@import"https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;700&display=swap";:root{--hue-primary: 0;--hue-success: 150;--hue-error: 10;--hue-text: 30;--color-bg: hsl(30, 20%, 97%);--color-surface: hsl(0, 0%, 100%);--color-primary: hsl(0, 0%, 20%);--color-primary-dark: hsl(0, 0%, 0%);--color-text-main: hsl(var(--hue-text), 10%, 20%);--color-text-muted: hsl(var(--hue-text), 5%, 60%);--color-success: hsl(var(--hue-success), 60%, 45%);--color-error: hsl(var(--hue-error), 70%, 55%);--color-warning: hsl(35, 90%, 50%);--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 16px;--spacing-lg: 24px;--spacing-xl: 32px;--spacing-2xl: 48px;--font-family: "Inter", system-ui, -apple-system, sans-serif;--font-family-serif: "Playfair Display", serif;--font-size-base: 16px;--font-size-lg: 1.25rem;--font-size-xl: 1.5rem;--font-size-2xl: 2rem;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px rgba(0, 0, 0, .05), 0 1px 3px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px rgba(0, 0, 0, .05), 0 4px 6px rgba(0, 0, 0, .02);--radius-sm: 6px;--radius-md: 12px;--radius-lg: 24px}@media(prefers-color-scheme:dark){:root{--color-bg: hsl(30, 20%, 10%);--color-surface: hsl(30, 20%, 15%);--color-text-main: hsl(30, 10%, 90%);--color-text-muted: hsl(30, 10%, 60%);--color-primary: hsl(0, 0%, 90%);--color-primary-dark: hsl(0, 0%, 100%)}}body{margin:0;font-family:var(--font-family);background-color:var(--color-bg);color:var(--color-text-main);transition:background-color .3s ease,color .3s ease;line-height:1.5}#root{height:100vh;display:flex;flex-direction:column}.tuning-meter-container{display:flex;flex-direction:column;align-items:center;width:260px;background:#0006;padding:12px;border-radius:12px;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);border:1px solid rgba(255,255,255,.1);margin-top:10px}.meter-scale{position:relative;width:100%;height:24px;background:#ffffff1a;border-radius:12px;margin-bottom:8px;overflow:hidden}.tick{position:absolute;top:4px;font-size:10px;color:#ffffff80;transform:translate(-50%)}.tick-left{left:10%}.tick-center{left:50%}.tick-right{left:90%}.center-line{position:absolute;left:50%;top:0;bottom:0;width:2px;background:#ffffff4d;transform:translate(-50%);z-index:1}.meter-needle{position:absolute;top:0;bottom:0;width:4px;background:#fff;transform:translate(-50%);transition:left .1s ease-out;z-index:2;border-radius:2px;box-shadow:0 0 8px #ffffff80}.meter-needle.perfect{background-color:#4ade80;box-shadow:0 0 10px #4ade80}.meter-needle.good{background-color:#86efac}.meter-needle.okay{background-color:#facc15}.meter-needle.poor{background-color:#f87171}.tuning-readout{display:flex;align-items:baseline;gap:8px;font-family:monospace}.tuning-readout .note-name{font-size:1.25rem;font-weight:700;color:#fff}.tuning-readout .cents-value{font-size:.9rem;color:#ffffffb3}.tuning-readout .cents-value.perfect{color:#4ade80}.tuning-readout .cents-value.okay{color:#facc15}.tuning-readout .cents-value.poor{color:#f87171}.open-source-modal{max-width:500px;width:90%}.library-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:16px}.library-item{display:flex;flex-direction:column;border-bottom:1px solid rgba(255,255,255,.1);padding-bottom:12px}.library-item:last-child{border-bottom:none}.library-name{font-weight:600;color:#646cff;text-decoration:none;font-size:1.1rem;margin-bottom:4px}.library-name:hover{text-decoration:underline}.library-desc{color:#ccc;font-size:.9rem}@media(prefers-color-scheme:light){.library-item{border-bottom:1px solid