*,:after,:before{--tw-border-spacing-x:0;--tw-border-spacing-y:0;--tw-translate-x:0;--tw-translate-y:0;--tw-rotate:0;--tw-skew-x:0;--tw-skew-y:0;--tw-scale-x:1;--tw-scale-y:1;--tw-pan-x: ;--tw-pan-y: ;--tw-pinch-zoom: ;--tw-scroll-snap-strictness:proximity;--tw-gradient-from-position: ;--tw-gradient-via-position: ;--tw-gradient-to-position: ;--tw-ordinal: ;--tw-slashed-zero: ;--tw-numeric-figure: ;--tw-numeric-spacing: ;--tw-numeric-fraction: ;--tw-ring-inset: ;--tw-ring-offset-width:0px;--tw-ring-offset-color:#fff;--tw-ring-color:rgb(59 130 246/0.5);--tw-ring-offset-shadow:0 0 #0000;--tw-ring-shadow:0 0 #0000;--tw-shadow:0 0 #0000;--tw-shadow-colored:0 0 #0000;--tw-blur: ;--tw-brightness: ;--tw-contrast: ;--tw-grayscale: ;--tw-hue-rotate: ;--tw-invert: ;--tw-saturate: ;--tw-sepia: ;--tw-drop-shadow: ;--tw-backdrop-blur: ;--tw-backdrop-brightness: ;--tw-backdrop-contrast: ;--tw-backdrop-grayscale: ;--tw-backdrop-hue-rotate: ;--tw-backdrop-invert: ;--tw-backdrop-opacity: ;--tw-backdrop-saturate: ;--tw-backdrop-sepia: ;--tw-contain-size: ;--tw-contain-layout: ;--tw-contain-paint: ;--tw-contain-style: }::backdrop{--tw-border-spacing-x:0;--tw-border-spacing-y:0;--tw-translate-x:0;--tw-translate-y:0;--tw-rotate:0;--tw-skew-x:0;--tw-skew-y:0;--tw-scale-x:1;--tw-scale-y:1;--tw-pan-x: ;--tw-pan-y: ;--tw-pinch-zoom: ;--tw-scroll-snap-strictness:proximity;--tw-gradient-from-position: ;--tw-gradient-via-position: ;--tw-gradient-to-position: ;--tw-ordinal: ;--tw-slashed-zero: ;--tw-numeric-figure: ;--tw-numeric-spacing: ;--tw-numeric-fraction: ;--tw-ring-inset: ;--tw-ring-offset-width:0px;--tw-ring-offset-color:#fff;--tw-ring-color:rgb(59 130 246/0.5);--tw-ring-offset-shadow:0 0 #0000;--tw-ring-shadow:0 0 #0000;--tw-shadow:0 0 #0000;--tw-shadow-colored:0 0 #0000;--tw-blur: ;--tw-brightness: ;--tw-contrast: ;--tw-grayscale: ;--tw-hue-rotate: ;--tw-invert: ;--tw-saturate: ;--tw-sepia: ;--tw-drop-shadow: ;--tw-backdrop-blur: ;--tw-backdrop-brightness: ;--tw-backdrop-contrast: ;--tw-backdrop-grayscale: ;--tw-backdrop-hue-rotate: ;--tw-backdrop-invert: ;--tw-backdrop-opacity: ;--tw-backdrop-saturate: ;--tw-backdrop-sepia: ;--tw-contain-size: ;--tw-contain-layout: ;--tw-contain-paint: ;--tw-contain-style: }/*
! tailwindcss v3.4.19 | MIT License | https://tailwindcss.com
*/*,:after,:before{box-sizing:border-box;border:0 solid #e5e7eb}:after,:before{--tw-content:""}:host,html{line-height:1.5;-webkit-text-size-adjust:100%;-moz-tab-size:4;-o-tab-size:4;tab-size:4;font-family:ui-sans-serif,system-ui,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji;font-feature-settings:normal;font-variation-settings:normal;-webkit-tap-highlight-color:transparent}body{margin:0;line-height:inherit}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,pre,samp{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace;font-feature-settings:normal;font-variation-settings:normal;font-size:1em}small{font-size:80%}sub,sup{font-size:75%;line-height:0;position:relative;vertical-align:baseline}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}button,input,optgroup,select,textarea{font-family:inherit;font-feature-settings:inherit;font-variation-settings:inherit;font-size:100%;font-weight:inherit;line-height:inherit;letter-spacing:inherit;color:inherit;margin:0;padding:0}button,select{text-transform:none}button,input:where([type=button]),input:where([type=reset]),input:where