@font-face{font-family:Archivo Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/archivo-vietnamese-wght-normal-XAtsl5Q_.woff2)format("woff2-variations");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Archivo Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/archivo-latin-ext-wght-normal-C4zznr8T.woff2)format("woff2-variations");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Archivo Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/archivo-latin-wght-normal-E0tuGl4L.woff2)format("woff2-variations");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}:root{color:#16141c;font-synthesis:none;text-rendering:optimizelegibility;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;--bottom-nav-space:0px;--page:#f3f0e8;--surface:#e8e4d9;--surface-raised:#fbf9f4;--surface-deep:#dbd6c8;--ink:#16141c;--ink-soft:#2f2c39;--muted:#5d5a68;--muted-strong:#4a4755;--line:#c8c2b3;--line-strong:#a49d8c;--accent:#2f2a9e;--accent-text:#322ca8;--accent-ink:#f6f3ec;--playing-note:#c9342f;--playing-note-ink:#fbf9f4;--alert:#c9342f;--header:#f3f0e8e6;--shadow:0 26px 64px #1e1a301f;--fretboard-start:#2b2733;--fretboard-end:#1a1822;--fretboard-line:#a49d8c;--marker:#f4f1ea;--marker-text:#16141c;--marker-root:#cac3b3;--hairline:color-mix(in srgb, var(--ink) 14%, transparent);--engrave:color-mix(in srgb, var(--ink) 7%, transparent);--engrave-strong:color-mix(in srgb, var(--ink) 20%, transparent);--plate-tint:color-mix(in srgb, var(--accent) 10%, transparent);--unit:8px;--rule:1px solid var(--line);--rule-strong:1px solid var(--line-strong);--label-size:.62rem;--label-tracking:.18em;--figures:ui-monospace, SFMono-Regular, Menlo, monospace;--focus-ring:0 0 0 2px var(--page), 0 0 0 4px var(--accent);--control-min:44px;--class-latin:#964940;--class-funk:#846733;--class-country:#6a7439;--class-reggae:#4e713d;--class-jazz:#3b7265;--class-blues:#496b8b;--class-electronic:#3b6c7d;--class-rock:#475990;--class-metal:#686080;--class-pop:#855190;--class-soul:#924f6b;background:#f3f0e8;font-family:Archivo Variable,Arial Narrow,Arial,sans-serif}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial;color:#efecf4;--page:#131118;--surface:#1a1822;--surface-raised:#23202c;--surface-deep:#2b2836;--ink:#efecf4;--ink-soft:#d5d1de;--muted:#a09bad;--muted-strong:#bdb8c8;--line:#322e3d;--line-strong:#4d4860;--accent:#a99cff;--accent-text:#b3a7ff;--accent-ink:#14121b;--playing-note:#c9342f;--playing-note-ink:#fbf9f4;--alert:#e2685f;--header:#131118e6;--shadow:0 28px 74px #03020857;--fretboard-start:#2a2634;--fretboard-end:#191722;--fretboard-line:#9c96ab;--marker:#eae7f1;--marker-text:#17151d;--marker-root:#bab4c9;--hairline:color-mix(in srgb, var(--ink) 18%, transparent);--engrave:color-mix(in srgb, var(--ink) 9%, transparent);--engrave-strong:color-mix(in srgb, var(--ink) 24%, transparent);--plate-tint:color-mix(in srgb, var(--accent) 14%, transparent);--class-latin:#d0928b;--class-funk:#cbaa72;--class-country:#b0bc76;--class-reggae:#8eba78;--class-jazz:#7dbfaf;--class-blues:#8eafd0;--class-electronic:#80b5c6;--class-rock:#95a4d0;--class-metal:#aca6bf;--class-pop:#c7a1ce;--class-soul:#cd98ae;background:#131118}}*{box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;overflow-x:clip}body{background:var(--page);min-width:320px;min-height:100dvh;color:var(--ink);margin:0;overflow-x:clip}button,select,input{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button,select,[role=tab]{touch-action:manipulation}button{color:inherit}a{color:inherit;text-decoration:none}img,svg{max-width:100%;display:block}::selection{color:var(--accent-ink);background:var(--accent)}:focus-visible{outline:3px solid var(--accent);outline-offset:4px}:where(button,[role=tab],a,select,input,summary):focus-visible{outline-offset:2px;box-shadow:var(--focus-ring);outline:2px solid #0000}@media (forced-colors:active){:focus-visible,:where(button,[role=tab],a,select,input,summary):focus-visible{outline-offset:2px;outline:2px solid highlight}}.label{color:var(--muted);font-size:var(--label-size);letter-spacing:var(--label-tracking);text-transform:uppercase;margin:0;font-weight:500}.button{white-space:nowrap;cursor:pointer;border:1px solid #0000;border-radius:10px;justify-content:center;align-items:center;gap:10px;min-height:48px;padding:0 20px;font-size:.92rem;font-weight:720;line-height:1;transition:transform .18s,background-color .18s,border-color .18s;display:inline-flex}.button svg{width:18px;height:18px}.button:active{transform:translateY(1px)scale(.985)}.brand{align-items:center;gap:11px;display:inline-flex}.brand__mark{width:38px;height:38px;overflow:visible}.brand__plate{fill:none;stroke:var(--line-strong);stroke-width:1px}.brand__strings line{stroke:var(--ink);stroke-width:1px;stroke-linecap:butt}.brand__node{stroke:var(--engrave-strong);stroke-width:1px}.brand__head{fill:var(--accent);stroke:none}.brand__stem{stroke:var(--accent);stroke-width:1.8px;stroke-linecap:butt}.brand__name{letter-spacing:.24em;font-size:.84rem;font-weight:640}.technique-section{padding:clamp(90px,11vw,160px) 0}.section-heading{max-width:720px;margin-bottom:clamp(44px,6vw,76px)}.section-heading--wide{max-width:960px}.section-heading h2,.technique-section h2{letter-spacing:-.038em;margin:0;font-size:clamp(2.5rem,5.2vw,5.2rem);font-weight:420;line-height:.98}.section-heading p{max-width:56ch;color:var(--muted-strong);margin:22px 0 0;font-size:clamp(1rem,1.25vw,1.16rem);line-height:1.6}.hand-viewer{aspect-ratio:16/9;isolation:isolate;background:#16141c;position:relative;overflow:hidden}.hand-viewer__poster,.hand-viewer__canvas{width:100%;height:100%;position:absolute;inset:0}.hand-viewer__poster{object-fit:cover;opacity:.66;filter:saturate(.82)contrast(1.04)}.hand-viewer__canvas{z-index:1;opacity:0;transition:opacity .32s;display:block}.hand-viewer--ready .hand-viewer__canvas{opacity:1}.hand-viewer--ready .hand-viewer__poster{opacity:0}.hand-viewer__status{z-index:2;color:#eae7f1;-webkit-backdrop-filter:blur(12px);background:#16141cdb;border:1px solid #ffffff29;border-radius:10px;justify-content:space-between;align-items:center;gap:18px;min-height:42px;padding:10px 13px;font-size:.72rem;font-weight:680;display:flex;position:absolute;bottom:18px;left:18px;right:18px}.hand-viewer__status strong{color:var(--accent);font-family:ui-monospace,SFMono-Regular,Menlo,monospace}@media (width<=720px){select,input[type=text],input[type=number]{font-size:16px}.technique-section{padding:84px 0}.section-heading{margin-bottom:42px}.section-heading h2,.technique-section h2{font-size:clamp(2.55rem,13vw,4rem)}.hand-viewer__status{min-height:38px;padding:8px 10px;bottom:10px;left:10px;right:10px}}@media (width<=390px){.brand__name{font-size:.8rem}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}:root[data-theme=light]{color:#16141c;--page:#f3f0e8;--surface:#e8e4d9;--surface-raised:#fbf9f4;--surface-deep:#dbd6c8;--ink:#16141c;--ink-soft:#2f2c39;--muted:#5d5a68;--muted-strong:#4a4755;--line:#c8c2b3;--line-strong:#a49d8c;--accent:#2f2a9e;--accent-text:#322ca8;--accent-ink:#f6f3ec;--playing-note:#c9342f;--playing-note-ink:#fbf9f4;--alert:#c9342f;--header:#f3f0e8eb;--shadow:0 24px 58px #1e1a301c;--fretboard-start:#2b2733;--fretboard-end:#1a1822;--fretboard-line:#a49d8c;--fretboard-label:#16141c;--hairline:color-mix(in srgb, var(--ink) 14%, transparent);--engrave:color-mix(in srgb, var(--ink) 7%, transparent);--engrave-strong:color-mix(in srgb, var(--ink) 20%, transparent);--plate-tint:color-mix(in srgb, var(--accent) 10%, transparent);--class-latin:#964940;--class-funk:#846733;--class-country:#6a7439;--class-reggae:#4e713d;--class-jazz:#3b7265;--class-blues:#496b8b;--class-electronic:#3b6c7d;--class-rock:#475990;--class-metal:#686080;--class-pop:#855190;--class-soul:#924f6b;background:#f3f0e8}:root[data-theme=dark]{color:#efecf4;--page:#131118;--surface:#1a1822;--surface-raised:#23202c;--surface-deep:#2b2836;--ink:#efecf4;--ink-soft:#d5d1de;--muted:#a09bad;--muted-strong:#bdb8c8;--line:#322e3d;--line-strong:#4d4860;--accent:#a99cff;--accent-text:#b3a7ff;--accent-ink:#14121b;--playing-note:#c9342f;--playing-note-ink:#fbf9f4;--alert:#e2685f;--header:#131118eb;--shadow:0 26px 68px #03020852;--fretboard-start:#2a2634;--fretboard-end:#191722;--fretboard-line:#9c96ab;--fretboard-label:#14121b;--hairline:color-mix(in srgb, var(--ink) 18%, transparent);--engrave:color-mix(in srgb, var(--ink) 9%, transparent);--engrave-strong:color-mix(in srgb, var(--ink) 24%, transparent);--plate-tint:color-mix(in srgb, var(--accent) 14%, transparent);--class-latin:#d0928b;--class-funk:#cbaa72;--class-country:#b0bc76;--class-reggae:#8eba78;--class-jazz:#7dbfaf;--class-blues:#8eafd0;--class-electronic:#80b5c6;--class-rock:#95a4d0;--class-metal:#aca6bf;--class-pop:#c7a1ce;--class-soul:#cd98ae;background:#131118}body{background:var(--page)}.visually-hidden{clip:rect(0, 0, 0, 0)!important;white-space:nowrap!important;border:0!important;width:1px!important;height:1px!important;padding:0!important;position:absolute!important;overflow:hidden!important}body:has(.control-rail.is-open){overflow:hidden}.workbench-app{background:var(--page);min-height:100dvh}.workspace-loading{grid-template-columns:280px minmax(0,1fr);gap:24px;width:min(1500px,100% - 56px);min-height:calc(100dvh - 64px);margin:0 auto;padding:28px 0;display:grid}.workspace-loading__rail,.workspace-loading__canvas i{border:1px solid var(--line);background:var(--surface);border-radius:16px}.workspace-loading__canvas{align-content:start;gap:16px;display:grid}.workspace-loading__canvas i{min-height:140px}.workspace-loading__canvas i:first-child{min-height:74px}@media (prefers-reduced-motion:no-preference){.workspace-loading__rail,.workspace-loading__canvas i{animation:.9s ease-in-out infinite alternate workspace-loading}}@keyframes workspace-loading{to{opacity:.58}}.workspace-header{z-index:40;border-bottom:1px solid color-mix(in srgb, var(--line) 76%, transparent);background:var(--header);-webkit-backdrop-filter:blur(18px)saturate(125%);grid-template-columns:minmax(220px,1fr) auto minmax(220px,1fr);align-items:center;gap:20px;height:64px;padding:0 28px;display:grid;position:sticky;top:0}.workspace-header__brand{width:max-content;color:var(--ink);cursor:pointer;background:0 0;border:0;align-items:center;gap:14px;padding:0;display:inline-flex}.workspace-header__brand .brand__mark{width:34px;height:34px}.workspace-header__product{border-left:1px solid var(--line);color:var(--muted-strong);padding-left:14px;font-size:.77rem;font-weight:650}.workspace-view-switch{border:1px solid var(--line);background:color-mix(in srgb, var(--surface) 84%, transparent);border-radius:10px;align-items:center;gap:4px;padding:4px;display:flex}.workspace-view-switch button{min-height:38px;color:var(--muted-strong);white-space:nowrap;cursor:pointer;background:0 0;border:0;border-radius:7px;padding:0 16px;font-size:.82rem;font-weight:700;transition:color .18s,background-color .18s,transform .18s}.workspace-view-switch button svg{display:none}@media (hover:hover){.workspace-view-switch button:hover{color:var(--ink)}}.workspace-view-switch button.is-active{background:var(--ink);color:var(--page)}.workspace-view-switch button:active,.header-tool-button:active,.secondary-action:active,.mobile-filter-button:active{transform:scale(.97)}.workspace-header__actions{justify-content:flex-end;align-items:center;gap:8px;display:flex}.workspace-header__streak{border:1px solid var(--line);background:var(--surface-raised);min-height:40px;color:var(--ink);border-radius:10px;align-items:center;gap:7px;padding:0 12px;display:inline-flex}.workspace-header__streak svg{width:13px;height:13px;color:var(--playing-note)}.workspace-header__streak-count{font-family:var(--figures);font-size:.74rem;font-weight:700}.workspace-header__streak-unit{color:var(--muted);letter-spacing:.08em;text-transform:uppercase;font-size:.62rem;font-weight:700}@media (width<=1020px){.workspace-header__streak{display:none}}.header-tool-button{border:1px solid var(--line);background:var(--surface-raised);width:40px;height:40px;color:var(--ink);cursor:pointer;border-radius:10px;place-items:center;padding:0;transition:transform .16s,border-color .16s,background-color .16s;display:inline-grid}@media (hover:hover){.header-tool-button:hover{border-color:var(--line-strong);background:var(--surface)}}.header-tool-button svg{width:19px;height:19px}.header-tool-button--notation{font-size:1.18rem;font-weight:760}.header-language-button{letter-spacing:.06em;font-size:.68rem;font-weight:820}.workspace-shell{grid-template-columns:286px minmax(0,1fr);gap:24px;width:min(1600px,100%);min-height:calc(100dvh - 64px);margin:0 auto;padding:24px 28px 56px;display:grid}.practice-home__intro{gap:12px;padding-top:8px;display:grid}.practice-home__eyebrow{color:var(--muted);font-size:var(--label-size);letter-spacing:var(--label-tracking);text-transform:uppercase;margin:0;font-weight:500}.practice-home__intro h1{letter-spacing:-.038em;margin:0;font-size:clamp(2.2rem,3.4vw,3.4rem);font-weight:420;line-height:1}.home-tools{gap:14px;display:grid}.home-tools h2,.practice-ideas h2{letter-spacing:-.015em;margin:0;font-size:1rem;font-weight:760}.home-tools__grid{grid-template-columns:repeat(6,minmax(0,1fr));gap:14px;display:grid}.home-tool-card:nth-child(-n+3){grid-column:span 2}.home-tool-card:nth-child(n+4){grid-column:span 3}.home-tool-card:first-child{grid-column:span 4}.home-tool-card:nth-child(2),.home-tool-card:nth-child(n+3):nth-child(-n+5){grid-column:span 2}.home-tool-card:nth-child(n+6){grid-column:span 3}.home-tool-card{border:1px solid var(--line);background:var(--surface-raised);min-width:0;color:var(--ink);font:inherit;text-align:left;cursor:pointer;border-radius:16px;grid-template-rows:auto auto minmax(0,1fr) auto;align-items:start;gap:12px;padding:20px;text-decoration:none;transition:transform .16s,border-color .16s;display:grid}@media (hover:hover){.home-tool-card:hover{border-color:var(--line-strong)}}.home-tool-card:active{transform:scale(.985)}.home-tool-card.is-primary{border-color:color-mix(in srgb, var(--accent) 55%, var(--line));background:color-mix(in srgb, var(--accent) 7%, var(--surface-raised))}.home-tool-card__top{justify-content:space-between;align-items:center;gap:10px;display:flex}.home-tool-card__top>svg{border:1px solid var(--line);background:var(--surface);width:38px;height:38px;color:var(--ink);border-radius:10px;padding:9px}.home-tool-card.is-primary .home-tool-card__top>svg{border-color:var(--accent);background:var(--accent);color:var(--accent-ink)}.home-tool-card__top small{border:1px solid var(--line);color:var(--muted-strong);letter-spacing:.05em;text-transform:uppercase;white-space:nowrap;border-radius:999px;padding:4px 9px;font-size:.62rem;font-weight:740}.home-tool-card>strong{letter-spacing:-.01em;font-size:.94rem;font-weight:760;line-height:1.25}.home-tool-card__detail{color:var(--muted);font-size:.76rem;line-height:1.5}.home-tool-card__cta{color:var(--accent-text);align-items:center;gap:7px;font-size:.76rem;font-weight:740;display:inline-flex}.home-tool-card__cta svg{width:15px;height:15px;transition:transform .18s}@media (hover:hover){.home-tool-card:hover .home-tool-card__cta svg{transform:translate(3px)}}.practice-home__layout{grid-template-columns:minmax(0,1.45fr) minmax(310px,.7fr);align-items:stretch;gap:18px;display:grid}.practice-home__footer{color:var(--muted);justify-content:space-between;align-items:center;gap:24px;padding-top:4px;display:flex}.practice-home__footer p{max-width:72ch;margin:0;font-size:.72rem;line-height:1.55}.practice-home__footer nav{flex:none;gap:16px;display:flex}.practice-home__footer a{color:var(--muted-strong);text-underline-offset:3px;font-size:.7rem;font-weight:700}@media (hover:hover){.practice-home__footer a:hover{color:var(--accent-text)}}.quick-setup{border:1px solid var(--line);background:var(--surface-raised);min-width:0;box-shadow:var(--shadow);border-radius:16px;align-content:start;gap:22px;padding:24px;display:grid}.quick-setup__heading{justify-content:space-between;align-items:flex-start;gap:20px;display:flex}.quick-setup__heading div{gap:6px;display:grid}.quick-setup h2{letter-spacing:-.015em;margin:0;font-size:1rem;font-weight:760}.quick-setup__heading p,.practice-ideas>div:first-child p{color:var(--muted);margin:0;font-size:.76rem;line-height:1.45}.quick-setup__heading>svg{background:var(--accent);width:42px;height:42px;color:var(--accent-ink);border-radius:10px;padding:11px}.quick-setup__fields{grid-template-columns:.6fr minmax(180px,1.25fr) minmax(170px,1fr);gap:12px;display:grid}.quick-setup__fields label{gap:8px;min-width:0;display:grid}.quick-setup__fields label>span,.quick-setup__notes>span{color:var(--muted-strong);font-size:.72rem;font-weight:700}.quick-setup__fields select{border:1px solid var(--line);background:var(--surface);width:100%;min-height:46px;color:var(--ink);border-radius:9px;padding:0 36px 0 12px;font-size:.82rem;font-weight:650}@media (hover:hover){.quick-setup__fields select:hover{border-color:var(--line-strong)}}.quick-setup__fields select:focus-visible{border-color:var(--line-strong)}.quick-setup__notes{background:var(--surface);border-radius:12px;gap:10px;padding:16px;display:grid}.quick-setup__notes div{flex-wrap:wrap;gap:7px;display:flex}.quick-setup__notes i{border:1px solid var(--line);min-width:38px;min-height:38px;color:var(--ink-soft);border-radius:9px;place-items:center;padding:0 8px;font-size:.78rem;font-style:normal;font-weight:720;display:inline-grid}.quick-setup__notes i.is-root{border-color:var(--accent);background:var(--accent);color:var(--accent-ink)}.quick-setup__footer{justify-content:space-between;align-items:center;gap:18px;display:flex}.quick-setup__footer p{gap:4px;min-width:0;margin:0;display:grid}.quick-setup__footer strong{text-overflow:ellipsis;white-space:nowrap;font-size:.88rem;overflow:hidden}.quick-setup__footer span{color:var(--muted);font-size:.7rem}.home-primary-action{border:1px solid var(--accent);background:var(--accent);min-height:46px;color:var(--accent-ink);white-space:nowrap;cursor:pointer;border-radius:9px;flex:none;justify-content:center;align-items:center;gap:9px;padding:0 17px;font-size:.8rem;font-weight:760;transition:transform .16s,background-color .16s;display:inline-flex}@media (hover:hover){.home-primary-action:hover{background:color-mix(in srgb, var(--accent) 87%, var(--ink))}}.home-primary-action:active,.practice-ideas__list button:active{transform:scale(.98)}.home-primary-action svg{width:17px;height:17px}.practice-ideas{border:1px solid var(--line);background:var(--surface);border-radius:16px;align-content:start;gap:12px;min-width:0;padding:22px;display:grid}.practice-ideas>div:first-child{gap:5px;display:grid}.practice-ideas__list{display:grid}.practice-ideas__list button{border:0;border-top:1px solid var(--line);min-width:0;min-height:64px;color:var(--ink);text-align:left;cursor:pointer;background:0 0;grid-template-columns:minmax(0,1fr) 18px;align-content:center;gap:4px 12px;padding:4px 2px;transition:transform .16s,color .16s;display:grid}@media (hover:hover){.practice-ideas__list button:hover{color:var(--accent-text)}}.practice-ideas__list button span,.practice-ideas__list button strong{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.practice-ideas__list button span{color:var(--muted);font-size:.66rem}.practice-ideas__list button strong{font-size:.76rem}.practice-ideas__list button svg{grid-area:1/2/3;align-self:center;width:17px;height:17px;transition:transform .18s}@media (hover:hover){.practice-ideas__list button:hover svg{transform:translate(3px)}}.control-rail{border:1px solid var(--line);background:var(--surface-raised);height:max-content;max-height:calc(100dvh - 112px);box-shadow:var(--shadow);border-radius:16px;flex-direction:column;gap:22px;padding:20px;display:flex;position:sticky;top:88px;overflow-y:auto}.control-rail__header{justify-content:space-between;align-items:flex-start;gap:16px;display:flex}.control-rail__header div{gap:5px;display:grid}.control-rail__header strong{font-size:1rem}.control-rail__header span{color:var(--muted);font-size:.76rem;line-height:1.45}.control-rail__close{border:1px solid var(--line);background:var(--surface);width:40px;height:40px;color:var(--ink);border-radius:10px;flex:none;place-items:center;padding:0;display:none}.control-group{border:0;gap:10px;min-width:0;margin:0;padding:0;display:grid}.control-group legend,.field-block>span,.mini-segment-group legend,.compare-bar label>span{color:var(--muted-strong);margin-bottom:9px;font-size:.75rem;font-weight:720;line-height:1}.root-note-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:6px;display:grid}.root-note-grid button{border:1px solid var(--line);background:var(--surface);min-width:0;min-height:40px;color:var(--ink-soft);cursor:pointer;border-radius:8px;padding:0 4px;font-size:.82rem;font-weight:720;transition:transform .16s,background-color .16s,border-color .16s}@media (hover:hover){.root-note-grid button:hover{border-color:var(--line-strong)}}.root-note-grid button.is-active{border-color:var(--accent);background:var(--accent);color:var(--accent-ink)}.root-note-grid button:active,.segmented-control button:active,.shape-selector button:active,.finder-note:active,.match-row:active,.related-scale-list button:active{transform:scale(.97)}.field-block{min-width:0;display:grid}.field-block select,.compare-bar select{border:1px solid var(--line);background-color:var(--surface);width:100%;min-height:44px;color:var(--ink);border-radius:9px;padding:0 38px 0 12px;font-size:.82rem;font-weight:620}.field-block small{color:var(--muted);margin-top:8px;font-size:.72rem;line-height:1.45}.segmented-control{border:1px solid var(--line);background:var(--surface);border-radius:9px;gap:3px;padding:3px;display:inline-flex}.segmented-control--equal{grid-template-columns:repeat(3,1fr);display:grid}.segmented-control button{min-height:34px;color:var(--muted-strong);white-space:nowrap;cursor:pointer;background:0 0;border:0;border-radius:6px;padding:0 12px;font-size:.76rem;font-weight:720;transition:transform .16s,color .16s,background-color .16s}.segmented-control button.is-active{background:var(--ink);color:var(--page)}.setting-toggle{border:1px solid var(--line);background:var(--surface);min-height:48px;color:var(--ink);cursor:pointer;border-radius:10px;justify-content:space-between;align-items:center;gap:12px;padding:0 12px;font-size:.8rem;font-weight:680;display:flex}.setting-toggle span{align-items:center;gap:9px;display:flex}.setting-toggle svg{width:17px;height:17px;color:var(--muted-strong)}.setting-toggle i{border:1px solid var(--line-strong);background:var(--surface-deep);border-radius:999px;flex:none;width:34px;height:20px;transition:border-color .18s,background-color .18s;position:relative}.setting-toggle i:after{content:"";background:var(--muted-strong);border-radius:50%;width:12px;height:12px;transition:transform .18s cubic-bezier(.16,1,.3,1),background-color .18s;position:absolute;top:3px;left:3px}.setting-toggle[aria-pressed=true] i{border-color:var(--accent);background:color-mix(in srgb, var(--accent) 24%, var(--surface))}.setting-toggle[aria-pressed=true] i:after{background:var(--accent);transform:translate(14px)}.reset-button{border:1px solid var(--line);min-height:44px;color:var(--muted-strong);cursor:pointer;background:0 0;border-radius:10px;justify-content:center;align-items:center;gap:8px;margin-top:-2px;padding:0 12px;font-size:.78rem;font-weight:680;display:flex}@media (hover:hover){.reset-button:hover{border-color:var(--line-strong);color:var(--ink)}}.reset-button svg{width:17px;height:17px}.control-backdrop{display:none}.workbench-canvas{flex-direction:column;gap:18px;min-width:0;display:flex}.tool-view-header{justify-content:space-between;align-items:flex-end;gap:28px;display:flex}.tool-view-header>div:first-child{min-width:0}.context-label{color:var(--accent-text);margin-bottom:10px;font-size:.75rem;font-weight:740;display:block}.tool-view-header h1{color:var(--ink);letter-spacing:-.038em;margin:0;font-size:clamp(2.2rem,4vw,3.75rem);font-weight:420;line-height:.96}.tool-view-header>div:first-child>p:not(.scale-note-line){max-width:620px;color:var(--muted-strong);margin:14px 0 0;font-size:.98rem;line-height:1.55}.scale-note-line{flex-wrap:wrap;gap:7px;margin:14px 0 0;display:flex}.scale-note-line span{border:1px solid var(--line);background:var(--surface);min-width:30px;min-height:30px;color:var(--muted-strong);border-radius:7px;place-items:center;padding:0 7px;font-size:.75rem;font-weight:720;display:inline-grid}.scale-note-line span.is-root{border-color:var(--accent);background:var(--accent);color:var(--accent-ink)}.tool-view-header__actions{flex:none;justify-content:flex-end;align-items:center;gap:8px;display:flex}.secondary-action,.mobile-filter-button,.icon-text-button{border:1px solid var(--line);background:var(--surface-raised);min-height:42px;color:var(--ink-soft);white-space:nowrap;cursor:pointer;border-radius:10px;justify-content:center;align-items:center;gap:8px;padding:0 14px;font-size:.8rem;font-weight:700;transition:transform .16s,border-color .16s,background-color .16s;display:inline-flex}@media (hover:hover){.secondary-action:hover,.icon-text-button:hover{border-color:var(--line-strong)}}.secondary-action.is-active{border-color:var(--accent);background:color-mix(in srgb, var(--accent) 18%, var(--surface-raised))}.secondary-action svg,.mobile-filter-button svg,.icon-text-button svg{width:17px;height:17px}.mobile-filter-button{width:42px;padding:0;display:none}.inline-error{border:1px solid color-mix(in srgb, var(--alert) 64%, var(--line));background:color-mix(in srgb, var(--alert) 11%, var(--surface-raised));color:color-mix(in srgb, var(--alert) 75%, var(--ink));border-radius:10px;margin:0;padding:11px 13px;font-size:.78rem;font-weight:650}.compare-bar{border:1px solid color-mix(in srgb, var(--accent) 44%, var(--line));background:color-mix(in srgb, var(--accent) 8%, var(--surface-raised));border-radius:12px;grid-template-columns:minmax(160px,.7fr) minmax(220px,1fr) minmax(250px,1.4fr) 40px;align-items:center;gap:16px;padding:14px 16px;display:grid;overflow:hidden}.compare-bar>div{gap:4px;display:grid}.compare-bar>div span,.compare-bar label span{color:var(--muted);font-size:.68rem;font-weight:700}.compare-bar>div strong{font-size:.86rem}.compare-bar label{display:grid}.compare-bar label>span{margin-bottom:5px}.compare-bar select{min-height:38px}.compare-bar p{color:var(--muted-strong);margin:0;font-size:.76rem;line-height:1.45}.compare-bar>button{border:1px solid var(--line);background:var(--surface);width:40px;height:40px;color:var(--ink);cursor:pointer;border-radius:9px;place-items:center;padding:0;display:grid}.panel-surface{border:1px solid var(--line);background:var(--surface-raised);box-shadow:var(--shadow);border-radius:16px}.position-bridge-disclosure{border:1px solid var(--line);background:var(--surface-raised);min-width:0;box-shadow:var(--shadow);border-radius:16px}.position-bridge-disclosure>summary{min-height:72px;color:var(--ink);cursor:pointer;justify-content:space-between;align-items:center;gap:20px;padding:14px 18px;list-style:none;display:flex}.position-bridge-disclosure>summary::-webkit-details-marker{display:none}.position-bridge-disclosure>summary>span:first-child{gap:5px;min-width:0;display:grid}.position-bridge-disclosure>summary strong{letter-spacing:-.01em;font-size:.9rem;font-weight:760}.position-bridge-disclosure>summary small{color:var(--muted);font-size:.75rem;line-height:1.45}.position-bridge-disclosure__action{border:1px solid var(--line);background:var(--surface);min-height:38px;color:var(--muted-strong);border-radius:9px;flex:none;align-items:center;gap:7px;padding:0 11px;font-size:.7rem;font-weight:720;display:inline-flex}.position-bridge-disclosure__action