:minmax(0,1fr) minmax(2.75rem,4.25rem) minmax(0,1fr);place-items:center;gap:.35rem;width:100%;display:grid}.shorts-compare-symbol-cell{justify-content:center;align-self:stretch;align-items:center;width:100%;display:flex}.shorts-nl-dual-caption{text-align:center;margin:.35rem 0 .2rem;font-size:.95rem;line-height:1.35}.shorts-nl-wrap{justify-content:center;width:100%;display:flex}.shorts-compare-stage{flex-direction:column;align-items:stretch;width:100%;max-width:none;height:100%;min-height:0;display:flex}.shorts-compare-row{flex-wrap:wrap;justify-content:center;align-items:flex-end;gap:.75rem 1rem;width:100%;display:flex}.shorts-compare-card{border:2px solid #0000;border-radius:10px;flex-direction:column;align-items:center;gap:.25rem;padding:.35rem .25rem;transition:opacity .35s,border-color .35s,box-shadow .35s;display:flex}.shorts-compare-card--hidden{opacity:0;pointer-events:none;visibility:hidden;border:none;width:0;min-width:0;max-height:0;margin:0;padding:0;overflow:hidden}.shorts-compare-card--solution{border-color:#2e7d32;box-shadow:0 0 0 3px #2e7d3259}.shorts-compare-symbol{text-align:center;font-size:clamp(1.5rem,7vw,2.35rem);font-weight:800;line-height:1;transition:opacity .35s,transform .35s;display:inline-block}.shorts-compare-symbol--hidden{opacity:0;visibility:hidden;transform:scale(.92)}.shorts-compare-symbol--emph{color:#1565c0}.shorts-export-panel{z-index:10;background:#fffffff0;border:1px solid #ccc;border-radius:10px;max-width:min(100vw - 1.5rem,28rem);padding:.5rem;position:fixed;bottom:.75rem;right:.75rem;box-shadow:0 2px 12px #0000001f}.shorts-export-run-count{color:#4b5563;margin:0 0 .35rem;font-size:.8rem}.shorts-export-panel-row{flex-wrap:wrap;align-items:center;gap:.35rem;display:flex}.shorts-export-btn,.shorts-export-toggle{cursor:pointer;background:#f5f5f5;border:1px solid #bbb;border-radius:6px;padding:.35rem .55rem;font-size:.8rem}.shorts-export-textarea{box-sizing:border-box;width:100%;margin-top:.5rem;font-family:ui-monospace,monospace;font-size:.7rem}.shorts-nl-placeholder{opacity:0;width:100%;max-width:24rem;height:3rem;transition:opacity .35s;position:relative}.shorts-nl-placeholder--visible{opacity:1}.shorts-nl-placeholder-line{background:#333;border-radius:2px;height:4px;position:absolute;top:50%;left:0;right:0}.shorts-nl-placeholder-marker{font-size:1.25rem;position:absolute;bottom:100%;transform:translate(-50%)}.shorts-placeholder-answer{margin:.5rem 0;font-size:1.5rem;font-weight:700}.shorts-placeholder-hint{opacity:.75;text-align:center;max-width:22rem;font-size:.85rem}:root{color:#1f2937;background:#fff8e8;font-family:Arial,sans-serif}*{box-sizing:border-box}body{margin:0}.app-shell{max-width:960px;margin:0 auto;padding:1rem}h1{text-align:center;margin:.2rem 0 1rem}.nav-list{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:.5rem;margin-bottom:1rem;display:grid}button{color:#1e3a8a;cursor:pointer;background:#eff6ff;border:2px solid #3b82f6;border-radius:10px;padding:.6rem .8rem;font-size:1rem}button:hover{background:#dbeafe}.nav-active{background:#bfdbfe}.fraction-skin-toggle{flex-wrap:wrap;justify-content:center;align-items:center;gap:.5rem 1rem;width:100%;display:flex}.fraction-skin-toggle-label{color:#4b5563;font-size:.95rem}.fraction-skin-toggle-buttons{gap:.35rem;display:inline-flex}.fraction-skin-toggle-buttons button{color:#334155;background:#f8fafc;border:2px solid #94a3b8;padding:.45rem .75rem;font-size:.95rem}.fraction-skin-toggle-buttons