.history-question{background:#fbf4e8;border-left:4px solid #8a5a22;border-radius:.5rem;margin:0 0 .8rem;padding:.6rem .8rem;font-weight:700}.history-packet,.history-timeline,.history-map{background:#fffaf1;border:1px solid #d9c7a8;border-radius:1rem;margin:1rem 0;padding:.85rem}.history-packet h3,.history-timeline h3,.history-map h3{margin:0 0 .5rem}.history-packet__prompt{font-weight:600}.history-packet__cards{grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr));gap:.9rem;display:grid}.history-source{background:#fff;border:1px solid #e3d5bd;border-radius:.8rem;min-width:0;padding:.75rem}.history-source--scenario{background:#f7f7fb;border-style:dashed}.history-source__badge{background:#efe2c9;border-radius:999px;margin:0 0 .35rem;padding:.1rem .5rem;font-size:.82rem;font-weight:700;display:inline-block}.history-source--scenario .history-source__badge{background:#e3e3f3}.history-source h4{margin:.2rem 0 .4rem}.history-source__fields{flex-wrap:wrap;gap:.25rem 1rem;margin:0 0 .5rem;font-size:.92rem;display:flex}.history-source__fields div{gap:.3rem;display:flex}.history-source__fields dt{font-weight:700}.history-source__fields dd{margin:0}.history-source figure,.history-map figure{margin:.5rem 0}.history-source img,.history-map img{background:#eee;border-radius:.5rem;width:100%;height:auto;display:block}.history-source p{overflow-wrap:anywhere;line-height:1.6}.history-source blockquote{background:#fbf6ec;border-left:3px solid #b48a4f;margin:.5rem 0;padding:.4rem .7rem;font-style:italic;line-height:1.6}.history-source__credit{color:#5b4a33;font-size:.85rem}.history-source button,.history-timeline button,.history-map button{white-space:normal;max-width:100%;min-height:44px}.history-timeline ol{border-left:3px solid #b48a4f;margin:0;padding:0 0 0 1rem;list-style:none}.history-timeline li{gap:.1rem;margin:0 0 .75rem;padding-left:.6rem;display:grid;position:relative}.history-timeline li:before{content:"";background:#8a5a22;border-radius:50%;width:.8rem;height:.8rem;position:absolute;top:.35rem;left:-1.5rem}.history-timeline__when{color:#6d4518;font-weight:700}.history-timeline__detail{font-size:.92rem}.history-map__legend{flex-wrap:wrap;gap:.3rem 1rem;padding:0;list-style:none;display:flex}.topic-map{overflow-wrap:anywhere;background:#f1f9f4;border:2px solid #8bb9a3;border-radius:20px;margin:14px 0;padding:14px}.topic-map h3,.topic-map h4{margin:4px 0 10px}.topic-map__text{background:#fff;border-radius:12px;padding:12px;line-height:1.5}.topic-map__choices{gap:8px;display:grid}.topic-map .topic-map__choices button{text-align:left;white-space:normal;width:100%;height:auto;min-height:48px;padding:10px 12px;line-height:1.35;display:block}.topic-map .topic-map__choices button[aria-pressed=true]{background:#d4ebda;border:2px solid #307147}.topic-map__center{text-align:center;background:#d4ebda;border:2px solid #307147;border-radius:18px;padding:12px;font-weight:700}.topic-map [data-topic-connection]{background:#fff;border-left:5px solid #307147;padding:10px}.topic-map [role=status]:empty{display:none}.topic-map [hidden]{display:none!important}.topic-map :focus-visible{outline-offset:3px;outline:3px solid #7040a3}.topic-map [data-topic-source]{background:#fff;border-radius:12px;margin:8px 0 12px;padding:8px}.topic-map [data-topic-source] summary{cursor:pointer;align-items:center;min-height:44px;font-weight:600;display:flex}.topic-map [data-topic-source] summary:before{content:"▸";margin-right:8px}.topic-map [data-topic-source][open] summary:before{content:"▾"}.topic-map .topic-map__text{margin:6px 0;padding:4px}.relationship-lab{color:#243f50;overflow-wrap:anywhere;background:#f7fcff;border:2px solid #c3d9e6;border-radius:18px;padding:16px}.relationship-lab h3,.relationship-lab h4{margin:0 0 10px;line-height:1.4}.relationship-lab p{line-height:1.65}.relationship-lab__pair article{background:#fff;border:1px solid #c2d2dd;border-radius:12px;padding:12px}.relationship-lab__pair article p{margin:0}.relationship-lab__link{text-align:center;color:#42778c;font-size:1.6rem;font-weight:700}.relationship-lab__choices{gap:10px;margin:14px 0;display:grid}.relationship-lab button{white-space:normal;max-width:100%;height:auto;min-height:44px;line-height:1.5}.relationship-lab [aria-pressed=true]{outline-offset:2px;outline:3px solid #437b8e}.relationship-lab__explanation{background:#edf7f2;border-left:4px solid #65a497;padding:10px}@media (width<=380px){.relationship-lab{padding:12px}.relationship-lab__pair article{padding:10px}}.paragraph-map{color:#203744;overflow-wrap:anywhere;background:#f5fcff;border:2px solid #b9d9e5;border-radius:20px;padding:16px}.paragraph-map h3,.paragraph-map h4{margin:0 0 12px;line-height:1.35}.paragraph-map__source{background:#fff;border-radius:12px;margin-bottom:14px;padding:2px 12px}.paragraph-map__source p{margin:12px 0;font-size:1rem;line-height:1.55}.paragraph-map__choices{gap:8px;display:grid}.paragraph-map .paragraph-map__choices>button,.paragraph-map [data-pmap-next],.paragraph-map__tools>button{white-space:normal;max-width:100%;height:auto;min-height:44px;padding:10px 12px;line-height:1.4}.paragraph-map .paragraph-map__choices>button{text-align:left;width:100%}.paragraph-map [aria-pressed=true]{outline-offset:1px;outline:3px solid #20738a}.paragraph-map [data-pmap-feedback]{min-height:1.5em;margin:12px 0}.paragraph-map__tools{flex-wrap:wrap;gap:8px;margin-top:12px;display:flex}.paragraph-map__whole{background:#e4f5ef;border:2px solid #38889d;border-radius:12px;padding:12px}.paragraph-map__whole p{margin:6px 0 0}.paragraph-map__connections{padding-left:28px}.paragraph-map__connections li{padding:8px 4px;line-height:1.5}.paragraph-map__retry{border-left:3px solid #d4952a;padding-left:10px}@media (width<=380px){.paragraph-map{padding:12px}.paragraph-map__tools{flex-direction:column}}.encoding-model{background:#f2faf5;border:2px solid #cbded4;border-radius:22px;margin:18px 0;padding:18px}.encoding-cards{grid-template-columns:repeat(auto-fit,minmax(min(100%,235px),1fr));gap:14px;display:grid}.encoding-cards[hidden]{display:none}.encoding-card{background:#fffef8;border-radius:16px;min-width:0;padding:16px;box-shadow:0 2px 6px #2549370c}.encoding-card .alphabet-glyph{text-align:center;font-size:4rem}.encoding-card button{white-space:normal;max-width:100%;min-height:48px}.encoding-model [role=status]{min-height:1.5em}.encoding-model>button{max-width:100%;min-height:48px}.encoding-card details{margin:10px 0}.encoding-card summary{cursor:pointer;min-height:44px}.reason-link{background:#f5fbf6;border:1px solid #b7d6cb;border-radius:1rem;margin:1.2rem 0;padding:1rem}.reason-link__sentences{gap:.65rem;display:grid}.reason-link__sentences button{text-align:left;white-space:normal;flex-direction:column;align-items:flex-start;gap:.3rem;width:100%;min-height:48px;line-height:1.5;display:flex}.reason-link__sentences