([type=submit]){-webkit-appearance:button;background-color:transparent;background-image:none}:-moz-focusring{outline:auto}:-moz-ui-invalid{box-shadow:none}progress{vertical-align:baseline}::-webkit-inner-spin-button,::-webkit-outer-spin-button{height:auto}[type=search]{-webkit-appearance:textfield;outline-offset:-2px}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-file-upload-button{-webkit-appearance:button;font:inherit}summary{display:list-item}blockquote,dd,dl,figure,h1,h2,h3,h4,h5,h6,hr,p,pre{margin:0}fieldset{margin:0}fieldset,legend{padding:0}menu,ol,ul{list-style:none;margin:0;padding:0}dialog{padding:0}textarea{resize:vertical}input::-moz-placeholder,textarea::-moz-placeholder{opacity:1;color:#9ca3af}input::placeholder,textarea::placeholder{opacity:1;color:#9ca3af}[role=button],button{cursor:pointer}:disabled{cursor:default}audio,canvas,embed,iframe,img,object,svg,video{display:block;vertical-align:middle}img,video{max-width:100%;height:auto}[hidden]:where(:not([hidden=until-found])){display:none}.visible{visibility:visible}.invisible{visibility:hidden}.collapse{visibility:collapse}.fixed{position:fixed}.absolute{position:absolute}.relative{position:relative}.block{display:block}.inline-block{display:inline-block}.inline{display:inline}.flex{display:flex}.inline-flex{display:inline-flex}.table{display:table}.grid{display:grid}.hidden{display:none}.transform{transform:translate(var(--tw-translate-x),var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}.border{border-width:1px}.uppercase{text-transform:uppercase}.outline{outline-style:solid}.blur{--tw-blur:blur(8px)}.blur,.filter{filter:var(--tw-blur) var(--tw-brightness) var(--tw-contrast) var(--tw-grayscale) var(--tw-hue-rotate) var(--tw-invert) var(--tw-saturate) var(--tw-sepia) var(--tw-drop-shadow)}.backdrop-filter{backdrop-filter:var(--tw-backdrop-blur) var(--tw-backdrop-brightness) var(--tw-backdrop-contrast) var(--tw-backdrop-grayscale) var(--tw-backdrop-hue-rotate) var(--tw-backdrop-invert) var(--tw-backdrop-opacity) var(--tw-backdrop-saturate) var(--tw-backdrop-sepia)}.transition{transition-property:color,background-color,border-color,text-decoration-color,fill,stroke,opacity,box-shadow,transform,filter,backdrop-filter;transition-timing-function:cubic-bezier(.4,0,.2,1);transition-duration:.15s}.ease-out{transition-timing-function:cubic-bezier(0,0,.2,1)}body,html{background-color:#F5EDD8;overscroll-behavior:none}:root{--topbar-h:calc(52px + env(safe-area-inset-top, 0px));--footer-h:0px}html{scroll-padding-top:var(--topbar-h)}.fixed-top{position:fixed;top:0;left:0;right:0}.with-bars{padding-top:var(--topbar-h)}.page-col{display:flex;flex-direction:column;min-height:100vh;min-height:100dvh}.page-main{flex:1 0 auto}.site-footer{flex:none;justify-content:space-between;gap:8px;padding:18px 24px calc(18px + env(safe-area-inset-bottom, 0px));border-top:1px solid rgba(0,0,0,.06)}.site-footer,.site-footer-links{display:flex;align-items:center;flex-wrap:wrap}.site-footer-links{gap:12px}.site-footer-tagline{font-size:.7rem;color:#666;font-weight:500}.site-footer-link{font-size:.7rem;color:#665e54}.privacy-link{font-weight:700}.support-footer-button{padding:0;border:0;background:none;font-family:inherit;line-height:inherit;cursor:pointer}.support-backdrop{position:fixed;inset:0;z-index:300;display:flex;align-items:center;justify-content:center;padding:20px;background:rgba(20,16,10,.5)}.support-dialog{display:flex;flex-direction:column;align-items:center;gap:16px;width:min(360px,100%);max-height:calc(100dvh - 40px);overflow-y:auto;padding:28px 24px 20px;border-radius:20px;background:#FFFDF7;color:#1a1a2e;text-align:center;box-shadow:0 16px 48px rgba(0,0,0,.18)}.support-dialog h2{margin:0;font-size:1.15rem;font-weight:800}.support-qr{flex:none;display:block;background:#fff}.support-dialog p{margin:0;font-size:.9rem;line-height:1.5;color:#3a4847}.support-device-link{font-size:.8rem;color:#665e54;text-decoration:underline;text-underline-offset:3px}.support-close{min-height:44px;padding:0 24px;border:1px solid #e8ddd0;border-radius:10px;background:#fff;font:inherit;font-size:.9rem;cursor:pointer}:where(a,button,input,[role=button]):focus-visible{outline:3px solid #0b6bcb!important;outline-offset:3px!important}.upload-hero-title{white-space:normal;overflow-wrap:balance;text-wrap:balance}.upload-hero-title-bilingual{display:grid;gap:.18em}.upload-hero-title-en,.upload-hero-title-ko{display:block}.upload-hero-title-en{font-size:.52em;line-height:1.06;color:#5d625f;font-weight:850}.upload-hero-title-ko{line-height:1.02}.fretboard-section{width:100%;background:transparent;margin:0;padding:20px .75rem 0}@media (min-width:640px){.fretboard-section{padding:24px 1.25rem 0}}@media (min-width:1024px){.fretboard-section{padding:28px 2rem 0}}.capo-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}@media (min-width:768px){.capo-grid{grid-template-columns:repeat(8,1fr)}}@media (max-width:640px){.upload-hero{padding:38px 16px 16px!important}.upload-hero-title{font-size:clamp(1.45rem,7.2vw,2.12rem)!important;line-height:1.08!important;max-width:100%!important;margin-bottom:18px!important;white-space:normal}.upload-hero-title-bilingual{gap:.2em}.upload-hero-title-en{font-size:.56em}.primary-upload-cta{width:min(100%,340px);justify-content:center;padding:14px 18px!important;min-height:52px}.ai-option{width:auto;box-sizing:border-box;padding:8px 12px!important}.active-title-wrap{padding:22px 18px 0!important}.active-title{font-size:1.65rem!important;line-height:1.12!important}.active-info-bar{padding:16px 14px 12px!important}.fretboard-section{padding-top:14px}.transpose-selector{padding:0 12px!important}.transpose-panel{border-radius:12px!important;padding:12px!important}.capo-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:7px}.result-wrap{padding:0 10px!important;margin-top:24px!important;margin-bottom:34px!important}.result-card{border-radius:12px!important;padding:12px!important}}@media (max-width:380px){.upload-hero-title{font-size:1.36rem!important}.primary-upload-cta{font-size:.9rem!important}}.hamburger-backdrop{position:fixed;inset:0;z-index:98;background:rgba(0,0,0,.3);opacity:0;pointer-events:none;transition:opacity .25s ease}.hamburger-backdrop.open{opacity:1;pointer-events:auto}.hamburger-menu{position:fixed;top:0;left:0;bottom:0;width:260px;z-index:99;background:rgba(240,235,225,.98);backdrop-filter:blur(12px);border-right:1px solid rgba(0,0,0,.07);box-shadow:4px 0 20px rgba(0,0,0,.08);transform:translateX(-100%);transition:transform .25s ease;overflow:hidden}.hamburger-menu.open{transform:translateX(0)}.user-dropdown{position:absolute;top:44px;right:0;min-width:180px;background:white;border-radius:12px;box-shadow:0 8px 32px rgba(0,0,0,.12);border:1px solid rgba(0,0,0,.08);padding:8px 