@import url('https://fonts.googleapis.com/css2?family=Golos+Text:wght@400;500;600;700;800&display=swap');
:root{--bg:#f6f5f1;--ink:#252a27;--muted:#858780;--green:#597151;--lime:#e5edce;--line:#e5e5dd;--white:#fff;--orange:#c78945}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:14px 'Golos Text',Arial,sans-serif}button,a,input{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:focus-visible,a:focus-visible{outline:3px solid #a9be90;outline-offset:4px}button{border:0}a{color:inherit;text-decoration:none}.layout{display:grid;grid-template-columns:228px 1fr;min-height:100vh}.sidebar{background:#efefe8;border-right:1px solid var(--line);padding:38px 22px;position:fixed;width:228px;height:100vh;display:flex;flex-direction:column}.brand{font-size:31px;letter-spacing:-1.5px;font-weight:700;display:flex;gap:10px;align-items:center;margin:0 18px 46px}.brand-mark{display:grid;place-items:center;background:var(--green);color:#fff;width:35px;height:37px;border-radius:10px;font-size:28px;transform:rotate(-8deg)}.nav{display:flex;flex-direction:column;gap:8px}.nav button{display:flex;align-items:center;gap:13px;background:none;color:#71766b;text-align:left;padding:14px 17px;border-radius:10px;font-weight:500}.nav button.active{background:#dfe6d4;color:#465b3e}.icon{width:21px;height:21px;display:inline-flex;align-items:center;justify-content:center}.icon svg{width:21px;height:21px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}.sidebar-bottom{margin-top:auto}.little-piano{padding:22px 16px 24px;border-top:1px solid #dbded2;color:#777e70;font-size:12px;line-height:1.7}.profile{display:flex;gap:10px;align-items:center;padding:14px 12px 0;border-top:1px solid #dbded2}.avatar{width:35px;height:35px;border-radius:50%;background:#dfdccb;display:grid;place-items:center;font-size:17px}.profile strong{font-size:12px;display:block}.profile small{color:var(--muted);font-size:10px}.main{grid-column:2;padding:0 48px 50px;max-width:1500px;width:100%;margin:auto}.topbar{height:91px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-size:12px;color:#787d73}.topstats{display:flex;align-items:center;gap:27px}.topstats span{display:flex;align-items:center;gap:7px}.topstats b{color:var(--ink);font-size:13px}.streak{color:#c78843}.dot{width:7px;height:7px;background:#7c9568;border-radius:50%}.pagehead{display:flex;align-items:center;justify-content:space-between;margin:34px 0 26px}h1{font-size:29px;letter-spacing:-1.1px;font-weight:600;margin:0 0 10px}h2{font-size:19px;letter-spacing:-.4px;font-weight:600;margin:0}p{line-height:1.65}.subtitle{color:var(--muted);margin:0;font-size:13px}.pill{border:1px solid #dddfd4;padding:9px 13px;border-radius:20px;color:#6d7565;font-size:11px}.dashboard{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:25px}.hero{background:var(--lime);border:1px solid #dce5c6;border-radius:16px;padding:29px 30px;min-height:239px;position:relative;overflow:hidden;display:flex;align-items:center}.hero-copy{position:relative;z-index:1;width:66%}.eyebrow{text-transform:uppercase;letter-spacing:1.6px;font-size:9px;font-weight:600;color:#778769;margin-bottom:15px;display:flex;align-items:center;gap:7px}.hero h2{font-size:28px;line-height:1.25;font-weight:600;letter-spacing:-1px}.hero p{font-size:12px;color:#7b856f;max-width:265px;margin:13px 0 22px}.primary{background:var(--green);color:#fff;padding:13px 