svg{width:16px;height:16px;transition:transform .18s cubic-bezier(.16,1,.3,1)}.position-bridge-disclosure[open] .position-bridge-disclosure__action svg{transform:rotate(180deg)}.position-bridge-disclosure>div{padding:0 10px 10px}.position-bridge-disclosure .position-bridge-panel{box-shadow:none}@media (hover:hover){.position-bridge-disclosure>summary:hover .position-bridge-disclosure__action{border-color:var(--line-strong);color:var(--ink)}}@media (prefers-reduced-motion:reduce){.position-bridge-disclosure__action svg{transition:none}}.neck-workspace{min-width:0;padding:16px;overflow:hidden}.neck-toolbar{justify-content:space-between;align-items:center;gap:18px;margin-bottom:14px;display:flex}.neck-toolbar>div:first-child{align-items:baseline;gap:10px;display:flex}.neck-toolbar h2,.panel-heading-row h2{color:var(--ink);letter-spacing:-.015em;margin:0;font-size:1rem;font-weight:760}.neck-toolbar>div:first-child span,.panel-heading-row p{color:var(--muted);font-size:.75rem}.scale-fretboard{margin:0}.scale-fretboard__viewport{background:var(--fretboard-label);scrollbar-color:var(--line-strong) var(--fretboard-label);scrollbar-width:thin;scroll-snap-type:x proximity;border:1px solid #4b4c43;border-radius:12px;scroll-padding-left:72px}.scale-fretboard__viewport::-webkit-scrollbar{height:9px}.practice-sequence::-webkit-scrollbar{height:9px}.shape-selector>div::-webkit-scrollbar{height:9px}.scale-fretboard__viewport::-webkit-scrollbar-track{background:color-mix(in srgb, var(--surface) 75%, transparent)}.practice-sequence::-webkit-scrollbar-track{background:color-mix(in srgb, var(--surface) 75%, transparent)}.shape-selector>div::-webkit-scrollbar-track{background:color-mix(in srgb, var(--surface) 75%, transparent)}.scale-fretboard__viewport::-webkit-scrollbar-thumb{background:var(--line-strong);background-clip:padding-box;border:2px solid #0000;border-radius:99px}.practice-sequence::-webkit-scrollbar-thumb{background:var(--line-strong);background-clip:padding-box;border:2px solid #0000;border-radius:99px}.shape-selector>div::-webkit-scrollbar-thumb{background:var(--line-strong);background-clip:padding-box;border:2px solid #0000;border-radius:99px}.scale-fretboard__grid{isolation:isolate}.scale-fretboard__row{position:relative}.scale-fretboard__header{color:#bfc2b6;background:#1c1d18;min-height:38px}.scale-fretboard__corner,.scale-fretboard__string-label{color:#f3f0e8;background:#191a16;border-right:1px solid #4b4c43;align-content:center;justify-items:center;display:grid}.scale-fretboard__corner{font-size:.62rem;font-weight:690}.scale-fretboard__fret-label{color:#a9ac9f;scroll-snap-align:start;border-right:1px solid #4b4c43;place-items:center;min-width:48px;font-size:.62rem;font-weight:650;display:grid;position:relative}.scale-fretboard__fret-label--open{background:#20211c}.scale-fretboard__fret-number{transform:translateY(-4px)}.scale-fretboard__marker{color:#74776b;letter-spacing:2px;font-size:.66rem;line-height:1;position:absolute;bottom:2px}.scale-fretboard__string{background:linear-gradient(90deg, var(--fretboard-start), var(--fretboard-end));min-height:60px}.scale-fretboard__string+.scale-fretboard__string{border-top:1px solid #ffffff0a}.scale-fretboard__string-label{align-content:center;gap:2px}.scale-fretboard__string-label strong{color:#f4f1ea;font-size:.9rem}.scale-fretboard__string-label small{color:#8e9185;font-size:.56rem}.scale-fretboard__cell{border-right:1px solid var(--fretboard-line);scroll-snap-align:start;touch-action:manipulation;place-items:center;min-width:48px;display:grid;position:relative;min-height:60px!important}.scale-fretboard__cell:before{height:var(--string-weight,1px);content:"";background:linear-gradient(#ecece4,#8b8e83);position:absolute;top:50%;left:0;right:0;transform:translateY(-50%);box-shadow:0 1px #00000057}.scale-fretboard__string--active .scale-fretboard__string-label{color:var(--playing-note-ink);background:color-mix(in srgb, var(--playing-note) 30%, #191a16);box-shadow:inset -3px 0 0 var(--playing-note)}.scale-fretboard__string--active .scale-fretboard__string-label strong,.scale-fretboard__string--active .scale-fretboard__string-label small{color:var(--playing-note-ink)}.scale-fretboard__cell--active:before{z-index:0;background:var(--playing-note);box-shadow:0 0 5px color-mix(in srgb, var(--playing-note) 80%, transparent);animation:.18s ease-in-out infinite alternate active-bass-string}.scale-fretboard__cell--open{background:#00000024;border-right-width:4px;border-right-color:#e3e4dc}.scale-fretboard--left-handed .scale-fretboard__cell--open{border-left:4px solid #e3e4dc;border-right-width:1px}.scale-fretboard__note{z-index:1;color:#191a16;cursor:pointer;touch-action:manipulation;background:#e4e6dc;border:1px solid #f4f1ea;border-radius:50%;place-items:center;width:44px;height:44px;padding:0;display:grid;position:relative;box-shadow:inset 0 1px #ffffff9e}.scale-fretboard__note--root{border-color:var(--accent);background:var(--accent);color:var(--accent-ink)}.scale-fretboard__note--secondary{color:#f4f1ea;box-shadow:none;background:#2a2b25;border:2px solid #d9dbd0}.scale-fretboard__note--shared{border-color:var(--accent);background:linear-gradient(135deg, var(--accent) 0 50%, #e4e6dc 50% 100%);color:#191a16}.scale-fretboard__note--active{border-color:color-mix(in srgb, var(--playing-note) 58%, white);outline:3px solid color-mix(in srgb, var(--playing-note) 55%, white);outline-offset:3px;background:var(--playing-note);color:var(--playing-note-ink);box-shadow:0 0 0 7px color-mix(in srgb, var(--playing-note) 20%, transparent), 0 0 24px color-mix(in srgb, var(--playing-note) 70%, transparent)}.scale-fretboard__note--root.scale-fretboard__note--active{outline-color:color-mix(in srgb, var(--playing-note) 55%, white);background:var(--playing-note);color:var(--playing-note-ink)}.scale-fretboard__note--active .scale-fretboard__note-name{background:color-mix(in srgb, var(--playing-note) 58%, #191a16);color:var(--playing-note-ink)}@keyframes active-bass-string{0%{opacity:.72;transform:translateY(-50%)scaleY(.8)}to{opacity:1;transform:translateY(-50%)scaleY(1.9)}}@media (prefers-reduced-motion:reduce){.scale-fretboard__cell--active:before{animation:none}}.scale-fretboard__note-label{font-size:.78rem;font-weight:790;line-height:1}.scale-fretboard__note-name{color:#d9dbd0;background:#191a16;border-radius:4px;width:max-content;min-width:18px;margin:0 auto;padding:1px 4px;font-size:.47rem;font-weight:700;line-height:1.35;position:absolute;bottom:-6px;left:0;right:0}.fretboard-meta{justify-content:space-between;align-items:center;gap:18px;margin-top:12px;display:flex}.fretboard-meta p{color:var(--muted);margin:0;font-size:.71rem}.fretboard-legend{flex-wrap:wrap;align-items:center;gap:13px;display:flex}.fretboard-legend span{color:var(--muted-strong);align-items:center;gap:6px;font-size:.69rem;font-weight:650;display:inline-flex}.fretboard-legend i{border:1px solid var(--line-strong);background:#e4e6dc;border-radius:50%;width:13px;height:13px}.fretboard-legend .legend-root{border-color:var(--accent);background:var(--accent)}.fretboard-legend .legend-compare{border:2px solid var(--line-strong);background:0 0}.fretboard-legend .legend-shared{border-color:var(--accent);background:linear-gradient(135deg, var(--accent) 0 50%, #e4e6dc 50% 100%)}.shape-selector{border-top:1px solid var(--line);align-items:center;gap:12px;margin-bottom:12px;padding-top:12px;display:flex}.shape-selector>span{color:var(--muted);font-size:.66rem;font-weight:720}.shape-selector>div{gap:5px;min-width:0;display:flex;overflow-x:auto}.shape-selector button{border:1px solid var(--line);min-height:34px;color:var(--muted-strong);white-space:nowrap;cursor:pointer;background:0 0;border-radius:8px;padding:0 11px;font-size:.69rem;font-weight:690;transition:transform .16s,border-color .16s,background-color .16s}.shape-selector button.is-active{border-color:var(--accent);background:color-mix(in srgb, var(--accent) 15%, var(--surface));color:var(--ink)}.practice-transport{padding:16px}.practice-transport__lead{align-items:center;gap:14px;display:flex}.transport-buttons{gap:7px;display:flex}.transport-play,.transport-stop,.mute-button{cursor:pointer;border-radius:10px;place-items:center;padding:0;transition:transform .16s,background-color .16s;display:grid}.transport-play{border:1px solid var(--accent);background:var(--accent);width:50px;height:50px;color:var(--accent-ink)}.transport-stop{border:1px solid var(--line);background:var(--surface);width:42px;height:50px;color:var(--muted-strong)}.transport-play:active,.transport-stop:active,.mute-button:active,.compact-toggle:active{transform:scale(.96)}.transport-play svg,.transport-stop svg{width:19px;height:19px}.now-playing{align-items:center;gap:10px;min-width:150px;display:flex}.now-playing__meter{justify-content:center;align-items:center;gap:3px;width:30px;height:32px;display:flex}.now-playing__meter i{background:var(--accent);transform-origin:50%;border-radius:2px;width:3px;height:8px}.now-playing>span:nth-child(2){gap:2px;display:grid}.now-playing small{color:var(--muted);font-size:.65rem;font-style:normal;font-weight:690}.now-playing strong{color:var(--ink);font-size:1.05rem}.now-playing em{border:1px solid var(--line);min-width:30px;min-height:30px;color:var(--muted-strong);border-radius:7px;place-items:center;font-size:.7rem;font-style:normal;font-weight:720;display:grid}@media (prefers-reduced-motion:no-preference){.now-playing.is-playing .now-playing__meter i{animation:.62s ease-in-out infinite alternate meter-bounce}.now-playing.is-playing .now-playing__meter i:nth-child(2){animation-delay:90ms}.now-playing.is-playing .now-playing__meter i:nth-child(3){animation-delay:.18s}.now-playing.is-playing .now-playing__meter i:nth-child(4){animation-delay:.27s}}@keyframes meter-bounce{to{transform:scaleY(2.7)}}.transport-settings{border-top:1px solid var(--line);grid-template-columns:minmax(230px,1.6fr) minmax(150px,.9fr) auto auto 42px;align-items:end;gap:12px;margin-top:14px;padding-top:14px;display:grid}.tempo-control{gap:11px;display:grid}.tempo-control>span{color:var(--muted-strong);align-items:center;gap:7px;font-size:.72rem;font-weight:680;display:flex}.tempo-control>span strong{color:var(--ink);margin-left:auto}.tempo-control svg{width:16px;height:16px}.tempo-control input{width:100%;height:5px;accent-color:var(--accent);cursor:pointer;margin:0}.field-block--compact>span{margin-bottom:7px}.field-block--compact select{min-height:38px}.mini-segment-group{border:0;gap:6px;margin:0;padding:0;display:grid}.mini-segment-group legend{margin:0}.compact-toggle{border:1px solid var(--line);background:var(--surface);min-height:38px;color:var(--muted-strong);cursor:pointer;border-radius:9px;padding:0 13px;font-size:.74rem;font-weight:720}.compact-toggle.is-active{border-color:var(--accent);color:var(--accent-text)}.mute-button{border:1px solid var(--line);background:var(--surface);width:42px;height:38px;color:var(--ink)}.mute-button svg{width:18px;height:18px}.practice-sequence{border-top:1px solid var(--line);scroll-snap-type:x proximity;grid-auto-columns:36px;grid-auto-flow:column;gap:10px;margin-top:14px;padding-top:14px;display:grid;position:relative;overflow-x:auto}.practice-sequence:before{content:"";background:var(--line-strong);height:1px;position:absolute;top:31px;left:18px;right:18px}.practice-sequence button{z-index:1;border:1px solid var(--line);background:var(--surface-raised);width:36px;min-height:36px;color:var(--ink);scroll-snap-align:start;cursor:pointer;border-radius:50%;place-items:center;padding:0;transition:transform .16s,background-color .16s,border-color .16s;display:grid;position:relative}.practice-sequence button.is-current{border-color:var(--playing-note);background:var(--playing-note);color:var(--playing-note-ink);box-shadow:0 0 0 4px color-mix(in srgb, var(--playing-note) 18%, transparent)}.practice-sequence button:active{transform:scale(.94)}.practice-sequence strong{font-size:.67rem}.practice-sequence button.phase-melody{border-color:color-mix(in srgb, var(--accent) 62%, var(--line));background:color-mix(in srgb, var(--accent) 12%, var(--surface-raised))}.practice-sequence button.phase-solo{border-color:color-mix(in srgb, var(--playing-note) 52%, var(--line));background:color-mix(in srgb, var(--playing-note) 9%, var(--surface-raised))}.practice-sequence button.phase-bridge{border-style:dashed;border-color:var(--line-strong)}.practice-sequence button.phase-walk{border-color:var(--line-strong);background:color-mix(in srgb, var(--line-strong) 8%, var(--surface-raised))}.practice-sequence button.is-current.phase-melody,.practice-sequence button.is-current.phase-solo,.practice-sequence button.is-current.phase-bridge,.practice-sequence button.is-current.phase-walk{border-style:solid;border-color:var(--playing-note);background:var(--playing-note)}.drill-flow{border:1px solid var(--line);background:var(--surface);border-radius:12px;gap:12px;margin-top:14px;padding:14px 16px;display:grid;overflow:hidden}.drill-flow p{color:var(--muted);margin:0;font-size:.74rem;line-height:1.5}.drill-flow__phases{flex-wrap:wrap;gap:8px;display:flex}.drill-flow__phases span{border:1px solid var(--line);min-height:34px;color:var(--muted-strong);border-radius:999px;align-items:center;gap:8px;padding:0 13px;font-size:.7rem;font-weight:740;transition:border-color .2s,color .2s;display:inline-flex;position:relative;overflow:hidden}.drill-flow__phases span i{background:color-mix(in srgb, var(--accent) 26%, transparent);transform-origin:0;transition:transform .34s cubic-bezier(.16,1,.3,1);position:absolute;inset:0}.drill-flow__phases span em{font-style:normal;position:relative}.drill-flow__phases span small{color:var(--muted);font-size:.62rem;font-weight:700;position:relative}.drill-flow__phases