:root{color-scheme:dark;--bg:#0e1115;--panel:#151a20;--line:#272d35;--text:#f0f2ee;--muted:#939ca8;--accent:#c7eed9;--red:#f24b52;--r2:#3b64ff;--green:#26d967;--yellow:#f5d632}*{box-sizing:border-box}html{background:var(--bg)}body{margin:0;background:radial-gradient(ellipse at 50% 27%,#19212855,transparent 65%),var(--bg);color:var(--text);font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;-webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer;touch-action:manipulation}button:focus-visible,a:focus-visible{outline:2px solid var(--accent);outline-offset:5px}button:disabled{cursor:default}.page{max-width:1240px;min-height:100svh;margin:0 auto;padding:0 40px;display:flex;flex-direction:column}.top{height:98px;flex:none;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);gap:16px}.brand{display:flex;align-items:center;gap:13px}.brand svg{width:36px;height:36px}.wordmark{font-size:17px;font-weight:650;letter-spacing:-.6px}.wordmark b{font-weight:350;color:#a9b4be}.brand small{display:block;color:#77828e;font-size:9px;letter-spacing:2.6px;text-transform:uppercase;margin-top:5px}.tools{display:flex;gap:6px}.iconbtn{width:42px;height:42px;border:1px solid transparent;background:transparent;border-radius:12px;color:#8d98a4;display:grid;place-items:center;transition:background .2s,color .2s}.iconbtn:hover{background:#ffffff08;color:#fff}.iconbtn.active{color:var(--accent)}.iconbtn svg{width:19px;height:19px;stroke:currentColor;stroke-width:1.6;fill:none;stroke-linecap:round;stroke-linejoin:round}.iconbtn:focus-visible{outline-offset:1px}.phase{display:flex;align-items:center;gap:10px;color:#a4aeb9;letter-spacing:1.4px;text-transform:uppercase;font-size:10px}.phase span{color:var(--accent);border:1px solid #385345;border-radius:6px;padding:5px 7px;font-size:10px;letter-spacing:0}.question{position:relative;padding:40px 0 24px;text-align:center}.eyebrow{font-size:10px;letter-spacing:2.7px;font-weight:500;color:#9ca6af;margin-bottom:16px}.ask{display:flex;align-items:center;justify-content:center;gap:24px;min-height:95px;line-height:1.08;font-size:38px;font-weight:500;letter-spacing:-1.5px}.ask .string-name{font-weight:350;font-size:clamp(24px,3.3vw,39px);color:#c0c6ca;letter-spacing:-1px}.ask .separator{height:40px;width:1px;background:#3b424b;margin:0 6px}.ask .n{font-size:clamp(65px,7.5vw,94px);font-weight:550;letter-spacing:-5px;filter:brightness(1.18)}.ask .n sub{font-size:.36em;vertical-align:baseline;letter-spacing:-1px;margin-left:3px}.stage{margin:auto 0;position:relative}.boardbox{border:1px solid #2c323a;border-radius:18px;background:linear-gradient(155deg,#181f26,#12171d 70%);box-shadow:0 22px 65px #0002,inset 0 1px #ffffff04;padding:24px 20px 8px;display:flex;justify-content:center;align-items:center;min-height:160px;overflow:hidden}.board{display:block;max-width:100%;height:auto;touch-action:manipulation;user-select:none;-webkit-user-select:none}.board.horizontal{width:100%;max-height:390px}.board.vertical{width:auto;height:min(61svh,650px);max-width:100%}.board .target{fill:transparent;cursor:pointer;outline:none}.board .target:focus-visible{fill:#ffffff13;stroke:#eaf4ed;stroke-width:2;rx:6}.board .target:hover{fill:#ffffff06}.ring{filter:drop-shadow(0 0 8px #ffffff35)}.boardmeta{display:flex;align-items:center;justify-content:space-between;margin:18px 4px 0;font-size:10px;color:#818e99;letter-spacing:.2px}.regions{display:flex;gap:17px}.regions span{display:flex;align-items:center;gap:6px}.regions i{width:5px;height:5px;border-radius:50%;background:var(--region)}.foot{color:#96a2ad;text-align:center;min-height:48px;display:flex;align-items:center;justify-content:center;line-height:1.5;font-size:12px;padding:6px 0;margin:12px 0 3px}.foot.good{color:#91e6b6}.foot.bad{color:#f0a6a8}.progressarea{margin:24px 0 0}.progresslabels{display:flex;justify-content:space-between;color:#8c98a3;font-size:10px;margin:0 0 10px;letter-spacing:.1px}.progresslabels strong{font-weight:500;color:#c3d0d9}.progress{height:3px;background:#283039;border-radius:20px;overflow:hidden}.progress span{display:block;height:100%;width:0%;background:var(--accent);border-radius:20px;transition:width .35s}.bottom{display:flex;justify-content:space-between;align-items:center;min-height:65px;margin-top:16px;border-top:1px solid #242a31;color:#697580;font-size:10px;letter-spacing:.3px}.bottom span:last-child{font-size:9px;letter-spacing:1.2px;text-transform:uppercase}.mode-tag{padding:4px 0;color:#b8c8c1;font-size:10px}.menu{padding:0;border:1px solid #354038;border-radius:22px;background:#161d22;color:var(--text);width:min(440px,calc(100% - 28px));max-height:90svh;box-shadow:0 24px 100px #0009}.menu::backdrop{background:#03070bc9;backdrop-filter:blur(8px)}.sheet{padding:26px}.sheethead{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}.sheet