@font-face{font-family:'Nunito';font-style:normal;font-weight:400;font-display:swap;src:url('../fonts/nunito-latin-400-normal.woff2') format('woff2');}
@font-face{font-family:'Nunito';font-style:normal;font-weight:700;font-display:swap;src:url('../fonts/nunito-latin-700-normal.woff2') format('woff2');}
@font-face{font-family:'Nunito';font-style:normal;font-weight:800;font-display:swap;src:url('../fonts/nunito-latin-800-normal.woff2') format('woff2');}
@font-face{font-family:'Nunito';font-style:normal;font-weight:900;font-display:swap;src:url('../fonts/nunito-latin-900-normal.woff2') format('woff2');}
@font-face{font-family:'Noto Music'; src:url('fonts/NotoMusic-Regular.woff2') format('woff2'); font-display:swap;}
:root{
  --green:#58cc02; --green-dark:#58a700; --green-light:#d7ffb8;
  --red:#ff4b4b; --red-dark:#d33131; --red-light:#ffdfe0;
  --blue:#1cb0f6; --blue-dark:#1899d6; --blue-light:#ddf4ff;
  --yellow:#ffb800; --ink:#2a231b; --gray:#8a7d6b; --line:#e9e1d3; --bg:#faf7f1;
}
html{-webkit-text-size-adjust:100%}
body{
  margin:0; background:var(--bg); color:var(--ink);
  font-family:'Nunito',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  -webkit-tap-highlight-color:transparent; touch-action:manipulation; overscroll-behavior:none;
}
#app{
  max-width:480px; margin:0 auto; min-height:100dvh; box-sizing:border-box;
  padding:8px 20px calc(24px + env(safe-area-inset-bottom));
  display:flex; flex-direction:column;
}
/* ---------- top bars ---------- */
.topbar{display:flex; align-items:center; gap:14px; padding:12px 0 4px;}
.xbtn{background:none; border:none; font-size:24px; font-weight:900; color:#bfae96; padding:8px; cursor:pointer; line-height:1;}
.progress{flex:1; height:16px; background:var(--line); border-radius:999px; overflow:hidden;}
.progress > i{display:block; height:100%; width:0; background:var(--green); border-radius:999px; transition:width .35s ease;}
.statbar{display:flex; align-items:center; justify-content:center; gap:22px; padding:14px 0 6px; font-weight:900; font-size:16px;}
.statbar .s{display:flex; align-items:center; gap:5px;}
.s-flame{color:#ff9600;} .s-xp{color:var(--blue-dark);} .s-heart{color:var(--red);}
/* ---------- hero ---------- */
.hero{text-align:center; padding:26px 0 10px;}
.hero .mascot{font-size:76px; display:inline-block; animation:bob 2.4s ease-in-out infinite;}
@keyframes bob{0%,100%{transform:translateY(0) rotate(-4deg)}50%{transform:translateY(-10px) rotate(4deg)}}
.hero h1{font-size:30px; font-weight:900; margin:14px 0 6px;}
.hero p{color:var(--gray); font-weight:700; margin:0 0 18px; font-size:16px;}
/* ---------- buttons ---------- */
.btn{
  display:block; width:100%; box-sizing:border-box; padding:15px; margin:0;
  border-radius:16px; border:2px solid var(--line); background:#fff;
  font-family:inherit; font-weight:900; font-size:16px; letter-spacing:1px; text-transform:uppercase;
  color:var(--ink); box-shadow:0 4px 0 var(--line); cursor:pointer;
  transition:transform .06s, box-shadow .06s, background .15s;
  -webkit-user-select:none; user-select:none;
}
.btn:active{transform:translateY(4px); box-shadow:0 0 0 var(--line);}
.btn-green{background:var(--green); border-color:var(--green); color:#fff; box-shadow:0 4px 0 var(--green-dark);}
.btn-green:active{box-shadow:none;}