19px;border-radius:8px;font-size:12px;font-weight:500;display:inline-flex;align-items:center;justify-content:center;gap:20px}.primary:hover{background:#445e3e}.hero-art{position:absolute;right:9px;top:16px;width:230px;height:230px;transform:rotate(-12deg);opacity:.9}.hero-art .orbit{position:absolute;border:1px solid #c6d3ac;border-radius:50%;width:210px;height:210px;left:20px;top:0}.hero-art .orbit.second{width:165px;height:165px;left:42px;top:22px}.music-note{position:absolute;right:55px;top:0;font:190px Georgia,serif;color:#526945;text-shadow:4px 7px 0 #c3cfae}.spark{position:absolute;color:#8d9e73;font-size:28px;right:10px;top:30px}.spark.bottom{top:170px;right:170px;font-size:20px}.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:18px}.metric{border:1px solid var(--line);background:#fcfcf9;padding:18px;border-radius:12px}.metric small{font-size:11px;color:var(--muted)}.metric-value{font-size:26px;margin:11px 0 5px;letter-spacing:-1px}.metric-value span{font-size:12px;color:var(--muted);letter-spacing:0}.metric-caption{font-size:10px;color:#89937b}.section-title{display:flex;align-items:center;justify-content:space-between;margin:31px 0 17px}.text-button{background:none;color:#7a8371;font-size:11px;padding:5px}.text-button:hover{color:var(--green)}.lesson-list{display:grid;gap:10px}.lesson{display:flex;align-items:center;gap:17px;border:1px solid var(--line);background:#fcfcf9;padding:18px;border-radius:12px;position:relative;text-align:left;width:100%;color:inherit;transition:transform .15s,border-color .15s}.lesson:hover{transform:translateY(-2px);border-color:#acb99a}.lesson.current{border-color:#aaba97;background:#f8faf2}.lesson-symbol{height:48px;width:48px;flex-shrink:0;border-radius:11px;display:grid;place-items:center;font:36px Georgia;background:#edf0e5;color:#627555}.lesson:nth-child(2) .lesson-symbol{background:#f0ede4;color:#9d8e70}.lesson:nth-child(3) .lesson-symbol{background:#e9edf0;color:#7a8d97}.lesson:nth-child(4) .lesson-symbol{background:#eee9ef;color:#9c87a3}.lesson-info{flex:1}.lesson-info h3{font-size:13px;font-weight:500;margin:0 0 7px}.lesson-info p{font-size:10px;color:#92968c;margin:0}.tag{display:inline-block;font-size:8px;background:#e8eddf;color:#758467;border-radius:4px;padding:3px 6px;margin-left:8px;vertical-align:middle}.lesson-arrow{color:#9da58f;padding:8px}.lesson-progress{width:64px;font-size:10px;color:#819071;text-align:right}.mini-bar{height:4px;background:#e6e9df;border-radius:6px;margin-top:7px}.mini-bar i{display:block;background:#90a477;height:100%;border-radius:6px}.rightcol{display:flex;flex-direction:column;gap:18px}.panel{border:1px solid var(--line);background:#fcfcf9;border-radius:14px;padding:22px}.panel h2{font-size:14px}.goal-title{display:flex;justify-content:space-between;align-items:center}.goal-title span{font-size:14px;color:#a3aa94}.ring{width:127px;height:127px;margin:23px auto 18px;border-radius:50%;background:conic-gradient(#84986a var(--progress),#eceee4 0);display:grid;place-items:center;transform:rotate(-5deg)}.ring-inner{width:108px;height:108px;border-radius:50%;background:#fcfcf9;display:flex;flex-direction:column;align-items:center;justify-content:center;transform:rotate(5deg)}.ring-inner strong{font-size:28px;font-weight:500;letter-spacing:-1px}.ring-inner