h2{font-size:24px;font-weight:500;letter-spacing:-.6px;margin:0}.sheet p{font-size:12px;line-height:1.6;color:#a0acb6;margin:0 0 22px}.actions{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}.actions button,.close{border:1px solid #343f47;background:#202930;color:#bdc9d0;padding:13px 10px;border-radius:10px;font-size:12px;font-weight:500;min-height:44px}.actions button.sel{border-color:#7da48e;background:#293f35;color:#def5e7}.close{display:block;width:100%;margin-top:10px}.close.primary{background:var(--accent);color:#12241c;border-color:var(--accent)}.mini{font-size:11px;color:#96a59f;text-align:center;margin-top:17px}.license{display:block;color:#7e8c94;text-align:center;font-size:10px;margin-top:18px}.fallback{padding:12px;background:#1b2b23;border:1px solid #48604f;border-radius:10px;line-height:1.5;font-size:13px}.restart{display:block;margin:8px auto;padding:11px 24px;border-radius:10px;background:var(--accent);border:0;color:#14251c;font-weight:600}.restart[hidden]{display:none}
@media(min-width:1000px) and (min-height:850px){.question{padding-top:60px}.progressarea{margin-top:34px}.stage{margin:auto 0}.boardbox{padding:35px 26px 15px}}
@media(max-width:700px){.page{padding:0 20px}.top{height:76px}.wordmark{font-size:15px}.brand{gap:9px}.brand svg{width:29px;height:29px}.brand small{font-size:8px;letter-spacing:1.8px}.phase{display:none}.tools{gap:1px}.iconbtn{width:36px;height:40px}.question{padding:25px 0 17px}.eyebrow{font-size:9px;margin-bottom:8px;letter-spacing:2px}.ask{min-height:74px;gap:17px}.ask .n{font-size:65px}.ask .string-name{font-size:26px}.ask .separator{height:30px;margin:0}.boardbox{padding:16px 3px 6px;border-radius:15px}.board.vertical{height:auto;width:100%;max-height:none}.stage{margin:0 auto;width:min(100%,390px)}.board.horizontal{min-width:0}.stage:has(.horizontal){width:100%}.boardmeta{margin:14px 2px 0;font-size:9px}.regions{gap:11px}.regions span{gap:4px}.boardmeta>span{font-size:8px}.foot{font-size:11px;margin:6px 0 0;min-height:38px}.progressarea{margin-top:17px}.bottom{min-height:52px;margin-top:16px;font-size:9px}.bottom span:last-child{font-size:8px;letter-spacing:.7px}}
@media(max-width:360px){.page{padding:0 12px}.brand small{display:none}.ask{gap:12px}.ask .n{font-size:58px}.ask .string-name{font-size:23px}.boardmeta>span{display:none}.regions{width:100%;justify-content:space-between}}
@media(orientation:landscape) and (max-height:600px){.page{padding:0 max(22px,env(safe-area-inset-left)) 0 max(22px,env(safe-area-inset-right));min-height:100svh;max-width:1100px}.top{height:46px}.brand small{display:none}.wordmark{font-size:14px}.brand svg{height:25px;width:25px}.phase{display:flex}.iconbtn{width:34px;height:34px}.question{padding:9px 0 6px}.eyebrow{font-size:8px;margin-bottom:3px}.ask{min-height:40px;gap:16px}.ask .n{font-size:40px;letter-spacing:-2px}.ask .string-name{font-size:23px}.ask .separator{height:24px}.stage{width:100%;margin:0}.boardbox{padding:0 18px;border-radius:12px}.board.horizontal{width:100%;height:47svh;max-height:260px}.board.vertical{height:auto;max-height:65svh;width:auto}.boardmeta,.bottom{display:none}.progressarea{margin-top:9px}.progresslabels{font-size:9px;margin-bottom:6px}.foot{min-height:25px;font-size:10px;margin:3px 0}.progress{height:2px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition:none!important;animation:none!important}}
/* Fixed application surface: the instrument takes all remaining viewport space. */
html,body{width:100%;height:100%;overflow:hidden;overscroll-behavior:none}
body{position:fixed;inset:0;touch-action:pinch-zoom}
.page{height:100vh;height:100dvh;height:var(--app-height,100dvh);min-height:0;width:100%;padding:env(safe-area-inset-top,0px) max(28px,env(safe-area-inset-right,0px)) max(12px,env(safe-area-inset-bottom,0px)) max(28px,env(safe-area-inset-left,0px));overflow:hidden;gap:0;touch-action:pinch-zoom}
.top{height:76px;min-height:0;flex:0 0 76px;border-color:#ffffff0b}
.question{padding:22px 0 18px;flex:0 0 auto}
.eyebrow{margin-bottom:8px}.ask{min-height:84px}.ask .n{font-size:78px}.ask .string-name{font-size:34px}
.page .stage{display:flex;flex-direction:column;flex:1 1 0;min-height:0;width:100%;max-width:none;margin:0}
.page .boardbox{position:relative;flex:1 1 0;min-height:0;padding:10px 16px 4px;border-radius:22px;border-color:#577b6d30;background:radial-gradient(ellipse at 50% 0%,#253d3a55,transparent 72%),linear-gradient(145deg,#192128,#10171c);box-shadow:inset 0 1px 0 #d3ffe513,inset 0 -1px 0 #0004,0 16px 60px #0002;overflow:hidden}
.page .board{flex:1 1 0;width:100%;height:100%;max-width:100%;max-height:100%;min-width:0;min-height:0;touch-action:pinch-zoom}