.btn-green:disabled{background:#efe9dd; border-color:#efe9dd; color:#c9bda6; box-shadow:0 4px 0 #e0d5c0; transform:none; cursor:default;}
.btn-red{background:var(--red); border-color:var(--red); color:#fff; box-shadow:0 4px 0 var(--red-dark);}
.btn-red:active{box-shadow:none;}
.btn-blue{background:var(--blue); border-color:var(--blue); color:#fff; box-shadow:0 4px 0 var(--blue-dark);}
.btn-blue:active{box-shadow:none;}
.btn-ghost{background:none; border:none; box-shadow:none; color:var(--blue-dark); padding:12px;}
.btn-ghost:active{transform:none; color:var(--blue);}
.foot{margin-top:auto; padding-top:8px; position:sticky; bottom:0; background:linear-gradient(transparent, #faf7f1 35%); padding-bottom:calc(10px + env(safe-area-inset-bottom));}
.foot .btn{margin-bottom:10px;}
/* ---------- level cards ---------- */
.lvl{
  display:flex; align-items:center; gap:14px; text-align:left;
  border:2px solid var(--line); border-radius:18px; padding:14px 16px; margin:0 0 12px;
  background:#fff; box-shadow:0 4px 0 var(--line); cursor:pointer; width:100%; box-sizing:border-box;
  font-family:inherit; color:var(--ink); -webkit-user-select:none; user-select:none;
  transition:transform .06s, box-shadow .06s;
}
.lvl:active{transform:translateY(4px); box-shadow:none;}
.lvl.locked{opacity:.55;}
.lvl-ic{font-size:36px; line-height:1;}
.lvl-tx{flex:1;}
.lvl-tx b{display:block; font-size:17px; font-weight:900;}
.lvl-tx span{color:var(--gray); font-weight:700; font-size:14px;}
.stars{font-size:15px; letter-spacing:2px; color:#ddd2bd; margin-top:2px;}
.stars .on{color:var(--yellow);}
.section-t{font-size:20px; font-weight:900; margin:22px 0 12px;}
.tip{color:var(--gray); font-size:13px; font-weight:700; text-align:center; margin-top:16px;}
/* ---------- quiz ---------- */
.q-prompt{font-size:20px; font-weight:900; margin:8px 0 2px;}
.q-hint{color:var(--gray); font-weight:700; font-size:14px; margin:0 0 6px;}
.staff{width:100%; max-width:340px; height:auto; display:block; margin:2px auto;}
.staff-line{stroke:#c9bda6; stroke-width:2;}
.ledger{stroke:var(--ink); stroke-width:2.5;}
.stem{stroke:var(--ink); stroke-width:3.5; stroke-linecap:round;}
.notehead{fill:var(--ink);}
.clef{font-size:80px; fill:var(--ink); font-family:'Noto Music',serif;}
.acc{font-size:46px; font-weight:700; fill:var(--ink); font-family:'Noto Music',serif;}
.listenrow{display:flex; justify-content:center; margin:2px 0 6px;}
.staffrow{display:flex; align-items:center; gap:10px; margin:2px 0;}
.staffrow .staff{flex:1; min-width:0; margin:2px 0;}
.hearbtn{flex:none; width:54px; height:54px; border-radius:50%; border:none; background:#fff;
  box-shadow:0 3px 0 #e5e5e5; font-size:24px; cursor:pointer; -webkit-tap-highlight-color:transparent;}
.hearbtn:active{transform:translateY(2px); box-shadow:0 1px 0 #e5e5e5;}
.listen{
  display:inline-flex; align-items:center; gap:8px; border:2px solid var(--line); background:#fff;
  border-radius:999px; padding:9px 20px; font-family:inherit; font-weight:900; font-size:15px; color:var(--blue-dark);
  box-shadow:0 3px 0 var(--line); cursor:pointer; -webkit-user-select:none; user-select:none;
}
.listen:active{transform:translateY(3px); box-shadow:none;}
.opts{display:grid; grid-template-columns:1fr 1fr; gap:12px; margin-top:4px;}
.opt{
  padding:18px 8px; border-radius:16px; border:2px solid var(--line); background:#fff;
