.math-lesson{--lesson-green:#176f63;--lesson-line:#dce7e0}.math-lesson .lesson-lead{font-size:19px;line-height:1.8;max-width:780px}.math-lesson .formula-card{padding:22px 25px;margin:26px 0;border:1px solid #bfdbd0;border-left:5px solid #176f63;border-radius:14px;background:#f0f7f2;color:#173f36}.math-lesson .formula-card>strong{font-size:12px;letter-spacing:1.1px;text-transform:uppercase}.math-lesson .formula-card p:last-child{margin-bottom:0}.math-lesson .worked-example{border:1px solid var(--lesson-line);padding:22px 25px;border-radius:16px;margin:20px 0;background:#fff}.math-lesson .worked-example h3{margin:0 0 14px;font-size:21px}.math-lesson .math-note{padding:16px 20px;background:#fff7ea;border:1px solid #eed6ae;border-radius:12px;font-size:15px;line-height:1.8;margin:20px 0}.math-tool{border:1px solid #cfded4;border-radius:20px;padding:25px;background:linear-gradient(145deg,#f1f8f3,#fff 65%);margin:26px 0;min-width:0}.lesson-body .math-tool h2,.lesson-body .math-tool h3{margin:0 0 10px}.math-tool .tool-intro{color:#647369;font-size:15px;line-height:1.7;margin:0 0 20px}.tool-fields{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;align-items:end}.tool-fields.two{grid-template-columns:repeat(2,minmax(0,1fr))}.math-tool label{display:block;font-size:13px;font-weight:700;color:#31564b;line-height:1.6}.math-tool label small{font-size:11px;font-weight:400}.math-tool input:not([type=range]):not([type=checkbox]),.math-tool select{display:block;width:100%;min-width:0;margin-top:7px;border:1px solid #bfcfc5;border-radius:10px;padding:11px 12px;min-height:48px;color:#193c39;background:white;font:inherit;font-size:16px;line-height:1.5}.math-tool :is(input,select,button):focus-visible{outline:3px solid #176f6333;outline-offset:3px}.math-tool button{border-radius:10px;padding:12px 18px;min-height:46px;line-height:1.4;font-size:14px;font-weight:700;color:#fff;background:#176f63;cursor:pointer}.math-tool button.secondary{background:#e5eee6;color:#275a4b}.tool-actions{display:flex;justify-content:flex-start;align-items:center;flex-wrap:wrap;gap:10px;margin:18px 0}.tool-message{color:#a13220;font-size:14px;line-height:1.7;margin:12px 0}.tool-message:empty{display:none}.tool-result{padding:20px;border-radius:14px;border:1px solid #c2dccb;background:#fff;margin:18px 0}.tool-result .result-kicker{display:block;text-transform:uppercase;color:#597965;letter-spacing:1px;font-size:11px;font-weight:700}.tool-result .result-number{display:block;font-size:34px;line-height:1.5;color:#165f4c;margin:4px 0}.tool-result .result-steps{font-size:15px;line-height:2;margin-top:12px}.tool-result .result-steps p{margin:8px 0}.tool-diagram{border:1px solid #dce7df;background:white;border-radius:14px;padding:12px;margin:18px 0}.math-tool .tool-diagram>svg{display:block;width:100%;height:auto;max-width:640px;margin:auto}.tool-diagram figcaption{font-size:12px;line-height:1.7;color:#68776c;text-align:center;margin:6px 0}.tool-slider{border-top:1px solid #dbe5dd;margin-top:16px;padding-top:16px}.tool-slider label{display:flex;justify-content:space-between;gap:14px}.tool-slider input[type=range]{display:block;width:100%;min-height:42px;margin:8px 0;accent-color:#176f63}.tool-slider p{font-size:12px;line-height:1.7;color:#697a6e;margin:0}.side-legend{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;font-size:13px;font-weight:600}.side-legend span{background:#eff4ef;border-radius:8px;padding:6px 10px}.side-legend .missing{background:#fff0dc;color:#8c4e0e}.math-lesson .steps-list{padding-left:23px}.math-lesson .steps-list li{padding:5px 0}.math-lesson details{border:1px solid #dde6df;border-radius:10px;padding:14px 18px;margin:12px 0}.math-lesson summary{font-weight:700;color:#245b4a;cursor:pointer}.math-lesson details p{margin:12px 0 0}.lesson-body .math-tool [hidden]{display:none!important}@media(max-width:600px){.math-lesson .lesson-lead{font-size:17px}.math-tool{padding:18px 13px;border-radius:15px}.math-tool .tool-fields{gap:9px;grid-template-columns:repeat(2,minmax(0,1fr))}.tool-fields>label:last-child:nth-child(odd){grid-column:1/-1}.math-tool input:not([type=range]):not([type=checkbox]),.math-tool select{padding:10px 8px}.math-tool .tool-fields label{font-size:12px}.math-tool .tool-actions button{flex:1}.tool-result{padding:16px 12px}.math-lesson .formula-card,.math-lesson .worked-example{padding:18px 16px}.tool-result .result-number{font-size:29px}.tool-diagram{padding:6px}.side-legend{gap:7px;font-size:12px}}