.page .boardmeta{flex:0 0 26px;margin:7px 4px 0;min-height:0;align-items:center}
.progressarea{flex:0 0 auto;margin:10px 0 0}.progresslabels{margin-bottom:7px}.progress{height:3px;background:#27343a}.progress span{box-shadow:0 0 12px #baffd673}
.foot{flex:0 0 34px;min-height:0;margin:3px 0 0;padding:0 4px;font-size:11px;line-height:1.35}
.bottom{display:none}.restart{flex:0 0 auto;margin:3px auto 0;padding:8px 18px;font-size:12px}
.menu{touch-action:pan-y;overscroll-behavior:contain;overflow-y:auto;-webkit-overflow-scrolling:touch;max-height:calc(var(--app-height,100dvh) - 24px)}
.menu .sheet{touch-action:pan-y}.board .target:active{fill:#ffffff12}.open-note{filter:drop-shadow(0 2px 6px #0005)}
@media(max-width:700px){.page{padding-left:max(14px,env(safe-area-inset-left,0px));padding-right:max(14px,env(safe-area-inset-right,0px));padding-bottom:max(8px,env(safe-area-inset-bottom,0px))}.top{height:60px;flex-basis:60px}.question{padding:14px 0 12px}.ask{min-height:65px;gap:18px}.ask .n{font-size:60px}.ask .string-name{font-size:25px}.eyebrow{font-size:9px;margin-bottom:6px}.page .boardbox{padding:2px 4px;border-radius:18px}.page .boardmeta{flex-basis:20px;margin-top:5px}.progressarea{margin-top:7px}.foot{flex-basis:30px;font-size:10px}.regions{gap:13px}}
@media(max-height:680px) and (orientation:portrait){.top{height:51px;flex-basis:51px}.question{padding:8px 0}.ask{min-height:48px}.ask .n{font-size:46px}.ask .string-name{font-size:22px}.page .boardmeta{display:none}.foot{flex-basis:26px}.progressarea{margin-top:7px}}
@media(orientation:landscape) and (max-height:600px){.page{padding-top:max(0px,env(safe-area-inset-top,0px));padding-bottom:max(5px,env(safe-area-inset-bottom,0px))}.top{height:40px;flex-basis:40px}.question{padding:4px 0 6px}.eyebrow{font-size:8px;margin-bottom:2px}.ask{min-height:36px;gap:16px}.ask .n{font-size:36px}.ask .string-name{font-size:21px}.page .boardbox{padding:0 8px;border-radius:16px}.page .boardmeta{display:none}.progressarea{margin-top:6px}.progresslabels{font-size:8px;margin-bottom:4px}.foot{flex-basis:22px;font-size:9px;margin:0}.restart{padding:4px 14px;margin-top:0;font-size:10px}}
/* Instrument-first layout: compact question, full-height board, side controls. */
.page{display:grid;grid-template-columns:minmax(0,1fr) 48px;grid-template-rows:auto minmax(0,1fr);column-gap:12px;max-width:1500px;padding: max(8px,env(safe-area-inset-top,0px)) max(12px,env(safe-area-inset-right,0px)) max(8px,env(safe-area-inset-bottom,0px)) max(12px,env(safe-area-inset-left,0px))}
.page .top{grid-column:2;grid-row:1/-1;align-self:stretch;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;gap:10px;min-height:0;height:auto;width:48px;flex:none;padding:8px 0 0;border:0;border-left:1px solid #ffffff09}
.page .brand{gap:0}.page .brand>div,.page .phase{display:none}.page .brand svg{width:30px;height:30px}.page .tools{flex-direction:column;gap:3px}.page .iconbtn{width:44px;height:44px;border-radius:12px;flex:none}.page .progressarea{width:100%;margin:0;padding:6px 0 0;display:flex;flex-direction:column;align-items:center;gap:9px;flex:1 1 0;min-height:0}.page .progresslabels{order:2;display:block;margin:0;text-align:center;flex:none;line-height:1.4}.page .progresslabels>span{display:none}.page .progresslabels strong{display:block;font-size:9px;white-space:nowrap;letter-spacing:-.3px}.page .progress{position:relative;order:1;width:4px;height:auto;min-height:25px;flex:1 1 0;border-radius:8px;background:#27343a}.page .progress span{position:absolute;bottom:0;left:0;width:100%;height:0;transition:height .35s}
.page .question{grid-column:1;grid-row:1;padding:6px 0 5px;min-width:0}.page .eyebrow{font-size:9px;letter-spacing:2px;margin-bottom:3px}.page .ask{min-height:58px;gap:18px}.page .ask .n{font-size:57px;letter-spacing:-3px}.page .ask .string-name{font-size:28px}.page .ask .separator{height:28px}.page .foot{min-height:17px;line-height:1.2;margin:2px 0 0;padding:0;font-size:10px;flex:none}.page .foot:not(.good):not(.bad):not(.note){visibility:hidden}.page .restart{margin:1px auto 3px;padding:5px 14px;font-size:11px}
.page .stage{grid-column:1;grid-row:2;display:flex;min-width:0;min-height:0;width:100%;margin:0}.page .boardbox{padding:2px 3px;border-radius:16px;width:100%;min-width:0;min-height:0}.page .board{width:100%;height:100%;min-width:0;min-height:0;max-height:100%;max-width:100%}.page .boardmeta,.page .bottom{display:none}.board .target.pressed{fill:#ffffff18}