small{font-size:10px;color:var(--muted);margin-top:6px}.goal-text{text-align:center;font-size:11px;color:#8b9083;line-height:1.6}.week{display:flex;justify-content:space-between;margin-top:22px}.day{font-size:9px;color:#8f9487;text-align:center}.day i{display:grid;place-items:center;width:23px;height:23px;border-radius:50%;background:#f0f1ea;font-style:normal;margin-top:9px;font-size:10px}.day.done i{background:#e1e9d2;color:#60774f}.day.today i{border:1px solid #81956c;color:#60774f}.repeat-panel{background:#f0eee5;border-color:#e6e1d4}.repeat-panel .eyebrow{color:#a39373;margin-bottom:11px}.repeat-panel h2{line-height:1.5;font-size:16px}.repeat-panel p{font-size:11px;color:#969080;margin:9px 0 19px}.secondary{border:1px solid #d6d4c6;background:transparent;border-radius:7px;padding:11px 13px;font-size:11px;color:#747b66;width:100%;display:flex;justify-content:space-between}.tip{padding:5px 12px;color:#8b9180;font-size:11px;line-height:1.8}.tip strong{font-size:10px;display:block;margin-bottom:7px;color:#7b856d}.footer-note{text-align:center;font-size:10px;color:#a0a395;margin-top:27px;letter-spacing:.2px}.mobile-brand{display:none}.training{max-width:810px;margin:30px auto}.training-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.progress{height:7px;background:#e6e9dc;border-radius:9px;overflow:hidden;flex:1;margin:0 25px}.progress i{display:block;background:#8ba472;height:100%;transition:width .3s}.training-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:32px;text-align:center}.training-card h1{font-size:25px}.staff{width:100%;height:220px;max-width:550px;display:block;margin:auto}.staff line{stroke:#9da397;stroke-width:1}.staff .ledger{stroke:#606b59;stroke-width:1.4}.staff text{fill:#394732}.staff ellipse{fill:#394732}.piano{display:flex;position:relative;max-width:560px;margin:24px auto 13px;height:143px}.key{position:relative;flex:1;border:1px solid #d8dcd2;border-bottom:4px solid #d8dcd2;background:#fafbf6;border-radius:0 0 7px 7px;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;padding:15px 0 12px;gap:8px;color:#626b58}.key:hover{background:#e7eedc}.key.selected{background:#dce9c9}.key small{font-size:9px;color:#9ba28f}.black-key{position:absolute;width:8%;height:88px;background:#3b4239;border-radius:0 0 4px 4px;top:0;z-index:2;pointer-events:none;border-bottom:4px solid #252b24}.feedback{min-height:54px;border-radius:9px;padding:15px;margin:17px 0;color:#7f8874;font-size:13px;background:#f5f6f1}.feedback.correct{background:#e8f0dc;color:#4c6c3b}.feedback.wrong{background:#f7e9e0;color:#9a6644}.train-actions{display:flex;gap:14px;justify-content:center;align-items:center}.train-actions button{min-width:140px}.hint{font-size:11px;color:#959b8c;margin-top:20px}.note-chips{display:flex;gap:8px;flex-wrap:wrap;justify-content:center}.note-chip{border:1px solid var(--line);background:#f7f8f2;border-radius:7px;padding:9px 13px;color:#65745c;font-size:12px}.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.note-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px}.note-tile{padding:19px;background:#fcfcf9;border:1px solid var(--line);border-radius:11px}.note-tile h3{margin:0 0 10px;font-size:15px}.note-tile p{font-size:11px;color:var(--muted)}.bars{display:flex;align-items:end;gap:20px;height:160px;padding-top:25px}.bar-column{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:end;height:100%;gap:10px;font-size:10px;color:var(--muted)}.bar-column i{width:100%;max-width:45px;background:#bdcca9;border-radius:5px 