.right-results{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin:14px 0}.right-results>div{padding:12px;border-radius:10px;background:#f0f6ef;min-width:0}.right-results span{display:block;font-size:12px;color:#536f5a}.right-results strong{display:block;font-size:20px;line-height:1.5;overflow-wrap:anywhere;color:#176348}.right-results>div:nth-child(3){background:#fff1dd}@media(max-width:600px){.right-results{grid-template-columns:repeat(2,minmax(0,1fr))}.right-results strong{font-size:18px}.right-results>div:nth-child(3){grid-column:1/-1}}
.math-tool .fraction-of-fields{display:grid;grid-template-columns:minmax(90px,160px) auto minmax(100px,220px);gap:18px;align-items:center;max-width:500px}.fraction-pair{min-width:0}.math-tool .fraction-pair input{text-align:center;font-size:24px}.fraction-divider{display:block;border-top:2px solid #31564b;margin:9px 0}.fraction-of-word{font-weight:700;color:#31564b}.math-tool .fraction-pair label:last-child{text-align:center}.math-tool .fraction-pair label:last-child input{margin-bottom:7px}.math-tool .result-number{overflow-wrap:anywhere}.math-tool .tool-fields{margin-top:12px}@media(max-width:600px){.math-tool .fraction-of-fields{grid-template-columns:minmax(80px,1fr) auto minmax(90px,1fr);gap:12px}.math-tool .fraction-pair input{font-size:22px}}
.factor-chips{display:flex;flex-wrap:wrap;gap:7px;margin:14px 0}.factor-chips span{font-size:14px;padding:6px 10px;border-radius:7px;border:1px solid #d6e3d8;background:#f3f7f1;overflow-wrap:anywhere}.math-tool .tool-result h3{margin-top:22px;font-size:17px}.math-tool [hidden]{display:none!important}
.math-lesson :is(object,ruffle-object,ruffle-embed,ruffle-player){display:block;width:100%;max-width:100%;height:auto;aspect-ratio:4/3;margin:20px auto}
.trig-values{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.trig-values>div{padding:14px 10px;background:#f0f6ef;border-radius:10px;min-width:0}.trig-values span{display:block;font-size:15px;color:#577463;margin-bottom:8px}.trig-values strong{display:block;font-size:19px;line-height:1.6;color:#176348;overflow-wrap:anywhere}.trig-values .undefined{color:#9b4b18;font-size:16px}@media(max-width:600px){.trig-values{grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.trig-values strong{font-size:16px}}
.calculator-keypad{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px;margin:18px 0}.math-tool .calculator-keypad button{padding:12px 5px;font-size:18px}.graph-bounds{grid-template-columns:repeat(4,minmax(0,1fr))}.graph-point{align-self:center;min-width:0}.graph-point strong{display:block;font-size:17px;color:#176348;overflow-wrap:anywhere}.graph-figure{touch-action:pan-y}.math-tool .graph-figure>svg{max-width:none}@media(max-width:600px){.calculator-keypad{gap:6px}.math-tool .calculator-keypad button{font-size:16px}.graph-bounds{grid-template-columns:repeat(2,minmax(0,1fr))}}
.lesson-body .math-tool .result-number mjx-container[display="true"]{margin:.35em 0!important;padding:.25em 0!important}.lesson-body .math-lesson .formula-card mjx-container[display="true"]{margin:.55em 0!important;padding:.3em 0!important}
