@import "https://fonts.googleapis.com/css2?family=Alegreya+Sans:wght@400;500;700&family=Fraunces:opsz,wght@9..144,600;9..144,700&display=swap";:root{--paper:#f4ecdf;--surface:#fffaf2;--surface-strong:#fff4e3;--canvas:#efe4d4;--line:#dbc8b0;--ink:#26211d;--muted:#61574d;--muted-strong:#846f57;--accent-gold:#d2a74d;--accent-coral:#c95f46;--accent-teal:#2e746a;--accent-primary:var(--accent-teal);--accent-primary-strong:var(--accent-teal);--surface-raised:#fffdf8;--surface-sunken:#eee0ce;--surface-soft:var(--surface-raised);--line-strong:#c5aa88;--text-primary:var(--ink);--text-muted:var(--muted);--panel-shadow:0 28px 70px #4b341821, 0 8px 22px #4b341814, inset 0 1px 0 #ffffffb8;--card-shadow:0 16px 34px #4b34181a, 0 3px 10px #4b34180f, inset 0 1px 0 #ffffffe6;--button-shadow:0 9px 18px #4b34181a, inset 0 -3px 0 #3a2f271a, inset 0 1px 0 #ffffffe6;--button-pressed-shadow:0 4px 9px #4b34181f, inset 0 3px 6px #3a2f271f, inset 0 1px 0 #ffffffb3;--focus-ring:0 0 0 4px #2e746a29;--font-body:"Alegreya Sans", "Segoe UI", sans-serif;--font-display:"Fraunces", Georgia, serif;color:var(--ink);font-family:var(--font-body);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:radial-gradient(circle at 18% 0,#fffaeff5,#0000 28%),radial-gradient(circle at 86% 12%,#d2a74d29,#0000 26%),radial-gradient(circle at 12% 84%,#2e746a1a,#0000 30%),linear-gradient(#f7eedf 0%,#eadbc8 54%,#dfcfb8 100%);font-size:18px;line-height:1.55}*{box-sizing:border-box}html{scroll-behavior:smooth}body{min-width:320px;margin:0}body:before{content:"";pointer-events:none;opacity:.22;z-index:0;background:linear-gradient(90deg,#0000 0 11px,#ffffff1a 12px) 0 0/100% 12px,linear-gradient(#0000 0 11px,#5a3e1e06 12px) 0 0/12px 100%;position:fixed;inset:0}body:after{content:"";pointer-events:none;mix-blend-mode:multiply;z-index:0;background:radial-gradient(circle,#0000 42%,#36261614 100%),linear-gradient(#0000 0%,#5a3e1e0b 100%);position:fixed;inset:0}#root{z-index:1;min-height:100vh;position:relative}button,input,textarea,select{font:inherit}button:focus-visible{outline-offset:2px;outline:3px solid #2e746a6b}h1,h2,h3,h4,p{margin:0}h1,h2,h3{font-family:var(--font-display);color:var(--ink);line-height:1}h1{letter-spacing:-.05em;font-size:clamp(2.8rem,6vw,5rem)}h2{font-size:clamp(1.8rem,3vw,2.6rem)}p{max-width:70ch}a{color:inherit}@media (width<=720px){:root{font-size:16px}}.app-shell{width:min(1120px,100% - 28px);margin:0 auto;padding:16px 0 38px}.hero-panel,.board{background:linear-gradient(180deg, #fffef9f5, #faf2e6f0), var(--surface);box-shadow:var(--panel-shadow);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid #7456342e;border-radius:28px}.hero-panel{background:radial-gradient(circle at 0 0,#c95f4629,#0000 30%),radial-gradient(circle at right 20%,#2e746a26,#0000 34%),linear-gradient(145deg,#fffdf8fa,#f8efe1f0);grid-template-columns:minmax(0,1.25fr) minmax(280px,.75fr);align-items:stretch;gap:18px;margin-bottom:14px;padding:18px 20px;display:grid}.hero-panel__intro{flex-direction:column;justify-content:center;gap:8px;display:flex}.hero-panel__intro h1{max-width:10ch;margin:0}.hero-panel__intro p{max-width:38ch;color:var(--muted);font-size:.96rem}.eyebrow,.section-heading__kicker{text-transform:uppercase;letter-spacing:.2em;color:var(--muted-strong);align-items:center;gap:8px;font-size:.76rem;display:inline-flex}.eyebrow:before,.section-heading__kicker:before{content:"";background:currentColor;border-radius:999px;width:24px;height:2px}.hero-panel__summary{box-shadow:var(--card-shadow);background:linear-gradient(145deg,#fffdf7f5,#f7ecdaf0);border:1px solid #74563424;border-radius:18px;flex-direction:column;justify-content:center;gap:10px;padding:14px 16px;display:flex}.hero-panel__summary-label,.results-diagnosis span,.mode-card__facts dt,.mode-card__history span,.stat-card span{color:var(--muted-strong);font-size:.88rem}.hero-panel__summary strong{font-family:var(--font-display);color:var(--ink);font-size:clamp(1.28rem,2.2vw,1.72rem);line-height:1.08}.hero-panel__summary small{color:var(--muted);font-size:.88rem}.board{padding:20px}.launch-board{background:radial-gradient(circle at 16% 0,#ffffffd1,#0000 30%),linear-gradient(160deg,#fffcf6fa,#f6ebd9f5);max-width:920px;margin:min(8vh,72px) auto 0;padding:clamp(22px,4vw,42px)}.launch-topbar{border-bottom:1px solid #3a2f271a;justify-content:space-between;align-items:flex-start;gap:32px;margin-bottom:30px;padding-bottom:24px;padding-right:188px;display:flex;position:relative}.launch-heading{max-width:620px}.launch-heading h1{letter-spacing:-.04em;max-width:none;margin:12px 0 10px;font-size:clamp(2.2rem,4.4vw,3.6rem)}.launch-heading p,.results-heading p{color:var(--muted)}.history-entry{min-width:154px;color:var(--ink);text-align:left;cursor:pointer;box-shadow:var(--card-shadow);background:#fffdf8bd;border:1px solid #3a2f2724;border-radius:15px;flex:none;padding:12px 14px;transition:border-color .16s,background-color .16s,box-shadow .16s,transform .16s}.history-entry:hover{background:#f0faf7b3;border-color:#2e746a4d;transform:translateY(-1px)}.history-entry:active{box-shadow:var(--button-pressed-shadow);transform:translateY(1px)scale(.985)}.history-entry span,.history-entry small{display:block}.history-entry span{font-weight:700}.history-entry small{color:var(--muted-strong);margin-top:2px;font-size:.82rem}.continue-section{margin-bottom:24px}.launch-section-label{color:var(--muted-strong);letter-spacing:.12em;margin-bottom:9px;font-size:.82rem;font-weight:700;display:block}.continue-card{width:100%;color:var(--ink);text-align:left;cursor:pointer;box-shadow:var(--card-shadow);background:linear-gradient(135deg,#e4f8f1f0,#fffbf3f5);border:1px solid #2e746a4d;border-radius:18px;padding:16px 18px;transition:transform .16s,border-color .16s,box-shadow .16s,background-color .16s}.continue-card:hover{border-color:#2e746a6b;transform:translateY(-1px)}.continue-card:active{box-shadow:var(--button-pressed-shadow);transform:translateY(1px)scale(.985)}.continue-card span,.continue-card small{color:var(--muted-strong);display:block}.continue-card strong{font-family:var(--font-display);margin:4px 