:root{color-scheme:light;--bg: #f4f4f5;--surface: #ffffff;--text: #18181b;--muted: #71717a;--border: #e4e4e7;--accent: #b45309;--accent-hover: #92400e;--danger: #b91c1c;--nl-string-start: #15803d;--nl-string-end: #b91c1c;--rebuild-green-bg: rgba(22, 163, 74, .12);--rebuild-green-bg-hover: rgba(22, 163, 74, .2);--rebuild-green-border: rgba(22, 163, 74, .32);--rebuild-green-text: #166534;--radius: 10px;--font: "Segoe UI", system-ui, -apple-system, sans-serif;--iter-display-font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", "Segoe UI Variable", Roboto, "Helvetica Neue", Helvetica, Arial, "Noto Sans", sans-serif}.iteration-display-window{font-family:var(--iter-display-font)}.note-locator-iteration.iteration-display-window{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}[data-theme=dark]{color-scheme:dark;--bg: #070709;--surface: #121216;--text: #f3f4f6;--muted: #b6bac4;--border: #26262b;--accent: #f59e0b;--accent-hover: #fbbf24;--danger: #f87171;--nl-string-start: #4ade80;--nl-string-end: #f87171;--rebuild-green-bg: rgba(34, 197, 94, .1);--rebuild-green-bg-hover: rgba(34, 197, 94, .18);--rebuild-green-border: rgba(74, 222, 128, .28);--rebuild-green-text: #86efac}*,*:before,*:after{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.5}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}button,input,select{font:inherit}button{cursor:pointer}.btn{border:1px solid var(--border);background:var(--surface);color:var(--text);padding:.5rem .85rem;border-radius:var(--radius);font-weight:600}.btn:hover{border-color:var(--muted)}.btn-primary{background:var(--accent);border-color:var(--accent);color:#0c0c0e}[data-theme=dark] .btn-primary{color:#0c0c0e}.btn-primary:hover{background:var(--accent-hover);border-color:var(--accent-hover)}.btn-ghost{background:transparent}.settings-page-title{margin:0 0 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.tuner-note{color:var(--tune-close)}.tuner-pitch--off .tuner-note{color:var(--tune-off)}.tuner-status{margin:0;align-self:center;min-width:9rem;padding:.35rem .9rem;border-radius:999px;text-align:center;font-size:1.15rem;font-weight:800;letter-spacing:.03em;text-transform:uppercase}.tuner-status--idle{color:var(--muted);background:transparent;font-weight:600;text-transform:none;letter-spacing:0}.tuner-status--in{color:#fff;background:var(--tune-in-fill)}.tuner-status--close{color:#1c1917;background:var(--tune-close-fill)}.tuner-status--off{color:#fff;background:var(--tune-off-fill)}.tuner-sheet-panel:before{content:"";display:block;height:.55rem;border-radius:999px;background:var(--border)}.tuner-pitch--in.tuner-sheet-panel:before{background:var(--tune-in-fill)}.tuner-pitch--close.tuner-sheet-panel:before{background:var(--tune-close-fill)}.tuner-pitch--off.tuner-sheet-panel:before{background:var(--tune-off-fill)}.tuner-string-btn--target{outline:2px solid 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0;min-width:2.75rem;max-width:none;border-width:0}.fretboard-diagram{display:block;width:100%;max-width:720px;height:auto}@media (pointer: coarse) and (max-width: 960px),(pointer: coarse) and (orientation: landscape) and (max-height: 900px){html,body,#root{position:fixed;top:0;right:0;bottom:0;left:0;width:100%;height:100%;overflow:hidden;overscroll-behavior:none}html[data-pitch-hud=on] .landing-main-pane{padding-bottom:calc(5.75rem + env(safe-area-inset-bottom,0px))!important}.iteration-display-window{min-height:0!important;max-height:42dvh;overflow:hidden;overscroll-behavior:none;touch-action:manipulation}.phone-display-frame{overflow:hidden;min-height:0;display:flex;align-items:center;justify-content:center}.phone-display-frame .iteration-display-window{height:auto!important;max-height:none!important;min-height:0!important;overflow:visible!important;margin-bottom:0!important}.focus-tap-target{flex:1 1 auto;min-height:0}.focus-controls-scroll{flex:0 