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var(--rule);background:var(--paper-raised);width:100%;min-height:32px;font-family:var(--font-mono);cursor:pointer;padding:4px 2px;font-size:10px}.is-note{border-color:var(--ink);background:var(--ink);color:var(--paper)}.is-note .step-number{color:var(--accent)}.is-note .step-select{background:var(--ink);color:var(--paper);border-color:#5b5a54}.is-note .step-preview{color:var(--paper);border-color:#5b5a54}.is-rest .step-select{color:var(--ink-mute)}.step-card.is-playing{outline:3px solid var(--accent);outline-offset:2px}.step-card.is-playing:not(.is-note) .step-number{color:var(--accent-text)}.step-card.is-playing:after{content:"";position:absolute}.challenge-workbench{border:2px solid var(--ink);background:var(--paper-raised);padding:clamp(18px,2.6vw,30px) clamp(18px,2.6vw,30px) clamp(18px,2.6vw,30px) clamp(24px,3.2vw,38px);position:relative}.challenge-workbench:before{content:"";background:var(--accent);width:7px;position:absolute;top:0;bottom:0;left:0}.workbench-kicker{font-family:var(--font-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--ink-soft);margin:0 0 6px;font-size:9.5px}.workbench-head h2{letter-spacing:-.045em;margin:0 0 8px;font-size:clamp(1.45rem,2.8vw,2.1rem);line-height:1.1}.workbench-prompt{max-width:80ch;color:var(--ink-soft);word-break:keep-all;margin:0;line-height:1.6}.workbench-data{border:1px solid var(--rule);background:var(--rule);grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;margin:20px 0;display:grid}.workbench-datum{background:var(--paper);min-width:0;padding:12px 14px}.workbench-datum>span{font-family:var(--font-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:3px;font-size:8.5px;display:block}.workbench-datum strong{font-size:13px;line-height:1.45}.workbench-current{font-family:var(--font-mono);font-size:12px!important}.workbench-actions{flex-wrap:wrap;gap:9px;display:flex}.workbench-feedback:empty{display:none}.workbench-feedback{border-top:1px solid var(--rule);gap:11px;margin-top:18px;padding-top:16px;display:grid}.workbench-feedback.is-correct{border-top:3px solid var(--success)}.workbench-feedback.is-wrong{border-top:3px solid var(--accent)}.workbench-feedback p{margin:0;line-height:1.6}.feedback-title{font-weight:700}.compare-list{border:1px solid var(--rule);background:var(--paper);font-family:var(--font-mono);grid-template-columns:auto minmax(0,1fr);gap:3px 16px;margin:0;padding:10px 12px;font-size:10.5px;display:grid}.compare-list dt{color:var(--ink-soft)}.compare-list dd{text-align:right;margin:0;font-weight:700}.explanation{font-size:13px}.takeaway{border-left:3px solid var(--accent);background:var(--accent-soft);padding:11px 13px}.takeaway span{font-family:var(--font-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:2px;font-size:8.5px;display:block}.award-line{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.award-stamp{border:1px solid var(--success);color:var(--success);font-family:var(--font-mono);letter-spacing:.05em;text-transform:uppercase;align-items:center;gap:4px;padding:3px 7px;font-size:9px;font-weight:700;display:inline-flex}.feedback-actions{flex-wrap:wrap;gap:9px;display:flex}.challenge-overview{border-top:2px solid var(--ink);border-bottom:1px solid var(--rule);grid-template-columns:auto minmax(0,1fr);align-items:end;gap:12px 32px;padding:18px 0;display:grid}.progress-count{letter-spacing:-.045em;margin:0;font-size:clamp(1.7rem,3vw,2.5rem);line-height:1;display:block}.progress-track{background:var(--rule);height:8px;position:relative;overflow:hidden}.progress-fill{background:var(--ink);height:100%;transition:width .3s;display:block}.challenge-overview .storage-note{grid-column:1/-1;margin-top:4px}.challenge-list{flex-direction:column;gap:14px;display:flex}.challenge-card{border:1px solid var(--ink);background:var(--paper-raised);padding:clamp(18px,2.4vw,28px)}.challenge-card.is-complete{border-left:6px solid var(--success)}.challenge-card.is-current{border-left:6px solid var(--accent)}.challenge-card-head{grid-template-columns:46px