@media(max-width:700px){.page{grid-template-columns:minmax(0,1fr) 42px;column-gap:6px;padding-left:max(7px,env(safe-area-inset-left,0px));padding-right:max(5px,env(safe-area-inset-right,0px));padding-top:max(4px,env(safe-area-inset-top,0px));padding-bottom:max(5px,env(safe-area-inset-bottom,0px))}.page .top{width:42px;gap:6px;padding-top:9px}.page .brand svg{height:25px;width:25px}.page .iconbtn{width:40px;height:42px}.page .tools{gap:1px}.page .question{padding:4px 0 3px}.page .eyebrow{font-size:8px;letter-spacing:1.6px}.page .ask{min-height:49px;gap:12px}.page .ask .n{font-size:48px;letter-spacing:-2px}.page .ask .string-name{font-size:23px}.page .ask .separator{height:24px}.page .foot{font-size:9px;min-height:16px}.page .progresslabels strong{font-size:8px}.page .boardbox{border-radius:12px;padding:1px 2px}}
@media(orientation:landscape) and (max-height:600px){.page{grid-template-columns:minmax(0,1fr) 42px;column-gap:8px}.page .top{width:42px;padding:3px 0 0;gap:3px}.page .brand{display:none}.page .tools{gap:0}.page .iconbtn{width:40px;height:40px}.page .progressarea{gap:5px;padding:4px 0 0}.page .question{padding:0 0 2px}.page .eyebrow{font-size:8px;margin:0}.page .ask{min-height:33px;gap:14px}.page .ask .n{font-size:33px;letter-spacing:-1px}.page .ask .string-name{font-size:21px}.page .ask .separator{height:22px}.page .foot{font-size:9px;min-height:13px;margin-top:1px}.page .boardbox{padding:0 2px;border-radius:12px}.page .progresslabels strong{font-size:8px}}

.page .foot{height:22px;min-height:22px;max-height:22px;overflow:hidden}.page .foot.note{color:#c6d9d0}@media(orientation:landscape) and (max-height:600px){.page .foot{height:15px;min-height:15px;max-height:15px}}
/* Answer first, then reveal the regional map. */
.page .iconbtn[hidden],.page .combo[hidden]{display:none}
.combo{flex:none;display:flex;align-items:center;justify-content:center;gap:2px;min-height:28px;width:100%;color:#8f9ba5;font-size:12px;font-variant-numeric:tabular-nums}
.combo svg{width:14px;height:17px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linejoin:round}.combo strong{font-weight:650}.combo.hot{color:#f2d69b;text-shadow:0 0 14px #ffd78766}.combo.hot svg{fill:#f2d69b22}
.page[data-outcome="hit"] .boardbox{border-color:#92d7b394;box-shadow:inset 0 0 30px #87d5a90d,0 0 20px #87d5a912;animation:hit-glow .6s ease-out}
.page[data-outcome="miss"] .boardbox{border-color:#d9959a88;box-shadow:inset 0 0 24px #d9959a09}
.reward-ring{transform-box:fill-box;transform-origin:center;animation:reward-wave 1.1s ease-out forwards}
@keyframes reward-wave{0%{opacity:.9;transform:scale(.8)}100%{opacity:0;transform:scale(1.9)}}
@keyframes hit-glow{0%{box-shadow:inset 0 0 40px #87d5a92a,0 0 24px #87d5a930}100%{box-shadow:inset 0 0 30px #87d5a90d,0 0 20px #87d5a912}}
@media(orientation:landscape) and (max-height:600px){.combo{min-height:22px;font-size:10px}.combo svg{height:14px;width:12px}.page .iconbtn{height:35px}.page .top{gap:2px}}

#replay{color:#c7eed9}#replay.awaiting{background:#294638;box-shadow:0 0 0 1px #7fbd98;animation:listen-pulse 1.5s ease-in-out infinite}#replay:disabled{opacity:.35;animation:none;box-shadow:none}.page .tools .iconbtn{flex-shrink:0}@keyframes listen-pulse{50%{box-shadow:0 0 0 3px #7fbd9833}}@media(orientation:landscape) and (max-height:400px){.page .tools .iconbtn{height:32px}}

/* Study orientation follows the phone; desktop retains the manual choice. */
.page[data-mode="free"] .ask{font-size:clamp(24px,4vw,40px);font-weight:550;letter-spacing:-1px}
.page[data-orientation="vertical"] .stage{width:min(100%,430px);justify-self:center}
@media(orientation:landscape) and (max-height:600px){.page[data-mode="free"] .ask{font-size:26px;min-height:32px}}

/* Challenge milestones keep the fretboard clear. */
.page:is([data-mode="all"],[data-mode="ear"]) .progresslabels>span{display:block;font-size:8px;line-height:1.3;color:#c7eed9;max-width:52px;overflow-wrap:anywhere;margin-bottom:4px}
.page .achievement-button{color:#b5c5bc;height:32px}
.page .achievement-button.expert{color:#f2d08a}
.milestones{position:absolute;inset:8px 0;pointer-events:none}
.milestones[hidden],.achievement-button[hidden]{display:none!important}
.milestones i{position:absolute;left:-3px;width:10px;height:10px;border:1px solid #56616b;background:#192128;border-radius:50%;transform:translateY(50%);color:#6c7b86}
.milestones i.earned{background:#c7eed9;border-color:#c7eed9;color:#c7eed9;box-shadow:0 0 8px #c7eed933}
.milestones b{position:absolute;right:13px;top:-1px;font-size:8px;font-weight:500;font-style:normal}
.page:is([data-mode="all"],[data-mode="ear"]) .progress{margin:10px 0;min-height:60px}
.achievements{max-width:420px}.achievements .sheet{max-height:85dvh;overflow:auto}
.trophy-hero{text-align:center;color:#f2d08a}.trophy-hero svg{width:64px;height:64px}
.award-list{display:grid;gap:5px}.award-row{display:flex;justify-content:space-between;align-items:center;padding:10px 13px;border:1px solid #303b41;border-radius:10px;color:#78858e;font-size:13px}