0 auto;overflow:visible}.landing-main-pane{overscroll-behavior:none}.practice-toolbar{flex-wrap:wrap!important}.practice-toolbar input,.practice-toolbar select,.practice-toolbar button,.rhythm-width-measure{min-height:44px;font-size:16px!important}.practice-toolbar-group{display:flex;flex-wrap:wrap;align-items:center;gap:.45rem .65rem;flex:1 1 100%;min-width:0;max-width:100%}.practice-toolbar-bpm{margin-left:0!important}.module-settings-controls label{flex-wrap:wrap;width:100%;max-width:100%}.module-settings-controls select,.module-settings-controls input:not([type=checkbox]):not([type=radio]){min-width:0!important;width:100%!important;max-width:100%!important;flex:1 1 100%}}.practice-settings-row{flex:1 1 100%;width:100%;display:flex;justify-content:flex-end;align-items:center;gap:.75rem}.practice-settings-actions{display:flex;align-items:center;gap:.45rem}.practice-settings-tuner,.practice-settings-logo{display:none}html[data-phone-layout=on],html[data-phone-layout=on] body,html[data-phone-layout=on] #root{position:fixed;top:0;right:0;bottom:0;left:0;width:100%;height:100%;height:100svh;max-height:100svh;overflow:clip;overscroll-behavior:none;touch-action:none}html[data-phone-layout=on] button,html[data-phone-layout=on] a,html[data-phone-layout=on] input,html[data-phone-layout=on] select,html[data-phone-layout=on] textarea,html[data-phone-layout=on] label{touch-action:manipulation}html[data-phone-layout=on] input:not([type=checkbox]):not([type=radio]):not([type=file]),html[data-phone-layout=on] select,html[data-phone-layout=on] textarea{font-size:16px!important}html[data-phone-layout=on] .focus-logo-band,html[data-phone-orientation=landscape] .landing-collapsed-logo{display:none!important}html[data-phone-layout=on] .module-title-row h1{font-size:1.35rem;line-height:1.15}html[data-phone-layout=on] .practice-settings-row{justify-content:space-between}html[data-phone-layout=on] .practice-settings-tuner{display:inline-flex;align-items:center;min-height:44px}html[data-phone-layout=on] .practice-settings-logo{display:block;height:44px;width:auto;max-width:min(42vw,9.5rem);object-fit:contain;pointer-events:none}html[data-phone-layout=on] .landing-root{position:absolute;top:0;right:0;bottom:0;left:0;height:auto;min-height:0;overflow:clip;display:flex;flex-direction:column;box-sizing:border-box}html[data-phone-layout=on] .landing-shell{position:relative;flex:1 1 0;height:100%!important;min-height:0!important;max-height:100%!important;overflow:clip}html[data-phone-layout=on] .landing-shell>section{position:relative;flex:1 1 0!important;min-height:0!important;min-width:0!important;height:100%;max-height:100%;overflow:clip}html[data-phone-layout=on] .landing-main-pane{position:relative!important;flex:1 1 0!important;min-width:0;min-height:0!important;height:100%!important;max-height:100%!important;align-self:stretch;display:flex!important;flex-direction:column;overflow:clip!important;overscroll-behavior:none}html[data-phone-layout=on] .left-menu-collapsed{position:relative;z-index:2}html[data-phone-layout=on] .landing-main-pane:has(.practice-module-frame){display:flex!important;flex-direction:column;overflow:clip!important}html[data-phone-layout=on] .landing-main-pane:has(.practice-module-frame)>div:not(.landing-collapsed-logo),html[data-phone-layout=on] .practice-module-frame,html[data-phone-layout=on] .practice-grid,html[data-phone-layout=on] .practice-grid>div{flex:1 1 0;min-height:0;min-width:0;display:flex!important;flex-direction:column;overflow:clip}html[data-phone-layout=on] .phone-display-frame{flex:1 1 0!important;min-height:0!important;max-height:none!important;display:flex!important;align-items:center;justify-content:center;box-sizing:border-box;background:var(--surface);border:1px solid var(--border);border-radius:calc(var(--radius) + 