0;font-size:1.24rem;line-height:1.16;display:block}.continue-card__title{align-items:center;gap:10px;display:inline-flex}.continue-card__title>span{color:inherit;font:inherit;line-height:1.16;display:inline}.continue-card__header{flex-wrap:wrap;justify-content:flex-start;align-items:center;gap:8px 16px;margin-bottom:8px;display:flex}.continue-card__stats{text-align:left;white-space:nowrap;margin-left:4px}.continue-card__title .category-tile__icon{transform:translateY(2px)}.continue-card__tags{flex-wrap:wrap;gap:8px;display:flex}.continue-card__tag{min-height:28px;color:var(--muted-strong);background:#fff9;border:1px solid #2e746a29;border-radius:999px;align-items:center;padding:4px 10px;font-size:.82rem;font-weight:700;line-height:1.2;display:inline-flex}.launch-categories{margin-bottom:0}.launch-categories .category-tile{flex-direction:column;min-height:0;display:flex}.config-header{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px;display:flex}.config-header h2{margin-top:8px}.config-header__title{align-items:center;gap:10px;display:inline-flex}.config-header__title span{color:inherit;font:inherit;line-height:1.2;display:inline}.quiet-button,.details-toggle{min-height:40px;color:var(--muted-strong);font:inherit;cursor:pointer;background:0 0;border:0;padding:0;transition:color .14s,transform .14s}.quiet-button:hover,.details-toggle:hover{color:var(--ink)}.quiet-button:active,.details-toggle:active{transform:translateY(1px)scale(.98)}.start-bar{-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:linear-gradient(#fffefafa,#f6ebd9f5);border:1px solid #3a2f272e;border-radius:18px;justify-content:space-between;align-items:center;gap:18px;padding:14px 16px;display:flex;position:sticky;bottom:12px;box-shadow:0 22px 42px #4b34182e,inset 0 1px #ffffffdb}.start-bar div{min-width:0}.start-bar strong,.start-bar span{display:block}.start-bar span{color:var(--muted);margin-top:3px;font-size:.9rem}.start-bar .primary-button{min-width:148px;padding:0 22px}.section-heading{justify-content:space-between;align-items:end;gap:18px;margin-bottom:14px;display:flex}.section-heading h2{margin:8px 0 0}.section-heading__copy{max-width:36ch;color:var(--muted);font-size:.94rem}.section-heading--compact{margin-bottom:12px}.home-config,.config-stack{flex-direction:column;gap:14px;display:flex}.home-config--single-note>.config-group:first-of-type{order:3}.home-config--single-note>.config-group:nth-of-type(2){order:1}.home-config--single-note>.config-group:nth-of-type(3){order:2}.home-config--single-note>.start-bar{order:4}.category-switch,.segment-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-bottom:14px;display:grid}.segment-grid--compact{grid-template-columns:repeat(2,minmax(0,1fr))}.category-tile,.segment-card,.interval-option-button{background:linear-gradient(180deg, #ffffffeb, #f8efe1f0), var(--paper);color:var(--ink);text-align:left;box-shadow:var(--card-shadow);border:1px solid #3a2f271f;border-radius:18px;padding:16px;transition:transform .16s,border-color .16s,box-shadow .16s;position:relative;overflow:hidden}.category-tile:before,.segment-card:before{content:"";background:0 0;width:5px;transition:background-color .16s,width .16s;position:absolute;inset:0 auto 0 0}.category-tile strong,.segment-card strong{font-family:var(--font-display);font-size:1.24rem;display:block}.category-tile__title{align-items:center;gap:10px;display:inline-flex}.category-tile__title span{color:inherit;font:inherit;margin-top:0;line-height:1.2}.category-tile__icon{width:1.28rem;height:1.28rem;color:color-mix(in srgb, var(--accent-teal) 82%, var(--ink));flex:none}.category-tile span,.segment-card span{color:var(--muted);margin-top:6px;font-size:.92rem;line-height:1.45;display:block}.category-tile .category-tile__title{align-items:center;display:inline-flex}.category-tile .category-tile__title>span{color:inherit;font-size:inherit;margin-top:0;line-height:1.2;display:inline}.category-tile--active,.segment-card--active,.interval-option-button:hover{border-color:#3a2f273d;transform:translateY(-2px);box-shadow:0 20px 38px #482f1324,0 4px 12px #482f1314,inset 0 0 0 1px #ffffffa3}.category-tile--active:before,.segment-card--active:before{background:linear-gradient(180deg, var(--accent-teal), var(--accent-gold));width:7px}.category-tile:not(:disabled):active,.segment-card:not(:disabled):active,.interval-option-button:not(:disabled):active{box-shadow:var(--button-pressed-shadow);transform:translateY(1px)scale(.99)}.category-tile--upcoming{cursor:not-allowed;background:linear-gradient(180deg, #ffffff85, #eee9e18a), var(--paper);color:color-mix(in srgb, var(--ink) 52%, var(--muted));border-style:dashed;border-color:#3a2f271f;padding-right:96px;box-shadow:inset 0 1px #ffffffb8}.category-tile--upcoming:before{background:#3a2f271a;width:4px}.category-tile--upcoming .category-tile__icon{color:color-mix(in srgb, var(--accent-teal) 28%, var(--muted));opacity:.74}.category-tile--upcoming .category-tile__title{opacity:.68}.category-tile--upcoming .category-tile__status{width:fit-content;max-width:76px;min-height:24px;color:color-mix(in srgb, var(--muted-strong) 68%, var(--muted));white-space:nowrap;background:#f6f1e9c7;border:1px solid #3a2f271f;border-radius:999px;align-items:center;margin-top:0;padding:3px 8px;font-size:.78rem;font-weight:800;line-height:1.2;display:inline-flex;position:absolute;top:12px;right:12px}.category-tile--upcoming:disabled{opacity:1}.config-group{background:linear-gradient(#fffdf89e,#f6edde8a);border:1px solid #7456341f;border-radius:20px;flex-direction:column;gap:10px;padding:14px;display:flex;box-shadow:inset 0 1px #ffffffb8}.config-group__label{color:var(--muted-strong);text-transform:uppercase;letter-spacing:.12em;font-size:.88rem}.config-group__hint{color:var(--muted);margin:-4px 0 0;font-size:.9rem;line-height:1.55}.clef-selector{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-bottom:14px;display:grid}.clef-chip{--clef-accent:var(--accent-gold);background:linear-gradient(180deg, #fffffff0, #f8efe1f0), var(--paper);min-height:74px;color:var(--ink);text-align:center;font-family:var(--font-display);box-shadow:var(--card-shadow);border:1px solid #3a2f2721;border-radius:18px;justify-content:center;align-items:center;padding:0 16px;font-size:1.26rem;font-weight:700;transition:transform .16s,border-color .16s,box-shadow .16s;display:flex;position:relative;overflow:hidden}.clef-chip__label{justify-content:center;align-items:center;gap:10px;line-height:1.1;display:inline-flex}.clef-chip__label>span:last-child{display:inline}.clef-chip__icon{min-width:1.1em;color:color-mix(in srgb, var(--clef-accent) 72%, var(--ink));justify-content:center;align-items:center;font-size:1.32em;line-height:1;display:inline-flex}.clef-chip__icon--treble{transform:translateY(1px)}.clef-chip__icon--bass{transform:translateY(-1px)}.clef-chip__icon--alto,.clef-chip__icon--tenor{transform:translateY(1px)}.clef-chip:hover{border-color:color-mix(in srgb, var(--clef-accent) 24%, #3a2f271f);transform:translateY(-1px)}.clef-chip:not(:disabled):active{box-shadow:var(--button-pressed-shadow);transform:translateY(1px)scale(.985)}.clef-chip:disabled{cursor:default}.clef-chip:disabled:hover{transform:none}.clef-chip--active{border-color:color-mix(in srgb, var(--clef-accent) 58%, #3a2f271f);background:linear-gradient(180deg, color-mix(in srgb, var(--clef-accent) 24%, #fffffffa), color-mix(in srgb, var(--clef-accent) 12%, #f8efe1f5)), var(--paper);color:color-mix(in srgb, var(--clef-accent) 48%, var(--ink));box-shadow:0 20px 38px #482f1329, inset 0 0 0 2px color-mix(in srgb, var(--clef-accent) 42%, transparent), inset 0 -5px 0 color-mix(in srgb, var(--clef-accent) 28%, transparent), 0 0 0 4px color-mix(in srgb, var(--clef-accent) 10%, transparent)}.clef-chip--active:after{content:"✓";background:color-mix(in srgb, var(--clef-accent) 88%, white 12%);color:#fff;border-radius:999px;justify-content:center;align-items:center;width:22px;height:22px;font-family:inherit;font-size:.86rem;font-weight:700;line-height:1;display:inline-flex;position:absolute;top:10px;right:12px;box-shadow:0 8px 18px #482f1329,inset 0 1px #ffffff3d}.clef-summary-card,.results-panel,.stat-card,.answer-panel,.results-diagnosis{box-shadow:var(--card-shadow);background:linear-gradient(#fffefae0,#f7efe2e6);border:1px solid #3a2f2721;border-radius:18px;padding:12px 14px}.clef-summary-card{flex-direction:column;gap:12px;display:flex}.clef-summary-card strong{color:var(--ink);margin-top:4px;font-size:1.18rem;display:block}.clef-summary-card__label{color:var(--muted-strong);font-size:.88rem}.clef-summary-card__stats{flex-wrap:wrap;gap:8px;display:flex}.clef-summary-card__stats span{min-height:28px;color:var(--muted-strong);background:#ffffffad;border:1px solid #3a2f2714;border-radius:999px;align-items:center;padding:0 10px;font-size:.84rem;display:inline-flex}.clef-summary-card__history{background:#ffffff9e;border:1px solid #3a2f2714;border-radius:16px;justify-content:space-between;align-items:end;gap:12px;padding:10px 12px;display:flex}.clef-summary-card__history span{color:var(--muted-strong);font-size:.88rem}.clef-summary-card__history strong{margin:0;font-size:1.1rem}.clef-summary-card__history small{color:var(--muted);font-size:.88rem}.clef-summary-card__history--empty{background:#f8f2e6d1;display:block}.clef-summary-card__start:disabled{cursor:not-allowed;opacity:.56;box-shadow:none;transform:none}.clef-summary-card__helper{color:var(--accent-coral);font-size:.92rem}.mode-card__topline,.training-status,.training-status__chips,.action-row{justify-content:space-between;align-items:center;gap:12px;display:flex}.answer-panel h3,.results-panel h3{font-family:var(--font-display);color:var(--ink);margin:0;font-size:1.42rem}.answer-panel p{color:var(--muted)}.manual-advance{justify-content:flex-end;margin-top:18px;display:flex}.manual-advance .primary-button{min-width:132px}.performance-input{box-shadow:var(--card-shadow);background:linear-gradient(135deg,#effaf7db,#fffcf6f0);border:1px solid #3a2f2724;border-radius:18px;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:16px;padding:16px;display:grid}.performance-input__meter{width:48px;height:48px;color:var(--accent-teal);background:#2e746a1c;border-radius:999px;justify-content:center;align-items:center;gap:4px;display:inline-flex}.performance-input__meter span{transform-origin:bottom;background:currentColor;border-radius:999px;width:5px;height:14px}.performance-input--listening .performance-input__meter span,.performance-input--candidate .performance-input__meter span{animation:.76s ease-in-out infinite performance-meter}.performance-input--listening .performance-input__meter span:nth-child(2),.performance-input--candidate .performance-input__meter span:nth-child(2){animation-delay:.11s}.performance-input--listening .performance-input__meter span:nth-child(3),.performance-input--candidate .performance-input__meter span:nth-child(3){animation-delay:.22s}.performance-input__body{min-width:0}.performance-input__kicker{color:var(--muted-strong);letter-spacing:.12em;text-transform:uppercase;font-size:.78rem;font-weight:700;display:block}.performance-input__body strong{color:var(--ink);font-family:var(--font-display);margin-top:4px;font-size:1.2rem;line-height:1.16;display:block}.performance-input__body p{color:var(--muted);margin:6px 0 0;font-size:.92rem;line-height:1.55}.performance-input__body .performance-input__error{color:#9e392d;font-weight:700}.performance-input__diagnostics{gap:8px;margin-top:12px;display:grid}.performance-input__diagnostic-row{grid-template-columns:70px minmax(0,1fr);align-items:center;gap:10px;display:grid}.performance-input__diagnostic-row span{color:var(--muted-strong);font-size:.82rem;font-weight:700}.performance-input__bar{background:#3a2f271a;border-radius:999px;height:9px;overflow:hidden}.performance-input__bar span{border-radius:inherit;background:linear-gradient(90deg, var(--accent-teal), #78b8aa);transform-origin:0;width:100%;height:100%;transition:transform .12s;display:block}.performance-input__bar--stable span{background:linear-gradient(90deg, var(--accent-gold), var(--accent-coral))}.performance-input .primary-button{min-width:112px;padding:0 18px}@keyframes performance-meter{0%,to{opacity:.62;transform:scaleY(.55)}50%{opacity:1;transform:scaleY(1.35)}}.stat-card strong{color:var(--ink);margin:4px 