minmax(0,1fr);gap:16px;display:grid}.challenge-number{font-family:var(--font-mono);color:var(--accent-text);font-size:24px;font-weight:700;line-height:1}.challenge-meta{font-family:var(--font-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--ink-soft);flex-wrap:wrap;align-items:center;gap:7px;margin:0 0 5px;font-size:8.5px;display:flex}.tag{border:1px solid var(--rule);font-family:var(--font-mono);letter-spacing:.02em;color:var(--ink-soft);padding:2px 5px;font-size:8.5px}.tag.is-complete{border-color:var(--success);color:var(--success)}.tag.is-current{border-color:var(--accent);color:var(--accent-text)}.challenge-card h2{letter-spacing:-.035em;margin:0 0 6px;font-size:clamp(1.25rem,2.3vw,1.75rem);line-height:1.15}.challenge-prompt{max-width:78ch;color:var(--ink-soft);word-break:keep-all;margin:0;line-height:1.55}.prediction-fieldset{border:0;flex-direction:column;gap:7px;margin:18px 0 0;padding:0;display:flex}.prediction-fieldset legend{margin-bottom:8px;font-size:12px;font-weight:700;line-height:1.5}.prediction-fieldset legend .field-label{margin-bottom:2px}.radio-option{border:1px solid var(--rule);background:var(--paper);cursor:pointer;align-items:center;gap:10px;padding:10px 12px;font-size:12.5px;display:flex}.radio-option:hover{border-color:var(--ink);background:var(--accent-soft)}.radio-option input{width:16px;height:16px;accent-color:var(--ink)}.radio-option:has(input:checked){border-color:var(--ink);box-shadow:inset 0 0 0 2px var(--ink)}.challenge-actions{flex-wrap:wrap;gap:9px;margin-top:16px;display:flex}.prediction-feedback{border-left:3px solid var(--danger);color:var(--danger);margin:11px 0 0;padding-left:10px;font-size:11.5px;line-height:1.55}.prediction-done{border:1px solid var(--rule);background:var(--paper);flex-wrap:wrap;align-items:center;gap:10px;margin-top:18px;padding:13px;display:flex}.prediction-done p{flex:150px;margin:0;font-size:12.5px}.challenge-complete-box{gap:11px;margin-top:18px;display:grid}.last-answer{font-family:var(--font-mono);color:var(--ink-soft);margin:0;font-size:10px}.challenge-loop{margin-top:4px}.loop-list{counter-reset:loop;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:0;padding:0;list-style:none;display:grid}.loop-list li{border-top:1px solid var(--ink);color:var(--ink-soft);padding-top:10px;padding-left:26px;font-size:11.5px;line-height:1.55;position:relative}.loop-list li:before{counter-increment:loop;content:counter(loop);font-family:var(--font-mono);color:var(--accent-text);font-weight:700;position:absolute;top:10px;left:0}.loop-list strong{color:var(--ink)}.empty-state{border:1px dashed var(--ink);background:var(--paper-raised);justify-items:start;gap:10px;padding:28px;display:grid}.empty-state h2{letter-spacing:-.03em;margin:0;font-size:1.4rem}.empty-state p{color:var(--ink-soft);margin:0}.teacher-room{gap:20px}.teacher-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;display:grid}.teacher-panel{flex-direction:column;gap:16px;display:flex}.teacher-panel .panel-title{margin-bottom:0}.switch-row{border-top:1px solid var(--rule);cursor:pointer;justify-content:space-between;align-items:center;gap:20px;padding:13px 0;display:flex}.switch-row>span:first-child{flex-direction:column;gap:2px;font-size:12.5px;display:flex}.switch-row small{color:var(--ink-soft);font-size:10.5px;line-height:1.4}.switch-control{flex:none;width:44px;height:24px;display:inline-flex;position:relative}.switch-control input{z-index:2;opacity:0;cursor:pointer;width:100%;height:100%;margin:0;position:absolute;inset:0}.switch-track{border:1px solid var(--ink);background:var(--paper);width:44px;height:24px;display:block;position:relative}.switch-track:after{content:"";background:var(--ink);width:16px;height:16px;transition:transform .18s;position:absolute;top:3px;left:3px}.switch-control input:checked+.switch-track{background:var(--ink)}.switch-control input:checked+.switch-track:after{background:var(--accent);transform:translate(20px)}.switch-control input:focus-visible+.switch-track{outline:3px solid var(--accent);outline-offset:2px}.switch-note{border-left:3px solid