:root{--left-little:#f7b4c8;--left-ring:#ffc383;--left-middle:#f3e16f;--left-index:#97d9a9;--left-thumb:#d4dce8;--right-thumb:#eee0cc;--right-index:#87dce0;--right-middle:#a8c8fa;--right-ring:#c5b1ee;--right-little:#edb5e7;color:#20252b;font-synthesis:none;--mono:ui-monospace, SFMono-Regular, Menlo, monospace;--line:#c6cbd1;background:#fafafa;font-family:system-ui,-apple-system,sans-serif}*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0}button,input,select{font:inherit}button,select,input{color:inherit;background:#fff;border:1px solid #8b929c;border-radius:4px;padding:8px 11px}button{cursor:pointer}button:hover:not(:disabled){background:#e7ecf1}button:disabled{opacity:.45;cursor:default}:focus-visible{outline-offset:3px;outline:3px solid #205bca}a{color:#2459a8}p{margin:8px 0;line-height:1.5}h1,h2{margin:0;font-weight:600}h1{font-size:22px}h2{font-size:15px}.topbar,main{width:min(1080px,100% - 40px);margin:auto}.topbar{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;height:64px;display:flex}.topbar a{font-size:13px}#content{height:312px;padding:18px 0 0;overflow:auto}.practice-top,.practice-metrics,.entry-heading{justify-content:space-between;align-items:center;gap:16px;display:flex}.practice-top{height:28px;font-size:12px}.practice-metrics,.entry-heading,.eyebrow{font-size:12px}.text-button{background:0 0;border:0;padding:4px 0;text-decoration:underline}.progress-track{background:#d8dde3;height:2px}.progress-track>div{background:#2459a8;height:2px}.passage{height:76px;font:20px/1.9 var(--mono);color:#616975;scrollbar-width:thin;margin:12px 0;position:relative;overflow-y:auto}.passage>span{white-space:nowrap;padding:0 2px;display:inline-block}.passage .active{color:#172c50;background:#dce8ff;box-shadow:0 2px #2459a8}.passage .passed{color:#297143}.entry-heading{height:22px}.word-entry{background:#fff;border:1px solid #8995a5;border-radius:4px;align-items:center;gap:20px;height:57px;padding:10px 14px;display:flex}.target-word{border-right:1px solid var(--line);min-width:140px;font:24px var(--mono);color:#596372}.word-entry input{width:100%;min-width:0;font:24px var(--mono);background:0 0;border:0;outline:none;padding:0}.word-entry input::placeholder{font:16px var(--mono);color:#6a7380}.word-entry:focus-within{outline:2px solid #2459a8}.needs-retry{border-color:#a83225}.feedback{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:6px 12px;height:88px;padding:8px 0;font-size:12px;display:flex;overflow:auto}.feedback p{margin:3px 0}.feedback>div:first-child{flex:1}.feedback.mistake{color:#87291d}.input-message{margin:0;font-size:12px}.attempt-details{flex-wrap:wrap;flex-basis:100%;gap:4px;display:flex}.press-result{border:1px solid var(--line);border-radius:3px;padding:3px 6px}.press-result.ok{background:#e1f2e5}.press-result.wrong{background:#ffe0d9}.press-result.unseen{background:#e9edf3}.recent{margin:0;font-size:12px}#finger-map{border-top:1px solid var(--line);border-bottom:1px solid var(--line);min-height:285px;padding:12px 0}.keyboard{max-width:930px;margin:10px auto 0}.key-row{justify-content:flex-start;gap:5px;margin:5px 0;display:flex}.row-1{padding-left:23px}.row-2{padding-left:69px}.key{color:#15202b;border:1px solid;border-radius:4px;flex-direction:column;justify-content:center;align-items:center;width:88px;height:60px;display:flex}.key b{font:400 19px -apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}.key small{overflow-wrap:anywhere;text-align:center;padding:0 3px;font-size:10px;line-height:1.3}.finger-left-little{background:var(--left-little)}.finger-left-ring{background:var(--left-ring)}.finger-left-middle{background:var(--left-middle)}.finger-left-index{background:var(--left-index)}.finger-right-index{background:var(--right-index)}.finger-right-middle{background:var(--right-middle)}.finger-right-ring{background:var(--right-ring)}.finger-right-little{background:var(--right-little)}.space-key{background:#e2e5e9;width:360px}.next-key{outline-offset:2px;outline:3px solid #172c50}#camera-section{padding-top:16px}.camera-heading{justify-content:space-between;align-items:center;height:24px;margin-bottom:10px;display:flex}#camera-badge{font-size:12px}.camera-layout{grid-template-columns:minmax(0,1fr);align-items:start;gap:22px;display:grid}.view-wrap{aspect-ratio:4/3;background:#20252b;border-radius:4px;width:100%;position:relative;overflow:hidden}video,canvas{width:100%;height:100%;display:block}video{object-fit:fill}canvas{pointer-events:none;position:absolute;inset:0}canvas.calibrating{pointer-events:auto;cursor:crosshair}.camera-empty{color:#f5f5f5;text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:12px;padding:20px;display:flex;position:absolute;inset:0}.camera-empty span{font-size:13px;line-height:1.6}aside{font-size:12px}#camera-controls{align-items:center;gap:8px;display:flex}#camera-controls select{flex:180px;width:120px;min-width:120px}#camera-controls button{white-space:nowrap}#setup-message{height:36px;overflow:auto}.mapping-heading{justify-content:space-between;gap:8px;display:flex}.mapping-heading span{white-space:nowrap}.cal-keys{flex-wrap:wrap;gap:4px;margin:8px 0;display:flex}.cal-key{min-width:32px;font:11px var(--mono);padding:5px}.cal-key.mapped{background:#d4ecd9}.cal-key.selected{color:#fff;outline-offset:1px;background:#173d7b;outline:2px solid #173d7b}#cal-message{height:54px;overflow:auto}#diagnostic-result{height:36px;margin:8px 0;overflow:auto}.setup-actions{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.setup-actions #fix-setup{margin-left:auto}.camera-options,#camera-controls{flex-wrap:wrap}.primary{color:#fff;background:#204e91;min-width:80px}.primary:hover:not(:disabled){background:#163967}#ready-message{flex:1}#tracking-readout{color:#505b68}.results{height:300px;overflow:auto}.results .lede{font-size:13px}.result-grid{grid-template-columns:repeat(4,1fr);gap:16px;margin:18px 0;display:grid}.result-grid>div{flex-direction:column;display:flex}.result-grid strong{font:30px var(--mono)}.result-grid span,.result-note,.result-limit,.results details{font-size:12px}.result-actions{margin-top:12px}footer{border-top:1px solid var(--line);color:#505b68;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:15px;margin-top:20px;padding:16px 0;font-size:12px;display:flex}#build-version{white-space:nowrap}#build-version a{color:inherit}.storage-alert{background:#fff0cc;padding:12px;font-size:13px}@media (width<=760px){.topbar,main{width:calc(100% - 24px)}#content{height:370px}.camera-layout{grid-template-columns:1fr}.key{width:9%;min-width:0}.key-row{gap:3px}.key small{text-align:center;font-size:8px}.key b{font-size:16px}.space-key{width:50%}.target-word{min-width:85px;font-size:20px}.word-entry input{font-size:20px}.word-entry input::placeholder{font-size:12px}.practice-top,.practice-metrics{gap:8px}.practice-top .eyebrow{max-width:130px;font-size:10px}.result-grid{gap:8px}}.key-row:last-child{justify-content:center}@media (width<=760px){.row-1{padding-left:2.3%}.row-2{padding-left:6.9%}}.entry-heading,.word-entry{width:min(560px,100%);margin-left:auto;margin-right:auto}.word-entry{gap:18px}.target-word{text-align:right;flex-shrink:0;width:50%;min-width:0;padding-right:18px}.word-entry input{flex:1}.entry-indicator{display:none}.feedback,.input-message,.recent{max-width:800px;margin-left:auto;margin-right:auto}#camera-section{max-width:720px;margin:auto}#camera-image{transform-origin:50%;position:absolute;top:50%;left:50%}.camera-layout aside{width:100%}.camera-options{justify-content:center;align-items:center;gap:12px;margin-bottom:16px;display:flex}.camera-options select{width:160px}#setup-panel .setup-actions{justify-content:center}@media (width<=760px){.word-entry{gap:12px}.target-word{padding-right:12px}}.feedback{text-align:center;justify-content:center}.input-message,.recent{text-align:center}.fingering-control{flex-wrap:wrap;justify-content:center;align-items:center;gap:10px;min-height:46px;font-size:12px;display:flex}.fingering-control select{width:auto;padding:5px 8px}#policy-status{width:240px}.word-entry:has(#practice) input{display:none}.word-entry #practice{flex:1;min-width:0;padding:7px 8px;font-size:14px}.flow-feedback{align-content:center}#setup-message:empty{display:none}#profile-settings{background:#e4f0e6;border-radius:12px;max-width:900px;margin:10px