rgba(0,0,0,.1)}}.app-container{display:flex;flex-direction:column;min-height:100vh;background-color:var(--color-bg)}.app-header{display:flex;justify-content:space-between;align-items:center;padding:var(--spacing-sm) var(--spacing-xl);background-color:var(--color-surface);box-shadow:var(--shadow-sm)}.logo{font-family:var(--font-family-serif);font-weight:700;font-size:1.5rem;letter-spacing:-.02em;color:var(--color-primary)}.streak-badge{background-color:var(--color-primary-dark);color:#fff;padding:var(--spacing-xs) var(--spacing-md);border-radius:var(--radius-lg);font-weight:600}.main-stage{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--spacing-md);gap:var(--spacing-xl)}.card{background-color:var(--color-surface);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);padding:var(--spacing-xl);display:flex;flex-direction:column;align-items:center;width:100%;max-width:600px;transition:max-width .3s cubic-bezier(.25,.8,.25,1),transform .2s ease}.card.has-hint{max-width:850px}.sheet-music-container{display:flex;justify-content:center;width:100%;overflow:hidden}.feedback-area{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);z-index:1000;pointer-events:none;width:auto;height:auto;margin:0;display:flex;justify-content:center;align-items:center}.success-message{color:#fff;background-color:#000000bf;padding:1rem 2rem;border-radius:40px;box-shadow:0 4px 20px #0000004d;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;flex-direction:column;align-items:center;justify-content:center;line-height:1.1;text-align:center}.success-prefix{font-size:1.5rem;font-weight:700;opacity:.9;text-transform:uppercase;letter-spacing:.05em;margin-bottom:.2rem}.success-note{font-size:4rem;font-weight:800;text-shadow:0 2px 10px rgba(0,0,0,.2)}.instruction-text{display:none}.error-message{color:var(--color-error);margin-top:var(--spacing-md)}.hint-card{margin-top:var(--spacing-md);padding:var(--spacing-md);background-color:var(--color-bg);border-radius:var(--radius-sm);width:100%;text-align:center}.hint-note{font-size:var(--font-size-lg);font-weight:700;margin-bottom:var(--spacing-xs)}.hint-positions{display:flex;flex-wrap:wrap;gap:var(--spacing-xs);justify-content:center}.hint-tag{background-color:var(--color-surface);border:1px solid var(--color-text-muted);padding:2px 8px;border-radius:4px;font-size:.8rem;color:var(--color-text-main)}button{color:var(--color-text-main)}.pitch-monitor-bar{display:flex;align-items:center;gap:var(--spacing-xl)}.mic-button{background-color:var(--color-surface);border:2px solid var(--color-text-muted);color:var(--color-text-muted);width:64px;height:64px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s ease}.mic-button:hover{background-color:var(--color-bg);color:var(--color-text-main)}.mic-button.listening{border-color:var(--color-primary);color:var(--color-primary);box-shadow:0 0 15px rgba(var(--hue-primary),.3)}.pitch-readout{display:flex;flex-direction:column;min-width:100px}.detected-note{font-size:3rem;font-weight:800;line-height:1;color:var(--color-text-muted)}.detected-note.match{color:var(--color-success)}.detected-hz{font-size:.9rem;color:var(--color-text-muted)}.settings-footer{background-color:var(--color-surface);padding:var(--spacing-md);display:flex;flex-direction:column;align-items:center;gap:var(--spacing-md);border-top:1px solid rgba(0,0,0,.05)}.controls-container{display:flex;flex-direction:column;gap:var(--spacing-lg);width:100%;max-width:800px}.settings-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--spacing-md);width:100%}.tools-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--spacing-md);width:100%;align-items:start}@media(max-width:600px){.settings-grid,.tools-grid{grid-template-columns:1fr}}.control-group{display:flex;flex-direction:column;gap:var(--spacing-xs);width:100%}.control-label{display:flex;align-items:center;gap:var(--spacing-xs);font-size:.8rem;color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.05em}.control-select{padding:var(--spacing-sm);border-radius:var(--radius-sm);border:1px solid #ddd;font-family:inherit;font-size:.9rem;background-color:var(--color-bg)}.control-button{background:none;border:none;cursor:pointer;color:var(--color-text-muted);padding:var(--spacing-sm);transition:color .2s}.control-button.active{color:var(--color-primary)}@keyframes pop{0%{transform:scale(.8);opacity:0}50%{transform:scale(1.1)}to{transform:scale(1);opacity:1}}.animate-pop{animation:pop .3s cubic-bezier(.175,.885,.32,1.275) forwards}.switch-button{width:44px;height:24px;border-radius:99px;background-color:#ddd;position:relative;cursor:pointer;transition:background-color .2s;padding:0;border:none;display:flex;align-items:center}.switch-button.active{background-color:var(--color-primary)}.switch-thumb{width:18px;height:18px;background-color:#fff;border-radius:50%;position:absolute;left:3px;transition:transform .2s;box-shadow:0 1px 3px #0003}.switch-button.active .switch-thumb{transform:translate(17px)}.hint-button{background-color:transparent;border:2px solid var(--color-primary);color:var(--color-primary);padding:.5rem 1rem;border-radius:30px;font-weight:600;cursor:pointer;display:flex;align-items:center;gap:8px;transition:all .2s;font-size:.9rem}.hint-button:hover{background-color:rgba(var(--hue-primary),.1);transform:translateY(-2px)}.hint-button.active{background-color:var(--color-primary);color:#fff;box-shadow:0 4px 12px rgba(var(--hue-primary),.3)}.hint-button.active:hover{background-color:var(--color-primary-dark)}.zen-button{background-color:transparent;border:2px solid var(--color-text-muted);color:var(--color-text-muted);padding:.5rem 1rem;border-radius:30px;font-weight:600;cursor:pointer;display:flex;align-items:center;gap:8px;transition:all .2s;font-size:.9rem}.zen-button:hover{border-color:var(--color-text-main);color:var(--color-text-main);background-color:#8080801a;transform:translateY(-2px)}.exit-zen-button{position:fixed;bottom:20px;right:20px;padding:10px 20px;background:var(--color-surface);border:1px solid var(--color-text-muted);border-radius:20px;color:var(--color-text-muted);cursor:pointer;opacity:.5;transition:all .2s;z-index:100;font-weight:600;box-shadow:var(--shadow-md)}.exit-zen-button:hover{opacity:1;color:var(--color-text-main);border-color:var(--color-text-main);transform:scale(1.05)}.help-popup-overlay{position:fixed;top:0;left:0;width:100vw;height:100vh;background-color:#00000080;display:flex;align-items:center;justify-content:center;z-index:200;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);animation:fadeIn .2s ease-out}.help-popup{background-color:var(--color-surface);padding:var(--spacing-lg);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);max-width:400px;width:90%;position:relative;border:1px solid rgba(128,128,128,.1)}.help-item{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-sm);padding-bottom:var(--spacing-sm);border-bottom:1px solid rgba(128,128,128,.1)}.help-item:last-child{border-bottom:none;margin-bottom:0;padding-bottom:0}.shortcut-key{background-color:var(--color-bg);border:1px solid rgba(128,128,128,.2);padding:2px 8px;border-radius:4px;font-family:monospace;font-weight:700;color:var(--color-text-main)}.help-close{position:absolute;top:10px;right:10px;background:none;border:none;cursor:pointer;color:var(--color-text-muted)}.help-close:hover{color:var(--color-text-main)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.app-header-left{display:flex;flex-direction:column}.app-subtitle{font-size:.8rem;font-weight:500;color:var(--color-text-muted)}.link-button{background:none;border:none;padding:0;color:var(--color-primary);cursor:pointer;font-family:inherit;font-size:inherit;text-decoration:none;transition:color .2s}.link-button:hover{color:var(--color-primary-dark);text-decoration:underline}.separator{margin:0 8px;color:#666}.app-subtitle a{color:var(--color-primary);text-decoration:none;transition:color .2s}.app-subtitle