.math-tool .tool-checkbox{display:flex;align-items:center;gap:9px;margin:18px 0}.tool-checkbox input{width:18px;height:18px;accent-color:#176f63}.worksheet-paper{background:#fff;border:1px solid #dce5dd;border-radius:12px;padding:24px;margin:20px 0;color:#172c26}.worksheet-paper h3{font-size:23px!important;text-align:center}.worksheet-name{font-size:12px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}.worksheet-questions,.worksheet-answers{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 32px;padding-left:25px;margin:30px 0}.worksheet-questions li{font-size:17px;line-height:2.2;padding:10px 0;break-inside:avoid}.worksheet-answers li{font-size:13px;line-height:1.9;break-inside:avoid}.worksheet-credit{text-align:center;font-size:11px;color:#66756b}.vertical-question{display:flex;flex-direction:column;align-items:flex-end;max-width:130px;position:relative;list-style:decimal}.vertical-question::before{content:counter(list-item) ".";position:absolute;left:-25px;font-size:12px}.vertical-question span{display:block;text-align:right;width:100%;font-variant-numeric:tabular-nums;line-height:1.7}.vertical-question .vertical-bottom{border-bottom:1px solid #304b3b}.vertical-question .vertical-answer{min-height:38px}@media(max-width:600px){.worksheet-paper{padding:18px 12px}.worksheet-questions{grid-template-columns:1fr;gap:8px;margin:20px 0}.worksheet-answers{grid-template-columns:1fr;gap:10px}}
@media print{body.worksheet-printing{margin:0!important;padding:0!important}body.worksheet-printing *:not(.worksheet-print-target):not(.worksheet-print-target *):not(:has(.worksheet-print-target)){display:none!important}body.worksheet-printing *:has(.worksheet-print-target){display:block!important;margin:0!important;padding:0!important;width:auto!important;max-width:none!important;min-height:0!important;border:0!important;box-shadow:none!important;overflow:visible!important}body.worksheet-printing .worksheet-print-target{display:block!important;position:static!important;width:100%;max-width:none;margin:0;padding:8mm;border:0;border-radius:0;background:white;color:black;box-sizing:border-box}body.worksheet-printing :is(.worksheet-questions,.worksheet-answers){display:grid!important;grid-template-columns:repeat(2,minmax(0,1fr));gap:18pt 26pt}body.worksheet-printing .worksheet-questions li{font-size:13pt;min-height:42pt}body.worksheet-printing .worksheet-answers li{font-size:10pt}body.worksheet-printing .worksheet-credit{color:black}}
.shape-results{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.shape-results>div{min-width:0}.shape-results .result-number{font-size:24px}.shape-results>div:nth-child(2){border-left:1px solid #d7e6dc;padding-left:14px}@media(max-width:600px){.shape-results{gap:8px}.shape-results .result-number{font-size:19px}.shape-results>div:nth-child(2){padding-left:8px}}
.pair-results{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:22px 0}.pair-results>div{padding:14px;border-radius:12px;background:#fff0dc;border:1px solid #f0d6af;min-width:0}.pair-results>div:nth-child(2){background:#edf9ee;border-color:#c6e6cd}.pair-results>div:nth-child(3){background:#eff5f8;border-color:#cbdde4}.pair-results span{display:block;font-size:12px;color:#4f6559}.pair-results strong{display:block;font-size:24px;line-height:1.7;color:#244c3b;overflow-wrap:anywhere}@media(max-width:600px){.pair-results{grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.pair-results>div:last-child{grid-column:1/-1}.pair-results strong{font-size:clamp(16px,4vw,24px)}}
.protractor-result{grid-template-columns:repeat(2,minmax(0,1fr))}.protractor-result>div:last-child{grid-column:auto}.protractor-result [data-classification]{font-size:18px}@media(max-width:600px){.protractor-result [data-classification]{font-size:16px}}
.math-tool .single-fraction{max-width:170px;margin:18px auto}.representation-results{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.representation-results>div{padding:14px;background:#f1f7ee;border-radius:10px;min-width:0}.representation-results .result-number{font-size:23px}.representation-results>div:last-child{background:#fff1dc}@media(max-width:600px){.representation-results{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.representation-results>div:last-child{grid-column:1/-1}.representation-results .result-number{font-size:20px}}