.award-row.earned{color:#c7eed9;border-color:#456b57;background:#c7eed90a}
.award-row small{font-size:10px;font-weight:400}.best-score{text-align:center;font-variant-numeric:tabular-nums}
.celebrate .trophy-hero{animation:trophy-rise .8s ease-out}
@keyframes trophy-rise{from{transform:scale(.5);opacity:0}to{transform:scale(1);opacity:1}}
@media(prefers-reduced-motion:reduce){.celebrate .trophy-hero{animation:none}}
@media(orientation:landscape) and (max-height:600px){.page:is([data-mode="all"],[data-mode="ear"]) .progresslabels>span{font-size:7px;margin-bottom:1px}.page:is([data-mode="all"],[data-mode="ear"]) .top{gap:0}.page .achievement-button{height:27px}.page:is([data-mode="all"],[data-mode="ear"]) .progress{margin:6px 0;min-height:35px}.milestones b{font-size:7px}.milestones i{height:7px;width:7px;left:-2px}.milestones b{right:10px}.achievements{max-width:540px}.achievements .trophy-hero svg{height:40px}.award-list{grid-template-columns:1fr 1fr}.award-row{padding:6px 10px}}

/* Soft light for challenge ranks; musical region colors stay unchanged. */
[data-rank="0"]{--rank-color:#ef737e;--rank-glow:#ef737e40;--rank-dim:#ef737e18;}
[data-rank="25"]{--rank-color:#f1d963;--rank-glow:#f1d96340;--rank-dim:#f1d96318;}
[data-rank="50"]{--rank-color:#ff9b53;--rank-glow:#ff9b5340;--rank-dim:#ff9b5318;}
[data-rank="75"]{--rank-color:#5ce3a1;--rank-glow:#5ce3a140;--rank-dim:#5ce3a118;}
[data-rank="102"]{--rank-color:#ba72f4;--rank-glow:#ba72f440;--rank-dim:#ba72f418;}

.page:is([data-mode="all"],[data-mode="ear"]) .progress{background:var(--rank-dim);box-shadow:0 0 7px var(--rank-dim),inset 0 0 0 1px var(--rank-glow);transition:background .4s,box-shadow .4s}
.page:is([data-mode="all"],[data-mode="ear"]) #fill{background:linear-gradient(90deg,var(--rank-color),#ffffffa6,var(--rank-color));box-shadow:0 0 6px var(--rank-glow),0 0 13px var(--rank-dim);transition:height .35s,background .4s}
.page:is([data-mode="all"],[data-mode="ear"]) .progresslabels>span{color:var(--rank-color);text-shadow:0 0 8px var(--rank-glow)}
.milestones i{border-color:var(--rank-glow);background:#182027;color:#74818b}
.milestones i.earned{background:var(--rank-color);border-color:var(--rank-color);color:var(--rank-color);box-shadow:0 0 7px var(--rank-glow)}
.award-row{border-color:var(--rank-glow)}
.award-row.earned{color:var(--rank-color);border-color:var(--rank-glow);background:linear-gradient(110deg,var(--rank-dim),transparent);box-shadow:inset 3px 0 var(--rank-color),0 0 14px var(--rank-dim)}
.award-row.earned strong{text-shadow:0 0 9px var(--rank-glow)}
.achievements .trophy-hero{color:var(--rank-color);filter:drop-shadow(0 0 7px var(--rank-glow))}
.page .achievement-button.expert{color:#ba72f4;filter:drop-shadow(0 0 5px #ba72f440)}
.board .region-lit{filter:drop-shadow(0 0 3px currentColor)}

.result-screen{max-width:420px;text-align:center;border-color:var(--rank-glow);box-shadow:0 0 38px var(--rank-dim)}
.result-screen .sheet{padding:30px 26px}.result-eyebrow{font-size:10px;letter-spacing:2px;color:#98a8b0;margin-bottom:22px}
.result-screen .trophy-hero{color:var(--rank-color);filter:drop-shadow(0 0 10px var(--rank-glow))}
.result-screen h2{font-size:32px;letter-spacing:-1px;color:var(--rank-color);text-shadow:0 0 20px var(--rank-glow);margin:16px 0 8px}
.result-screen #resultMessage{font-size:16px;line-height:1.5;color:#d1dcd6}.result-screen #resultScore{font-size:13px;color:#93a59c;margin:22px 0}
.result-screen #retryRound{background:var(--rank-color);box-shadow:0 0 20px var(--rank-glow);color:#121820}
.page:is([data-mode="all"],[data-mode="ear"]) .progress{box-shadow:0 0 10px var(--rank-glow),0 0 22px var(--rank-dim),inset 0 0 0 1px var(--rank-glow)}
.page:is([data-mode="all"],[data-mode="ear"]) #fill{box-shadow:0 0 7px var(--rank-color),0 0 17px var(--rank-glow),0 0 28px var(--rank-dim)}
.board .region-lit{filter:drop-shadow(0 0 4px currentColor) drop-shadow(0 0 8px currentColor)}
@media(orientation:landscape) and (max-height:600px){.result-screen{max-width:460px}.result-screen .sheet{padding:15px 28px}.result-eyebrow{margin-bottom:8px}.result-screen .trophy-hero svg{width:40px;height:40px}.result-screen h2{font-size:26px;margin:5px 0}.result-screen #resultMessage{font-size:14px;margin:5px 0}.result-screen #resultScore{margin:10px 0}}

.sync-status{font-size:11px;line-height:1.5;color:#93aaa0;margin:10px 0;text-align:center}
.practice-tip{margin:12px 0}.practice-tip p{font-size:12px!important;color:#a4b8ac!important;line-height:1.5}
.practice-tip button{padding:10px!important;font-size:12px!important}
.profile-screen{max-width:500px}.profile-screen .sheet{max-height:85dvh;overflow:auto}