auto 20px;padding:12px}.profile-toolbar,#profile-editor{flex-wrap:wrap;justify-content:center;align-items:center;gap:8px;display:flex}#profile-editor[hidden]{display:none}#profile-settings label{align-items:center;gap:6px;font-size:12px;display:flex}#profile-settings select,#profile-settings input{max-width:250px}#profile-settings p{text-align:center;width:100%;margin:6px 0;font-size:12px}#import-profile{max-width:180px}.physical-keyboard{width:100%;max-width:900px;margin:auto;position:relative}.physical-position{padding:2px;position:absolute}.physical-position .key{width:100%;min-width:0;height:100%;margin:0;position:relative}.physical-position .key:is([data-key=KeyF],[data-key=KeyJ]):after{content:"";opacity:.45;pointer-events:none;background:currentColor;border-radius:2px;width:18%;max-width:14px;height:2px;position:absolute;bottom:14%;left:50%;transform:translate(-50%)}.physical-position .key small{font-size:clamp(6px,.85vw,11px)}.physical-position .space-key small{position:absolute;bottom:18%}@media (width<=600px){.physical-position .key:is([data-key=KeyF],[data-key=KeyJ])>*{position:relative;top:-6%}.physical-position .key:is([data-key=KeyF],[data-key=KeyJ]) small{padding:0;line-height:1}.physical-position .key:is([data-key=KeyF],[data-key=KeyJ]):after{height:1px;bottom:10%}.physical-position{padding:1px}.physical-position .key{padding:2px}.physical-position .key b{font-size:12px}#profile-settings select{max-width:220px}}@media (width<=440px){.physical-position .key:is([data-key=KeyF],[data-key=KeyJ]) b{font-size:10px;line-height:1}.physical-position .key:is([data-key=KeyF],[data-key=KeyJ]) small{padding:0;font-size:5px;line-height:1}}@media (width<=360px){.physical-position .key:is([data-key=KeyF],[data-key=KeyJ]) b{font-size:8px}.physical-position .key:is([data-key=KeyF],[data-key=KeyJ]) small{font-size:4px}}@media (width<=760px){.camera-layout{grid-template-columns:minmax(0,1fr)}.camera-layout aside{min-width:0}#camera-controls{flex-wrap:wrap}}#sample-panel{border:1px solid #6b7a72;border-radius:12px;max-width:850px;margin:1.5rem auto;padding:1rem}#sample-panel.is-recording{border:2px solid #d57c58}.sample-fields,.sample-actions{flex-wrap:wrap;gap:12px;margin:12px 0;display:flex}.sample-fields label{flex:1;gap:6px;min-width:150px;display:grid}.hardware-block .key.context-key{color:#555c59;background:#e7e8e5}.hardware-block .key b{justify-content:center;align-items:center;gap:.25em;font-size:clamp(11px,1.5vw,20px);display:flex;position:relative}.hardware-block .key b:has(.legend-1:not(:empty)){flex-direction:column-reverse;gap:0;font-size:clamp(9px,1.2vw,16px);line-height:1.05}.hardware-block .legend-2{font-size:.65em;position:absolute;bottom:0;right:-.8em}.hardware-block .key.iso-return{clip-path:polygon(0 0, 100% 0, 100% 100%, var(--notch) 100%, var(--notch) 50%, 0 50%)}@media (width<=600px){.hardware-block .key{border-radius:3px}.hardware-block .key small{display:none}.hardware-block .space-key small{font-size:8px;display:block;bottom:25%}.hardware-block .key b{font-size:10px;line-height:1}.hardware-block .key b:has(.legend-1:not(:empty)){font-size:8px}.hardware-block .context-key b{font-size:8px}#finger-map:has(.hardware-block){min-height:0}}.hardware-block .key small{white-space:nowrap;padding:0;font-size:clamp(5px,.55vw,8px);line-height:1.2}.hardware-block .key:has(small[data-multiple]) small{font-size:clamp(4px,.42vw,6px)}.hardware-block .key:is([data-key=KeyF],[data-key=KeyJ]):after{bottom:7%}@media (width>=601px){.hardware-block .key:is([data-key=KeyF],[data-key=KeyJ])>*{transform:translateY(-3px)}}@media (width<=600px){.hardware-block .space-key small{font-size:8px}}.hardware-block .legend-1:empty{display:none}#debugging{max-width:850px;margin:1.5rem auto}#debugging>summary{cursor:pointer;color:var(--muted)}.brand{letter-spacing:-.035em;white-space:nowrap;line-height:1.25}.brand span[style]{text-decoration:underline;-webkit-text-decoration-color:var(--brand-colour);text-decoration-color:var(--brand-colour);text-underline-offset:.18em;text-decoration-thickness:.085em}.brand-gap{width:.32em;display:inline-block}
