.reading-scene-img{aspect-ratio:4/3;color:color-mix(in srgb, var(--green) 55%, var(--ink-4));background:radial-gradient(120% 140% at 12% -10%, color-mix(in srgb, var(--green) 22%, transparent), transparent 60%), radial-gradient(120% 140% at 105% 115%, color-mix(in srgb, var(--amber) 16%, transparent), transparent 60%), var(--bg-3);place-items:center;display:grid;overflow:hidden}.reading-scene-img--card{border-radius:var(--r-lg) var(--r-lg) 0 0;border-bottom:1px solid var(--line);margin:-20px -20px 0}.reading-scene-img--tile{aspect-ratio:16/10}.reading-scene-img--hero{border-radius:var(--r-md);border:1px solid var(--line);width:100%}@media (min-width:640px){.reading-scene-img--hero{flex:none;width:300px}}.reading-md>p,.reading-md>ul,.reading-md>ol,.reading-md>blockquote{max-width:56ch}.reading-md :first-child{margin-top:0}.reading-md :last-child{margin-bottom:0}.reading-md p{margin:0 0 14px}.reading-md ul,.reading-md ol{margin:0 0 14px 20px}.reading-md li,.reading-md li>p{margin-bottom:4px}.reading-md strong{color:var(--ink);font-weight:800}.reading-md em{color:var(--ink-2);font-style:italic}.reading-md blockquote{border-left:3px solid var(--line);color:var(--ink-2);margin:0 0 14px;padding-left:14px}.reading-md code{font-family:var(--font-mono);background:var(--bg-2);border-radius:4px;padding:1px 6px;font-size:.88em}.mtch-lede{color:var(--ink-3);margin:0 0 13px;font-size:12.5px;line-height:1.5}.mtch-board{touch-action:pan-y;grid-template-columns:minmax(0,1fr) minmax(0,1fr);grid-auto-rows:1fr;gap:10px clamp(30px,11%,50px);display:grid;position:relative}.mtch-wires{pointer-events:none;z-index:0;width:100%;height:100%;position:absolute;inset:0;overflow:visible}.mtch-wires path{fill:none;stroke-linecap:round;stroke-width:2.5px}.mtch-wires .ghost{stroke-dasharray:5 6;opacity:.9}.mtch-card{z-index:1;border-radius:var(--r-md);background:var(--bg-elev);border:1px solid var(--line);min-height:52px;box-shadow:0 2px 0 var(--line);color:var(--ink);text-align:left;cursor:pointer;-webkit-user-select:none;user-select:none;overflow-wrap:break-word;touch-action:pan-y;-webkit-tap-highlight-color:transparent;align-items:center;gap:10px;width:100%;padding:8px 18px 8px 14px;font-family:inherit;font-size:16px;font-weight:600;line-height:1.3;transition:border-color .15s,background .15s,box-shadow .15s,transform .1s;display:flex;position:relative}.mtch:not(.checked) .mtch-card{touch-action:none}.mtch-card.right{text-align:right;justify-content:flex-end;padding:8px 14px 8px 18px;font-weight:500}.mtch-card.has-pic{min-height:64px;padding-block:4px}.mtch-card.left.has-pic{padding-left:4px}.mtch-card.right.has-pic{flex-direction:row-reverse;justify-content:flex-start;padding-right:4px}.mtch-thumb{border-radius:var(--r-sm);background:var(--bg-2);flex:none;width:56px;height:56px;overflow:hidden}.mtch-thumb picture{width:100%;height:100%;display:block}@media (max-width:639px){.mtch-card{min-height:46px;padding:6px 14px 6px 12px;font-size:15px;line-height:1.25}.mtch-card.right{padding:6px 12px 6px 14px}.mtch-card.has-pic{min-height:52px;padding-block:3px}.mtch-thumb{width:46px;height:46px}}.mtch-thumb img{object-fit:cover}.mtch-thumb-emoji{font-size:28px}@media (max-width:359px){.mtch-card.has-pic{gap:8px;min-height:52px}.mtch-thumb{width:40px;height:40px}}.mtch-txt{min-width:0}.mtch:not(.checked) .mtch-card:hover{border-color:var(--line-strong);background:var(--bg-3)}.mtch:not(.checked) .mtch-card:active{transform:scale(.99)}.mtch.checked .mtch-card{cursor:default}.mtch-node{background:var(--bg);border:2px solid var(--line-strong);z-index:3;cursor:grab;touch-action:none;width:18px;height:18px;font-family:var(--font-mono);color:#0000;border-radius:50%;place-items:center;font-size:10px;font-weight:800;line-height:1;transition:all .15s;display:grid;position:absolute;top:50%;transform:translateY(-50%)}.mtch-node:after{content:"";border-radius:50%;position:absolute;inset:-8px}.mtch-node:active{cursor:grabbing}.mtch-card.left .mtch-node{right:-9px}.mtch-card.right .mtch-node{left:-9px}.mtch-card.dragging,.mtch-card.armed,.mtch-card.drop-ok{border-color:color-mix(in