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#d3e2cc;border-radius:9px;display:flex;gap:12px;justify-content:space-between;padding:16px;margin:18px 0 0;align-items:center}.practice-panel .eyebrow{font-size:9px}.practice-panel p{font-size:12px;line-height:1.5;margin:7px 0 0;max-width:430px}.practice-actions{display:flex;align-items:center;justify-content:flex-end;gap:7px;flex-wrap:wrap;max-width:220px}.practice-actions>span{font-size:11px;font-weight:700;width:100%;text-align:right}.practice-actions .quiet-button{font-size:10px;padding:6px 9px;min-height:32px}.note-pads{display:grid;grid-template-columns:repeat(auto-fit,minmax(64px,1fr));gap:7px;min-height:173px}.note-pad{min-height:68px;background:#fffef4;border-radius:6px;color:#294a40;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:7px;border:2px solid transparent;touch-action:none}.note-pad.black{background:#375950;color:#f2f6e9}.note-pad.is-active{background:#b5d9c1;color:#183d2f}.note-pad.is-target{border:2px dashed #b6d06c}.page-footer{display:flex;justify-content:space-between;gap:20px;margin-top:23px;color:#7b8575;font-size:10px;line-height:1.6}.page-footer strong{font-weight:550;color:#586b50}.scope-note{margin-top:13px;font-size:10px;line-height:1.65;color:#7b8575;max-width:880px}.scope-note summary{cursor:pointer}.scope-note p{margin:7px 0}.no-script{padding:16px;color:#a04032}body.classroom .intro,body.classroom .lesson-rail,body.classroom .page-footer,body.classroom .scope-note,body.classroom .breadcrumb{display:none}body.classroom .workspace{grid-template-columns:1fr}body.classroom .shell{max-width:1300px;padding-top:22px}body.classroom .piano{height:245px}body.classroom .key-primary{font-size:17px}body.classroom .black .key-primary{font-size:13px}body.classroom .key-secondary{font-size:12px}body.classroom .lesson-heading h2{font-size:34px}body.classroom .studio-status{font-size:13px}body.classroom .phase-description{font-size:16px}
@media(min-width:1500px){.studio{padding:26px 34px 19px}.piano{height:195px}.lesson-heading{padding-top:28px}.intro{margin-bottom:40px}.shell{padding-top:40px}}
@media(max-width:1100px){.workspace{grid-template-columns:204px minmax(0,1fr);gap:18px}.studio{padding:20px}.topbar{gap:30px}.shell{padding:26px 20px 20px}.local-badge{display:none}.transport{gap:7px}.tempo-control{width:105px;min-width:90px}.settings-row{gap:9px}.settings-row>label{min-width:96px}.key-primary{font-size:10px}.black .key-primary{font-size:8px}.keyboard-help{max-width:220px;text-align:right;line-height:1.7}.lesson-meta{font-size:8px}.mode-switch button{padding:9px 20px}}
@media(max-width:850px){.workspace{grid-template-columns:1fr}.lesson-rail{display:grid;grid-template-columns:1fr 2fr;gap:8px 20px;padding:0}.lesson-rail>.rail-label:first-child{grid-column:1;margin-bottom:0}.lesson-rail>.field-label{grid-column:1;margin:0}.lesson-rail>select{grid-column:1}.lesson-rail>.lesson-summary,.rail-divider,.teacher-note,.lesson-rail>p.rail-label{display:none}.teaching-path{grid-column:2;grid-row:1/4;display:grid;grid-template-columns:1fr 1fr;gap:5px}.path-step{min-height:45px;padding:7px;gap:7px}.path-step small{display:none}.path-step strong{font-size:11px}.step-number{min-width:23px;height:23px;font-size:10px}.intro{margin-bottom:23px}.studio{margin-top:5px}.topbar{height:70px;padding:0 22px}.breadcrumb{font-size:11px}.settings-row .volume-control{max-width:none}.note-pad{min-height:60px}.piano{height:190px}}
@media(max-width:600px){.topbar{padding:0 16px;height:68px}.brand{font-size:19px;gap:9px}.brand img{width:34px;height:34px}.breadcrumb{display:none}.topbar>.quiet-button{font-size:10px;padding:7px 10px;min-height:38px}.shell{padding:23px 12px 18px}.intro{padding:0 4px;display:block;margin-bottom:25px}.intro .eyebrow{font-size:8px;letter-spacing:1.45px;margin-bottom:10px}h1{font-size:29px;max-width:310px;letter-spacing:-.8px}h1 em{white-space:nowrap}.intro-copy{font-size:11px;max-width:310px;line-height:1.7}.lesson-rail{grid-template-columns:1fr;gap:5px;padding:0 4px}.lesson-rail>.rail-label:first-child{font-size:9px}.lesson-rail>.field-label{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(100%)}.lesson-rail>select{margin:6px 0 