.fraction-operation-fields{display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);align-items:center;gap:18px;margin:22px 0}.operation-fraction{width:100%;max-width:190px;margin:auto}.fraction-operation-symbol{font-size:30px;font-weight:700;color:#244e3b}.pair-results.two-results{grid-template-columns:repeat(2,minmax(0,1fr))}.pair-results.two-results>div:last-child{grid-column:auto}@media(max-width:600px){.fraction-operation-fields{gap:10px}.math-tool .operation-fraction label{font-size:11px}.fraction-operation-symbol{font-size:24px}.math-tool .operation-fraction input{font-size:22px}}
.expanded-chips{display:flex;flex-wrap:wrap;gap:7px;margin:15px 0}.expanded-chips span{background:#eef5e9;border:1px solid #d2e0ca;padding:8px 10px;border-radius:8px;font-size:15px;font-variant-numeric:tabular-nums}.math-tool .selected-place td{background:#fff1d8;color:#5a461d;font-weight:700}.math-tool [data-number-heading]{overflow-wrap:anywhere;margin:25px 0 12px}
.centered-actions{justify-content:center}.table-print-paper{border:1px solid #d6e3d4;border-radius:12px;padding:24px;background:#fff;margin:20px 0}.table-print-paper h3{text-align:center;font-size:24px!important;margin:0 0 20px!important}.table-facts{display:grid;grid-template-columns:1fr;gap:8px;max-width:400px;margin:auto}.table-facts.two-columns{grid-template-columns:repeat(2,minmax(0,1fr));max-width:none;column-gap:22px}.table-facts>div{display:grid;grid-template-columns:1.2fr 20px 1fr 20px 1.6fr;gap:5px;align-items:center;padding:9px;border-radius:7px;background:#f2f7ed;font-size:17px;font-variant-numeric:tabular-nums}.table-facts>div span:last-child{font-weight:700;color:#176348;text-align:right}@media(max-width:600px){.table-print-paper{padding:18px 12px}.table-facts.two-columns{grid-template-columns:1fr;max-width:400px}.table-facts>div{font-size:16px}}@media print{body.worksheet-printing .table-facts.two-columns{display:grid!important;grid-template-columns:repeat(2,minmax(0,1fr));gap:6pt 16pt}body.worksheet-printing .table-facts>div{font-size:12pt;padding:5pt}}
.resource-pair{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;align-items:start}.resource-pair figure{margin:0!important}.table-chart-collection>label{font-weight:700;color:#31564b}.table-chart-collection>select{display:block;width:100%;max-width:450px;min-height:48px;padding:11px 14px;margin:10px 0 24px;border:1px solid #c6d8ca;background:#fff;border-radius:10px;font:inherit;font-size:16px}.math-lesson .table-chart-collection [hidden]{display:none!important}@media(max-width:700px){.resource-pair{grid-template-columns:1fr;gap:22px}}
.math-tool .hundred-grid{display:grid;grid-template-columns:repeat(10,minmax(0,1fr));gap:4px;margin:22px 0}.math-tool .hundred-grid button{min-height:40px;padding:7px 0;font-size:15px;font-weight:600;border:1px solid #d1dfd1;background:#f2f7ef;color:#2a523d;border-radius:5px}.math-tool .hundred-grid .skip-highlight{background:#c9e6d2;color:#164e34;border-color:#8fc4a2}.math-tool .hundred-grid .active{background:#efca86;color:#563508;border-color:#bf8734}@media(max-width:600px){.math-tool .hundred-grid{gap:2px}.math-tool .hundred-grid button{font-size:12px;min-height:32px}}
.math-lesson .probability-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin:20px 0}.math-lesson .probability-stats>div{border:1px solid #d7e5da;border-radius:14px;padding:14px;background:white;min-width:0}.math-lesson .probability-stats span{display:block;color:#52675d;font-size:.8rem}.math-lesson .probability-stats strong{display:block;font-size:1.4rem;overflow-wrap:anywhere}.math-lesson .probability-track{height:16px;background:#e1e9e1;border-radius:20px;overflow:hidden}.math-lesson .probability-track span{display:block;height:100%;background:#176f63}.math-lesson [data-observed-bar]{background:#ba6e24}.math-lesson .probability-bars p{font-size:.85rem;margin-bottom:6px}.math-lesson .coin-history{display:flex;flex-wrap:wrap;gap:5px}.math-lesson .coin-history span{display:grid;place-items:center;width:30px;height:30px;border-radius:50%;font-size:.75rem;font-weight:700}.math-lesson .coin-head{background:#e1f2e7;color:#15563e}.math-lesson .coin-tail{background:#fbeacf;color:#75470a}@media(max-width:600px){.math-lesson .probability-stats{grid-template-columns:repeat(2,minmax(0,1fr))}.math-lesson .probability-stats strong{font-size:1.15rem}}