span.is-active{border-color:var(--accent);color:var(--ink)}.drill-flow__phases span.is-done{border-color:color-mix(in srgb, var(--accent) 55%, var(--line));color:var(--muted)}.drill-variation{align-self:end;min-height:46px}@media (prefers-reduced-motion:reduce){.drill-flow__phases span,.drill-flow__phases span i{transition:none}}.theory-layout{grid-template-columns:minmax(0,1.55fr) minmax(300px,.75fr);gap:18px;display:grid}.scale-anatomy,.related-scales{min-width:0;padding:18px}.panel-heading-row{justify-content:space-between;align-items:center;gap:18px;display:flex}.panel-heading-row>div{gap:5px;display:grid}.panel-heading-row p{max-width:60ch;margin:0;line-height:1.45}.panel-heading-row--stacked{align-items:flex-start}.degree-route{grid-auto-columns:minmax(58px,1fr);grid-auto-flow:column;gap:0;margin-top:18px;display:grid;overflow-x:auto}.degree-route__item{grid-template-columns:minmax(44px,1fr) 18px;align-items:center;min-width:58px;display:grid}.degree-node{border:1px solid var(--line);background:var(--surface);border-radius:10px;align-content:center;place-items:center;gap:3px;min-height:60px;display:grid}.degree-node.is-root{border-color:var(--accent);background:color-mix(in srgb, var(--accent) 18%, var(--surface))}.degree-node strong{font-size:.86rem}.degree-node span{color:var(--muted);font-size:.64rem;font-weight:680}.degree-step{color:var(--muted);text-align:center;font-size:.57rem;font-weight:720}.scale-facts{border-top:1px solid var(--line);grid-template-columns:.65fr 1.35fr;gap:22px;margin:18px 0 0;padding-top:16px;display:grid}.scale-facts div{gap:6px;display:grid}.scale-facts dt{color:var(--muted);font-size:.65rem;font-weight:700}.scale-facts dd{color:var(--ink-soft);margin:0;font-size:.78rem;font-weight:600;line-height:1.5}.related-scale-list{gap:0;margin-top:10px;display:grid}.related-scale-list button{border:0;border-bottom:1px solid var(--line);min-height:62px;color:var(--ink);text-align:left;cursor:pointer;background:0 0;justify-content:space-between;align-items:center;gap:14px;padding:10px 2px;transition:transform .16s,color .16s;display:flex}.related-scale-list button:last-child{border-bottom:0}@media (hover:hover){.related-scale-list button:hover{color:var(--accent-text)}}.related-scale-list span{gap:5px;min-width:0;display:grid}.related-scale-list strong{font-size:.8rem}.related-scale-list small{color:var(--muted);text-overflow:ellipsis;white-space:nowrap;font-size:.64rem;overflow:hidden}.related-scale-list svg{width:18px;height:18px;color:var(--muted);flex:none}.finder-workspace{flex-direction:column;gap:28px;width:min(1400px,100% - 56px);min-height:calc(100dvh - 64px);margin:0 auto;padding:38px 0 64px;display:flex}.finder-workspace .tool-view-header{align-items:flex-start}.finder-layout{grid-template-columns:minmax(320px,.78fr) minmax(440px,1.22fr);align-items:start;gap:18px;display:grid}.finder-input,.finder-results{padding:20px}.icon-text-button{background:var(--surface);min-height:38px;padding:0 11px}.icon-text-button:disabled{cursor:not-allowed;opacity:.42}.finder-note-grid{grid-template-columns:repeat(6,minmax(48px,1fr));gap:7px;margin-top:20px;display:grid}.finder-note{border:1px solid var(--line);background:var(--surface);min-height:54px;color:var(--ink);cursor:pointer;border-radius:10px;place-items:center;padding:0;font-size:.86rem;font-weight:740;transition:transform .16s,border-color .16s,background-color .16s;display:grid;position:relative}@media (hover:hover){.finder-note:hover{border-color:var(--line-strong)}}.finder-note.is-selected{border-color:var(--accent);background:var(--accent);color:var(--accent-ink)}.finder-note svg{width:12px;height:12px;position:absolute;top:5px;right:5px}.finder-root-field{margin-top:22px}.selected-note-summary{border-top:1px solid var(--line);justify-content:space-between;align-items:center;gap:14px;margin-top:18px;padding-top:16px;display:flex}.selected-note-summary span{color:var(--muted);font-size:.68rem;font-weight:700}.selected-note-summary strong{color:var(--ink-soft);word-spacing:6px;font-size:.74rem}.exact-summary{color:var(--accent-text);align-items:center;gap:6px;font-size:.7rem;font-weight:740;display:inline-flex}.exact-summary svg{width:15px;height:15px}.finder-empty{text-align:center;place-content:center;justify-items:center;min-height:350px;padding:32px;display:grid}.finder-empty__icon{grid-template-rows:repeat(4,1fr);gap:8px;width:112px;height:72px;margin-bottom:20px;display:grid}.finder-empty__icon span{background:var(--line-strong);height:2px;position:relative}.finder-empty__icon span:after{top:50%;left:calc(18% * var(--index,1));border:2px solid var(--accent);content:"";background:var(--surface-raised);border-radius:50%;width:12px;height:12px;position:absolute;transform:translateY(-50%)}.finder-empty__icon span:nth-child(2):after{left:52%}.finder-empty__icon span:nth-child(3):after{left:34%}.finder-empty__icon span:nth-child(4):after{left:70%}.finder-empty h3{margin:0;font-size:1.1rem}.finder-empty p{max-width:38ch;color:var(--muted);margin:9px 0 0;font-size:.78rem;line-height:1.5}.match-list{margin-top:12px;display:grid}.match-row{border:0;border-bottom:1px solid var(--line);width:100%;min-height:68px;color:var(--ink);text-align:left;cursor:pointer;background:0 0;grid-template-columns:116px minmax(0,1fr) 24px;align-items:center;gap:14px;padding:10px 2px;display:grid}.match-row:last-child{border-bottom:0}.match-row__status{width:max-content;max-width:116px;color:var(--muted);font-size:.65rem;font-weight:680;line-height:1.35}.match-row__status.is-exact{color:var(--accent-text)}.match-row__main{gap:5px;min-width:0;display:grid}.match-row__main strong{font-size:.86rem}.match-row__main small{color:var(--muted);text-overflow:ellipsis;white-space:nowrap;word-spacing:5px;font-size:.66rem;overflow:hidden}.match-row>svg{width:17px;height:17px;color:var(--muted);transition:transform .18s,color .18s}@media (hover:hover){.match-row:hover>svg{color:var(--accent-text);transform:translate(3px)}}.loop-coach-workspace{flex-direction:column;gap:22px;width:min(1400px,100% - 56px);min-height:calc(100dvh - 64px);margin:0 auto;padding:38px 0 64px;display:flex}.loop-coach-header{align-items:flex-start}.loop-coach-setup{padding:20px}.loop-coach-setup__heading{justify-content:space-between;align-items:flex-start;gap:18px;display:flex}.loop-coach-setup__heading>div{gap:5px;display:grid}.loop-coach-setup__heading h2,.loop-answer-heading h2{color:var(--ink);letter-spacing:-.015em;margin:0;font-size:1rem;font-weight:760}.loop-coach-setup__heading p{color:var(--muted);margin:0;font-size:.76rem;line-height:1.45}.loop-coach-setup__heading>svg{border:1px solid var(--accent);background:var(--accent);width:38px;height:38px;color:var(--accent-ink);border-radius:10px;padding:9px}.loop-coach-fields{grid-template-columns:minmax(140px,.75fr) minmax(250px,1.4fr) minmax(90px,.5fr) minmax(220px,1.2fr);gap:12px;margin-top:20px;display:grid}.loop-coach-fields .field-block input{border:1px solid var(--line);background:var(--surface);width:100%;min-height:44px;color:var(--ink);border-radius:9px;padding:0 12px;font-size:.82rem;font-weight:680}.loop-harmony-field{border:0;gap:9px;min-width:0;margin:0;padding:0;display:grid}.loop-harmony-field legend{color:var(--muted-strong);font-size:.75rem;font-weight:720;line-height:1}.loop-harmony-field .segmented-control{min-height:44px}.loop-file-area{border-top:1px solid var(--line);grid-template-columns:minmax(330px,.9fr) minmax(260px,1.1fr);align-items:center;gap:16px;margin-top:16px;padding-top:16px;display:grid}.loop-file-picker{border:1px dashed var(--line-strong);background:var(--surface);cursor:pointer;border-radius:10px;align-items:center;gap:12px;min-height:58px;padding:10px 13px;transition:border-color .16s,background-color .16s;display:flex}@media (hover:hover){.loop-file-picker:hover{border-color:var(--accent);background:color-mix(in srgb, var(--accent) 7%, var(--surface))}}.loop-file-picker>svg,.loop-file-ready>svg{background:var(--surface-deep);width:32px;height:32px;color:var(--ink-soft);border-radius:8px;flex:none;padding:7px}.loop-file-picker>span,.loop-file-ready>span{gap:3px;min-width:0;display:grid}.loop-file-picker strong,.loop-file-ready strong{text-overflow:ellipsis;white-space:nowrap;font-size:.78rem;overflow:hidden}.loop-file-picker small,.loop-file-ready small{color:var(--muted);font-size:.66rem}.loop-file-picker input{opacity:0;width:1px;height:1px;position:absolute;overflow:hidden}.loop-file-ready{grid-template-columns:auto minmax(110px,.7fr) minmax(180px,1fr) 38px;align-items:center;gap:10px;min-width:0;display:grid}.loop-file-ready audio{width:100%;height:38px}.loop-file-ready>button{border:1px solid var(--line);background:var(--surface);width:38px;height:38px;color:var(--ink);cursor:pointer;border-radius:9px;place-items:center;padding:0;display:grid}.loop-file-ready>button svg{width:16px;height:16px}.loop-key-note{color:var(--muted-strong);margin:0;font-size:.74rem;line-height:1.5}.loop-answer-layout{grid-template-columns:minmax(0,.86fr) minmax(540px,1.14fr);align-items:stretch;gap:18px;display:grid}.loop-safe-notes,.loop-groove{min-width:0;padding:20px}.loop-answer-heading{gap:7px;display:grid}.loop-answer-heading>span{color:var(--accent-text);font-size:.7rem;font-weight:750}.loop-answer-heading h2{letter-spacing:-.035em;font-size:clamp(1.35rem,2vw,1.85rem);line-height:1.05}.loop-answer-heading p{max-width:58ch;color:var(--muted-strong);margin:0;font-size:.78rem;line-height:1.5}.loop-note-cards{grid-template-columns:repeat(auto-fit,minmax(86px,1fr));gap:7px;margin-top:18px;display:grid}.loop-note-cards button{border:1px solid var(--line);background:var(--surface);min-width:0;min-height:96px;color:var(--ink);cursor:pointer;border-radius:10px;align-content:center;place-items:center;gap:4px;padding:9px 5px;transition:transform .16s,border-color .16s,background-color .16s;display:grid}@media (hover:hover){.loop-note-cards button:hover{border-color:var(--line-strong)}}.loop-note-cards button:active,.loop-play-button:active,.loop-open-scale:active,.loop-groove-bar button.has-note:active{transform:scale(.97)}.loop-note-cards button.is-root{border-color:var(--accent);background:color-mix(in srgb, var(--accent) 13%, var(--surface))}.loop-note-cards button>span{color:var(--muted);font-size:.62rem;font-weight:720}.loop-note-cards button strong{font-size:1.14rem}.loop-note-cards button small{color:var(--muted);font-size:.59rem;line-height:1.3}.loop-safe-rule{border-top:1px solid var(--line);grid-template-columns:34px minmax(0,1fr);align-items:center;gap:10px;margin-top:16px;padding-top:14px;display:grid}.loop-safe-rule svg{background:var(--surface);width:34px;height:34px;color:var(--accent-text);border-radius:9px;padding:8px}.loop-safe-rule p,.loop-logic-tip{color:var(--muted-strong);margin:0;font-size:.72rem;line-height:1.5}.loop-play-button,.loop-open-scale{border:1px solid var(--accent);background:var(--accent);min-height:42px;color:var(--accent-ink);white-space:nowrap;cursor:pointer;border-radius:10px;justify-content:center;align-items:center;gap:8px;padding:0 14px;font-size:.76rem;font-weight:760;transition:transform .16s;display:inline-flex}.loop-play-button svg,.loop-open-scale svg{width:16px;height:16px}.loop-groove-bars{gap:12px;margin-top:18px;display:grid}.loop-groove-bar{grid-template-columns:54px minmax(0,1fr);align-items:center;gap:8px;min-width:0;display:grid}.loop-groove-bar>span{color:var(--muted);font-size:.64rem;font-weight:700}.loop-groove-bar>div{grid-template-columns:repeat(8,minmax(43px,1fr));gap:4px;min-width:0;display:grid}.loop-groove-bar button{border:1px solid var(--line);background:var(--surface);min-width:0;min-height:62px;color:var(--ink);border-radius:8px;align-content:center;place-items:center;gap:2px;padding:4px 2px;display:grid}.loop-groove-bar button.has-note{cursor:pointer}.loop-groove-bar button.is-rest{color:var(--muted);opacity:.56}.loop-groove-bar button.is-active{border-color:var(--playing-note);background:var(--playing-note);color:var(--playing-note-ink)}.loop-groove-bar button small{color:currentColor;opacity:.68;font-size:.52rem}.loop-groove-bar button strong{font-size:.73rem}.loop-groove-bar button span{color:currentColor;opacity:.65;font-size:.51rem}.loop-logic-tip{border-left:3px solid var(--accent);background:color-mix(in srgb, var(--accent) 7%, var(--surface));border-radius:0 8px 8px 0;margin-top:16px;padding:11px 12px}.loop-open-scale{border-color:var(--line);background:var(--surface);color:var(--ink);margin-top:12px}.loop-fretboard-panel{min-width:0;padding:16px;overflow:hidden}.loop-fretboard-panel .panel-heading-row{margin-bottom:14px}.loop-fretboard-key{color:var(--muted-strong);word-spacing:7px;font-size:.7rem;font-weight:700}@media (width<=1180px){.workspace-header{grid-template-columns:minmax(190px,1fr) auto minmax(120px,1fr)}.workspace-shell{grid-template-columns:1fr}.control-rail{top:76px;bottom:calc(var(--bottom-nav-space) + 12px);z-index:60;visibility:hidden;width:min(330px,100% - 24px);height:auto;max-height:none;transition:visibility 0s linear .28s,transform .28s cubic-bezier(.16,1,.3,1);position:fixed;left:12px;transform:translate(calc(-100% - 24px))}.control-rail.is-open{visibility:visible;transition-delay:0s;transform:translate(0)}.control-rail__close{display:grid}.control-backdrop{z-index:50;visibility:hidden;opacity:0;pointer-events:none;background:#09080d94;border:0;padding:0;transition:visibility 0s linear .24s,opacity .24s;display:block;position:fixed;inset:0}.control-backdrop.is-visible{visibility:visible;opacity:1;pointer-events:auto;transition-delay:0s}.mobile-filter-button{display:inline-flex}.theory-layout{grid-template-columns:minmax(0,1.35fr) minmax(290px,.8fr)}.home-tools__grid{grid-template-columns:repeat(2,minmax(0,1fr))}.home-tools__grid .home-tool-card:nth-child(n){grid-column:auto}}@media (width<=900px){.workspace-header__product{display:none}.practice-home{align-content:start;padding-top:28px}.practice-home__layout{grid-template-columns:1fr}.practice-home__footer{flex-direction:column;align-items:flex-start;gap:12px}.home-tools__grid{grid-template-columns:repeat(2,minmax(0,1fr))}.workspace-shell{padding-inline:20px}.tool-view-header{align-items:flex-end}.transport-settings{grid-template-columns:minmax(220px,1.4fr) minmax(150px,1fr) auto auto 42px}.theory-layout,.finder-layout{grid-template-columns:1fr}.loop-coach-fields{grid-template-columns:repeat(2,minmax(0,1fr))}.loop-file-area,.loop-answer-layout{grid-template-columns:1fr}.finder-results{min-height:430px}}@media (width<=720px){:root{--bottom-nav-space:calc(64px + env(safe-area-inset-bottom))}.workspace-header{background:var(--page);-webkit-backdrop-filter:none;grid-template-columns:1fr auto;gap:9px;height:58px;padding:0 12px}.workspace-header__brand .brand__mark{width:32px;height:32px}.workspace-header__brand{align-items:center;min-width:44px;min-height:44px;display:inline-flex}.workspace-header__brand .brand__name{display:none}.workspace-view-switch{z-index:40;max-width:none;padding:0;padding-bottom:env(safe-area-inset-bottom);border:0;border-top:1px solid color-mix(in srgb, var(--line) 76%, transparent);background:var(--header);-webkit-backdrop-filter:blur(18px)saturate(125%);border-radius:0;align-items:stretch;gap:0;display:flex;position:fixed;inset:auto 0 0}.workspace-view-switch button{border-radius:0;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:3px;min-height:64px;padding:6px 4px;font-size:.75rem;display:flex}.workspace-view-switch button svg{width:22px;height:22px;display:block}.segmented-control button,.shape-selector button,.field-block--compact select,.compact-toggle{min-height:44px}.transport-stop,.mute-button{width:44px;min-width:44px;height:44px}.tempo-control input{touch-action:manipulation;background-clip:content-box;height:44px;padding:19.5px 0}.practice-sequence{grid-auto-columns:44px}.practice-sequence:before{top:35px}.practice-sequence button{width:44px;min-height:44px}.workspace-header__actions{gap:5px}.practice-home{width:calc(100% - 28px);min-height:calc(100dvh - 58px);padding:22px 0 calc(38px + var(--bottom-nav-space));gap:18px}.practice-home__intro{gap:10px;padding-top:2px}.practice-home__intro h1{font-size:clamp(2rem,10vw,2.8rem)}.quick-setup{border-radius:14px;gap:18px;padding:18px}.quick-setup__fields{grid-template-columns:1fr}.quick-setup__footer{flex-direction:column;align-items:stretch}.home-primary-action{width:100%}.home-tools__grid{grid-template-columns:1fr}.home-tool-card{border-radius:14px;padding:18px}.practice-home__footer nav{flex-wrap:wrap}.practice-ideas{border-radius:14px;padding:18px}.header-tool-button{border-radius:9px;width:44px;height:44px}.workspace-shell{min-height:calc(100dvh - 58px);padding:20px 14px calc(42px + var(--bottom-nav-space));gap:0}.workspace-loading{grid-template-columns:1fr;width:calc(100% - 28px);min-height:calc(100dvh - 58px);padding:18px 0}.workspace-loading__rail{min-height:220px}.workbench-canvas{gap:14px}.tool-view-header{align-items:flex-start;gap:16px}.tool-view-header h1{font-size:clamp(2rem,10vw,2.8rem)}.context-label{margin-bottom:7px;font-size:.68rem}.scale-note-line{gap:5px;margin-top:10px}.scale-note-line span{min-width:27px;min-height:27px;padding:0 5px;font-size:.68rem}.tool-view-header__actions{gap:6px}.secondary-action{width:44px;min-height:44px;padding:0;font-size:0}.secondary-action svg{width:18px;height:18px}.compare-bar{grid-template-columns:1fr 44px}.compare-bar label,.compare-bar p{grid-column:1/-1}.compare-bar>button{grid-area:1/2}.panel-surface{border-radius:14px}.neck-workspace,.practice-transport,.scale-anatomy,.related-scales,.finder-input,.finder-results{padding:14px}.neck-toolbar{align-items:flex-start}.neck-toolbar>div:first-child{gap:3px;display:grid}.scale-fretboard__note{width:44px;height:44px}.fretboard-meta{flex-direction:column;align-items:flex-start;gap:9px}.shape-selector{flex-direction:column;align-items:flex-start;gap:7px}.shape-selector>div{align-self:stretch;padding-right:14px;-webkit-mask-image:linear-gradient(90deg,#000 calc(100% - 26px),#0000);mask-image:linear-gradient(90deg,#000 calc(100% - 26px),#0000)}.practice-transport__lead{align-items:center}.transport-settings{grid-template-columns:minmax(0,1fr) minmax(130px,.8fr) 42px}.tempo-control{grid-column:1/-1}.mini-segment-group{grid-column:1}.compact-toggle{grid-column:2;align-self:end}.mute-button{grid-column:3;align-self:end}.field-block--compact{grid-area:2/1/auto/-1}.scale-facts{grid-template-columns:1fr;gap:14px}.finder-workspace{width:calc(100% - 28px);min-height:calc(100dvh - 58px);padding:24px 0 calc(42px + var(--bottom-nav-space));gap:20px}.loop-coach-workspace{width:calc(100% - 28px);min-height:calc(100dvh - 58px);padding:24px 0 calc(42px + var(--bottom-nav-space));gap:18px}.loop-coach-setup,.loop-safe-notes,.loop-groove,.loop-fretboard-panel{padding:14px}.loop-coach-fields{grid-template-columns:1fr}.loop-file-ready{grid-template-columns:auto minmax(0,1fr) 40px}.loop-file-ready audio{grid-area:2/1/auto/-1}.loop-file-ready>button{grid-area:1/3}.loop-note-cards{grid-template-columns:repeat(auto-fit,minmax(76px,1fr))}.loop-groove .panel-heading-row{flex-direction:column;align-items:flex-start}.loop-play-button{width:100%}.loop-groove-bar{grid-template-columns:1fr}.loop-groove-bar>div{min-width:372px}.loop-groove-bar{overflow-x:auto}.loop-fretboard-panel .panel-heading-row{flex-direction:column;align-items:flex-start}.finder-note-grid{grid-template-columns:repeat(4,minmax(48px,1fr))}.match-row{grid-template-columns:92px minmax(0,1fr) 20px;gap:10px}.match-row__status{max-width:92px}.icon-text-button{min-height:44px}}@media (width<=430px){.workspace-header{gap:5px;padding-inline:8px}.workspace-header__brand .brand__mark{width:30px;height:30px}.workspace-view-switch button{padding-inline:5px;font-size:.67rem}.workspace-header__actions{gap:4px}.header-tool-button{width:44px;height:44px}.tool-view-header--explorer{grid-template-columns:minmax(0,1fr) auto;display:grid}.tool-view-header__actions{padding-top:20px}.neck-toolbar .segmented-control button{padding-inline:9px}.fretboard-legend{gap:9px}.now-playing{min-width:0}.now-playing__meter{display:none}.transport-settings{grid-template-columns:minmax(0,1fr) auto 42px}.finder-note-grid{grid-template-columns:repeat(3,minmax(48px,1fr))}.selected-note-summary{flex-direction:column;align-items:flex-start}.match-row{grid-template-columns:minmax(0,1fr) 20px}.match-row__status{grid-column:1;max-width:none}.match-row__main{grid-column:1}.match-row>svg{grid-area:1/2/3}.tool-view-header__actions .secondary-action,.mobile-filter-button{min-width:44px;min-height:44px}.drill-variation{min-width:44px}.root-note-grid button{min-height:44px}.control-rail__close,.compare-bar>button{width:44px;height:44px}.compare-bar{grid-template-columns:1fr 44px}}@media (prefers-reduced-motion:reduce){.control-rail,.control-backdrop,.scale-fretboard__note,.workspace-view-switch button,.shape-selector button,.match-row>svg,.setting-toggle i:after{transition-duration:.01ms!important}}@media (prefers-reduced-transparency:reduce){.workspace-header{background:var(--page);-webkit-backdrop-filter:none}}.corner-marks{pointer-events:none;width:100%;height:100%;position:absolute;inset:0}.corner-marks path{fill:none;stroke:var(--engrave-strong);stroke-width:1px}.practice-home{align-content:start;gap:clamp(30px,4vw,54px);width:min(1400px,100% - 56px);min-height:calc(100dvh - 64px);margin:0 auto;padding:24px 0 38px;display:grid}.home-hero{grid-template-columns:minmax(480px,1.08fr) minmax(0,.92fr);align-items:center;gap:clamp(24px,3.5vw,52px);min-height:min(720px,100dvh - 116px);display:grid}.practice-home__intro{align-content:center;gap:16px;padding-top:0;display:grid}.practice-home__intro h1{letter-spacing:-.062em;max-width:13ch;font-size:clamp(3.4rem,4.9vw,5.1rem);line-height:.96}.home-hero__setup{border:1px solid var(--line);background:color-mix(in srgb, var(--surface-raised) 92%, transparent);box-shadow:var(--shadow);border-radius:16px;gap:16px;margin-top:6px;padding:18px;display:grid;position:relative}.home-hero__setup>.corner-marks{width:calc(100% - 14px);height:calc(100% - 14px);inset:7px}.home-hero__setup-heading{justify-content:space-between;align-items:center;gap:14px;display:flex}.home-hero__setup h2{letter-spacing:-.015em;margin:0;font-size:1.06rem;font-weight:760}.home-hero__atlas-chip{border:1px solid var(--line);background:var(--surface);color:var(--muted-strong);white-space:nowrap;border-radius:7px;align-items:center;gap:6px;padding:5px 9px;font-size:.62rem;font-weight:720;display:inline-flex}.home-hero__atlas-chip>span{font-family:var(--figures)}.home-hero__field{gap:8px;display:grid}.home-hero__field-head{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;display:flex}.home-hero__field-label{color:var(--muted);font-size:var(--label-size);letter-spacing:var(--label-tracking);text-transform:uppercase;font-weight:500}.home-keyboard{display:grid}.home-keyboard__sharps{z-index:2;grid-template-columns:repeat(14,minmax(0,1fr));gap:3px;margin-bottom:-7px;display:grid;position:relative}.home-keyboard__naturals{grid-template-columns:repeat(7,minmax(0,1fr));gap:3px;display:grid}.home-keyboard button{cursor:pointer;transition:border-color .16s,background-color .16s,color .16s}.home-keyboard__sharps button{border:1px solid var(--line-strong);background:var(--surface-deep);height:34px;color:var(--muted-strong);border-radius:0 0 8px 8px;place-items:center;padding:0;font-size:.68rem;font-weight:720;display:grid}.home-keyboard__naturals button{border:1px solid var(--line);background:var(--surface);height:50px;color:var(--ink);border-radius:8px;justify-content:center;align-items:flex-end;padding:0 0 7px;font-size:.82rem;font-weight:740;display:flex}.home-keyboard button.is-active{border-color:var(--accent);background:var(--accent);color:var(--accent-ink)}.home-scale-tabs{flex-wrap:wrap;gap:4px;display:flex}.home-scale-tabs button{min-height:30px;color:var(--muted);white-space:nowrap;cursor:pointer;background:0 0;border:1px solid #0000;border-radius:7px;padding:0 10px;font-size:.72rem;font-weight:720}.home-scale-tabs button.is-active{border-color:var(--tab-hue);background:color-mix(in srgb, var(--tab-hue) 12%, transparent);color:var(--tab-hue);font-weight:760}.home-scale-chips,.home-tuning-chips{flex-wrap:wrap;gap:6px;display:flex}.home-scale-chip{border:1px solid var(--line);background:var(--surface-raised);min-height:38px;color:var(--ink-soft);white-space:nowrap;cursor:pointer;border-radius:9px;align-items:center;gap:8px;padding:0 13px;font-size:.8rem;font-weight:700;transition:border-color .16s,background-color .16s,color .16s;display:inline-flex}.home-scale-chip>i{border:1px solid var(--chip-hue);background:0 0;border-radius:50%;flex:none;width:6px;height:6px;display:block}.home-scale-chip.is-collected>i{background:var(--chip-hue)}.home-scale-chip[aria-pressed=true]{border-color:var(--chip-hue);background:var(--chip-hue);color:#fbf9f4;font-weight:740}.home-scale-chip[aria-pressed=true]>i{background:0 0;border-color:#ffffffb3}.home-scale-chip.is-collected[aria-pressed=true]>i{background:#fbf9f4}.home-tuning-chips button{border:1px solid var(--line);background:var(--surface-raised);min-height:36px;color:var(--ink-soft);font-family:var(--figures);white-space:nowrap;cursor:pointer;border-radius:9px;padding:0 12px;font-size:.72rem;font-weight:700;transition:border-color .16s,background-color .16s,color .16s}.home-tuning-chips button.is-active{border-color:var(--ink);background:var(--ink);color:var(--page)}.home-tuning-chips .home-shuffle{border:1px dashed var(--line-strong);color:var(--accent-text);background:0 0;align-items:center;gap:7px;font-family:inherit;font-size:.78rem;font-weight:740;display:inline-flex}.home-tuning-chips .home-shuffle svg{width:16px;height:16px}.home-hero__setup-footer{border-top:1px solid var(--line);justify-content:space-between;align-items:center;gap:14px;padding-top:12px;display:flex}.home-hero__setup-footer p{gap:3px;min-width:0;margin:0;display:grid}.home-hero__setup-footer strong{text-overflow:ellipsis;white-space:nowrap;font-size:.86rem;overflow:hidden}.home-hero__setup-footer span{color:var(--muted);font-size:.68rem}.home-hero__setup-footer .home-primary-action{min-height:48px;padding:0 18px;font-size:.82rem}.home-primary-action{transition:transform .18s cubic-bezier(.16,1,.3,1),background-color .18s}.home-primary-action:active{transform:translateY(1px)scale(.985)}.home-hero__visual{aspect-ratio:1.18;isolation:isolate;border:1px solid var(--line);min-width:0;box-shadow:var(--shadow);background:#14121b;border-radius:18px;order:-1;margin:0;position:relative;overflow:hidden}.home-hero__visual:after{z-index:1;content:"";pointer-events:none;background:linear-gradient(#0000 52%,#08070cb3 100%);position:absolute;inset:0}.home-hero__visual>video{object-fit:cover;object-position:center;filter:saturate(.78)contrast(1.05);width:100%;height:100%}.home-hero__video-control{z-index:3;color:#f3f0e8;-webkit-backdrop-filter:blur(12px);cursor:pointer;background:#110f17c7;border:1px solid #ffffff38;border-radius:10px;place-items:center;width:44px;height:44px;padding:0;transition:transform .16s,background-color .16s;display:grid;position:absolute;top:16px;right:16px;box-shadow:inset 0 1px #ffffff1a}.home-hero__video-control svg{width:17px;height:17px}.home-hero__video-control:active{transform:translateY(1px)scale(.98)}.home-hero__strings{z-index:2;pointer-events:none;gap:9px;display:grid;position:absolute;top:47%;left:13%;right:-8%;transform:rotate(-13.5deg)}.home-hero__strings i{opacity:.3;transform-origin:50%;background:linear-gradient(90deg,#0000,#a99cff94 38%,#0000 88%);height:1px;display:block;transform:scaleX(.78)}@media (prefers-reduced-motion:no-preference){.home-hero__visual:has(.home-groove__toggle[aria-pressed=true]) .home-hero__strings i{animation:2.8s cubic-bezier(.16,1,.3,1) infinite home-string-pulse}.home-hero__strings i:nth-child(2){animation-delay:.16s}.home-hero__strings i:nth-child(3){animation-delay:.32s}.home-hero__strings i:nth-child(4){animation-delay:.48s}}@keyframes home-string-pulse{0%,62%,to{opacity:.18;transform:scaleX(.76)}18%{opacity:.68;transform:scaleX(1)}}.home-hero__groove{z-index:3;color:#f3f0e8;-webkit-backdrop-filter:blur(16px)saturate(125%);background:#0e0c13d6;border:1px solid #ffffff24;border-radius:12px;gap:8px;min-width:0;padding:11px 12px;display:grid;position:absolute;bottom:16px;left:16px;right:16px;box-shadow:inset 0 1px #ffffff1a}.home-hero__groove--loading{align-content:center;gap:3px;min-height:76px}.home-hero__groove--loading strong{font-size:.78rem}.home-hero__groove--loading span{color:#aaada4;font-size:.65rem}.home-ledger{gap:12px;display:grid}.home-ledger__heading{border-bottom:1px solid var(--line);justify-content:space-between;align-items:baseline;gap:18px;padding-bottom:10px;display:flex}.home-ledger__eyebrow{color:var(--muted);font-size:var(--label-size);letter-spacing:var(--label-tracking);text-transform:uppercase;margin:0;font-weight:500}.home-ledger__date{color:var(--muted);font-family:var(--figures);letter-spacing:.1em;margin:0;font-size:.62rem}.home-ledger__grid{grid-template-columns:minmax(0,1.02fr) minmax(340px,.98fr);align-items:stretch;gap:14px;display:grid}.home-ledger__quests{border:1px solid var(--line);background:var(--surface-raised);box-shadow:var(--shadow);border-radius:16px;align-content:start;gap:14px;padding:20px;display:grid;position:relative}.home-ledger__quests>.corner-marks{width:calc(100% - 14px);height:calc(100% - 14px);inset:7px}.home-ledger__quests-heading{justify-content:space-between;align-items:center;gap:14px;display:flex}.home-ledger__quests h2{letter-spacing:-.015em;margin:0;font-size:1.12rem;font-weight:760}.home-ledger__count{font-family:var(--figures);color:var(--muted);font-size:.72rem;font-weight:700}.home-ledger__count.is-complete{color:var(--accent-text)}.home-ledger__quest-list{gap:8px;display:grid}.home-ledger__quest{border:1px solid var(--line);min-height:58px;color:var(--ink);text-align:left;cursor:pointer;background:0 0;border-radius:10px;grid-template-columns:26px minmax(0,1fr) auto;align-items:center;gap:12px;padding:8px 12px;transition:border-color .18s,background-color .18s;display:grid}.home-ledger__quest.is-done{border-color:color-mix(in srgb, var(--quest-hue) 40%, var(--line));background:color-mix(in srgb, var(--quest-hue) 6%, transparent)}.home-ledger__quest-box{border:1px solid color-mix(in srgb, var(--quest-hue) 55%, var(--line-strong));background:var(--surface);color:#0000;border-radius:5px;place-items:center;width:24px;height:24px;display:grid}.home-ledger__quest.is-done .home-ledger__quest-box{border-color:var(--quest-hue);background:var(--quest-hue);color:#fbf9f4}.home-ledger__quest-box svg{width:14px;height:14px}.home-ledger__quest-copy{gap:2px;min-width:0;display:grid}.home-ledger__quest-copy strong{font-size:.94rem;font-weight:740;line-height:1.25}.home-ledger__quest.is-done .home-ledger__quest-copy strong{color:var(--muted);text-decoration:line-through;-webkit-text-decoration-color:var(--line-strong);text-decoration-color:var(--line-strong)}.home-ledger__quest-copy small{color:var(--muted);font-size:.76rem;line-height:1.35}.home-ledger__quest-xp{font-family:var(--figures);color:color-mix(in srgb, var(--quest-hue) 72%, var(--muted));white-space:nowrap;font-size:.72rem;font-weight:700}.home-ledger__quest.is-done .home-ledger__quest-xp{color:var(--quest-hue)}.home-ledger__complete-banner{border:1px solid color-mix(in srgb, var(--accent) 42%, var(--line));background:color-mix(in srgb, var(--accent) 8%, transparent);color:var(--accent-text);border-radius:9px;align-items:center;gap:8px;margin:0;padding:10px 12px;font-size:.74rem;font-weight:740;display:flex}.home-ledger__complete-banner svg{flex:none;width:14px;height:14px}.home-ledger__stats{grid-template-columns:repeat(2,minmax(0,1fr));grid-auto-rows:minmax(0,1fr);gap:14px;display:grid}.home-ledger__stat{border:1px solid var(--line);background:var(--surface-raised);border-radius:12px;align-content:space-between;gap:10px;padding:16px;display:grid}.home-ledger__label{color:var(--muted);font-size:var(--label-size);letter-spacing:var(--label-tracking);text-transform:uppercase;margin:0;font-weight:500}.home-ledger__tally{width:100%;max-width:132px;height:26px}@keyframes home-tally-draw{0%{stroke-dashoffset:34px}to{stroke-dashoffset:0}}@media (prefers-reduced-motion:no-preference){.home-ledger__tally line{stroke-dasharray:34;animation:.46s cubic-bezier(.16,1,.3,1) both home-tally-draw}}.home-ledger__streak-value{align-items:baseline;gap:6px;margin:0;display:flex}.home-ledger__figure{font-family:var(--figures);font-size:2rem;font-weight:640;line-height:1}.home-ledger__streak-value>span:last-child{color:var(--muted);font-size:.66rem;font-weight:700}.home-ledger__goal-dial{place-items:center;width:92px;height:92px;margin:0 auto;display:grid;position:relative}.home-ledger__ring{width:92px;height:92px}.home-ledger__ring circle:nth-of-type(2){transition:stroke-dasharray .5s cubic-bezier(.16,1,.3,1)}.home-ledger__goal-dial strong{color:var(--ink);font-family:var(--figures);letter-spacing:-.01em;place-items:center;font-size:1.12rem;font-weight:640;display:grid;position:absolute;inset:0}.home-ledger__level-title{letter-spacing:-.015em;margin:0;font-size:1.22rem;font-weight:760}.home-ledger__xp-track{background:var(--engrave-strong);border-radius:2px;height:4px;position:relative;overflow:hidden}.home-ledger__xp-track i{background:var(--accent);border-radius:2px;transition:width .5s cubic-bezier(.16,1,.3,1);display:block;position:absolute;inset:0 auto 0 0}.home-ledger__xp-caption{color:var(--muted);font-family:var(--figures);justify-content:space-between;gap:8px;margin:6px 0 0;font-size:.7rem;display:flex}.home-ledger__week-bars{grid-template-columns:repeat(7,minmax(0,1fr));align-items:end;gap:6px;height:58px;display:grid}.home-ledger__week-bars i{border-radius:2px 2px 0 0;display:block}.home-ledger__week-days{grid-template-columns:repeat(7,minmax(0,1fr));gap:6px;display:grid}.home-ledger__week-days span{text-align:center;color:var(--muted);letter-spacing:.05em;font-size:.62rem;font-weight:720}.home-ledger__week-days .is-today{color:var(--accent-text)}.home-presets{border-top:1px solid var(--line);border-bottom:1px solid var(--line);align-items:center;gap:22px;padding:12px 0;display:flex}.home-presets>span{color:var(--muted);flex:none;align-items:baseline;gap:8px;font-size:.76rem;font-weight:720;display:inline-flex}.home-presets>span>b{color:var(--accent-text);font-family:var(--figures);font-size:.6rem;font-weight:700}.home-presets>div{flex:1;gap:7px;min-width:0;display:flex}.home-presets a{border:1px solid var(--line);min-height:46px;color:var(--ink-soft);white-space:nowrap;cursor:pointer;background:0 0;border-radius:9px;flex:1;justify-content:center;align-items:center;gap:7px;padding:0 14px;font-size:.8rem;font-weight:720;transition:transform .16s,border-color .16s,background-color .16s;display:inline-flex}.home-presets a svg{width:14px;height:14px}.home-presets a:active{transform:scale(.98)}.home-paths{gap:24px;display:grid}.home-paths__heading{letter-spacing:-.038em;max-width:16ch;margin:0;font-size:clamp(2.8rem,5vw,5.2rem);font-weight:420;line-height:.98}.home-paths__grid{grid-template-columns:minmax(0,1.32fr) minmax(320px,.68fr);align-items:stretch;gap:18px;display:grid}.home-path-feature{border:1px solid color-mix(in srgb, var(--accent) 42%, var(--line));background:color-mix(in srgb, var(--accent) 6%, var(--surface-raised));border-radius:16px;grid-template-columns:minmax(0,1.15fr) minmax(240px,.85fr);min-width:0;transition:transform .22s cubic-bezier(.16,1,.3,1),border-color .18s;display:grid;overflow:hidden}.home-path-feature>img{object-fit:cover;filter:saturate(.8)contrast(1.04);width:100%;height:100%;min-height:330px}.home-path-feature__copy{flex-direction:column;justify-content:center;align-items:flex-start;gap:14px;padding:clamp(20px,2.4vw,34px);display:flex}.home-path-feature__icon{background:var(--accent);width:54px;height:54px;color:var(--accent-ink);border-radius:12px;place-items:center;display:grid}.home-path-feature__icon svg{width:27px;height:27px}.home-path-feature__copy>strong{letter-spacing:-.035em;max-width:13ch;font-size:clamp(1.65rem,2.6vw,2.7rem);font-weight:760;line-height:1.02}.home-path-feature__copy b{border:1px solid var(--accent);background:var(--accent);min-height:48px;color:var(--accent-ink);border-radius:9px;align-items:center;gap:9px;margin-top:2px;padding:0 18px;font-size:.82rem;font-weight:760;display:inline-flex}.home-path-feature__progress{gap:6px;width:min(220px,100%);display:grid}.home-path-feature__progress-dots{grid-template-columns:repeat(5,minmax(0,1fr));gap:4px;display:grid}.home-path-feature__progress-dots i{background:var(--engrave-strong);border-radius:2px;height:4px;display:block}.home-path-feature__progress-dots i[data-done=true]{background:var(--accent)}.home-path-feature__progress-caption{color:var(--muted);font-family:var(--figures);font-size:.7rem}.home-path-feature__copy b svg,.home-path-pair a>svg:last-child,.home-tool-index a>svg:last-child{width:18px;height:18px;transition:transform .18s}.home-path-feature:active,.home-path-pair a:active{transform:scale(.985)}.home-path-pair{grid-template-rows:repeat(2,minmax(0,1fr));gap:18px;display:grid}.home-path-pair a{border:1px solid var(--line);background:var(--surface-raised);border-radius:16px;grid-template-columns:54px minmax(0,1fr) 20px;align-items:center;gap:14px;min-width:0;padding:22px;transition:transform .2s cubic-bezier(.16,1,.3,1),border-color .18s;display:grid}.home-path-pair a>svg:first-child{border:1px solid color-mix(in srgb, var(--card-hue) 36%, var(--line));background:color-mix(in srgb, var(--card-hue) 13%, var(--surface));width:54px;height:54px;color:var(--card-hue);border-radius:12px;padding:13px}.home-path-pair a>span{gap:6px;min-width:0;display:grid}.home-path-pair strong{font-size:1.1rem;line-height:1.2}.home-path-pair small{color:var(--muted-strong);font-family:var(--figures);font-size:.7rem}.home-tool-index{border-top:1px solid var(--line);border-bottom:1px solid var(--line);grid-template-columns:repeat(5,minmax(0,1fr));display:grid}.home-tool-index a{grid-template-columns:48px minmax(0,1fr) 18px;align-items:center;gap:14px;min-width:0;padding:20px 18px;transition:background-color .18s,color .18s;display:grid}.home-tool-index a+a{border-left:1px solid var(--line)}.home-tool-index a>svg:first-child{background:color-mix(in srgb, var(--card-hue) 13%, var(--surface));width:48px;height:48px;color:var(--card-hue);border-radius:11px;padding:11px}.home-tool-index strong{min-width:0;font-size:.95rem;font-weight:740;line-height:1.25}.practice-home__footer p{max-width:56ch;font-size:.78rem}.practice-home__footer a{font-size:.76rem}@media (hover:hover){.home-keyboard button:not(.is-active):hover,.home-scale-chip[aria-pressed=false]:hover,.home-tuning-chips button:not(.is-active):not(.home-shuffle):hover,.home-presets a:hover{border-color:var(--line-strong)}.home-tuning-chips .home-shuffle:hover{border-style:solid;border-color:var(--accent);background:color-mix(in srgb, var(--accent) 7%, transparent)}.home-primary-action:hover{background:color-mix(in srgb, var(--accent) 87%, var(--ink));transform:translateY(-2px)}.home-presets a:hover,.home-tool-index a:hover{background:var(--surface)}.home-path-feature:hover,.home-path-pair a:hover{border-color:var(--line-strong);transform:translateY(-3px)}.home-path-feature:hover{border-color:var(--accent)}.home-path-feature:hover b svg,.home-path-pair a:hover>svg:last-child,.home-tool-index a:hover>svg:last-child{transform:translate(3px)}.home-tool-index a:hover{color:var(--accent-text)}}@media (prefers-reduced-transparency:reduce){.home-hero__groove,.home-hero__video-control{-webkit-backdrop-filter:none;background:#20211c}}@media (width<=1080px){.home-ledger__grid{grid-template-columns:1fr}.home-hero{grid-template-columns:minmax(430px,.94fr) minmax(0,1fr);gap:28px}.practice-home__intro h1{font-size:clamp(3rem,5.4vw,3.8rem)}.home-path-feature{grid-template-columns:minmax(0,1fr) minmax(210px,.78fr)}}@media (width<=900px){.home-hero{grid-template-columns:1fr;min-height:auto}.practice-home__intro h1{max-width:14ch}.home-hero__visual{aspect-ratio:16/10}.home-paths__grid,.home-path-feature{grid-template-columns:1fr}.home-path-feature>img{aspect-ratio:16/8;min-height:290px}.home-path-feature__copy>strong{max-width:18ch}.home-path-pair{grid-template-rows:none;grid-template-columns:repeat(2,minmax(0,1fr))}.home-tool-index{grid-template-columns:repeat(2,minmax(0,1fr))}.home-tool-index a:nth-child(odd){border-left:0}.home-tool-index a:nth-child(n+3){border-top:1px solid var(--line)}}@media (width<=720px){.practice-home{width:calc(100% - 28px);min-height:calc(100dvh - 58px);padding:22px 0 calc(38px + var(--bottom-nav-space));gap:52px}.home-hero{gap:22px}.practice-home__intro{gap:14px}.practice-home__intro h1{max-width:12ch;font-size:clamp(2.7rem,11.5vw,3.35rem);line-height:.96}.home-hero__setup{border-radius:14px;gap:14px;margin-top:2px;padding:15px}.home-keyboard__sharps button{height:38px}.home-keyboard__naturals button{height:54px;padding-bottom:8px;font-size:.86rem}.home-scale-chip,.home-tuning-chips button{min-height:44px}.home-hero__setup-footer{flex-direction:column;align-items:stretch}.home-hero__setup-footer .home-primary-action{width:100%}.home-hero__visual{isolation:auto;aspect-ratio:auto;min-height:0;box-shadow:none;background:0 0;border:0;border-radius:0;gap:10px;display:grid;overflow:visible}.home-hero__visual:after,.home-hero__strings{display:none}.home-hero__visual>video{aspect-ratio:1.18;border:1px