.profile-intro{font-size:13px!important}.profile-records{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.profile-records>div{display:flex;flex-direction:column;align-items:center;background:#c7eed908;border:1px solid #c7eed928;border-radius:14px;padding:16px 8px;gap:4px}
.profile-records small{font-size:9px;letter-spacing:1px;color:#8fa69a}.profile-records strong{font-size:34px;color:#c7eed9;font-weight:550}
.profile-records span{font-size:10px;color:#87998f}.profile-screen h3{font-size:13px;font-weight:600;margin-top:22px}
.string-stats{display:grid;grid-template-columns:1fr 1fr;gap:6px}.string-stat{display:flex;justify-content:space-between;gap:5px;padding:10px;border:1px solid #33423c;border-radius:8px;font-size:11px;color:#afc5b8}.string-stat strong{font-size:10px;font-weight:400;color:#95a89d}
#profileAdvice,#profileTotals{font-size:12px;line-height:1.5;color:#a7bbaf}.profile-history{font-size:12px;color:#8fa69a}
.history-row{padding:10px 0;border-bottom:1px solid #2a3831;display:flex;justify-content:space-between;gap:12px;color:#bfcdc5}
.history-row small{color:#80988b;font-size:10px}.profile-screen a{color:#c7eed9}
@media(orientation:landscape) and (max-height:600px){.practice-tip p{font-size:10px!important;margin:4px 0}.practice-tip{margin:4px 0}.practice-tip button{padding:6px!important}.result-screen .sheet{max-height:85dvh;overflow:auto}}

/* Neutral reference light, without revealing regions or the answer fret. */
.board[data-ear-phase="reference"][data-ear-string="1"] .open-note[data-string="1"],.board[data-ear-phase="reference"][data-ear-string="2"] .open-note[data-string="2"],.board[data-ear-phase="reference"][data-ear-string="3"] .open-note[data-string="3"],.board[data-ear-phase="reference"][data-ear-string="4"] .open-note[data-string="4"],.board[data-ear-phase="reference"][data-ear-string="5"] .open-note[data-string="5"],.board[data-ear-phase="reference"][data-ear-string="6"] .open-note[data-string="6"]{stroke:#d3fff0;stroke-width:3.5;fill:#294e43;filter:drop-shadow(0 0 5px #baffdf) drop-shadow(0 0 10px #7ad7af80)}
.page .ask.listening .n{color:#d3fff0!important;text-shadow:0 0 12px #a7fbd666,0 0 26px #a7fbd622}
.input-settings{margin:20px 0;padding:16px;border:1px solid #34454d;border-radius:18px}.input-settings p{font-size:14px;line-height:1.5}.input-settings label{display:block;font-size:14px;margin:18px 0 8px}.input-settings select{width:100%;padding:12px;background:#202b32;color:#edf5f1;border:1px solid #527366;border-radius:10px;font:inherit}#micButton.active{color:#c2f4dd;filter:drop-shadow(0 0 5px #68dfab66)}[data-mode="triad"] .ask{font-size:clamp(24px,5vw,60px)}
@media(max-height:450px) and (orientation:landscape){.tools{gap:2px}.tools .iconbtn{width:30px;height:30px;min-height:30px}}
.training-hub{border:1px solid #78b99c!important;border-radius:50%!important;background:#20372d!important;box-shadow:0 0 14px #85f4b825;position:relative;overflow:visible!important}.training-hub span{position:absolute;top:100%;font-size:9px;line-height:14px;color:#c7eed9;font-weight:700}.training-section{padding:20px 0;border-bottom:1px solid #344047}.training-section>small{letter-spacing:.13em;color:#a4d8bd;font-weight:750}.training-section p,.lesson-screen p{line-height:1.6}.training-section .actions{margin-top:12px}.note-clock{display:block;width:min(100%,340px);margin:12px auto}.neighbor-cards article{padding:12px 16px;margin:10px 0;background:#1c2b2c;border:1px solid #38594c;border-radius:14px}.neighbor-cards strong{color:#c8f4db}.neighbor-cards p{margin:4px 0;font-size:15px}.lesson-screen table{border-collapse:collapse;width:100%;text-align:left;font-size:15px}.lesson-screen th,.lesson-screen td{padding:11px 9px;border-bottom:1px solid #344047}.lesson-screen select{display:block;width:100%;padding:12px;background:#203029;border:1px solid #567c67;border-radius:10px;color:#f2fff7;font:inherit;margin:12px 0}.table-scroll{overflow-x:auto}.lesson-screen button[data-interval]{min-width:42px;min-height:42px;border-radius:50%;background:#263e32;color:#ceffe3;border:1px solid #547b62}.lesson-screen [hidden]{display:none!important}
@media(max-height:550px) and (orientation:landscape){.tools{gap:5px!important}.tools .iconbtn{width:30px;height:30px;min-height:30px}.training-hub span{font-size:8px;line-height:10px}.top{gap:8px}}
.page .tools .training-hub{margin-bottom:12px}.page[data-mode="triad"] .ask .n{font-size:clamp(28px,5vw,54px);letter-spacing:-1px}
@media(orientation:landscape) and (max-height:550px){.page .tools{gap:1px!important}.page .tools .iconbtn{width:30px;height:30px;min-height:30px}.page .tools .training-hub{margin-bottom:10px}.page[data-mode="triad"] .ask .n{font-size:30px}}