0;z-index:200}.m-only{display:none}@media (max-width:640px){.d-only{display:none!important}.app-root,body,html{background-color:#EDE2C4!important}.app-root{overflow-x:clip!important}:root:has(.m-nav){--topbar-h:calc(56px + env(safe-area-inset-top, 0px))}.m-nav{z-index:97;display:flex;align-items:center;gap:11px;height:calc(56px + env(safe-area-inset-top, 0px));padding:env(safe-area-inset-top,0) 16px 0;background:#FFFDF7;border-bottom:1px solid rgba(26,26,46,.13)}.m-nav[data-screen=home]{padding-left:7px}.m-spacer{flex:1}.m-nav-right{display:flex;align-items:center;gap:10px}.m-icon-btn{width:44px;height:44px;flex:none;display:grid;place-items:center;background:none;border:0;border-radius:10px;cursor:pointer;color:#3a4847;transition:background-color .15s,color .15s}.m-icon-btn:active{background:rgba(26,26,46,.06);color:#1a1a2e}.m-home{min-height:calc(100dvh - var(--topbar-h) - var(--footer-h))}.m-hero,.m-home{display:flex;flex-direction:column}.m-hero{margin:0;padding:26px 20px 0;gap:6px;align-items:flex-start;text-align:left}.m-kicker{font-size:1.06rem;color:#5d625f;letter-spacing:-.01em}.m-headline,.m-kicker{display:block;font-weight:800}.m-headline{font-size:1.8rem;color:#171923;letter-spacing:-.02em;line-height:1.2;text-wrap:balance}.m-dropwrap{flex:1;min-height:0;display:flex;padding:20px}.m-drop{flex:1;position:relative;overflow:hidden;cursor:pointer;background:#FFFDF7;border:1px solid rgba(26,26,46,.13);border-radius:18px;box-shadow:0 2px 0 -1px #FFFDF7,0 4px 0 -1px rgba(26,26,46,.13),0 14px 26px -14px rgba(26,26,46,.3);display:flex;align-items:center;justify-content:center;font:inherit;color:inherit;padding:0;transition:transform .18s ease,box-shadow .18s ease}.m-drop:active{transform:translateY(1px)}.m-ruled{position:absolute;inset:0;opacity:.45;background:repeating-linear-gradient(180deg,transparent 0 14px,rgba(26,26,46,.09) 14px 15px);-webkit-mask-image:linear-gradient(180deg,transparent,#000 16%,#000 84%,transparent);mask-image:linear-gradient(180deg,transparent,#000 16%,#000 84%,transparent)}.m-drop-mid{position:relative;display:flex;flex-direction:column;align-items:center;gap:14px;text-align:center;padding:0 24px}.m-cta{min-height:58px;padding:0 30px;border-radius:14px;display:inline-flex;align-items:center;gap:10px;font-size:1.2rem;font-weight:700;color:#fff;background:linear-gradient(180deg,#E05D00,#C84B00);box-shadow:0 4px 14px -4px rgba(224,93,0,.7)}.m-sub{font-size:.8rem;color:#a09070;line-height:1.55}.m-home-error{display:flex;align-items:center;gap:6px;margin:-8px 20px 16px;color:#d4183d;font-size:.78rem;font-weight:600}.m-result{display:flex;flex-direction:column;height:calc(100dvh - var(--topbar-h))}.m-sheet{flex:1;min-height:0;overflow-y:auto;overscroll-behavior:contain;padding:10px 14px 8px}.m-page{position:relative;overflow:hidden;background:#fff;border:1px solid rgba(26,26,46,.13);border-radius:12px}.m-page img{display:block;width:100%;height:auto}.m-scan{position:absolute;inset:0;pointer-events:none;overflow:hidden}.m-scan:after{content:"";position:absolute;left:0;right:0;height:38%;top:-40%;background:linear-gradient(180deg,transparent,rgba(224,93,0,.1) 60%,rgba(224,93,0,.22));animation:m-scan 1.4s linear infinite}.m-board{flex:none;background:#FFFDF7;border-top:1px solid rgba(26,26,46,.13);padding:8px 0 calc(10px + env(safe-area-inset-bottom, 0px));box-shadow:0 -8px 20px -14px