:root{
  --bg:#15120e; --panel:#201b15; --panel2:#2a231b; --line:#3a3126;
  --text:#f4ebd9; --muted:#a89b85; --accent:#ff9a3c; --accent-ink:#1a1108; --good:#3fbf6a;
  --serif:'Fraunces',Georgia,'Times New Roman',serif;
  --sans:'DM Sans',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--text);font-family:var(--sans)}
body{min-height:100vh;min-height:100dvh}
button{font:inherit;color:inherit}
h1,h2{font-family:var(--serif);font-weight:600;margin:0;letter-spacing:.01em}
.hidden{display:none!important}
@font-face{font-family:'MDMusic';src:url('/vendor/noto-music.woff2') format('woff2');font-display:block}

.btn{background:var(--panel2);border:1px solid var(--line);border-radius:10px;padding:10px 14px;cursor:pointer;min-height:44px;display:inline-flex;align-items:center;justify-content:center;gap:8px;line-height:1}
.btn:hover{border-color:#5a4b37}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);font-weight:700}
.btn:disabled{opacity:.4;cursor:default}
.btn.big{min-height:60px;padding:0 34px;font-size:1.25rem;border-radius:14px}

/* welcome screen */
#welcome{min-height:100vh;min-height:100dvh;display:grid;place-items:center;padding:24px 16px}
.card{max-width:520px;width:100%;text-align:center;display:grid;gap:16px;justify-items:center}
.hero{width:min(280px,80vw);height:auto}
.card h1{font-size:clamp(2rem,8vw,2.8rem)}
.card p{margin:0;line-height:1.55;color:var(--muted)}
.card p.small{font-size:.88rem}
.keys{list-style:none;padding:0;margin:0;display:flex;gap:18px;flex-wrap:wrap;justify-content:center}
.keys li{display:flex;align-items:center;gap:8px}
.dot{width:14px;height:14px;border-radius:50%;display:inline-block}
.dot.good{background:var(--good)}.dot.off{background:var(--accent)}

/* tracker */
#ptrack3{position:fixed;inset:0;z-index:30;background:#0d0b09;display:flex;flex-direction:column}
#ptrack3.pt-rot{inset:auto;top:0;left:0;width:100vh;width:100dvh;height:100vw;transform-origin:top left;transform:rotate(90deg) translateY(-100%)}
#pt3Canvas{flex:1;width:100%;min-height:0;display:block;touch-action:none}
/* full screen: hide the buttons; a small note readout and a close cross float in the corners */
.pt3-fnow,.pt3-fexit{display:none}
#ptrack3.pt3-focus .pt-top{display:none}
#ptrack3.pt3-focus .pt3-fnow{display:block;position:absolute;left:calc(10px + env(safe-area-inset-left));top:calc(8px + env(safe-area-inset-top));padding:5px 10px;border-radius:999px;background:rgba(0,0,0,.55);color:#cfc4b2;font-size:.9rem;pointer-events:none;z-index:2}
#ptrack3.pt3-focus .pt3-fnow b{font-size:1.05rem;color:#fff;margin-right:4px}
#ptrack3.pt3-focus .pt3-fnow.good{color:#3fbf6a}
#ptrack3.pt3-focus .pt3-fnow.off{color:#ff9a3c}
#ptrack3.pt3-focus .pt3-fexit{display:grid;place-items:center;position:absolute;right:calc(10px + env(safe-area-inset-right));top:calc(8px + env(safe-area-inset-top));width:40px;height:40px;border-radius:50%;border:1px solid rgba(255,255,255,.25);background:rgba(0,0,0,.55);color:#fff;font-size:1.5rem;line-height:1;cursor:pointer;z-index:2;opacity:.7}
#ptrack3.pt3-focus .pt3-fexit:hover{opacity:1}
/* notes sung, on a stave */
.pt3-sheet{position:absolute;left:0;right:0;bottom:0;top:0;background:rgba(13,11,9,.97);display:flex;flex-direction:column;z-index:3}
.pt3-sheet-top{display:flex;align-items:center;gap:10px;padding:8px 14px;border-bottom:1px solid #3a3126;color:#f4ebd9}
.pt3-sheet-top span:not(.sp){color:#a89b85;font-size:.9rem}