.interval-guides article{background:linear-gradient(130deg,#1e3830,#17262c);border-color:#648f78}.interval-guides svg{display:block;width:100%;max-width:340px;margin:5px auto 0;overflow:visible}.interval-guides text{text-anchor:middle;fill:#bfcec6;font-family:inherit}.interval-guides .neighbor-letter{font-size:29px;font-weight:500}.interval-guides .anchor-letter{font-size:40px;font-weight:850;fill:#d3ffe5;filter:drop-shadow(0 0 6px #7ce4ab55)}.interval-sign{stroke:#b7f2ce;stroke-width:2.5;fill:none;stroke-linecap:round;stroke-linejoin:round}.interval-guides .distance-label{font-size:12px;fill:#c8dcd0}.lesson-screen h3{margin:24px 0 10px;font-size:19px;color:#d2f5e0}

/* Optional guidance stays after all study controls in the training menu. */
#menu .training-course{border-top:1px solid #3d5548;margin-top:32px;padding-top:28px;text-align:left}#menu .course-eyebrow{font-size:10px;letter-spacing:.16em;color:#b9e9d0;margin:0 0 10px}#menu .training-course h3{font-size:24px;line-height:1.2;letter-spacing:-.03em;margin:0 0 12px;font-weight:600}#menu .training-course>p{font-size:14px;line-height:1.6;color:#aebfb6}#menu .course-art-link{display:block;overflow:hidden;border-radius:14px;border:1px solid #36483f;margin:20px 0 16px}#menu .course-art-link img{display:block;width:100%;height:auto}#menu .course-buy{display:flex;align-items:center;justify-content:center;gap:14px;width:100%;padding:15px 12px;min-height:50px;background:#c7eed9;color:#13291e;border-radius:10px;text-decoration:none;font-size:15px;font-weight:650;line-height:1.4;text-align:center}#menu .training-course .course-note{font-size:11px;line-height:1.6;margin:12px 0 0;color:#8fa599}
/* Official artwork replaces the placeholder brand icon on both study surfaces. */
.page .top .app-brand{display:flex;flex:none;align-items:center;justify-content:center;width:40px;height:40px;margin:0 0 3px;text-decoration:none}.page .top .app-brand img{display:block;width:100%;height:100%;object-fit:contain;border-radius:8px}.page .top .app-brand:focus-visible{outline:2px solid #c7eed9;outline-offset:2px;border-radius:8px}@media(max-width:700px){.page .top .app-brand{width:36px;height:36px}}@media(orientation:landscape) and (max-height:600px){.page .top .app-brand{display:flex;width:26px;height:26px;margin-bottom:1px}.page .top .app-brand img{border-radius:5px}}
#menu .video-help-bubble{display:flex;align-items:center;gap:12px;width:100%;border:1px solid #659b7e;border-radius:18px;background:linear-gradient(120deg,#294a38,#1e3229);padding:14px 16px;margin:0 0 20px;color:#dcf8e8;font:inherit;text-align:left}#menu .video-help-bubble>span:first-child{display:grid;place-items:center;flex:none;width:30px;height:30px;border:1px solid #87bb9a;border-radius:50%;font-size:23px}#menu .video-help-bubble>span:nth-child(2){flex:1;font-size:14px;font-weight:650}#menu .video-help-bubble small{display:block;margin-top:3px;font-size:11px;font-weight:400;color:#a9c8b5}#menu .video-help-bubble>span:last-child{font-size:19px}#courseGuidance{scroll-margin-top:18px}#menu .training-course .course-price-note{font-size:12px;line-height:1.7;color:#c5dacf;margin:12px 0 6px}
/* Keep the learning explanation visible beside the training chooser. */
.page .tools .learn-hub{position:relative;overflow:visible;border:1px solid #678f7c;border-radius:50%;background:#1c3028;color:#c7eed9;box-shadow:0 0 12px #93dbb41c;margin-bottom:13px}.page .tools .learn-hub svg{width:21px;height:21px}.learn-hub>span{position:absolute;top:100%;left:50%;transform:translateX(-50%);font-size:9px;line-height:14px;font-weight:650;letter-spacing:0;color:#c7eed9;white-space:nowrap}.page .tools .learn-hub:hover,.page .tools .learn-hub:focus-visible{background:#2b4739;border-color:#b9e8cc;box-shadow:0 0 15px #93dbb436}@media(orientation:landscape) and (max-height:550px){.page .tools .learn-hub{margin-bottom:10px}.learn-hub>span{font-size:8px;line-height:10px}.page .tools .learn-hub svg{width:18px;height:18px}}
.reference-tabs{display:flex;gap:8px;position:sticky;top:-1px;background:#161d22;padding:8px 0 14px;z-index:1}.reference-tabs button{flex:1;border:1px solid #3e5347;background:#1d2b24;color:#a7bdb0;padding:13px;border-radius:10px;font:inherit}.reference-tabs button[aria-selected=true]{background:#c7eed9;color:#13271b;border-color:#c7eed9;font-weight:750}.reference-panel .reference-step{font-size:10px;letter-spacing:.14em;color:#9eceb3;margin:16px 0 8px}.reference-panel h3{font-size:25px!important;line-height:1.2;margin:0 0 16px!important}.reference-map{display:block;width:100%;height:auto;margin:12px 0 18px}.reference-panel table{margin:20px 0}.reference-panel table td{font-size:20px;color:#d1efdf}.reference-theory{border-top:1px solid #3b4f43;margin-top:25px;padding-top:20px}.reference-theory summary{cursor:pointer;color:#b9dfc9;font-size:14px}.reference-theory[open]>svg{margin-top:20px}.training-time-options{border:1px