srgb, var(--green) 45%, transparent);background:color-mix(in srgb, var(--green) 8%, var(--bg-elev));box-shadow:0 0 0 3px color-mix(in srgb, var(--green) 12%, transparent)}.mtch-card.armed .mtch-node{border-color:var(--green);background:var(--green);animation:1.4s ease-in-out infinite mtch-pulse}@keyframes mtch-pulse{0%,to{box-shadow:0 0 0 3px color-mix(in srgb, var(--green) 28%, transparent)}50%{box-shadow:0 0 0 8px #0000}}.mtch-card.paired{border-color:color-mix(in srgb, var(--c) 55%, transparent);background:color-mix(in srgb, var(--c) 7%, var(--bg-elev))}.mtch-card.paired .mtch-node{background:var(--c);border-color:var(--c);box-shadow:0 0 0 3px color-mix(in srgb, var(--c) 22%, transparent);color:var(--on-accent)}.mtch-card.correct{border-color:color-mix(in srgb, var(--green) 50%, transparent);background:var(--green-soft)}.mtch-card.correct .mtch-node{background:var(--green);border-color:var(--green);color:var(--on-accent)}.mtch-card.wrong{border-color:color-mix(in srgb, var(--brick) 50%, transparent);background:var(--brick-soft);animation:.38s mtch-shake}.mtch-card.wrong .mtch-node{background:var(--brick);border-color:var(--brick);color:var(--on-accent)}@keyframes mtch-shake{0%,to{transform:translate(0)}25%{transform:translate(-4px)}50%{transform:translate(4px)}75%{transform:translate(-2px)}}.mtch-foot{align-items:center;gap:9px;min-height:20px;margin-top:14px;display:flex}.mtch-bar{background:var(--bg-3);border-radius:99px;flex:none;width:min(120px,34%);height:5px;overflow:hidden}.mtch-bar i{background:var(--green);border-radius:99px;height:100%;transition:width .3s;display:block}.mtch-num{color:var(--ink-3);font-size:11.5px;font-weight:600;font-family:var(--font-mono);white-space:nowrap}.mtch-res{white-space:nowrap;font-size:12px;font-weight:700}.mtch-res.win{color:var(--green)}.mtch-res.part{color:var(--amber-3)}.mtch-res.hint{color:var(--ink-3);font-weight:600}.reading-md .reading-term,.listening-transcript .reading-term{color:inherit;font-weight:inherit;-webkit-text-decoration:underline dotted var(--ink-3);text-decoration:underline dotted var(--ink-3);text-underline-offset:3px;background:0 0;border-radius:0;padding:0}.reading-md .reading-term:hover,.reading-md .reading-term.is-open,.listening-transcript .reading-term:hover,.listening-transcript .reading-term.is-open{background:var(--green-soft)}
.demo{margin:4px 0 0}.demo-index{border-top:1px solid var(--line);margin:0 0 8px;display:grid}.demo-index a{border-bottom:1px solid var(--line);color:var(--ink);grid-template-columns:18px auto minmax(0,1fr) auto;align-items:center;gap:2px 12px;padding:14px 4px;text-decoration:none;transition:background .15s;display:grid}.demo-index a:hover{background:color-mix(in srgb, var(--green) 6%, transparent)}.demo-index a:focus-visible{outline:2px solid var(--focus-ring);outline-offset:-2px;border-radius:var(--r-sm)}.demo-index svg{color:var(--accent-ink)}.demo-index-name{font-size:15px;font-weight:700}.demo-index-title{text-overflow:ellipsis;white-space:nowrap;min-width:0;color:var(--ink-2);font-size:15px;overflow:hidden}.demo-index-meta{color:var(--ink-3);white-space:nowrap;font-variant-numeric:tabular-nums;font-size:13px}@media (max-width:520px){.demo-index a{grid-template-columns:18px minmax(0,1fr) auto;padding:12px 2px}.demo-index-title{grid-area:2/2/auto/4;font-size:14px}}.demo-sample{padding-top:56px;scroll-margin-top:72px}.demo-h2{letter-spacing:-.02em;color:var(--ink);margin:0 0 18px;font-size:24px;font-weight:800;line-height:1.2}.demo-head{justify-content:space-between;align-items:flex-start;gap:24px;margin-bottom:20px;display:flex}.demo-meta{color:var(--ink-3);flex-wrap:wrap;align-items:center;gap:6px 10px;margin:0 0 8px;font-size:13px;display:flex}.demo-title{letter-spacing:-.01em;color:var(--ink);margin:0;font-size:20px;font-weight:700;line-height:1.25}.demo-desc{max-width:62ch;color:var(--ink-2);margin:6px 0 0;font-size:15px;line-height:1.55}.demo-sub{color:var(--ink-3);margin:0 0 8px;font-size:13px;font-weight:700}.demo-note{color:var(--ink-3);margin:10px 0 0;font-size:14px;line-height:1.5}.demo-scene{border:1px