0 0;font-weight:700}.primary-button,.ghost-button,.answer-button{min-height:48px;font:inherit;cursor:pointer;border:1px solid #0000;border-radius:15px;transition:transform .14s,background-color .14s,border-color .14s,box-shadow .14s}.primary-button{color:#fff9f2;background:linear-gradient(#342d27,#1f1b18);font-weight:700;box-shadow:0 14px 26px #1e1e1c33,inset 0 1px #ffffff24}.primary-button:disabled{cursor:not-allowed;opacity:.5;box-shadow:none;transform:none}.primary-button:hover,.ghost-button:hover,.answer-button:hover:not(:disabled){transform:translateY(-1px)}.primary-button:not(:disabled):active,.ghost-button:not(:disabled):active,.answer-button:not(:disabled):active,.single-note-keypad__key:not(:disabled):active{box-shadow:var(--button-pressed-shadow);transform:translateY(1px)scale(.985)}.ghost-button{color:var(--ink);background:linear-gradient(#ffffffad,#f6eddec7);border-color:#3a2f2729;box-shadow:inset 0 1px #ffffffc2}.pill{min-height:32px;color:var(--ink);background:#fffdf8e0;border:1px solid #3a2f271f;border-radius:999px;align-items:center;padding:0 12px;font-size:.9rem;display:inline-flex;box-shadow:inset 0 1px #ffffffd6}.pill--soft{background:#f3faf8e0}.training-board{background:radial-gradient(circle at 50% 0,#fffc,#0000 34%),linear-gradient(#fffcf6fa,#eee0cef2);max-width:900px;margin:min(5vh,48px) auto 0;padding-top:16px}.training-status{min-height:40px;margin-bottom:16px}.training-status__primary{flex-direction:column;gap:6px;display:flex}.training-status__primary strong{color:var(--ink);font-size:1.15rem}.training-layout{grid-template-columns:minmax(0,1fr);align-items:start;gap:16px;display:grid}.staff-card,.interval-staff-card:not(.interval-staff-card--compact){background:linear-gradient(#fffffffa,#f6eddefa);border:1px solid #3a2f2729;border-radius:24px;padding:18px 18px 16px;box-shadow:0 22px 44px #4b341824,inset 0 1px #ffffffeb}.staff-card__meta,.staff-card__hint{flex-wrap:wrap;justify-content:flex-start;align-items:center;gap:12px;display:flex}.staff-card__context{color:var(--ink);font-family:var(--font-display);align-items:center;gap:10px;font-size:1.08rem;font-weight:700;line-height:1.2;display:inline-flex}.staff-card__context span{color:inherit;font:inherit;line-height:inherit;margin-top:0;display:inline}.staff-card__prompt,.hint-label{color:var(--muted-strong);font-size:.92rem}.staff-card__notation-shell{background:linear-gradient(#fffefafa,#f7f0e6f5);border:1px solid #3a2f271f;border-radius:18px;margin:6px 0 8px;padding:10px;position:relative;box-shadow:inset 0 2px 10px #4b34180f,inset 0 -1px #ffffffb8}.staff-card__feedback{z-index:1;min-height:42px;color:var(--muted-strong);text-align:center;pointer-events:none;background:#ffffffad;border:1px solid #3a2f271a;border-radius:16px;justify-content:center;align-items:center;gap:10px;padding:8px 14px;font-weight:700;display:flex;position:absolute;top:14px;left:10px;right:10px}.staff-card__feedback--correct{color:var(--accent-teal);background:linear-gradient(#e8faf3f5,#d6f1e7eb);border-color:#2e746a42}.staff-card__feedback--wrong{color:var(--accent-coral);background:linear-gradient(#ffeee8fa,#f8e0d9f0);border-color:#c95f463d}.staff-card__feedback-icon{flex:none;justify-content:center;align-items:center;width:20px;height:20px;display:inline-flex}.staff-card__feedback-icon-svg,.staff-card__feedback-icon svg{width:20px;height:20px}.staff-card__feedback-icon--idle{background:#3a2f2714;border-radius:999px;width:20px;height:20px}.staff-card__sheet,.staff-card__notation{min-height:188px;box-shadow:none;background:0 0;border:0;border-radius:18px;justify-content:center;align-items:center;display:flex;overflow:hidden}.staff-card__sheet svg,.staff-card__notation svg{width:100%;height:auto;display:block}.staff-card__notation--sequence{min-height:198px}.staff-card__notation--sequence svg{max-width:420px}.feedback-correct{box-shadow:0 0 0 2px #2e746a38,0 18px 28px #2e746a14}.feedback-wrong{box-shadow:0 0 0 2px #c95f4638,0 18px 28px #c95f4614}.staff-card__hint strong{color:var(--ink)}.answer-panel{background:linear-gradient(#fffefaf5,#efe1cff5);border-color:#3a2f272b;flex-direction:column;gap:14px;display:flex}.answer-panel__heading{flex-direction:column;gap:6px;display:flex}.answer-panel:has(.fingerboard-rotation-control){grid-template-columns:minmax(0,1fr) auto;align-items:start;gap:14px 12px;display:grid}.answer-panel:has(.fingerboard-rotation-control) .answer-panel__heading{grid-column:1;align-self:center}.answer-panel:has(.fingerboard-rotation-control) .fingerboard-rotation-control{grid-area:1/2;place-self:center end}.answer-panel:has(.fingerboard-rotation-control)>:not(.answer-panel__heading):not(.fingerboard-rotation-control){grid-column:1/-1}.answer-grid{grid-template-columns:repeat(7,minmax(0,1fr));gap:10px;display:grid}.single-note-keypad{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;display:grid}.single-note-keypad__key{min-width:0;min-height:82px;color:var(--ink);box-shadow:var(--button-shadow);background:linear-gradient(#fffefa,#efe4d4fa);border-color:#3a2f2729;flex-direction:column;justify-content:center;align-items:center;gap:3px;padding:16px 12px 12px;display:flex;position:relative}.single-note-keypad__key:disabled{cursor:default}.single-note-keypad__shortcut{min-width:22px;min-height:22px;color:var(--muted);background:#3a2f2714;border-radius:999px;justify-content:center;align-items:center;font-size:.72rem;font-weight:800;line-height:1;display:inline-flex;position:absolute;top:9px;left:10px}.single-note-keypad__label{font-family:var(--font-display);font-size:1.56rem;line-height:1}.single-note-keypad__aux{color:var(--muted);text-transform:uppercase;font-size:.78rem;font-weight:800;line-height:1}.single-note-keypad__key--reserved{box-shadow:none;color:#3a2f2775;background:repeating-linear-gradient(-45deg,#3a2f2709 0 7px,#fffefab8 7px 14px);border-color:#3a2f271f}.single-note-keypad__key--reserved .single-note-keypad__aux{color:#3a2f2761}.single-note-keypad__key--correct{background:linear-gradient(#e8faf3,#c4e6daf5);border-color:#2e746a80;box-shadow:0 0 0 4px #2e746a1a,inset 0 -3px #2e746a2e}.single-note-keypad__key--wrong{background:linear-gradient(#ffeee8,#eec8bef5);border-color:#c95f4685;box-shadow:0 