4px);overflow:hidden;container-type:size;container-name:display-frame}html[data-phone-layout=on] .phone-display-frame .iteration-display-window{width:100%;height:auto!important;max-height:none!important;min-height:0!important;margin:0!important;padding:.85rem 1rem!important;gap:.45rem!important;border:none;background:transparent;box-shadow:none;box-sizing:border-box}html[data-phone-layout=on] .phone-display-frame .iteration-display-window>*:not(.display-overlay-label):not(.setup-intro-overlay):not(.note-locator-fret-overlay){width:100%;max-width:100%;min-width:0;box-sizing:border-box}html[data-phone-orientation=portrait] .phone-display-frame:has(.portrait-drill-window)>div,html[data-phone-orientation=portrait] .phone-display-frame:has(.portrait-drill-window)>div>div{height:100%;width:100%}html[data-phone-orientation=portrait] .phone-display-frame .iteration-display-window.portrait-drill-window{height:100%!important;max-height:none!important;min-height:0!important;display:grid!important;grid-template-columns:minmax(0,1fr);grid-template-rows:minmax(0,1fr) auto minmax(0,1fr);align-items:stretch;justify-items:stretch;padding:.35rem .65rem!important;gap:.2rem!important}html[data-phone-orientation=portrait] .portrait-drill-regions{display:contents}html[data-phone-orientation=portrait] .portrait-drill-above{align-self:end;justify-self:center;text-align:center}html[data-phone-orientation=portrait] .portrait-drill-main{align-self:center;justify-self:center;width:100%;min-width:0}html[data-phone-orientation=portrait] .portrait-drill-below{align-self:stretch;justify-self:stretch;width:100%;height:100%;min-width:0;min-height:0;overflow:hidden;display:flex;flex-direction:column;align-items:center;gap:.35rem}html[data-phone-orientation=portrait] .portrait-drill-below .note-locator-fret-hint,html[data-phone-orientation=portrait] .portrait-drill-below .display-overlay-label{position:static;width:100%;max-width:100%;margin:0}html[data-phone-orientation=portrait] .portrait-drill-below .note-locator-fret-hint{flex:0 0 auto;width:100%;max-width:100%;min-height:0;align-self:stretch;display:block}html[data-phone-orientation=portrait] .portrait-drill-below .note-locator-fret-hint svg{width:100%;max-width:100%;height:auto;max-height:none}.display-overlay-label{width:max-content;max-width:calc(100% - 1.5rem)}.setup-intro-overlay{width:100%;max-width:none;height:100%}.note-locator-fret-overlay{position:absolute;top:0;right:0;bottom:0;left:0;z-index:4;display:flex;align-items:center;justify-content:center;box-sizing:border-box;margin:0;padding:.7rem .65rem;background:var(--surface);color:var(--text);pointer-events:none}.note-locator-fret-overlay .note-locator-fret-hint{width:100%;height:100%;min-width:0;min-height:0;display:flex;align-items:center;justify-content:center}.note-locator-fret-overlay .note-locator-fret-hint svg{width:100%;height:100%;max-width:100%;max-height:100%}.setup-summary-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;align-items:center;gap:.45rem;width:100%;max-width:22rem}.setup-summary-list li{margin:0;text-align:center}.setup-summary-list--settings{align-items:flex-start;gap:.2rem;max-width:none;margin-bottom:.75rem;font-size:.9375rem;font-weight:550;color:var(--muted);line-height:1.35}.setup-summary-list--settings li{text-align:left}.setup-summary-list--settings .music-accidental{font-weight:400;font-size:1.45em;letter-spacing:.14em;vertical-align:-.08em}.setup-summary-note-set{font-size:2.4em;font-weight:400;letter-spacing:.04em;line-height:1.15;color:var(--text)}html[data-phone-layout=on] .practice-controls-row,html[data-phone-layout=on] .practice-settings-row{flex:0 0 auto}html[data-phone-layout=on] .phone-module-slot{position:relative;flex:1 1 