solid var(--line);border-radius:14px;height:auto}.home-hero__video-control{top:10px;right:10px}.home-hero__groove{-webkit-backdrop-filter:none;background:#20211c;gap:8px;padding:11px;position:relative;bottom:auto;left:auto;right:auto}.home-presets{flex-direction:column;align-items:flex-start;gap:9px}.home-presets>div{scroll-snap-type:x proximity;scrollbar-width:none;width:calc(100vw - 28px);margin-left:-14px;margin-right:-14px;padding:0 14px 3px;overflow-x:auto}.home-presets>div::-webkit-scrollbar{display:none}.home-presets a{scroll-snap-align:start;flex:none;min-width:max-content}.home-paths{gap:20px}.home-paths__heading{font-size:clamp(2.4rem,12vw,3.35rem)}.home-path-feature,.home-path-pair a{border-radius:14px}.home-path-feature>img{aspect-ratio:16/9;min-height:210px}.home-path-feature__copy{padding:22px}.home-path-pair{grid-template-columns:1fr}.home-path-pair a{padding:18px}.home-tool-index{grid-template-columns:1fr}.home-tool-index a{border-left:0}.home-tool-index a+a{border-top:1px solid var(--line)}.practice-home__footer{flex-direction:column;align-items:flex-start;gap:12px}.practice-home__footer nav{flex-wrap:wrap}}.workspace-view-switch{position:relative}.workspace-more-menu[hidden]{display:none}.workspace-more-menu{z-index:70;border:1px solid var(--line);background:var(--surface-raised);width:310px;box-shadow:var(--shadow);border-radius:12px;gap:4px;padding:8px;display:grid;position:absolute;top:calc(100% + 12px);right:0}.workspace-view-switch .workspace-more-menu button{min-height:58px;color:var(--ink);text-align:left;background:0 0;border:0;border-radius:8px;grid-template-columns:36px minmax(0,1fr);align-items:center;gap:11px;padding:8px 10px;display:grid}.workspace-view-switch .workspace-more-menu button>svg{border:1px solid var(--line);background:var(--surface);width:36px;height:36px;color:var(--ink-soft);border-radius:9px;padding:8px;display:block}.workspace-more-menu button>span{gap:3px;min-width:0;display:grid}.workspace-more-menu strong,.workspace-more-menu small{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.workspace-more-menu strong{font-size:.78rem;font-weight:740}.workspace-more-menu small{color:var(--muted);font-size:.66rem;font-weight:580}.workspace-view-switch .workspace-more-menu button.is-active{background:color-mix(in srgb, var(--accent) 13%, var(--surface));color:var(--ink)}.workspace-view-switch .workspace-more-menu button.is-active>svg{border-color:var(--accent);background:var(--accent);color:var(--accent-ink)}@media (hover:hover){.workspace-view-switch .workspace-more-menu button:hover{background:var(--surface)}}@media (width<=720px){.workspace-view-switch{position:fixed}.workspace-view-switch>button{white-space:nowrap;flex:1;min-width:0;min-height:64px}.workspace-more-menu{background:var(--surface-raised);border-radius:14px;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px;width:auto;padding:9px;position:absolute;inset:auto 10px calc(100% + 10px);box-shadow:0 -20px 60px #0302083d}.workspace-view-switch .workspace-more-menu button{grid-template-columns:34px minmax(0,1fr);min-height:68px;padding:8px}.workspace-view-switch .workspace-more-menu button>svg{width:34px;height:34px}}@media (width<=390px){.workspace-view-switch>button{font-size:.75rem}.workspace-more-menu{grid-template-columns:1fr}.workspace-view-switch .workspace-more-menu button{min-height:56px}}@media (prefers-reduced-motion:reduce){.workspace-more-menu button{transition-duration:.01ms!important}}.scale-dna{--dna-comparison:#9d8cff;background:radial-gradient(circle at 86% 10%, color-mix(in srgb, var(--dna-comparison) 10%, transparent), transparent 34%), radial-gradient(circle at 8% 90%, color-mix(in srgb, var(--accent) 8%, transparent), transparent 30%), var(--surface-raised);min-width:0;padding:18px;position:relative;overflow:hidden}.scale-dna:before{content:"";background:linear-gradient(90deg, transparent, var(--accent), var(--dna-comparison), transparent);opacity:.72;height:1px;position:absolute;top:0;left:18px;right:18px}.scale-dna__header{grid-template-columns:minmax(280px,1fr) auto;align-items:end;gap:24px;margin-bottom:16px;display:grid}.scale-dna__intro{min-width:0}.scale-dna__intro>span{color:var(--accent-text);letter-spacing:.14em;margin-bottom:6px;font-size:.64rem;font-weight:820;display:block}.scale-dna__intro h2{color:var(--ink);letter-spacing:-.025em;margin:0;font-size:clamp(1.05rem,1.7vw,1.35rem);font-weight:820}.scale-dna__intro p{max-width:680px;color:var(--muted);margin:5px 0 0;font-size:.76rem;line-height:1.45}.scale-dna__legend{flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:8px 14px;display:flex}.scale-dna__legend span{color:var(--muted-strong);white-space:nowrap;align-items:center;gap:6px;font-size:.68rem;font-weight:700;display:inline-flex}.scale-dna__swatch{background:var(--line-strong);border-radius:2px;width:8px;height:8px}.scale-dna__swatch--shared{background:var(--accent);box-shadow:0 0 12px color-mix(in srgb, var(--accent) 50%, transparent)}.scale-dna__swatch--primary{background:var(--ink-soft)}.scale-dna__swatch--comparison{background:var(--dna-comparison)}.scale-dna__viewport{border:1px solid var(--line);background:color-mix(in srgb, var(--surface-deep) 72%, var(--page));scrollbar-color:var(--line-strong) transparent;scrollbar-width:thin;scroll-snap-type:x proximity;border-radius:12px;min-width:0;overflow-x:auto}.scale-dna__viewport::-webkit-scrollbar{height:8px}.scale-dna__viewport::-webkit-scrollbar-track{background:0 0}.scale-dna__viewport::-webkit-scrollbar-thumb{background:var(--line-strong);background-clip:padding-box;border:2px solid #0000;border-radius:99px}.scale-dna__track{grid-template-columns:repeat(12,minmax(58px,1fr));min-width:720px;display:grid}.scale-dna__cell{border-right:1px solid var(--line);min-height:96px;color:var(--muted);background:color-mix(in srgb, var(--surface-raised) 74%, transparent);scroll-snap-align:start;grid-template-rows:8px 1fr auto auto;place-items:center;gap:2px;padding:10px 6px 8px;display:grid;position:relative;overflow:hidden}.scale-dna__cell:last-child{border-right:0}.scale-dna__cell:after{content:"";pointer-events:none;background:linear-gradient(#ffffff0a,#0000 42%);position:absolute;inset:0}.scale-dna__rails{gap:3px;width:100%;display:grid}.scale-dna__rails i{background:color-mix(in srgb, var(--line) 65%, transparent);border-radius:99px;height:2px}.scale-dna__rails i:first-child.is-active{background:var(--ink-soft)}.scale-dna__rails i:last-child.is-active{background:var(--dna-comparison)}.scale-dna__cell strong{color:var(--muted-strong);align-self:end;font-size:1.05rem;font-weight:840;line-height:1}.scale-dna__cell>span{min-height:18px;color:var(--muted);font-size:.72rem;font-weight:740}.scale-dna__cell small{color:var(--muted);letter-spacing:.08em;font-size:.54rem;font-weight:760}.scale-dna__cell--shared{background:color-mix(in srgb, var(--accent) 14%, var(--surface-raised))}.scale-dna__cell--shared strong,.scale-dna__cell--shared>span{color:var(--accent-text)}.scale-dna__cell--shared .scale-dna__rails i.is-active{background:var(--accent)}.scale-dna__cell--primary{background:color-mix(in srgb, var(--ink) 8%, var(--surface-raised))}.scale-dna__cell--primary strong,.scale-dna__cell--primary>span{color:var(--ink)}.scale-dna__cell--comparison{background:color-mix(in srgb, var(--dna-comparison) 14%, var(--surface-raised))}.scale-dna__cell--comparison strong,.scale-dna__cell--comparison>span{color:color-mix(in srgb, var(--dna-comparison) 76%, var(--ink))}.scale-dna__cell--inactive strong{opacity:.58}.scale-dna__scroll-hint{color:var(--accent-text);letter-spacing:.02em;margin:8px 0 0;font-size:.62rem;font-weight:760;display:none}.scale-dna__scale-labels{justify-content:flex-end;gap:16px;margin-top:8px;display:flex}.scale-dna__scale-labels span{color:var(--muted);align-items:center;gap:6px;font-size:.62rem;font-weight:700;display:inline-flex}.scale-dna__scale-labels i{background:var(--ink-soft);border-radius:99px;width:16px;height:2px}.scale-dna__scale-labels span:last-child i{background:var(--dna-comparison)}@media (width<=900px){.scale-dna__header{grid-template-columns:1fr;align-items:start;gap:12px}.scale-dna__legend{justify-content:flex-start}}@media (width<=720px){.scale-dna{border-radius:14px;padding:14px}.scale-dna:before{left:14px;right:14px}.scale-dna__track{grid-template-columns:repeat(12,56px);min-width:672px}.scale-dna__cell{min-height:88px;padding-inline:5px}.scale-dna__scroll-hint{display:block}.scale-dna__scale-labels{justify-content:flex-start}.scale-dna__viewport{touch-action:manipulation;overscroll-behavior-x:contain;-webkit-overflow-scrolling:touch}}@media (prefers-reduced-motion:reduce){.scale-dna__viewport{scroll-behavior:auto}}.position-bridge-panel{--bridge-ease:cubic-bezier(.16, 1, .3, 1);border:1px solid var(--line);background:var(--surface-raised);box-shadow:var(--shadow);color:var(--ink);border-radius:16px;overflow:hidden}.position-bridge-panel__header{grid-template-columns:minmax(0,1fr) auto;align-items:start;gap:24px;padding:22px;display:grid}.position-bridge-panel__intro{min-width:0}.position-bridge-panel__eyebrow{color:var(--muted);font-size:var(--label-size);letter-spacing:var(--label-tracking);text-transform:uppercase;margin-bottom:10px;font-weight:500;line-height:1;display:block}.position-bridge-panel__title-row{align-items:flex-start;gap:13px;display:flex}.position-bridge-panel__title-icon{background:var(--accent);width:40px;height:40px;color:var(--accent-ink);border-radius:10px;flex:none;place-items:center;display:grid}.position-bridge-panel__title-icon svg{width:21px;height:21px}.position-bridge-panel__title-row h2,.position-bridge-panel__route-heading h3,.position-bridge-panel__practice h3{color:var(--ink);letter-spacing:-.018em;margin:0}.position-bridge-panel__title-row h2{font-size:1.08rem;font-weight:790;line-height:1.2}.position-bridge-panel__title-row p{max-width:62ch;color:var(--muted);margin:5px 0 0;font-size:.78rem;line-height:1.5}.position-bridge-panel__context{color:var(--muted);flex-wrap:wrap;align-items:center;gap:7px 12px;margin:14px 0 0 53px;font-size:.69rem;display:flex}.position-bridge-panel__context strong{color:var(--ink-soft);font-weight:740}.position-bridge-panel__context span{border-left:1px solid var(--line);padding-left:12px}.position-bridge-panel__refresh{border:1px solid var(--line);background:var(--surface);min-width:150px;min-height:52px;color:var(--ink);text-align:left;cursor:pointer;transition:transform .18s var(--bridge-ease), border-color .18s var(--bridge-ease), background-color .18s var(--bridge-ease);border-radius:10px;grid-template-rows:auto auto;grid-template-columns:auto minmax(0,1fr);align-items:center;column-gap:10px;padding:8px 13px;display:grid}.position-bridge-panel__refresh svg{width:20px;height:20px;color:var(--accent-text);grid-row:1/3}.position-bridge-panel__refresh span{white-space:nowrap;font-size:.76rem;font-weight:760;line-height:1.1}.position-bridge-panel__refresh small{color:var(--muted);white-space:nowrap;margin-top:2px;font-size:.61rem;font-weight:650;line-height:1.1}.position-bridge-panel__refresh:active{transform:scale(.98)}.position-bridge-panel__controls{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:color-mix(in srgb, var(--surface) 74%, transparent);grid-template-columns:minmax(0,1fr) minmax(0,1fr) minmax(220px,.72fr);display:grid}.position-bridge-panel__control-group{border:0;gap:10px;min-width:0;margin:0;padding:16px 18px 18px;display:grid}.position-bridge-panel__control-group+.position-bridge-panel__control-group{border-left:1px solid var(--line)}.position-bridge-panel__control-group legend{color:var(--muted-strong);padding:0;font-size:.68rem;font-weight:740;line-height:1}.position-bridge-panel__shape-options,.position-bridge-panel__length-options{grid-template-columns:repeat(3,minmax(0,1fr));gap:5px;display:grid}.position-bridge-panel__shape-options button,.position-bridge-panel__length-options button{border:1px solid var(--line);background:var(--surface-raised);min-width:0;min-height:46px;color:var(--muted-strong);cursor:pointer;transition:transform .17s var(--bridge-ease), color .17s var(--bridge-ease), border-color .17s var(--bridge-ease), background-color .17s var(--bridge-ease);border-radius:10px;align-content:center;justify-items:center;gap:3px;padding:5px 7px;display:grid}.position-bridge-panel__shape-options button strong,.position-bridge-panel__length-options button strong{text-overflow:ellipsis;white-space:nowrap;max-width:100%;font-size:.7rem;font-weight:760;line-height:1.1;overflow:hidden}.position-bridge-panel__shape-options button small,.position-bridge-panel__length-options button small{color:var(--muted);white-space:nowrap;font-size:.59rem;font-weight:660;line-height:1}.position-bridge-panel__shape-options button.is-active,.position-bridge-panel__length-options button.is-active{border-color:var(--accent);background:var(--accent);color:var(--accent-ink)}.position-bridge-panel__shape-options button.is-active small,.position-bridge-panel__length-options button.is-active small{color:color-mix(in srgb, var(--accent-ink) 72%, transparent)}.position-bridge-panel__shape-options button:disabled{color:var(--muted);cursor:not-allowed;opacity:.48;background:0 0;border-style:dashed}.position-bridge-panel__shape-options button:active:not(:disabled),.position-bridge-panel__length-options button:active{transform:scale(.97)}.position-bridge-panel__route-heading{justify-content:space-between;align-items:flex-end;gap:20px;padding:18px 20px 12px;display:flex}.position-bridge-panel__route-heading h3,.position-bridge-panel__practice h3{font-size:.82rem;font-weight:760}.position-bridge-panel__route-heading p,.position-bridge-panel__practice p{color:var(--muted);margin:4px 0 