solid #3b5144;border-radius:13px;padding:16px;margin:0 0 20px;background:#17281f}.training-time-options label{display:block;font-size:13px;font-weight:650;color:#cce6d7;margin-bottom:8px}.training-time-options select{display:block;width:100%;font:inherit;font-size:14px;padding:10px;border:1px solid #587662;border-radius:8px;background:#21372a;color:#e2f9ec}.training-time-options p{font-size:11px!important;line-height:1.5;margin:10px 0 0!important;color:#9ab1a2}.training-time-button{display:flex;flex:none;flex-direction:column;align-items:center;gap:3px;width:100%;padding:4px 0;border:0;background:transparent;color:#c7eed9;cursor:pointer}.training-time-button>span{font-size:12px;font-weight:650;font-variant-numeric:tabular-nums}.training-time-button>small{font-size:7px;line-height:1.1;white-space:nowrap;color:#8da99a}.training-time-button.urgent>span{color:#ffadb2}.page .top .app-brand img{border-radius:0;background:transparent}@media(orientation:landscape) and (max-height:550px){.training-time-button{gap:0;padding:0}.training-time-button>span{font-size:10px}.training-time-button>small{font-size:6px}}

.region-material-intro{padding:18px 0 24px;margin-bottom:22px;border-bottom:1px solid #3c5149}.region-material-intro h3{color:#c7eed9}.region-material-intro .close,.region-material-viewer .close{display:inline-flex;align-items:center;justify-content:center;text-decoration:none;margin:5px 5px 5px 0}.region-material-viewer{width:min(1100px,96vw);max-width:96vw}.region-material-viewer .sheet{max-height:90dvh;overflow:auto}.region-material-controls{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:12px}.region-material-controls span{flex:1;font-size:13px}.region-image-area{overflow:auto;max-height:65dvh;border:1px solid #3c5149;border-radius:10px;background:#242424;touch-action:pan-x pan-y;overscroll-behavior:contain}.region-image-area img{display:block;width:100%;height:auto;max-width:none}.region-image-area.zoomed img{width:max(100%,1400px)}.region-material-tip{font-size:12px!important;color:#9caca5}.region-material-controls button:disabled{opacity:.35}

.region-material-viewer .sheet{max-height:none;overflow:visible}.region-material-viewer{max-height:92dvh;overflow:auto;overscroll-behavior:contain}.region-material-viewer .sheethead{position:sticky;top:-1px;z-index:2;background:#162024;padding:8px 0 12px}.material-sheet{margin:28px 0 12px}.material-sheet-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}.material-sheet-heading h3{margin:0;font-size:17px;color:#c7eed9}.material-sheet-heading .material-zoom{width:auto!important;padding:8px 14px!important;margin:0!important;border:1px solid #547064;border-radius:8px;background:#21352b;color:#d7f7e5;font:inherit;font-size:12px;cursor:pointer}.material-sheet-image{overflow-x:auto;touch-action:pan-x pan-y;border:1px solid #3c5149;border-radius:10px}.material-sheet-image img{display:block;width:100%;max-width:none;height:auto}.material-sheet-image.zoomed img{width:max(100%,1600px)}.material-download{display:inline-block;color:#c7eed9;font-size:14px;padding:12px 0}.region-material-viewer .sheethead .iconbtn{flex-shrink:0}@media(max-width:600px){.material-sheet-heading h3{font-size:14px}.region-material-viewer{width:98vw;max-width:98vw}.region-material-viewer .sheet{padding:15px}}
/* Microphone has an explicit off/pending/on state in both editions. */
#micButton{position:relative}#micButton .mic-off-cross{stroke:currentColor;stroke-width:2.5}#micButton[data-mic="on"] .mic-off-cross{display:none}#micButton[data-mic="on"]{color:#c7eed9;box-shadow:0 0 calc(4px + var(--mic-level,0)*14px) #9de0bb66}#micButton[data-mic="pending"]{opacity:.55}#micButton[data-mic="pending"] .mic-off-cross{display:none}.input-status{color:#a9c7b9;font-size:clamp(10px,1.3vw,12px);line-height:1.3;max-width:700px;margin:3px auto 0}.input-status[data-error="true"]{color:#f0b9a7}.audio-help{max-width:560px}.audio-help .menuhead .close{width:44px;flex-shrink:0}.audio-help>a{display:block;text-align:center;text-decoration:none}.audio-help p{font-size:15px;line-height:1.5}@media(max-height:450px){.input-status{font-size:10px;margin-top:0}}

.result-video-link{display:block;margin-top:12px;text-align:center;text-decoration:none;border:1px solid #78bba0;color:#c7f1da}.result-video-link[hidden]{display:none}

.header-logo{display:block;width:clamp(112px,14vw,150px);height:auto;max-height:54px;object-fit:contain}.app-brand{min-width:150px}.sheet-brand{text-align:center;margin:-8px 0 18px}.sheet-brand img{display:inline-block;width:clamp(150px,55vw,220px);height:auto;max-height:72px;object-fit:contain}@media(max-width:600px){.app-brand{min-width:112px}.header-logo{width:112px}.top{gap:8px}.phase{font-size:8px;letter-spacing:.8px}}