.math-lesson .native-quiz [hidden]{display:none!important}.math-lesson .quiz-question{font-size:clamp(1.5rem,5vw,2.3rem);line-height:1.4;text-align:center;padding:20px 8px}.math-lesson .quiz-fraction{width:140px;margin:18px auto;display:grid;gap:8px;text-align:center}.math-lesson .quiz-fraction label{font-size:.8rem}.math-lesson .quiz-fraction input{text-align:center;font-size:1.5rem;min-height:52px}.math-lesson .quiz-fraction-bar{height:2px;background:#254d3a;margin:0 5px}.math-lesson .quiz-comparison{display:flex;justify-content:center;gap:12px;margin:22px 0}.math-lesson .quiz-comparison button{font-size:1.7rem;min-width:64px;min-height:58px}.math-lesson .quiz-comparison [aria-pressed=true]{background:#226e57;color:white;outline:3px solid #b7d8c3}.math-lesson .quiz-feedback{padding:14px;border-radius:12px;line-height:1.7}.math-lesson .quiz-feedback:empty{display:none}.math-lesson .quiz-correct{background:#e8f6ec;color:#1a5736}.math-lesson .quiz-review{background:#fff2df;color:#764a17}.math-lesson .quiz-feedback-list li{padding:12px 0;border-bottom:1px solid #d7e4d9}.math-lesson .quiz-feedback-list p{font-size:.9rem;margin:.4em 0}.math-lesson .quiz-fraction-picture{max-width:330px;margin-inline:auto}.math-lesson .native-quiz [data-quiz-play]{margin-top:24px;border-top:1px solid #d6e3d8;padding-top:18px}
.math-lesson .fizzbuzz-list{list-style:none;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(86px,1fr));gap:9px}.math-lesson .fizzbuzz-list li{padding:14px 5px;background:white;border:1px solid #dbe6dd;border-radius:12px;text-align:center;min-width:0}.math-lesson .fizzbuzz-list strong{font-size:.9rem}.math-lesson .fizzbuzz-list span{display:block;font-size:.8rem;margin-top:5px}.math-lesson .fizzbuzz-list span[hidden]{display:none}.math-lesson .fizzbuzz-list .fizzbuzz-fizz{background:#e9f4eb}.math-lesson .fizzbuzz-list .fizzbuzz-buzz{background:#fff1db}.math-lesson .fizzbuzz-list .fizzbuzz-both{background:#e9edf9}
.math-lesson .pictograph-row{border-top:1px solid #d7e5da;padding:12px 0}.math-lesson .pictograph-icons{display:flex;flex-wrap:wrap;gap:8px;min-height:30px}.math-lesson .pictograph-icon{display:inline-block;flex:0 0 24px;width:24px;height:24px;border:2px solid #29765e;border-radius:50%;background:#29765e}.math-lesson .pictograph-icon.half{background:linear-gradient(90deg,#29765e 50%,white 50%)}.math-lesson .counting-objects{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px;margin:20px 0}.math-lesson .counting-star{min-width:0;padding:8px 0;font-size:1.7rem;background:#fff4ce;color:#8a5908;border:1px solid #e9d597;min-height:48px}.math-lesson .counting-star[aria-pressed=true]{background:#e1f3e7;color:#1d603e;border-color:#9bc6a9}.math-lesson .counting-rhyme{border-left:4px solid #9bc6a9;background:#f1f7f0;padding:10px 20px;border-radius:0 14px 14px 0;line-height:2}
.math-lesson table.calendar-grid{table-layout:fixed;width:100%;max-width:100%;margin:18px 0;background:#fff;border-collapse:collapse}.math-lesson .calendar-grid th,.math-lesson .calendar-grid td{padding:8px 2px;text-align:center;border:1px solid #dce7de;font-size:.85rem;min-width:0}.math-lesson .calendar-grid th{background:#e7f2e9;font-size:.75rem}.math-lesson .calendar-grid caption{font-size:.8rem;color:#52695b;padding:8px}.math-lesson .weekday-cycle{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:4px;margin:20px 0}.math-lesson .weekday-cycle span{padding:12px 0;text-align:center;border:1px solid #d5e3d7;border-radius:8px;font-size:.75rem;background:#fff}.math-lesson .weekday-cycle .active{background:#226e57;color:white;font-weight:700}