5px 0 0;min-height:3px}.result-symbol{font-size:55px;color:#7f9767;margin:15px}.result-metrics{display:flex;justify-content:center;gap:35px;margin:30px 0}.result-metrics strong{display:block;font-size:27px;font-weight:500}.result-metrics small{font-size:11px;color:var(--muted)}.settings-row{display:flex;align-items:center;justify-content:space-between;padding:22px 0;border-bottom:1px solid var(--line)}.settings-row p{color:var(--muted);font-size:11px;margin:6px 0}.toggle{background:#e5e8df;border-radius:20px;padding:5px;width:47px;height:27px}.toggle i{display:block;width:17px;height:17px;background:#fff;border-radius:50%;transition:transform .2s}.toggle.on{background:var(--green)}.toggle.on i{transform:translateX(20px)}.empty{padding:40px;text-align:center;color:#8c9581}#toast{position:fixed;bottom:25px;left:50%;transform:translateX(-50%);background:#35452e;color:white;border-radius:10px;padding:13px 20px;opacity:0;pointer-events:none;transition:opacity .2s;z-index:10;font-size:12px}#toast.visible{opacity:1}.about-copy{max-width:620px;color:#808975;font-size:13px}.danger{color:#ac705c}.button-row{display:flex;gap:10px}.info-box{background:#eff3e8;border-radius:10px;padding:18px;margin:20px 0;color:#768367;font-size:12px;line-height:1.8}@media(min-width:1450px){.main{padding-left:64px;padding-right:64px}.dashboard{grid-template-columns:minmax(0,1fr) 300px}.hero{min-height:255px}}@media(max-width:1150px){.sidebar{width:190px;padding-left:14px;padding-right:14px}.layout{grid-template-columns:190px 1fr}.main{padding:0 27px 35px}.dashboard{grid-template-columns:minmax(0,1fr) 235px;gap:18px}.hero{padding:25px}.hero-art{right:-55px;opacity:.65}.hero h2{font-size:26px}.panel{padding:19px}.brand{margin-left:14px}}@media(max-width:900px){.dashboard{grid-template-columns:1fr}.rightcol{display:grid;grid-template-columns:1fr 1fr;align-items:start}.tip{display:none}.hero-art{right:20px;opacity:.9}.hero-copy{width:65%}.goal-panel{grid-row:span 2}.ring{margin:16px auto}.week{margin-top:15px}.topstats{gap:15px}.pill{display:none}}@media(max-width:650px){.layout{display:block}.sidebar{position:fixed;bottom:0;top:auto;height:68px;width:100%;padding:5px 12px;z-index:5;border-right:0;border-top:1px solid var(--line);background:#f8f8f1}.brand,.sidebar-bottom{display:none}.nav{flex-direction:row;justify-content:space-around;gap:0}.nav button{flex-direction:column;gap:5px;font-size:9px;padding:8px 13px;background:none!important}.nav button.active{color:#48643c}.main{padding:0 20px 95px}.topbar{height:72px}.topbar>span{display:none}.mobile-brand{display:block;font-size:24px;font-weight:600;color:var(--green);letter-spacing:-1px}.topstats{gap:14px;font-size:10px}.topstats span:last-child{display:none}.topstats b{font-size:11px}.pagehead{margin:27px 0 22px}h1{font-size:25px}.subtitle{font-size:11px}.hero{min-height:239px;padding:24px}.hero h2{font-size:26px}.hero-copy{width:75%}.hero-art{right:-57px;top:30px;opacity:.55}.hero p{max-width:215px}.metrics{gap:8px;margin-top:12px}.metric{padding:14px 10px}.metric small{font-size:9px}.metric-value{font-size:23px}.metric-caption{font-size:8px}.section-title{margin-top:27px}.section-title h2{font-size:18px}.lesson{gap:12px;padding:14px 12px}.lesson-info h3{font-size:12px}.lesson-info