  font-family:inherit; font-weight:900; font-size:24px; color:var(--ink);
  box-shadow:0 4px 0 var(--line); cursor:pointer; -webkit-user-select:none; user-select:none;
  transition:transform .06s, box-shadow .06s, background .12s, border-color .12s;
}
.opt:active{transform:translateY(4px); box-shadow:none;}
.opt.sel{border-color:var(--blue); color:var(--blue); background:var(--blue-light); box-shadow:0 4px 0 var(--blue);}
.opt.right{border-color:var(--green); color:var(--green-dark); background:var(--green-light); box-shadow:0 4px 0 var(--green); animation:pop .35s;}
.opt.wrong{border-color:var(--red); color:var(--red-dark); background:var(--red-light); box-shadow:0 4px 0 var(--red); animation:shake .4s;}
@keyframes pop{0%{transform:scale(1)}40%{transform:scale(1.08)}100%{transform:scale(1)}}
@keyframes shake{0%,100%{transform:translateX(0)}25%{transform:translateX(-7px)}50%{transform:translateX(7px)}75%{transform:translateX(-4px)}}
/* ---------- feedback sheet ---------- */
.sheet{
  position:fixed; left:0; right:0; bottom:0; z-index:60; max-width:480px; margin:0 auto;
  transform:translateY(110%); transition:transform .28s ease;
  padding:20px 20px calc(20px + env(safe-area-inset-bottom));
  border-top:2px solid var(--line); background:#fff; box-sizing:border-box;
}
.sheet.show{transform:none;}
.sheet.good{background:var(--green-light); border-top-color:var(--green);}
.sheet.bad{background:var(--red-light); border-top-color:var(--red);}
.sheet-title{font-size:22px; font-weight:900; margin-bottom:4px;}
.sheet.good .sheet-title{color:var(--green-dark);}
.sheet.bad .sheet-title{color:var(--red-dark);}
.sheet-sub{font-weight:700; color:var(--ink); margin-bottom:16px; font-size:16px;}
/* ---------- results ---------- */
.result{text-align:center; padding-top:34px;}
.result .big{font-size:84px; animation:pop .5s;}
.result h2{font-size:26px; font-weight:900; margin:12px 0 4px;}
.result .sub{color:var(--gray); font-weight:700; margin:0 0 18px;}
.statgrid{display:flex; gap:12px; margin:0 0 8px;}
.statcard{flex:1; border:2px solid var(--line); border-radius:16px; padding:14px 6px; box-shadow:0 3px 0 var(--line);}
.statcard b{display:block; font-size:20px; font-weight:900;}
.statcard span{font-size:12px; font-weight:800; color:var(--gray); text-transform:uppercase; letter-spacing:.6px;}
.bigstars{font-size:40px; letter-spacing:6px; color:#ddd2bd; margin:6px 0 2px;}
.bigstars .on{color:var(--yellow);}
/* ---------- chart ---------- */
.backrow{display:flex; align-items:center; gap:8px; padding:12px 0 0;}
.back{background:none; border:none; font-size:30px; font-weight:900; color:#bfae96; cursor:pointer; padding:4px 10px 4px 0; line-height:1;}
.chart-grid{display:grid; grid-template-columns:1fr 1fr; gap:12px;}
.ncard{border:2px solid var(--line); border-radius:16px; padding:8px 8px 4px; background:#fff; box-shadow:0 3px 0 var(--line); cursor:pointer; text-align:center; -webkit-user-select:none; user-select:none;}
.ncard:active{transform:translateY(3px); box-shadow:none;}
.ncard b{font-size:20px; font-weight:900;}
.ncard .staff{margin:0;}
/* ---------- confetti ---------- */
#confetti{position:fixed; inset:0; pointer-events:none; z-index:99; overflow:hidden;}
.cf{position:absolute; top:-16px; width:10px; height:14px; border-radius:2px; animation:fall 2.8s ease-in forwards;}