button:hover{background:#e2e8f0}.fraction-skin-active{color:#1e3a8a!important;background:#bfdbfe!important;border-color:#3b82f6!important}.einordnen-hint-toggle{flex-wrap:wrap;justify-content:center;gap:.4rem;width:100%;margin:.35rem 0 .75rem;display:inline-flex}.einordnen-hint-toggle button{color:#334155;cursor:pointer;background:#f8fafc;border:2px solid #94a3b8;border-radius:10px;padding:.45rem .75rem;font-size:.95rem}.einordnen-hint-toggle button:hover{background:#e2e8f0}.einordnen-hint-toggle .einordnen-hint-toggle-active{color:#1e3a8a;background:#bfdbfe;border-color:#3b82f6;font-weight:600}.lego-fraction-bar-wrap{justify-items:center;gap:.35rem;width:100%;display:grid}.lego-fraction-bar-svg{min-height:80px;max-height:120px;display:block}.lego-fraction-brick{transition:fill .35s,stroke .25s}.lego-fraction-segment{transition:opacity .25s}.pro-module-nav-footer{border-top:1px solid #e5e7eb;justify-content:center;margin-top:1.1rem;padding-top:.65rem;display:flex}.pro-module-nav-btn{color:#64748b;cursor:pointer;background:#fff;border:1px solid #cbd5e1;border-radius:8px;padding:.38rem .75rem;font-size:.82rem;font-weight:500;line-height:1.25}.pro-module-nav-btn:hover{color:#475569;background:#f8fafc;border-color:#94a3b8}.pro-module-nav-btn:focus-visible{outline-offset:2px;outline:2px solid #3b82f6}.intro-visual-block{justify-items:center;gap:.5rem;width:100%;max-width:min(100%,420px);display:grid}.intro-zs-svg{width:100%;max-width:min(100%,400px);height:auto;margin:.25rem auto 0;display:block}.intro-explain-block{text-align:left;box-sizing:border-box;background:linear-gradient(#fafbfc 0%,#f1f5f9 100%);border:1px solid #cbd5e1;border-radius:12px;width:100%;margin-top:.25rem;padding:.85rem 1rem .95rem;box-shadow:0 1px 2px #0f172a0f}.intro-explain-lead{color:#0f172a;border-bottom:1px solid #cbd5e1;margin:0 0 .75rem;padding-bottom:.75rem;font-size:1.02rem;font-weight:600;line-height:1.45}.intro-explain-detail{color:#1e293b;margin:0;font-size:.98rem;font-weight:400;line-height:1.55}.intro-split-buttons button.intro-split-active{color:#1e3a8a;background:#bfdbfe;border-color:#3b82f6;font-weight:600}.screen-card{background:#fff;border:2px solid #f59e0b;border-radius:14px;justify-items:center;gap:.8rem;padding:1rem;display:grid}.button-row{flex-wrap:wrap;justify-content:center;gap:.5rem;display:flex}.paint-hint{color:#6b7280;margin:-.2rem 0 0;font-size:.9rem;font-style:italic}.fraction-display{justify-items:center;width:70px;font-size:2rem;font-weight:700;display:grid}.fraction-line{background:#111827;width:100%;height:4px}.fraction-slider-layout{justify-items:center;gap:.6rem;width:100%;display:grid}.fraction-explain-layout{justify-items:center;gap:.7rem;width:100%;max-width:700px;display:grid}.fraction-explain-text{text-align:left;gap:.45rem;width:100%;max-width:560px;display:grid}.fraction-explain-text p{background:#fff8e8;border:1px solid #fcd9a8;border-radius:10px;margin:0;padding:.5rem .65rem;font-size:.96rem;line-height:1.35}.fraction-slider-row{grid-template-columns:auto 1fr auto;align-items:center;gap:.5rem;width:100%;max-width:420px;display:grid}.fraction-slider-row input[type=range]{width:100%}.nd-compare-toggle-row{flex-wrap:wrap;justify-content:center;align-items:center;gap:.75rem;margin:.35rem 0 .85rem;display:flex}.nd-compare-toggle-label{color:#334155;font-size:.98rem;font-weight:600}.nd-switch{cursor:pointer;background:#ede9fe;border:2px solid #c4b5fd;border-radius:999px;width:3.1rem;height:1.7rem;padding:0;transition:background .25s,border-color .25s;position:relative}.nd-switch--on{background:#8b5cf6;border-color:#7c3aed}.nd-switch-thumb{pointer-events:none;background:#fff;border-radius:50%;width:1.25rem;height:1.25rem;transition:transform .25s;position:absolute;top:2px;left:2px;box-shadow:0 1px 4px #0f172a33}.nd-switch--on .nd-switch-thumb{transform:translate(1.35rem)}.nd-switch:focus-visible{outline-offset:2px;outline:3px solid #a78bfa}.nd-figures-row{flex-wrap:wrap;justify-content:center;align-items:flex-start;gap:1rem 1.25rem;width:100%;display:flex}.nd-figure-column{flex-direction:column;align-items:center;gap:.5rem;width:100%;max-width:420px;display:flex}.nd-dual-grid{grid-template-columns:1fr auto 1fr;grid-template-areas:"explain.heading""sliders-l.sliders-r""chart-l compare chart-r";align-items:start;gap:.55rem .35rem;width:100%;max-width:880px;margin-inline:auto;display:grid}.nd-dual-compare-slot{grid-area:compare;align-self:center}.nd-dual-explain,.nd-dual-heading{justify-content:center;align-items:center;min-height:4.25rem;padding:.35rem 0;display:flex}.nd-dual-explain{grid-area:explain}.nd-dual-heading{grid-area:heading}.nd-dual-sliders-left{grid-area:sliders-l}.nd-dual-sliders-right{grid-area:sliders-r}.nd-dual-chart-left{grid-area:chart-l;justify-self:center}.nd-dual-chart-right{grid-area:chart-r;justify-self:center}.nd-dual-sliders-inner{width:100%;max-width:420px;margin-inline:auto}.nd-dual-cell-fade{animation:.4s forwards nd-second-fraction-in}@keyframes nd-second-fraction-in{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@media (prefers-reduced-motion:reduce){.nd-dual-cell-fade{opacity:1;animation:none}}@media (width<=700px){.nd-dual-grid{grid-template-columns:1fr;grid-template-areas:"explain""sliders-l""heading""sliders-r""chart-l""compare""chart-r"}}.clickable-slice{cursor:pointer;transition:filter .15s}.clickable-slice:hover{filter:brightness(1.15)}.compare-grid{text-align:center;grid-template-columns:1fr;gap:1rem;width:100%;display:grid}.compare-pizza-card{justify-items:center;width:100%;display:grid}.compare-choice-card{font:inherit;color:inherit;cursor:pointer;text-align:center;background:#fffefb;border:2px solid #93c5fd;border-radius:14px;padding:.65rem .75rem .85rem;transition:border-color .15s,box-shadow .15s}.compare-choice-card:hover:not(:disabled){border-color:#3b82f6;box-shadow:0 2px 8px #3b82f626}.compare-choice-card:focus-visible{outline-offset:2px;outline:3px solid #2563eb}.compare-choice-card:disabled{cursor:default}.compare-choice-card.compare-answer-wrong{color:#7f1d1d;background:#fee2e2;border-color:#b91c1c}.compare-choice-card.compare-answer-correct{color:#14532d;background:#dcfce7;border-color:#15803d}.compare-choice-card.compare-answer-wrong:disabled,.compare-choice-card.compare-answer-correct:disabled{opacity:1}.compare-choice-label{margin-bottom:.25rem;font-weight:700;display:block}.compare-fraction-label{margin-top:.35rem;font-size:1.1rem}.dual-pizza-stack{gap:.65rem;width:100%;max-width:920px;display:grid}.dual-pizza-row{width:100%;display:grid}.dual-pizza-row--sliders{grid-template-columns:1fr 1fr;gap:1rem}.dual-pizza-row--pizzas{grid-template-columns:1fr auto 1fr;place-items:center;gap:.2rem .35rem}.dual-pizza-row--hints{grid-template-columns:1fr 1fr;gap:1rem}.dual-pizza-hint{text-align:center;background:#fff8e8;border:1px solid #fcd9a8;border-radius:10px;width:100%;max-width:620px;padding:.45rem .7rem}.dual-pizza-hint p{margin:.1rem 0}.dual-pizza-col{justify-items:center;gap:.35rem;width:100%;display:grid}.dual-pizza-slider-label{margin-bottom:.15rem;font-size:.95rem;font-weight:700}.dual-pizza-col