.math-lesson .element-result{display:grid;grid-template-columns:140px minmax(0,1fr);gap:22px;align-items:center;margin:24px 0}.math-lesson .element-tile{border:1px solid #b8d4bf;border-radius:15px;background:#e4f2e6;padding:12px;text-align:center}.math-lesson .element-tile span:first-child{display:block;text-align:left;font-size:.85rem}.math-lesson .element-tile strong{display:block;font-size:3.4rem;line-height:1.3}.math-lesson .element-tile span:last-child{font-size:.8rem}.math-lesson .element-result dt{font-size:.8rem;color:#536b5e}.math-lesson .element-result dd{margin:4px 0 16px;font-weight:700}.math-lesson .particle-results{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin:24px 0}.math-lesson .particle-results>div{text-align:center;background:#fff;border:1px solid #d3e2d5;border-radius:12px;padding:13px 4px}.math-lesson .particle-results span{display:block;font-size:.75rem;color:#536b5e}.math-lesson .particle-results strong{display:block;font-size:1.8rem}@media(max-width:480px){.math-lesson .element-result{grid-template-columns:105px minmax(0,1fr);gap:14px}.math-lesson .element-tile strong{font-size:2.7rem}.math-lesson .element-result dd{font-size:.85rem}}
.math-lesson .learning-hub-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin:28px 0}.math-lesson .learning-hub-card{display:flex;flex-direction:column;padding:24px;border:1px solid #d7e4d8;border-radius:18px;background:#f7faf5;text-decoration:none;color:#204d3b}.math-lesson .learning-hub-card:hover{border-color:#699d78;background:#eff7ed}.math-lesson .learning-hub-card h2{margin:0;font-size:1.25rem}.math-lesson .learning-hub-card p{color:#53675c;font-size:.9rem;flex:1}.math-lesson .learning-hub-card span{font-weight:700;font-size:.85rem}@media(max-width:600px){.math-lesson .learning-hub-grid{grid-template-columns:minmax(0,1fr)}}
/* Coordinate controls shared by the two quarter-turn playgrounds. */
.math-lesson .rotation-widget [data-rotation-form]{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;max-width:680px;margin:0;padding:0 22px 22px}
.math-lesson .rotation-widget [data-rotation-form]>label{display:flex;flex-direction:column;gap:8px;min-width:0;font-size:.875rem;font-weight:700;color:#35584b;line-height:1.4}
.math-lesson .rotation-widget [data-rotation-form] input{display:block;width:100%;min-width:0;min-height:50px;padding:12px 14px;border:1px solid #bfcfc4;border-radius:12px;background:#fff;color:#203b32;font:inherit;font-size:1.05rem;font-variant-numeric:tabular-nums;box-shadow:0 1px 2px #163e3208;transition:border-color .15s,box-shadow .15s}
.math-lesson .rotation-widget [data-rotation-form] input:focus-visible{outline:3px solid #b9d9cb;outline-offset:2px;border-color:#34745c}
.math-lesson .rotation-widget [data-rotation-form] .tool-actions{grid-column:1/-1;display:flex;flex-wrap:wrap;gap:10px;margin:2px 0 0}
.math-lesson .rotation-widget [data-rotation-form] button{appearance:none;min-height:48px;padding:12px 20px;border:1px solid #2c6954;border-radius:12px;background:#2c6954;color:#fff;font:inherit;font-size:.9rem;font-weight:700;line-height:1.4;cursor:pointer;box-shadow:0 2px 3px #163e3210}
.math-lesson .rotation-widget [data-rotation-form] button.secondary{background:#fff;color:#2c6954;border-color:#c4d5c9;box-shadow:none}
.math-lesson .rotation-widget [data-rotation-form] button:hover{background:#225640}
.math-lesson .rotation-widget [data-rotation-form] button.secondary:hover{background:#eaf3eb}
.math-lesson .rotation-widget [data-rotation-form] button:focus-visible{outline:3px solid #b9d9cb;outline-offset:3px}
.math-lesson .rotation-widget .rot-error:empty{display:none}
@media(max-width:480px){.math-lesson .rotation-widget [data-rotation-form]{gap:12px;padding-inline:16px}.math-lesson .rotation-widget [data-rotation-form] input{padding:11px 12px}.math-lesson .rotation-widget [data-rotation-form] button{flex:1;padding:12px 10px}.math-lesson .rotation-widget .rot-head{padding:20px 16px}.math-lesson .rotation-widget .rot-tip{font-size:.9rem}}