@keyframes fall{to{transform:translateY(112vh) rotate(720deg);}}
/* ---------- print ---------- */
.printbtn{background:#fff; border:2px solid var(--line); border-radius:12px; font-size:20px;
  width:46px; height:46px; cursor:pointer; box-shadow:0 3px 0 var(--line); flex:none;}
.printbtn:active{transform:translateY(3px); box-shadow:none;}
.print-lvtitle{font-size:22px; font-weight:900; margin:20px 0 12px;}
.print-grid{display:grid; grid-template-columns:1fr 1fr; gap:14px;}
.pcard{border:2px solid #2a231b; border-radius:12px; padding:10px 8px; background:#fff;
  text-align:center; break-inside:avoid;}
.pcard-name{font-size:24px; font-weight:900; margin-bottom:2px;}
.pcard .staff{max-width:165px; margin:0 auto;}
.pcard .fb{max-width:145px; margin:0 auto;}
.print-spot circle.dot{fill:#fff; stroke:#2a231b; stroke-width:3.5;}
.print-sectitle{font-size:26px; font-weight:900; margin:4px 0 2px;}
.wq-row{display:flex; align-items:center; gap:10px; padding:12px 4px;
  border-bottom:1px solid var(--line); break-inside:avoid;}
.wq-num{font-size:20px; font-weight:900; width:32px; flex:none; color:var(--ink);}
.wq-staff{flex:1.3; min-width:0;}
.wq-staff .staff{max-width:330px;}
.wq-board{flex:1; min-width:0; text-align:center;}
.wq-board .fb{max-width:200px;}
@media print{
  *{-webkit-print-color-adjust:economy; print-color-adjust:economy;}
  .noprint{display:none !important;}
  body{background:#fff;}
  #app{max-width:100%; padding:0; min-height:auto; display:block;}
  .print-lvtitle{margin:0 0 10px; font-size:20px;}
  .print-level{break-before:page;}
  .print-level:first-child{break-before:avoid;}
  .print-grid{gap:10px;}
  .pcard{box-shadow:none; border-width:1.5px;}
  .wq-row{padding:10px 0;}
  .wq-staff .staff{max-width:360px;}
  .wq-board .fb{max-width:230px;}
  @page{margin:0.4in;}
}
/* ---------- fingerboard ---------- */
.fb{width:100%; max-width:min(400px,96vw); height:auto; display:block; margin:4px auto; touch-action:manipulation;}
.fb-str{font-size:16px; font-weight:900; fill:#a89a86;}
.fb-fnum{font-size:14px; font-weight:800; fill:#b3a48f;}
.spot{cursor:pointer; -webkit-user-select:none; user-select:none;}
.spot circle.dot{fill:#fffdf6; stroke:#b8a88f; stroke-width:2; transform-box:fill-box; transform-origin:center; transition:transform .08s;}
.spot:active circle.dot{transform:scale(.9);}
.spot.sel circle.dot{fill:var(--blue); stroke:var(--blue-dark);}
.spot.right circle.dot{fill:var(--green); stroke:var(--green-dark); animation:pop .35s;}
.spot.wrong circle.dot{fill:var(--red); stroke:var(--red-dark); animation:shake .4s;}
.fb-halfline{stroke:#b3a48f; stroke-width:2;}
.fb-half{font-size:12px; font-weight:800; fill:#b3a48f;}
.fb-lab{font-size:13px; font-weight:900; fill:#2a231b; pointer-events:none;}

/* ---------- melodies ---------- */
.mel-title{font-size:22px; font-weight:900; text-align:center; margin:6px 0 2px; color:var(--ink);}
.mchips{display:flex; gap:6px; overflow-x:auto; padding:10px 4px; margin:2px -4px 0; scrollbar-width:thin;}
.mchip{flex:none; padding:8px 6px; border-radius:10px; background:#fff; border:2px solid var(--line);
  font-weight:800; font-size:15px; text-align:center; color:var(--ink); transition:transform .15s, background .15s, opacity .15s;}
.mchip.done{opacity:.38; background:#e7f6df; border-color:#cfe6c2;}