7px;min-height:43px}.teaching-path{display:flex;flex-direction:row;grid-column:1;grid-row:auto;gap:5px;justify-content:space-between}.path-step{flex:1;padding:8px 3px;gap:5px;min-height:51px;flex-direction:column}.path-step strong{font-size:9px;white-space:nowrap}.step-number{width:23px;height:23px}.studio{padding:15px 12px 12px;border-radius:13px}.studio-top{padding-bottom:14px}.mode-switch button{padding:8px 18px;min-height:36px}.lesson-meta{font-size:7px;letter-spacing:.5px}.lesson-meta span{margin:0 3px}.lesson-heading{padding:20px 2px 16px;gap:10px}.lesson-heading h2{font-size:24px}.lesson-heading .eyebrow{font-size:8px}.lesson-heading p:not(.eyebrow){font-size:11px;margin-top:7px}.note-orbit{min-width:58px;height:58px}.note-orbit>span{font-size:22px}.note-orbit small{font-size:8px}.sequence{gap:6px;padding-bottom:17px}.sequence-step{min-width:49px;padding:10px 5px 8px}.sequence-step strong{font-size:20px}.sequence-step .step-count{font-size:8px;margin-bottom:5px}.sequence-step small{font-size:9px}.sequence-step.target{padding:9px 4px 7px}.transport{display:grid;grid-template-columns:1fr auto auto;gap:8px;padding-bottom:17px}.primary-button{justify-content:center;padding:10px 12px;font-size:11px}.stop-button{font-size:11px;padding:10px}.transport .quiet-button{font-size:10px;padding:8px}.loop-control{grid-column:1;font-size:11px;min-height:32px}.tempo-control{grid-column:2/4;width:100%;min-width:0}.instrument{padding-top:17px}.instrument-top{gap:8px}.instrument-top p{font-size:9px;max-width:190px;line-height:1.6}.small-button{font-size:9px;padding:7px;min-height:38px}.keyboard-frame{padding:12px 6px 7px;border-radius:8px}.piano{height:180px}.key-primary{font-size:12px}.key-secondary{font-size:10px}.black .key-primary{font-size:9px}.black .key-secondary{font-size:8px}.piano-key.white{padding-bottom:13px}.keyboard-footer{margin:9px 0 16px}.keyboard-help{font-size:0;max-width:150px}.keyboard-help kbd{display:none}.mobile-help{display:inline;font-size:10px}.octave-control button{width:38px;height:38px}.settings-row{display:grid;grid-template-columns:1fr 1fr;gap:13px 15px}.settings-row>label{font-size:10px}.settings-row select{min-height:41px;font-size:12px}.settings-row .volume-control{max-width:none;width:100%;min-width:0}.sound-button{margin-left:0;justify-content:center;min-height:40px;font-size:11px}.studio-status{font-size:10px;margin-top:12px;min-height:28px}.practice-panel{display:block;padding:12px}.practice-panel p{font-size:11px}.practice-actions{max-width:none;justify-content:flex-start;margin-top:10px}.practice-actions>span{width:auto;text-align:left;margin-right:auto}.practice-actions .quiet-button{min-height:40px}.page-footer{display:block;padding:0 4px;font-size:9px;margin-top:20px}.page-footer span{display:block;margin-bottom:6px}.scope-note{padding:0 4px;font-size:9px}.note-pads{grid-template-columns:repeat(4,1fr)}body.classroom .shell{padding:12px 8px}body.classroom .piano{height:200px}body.classroom .lesson-heading h2{font-size:25px}body.classroom .key-primary{font-size:13px}body.classroom .black .key-primary{font-size:9px}body.classroom .key-secondary{font-size:10px}body.classroom .studio-status{font-size:11px}}
@media(min-width:851px) and (max-height:850px){.topbar{height:64px}.shell{padding-top:20px}.intro{margin-bottom:20px}.intro .eyebrow{margin-bottom:7px;font-size:9px}h1{font-size:32px}.intro-copy{font-size:12px;margin-top:7px}.studio{padding:17px 23px 13px}.studio-top{padding-bottom:12px}.lesson-heading{padding:16px 0 14px}.lesson-heading h2{font-size:25px}.lesson-heading p:not(.eyebrow){margin-top:6px;font-size:11px}.note-orbit{min-width:62px;height:62px}.sequence{padding-bottom:15px}.sequence-step{padding:8px 6px}.sequence-step .step-count{margin-bottom:4px}.sequence-step strong{font-size:21px}.sequence-step small{margin-top:4px}.transport{padding-bottom:15px}.instrument{padding-top:15px}.instrument-top{margin-bottom:12px}.piano{height:150px}.settings-row{padding-top:12px}.keyboard-footer{margin-bottom:12px}.teacher-note{margin-top:18px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}@media(forced-colors:active){.piano-key{border:1px solid ButtonText!important}.piano-key.is-target{outline:3px dashed Highlight}.piano-key.is-active,.sequence-step.active{outline:4px solid Highlight}.path-step.selected{outline:2px solid Highlight}}