var(--accent);color:var(--ink-soft);align-items:flex-start;gap:9px;padding-left:11px;display:flex}.switch-note>.icon-wrap{color:var(--accent);margin-top:1px}.switch-note p{margin:0;font-size:10.5px;line-height:1.55}.teacher-challenge-list{border-top:1px solid var(--rule);flex-direction:column;display:flex}.teacher-challenge-row{border-bottom:1px solid var(--rule);cursor:pointer;align-items:flex-start;gap:11px;padding:11px 0;display:flex}.teacher-challenge-row input{width:16px;height:16px;accent-color:var(--ink);margin:3px 0 0}.teacher-challenge-info{flex-direction:column;gap:1px;font-size:12px;display:flex}.teacher-challenge-meta{font-family:var(--font-mono);letter-spacing:.05em;color:var(--ink-soft);font-size:8.5px}.teacher-challenge-target{font-family:var(--font-mono);color:var(--ink-mute);font-size:9px}.select-all-row{flex-wrap:wrap;gap:7px;display:flex}.select-all-row .btn{min-height:36px;padding:6px 11px;font-size:11px}.teacher-progress-panel{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:20px;display:flex}.teacher-progress-panel .panel-title{margin-bottom:7px}.teacher-progress-panel .progress-count{margin-bottom:5px;font-size:1.9rem}.teacher-answers{border-top:1px solid var(--rule);flex-direction:column;display:flex}.teacher-answer{border-bottom:1px solid var(--rule)}.teacher-answer summary{cursor:pointer;align-items:center;gap:12px;padding:13px 0;list-style:none;display:flex}.teacher-answer summary::-webkit-details-marker{display:none}.teacher-answer summary:hover{background:var(--accent-soft)}.teacher-answer summary .challenge-number{font-size:14px}.teacher-answer summary strong{flex:auto;font-size:13px}.teacher-answer-body{gap:3px;padding:0 0 18px 36px;display:grid}.teacher-answer-body p{color:var(--ink-soft);margin:0 0 5px;font-size:11.5px;line-height:1.55}.teacher-answer-body .field-label{color:var(--ink);margin-top:8px;font-size:8.5px}.answer-highlight{align-items:center;gap:6px;font-weight:700;display:flex;color:var(--success)!important}.modal{width:100%;max-width:none;height:100%;max-height:none;color:var(--ink);background:0 0;border:0;margin:0;padding:0}.modal[open]{place-items:center;display:grid}.modal::backdrop{background:#111111a3}.modal-panel{border:2px solid var(--ink);background:var(--paper);width:min(570px,100vw - 32px);max-height:calc(100vh - 48px);padding:clamp(20px,3.5vw,32px);overflow-y:auto}.modal-head{justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:10px;display:flex}.modal-kicker{font-family:var(--font-mono);letter-spacing:.15em;text-transform:uppercase;color:var(--accent-text);margin:0 0 4px;font-size:8.5px}.modal-head h2{letter-spacing:-.045em;margin:0;font-size:clamp(1.35rem,3.5vw,1.9rem);line-height:1.1}.modal-close{border-color:#0000;flex:none}.modal-description{max-width:62ch;color:var(--ink-soft);margin:0 0 16px;font-size:13px;line-height:1.6}.modal-content{gap:16px;display:grid}.modal-actions{flex-wrap:wrap;justify-content:flex-end;gap:9px;margin-top:22px;display:flex}.safety-list{gap:9px;margin:0;padding:0;list-style:none;display:grid}.safety-list li{border-left:3px solid var(--rule);background:var(--paper-raised);color:var(--ink-soft);padding:9px 11px;font-size:11.5px;line-height:1.55}.safety-list li:first-child{border-left-color:var(--accent)}.settings-status{border-left:3px solid var(--ink);background:var(--paper-raised);font-family:var(--font-mono);margin:0;padding:8px 10px;font-size:10px}@media (max-width:1180px){.room-grid{grid-template-columns:minmax(0,1fr) minmax(310px,.92fr);gap:18px}.scope-canvas-host{height:200px}.scope-canvas-host.compact{height:155px}}@media (max-width:1100px){.app-shell{display:block}.sidebar{border-right:0;border-bottom:2px solid var(--ink);background:var(--paper);grid-template-columns:minmax(0,1fr);height:auto;padding:8px 16px 0;display:grid;position:sticky;top:0}.sidebar-top{border-bottom:0;flex-direction:row;justify-content:space-between;align-items:center;gap:12px;padding-bottom:8px}.brand-mark{flex-basis:36px;width:36px;height:36px}.brand-mark svg{width:24px;height:24px}.brand-text strong{font-size:18px}.brand-text span{font-size:8px}.sidebar-utility{flex:none}.audio-status{flex:none;padding:0 