.pt3-sheet-top .sp{flex:1}
.pt3-sheet-body{flex:1;overflow:auto;padding:12px;-webkit-overflow-scrolling:touch}
.pt3-sheet-body svg{display:block;max-width:100%;height:auto;background:#fdfaf3;border-radius:8px}
.pt3-sheet-body .sl,.pt3-sheet-body .ledger{stroke:#3a3632;stroke-width:1}
.pt3-sheet-body .ledger{stroke-width:1.3}
.pt3-sheet-body .clef,.pt3-sheet-body .acc{fill:#1d1a17;font-family:'MDMusic',serif}
.pt3-sheet-body .nhead{fill:#111}
.pt3-sheet-body .nhead.good{fill:#2e9e55}
.pt3-sheet-body .nhead.off{fill:#ef8a1f}
.pt3-sheet-body .nhead.now{stroke:#1d4ed8;stroke-width:2.2}
.pt3-sheet-empty{color:#a89b85;text-align:center;margin-top:40px}
.pt3-bubble{position:absolute;right:12px;transform:translateY(-50%);background:#fdfaf3;border-radius:24px;padding:6px 9px;box-shadow:0 8px 26px rgba(0,0,0,.55);border:3px solid #fdfaf3;z-index:2;pointer-events:none;transition:border-color .15s}
.pt3-bubble.good{border-color:#2e9e55}
.pt3-face{position:absolute;right:14px;line-height:1;z-index:2;pointer-events:none;transition:transform .15s,opacity .2s;filter:drop-shadow(0 4px 10px rgba(0,0,0,.5))}
.pt3-face svg{display:block}
.pt3-face.none{opacity:.35}
.pt3-face.good{transform:scale(1.08)}
.pt3-bubble.off{border-color:#ef8a1f}
.pt3-bubble svg{display:block;height:100%;width:auto}
.pt3-bubble .sl,.pt3-bubble .ledger{stroke:#3a3632;stroke-width:1}
.pt3-bubble .ledger{stroke-width:1.3}
.pt3-bubble .clef,.pt3-bubble .acc{fill:#1d1a17;font-family:'MDMusic',serif}
.pt3-bubble .nhead{fill:#111}
.pt3-bubble .nhead.good{fill:#2e9e55}
.pt3-bubble .nhead.off{fill:#ef8a1f}
/* tidy top bar: Record, Play back, voice, More menu, close */
.pt3-menu{position:relative}
.pt3-menu>summary{list-style:none;cursor:pointer}
.pt3-menu>summary::-webkit-details-marker{display:none}
.pt3-menu[open]>summary{border-color:#ff9a3c}
.pt3-menu-list{position:absolute;right:0;top:calc(100% + 6px);min-width:240px;background:#201b15;border:1px solid #3a3126;border-radius:12px;padding:6px;display:grid;gap:4px;z-index:10;box-shadow:0 14px 34px rgba(0,0,0,.55);max-height:70vh;overflow-y:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch;touch-action:pan-y}
.pt3-menu-list button{background:transparent;border:0;border-radius:8px;padding:10px 12px;min-height:44px;text-align:left;color:#f4ebd9;cursor:pointer;font:inherit}
.pt3-menu-list button:hover{background:#2a231b}
.pt3-menu-list button.on{background:#123a32;color:#7ff0d6}
.pt3-menu-sel{display:flex;align-items:center;gap:8px;padding:8px 12px;min-height:44px;color:#f4ebd9;flex-wrap:wrap}
.pt3-menu-sel select{background:#211c16;color:#f4ebd9;border:1px solid #3a3126;border-radius:8px;padding:6px 8px;font:inherit}
.pt3-menu-list button:disabled{opacity:.35;cursor:default}
.pt3-menu-row{display:grid;grid-template-columns:1fr 1fr;gap:4px}
.pt3-menu-row button{text-align:center;background:#2a231b}
.pt3-menu-sep{height:1px;background:#3a3126;margin:2px 6px}
.pt3-settings{position:absolute;inset:0;z-index:5;background:rgba(0,0,0,.55);display:flex;align-items:flex-start;justify-content:center;padding:14px;overflow:hidden}
.pt3-set-card{width:min(440px,100%);max-height:100%;display:flex;flex-direction:column;background:#201b15;border:1px solid #3a3126;border-radius:14px;box-shadow:0 14px 34px rgba(0,0,0,.6);color:#f4ebd9}
.pt3-set-top{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 14px;border-bottom:1px solid #3a3126;font-size:1.1rem}