a:hover{color:var(--color-primary-dark);text-decoration:underline}.header-controls{display:flex;gap:var(--spacing-sm);align-items:center}.icon-button{background:none;border:none;cursor:pointer;color:var(--color-text-muted);padding:8px;border-radius:50%;transition:all .2s;display:flex;align-items:center;justify-content:center}.icon-button:hover{background-color:#8080801a;color:var(--color-text-main)}.game-mode-toggle{display:flex;background-color:var(--color-bg);padding:2px;border-radius:20px;border:1px solid rgba(128,128,128,.1)}.toggle-option{padding:4px 12px;border-radius:16px;font-size:.85rem;font-weight:600;cursor:pointer;background:transparent;border:none;color:var(--color-text-muted);transition:all .2s}.toggle-option.active{background-color:var(--color-surface);color:var(--color-primary);box-shadow:var(--shadow-sm)}@media(max-height:500px)and (orientation:landscape){.app-header{padding:2px var(--spacing-md);position:absolute;top:0;left:0;right:0;width:100%;z-index:100;background:transparent;pointer-events:none;box-shadow:none}.app-header-left{display:none}.header-controls{pointer-events:auto;margin-left:auto;padding-right:10px}.main-stage{padding:0;flex-direction:column;align-items:center;justify-content:center;gap:0;height:100vh;overflow:hidden;position:relative}.card.sheet-music-card{max-width:95vw;height:100%;max-height:none;flex-direction:column;flex-wrap:nowrap;justify-content:center;align-items:center;padding:0;width:100%;background:transparent;box-shadow:none;border:none;flex-shrink:0}.staff-row{flex-direction:row;justify-content:center;align-items:center;width:100%;margin-top:20px;margin-bottom:0;gap:16px;flex:0 0 auto;z-index:1}.side-hint-note{display:block;font-size:1.5rem;margin-right:0;z-index:10;flex-shrink:0}.sheet-music-container{width:100%;flex:0 0 auto;min-height:180px;transform:scale(1.1);transform-origin:center center;justify-content:center;margin-bottom:-10px;padding-top:0;z-index:1}.card.sheet-music-card.zen-mode .sheet-music-container{margin-bottom:0}.hint-card{margin-top:0;flex:1 1 auto;width:100%;max-width:100%;padding:0 10px;background:transparent;display:flex;flex-direction:row;justify-content:center;align-items:center;gap:8px;min-height:0;max-height:200px}.hint-card .hint-note{display:block;font-size:2rem;margin-bottom:0;flex-shrink:0;font-weight:800;width:4rem;text-align:center}.fretboard-container{transform:none;max-width:none;flex-grow:1;height:100%}.instruction-text{display:none}.feedback-area{opacity:0}.feedback-area:has(.success-message),.feedback-area:has(.error-message){opacity:1}.success-message{color:#fff;font-size:2rem;text-shadow:0 2px 4px rgba(0,0,0,.5)}.settings-footer{margin-top:50px;padding-bottom:50px}.app-container{overflow-y:auto;height:100vh;display:block}.action-row{margin-top:0!important;width:100%;padding-bottom:5px;flex-shrink:0;position:absolute;bottom:2px;z-index:20;pointer-events:none;justify-content:center;gap:20px}.action-row button{pointer-events:auto;background:#ffffffe6;border:1px solid #ccc;box-shadow:0 2px 8px #0000001a}.exit-zen-button{display:block;transform:scale(.8);bottom:45px;right:5px;padding:6px 12px;font-size:.8rem;background:#ffffffe6;border:1px solid #ccc;z-index:100}.hint-button,.skip-button{padding:4px 16px;font-size:.9rem;height:36px}.pitch-monitor-bar{position:absolute;top:5px;left:10px;margin:0;gap:var(--spacing-sm);transform:scale(.7);transform-origin:top left;z-index:100}.mic-button{width:48px;height:48px;background:#ffffffe6}}.fretboard-container{width:100%}.skip-button{background:none;border:2px solid var(--color-text-muted);color:var(--color-text-muted);border-radius:var(--radius-lg);padding:var(--spacing-sm) var(--spacing-md);font-weight:600;cursor:pointer;transition:all .2s ease;display:flex;align-items:center;gap:var(--spacing-xs);font-size:.9rem}.skip-button:hover{border-color:var(--color-text-main);color:var(--color-text-main);background-color:#0000000d}.skip-button:active{transform:scale(.98)}