button.is-point{background:#edf6fd;border:2px solid #377ba1}.reason-link__sentences button.is-reason{background:#edf7e9;border:2px solid #437c43}.reason-link__point,.reason-link__connection{background:#fff;border-left:4px solid #377ba1;padding:.8rem}.reason-link__connection{border-color:#437c43}.reason-link [data-reason-feedback]{min-height:1.5em}.reason-link button:focus-visible{outline-offset:3px;outline:3px solid #845db0}.reason-link [hidden]{display:none!important}.count-trail{background:#f5faf5;border:1px solid #b2cabc;border-radius:18px;margin:16px 0;padding:16px}.count-trail__number{text-align:center;flex-direction:column;gap:4px;display:flex;margin:0!important}.count-trail__number strong{color:#174d39;font-size:clamp(2.5rem,8vw,4rem);line-height:1.1}.count-trail__number span{font-size:1.2rem}.count-trail__picture{max-width:300px;margin:10px auto}.count-trail__picture svg{width:100%;height:auto;display:block}.count-trail label{margin:12px 0;display:block}.count-trail label[hidden]{display:none}.count-trail select{width:100%;min-height:44px;margin-top:5px;display:block}.count-trail__prediction{background:#fff;border:1px solid #b2cabc;border-radius:12px;margin:12px 0;padding:12px}.count-trail button{min-height:44px}.count-trail [data-count-feedback]{min-height:1.6em}.count-trail figcaption{font-size:.9rem}.count-trail.is-static{max-width:320px;margin-inline:auto}.word-parts{color:#20394a;overflow-wrap:anywhere;background:#f8fcff;border:2px solid #c4d9e7;border-radius:18px;padding:16px}.word-parts h3,.word-parts h4{margin:0 0 12px;line-height:1.4}.word-parts h4{margin-top:16px;font-size:1.7rem}.word-parts__variants,.word-parts__modes{flex-wrap:wrap;gap:8px;margin:12px 0;display:flex}.word-parts button{white-space:normal;max-width:100%;height:auto;min-height:44px;padding:10px 12px;line-height:1.4}.word-parts [aria-pressed=true]{outline-offset:1px;outline:3px solid #315e8c}.word-parts__tiles{flex-wrap:wrap;gap:5px;margin:16px 0;display:flex}.word-parts .word-parts__tile{color:#203744;background:#e7eafc;border:1px solid #9cb3d4;font-size:1.5rem;font-weight:700}.word-parts .word-parts__tile--prefix{background:#d8eef5}.word-parts .word-parts__tile--base{background:#fff0bd}.word-parts .word-parts__tile--suffix{background:#e8ddfa}.word-parts .word-parts__tile--root{background:#dff3dc}.word-parts [data-wp-feedback]{border-left:3px solid #7da1b7;min-height:3em;padding-left:10px}@media (width<=380px){.word-parts{padding:12px}.word-parts__modes{flex-direction:column}.word-parts .word-parts__tile{padding:10px;font-size:1.25rem}}.learn-science-model{color:#203f37;background:linear-gradient(135deg,#edf8f4,#f6f4e6);border:2px solid #b2ced3;border-radius:20px;margin:1.2rem 0;padding:clamp(.75rem,3vw,1.4rem);overflow:hidden}.learn-science-model svg{width:100%;max-width:650px;margin:.75rem auto;display:block}.learn-science-model button{white-space:normal;min-height:44px}.learn-science-model .science-sound{align-items:center;gap:.65rem;min-height:44px;display:flex}.learn-science-model input[type=checkbox]{flex:0 0 22px;width:22px;height:22px}.learn-science-model select{width:100%;min-width:0;min-height:44px;font:inherit;color:#203f37;background:#fff;border:1px solid #66867b;border-radius:8px;padding:.6rem}.learn-science-model [role=status]{min-height:3em}.science-samples{flex-wrap:wrap;gap:.6rem;margin:1rem 0;display:flex}.science-samples