p{font-size:9px}.lesson-symbol{width:42px;height:44px}.tag{font-size:7px;margin-left:3px}.lesson-progress{width:38px;font-size:9px}.lesson-arrow{padding:0}.rightcol{gap:12px;grid-template-columns:1fr 1fr}.panel{padding:16px}.panel h2{font-size:12px}.repeat-panel h2{font-size:14px}.repeat-panel p{font-size:10px}.repeat-panel .eyebrow{font-size:8px;letter-spacing:1px}.ring{width:105px;height:105px}.ring-inner{width:89px;height:89px}.ring-inner strong{font-size:23px}.goal-text{font-size:10px}.day i{width:18px;height:18px}.training{margin-top:22px}.training-card{padding:22px 12px}.training-card h1{font-size:21px}.staff{height:190px}.piano{height:128px}.black-key{height:76px}.key{font-size:11px}.train-actions{gap:8px}.train-actions button{min-width:120px}.stats-grid{gap:8px}.note-grid{grid-template-columns:1fr 1fr}.settings-row{gap:15px}.settings-row strong{font-size:12px}.result-metrics{gap:25px}.button-row{flex-wrap:wrap}}

[hidden]{display:none!important}button:disabled{cursor:default}.key:disabled{color:#626b58}select{border:1px solid #d6ddca;border-radius:7px;padding:9px;background:#f8faf3;color:#56674b}
@font-face{font-family:Bravura;src:url('fonts/Bravura.woff2') format('woff2');font-display:block}.music-clef{font-family:Bravura!important;font-weight:normal;font-style:normal;fill:#394732}.lesson-detail{display:inline-block;margin-top:5px;color:#6e805d}.lesson-info p{line-height:1.7}.live-progress{display:flex;gap:10px 20px;flex-wrap:wrap;justify-content:center;margin:17px 0 0;font-size:11px;color:#7f8974}.live-progress b{color:#566e47}.memory-tip{text-align:left;border:1px solid #e0e7d5;background:#f6f8ef;border-radius:10px;padding:15px 18px;margin:15px 0 20px;font-size:11px;line-height:1.7;color:#76836a}.memory-tip strong{display:block;color:#596e4b;font-size:11px;margin-bottom:5px}.memory-tip>span{display:block}.memory-tip button{padding:7px 0 0;text-decoration:underline;text-underline-offset:3px}.memory-tip p{margin-bottom:0}.map-legend{display:flex;flex-wrap:wrap;gap:10px 18px;margin-bottom:14px;font-size:10px;color:#7a8371}.map-legend span{display:flex;gap:6px;align-items:center}.map-legend i,.status-dot{width:8px;height:8px;border-radius:50%;display:inline-block}.status-dot{margin-right:8px}.map-heading{font-size:12px;font-weight:500;color:#718164;margin:23px 0 0}.map-scroll{overflow:auto}.mastery-staff{width:100%;min-width:480px;height:auto;display:block}.mastery-staff line{stroke:#a9b1a1;stroke-width:1}.mastery-staff .ledger{stroke:#6e7b62;stroke-width:1.3}.mastery-staff ellipse{fill:#394732}.map-note{cursor:pointer;outline:none}.map-note:hover>rect,.map-note:focus>rect{fill:#dfe8ce;fill-opacity:.35}.map-label{font:13px 'Golos Text',Arial;fill:#526746}.map-caption{font:9px 'Golos Text',Arial;fill:#8a927e}.map-score{font:12px 'Golos Text',Arial}.map-explanation{font-size:11px;color:#7e8972;line-height:1.8;margin-top:12px}.map-explanation summary{cursor:pointer;color:#667d54}.note-tile .staff{height:110px;margin:-10px 0 5px}.note-tile{overflow:hidden}.training-card>.staff{height:200px}.training-card .feedback{font-size:12px}.mastery-panel{margin-top:12px}.lesson-progress{min-width:52px}@media(max-width:650px){.mastery-panel{padding:14px}.mastery-staff{min-width:480px}.live-progress{font-size:10px;gap:8px 14px}.memory-tip{padding:12px;font-size:10px}.lesson-info p{font-size:9px}.training-card>.staff{height:180px}.lesson-progress{min-width:35px}.lesson-info{min-width:0}.map-legend{font-size:9px;gap:8px 12px}}