input[type=range]{width:100%;max-width:280px}.dual-pizza-dynamic-hint{text-align:center;color:#4b5563;margin:.1rem 0 0;font-size:.88rem;line-height:1.3}.dual-pizza-compare{color:#64748b;justify-content:center;align-items:center;min-width:1.75rem;min-height:2rem;font-size:clamp(1.5rem,4vw,2rem);font-weight:800;line-height:1;animation:.4s 2s both dual-pizza-compare-in;display:flex}@keyframes dual-pizza-compare-in{0%{opacity:0}to{opacity:1}}@media (prefers-reduced-motion:reduce){.dual-pizza-compare{opacity:1;min-height:unset;animation:none}}@media (width<=767px){.dual-pizza-row--sliders{grid-template-columns:1fr}.dual-pizza-row--pizzas{grid-template-columns:1fr;justify-items:center}.dual-pizza-compare{min-height:2rem;padding:.15rem 0}.dual-pizza-row--hints{grid-template-columns:1fr}}.feedback-ok{color:#166534;font-weight:700}.feedback-hint{color:#9a3412;font-weight:700}.feedback-animated{animation:.22s ease-out feedback-fade-in}.result-correct{animation:.3s ease-out button-pulse-green}.result-wrong{animation:.3s ease-out button-shake}.pro-tools{justify-items:center;margin-top:1.2rem;display:grid}.pro-print-button{color:#8a5b00;background:#fff7dd;border:3px solid #d4a017;font-weight:700}.pro-print-only{display:none}.print-page{color:#000;background:#fff}.print-grid{grid-template-columns:1fr 1fr;gap:.6cm;display:grid}.print-card{border:1px solid #000;min-height:3.7cm;padding:.28cm}.print-card p{margin:.12cm 0}.print-compare-circles{justify-content:center;gap:.25cm;display:flex}.print-circle-with-label{justify-items:center;gap:.08cm;display:grid}.print-fraction-label{margin:0;font-size:.95rem;font-weight:700}.print-answer-line{text-align:center;letter-spacing:.01em;font-weight:700;margin-top:.2cm!important}@keyframes feedback-fade-in{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes button-pulse-green{0%{background:#eff6ff;box-shadow:0 0 #16653440}50%{background:#dcfce7;box-shadow:0 0 0 8px #16653400}to{background:#eff6ff;box-shadow:0 0 #16653400}}@keyframes button-shake{0%{transform:translate(0)}16%{transform:translate(-6px)}33%{transform:translate(6px)}50%{transform:translate(-6px)}66%{transform:translate(6px)}83%{transform:translate(-6px)}to{transform:translate(0)}}.quiz-progress-block{margin:.35rem 0 .75rem}.quiz-progress-line1{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.5rem 1rem;display:flex}.quiz-progress-counter{color:#1e3a8a;margin:0;font-size:1rem;font-weight:600}.quiz-progress-sep{color:#94a3b8;margin:0 .35rem;font-weight:400}.quiz-timer-dropdown-wrap{position:relative}.quiz-timer-icon-btn{cursor:pointer;background:#f8fafc;border:2px solid #94a3b8;border-radius:8px;padding:.35rem .55rem;font-size:1.1rem;line-height:1}.quiz-timer-icon-btn:hover{background:#e2e8f0}.quiz-timer-menu{z-index:20;background:#fff;border:2px solid #cbd5e1;border-radius:10px;min-width:220px;margin:0;padding:.25rem 0;list-style:none;position:absolute;top:calc(100% + 4px);right:0;box-shadow:0 8px 24px #0f172a1f}.quiz-timer-menu li button{text-align:left;color:#334155;background:0 0;border:none;border-radius:0;width:100%;padding:.45rem .75rem;font-size:.95rem;display:block}.quiz-timer-menu li button:hover{background:#f1f5f9}.quiz-timer-menu li button.active{color:#1e3a8a;background:#dbeafe;font-weight:600}.quiz-slot-row{flex-wrap:wrap;justify-content:center;gap:.45rem;margin-top:.5rem;display:flex}.quiz-slot{color:#64748b;background:#f1f5f9;border:2px solid #cbd5e1;border-radius:50%;justify-content:center;align-items:center;width:1.75rem;height:1.75rem;font-size:.95rem;font-weight:700;display:inline-flex}.quiz-slot.ok{color:#15803d;background:#dcfce7;border-color:#22c55e}.quiz-slot.bad{color:#b91c1c;background:#fee2e2;border-color:#ef4444}.quiz-timer-track{background:#e2e8f0;border-radius:999px;width:100%;height:6px;margin-bottom:.65rem;overflow:hidden}.quiz-timer-track-fill{border-radius:inherit;height:100%;transition:width 50ms linear}.quiz-completion-screen{text-align:center;padding:1.25rem .5rem .5rem}.quiz-completion-screen--perfect{position:relative}.quiz-completion-module{border-radius:12px;min-height:220px;margin-bottom:.35rem;padding:.75rem .5rem .25rem;position:relative;overflow:hidden}.quiz-completion-confetti-host{pointer-events:none;z-index:0;position:absolute;inset:0}.quiz-completion-wow-content{z-index:1;position:relative}.quiz-completion-stars-wow{justify-content:center;align-items:center;gap:.35rem;margin:0 0 .75rem;display:flex}.quiz-completion-star-wow{opacity:0;font-size:clamp(2.5rem,10vw,3.75rem);line-height:1;animation:.55s ease-out forwards quiz-star-pop;display:inline-block;transform:scale(.3)}.quiz-completion-star-wow--1{animation-delay:0s}.quiz-completion-star-wow--2{animation-delay:.2s}.quiz-completion-star-wow--3{animation-delay:.4s}@keyframes quiz-star-pop{0%{opacity:0;transform:scale(.3)}to{opacity:1;transform:scale(1)}}.quiz-completion-text--perfect{color:#0f172a;margin:0 0 .5rem;font-size:1.4rem;font-weight:700;animation:.65s ease-in-out quiz-completion-pulse}@keyframes quiz-completion-pulse{0%{transform:scale(1)}50%{transform:scale(1.1)}to{transform:scale(1)}}.quiz-confetti-piece{pointer-events:none;border-radius:2px;width:8px;height:10px;animation:1.5s ease-in forwards quiz-confetti-fall;position:absolute;top:-20px}@keyframes quiz-confetti-fall{0%{transform:translateY(-20px) rotate(var(--qz-r0,0deg));opacity:1}to{transform:translateY(200px) rotate(var(--qz-r1,360deg));opacity:.85}}.quiz-completion-stars{letter-spacing:.15em;margin:0 0 .5rem;font-size:clamp(1.75rem,6vw,2.5rem)}.quiz-completion-stars--single{margin:0 0 .35rem}.quiz-completion-text{color:#1e293b;margin:0 0 1.25rem;font-size:1.15rem;font-weight:600}.quiz-completion-actions{flex-wrap:wrap;justify-content:center;gap:.65rem;display:flex}.quiz-btn-primary,.quiz-btn-secondary{min-width:10rem}.quiz-btn-primary{color:#14532d!important;background:#dcfce7!important;border-color:#16a34a!important}.quiz-btn-secondary{background:#eff6ff!important;border-color:#3b82f6!important}@media (width>=768px){.compare-grid{grid-template-columns:1fr 1fr}.fraction-explain-layout{grid-template-columns:auto 1fr;align-items:center;gap:1.1rem}}@media print{@page{size:A4;margin:1.5cm}.pro-screen-only{display:none!important}.pro-print-only{display:block!important}.pro-print-root{color:#000}.print-page{grid-template-rows:auto auto 1fr auto;gap:.3cm;min-height:1001.57px;display:grid}.print-page footer{margin:0;font-size:10pt;line-height:1}.print-page-type-a .print-card{min-height:3.35cm;padding:.22cm}.print-page-type-a .print-card p{margin:.08cm 0}.print-page-type-a .print-card svg{width:80px;height:80px}.print-solutions{page-break-before:always}.print-grid--dense{grid-template-columns:1fr 1fr;gap:.32cm .5cm}.print-page-zs-dense .print-card{min-height:0;padding:.16cm .14cm}.print-page-zs-dense .print-card p{margin:.05cm 0;font-size:8.5pt;line-height:1.12}.print-page-zs-dense h2{margin:0 0 .12cm;font-size:13pt}.print-page-zs-dense>p{margin:0 0 .12cm;font-size:9.5pt}}
