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var(--glitch-blue);justify-content:center;align-items:center;display:flex;position:absolute;inset:0}.grammar-matrix-value.is-active,.grammar-matrix[data-has-selection=false] .grammar-matrix-value:focus-visible{background:linear-gradient(45deg, transparent 5%, var(--voltage) 5%);box-shadow:var(--shadow-chromatic), 4px 4px 0 var(--shadow-color);color:var(--on-voltage);transform:translate(-2px,-2px)}.grammar-matrix-value.is-active:after,.grammar-matrix[data-has-selection=false] .grammar-matrix-value:focus-visible:after{animation:.56s steps(2,end) grammar-answer-glitch}.grammar-matrix[data-has-selection=false] tbody tr:has(.grammar-matrix-value:focus-visible)>.grammar-matrix-row-label{font-size:1.5rem;font-weight:800}.grammar-matrix tbody tr:has(.grammar-matrix-value.is-active)>.grammar-matrix-row-label{font-size:1.5rem;font-weight:800}.grammar-matrix[data-has-selection=false]:has(tbody td:first-of-type .grammar-matrix-value:focus-visible) thead .grammar-matrix-column-label:nth-child(2){font-size:1.5rem;font-weight:800}.grammar-matrix:has(tbody td:first-of-type .grammar-matrix-value.is-active) thead .grammar-matrix-column-label:nth-child(2){font-size:1.5rem;font-weight:800}.grammar-matrix[data-has-selection=false]:has(tbody td:nth-of-type(2) .grammar-matrix-value:focus-visible) thead .grammar-matrix-column-label:nth-child(3){font-size:1.5rem;font-weight:800}.grammar-matrix:has(tbody td:nth-of-type(2) .grammar-matrix-value.is-active) thead .grammar-matrix-column-label:nth-child(3){font-size:1.5rem;font-weight:800}.grammar-matrix[data-has-selection=false]:has(tbody td:nth-of-type(3) .grammar-matrix-value:focus-visible) thead .grammar-matrix-column-label:nth-child(4){font-size:1.5rem;font-weight:800}.grammar-matrix:has(tbody td:nth-of-type(3) .grammar-matrix-value.is-active) thead .grammar-matrix-column-label:nth-child(4){font-size:1.5rem;font-weight:800}.grammar-matrix[data-has-selection=false]:has(tbody td:nth-of-type(4) .grammar-matrix-value:focus-visible) thead .grammar-matrix-column-label:nth-child(5){font-size:1.5rem;font-weight:800}.grammar-matrix:has(tbody td:nth-of-type(4) .grammar-matrix-value.is-active) thead .grammar-matrix-column-label:nth-child(5){font-size:1.5rem;font-weight:800}.empty-content{min-height:220px}.empty-content h2{font-family:var(--font-display), monospace;font-size:2.4rem;font-weight:400}.category-carousel{grid-template-columns:44px minmax(0,1fr) 44px;grid-template-areas:"previous window next";align-items:center;gap:.5rem;max-width:42rem;display:grid}.category-carousel[data-overflow=false]{grid-template-columns:minmax(0,1fr);grid-template-areas:"window";max-width:36rem}.category-carousel-window{background:var(--surface);border:1px solid var(--ink);color:var(--ink);border-radius:10px;grid-area:window;min-width:0;overflow:hidden}.category-carousel-viewport{overscroll-behavior-x:contain;scrollbar-width:none;scroll-snap-type:x 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var(--shadow-color);transform:translate(-1px,-1px)}.choice-option:hover:not(:disabled):not(.is-selected),.passage-sentence:not(.is-dragging) button.passage-token:hover:not(:disabled){background:var(--voltage);box-shadow:.2rem .2rem 0 var(--shadow-color);color:var(--on-voltage);transform:translate(-.2rem,-.2rem)}.passage-sentence:not(.is-dragging) button.passage-token:active:not(:disabled){box-shadow:none;transform:translate(0)}}@media (max-width:900px){.hero{grid-template:"copy""showcase"/minmax(0,1fr);row-gap:clamp(2.5rem,6vw,4rem);min-height:0}.hero-copy{width:100%;max-width:650px;margin-inline:auto}.sentence-demo{width:100%;max-width:650px;margin-inline:auto;animation-name:rise-in;transform:none}.mode-showcase{width:100%;max-width:650px;margin-inline:auto;padding-right:2rem;animation-name:rise-in}.sentence-demo-titlebar{grid-template-columns:1fr auto 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(max-width:560px){.grammar-label-full{display:none}.grammar-label-short{display:inline}.grammar-matrix{border-spacing:.25rem;min-width:18rem}.grammar-matrix th:first-child{width:2.75rem}.grammar-matrix-value{min-width:2.8rem;min-height:52px;padding-inline:.35rem;font-size:1.15rem}.category-scroll-button{min-height:58px}.practice-category-button{flex-direction:column;gap:.15rem;min-height:58px;padding-inline:.15rem;font-size:clamp(.72rem,2.9vw,.875rem)}.brand-name{font-size:1.18rem}.local-date-time{min-width:0}.mode-showcase{padding-right:1.25rem}.mode-showcase-stack{height:310px}.sentence-demo.mode-showcase-card{height:285px}.sentence-demo.mode-showcase-card[data-position="1"]{transform:translate(9px,8px)rotate(.65deg)scale(.985)}.sentence-demo.mode-showcase-card[data-position="2"]{transform:translate(18px,16px)rotate(1.1deg)scale(.97)}.mode-preview-body{min-height:245px;padding:1.4rem}.mode-preview-body p{font-size:1.55rem}.practice-main{padding-top:0}.practice-heading h1{font-size:clamp(3.35rem,17vw,4.5rem)}.question-card-header{align-items:flex-start}.question-card{min-height:440px;padding:1.05rem}.choice-prompt{font-size:1.65rem}.choice-option{grid-template-columns:auto 1fr}.choice-result{grid-column:2}.question-actions{flex-direction:column}.question-actions .button{width:100%}.brush-toolbar{flex-direction:column;align-items:stretch}.brush-group{width:100%}.brush-group-label{flex-basis:100%}.brush-tool{flex:auto}.brush-actions{width:100%;margin-left:0}.brush-actions>*{flex:1}.passage-sentence{padding:1rem;font-size:1.45rem}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.001ms!important;animation-duration:.001ms!important;animation-iteration-count:1!important}.demo-caret{opacity:1}}