button{flex-direction:column;flex:105px;align-items:center;gap:.35rem;display:flex;padding:.7rem!important}.science-samples button[aria-pressed=true]{outline-offset:1px;outline:3px solid #296c55}.science-samples span{font-size:2rem}.science-sample-results{grid-template-columns:repeat(auto-fit,minmax(min(100%,210px),1fr));gap:.7rem;display:grid}.science-sample-results article{background:#fffef9;border:1px solid #bac9c2;border-radius:12px;padding:.9rem}.science-sample-results h3{margin:0 0 .5rem;font-size:1.05rem}.science-sample-results dl{margin:.5rem 0}.science-sample-results dt{font-size:.85rem;font-weight:700}.science-sample-results dd{margin:0 0 .5rem}.science-sample-results p{font-size:.92rem}.learn-science-model>label{margin:.75rem 0;display:block}.science-trace{flex-wrap:wrap;gap:.6rem;padding:0;list-style-position:inside;display:flex}.science-trace li{background:#fffef9;border:1px solid #789d91;border-radius:10px;padding:.65rem}.science-trace [aria-current=step]{outline:3px solid #296c55}.science-data{border-collapse:collapse;width:100%;font-size:.95rem}.science-data caption{text-align:left;margin:.6rem 0;font-weight:700}.science-data th,.science-data td{text-align:left;border:1px solid #789d91;padding:.45rem}.learn-science-diagram{background:#fffef9;border:1px solid #b2ced3;border-radius:16px;margin:1.1rem 0;padding:.75rem}.learn-science-diagram img{border-radius:10px;width:100%;max-width:720px;height:auto;margin:.5rem auto;display:block}.learn-science-diagram__title{color:#203f37;font-weight:700}@media print{.learn-science-diagram{break-inside:avoid}}.learn-language-lab{background:#f3faf6;border:1px solid #b7d4c6;border-radius:18px;margin:1.25rem 0;padding:1rem}.learn-language-lab h3{margin-top:0}.learn-language-lab fieldset{border:0;border-top:1px solid #b7d4c6;min-width:0;margin:1rem 0;padding:1rem 0}.learn-language-lab legend{padding:0 .4rem 0 0;font-weight:700}.learn-language-choices{flex-wrap:wrap;gap:.5rem;display:flex}.learn-language-lab button{white-space:normal;overflow-wrap:anywhere;max-width:100%;min-height:44px}.learn-language-choices [aria-pressed=true]{color:#fff!important;background:#246a50!important;border-color:#246a50!important}.learn-language-sentence{font-size:1.18rem;font-weight:600;line-height:1.6}.learn-language-sentence mark{color:#273b33;-webkit-box-decoration-break:clone;box-decoration-break:clone;background:#fff0ac;padding:.1rem .15rem}.learn-language-lab button:focus-visible{outline-offset:3px;outline:3px solid #146c97}.learn-language-result p{overflow-wrap:anywhere}@media print{.learn-language-lab button{display:none!important}.learn-language-lab{break-inside:avoid}}.learn-title-underline{text-underline-offset:.15em;text-decoration:underline}.learn-language-picture{max-width:360px;margin:12px 0 16px}.learn-language-picture svg{width:100%;height:auto;display:block}.learn-language-picture figcaption{color:#35584b;margin-top:8px;font-size:.92rem;line-height:1.45}@media print{.learn-language-picture{break-inside:avoid;max-width:220px}}.learn-sentence-builder{background:#f7f6ff;border:1px solid #c9c7e5;border-radius:18px;margin:1.25rem 0;padding:1rem}.learn-sentence-builder h3{margin-top:0}.learn-sentence-builder fieldset{border:0;border-top:1px solid #c9c7e5;min-width:0;margin:1rem 0;padding:1rem 0}.learn-sentence-builder legend{padding:0 .4rem 0 0;font-weight:700}.learn-sentence-pieces{gap:.4rem;margin:.75rem 0;padding:0;list-style:none;display:grid}.learn-sentence-pieces