.pt3-set-list{overflow-y:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch;touch-action:pan-y;padding:6px 8px 12px;display:grid;gap:4px}
.pt3-set-list button{background:transparent;border:0;border-radius:8px;padding:10px 12px;min-height:44px;text-align:left;color:#f4ebd9;cursor:pointer;font:inherit}
.pt3-set-list button:hover{background:#2a231b}
.pt3-set-list button.on{background:#123a32;color:#7ff0d6}
.pt3-set-list button:disabled{opacity:.35;cursor:default}
.pt3-set-list .pt3-menu-row button{text-align:center;background:#2a231b}
.pt3-mic{padding:4px 12px 8px}
.pt3-mic-bar{height:12px;border-radius:6px;background:#2a231b;overflow:hidden}
.pt3-mic-bar i{display:block;height:100%;width:0;background:#3fbf6a;transition:width .08s}
.pt3-mic-txt{font-size:.82rem;color:#cfc4b2;margin-top:6px;line-height:1.45}
.pt3-set-head{font-size:.78rem;text-transform:uppercase;letter-spacing:.06em;color:#a89b85;padding:10px 12px 2px}
.pt3-x{width:44px;padding:0;font-size:1.5rem;justify-content:center}
/* ---------- Sing-it-back game ---------- */
#game{position:fixed;inset:0;z-index:40;background:#0d0b09;color:#f4ebd9;display:flex;flex-direction:column;overflow-y:auto}
#ovt{position:fixed;inset:0;z-index:35;background:#0d0b09;color:#f4ebd9;display:flex;flex-direction:column}
#ovt .ov-body{flex:1;min-height:0;display:flex}
#ovSpec{flex:1;min-width:0;min-height:0;height:100%;display:block}
#ovBars{width:min(360px,34vw);height:100%;display:block;border-left:1px solid #3a3126}
#ovt .ov-help{padding:6px 16px;font-size:.92rem;color:#cfc4b2;border-bottom:1px solid #3a3126;max-height:40vh;overflow-y:auto}
#ovt .ov-help p{margin:6px 0}
#ovt .pt-msg{top:40%}
#ovt .btn.on{background:#123a32;color:#7ff0d6}
#ovKeys{flex:none;width:100%;height:clamp(70px,18vh,150px);display:block;touch-action:none}
#ovKeys.hidden{display:none}
#bface{position:fixed;inset:0;z-index:35;background:#0d0b09;color:#f4ebd9;display:flex;flex-direction:column}
.bf-stage{flex:1;min-height:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:16px;text-align:center;overflow-y:auto}
.bf-face{font-size:min(42vh,62vw);line-height:1;transition:transform .25s,filter .25s;filter:grayscale(.6) opacity(.6)}
.bf-face.happy,.bf-face.mid,.bf-face.sad{filter:none}
.bf-face.happy{transform:scale(1.04)}
.bf-word{font-family:var(--serif);font-size:clamp(1.4rem,4vw,2.2rem)}
.bf-meter{position:relative;width:min(560px,90vw);height:16px;border-radius:8px;overflow:hidden;display:flex}
.bf-zone.sad{background:#b8462f}.bf-zone.mid{background:#d9a42b}.bf-zone.happy{background:#2e9e55}
.bf-needle{position:absolute;top:-4px;bottom:-4px;width:6px;margin-left:-3px;background:#fff;border-radius:3px;box-shadow:0 0 6px rgba(0,0,0,.8);transition:left .15s,opacity .2s;opacity:0}
.bf-scale{width:min(560px,90vw);display:flex;justify-content:space-between;font-size:.85rem;color:#a89b85}
.bf-help{max-width:560px;color:#a89b85;font-size:.92rem;margin:4px 0 0}
@media (orientation:landscape) and (max-height:500px){.bf-face{font-size:38vh}.bf-help{display:none}}
.ov-rep-card{width:min(640px,100%)}
.ov-rep{display:block;padding:10px 14px 16px}
.ov-rep-empty{color:#a89b85;text-align:center;margin:30px 0}
.ov-tiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:8px}
.ov-tile{background:#2a231b;border-radius:10px;padding:8px 10px;display:flex;flex-direction:column;gap:2px}
.ov-tile span{font-size:.75rem;color:#a89b85;text-transform:uppercase;letter-spacing:.04em}
.ov-tile b{font-size:1.05rem;color:#f4ebd9}