solid var(--line);border-radius:var(--r-md);flex:none;width:220px}@media (max-width:639px){.demo-head{gap:14px}.demo-scene{border-radius:var(--r-sm);width:104px}}.demo-after{max-width:68ch;color:var(--ink-3);margin:16px 0 0;font-size:14px;line-height:1.55}.demo-link{color:var(--accent-ink);align-items:center;gap:4px;margin:-12px 0;padding:12px 0;font-weight:700;text-decoration:none;display:inline-flex}.demo-link:hover{text-underline-offset:3px;text-decoration:underline}.demo-link svg{flex:none}.demo-transcript{border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.demo-transcript summary{cursor:pointer;min-height:48px;color:var(--accent-ink);justify-content:space-between;align-items:center;gap:12px;font-size:15px;font-weight:700;list-style:none;display:flex}.demo-transcript summary::-webkit-details-marker{display:none}.demo-transcript summary svg{transition:transform .2s var(--ease-out)}.demo-transcript[open] summary svg{transform:rotate(180deg)}.demo-transcript summary:focus-visible{outline:2px solid var(--focus-ring);outline-offset:2px;border-radius:var(--r-sm)}.demo-transcript-body{border:1px solid var(--line);border-radius:var(--r-lg);background:var(--bg-elev);margin:0 0 16px;padding:18px 20px}.demo-pt,.demo-translation{white-space:pre-line;margin:0 0 14px;font-size:16px;line-height:1.7}.demo-pt{color:var(--ink)}.demo-translation{color:var(--ink-3);margin:0;font-size:15px}@media (prefers-reduced-motion:reduce){.demo-transcript summary svg{transition:none}}.demo-task{margin-bottom:20px}.demo-answer{margin:0 0 24px}.demo-answer figcaption{color:var(--ink-3);margin:0 0 8px;font-size:13px;font-weight:700}.demo-answer-text{border:1px solid var(--line);border-radius:var(--r-lg);background:var(--bg-elev);color:var(--ink);padding:22px 24px;font-size:16px;line-height:1.7}.demo-answer-text p{max-width:62ch;margin:0 0 12px}.demo-answer-text p:last-child{margin-bottom:0}.demo-answer-note{color:var(--ink-3);margin:8px 0 0;font-size:13px}.demo-review{margin-bottom:28px}.demo-provenance{max-width:68ch;color:var(--ink-3);margin:10px 0 0;font-size:13px;line-height:1.5}.demo-rubric .demo-desc{margin-bottom:12px}.demo-criteria{border-top:1px solid var(--line);margin:0 0 22px}.demo-criteria>div{border-bottom:1px solid var(--line);grid-template-columns:minmax(150px,220px) minmax(0,1fr);gap:4px 20px;padding:11px 0;font-size:15px;line-height:1.45;display:grid}.demo-criteria dt{color:var(--ink);font-weight:700}.demo-criteria dd{color:var(--ink-2);margin:0}@media (max-width:560px){.demo-criteria>div{grid-template-columns:1fr}}.demo-bands{grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin:0 0 16px;padding:0;list-style:none;display:grid}.demo-bands li{border:1px solid var(--line);border-radius:var(--r-sm);background:var(--bg-2);flex-direction:column;gap:2px;min-height:64px;padding:10px 12px;display:flex;position:relative}.demo-bands b{color:var(--ink-2);font-size:13px;font-weight:700}.demo-bands span{color:var(--ink-3);font-variant-numeric:tabular-nums;font-size:13px}.demo-bands li[data-on]{border-color:color-mix(in srgb, var(--green) 45%, transparent);background:color-mix(in srgb, var(--green) 12%, var(--bg-elev))}.demo-bands li[data-on] b{color:var(--accent-ink)}.demo-band-score{letter-spacing:-.02em;color:var(--accent-ink);font-variant-numeric:tabular-nums;font-size:22px;font-weight:800;line-height:1;position:absolute;top:8px;right:10px}@media (max-width:480px){.demo-bands{grid-template-columns:repeat(2,minmax(0,1fr))}}.demo-why{max-width:68ch;color:var(--ink-2);margin:0;font-size:15px;line-height:1.55}.demo-final{border:1px solid color-mix(in srgb, var(--green) 30%, transparent);border-radius:var(--r-xl);background:color-mix(in srgb, var(--green) 7%, var(--bg-elev));margin:48px 0 8px;padding:28px}.demo-final h2{letter-spacing:-.02em;color:var(--ink);margin:0 0 8px;font-size:22px;font-weight:800;line-height:1.2}.demo-final p{max-width:60ch;color:var(--ink-2);margin:0 0 20px;font-size:15px;line-height:1.55}@media (max-width:520px){.demo-final{padding:22px 18px}.demo-final .btn{width:100%}.demo-answer-text{padding:16px 18px}}