0 0 4px #c95f461a,inset 0 -3px #c95f462e}.note-sequence-draft{background:#fffefac2;border:1px solid #3a2f271f;border-radius:8px;grid-column:1/-1;gap:12px;padding:12px;display:grid}.note-sequence-draft__slots{grid-template-columns:repeat(auto-fit,minmax(42px,1fr));gap:8px;display:grid}.note-sequence-draft__slot{min-width:0;min-height:42px;color:var(--muted);background:#ffffffb8;border:1px solid #3a2f2724;border-radius:8px;justify-content:center;align-items:center;padding:8px 10px;font-weight:900;line-height:1;display:inline-flex}.note-sequence-draft__slot--active{color:#0f766e;border-color:#0f766e80;box-shadow:0 0 0 3px #0f766e1a}.note-sequence-draft__slot--correct{color:#235e55;background:#e8faf3eb;border-color:#2e746a70}.note-sequence-draft__slot--wrong{color:#9c412d;background:#ffeee8f0;border-color:#c95f4685}.note-sequence-draft__actions{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;display:grid}.note-sequence-draft__actions button{min-width:0}.piano-keyboard{contain:layout paint;scrollbar-color:#3a2f2752 transparent;overscroll-behavior-x:contain;-webkit-overflow-scrolling:touch;padding:4px 2px 10px;overflow:auto hidden}.piano-keyboard__surface{--piano-white-key-width:clamp(46px, 7.4vw, 58px);min-width:calc(var(--piano-white-count) * var(--piano-white-key-width));width:max-content;padding:0 0 6px;position:relative}.piano-keyboard__white-row{align-items:stretch;display:flex}.piano-key{font-family:var(--font-display);border:1px solid #3a2f2733;font-weight:800;transition:transform .16s,box-shadow .16s,border-color .16s,background .16s;position:relative}.piano-key:disabled{cursor:default}.piano-key--white{flex:0 0 var(--piano-white-key-width);height:168px;color:var(--ink);background:linear-gradient(#fff,#f6efe5 74%,#e5d8c5);border-radius:0 0 10px 10px;justify-content:center;align-items:flex-end;padding:0 4px 12px;display:flex;box-shadow:inset 0 -10px 18px #4b341814,inset 0 1px #fffffff2,0 10px 18px #4b34181a}.piano-key--middle-c:before{content:"";background:#2e746ab3;border-radius:999px;width:2px;height:28px;position:absolute;bottom:40px;left:50%;transform:translate(-50%)}.piano-key__middle-c-marker{z-index:1;max-width:100%;color:var(--accent-teal);font-family:var(--font-body);white-space:nowrap;background:#e8faf3f5;border-radius:999px;justify-content:center;align-items:center;padding:3px 4px;font-size:.68rem;font-weight:900;line-height:1;display:inline-flex;position:relative;box-shadow:0 0 0 1px #2e746a2e,0 6px 10px #2e746a1a}.piano-key--white:not(:disabled):hover{border-color:#b87c3670;transform:translateY(2px);box-shadow:inset 0 -8px 16px #4b34181c,0 8px 14px #4b34181f}.piano-key--white:not(:disabled):active{transform:translateY(5px);box-shadow:inset 0 -4px 12px #4b341824,0 4px 9px #4b34181f}.piano-keyboard__black-row{position:absolute;inset:0 auto auto 0}.piano-key--black{top:0;left:calc((var(--piano-white-index) - .36) * var(--piano-white-key-width));z-index:1;width:calc(var(--piano-white-key-width) * .62);color:#fffefa9e;pointer-events:none;background:linear-gradient(#302b26,#181615 72%,#0c0c0c);border-color:#0c0c0ccc;border-radius:0 0 8px 8px;justify-content:center;align-items:flex-end;height:104px;padding:0 2px 12px;display:flex;position:absolute;box-shadow:inset 0 -12px 18px #00000061,0 10px 14px #26190d33}.piano-key--correct{color:var(--accent-teal);background:linear-gradient(#f1fff9,#d3f2e7 76%,#abdbcb);border-color:#2e746ab3;box-shadow:inset 0 -10px 18px #2e746a21,0 0 0 2px #2e746a2e,0 12px 20px #2e746a1f}.piano-key--wrong{color:var(--accent-coral);background:linear-gradient(#fff6f2,#f9dcd3 76%,#e6b8ab);border-color:#c95f46b8;box-shadow:inset 0 -10px 18px #c95f4624,0 0 0 2px #c95f462e,0 12px 20px #c95f461f}.fingerboard-rotation-control{align-items:center;gap:10px;width:fit-content;display:inline-flex}.fingerboard-rotation-control__button{width:42px;height:42px;color:var(--ink);box-shadow:var(--button-shadow);background:linear-gradient(#fffefafa,#eee2d1f5);border:1px solid #3a2f2724;border-radius:999px;justify-content:center;align-items:center;padding:0;display:inline-flex}.fingerboard-rotation-control__button:hover{border-color:#3a2f2742;transform:translateY(1px)}.fingerboard-rotation-control__button:active{box-shadow:var(--button-pressed-shadow);transform:translateY(2px)scale(.96)}.fingerboard-rotation-control__icon{stroke:currentColor;width:22px;height:22px}.fingerboard-rotation-control__status{color:var(--muted-strong);font-size:.86rem;font-weight:800}.violin-fingerboard-frame{--fingerboard-layout-width:min(560px, calc(100vw - 76px));--fingerboard-layout-height:232px;--fingerboard-neck-inset-top:8px;--fingerboard-neck-inset-bottom:8px;--fingerboard-neck-inset-left:40px;--fingerboard-neck-inset-right:-8px;padding:2px;position:relative;overflow:visible}.violin-fingerboard-frame--rotate-90,.violin-fingerboard-frame--rotate-270{min-height:0;padding-block:8px}.violin-fingerboard-stage{justify-content:center;width:100%;margin-inline:auto;display:flex;position:relative}.violin-fingerboard-stage--rotate-90,.violin-fingerboard-stage--rotate-270{width:min(var(--fingerboard-layout-height), 100%);height:var(--fingerboard-layout-width);align-items:center}.violin-fingerboard{width:var(--fingerboard-layout-width);transform-origin:50%;padding:10px 2px 12px;transition:transform .18s;position:relative;overflow:visible}.violin-fingerboard--rotate-90{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)rotate(90deg)}.violin-fingerboard--rotate-180{transform:rotate(180deg)}.violin-fingerboard--rotate-270{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)rotate(270deg)}.violin-fingerboard__neck{top:var(--fingerboard-neck-inset-top);bottom:var(--fingerboard-neck-inset-bottom);left:var(--fingerboard-neck-inset-left);right:var(--fingerboard-neck-inset-right);background:linear-gradient(90deg,#352018fa,#633a26fa 48%,#2c1b17fa),repeating-linear-gradient(90deg,#ffffff08 0 1px,#0000 1px 18px);border-radius:18px;min-width:430px;position:absolute;box-shadow:inset 0 10px 22px #ffffff0f,inset 0 -16px 24px #0003,0 16px 28px #4b341829}.violin-fingerboard__strings{z-index:1;gap:14px;width:100%;min-width:0;display:grid;position:relative}.violin-string-row{grid-template-columns:34px minmax(0,1fr);align-items:center;gap:14px;display:grid}.violin-string-row__label{width:30px;height:30px;color:var(--ink);font-family:var(--font-display);box-shadow:var(--button-shadow);background:#fffefae0;border:1px solid #3a2f272e;border-radius:999px;justify-content:center;align-items:center;font-weight:800;display:inline-flex}.violin-string-row__label-text{transform-origin:50%;justify-content:center;align-items:center;width:100%;height:100%;display:inline-flex}.violin-string-row__track{grid-template-columns:repeat(5,minmax(44px,1fr));align-items:center;min-height:44px;padding:0 18px;display:grid;position:relative}.violin-string-row__line{background:linear-gradient(90deg,#f5ebd685,#fffffff0,#b6976694);border-radius:999px;height:3px;position:absolute;top:50%;left:18px;right:18px;transform:translateY(-50%);box-shadow:0 1px #ffffff3d,0 3px 6px #0003}.violin-finger-point{z-index:1;color:#362014eb;width:38px;height:38px;font-family:var(--font-display);background:radial-gradient(circle at 36% 28%,#fffffff5,#f0ddb9f5 42%,#b07241f5);border:1px solid #fffefa75;border-radius:999px;justify-self:center;padding:0;font-size:1rem;font-weight:800;position:relative;box-shadow:inset 0 1px #ffffffd1,0 8px 14px #1c120c3d}.violin-finger-point--open{background:radial-gradient(circle at 36% 28%,#fff,#e7f1eef5 45%,#80a29af0)}.violin-finger-point:not(:disabled):hover{border-color:#fffefac7;transform:translateY(1px)scale(1.03)}.violin-finger-point:not(:disabled):active{transform:translateY(3px)scale(.94);box-shadow:inset 0 2px 5px #36201438,0 4px 9px #1c120c3d}.violin-finger-point:disabled{cursor:default}.violin-finger-point__label{transform-origin:50%;justify-content:center;align-items:center;width:100%;height:100%;display:inline-flex}.violin-finger-point__label--counter-90,.violin-string-row__label-text--counter-90{transform:rotate(-90deg)}.violin-finger-point__label--counter-180,.violin-string-row__label-text--counter-180{transform:rotate(-180deg)}.violin-finger-point__label--counter-270,.violin-string-row__label-text--counter-270{transform:rotate(-270deg)}.violin-finger-point--correct{color:#fff;background:radial-gradient(circle at 36% 28%,#fff,#cdf7e5fa 46%,#2e746afa);border-color:#e3fff4fa;box-shadow:0 0 0 3px #2e746a38,0 10px 18px #2e746a33}.violin-finger-point--wrong{color:#fff;background:radial-gradient(circle at 36% 28%,#fff,#fbd6cafa 46%,#c95f46fa);border-color:#ffeee8fa;box-shadow:0 0 0 3px #c95f4638,0 10px 18px #c95f4633}.answer-button{min-height:74px;color:var(--ink);font-family:var(--font-display);box-shadow:var(--button-shadow);background:linear-gradient(#fffefa,#efe4d4fa);border-color:#3a2f2729;font-size:1.45rem}.answer-button:disabled{cursor:default}.answer-button--text{font-size:1.1rem}.interval-name-grid,.interval-option-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;display:grid}.interval-option-button{min-width:0;padding:10px;overflow:hidden}.interval-option-button:disabled{cursor:default}.interval-option-button--correct{background:#2e746a1a;border-color:#2e746a52}.interval-option-button--wrong{background:#c95f461a;border-color:#c95f4652}.answer-button--correct{background:linear-gradient(#e8faf3,#c4e6daf5);border-color:#2e746a80;box-shadow:0 0 0 4px #2e746a1a,inset 0 -3px #2e746a2e}.answer-button--wrong{background:linear-gradient(#ffeee8,#eec8bef5);border-color:#c95f4685;box-shadow:0 0 0 4px #c95f461a,inset 0 -3px #c95f462e}.feedback-strip{min-height:28px;color:var(--ink);align-items:center;padding:0 4px;font-weight:700;display:flex}.feedback-strip--correct{color:var(--accent-teal)}.feedback-strip--wrong{color:var(--accent-coral)}.feedback-strip strong{margin-left:4px}.answer-panel__exit{align-self:flex-start;min-height:40px;padding:0 14px;font-size:.94rem}.interval-target-card__body{flex-direction:column;justify-content:center;gap:10px;min-height:180px;display:flex}.interval-target-card__body strong{font-family:var(--font-display);color:var(--ink);font-size:clamp(2rem,4vw,3rem);line-height:1}.interval-staff-card{min-height:100%}.interval-staff-card--compact{background:0 0;border-radius:14px;width:100%;min-width:0;padding:0}.interval-staff-card--compact .staff-card__notation{width:100%;min-width:0;min-height:0;box-shadow:none;background:0 0;border:0;margin:0;overflow:hidden}.interval-staff-card--compact .staff-card__notation svg{width:100%;max-width:100%;height:auto;display:block}.results-diagnosis{background:radial-gradient(circle at 12% 0,#d2a74d38,#0000 34%),linear-gradient(135deg,#fff7dff5,#e5f7f1ed);border-color:#8e67312e;flex-direction:column;gap:8px;margin-bottom:16px;display:flex}.results-diagnosis strong{font-family:var(--font-display);color:var(--ink);font-size:clamp(1.35rem,2.6vw,2rem);line-height:1.12}.stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-bottom:16px;display:grid}.stat-card{background:linear-gradient(#fffefafa,#f3e8d6f5);flex-direction:column;justify-content:space-between;min-height:116px;display:flex}.stat-card strong{font-family:var(--font-display);font-size:2rem;line-height:1}.results-layout{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;display:grid}.results-list{flex-direction:column;gap:10px;margin-top:14px;display:flex}.results-row{border-bottom:1px dashed #3a2f271f;justify-content:space-between;align-items:center;gap:12px;padding:10px 0;display:flex}.results-row:last-child{border-bottom:none;padding-bottom:0}.results-row span{color:var(--muted)}.results-row strong{color:var(--ink)}.results-row--alert strong{color:var(--accent-coral)}.comparison-banner{box-shadow:var(--card-shadow);background:linear-gradient(135deg,#fff7dff5,#e8f8f2f0);border:1px solid #3a2f2724;border-radius:18px;justify-content:space-between;align-items:center;gap:14px;margin-top:16px;padding:16px 18px;display:flex}.comparison-banner span,.comparison-banner small{color:var(--muted-strong)}.comparison-banner strong{color:var(--ink)}.action-row{justify-content:flex-start;margin-top:16px}.action-row .primary-button,.action-row .ghost-button{min-width:150px;padding:0 20px}.results-board{max-width:900px;margin:min(5vh,48px) auto 