.ov-tile small{font-size:.78rem;color:#cfc4b2}
.ov-prof{display:grid;gap:4px;padding:4px 0}
.ov-prow{display:grid;grid-template-columns:24px 1fr 56px;align-items:center;gap:8px;font-size:.85rem}
.ov-prow span{color:#a89b85;text-align:right}
.ov-pbar{height:10px;background:#2a231b;border-radius:5px;overflow:hidden}
.ov-pbar i{display:block;height:100%;border-radius:5px}
.ov-rtab{width:100%;border-collapse:collapse;font-size:.88rem}
.ov-rtab th{text-align:left;color:#a89b85;font-weight:600;font-size:.75rem;padding:4px 6px;border-bottom:1px solid #3a3126}
.ov-rtab td{padding:5px 6px;border-bottom:1px solid #2a231b}
.ov-tips{margin:4px 0 0;padding-left:20px;line-height:1.45}
.ov-tips li{margin:4px 0}
.ov-has-tip{position:relative;cursor:help;outline:none}
.ov-i{font-style:normal;color:#ffb15c;font-size:.85em;margin-left:2px}
.ov-tip{display:none;position:absolute;left:0;right:0;top:calc(100% + 4px);min-width:220px;z-index:6;background:#fdfaf3;color:#1d1a17;border-radius:10px;padding:9px 11px;font-size:.84rem;line-height:1.4;text-transform:none;letter-spacing:0;font-weight:400;box-shadow:0 8px 24px rgba(0,0,0,.55)}
.ov-tip b{color:#1d1a17;font-size:inherit}
.ov-has-tip:hover .ov-tip,.ov-has-tip:focus .ov-tip,.ov-has-tip.show .ov-tip{display:block}
@media (max-width:700px),(orientation:portrait){
  #ovt .ov-body{flex-direction:column}
  #ovSpec{height:auto;flex:1}
  #ovBars{width:100%;height:38%;flex:none;border-left:0;border-top:1px solid #3a3126}
}
.g-top{display:flex;align-items:center;gap:10px;padding:10px 14px;padding-top:calc(10px + env(safe-area-inset-top));border-bottom:1px solid #3a3126;flex-wrap:wrap}
.g-top h2{font-size:1.25rem;margin:0}
.g-score{flex:1;text-align:center;color:#a89b85;min-width:200px}
.g-score b{color:#f4ebd9;font-size:1.15rem}
.g-opts{background:#201b15;border-bottom:1px solid #3a3126;padding:14px 16px;display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px 18px}
.g-row{display:flex;flex-direction:column;gap:6px}
.g-row>label{color:#a89b85;font-size:.9rem}
.g-row select{background:#2a231b;border:1px solid #3a3126;border-radius:10px;padding:10px;min-height:44px;color:#f4ebd9;font:inherit}
.g-step{display:flex;align-items:center;gap:14px}
.g-step button{width:44px;height:44px;border-radius:10px;border:1px solid #3a3126;background:#2a231b;color:#f4ebd9;font-size:1.3rem;cursor:pointer}
.g-step b{font-size:1.5rem;min-width:26px;text-align:center}
.g-checks{display:flex;flex-wrap:wrap;gap:10px 18px}
.g-checks label,.g-chk{display:flex;align-items:center;gap:7px;cursor:pointer;color:#f4ebd9}
.g-checks input,.g-chk input{width:20px;height:20px;accent-color:#ff9a3c}
.g-wide{grid-column:1/-1}
.g-summary{color:#a89b85;text-align:center;font-size:.95rem;padding:12px 16px 0}
.g-stage{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:22px;padding:20px 16px calc(70px + env(safe-area-inset-bottom));text-align:center}
.g-status{font-family:'Fraunces',Georgia,serif;font-size:clamp(1.5rem,5vw,2.3rem);min-height:1.3em}
.g-dots{display:flex;gap:clamp(8px,2.5vw,18px);flex-wrap:wrap;justify-content:center;min-height:70px}
.g-dot{display:flex;flex-direction:column;align-items:center;gap:8px;min-width:48px}
.g-dot i{width:clamp(40px,9vw,64px);height:clamp(40px,9vw,64px);border-radius:50%;border:3px solid #5a4b37;transition:background .15s,transform .15s,border-color .15s}
.g-dot.play i{background:#4f9cf0;border-color:#4f9cf0;transform:scale(1.12)}