.mchip.cur{border-color:var(--green); background:#eef9e5; transform:scale(1.12); box-shadow:0 3px 0 var(--green);}
.hearbtn{width:46px; height:46px; border-radius:50%; background:#fff; border:2px solid var(--line);
  font-size:16px; box-shadow:0 3px 0 var(--line); flex:none; cursor:pointer; color:var(--ink);}
.hearbtn:active{transform:translateY(3px); box-shadow:none;}
.hearbtn.playing{background:#eef9e5; border-color:var(--green); color:var(--green-dark);}

/* ---------- sound test ---------- */
.sndtest{background:none; border:none; color:var(--gray); font-size:14px; font-weight:700;
  margin-top:8px; cursor:pointer; padding:6px 12px;}
.sndstat{font-size:13px; color:var(--gray); min-height:20px; margin-top:2px;
  text-align:center; padding:0 28px;}

/* ---------- piano ---------- */
.midirow{margin:2px 0 4px;}
.midirow .btn{margin-bottom:6px;}
.pkeys{position:relative; display:flex; height:168px; margin:8px auto 4px; max-width:430px;
  touch-action:manipulation; -webkit-user-select:none; user-select:none;}
.pk-white{flex:1; background:#fff; border:2px solid var(--line); border-radius:0 0 12px 12px;
  margin:0 -1px; cursor:pointer; display:flex; align-items:flex-end; justify-content:center;
  padding-bottom:10px; font-weight:900; color:var(--gray); box-shadow:0 4px 0 var(--line);}
.pk-white:active{transform:translateY(2px); box-shadow:0 1px 0 var(--line);}
.pk-black{position:absolute; top:0; width:9%; height:96px; background:#2a231b; border-radius:0 0 8px 8px;
  z-index:2; cursor:pointer; display:flex; align-items:flex-end; justify-content:center;
  padding-bottom:8px; color:#cfc4b2; font-size:12px; font-weight:800;}
.pk-white.right{background:var(--green-light); border-color:var(--green);}
.pk-black.right{background:#2f7a1e;}
.pk-white.wrong{background:var(--red-light); border-color:var(--red); animation:shake .4s;}
.pk-black.wrong{background:#a02a2a; animation:shake .4s;}

/* ---------- audio-failure toast ---------- */
.toast{position:fixed; left:50%; bottom:26px; transform:translateX(-50%) translateY(20px);
  background:#1c1c1e; color:#fff; padding:10px 16px; border-radius:14px; font-size:14px;
  max-width:86vw; text-align:center; opacity:0; transition:opacity .25s, transform .25s;
  z-index:99; box-shadow:0 4px 16px rgba(0,0,0,.25); cursor:pointer;}
.toast.show{opacity:1; transform:translateX(-50%) translateY(0);}

.hub-link{display:inline-block; font-weight:900; font-size:15px; color:#bfae96; text-decoration:none; padding:10px 2px 0;}
.hub-link:active{color:#8a7d6b;}

/* ---------- curriculum picker ---------- */
.curchips{display:flex; gap:8px; overflow-x:auto; padding:2px 2px 12px; margin:0 -2px; -webkit-overflow-scrolling:touch; scrollbar-width:none;}
.curchips::-webkit-scrollbar{display:none;}
.curchip{flex:0 0 auto; border:2px solid var(--line); background:#fff; border-radius:999px; padding:8px 14px; font-family:inherit; font-weight:800; font-size:14px; color:var(--ink); cursor:pointer; -webkit-user-select:none; user-select:none;}
.curchip.on{background:var(--ink); border-color:var(--ink); color:#fff;}
.curdesc{color:var(--gray); font-weight:700; font-size:14px; margin:0 0 12px;}
.lvl-num{flex:0 0 auto; width:34px; height:34px; border-radius:50%; background:var(--green); color:#fff; font-weight:900; font-size:16px; display:flex; align-items:center; justify-content:center;}