0}.results-heading{margin-bottom:16px}.results-heading h2{margin:8px 0}.details-toggle{text-align:left;border-top:1px solid #3a2f271a;width:100%;margin-top:20px}.result-details{margin-top:8px}.app-footer-action{justify-content:center;margin-top:24px;display:flex}.app-utility-bar{align-items:center;gap:10px;display:inline-flex;position:absolute;top:0;right:0}.app-utility-link,.app-utility-button{background:linear-gradient(180deg, #ffffffe0, #f4e9d8e6), var(--surface);min-height:42px;color:var(--ink);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid #3a2f2724;border-radius:999px;justify-content:center;align-items:center;display:inline-flex;box-shadow:0 12px 28px #4b34181f,inset 0 1px #ffffffd1}.app-utility-link{width:42px}.app-utility-button{font:inherit;cursor:pointer;padding:0 16px;font-size:.94rem}.app-utility-link:hover,.app-utility-button:hover{color:var(--ink);transform:translateY(-1px)}.app-utility-link:active,.app-utility-button:active{box-shadow:var(--button-pressed-shadow);transform:translateY(1px)scale(.96)}.app-utility-link__icon{width:18px;height:18px}.about-modal-backdrop{z-index:40;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#221c1857;place-items:center;padding:20px;display:grid;position:fixed;inset:0}.about-modal{background:radial-gradient(circle at 0 0,#c95f4624,#0000 26%),radial-gradient(circle at right 18%,#2e746a1f,#0000 28%),linear-gradient(#fffefafa,#f4e9d8f7);border:1px solid #3a2f2724;border-radius:28px;width:min(560px,100%);padding:22px;box-shadow:0 26px 60px #231c1542,inset 0 1px #ffffffd6}.about-modal__header{justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:18px;display:flex}.about-modal__header h2{margin:10px 0 0}.about-modal__close{width:42px;height:42px;color:var(--ink);font:inherit;cursor:pointer;background:#ffffffb8;border:1px solid #3a2f2724;border-radius:999px;font-size:1.5rem;line-height:1}.about-modal__content{gap:12px;display:grid}.about-modal__card{box-shadow:var(--card-shadow);background:linear-gradient(#ffffffd6,#f7efe2e6);border:1px solid #3a2f271f;border-radius:18px;padding:16px 18px}.about-modal__card span{color:var(--muted-strong);font-size:.86rem;display:block}.about-modal__card strong{font-family:var(--font-display);color:var(--ink);margin-top:6px;font-size:1.36rem;line-height:1.15;display:block}.about-modal__card p{color:var(--muted);margin:8px 0 0;line-height:1.65}.settings-modal__content{gap:14px;display:grid}.settings-modal__summary{background:#ffffff9e;border:1px solid #3a2f271f;border-radius:18px;justify-content:space-between;align-items:center;gap:16px;padding:14px 16px;display:flex}.settings-modal__summary span{color:var(--muted-strong);font-size:.9rem}.settings-modal__summary strong{color:var(--ink)}@media (width<=980px){.hero-panel,.category-switch,.segment-grid,.clef-selector,.stat-grid,.results-layout,.training-layout{grid-template-columns:1fr}.section-heading,.comparison-banner,.start-bar{flex-direction:column;align-items:flex-start}.hero-panel__intro h1{max-width:12ch}.action-row{flex-wrap:wrap;justify-content:stretch;width:100%}.action-row .ghost-button,.action-row .primary-button{flex:calc(50% - 6px);min-width:0}.start-bar .primary-button{width:100%}.performance-input{grid-template-columns:1fr;align-items:stretch}.performance-input__meter{justify-self:start}.performance-input .primary-button{width:100%}.answer-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.interval-name-grid,.interval-option-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (width<=720px){.app-shell{width:min(100% - 18px,100%);padding:14px 0 34px;overflow-x:clip}.hero-panel,.board{border-radius:22px;min-width:0;max-width:100%;padding:16px;overflow-x:clip}.launch-board,.training-board,.results-board{margin-top:0}.training-layout,.staff-card,.answer-panel{min-width:0;max-width:100%}.launch-topbar{min-height:96px;margin-bottom:22px;padding-right:0}.history-entry{width:100%;margin-top:0}.config-header{flex-direction:column;gap:12px}.clef-selector{grid-template-columns:1fr}.interval-name-grid,.interval-option-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.interval-name-grid .answer-button--text{min-height:56px;font-family:var(--font-body);padding:8px 6px;font-size:1rem;line-height:1.15}.interval-option-button{border-radius:14px;padding:6px}.interval-staff-card__compact-label{margin-top:0;font-size:.74rem}.answer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.mode-card,.results-panel,.answer-panel,.stat-card,.results-diagnosis{border-radius:18px}.answer-button{min-height:70px}.answer-panel{min-width:0;overflow:hidden}.piano-keyboard,.violin-fingerboard-frame,.violin-fingerboard{margin-inline:-4px;padding-inline:4px}.piano-keyboard{max-width:calc(100% + 8px);padding-bottom:14px;overflow:auto hidden}.piano-keyboard__surface{--piano-white-key-width:48px}.piano-key--white{height:154px}.piano-key--black{height:96px}.violin-fingerboard-frame{--fingerboard-neck-inset-top:4px;--fingerboard-neck-inset-bottom:4px;--fingerboard-neck-inset-left:32px;--fingerboard-neck-inset-right:-14px}.violin-fingerboard{padding-bottom:16px}.violin-fingerboard-frame--rotate-90,.violin-fingerboard-frame--rotate-270{padding-block:6px}.violin-fingerboard__neck{min-width:0}.violin-fingerboard__strings{gap:10px}.violin-string-row{grid-template-columns:30px minmax(0,1fr);gap:10px}.violin-string-row__track{grid-template-columns:repeat(5,minmax(42px,1fr));padding:0 16px}.violin-finger-point{width:42px;height:42px}.comparison-banner{align-items:flex-start}.app-utility-bar{gap:8px}.app-utility-link,.app-utility-button{min-height:38px}.app-utility-link{width:38px}.app-utility-button{padding:0 14px;font-size:.9rem}.about-modal-backdrop{padding:14px}.about-modal{border-radius:22px;padding:18px}}@media (height<=520px) and (orientation:landscape){.app-shell{width:min(100% - 16px,100%);padding:8px 0 