10px}.room-nav{scrollbar-width:none;flex-direction:row;flex:none;gap:0;margin-top:0;overflow:auto hidden}.room-nav::-webkit-scrollbar{display:none}.nav-item{border-top:0;border-right:1px solid var(--rule);border-bottom:2px solid #0000;flex:none;grid-template-columns:auto auto auto;gap:6px;padding:10px 12px}.nav-item:last-child{border-bottom:2px solid #0000;border-right:0}.nav-item.is-active{border-bottom-color:var(--accent)}.nav-icon{display:none}.nav-label{font-size:12px}.sidebar-foot{display:none}.app-main{padding:28px 22px 22px}.scope-column{position:static}}@media (max-width:900px){.room-grid{grid-template-columns:minmax(0,1fr)}.reading-panel .reading-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.scope-stack{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.scope-canvas-host,.scope-canvas-host.compact{height:165px}.teacher-grid{grid-template-columns:minmax(0,1fr)}.challenge-overview{grid-template-columns:minmax(0,1fr);align-items:start;gap:8px}.progress-track{width:min(100%,420px)}}@media (max-width:760px){body{background-size:24px 24px}.sidebar{padding-left:12px;padding-right:12px}.brand-mark{flex-basis:32px;width:32px;height:32px}.brand-text strong{font-size:16px}.brand-text span,.audio-label{display:none}.audio-status{width:44px;min-width:44px;padding:0}.audio-status:before{display:none}.settings-btn{width:40px;min-height:40px}.nav-item{padding:9px 10px}.nav-number{display:none}.app-main{padding:20px 14px 18px}.room-intro{margin-bottom:22px;padding-top:12px}.room-intro h1{letter-spacing:-.05em;max-width:18ch;margin-top:12px;font-size:clamp(1.85rem,8.5vw,2.7rem)}.room-lede{font-size:13.5px}.panel{padding:16px}.panel-title{margin-bottom:16px}.waveform-option{grid-template-columns:42px minmax(0,1fr);min-height:76px;padding:10px}.waveform-icon svg{width:36px;height:36px}.waveform-description{font-size:9.5px}.reading-panel .reading-grid{grid-template-columns:minmax(0,1fr);gap:14px}.scope-stack{grid-template-columns:minmax(0,1fr)}.scope-canvas-host{height:150px}.scope-canvas-host.compact{height:118px}.harmonic-row{grid-template-columns:62px minmax(0,1fr);gap:9px}.harmonic-multiple span{font-size:18px}.preset-row{grid-template-columns:repeat(2,minmax(0,1fr))}.chord-selectors{grid-template-columns:minmax(0,1fr);gap:12px}.note-chip{flex:calc(50% - 7px);min-width:0}.piano{height:164px;min-width:calc(var(--white-count) * 38px)}.sequencer-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.step-card{padding:6px 5px}.transport{bottom:calc(env(safe-area-inset-bottom,0px) + 8px);z-index:5;background:var(--paper-raised);flex-wrap:wrap;padding:10px 0;position:sticky}.transport-play{flex:130px}.transport-secondary{flex:200px}.transport-secondary .btn{flex:1 1 0;padding-left:9px;padding-right:9px;font-size:11px}.workbench-data{grid-template-columns:minmax(0,1fr)}.workbench-actions .btn,.feedback-actions .btn{flex:auto}.challenge-card-head{grid-template-columns:34px minmax(0,1fr);gap:10px}.challenge-number{font-size:18px}.loop-list{grid-template-columns:minmax(0,1fr);gap:10px}.teacher-progress-panel{align-items:flex-start}.teacher-answer-body{padding-left:0}.modal-panel{max-height:calc(100vh - 24px);padding:18px}.app-footer{margin-top:44px}}@media (max-width:420px){.brand-text strong{font-size:15px}.nav-item{padding-left:8px;padding-right:8px}.nav-label{font-size:11.5px}.waveform-grid{grid-template-columns:minmax(0,1fr)}.waveform-option{grid-template-columns:56px minmax(0,1fr)}.slider-row{gap:8px}.number-input{width:56px}.preset-row{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.step-select{font-size:9px}.step-preview{width:22px;height:22px;min-height:22px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.001ms!important;animation-duration:.001ms!important;animation-iteration-count:1!important}.btn-pulse{box-shadow:none!important;animation:none!important}}.reduce-motion *,.reduce-motion :before,.reduce-motion :after{scroll-behavior:auto!important;transition-duration:.001ms!important;animation-duration:.001ms!important;animation-iteration-count:1!important}.reduce-motion .btn-pulse{box-shadow:none!important;animation:none!important}
/*$vite$:1*/