.g-dot.good i{background:#3fbf6a;border-color:#3fbf6a}
.g-dot.off i{background:#ef8a1f;border-color:#ef8a1f}
.g-dot.wrong i{background:#d9534f;border-color:#d9534f}
.g-dot.lgood i{background:#3fbf6a;border-color:#fff;transform:scale(1.12)}
.g-dot.loff i{background:#ef8a1f;border-color:#fff;transform:scale(1.12)}
.g-dot.lwrong i{background:#d9534f;border-color:#fff;transform:scale(1.12)}
.g-dot.miss i{border-style:dashed}
.g-dot span{font-size:.95rem;color:#f4ebd9;min-height:2.6em;line-height:1.25}
.g-dot span small{color:#a89b85;font-size:.8rem}
.g-live{min-height:1.5em;color:#a89b85;font-size:1.1rem}
.g-live b{color:#f4ebd9}
.g-btns{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}
.g-big{min-height:54px;padding:0 24px;font-size:1.1rem}
.g-msg{color:#a89b85;max-width:520px;margin:0;font-size:.92rem;line-height:1.5}
/* Help: circles placed higher or lower by pitch so the shape of the tune shows */
.g-dots.contour{align-items:flex-start}
.g-dots .g-dot{transition:margin-top .2s}
#gHelpBtn.on{border-color:#ff9a3c;color:#ff9a3c}
.voicepick{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:1.05rem}
.voicepick select{background:var(--panel2);border:1px solid var(--line);border-radius:10px;padding:10px 12px;min-height:48px;color:var(--text);font:inherit;font-size:1rem}
.pt3-sheet-top{flex-wrap:wrap}
.pt3-keylab{display:flex;align-items:center;gap:6px;color:#a89b85;font-size:.9rem}
.pt3-keylab select{background:#2a231b;border:1px solid #3a3126;border-radius:10px;padding:8px 10px;min-height:40px;color:#f4ebd9;max-width:230px}
.pt3range{background:var(--panel2);border:1px solid var(--line);border-radius:10px;padding:8px 10px;min-height:44px;font-size:.95rem;color:var(--text);max-width:220px}
#pt3Rec.recording{background:#c0392b;border-color:#c0392b;color:#fff}
#pt3Play.playing{background:#2a8f7a;border-color:#2a8f7a;color:#fff}
#ptrack3 .pt-msg{top:40%}
.pt-top{display:flex;align-items:center;gap:10px;padding:10px 14px;padding-top:calc(10px + env(safe-area-inset-top));border-bottom:1px solid var(--line);flex-wrap:wrap}
.pt-top h2{font-size:1.2rem}
.pt-now{flex:1;min-width:0;text-align:center;color:var(--muted);font-size:1.05rem}
.pt-now b{font-family:var(--serif);font-size:1.35rem;color:var(--text);margin-right:6px}
.pt-now.good{color:var(--good)}
.pt-now.off{color:var(--accent)}
.pt-btns{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}
#ptRec.recording{background:#c0392b;border-color:#c0392b;color:#fff}
#ptPlay.playing{background:#2a8f7a;border-color:#2a8f7a;color:#fff}
.pt-level{display:flex;align-items:center;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:var(--panel2)}
.pt-level span{color:var(--muted);font-size:.85rem;padding:0 10px}
.pt-level button{background:transparent;border:0;border-left:1px solid var(--line);padding:9px 12px;min-height:40px;cursor:pointer;color:var(--muted);font-weight:600}
.pt-level button[aria-pressed=true]{background:var(--good);color:#0d1f12}
.pt-hint{position:absolute;left:0;right:0;bottom:calc(10px + env(safe-area-inset-bottom));text-align:center;color:var(--muted);font-size:.9rem;pointer-events:none}
.pt-msg{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:14px 18px;max-width:90vw;text-align:center}
@media (max-width:560px){
  .pt-level span{display:none}.pt-level button{padding:8px 10px}
  .pt-btns{flex-wrap:wrap}.pt-btns .btn{padding:8px 10px;min-height:40px}
  .pt-top h2{display:none}.pt-now{order:3;flex-basis:100%}
}