0;font-size:.68rem;line-height:1.42}.position-bridge-panel__route-heading>span{color:var(--accent-text);flex:none;font-size:.65rem;font-weight:750}.position-bridge-panel__neck-viewport{overscroll-behavior-x:contain;scrollbar-color:#6f7267 #20211c;scrollbar-width:thin;background:#171813;border:1px solid #4b4c43;border-radius:12px;margin:0 20px;overflow-x:auto}.position-bridge-panel__neck-viewport::-webkit-scrollbar{height:9px}.position-bridge-panel__sequence::-webkit-scrollbar{height:9px}.position-bridge-panel__neck-viewport::-webkit-scrollbar-track{background:color-mix(in srgb, var(--surface) 75%, transparent)}.position-bridge-panel__sequence::-webkit-scrollbar-track{background:color-mix(in srgb, var(--surface) 75%, transparent)}.position-bridge-panel__neck-viewport::-webkit-scrollbar-thumb{background:var(--line-strong);background-clip:padding-box;border:2px solid #0000;border-radius:99px}.position-bridge-panel__sequence::-webkit-scrollbar-thumb{background:var(--line-strong);background-clip:padding-box;border:2px solid #0000;border-radius:99px}.position-bridge-panel__neck{isolation:isolate}.position-bridge-panel__neck-row{grid-template-columns:64px repeat(var(--bridge-fret-columns), minmax(52px, 1fr));display:grid}.position-bridge-panel__neck-header{background:#1c1d18;border-bottom:1px solid #4b4c43;min-height:40px}.position-bridge-panel__neck-corner,.position-bridge-panel__string-label{z-index:4;color:#f3f0e8;background:#191a16;border-right:1px solid #4b4c43;place-items:center;display:grid;position:sticky;left:0}.position-bridge-panel__neck-corner{font-size:.6rem;font-weight:720}.position-bridge-panel__fret-label{color:#a9ac9f;transition:background-color .18s var(--bridge-ease);border-right:1px solid #4b4c43;place-items:center;font-size:.62rem;display:grid;position:relative}.position-bridge-panel__fret-label strong{transform:translateY(-3px)}.position-bridge-panel__fret-label small{color:var(--accent);letter-spacing:.06em;text-align:center;text-overflow:ellipsis;white-space:nowrap;font-size:.44rem;font-weight:830;line-height:1;position:absolute;bottom:2px;left:2px;right:2px;overflow:hidden}.position-bridge-panel__fret-label.is-start-zone{background:#ffffff06}.position-bridge-panel__fret-label.is-target-zone,.position-bridge-panel__fret-label.is-overlap{background:color-mix(in srgb, var(--accent) 8%, #1c1d18)}.position-bridge-panel__fret-label.is-shift-column,.position-bridge-panel__neck-cell.is-shift-column{box-shadow:inset 2px 0 0 color-mix(in srgb, var(--accent) 76%, transparent)}.position-bridge-panel__string-row{background:linear-gradient(90deg, var(--fretboard-start), var(--fretboard-end));min-height:54px}.position-bridge-panel__string-row+.position-bridge-panel__string-row{border-top:1px solid #ffffff0a}.position-bridge-panel__string-label{align-content:center;gap:2px}.position-bridge-panel__string-label strong{color:#f4f1ea;font-size:.8rem;line-height:1}.position-bridge-panel__string-label small{color:#8e9185;font-size:.5rem;line-height:1}.position-bridge-panel__neck-cell{border-right:1px solid var(--fretboard-line);min-height:54px;position:relative}.position-bridge-panel__neck-cell.is-target-zone,.position-bridge-panel__neck-cell.is-overlap{background:color-mix(in srgb, var(--accent) 4%, transparent)}.position-bridge-panel__neck-cell:before{height:var(--bridge-string-weight,1px);content:"";background:linear-gradient(#ecece4,#8b8e83);position:absolute;top:50%;left:0;right:0;transform:translateY(-50%);box-shadow:0 1px #00000057}.position-bridge-panel__node-slot{top:50%;left:calc(50% + var(--bridge-node-offset,0px));z-index:2;position:absolute;transform:translate(-50%,-50%)}.position-bridge-panel__node{color:#191a16;width:27px;height:27px;transition:transform .18s var(--bridge-ease), background-color .18s var(--bridge-ease), border-color .18s var(--bridge-ease);background:#e4e6dc;border:1px solid #f4f1ea;border-radius:50%;place-items:center;font-size:.62rem;font-weight:830;line-height:1;display:grid;box-shadow:0 2px 7px #0000004d}.position-bridge-panel__node.is-shared{border-color:var(--accent);background:linear-gradient(135deg, var(--accent) 0 50%, #e4e6dc 50% 100%)}.position-bridge-panel__node.is-target{border-color:var(--accent);background:var(--accent);color:var(--accent-ink)}.position-bridge-panel__node.is-shift{outline-offset:2px;box-shadow:0 0 0 4px var(--accent);outline:2px solid #191a16}.position-bridge-panel__node.is-active{border-color:color-mix(in srgb, var(--playing-note) 60%, white);outline:2px solid color-mix(in srgb, var(--playing-note) 58%, white);outline-offset:2px;background:var(--playing-note);color:var(--playing-note-ink);box-shadow:0 0 0 5px color-mix(in srgb, var(--playing-note) 23%, transparent)}.position-bridge-panel__sequence{overscroll-behavior-x:contain;scroll-snap-type:x proximity;scrollbar-color:var(--line-strong) transparent;scrollbar-width:thin;gap:0;margin:12px 20px 18px;padding:18px 0 6px;list-style:none;display:flex;position:relative;overflow-x:auto}.position-bridge-panel__sequence li{min-width:78px;color:var(--muted-strong);scroll-snap-align:start;flex:0 0 78px;grid-template-rows:auto auto;grid-template-columns:31px minmax(0,1fr);align-items:center;column-gap:8px;padding:4px 8px 4px 0;display:grid;position:relative}.position-bridge-panel__sequence li:after{z-index:0;content:"";background:var(--line-strong);height:1px;position:absolute;top:50%;left:30px;right:0}.position-bridge-panel__sequence li:last-child:after{display:none}.position-bridge-panel__sequence li.is-shift{margin-left:13px}.position-bridge-panel__sequence li.is-shift:before{content:"";background:var(--accent);width:2px;position:absolute;top:-10px;bottom:-4px;left:-8px}.position-bridge-panel__shift-tag{color:var(--accent-text);letter-spacing:.06em;white-space:nowrap;font-size:.47rem;font-weight:830;line-height:1;position:absolute;top:-15px;left:-3px}.position-bridge-panel__sequence-number{z-index:1;border:1px solid var(--line-strong);background:var(--surface-raised);width:31px;height:31px;color:var(--ink);transition:transform .18s var(--bridge-ease), color .18s var(--bridge-ease), border-color .18s var(--bridge-ease), background-color .18s var(--bridge-ease);border-radius:50%;grid-row:1/3;place-items:center;font-size:.67rem;font-weight:810;display:grid;position:relative}.position-bridge-panel__sequence li strong,.position-bridge-panel__sequence li small{z-index:1;background:var(--surface-raised);width:max-content;padding-right:3px;position:relative}.position-bridge-panel__sequence li strong{color:var(--ink-soft);align-self:end;font-size:.67rem;font-weight:760;line-height:1}.position-bridge-panel__sequence li small{color:var(--muted);align-self:start;margin-top:3px;font-size:.55rem;font-weight:670;line-height:1}.position-bridge-panel__sequence li.is-shift .position-bridge-panel__sequence-number{border-color:var(--accent);background:var(--accent);color:var(--accent-ink)}.position-bridge-panel__sequence li.is-active .position-bridge-panel__sequence-number{border-color:color-mix(in srgb, var(--playing-note) 58%, white);background:var(--playing-note);color:var(--playing-note-ink);box-shadow:0 0 0 4px color-mix(in srgb, var(--playing-note) 18%, transparent)}.position-bridge-panel__empty{border:1px dashed var(--line-strong);min-height:170px;color:var(--muted);text-align:left;border-radius:12px;justify-content:center;align-items:center;gap:13px;margin:20px;padding:22px;display:flex}.position-bridge-panel__empty svg{width:28px;height:28px;color:var(--accent-text);flex:none}.position-bridge-panel__empty strong{color:var(--ink);font-size:.8rem;display:block}.position-bridge-panel__empty p{margin:4px 0 0;font-size:.7rem;line-height:1.45}.position-bridge-panel__practice{border-top:1px solid var(--line);background:color-mix(in srgb, var(--surface) 42%, transparent);grid-template-columns:minmax(180px,1fr) minmax(420px,auto);align-items:center;gap:24px;padding:18px 20px 20px;display:grid}.position-bridge-panel__practice-copy{max-width:52ch}.position-bridge-panel__practice-settings{flex-wrap:wrap;gap:7px;margin-top:12px;display:flex}.position-bridge-panel__practice-settings button{border:1px solid var(--line);background:var(--surface-raised);min-width:0;min-height:44px;color:var(--ink);text-align:left;cursor:pointer;border-radius:9px;grid-template-columns:20px minmax(0,1fr);align-items:center;gap:8px;padding:7px 10px;display:grid}.position-bridge-panel__practice-settings button.is-active{border-color:color-mix(in srgb, var(--accent) 68%, var(--line));background:color-mix(in srgb, var(--accent) 11%, var(--surface-raised))}.position-bridge-panel__practice-settings svg{width:18px;height:18px;color:var(--accent-text)}.position-bridge-panel__practice-settings span{gap:2px;min-width:0;display:grid}.position-bridge-panel__practice-settings strong,.position-bridge-panel__practice-settings small{text-overflow:ellipsis;white-space:nowrap;line-height:1.15;overflow:hidden}.position-bridge-panel__practice-settings strong{font-size:.64rem}.position-bridge-panel__practice-settings small{color:var(--muted);font-size:.54rem}.position-bridge-panel__practice-actions{grid-template-columns:minmax(188px,.88fr) minmax(220px,1fr);gap:8px;display:grid}.position-bridge-panel__practice-button--groove{border-color:color-mix(in srgb, var(--accent) 52%, var(--line));grid-column:1/-1}.position-bridge-panel__practice-button{border:1px solid var(--line);background:var(--surface-raised);min-width:0;min-height:58px;color:var(--ink);text-align:left;cursor:pointer;transition:transform .18s var(--bridge-ease), color .18s var(--bridge-ease), border-color .18s var(--bridge-ease), background-color .18s var(--bridge-ease);border-radius:10px;grid-template-columns:34px minmax(0,1fr);align-items:center;gap:10px;padding:8px 12px;display:grid}.position-bridge-panel__practice-button--context,.position-bridge-panel__practice-button.is-active{border-color:var(--accent);background:var(--accent);color:var(--accent-ink)}.position-bridge-panel__practice-button:disabled{cursor:not-allowed;filter:grayscale(.6);opacity:.5}.position-bridge-panel__practice-button:active:not(:disabled){transform:scale(.985)}.position-bridge-panel__practice-icon{background:var(--surface-deep);width:34px;height:34px;color:var(--ink);border-radius:9px;place-items:center;display:grid}.position-bridge-panel__practice-button--context .position-bridge-panel__practice-icon,.position-bridge-panel__practice-button.is-active .position-bridge-panel__practice-icon{background:color-mix(in srgb, var(--accent-ink) 13%, transparent);color:var(--accent-ink)}.position-bridge-panel__practice-icon svg{width:17px;height:17px}.position-bridge-panel__practice-button>span:last-child{gap:4px;min-width:0;display:grid}.position-bridge-panel__practice-button strong,.position-bridge-panel__practice-button small{text-overflow:ellipsis;white-space:nowrap;max-width:100%;line-height:1;overflow:hidden}.position-bridge-panel__practice-button strong{font-size:.73rem;font-weight:780}.position-bridge-panel__practice-button small{color:var(--muted);font-size:.58rem;font-weight:640}.position-bridge-panel__practice-button--context small,.position-bridge-panel__practice-button.is-active small{color:color-mix(in srgb, var(--accent-ink) 70%, transparent)}.position-bridge-panel__sr-only{clip:rect(0, 0, 0, 0)!important;white-space:nowrap!important;border:0!important;width:1px!important;height:1px!important;padding:0!important;position:absolute!important;overflow:hidden!important}@media (hover:hover){.position-bridge-panel__refresh:hover,.position-bridge-panel__shape-options button:hover:not(:disabled),.position-bridge-panel__length-options button:hover,.position-bridge-panel__practice-settings button:hover,.position-bridge-panel__practice-button:hover:not(:disabled){border-color:var(--accent)}.position-bridge-panel__refresh:hover svg{transform:rotate(20deg)}}@media (prefers-reduced-motion:no-preference){.position-bridge-panel__node.is-active,.position-bridge-panel__sequence li.is-active .position-bridge-panel__sequence-number{animation:.76s ease-in-out infinite alternate position-bridge-current-note}.position-bridge-panel__refresh svg{transition:transform .24s var(--bridge-ease)}}@keyframes position-bridge-current-note{0%{transform:scale(.94)}to{transform:scale(1.07)}}@media (width<=920px){.position-bridge-panel__controls{grid-template-columns:repeat(2,minmax(0,1fr))}.position-bridge-panel__control-group--length{border-top:1px solid var(--line);grid-column:1/-1;border-left:0!important}.position-bridge-panel__practice{grid-template-columns:1fr}.position-bridge-panel__practice-copy{max-width:none}}@media (width<=680px){.position-bridge-panel__header{grid-template-columns:1fr;gap:17px;padding:18px}.position-bridge-panel__context{margin-left:0}.position-bridge-panel__refresh{width:100%}.position-bridge-panel__controls{grid-template-columns:1fr}.position-bridge-panel__control-group+.position-bridge-panel__control-group{border-top:1px solid var(--line);border-left:0}.position-bridge-panel__control-group--length{grid-column:auto}.position-bridge-panel__route-heading{align-items:flex-start;padding:16px 16px 11px}.position-bridge-panel__neck-viewport{margin:0 16px}.position-bridge-panel__sequence{margin-left:16px;margin-right:16px}.position-bridge-panel__practice{gap:14px;padding:16px}.position-bridge-panel__practice-actions{grid-template-columns:1fr}.position-bridge-panel__practice-button--groove{grid-column:auto}.position-bridge-panel__practice-settings{grid-template-columns:1fr;display:grid}}@media (width<=420px){.position-bridge-panel__title-icon{width:36px;height:36px}.position-bridge-panel__shape-options button,.position-bridge-panel__length-options button{min-height:44px;padding-inline:4px}.position-bridge-panel__route-heading{gap:7px;display:grid}}@media (prefers-reduced-motion:reduce){.position-bridge-panel *,.position-bridge-panel :before,.position-bridge-panel :after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}