li{background:#fff;border:1px solid #d4d0eb;border-radius:10px;grid-template-columns:minmax(0,1fr) 44px 44px;align-items:center;gap:.3rem;padding:.35rem;display:grid}.learn-sentence-pieces span{overflow-wrap:anywhere;font-weight:600}.learn-sentence-builder button{white-space:normal;overflow-wrap:anywhere;max-width:100%;min-height:44px}.learn-sentence-pieces button{width:44px;padding:0!important}.learn-sentence-builder :focus-visible{outline-offset:2px;outline:3px solid #6558a4}.learn-sentence-preview{overflow-wrap:anywhere;background:#ece9fa;border-radius:10px;padding:.8rem;font-size:1.12rem;line-height:1.6}.learn-sentence-feedback:not(:empty){border-left:4px solid #6558a4;margin-top:.8rem;padding:.7rem}.learn-sentence-feedback{overflow-wrap:anywhere}@media print{.learn-sentence-builder button,.learn-sentence-pieces{display:none!important}.learn-sentence-builder{break-inside:avoid}}.learn-sound-mat{color:#173d32;background:#eef6f0;border:2px solid #abc7bc;border-radius:20px;margin:20px 0;padding:18px}.sound-stones{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:20px 0;display:grid}.sound-stone{flex-direction:column;align-items:center;min-width:0;transition:transform .15s,box-shadow .15s;transform:translateY(0);box-shadow:0 8px #bfd8ca;color:#346c83!important;background:#fff!important;border:2px solid #a9c6d0!important;min-height:78px!important;display:flex!important}.sound-stone span{font-size:32px;line-height:1}.sound-stone small{font-size:14px}.sound-stone[aria-pressed=true]{transform:translateY(6px);box-shadow:0 2px #90adbb;background:#d3e7fa!important}.sound-whole-word{letter-spacing:.03em;font-size:32px;font-weight:700}.sound-parts{flex-wrap:wrap;gap:8px;display:flex}.sound-parts span{border-bottom:3px solid #346c83;padding:8px;font-size:24px}.oral-observations fieldset{border:1px solid #b5c9c0;border-radius:12px;min-width:0;margin:18px 0;padding:14px}.oral-observations label{margin-top:12px;display:block}.oral-observations input,.oral-observations select{box-sizing:border-box;width:100%;max-width:100%;min-height:44px}.oral-confirm{align-items:flex-start;gap:10px;margin:22px 0;display:flex!important}.oral-confirm input{flex:0 0 22px;width:22px;height:22px;margin-top:3px}@media (width>=600px){.sound-stones{grid-template-columns:repeat(6,minmax(0,1fr))}}@media (prefers-reduced-motion:reduce){.sound-stone{transition:none}}@media print{.learn-sound-mat{break-inside:avoid}.sound-stone{box-shadow:none;transform:none}}.learn-activity label[hidden]{display:none}.sound-stones.sound-pair{grid-template-columns:repeat(2,minmax(0,1fr));max-width:360px}.sound-focus{color:#2b2140;background:#f5f1ff;border:2px solid #b5a2d8;border-radius:18px;margin:16px 0;padding:14px}.sound-focus-tiles{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;display:grid}.sound-focus[data-mode=vowels] .sound-focus-tiles{grid-template-columns:repeat(2,minmax(0,1fr))}.sound-focus .sound-focus-tiles button{color:#34254d;white-space:normal;background:#fff;border:2px solid #8970b4;flex-direction:column;justify-content:center;align-items:center;gap:6px;min-width:0;min-height:96px;padding:10px 4px;display:flex}.sound-focus-tiles button span{font-size:2rem;line-height:1.1;display:block}.sound-focus-tiles button strong{font-size:1rem;line-height:1.3}.sound-focus-tiles button[aria-pressed=true]{color:#fff;background:#5a3f84;border-color:#34254d}.sound-focus button{min-height:44px}.sound-focus p{line-height:1.45}