16px;overflow-x:clip}.board{border-radius:18px;padding:10px}.training-board{max-width:100%;margin-top:0;padding-top:10px}.training-status{min-height:0;margin-bottom:8px}.training-status__primary{gap:2px}.training-status__chips{gap:8px}.training-layout{grid-template-columns:minmax(250px,.9fr) minmax(320px,1.1fr);align-items:stretch;gap:10px}.staff-card,.interval-staff-card:not(.interval-staff-card--compact),.answer-panel{border-radius:18px;min-width:0;padding:10px}.staff-card{flex-direction:column;display:flex}.staff-card__meta,.staff-card__hint{gap:8px}.staff-card__context{font-size:.98rem}.staff-card__notation-shell{border-radius:14px;flex:auto;margin:4px 0 0;padding:6px}.staff-card__sheet,.staff-card__notation{min-height:116px}.staff-card__notation--sequence{min-height:126px}.staff-card__feedback{border-radius:12px;min-height:34px;padding:6px 10px;font-size:.9rem;top:8px;left:8px;right:8px}.answer-panel{gap:10px;overflow:hidden}.answer-panel h3{font-size:1.16rem}.answer-panel__heading{gap:2px}.answer-grid{grid-template-columns:repeat(7,minmax(0,1fr));gap:8px}.answer-button{min-height:50px;font-size:1.18rem}.answer-button--text{font-size:.96rem}.piano-keyboard{max-width:100%;padding-bottom:8px}.piano-keyboard__surface{--piano-white-key-width:44px}.piano-key--white{height:112px}.piano-key--black{height:70px}.piano-key--middle-c:before{height:22px;bottom:34px}.piano-key__middle-c-marker{font-size:.62rem}.fingerboard-rotation-control__button{width:38px;height:38px}.violin-fingerboard-frame{--fingerboard-layout-width:min(440px, calc(100vw - 370px));--fingerboard-layout-height:196px;--fingerboard-neck-inset-top:4px;--fingerboard-neck-inset-bottom:4px;--fingerboard-neck-inset-left:30px;--fingerboard-neck-inset-right:-12px}.violin-fingerboard{padding-bottom:10px}.violin-fingerboard-stage--rotate-90,.violin-fingerboard-stage--rotate-270{width:min(var(--fingerboard-layout-height), 100%)}.violin-fingerboard__neck{min-width:0}.violin-fingerboard__strings{gap:8px}.violin-string-row{grid-template-columns:28px minmax(0,1fr);gap:8px}.violin-string-row__track{grid-template-columns:repeat(5,minmax(36px,1fr));padding:0 12px}.violin-string-row__label,.violin-finger-point{width:34px;height:34px}.violin-string-row__label{width:28px;height:28px;font-size:.92rem}.violin-finger-point{font-size:.92rem}}@media (prefers-reduced-motion:reduce){.category-tile,.segment-card,.clef-chip,.history-entry,.continue-card,.quiet-button,.details-toggle,.primary-button,.ghost-button,.answer-button,.interval-option-button,.single-note-keypad__key,.piano-key,.fingerboard-rotation-control__button,.violin-finger-point,.app-utility-link,.app-utility-button{transition:none}}.storage-notice,.legacy-notice,.history-empty{border:1px solid color-mix(in srgb, var(--accent-coral) 45%, transparent);color:var(--text-primary);background:color-mix(in srgb, var(--accent-coral) 10%, transparent);border-radius:.8rem;padding:.85rem 1rem}.result-details-grid,.trend-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem;margin-bottom:1rem;display:grid}.analytics-table-wrap{overflow-x:auto}.analytics-table{border-collapse:collapse;text-align:left;width:100%}.analytics-table th,.analytics-table td{border-bottom:1px solid var(--line);white-space:nowrap;padding:.7rem .5rem}.trend-card{border:1px solid var(--line);background:var(--surface-soft);border-radius:1rem;margin:0;padding:1rem}.trend-card figcaption{justify-content:space-between;gap:1rem;margin-bottom:.8rem;display:flex}.trend-card figcaption span{color:var(--text-muted);font-size:.82rem}.trend-chart{width:100%;min-height:8rem}.trend-chart line{stroke:var(--line);stroke-width:2px}.trend-chart__line{fill:none;stroke:var(--accent-primary);stroke-linecap:round;stroke-linejoin:round;stroke-width:5px}.trend-chart__line--flat{stroke:color-mix(in srgb, var(--accent-primary) 82%, white)}.trend-chart__dot{fill:var(--accent-primary);stroke:var(--surface-soft);stroke-width:2.5px}.trend-chart--empty{color:var(--text-muted);place-items:center;display:grid}.history-board{gap:1.2rem;display:grid}.history-filters{flex-wrap:wrap;gap:.7rem;display:flex}.history-filters select,.history-filters input{border:1px solid var(--line);background:var(--surface-soft);min-height:2.6rem;color:var(--text-primary);border-radius:.7rem;padding:0 .7rem}.history-date-filter{position:relative}.history-date-filter__trigger{justify-content:space-between;align-items:center;gap:.8rem;min-width:min(100%,15rem);display:inline-flex}.history-date-filter__trigger--active{border-color:color-mix(in srgb, var(--accent-primary) 40%, var(--line));box-shadow:0 0 0 1px color-mix(in srgb, var(--accent-primary) 18%, transparent)}.history-date-filter__popover{z-index:20;border:1px solid var(--line);background:color-mix(in srgb, var(--surface) 92%, white);border-radius:1rem;width:min(22rem,100vw - 2.5rem);padding:.9rem;position:absolute;top:calc(100% + .45rem);left:0;box-shadow:0 16px 42px #0f172a1f}.history-date-filter__options{grid-template-columns:repeat(2,minmax(0,1fr));gap:.55rem;display:grid}.history-date-filter__option{border:1px solid var(--line);background:var(--surface-soft);min-height:2.4rem;color:var(--text-primary);text-align:left;cursor:pointer;border-radius:.8rem;padding:.55rem .75rem}.history-date-filter__option--active{border-color:color-mix(in srgb, var(--accent-primary) 45%, var(--line));background:color-mix(in srgb, var(--accent-primary) 10%, var(--surface-soft));color:var(--accent-primary-strong)}.history-date-filter__custom{border-top:1px solid var(--line);gap:.7rem;margin-top:.8rem;padding-top:.8rem;display:grid}.history-date-filter__field{color:var(--text-muted);gap:.35rem;font-size:.84rem;display:grid}.history-date-filter__field span{padding-left:.1rem}.history-clefs{margin:0}.history-stat-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.session-list{gap:.55rem;display:grid}.session-list button{border:1px solid var(--line);background:var(--surface-soft);width:100%;color:var(--text-primary);text-align:left;cursor:pointer;border-radius:.75rem;justify-content:space-between;gap:1rem;padding:.85rem;display:flex}@media (width<=760px){.result-details-grid,.trend-grid,.history-stat-grid{grid-template-columns:1fr}.history-filters,.session-list button,.trend-card figcaption{flex-direction:column}.history-date-filter,.history-date-filter__trigger,.history-date-filter__popover{width:100%}.history-date-filter__options{grid-template-columns:1fr}}