0;min-height:0;min-width:0;height:100%;width:100%;overflow:clip}html[data-phone-layout=on] .phone-module-viewport{position:absolute;top:0;right:0;bottom:0;left:0;min-height:0;min-width:0;overflow:clip;display:flex;flex-direction:column}html[data-phone-layout=on] .phone-module-viewport:not(:has(.practice-module-frame)){display:block;overflow-x:hidden;overflow-y:auto;overscroll-behavior:none;-webkit-overflow-scrolling:touch;touch-action:pan-x pan-y}html[data-phone-layout=on] .phone-module-viewport:not(:has(.practice-module-frame))>*{box-sizing:border-box;min-height:100%}html[data-phone-layout=on] .fretboard-module{display:flex;flex-direction:column;min-height:100%}html[data-phone-layout=on] .fretboard-diagram-slot{flex:1 1 auto;min-height:0}html[data-phone-layout=on] .fretboard-diagram{display:block;width:100%;max-width:100%;height:auto;max-height:40dvh}html[data-phone-orientation=landscape] .fretboard-diagram{max-height:22dvh}html[data-phone-orientation=landscape] .practice-module-frame{padding-bottom:.25rem!important}html[data-phone-orientation=landscape] .landing-main-pane:has(.practice-module-frame){display:flex!important;flex-direction:column;overflow:clip!important}html[data-phone-orientation=landscape] .landing-main-pane:has(.practice-module-frame)>div:not(.landing-collapsed-logo),html[data-phone-orientation=landscape] .practice-module-frame,html[data-phone-orientation=landscape] .practice-grid,html[data-phone-orientation=landscape] .practice-grid>div{flex:1 1 0;min-height:0;display:flex!important;flex-direction:column;overflow:clip}html[data-phone-orientation=landscape] .phone-display-frame{flex:1 1 0!important;min-height:0!important;max-height:none!important}html[data-phone-orientation=landscape] .phone-display-frame>div,html[data-phone-orientation=landscape] .phone-display-frame>div>div{height:100%;min-height:0}html[data-phone-orientation=landscape] .phone-display-frame .iteration-display-window{height:100%!important;max-height:100%!important;overflow:hidden!important}html[data-phone-orientation=landscape] .phone-display-frame .iteration-display-window.landscape-drill-window{display:grid!important;grid-template-rows:minmax(0,1fr) auto minmax(0,1fr);align-items:stretch;justify-items:center;justify-content:initial!important;padding:.3rem .7rem!important;gap:0!important}html[data-phone-orientation=landscape] .landscape-drill-regions{display:contents}html[data-phone-orientation=landscape] .landscape-drill-above{min-height:0;width:100%;overflow:hidden;display:flex;flex-direction:column;justify-content:flex-end;align-self:stretch}html[data-phone-orientation=landscape] .landscape-drill-main{justify-self:center;align-self:center;width:100%;min-width:0}html[data-phone-orientation=landscape] .landscape-drill-below{min-height:0}html[data-phone-orientation=landscape] .landscape-drill-above .note-locator-fret-hint{position:relative!important;flex:1 1 auto;min-height:0;width:100%;margin:0;display:flex;align-items:flex-end}html[data-phone-orientation=landscape] .landscape-drill-above .display-overlay-label{position:static;flex:0 0 auto;width:100%;margin:0}html[data-phone-orientation=landscape] .practice-controls-row,html[data-phone-orientation=landscape] .practice-settings-row{flex:0 0 auto}html[data-phone-orientation=landscape] .practice-controls-row{gap:.35rem!important}html[data-phone-orientation=landscape] .practice-module-frame>div:first-child{margin-bottom:.2rem!important}html[data-phone-orientation=landscape] .practice-module-frame h1{font-size:1.25rem;line-height:1.1}html[data-phone-orientation=landscape] .practice-controls-row>.card{padding:.4rem .55rem!important}html[data-phone-orientation=landscape] .practice-toolbar{flex-wrap:wrap!important}html[data-phone-orientation=landscape] .practice-toolbar-group{display:flex;flex-wrap:wrap;align-items:center;gap:.45rem .65rem;flex:1 1 auto;width:auto;min-width:0;max-width:100%}html[data-phone-orientation=landscape] .practice-toolbar-group--metronome{flex-wrap:nowrap;gap:.35rem}@media (pointer: coarse){.btn,.practice-toolbar button{min-height:44px}}