rgba(26,26,46,.35)}.m-bhead{display:flex;align-items:center;gap:8px;padding:0 16px 4px;min-height:28px;font-size:.84rem;color:#1a1a2e}.m-ok{color:#28a860;font-weight:800}.m-muted{color:#3a4847}.m-small{font-size:.76rem}.m-right{margin-left:auto}.m-err{display:inline-flex;align-items:center;gap:6px}.m-board-error,.m-err{color:#d4183d;font-weight:600}.m-board-error{margin:0 20px 8px;font-size:.76rem}.m-pill{padding:3px 11px;border-radius:999px;background:rgba(26,26,46,.07);font-size:.86rem;font-weight:700}.m-pill.m-to{background:rgba(224,93,0,.14);color:#E05D00}.m-arrow{color:#a09070}.m-spin{width:16px;height:16px;border-radius:50%;border:2px solid rgba(224,93,0,.25);border-top-color:#e05d00;animation:m-rot .8s linear infinite;flex:none}.m-spin-sm{width:13px;height:13px}.m-fretbox{max-width:300px;margin:0 auto}.m-controls{display:flex;align-items:center;gap:8px;margin:6px 14px 0}.m-stepper{flex:1;min-width:0;display:grid;grid-template-columns:44px 1fr 44px;align-items:center;gap:4px}.m-sq{height:44px;border-radius:12px;border:1px solid rgba(26,26,46,.13);background:#fff;font-family:inherit;font-size:1.35rem;font-weight:700;color:#1a1a2e;cursor:pointer;transition:background-color .15s,border-color .15s}.m-sq:disabled{opacity:.35;cursor:not-allowed}.m-val{text-align:center}.m-val small{display:block;font-size:.62rem;line-height:1.15;font-weight:600;color:#a09070;text-wrap:balance}.m-val b{white-space:nowrap;font-size:1.05rem;font-weight:700;color:#1a1a2e;font-variant-numeric:tabular-nums}.m-seg{flex:none;display:flex;background:rgba(26,26,46,.06);border-radius:12px;padding:3px}.m-seg button{flex:1;min-height:38px;padding:0 10px;border:0;background:none;border-radius:9px;cursor:pointer;font-family:inherit;font-size:.82rem;font-weight:700;color:#3a4847;transition:background-color .15s,color .15s,opacity .15s}.m-seg button[aria-pressed=true]{background:#FFFDF7;color:#1a1a2e;box-shadow:0 1px 3px rgba(26,26,46,.14)}.m-acts{display:flex;gap:8px;margin:6px 14px 0}.m-btn{flex:1;min-height:44px;border-radius:12px;cursor:pointer;font-family:inherit;font-size:.9rem;font-weight:700;display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;transition:opacity .15s,filter .15s}.m-btn-ghost{background:#FFFDF7;border-color:rgba(26,26,46,.13);color:#1a1a2e}.m-btn-primary{background:linear-gradient(180deg,#E05D00,#C84B00);color:#fff;box-shadow:0 4px 12px -4px rgba(224,93,0,.65)}.m-board button:disabled{opacity:.4;cursor:not-allowed}.m-board .m-sq:disabled{opacity:.35}.result-wrap{margin-top:12px!important}.chord-editor{margin-top:0!important;padding-top:0!important;border-top:0!important}}@keyframes m-scan{to{top:100%}}@keyframes m-rot{to{transform:rotate(1turn)}}@media (max-width:640px) and (prefers-reduced-motion:reduce){.m-scan:after,.m-spin{animation:none}.m-btn,.m-drop,.m-seg button,.m-sq{transition:none}}.guide-backdrop{position:fixed;inset:0;z-index:300;display:flex;align-items:center;justify-content:center;padding:16px;background:rgba(20,16,10,.5)}.guide-dialog{width:min(380px,100%);max-height:calc(100dvh - 32px);overflow-y:auto;padding:32px 24px 20px;border-radius:20px;background:#FFFDF7;color:#1a1a2e;text-align:center;box-shadow:0 16px 48px rgba(0,0,0,.18)}.guide-icon{margin-bottom:20px;font-size:3rem;line-height:1;color:#9c3d00}.guide-text{display:flex;flex-direction:column;gap:10px}.guide-count{margin:0;font-size:.78rem;font-weight:700;color:#786b53;font-variant-numeric:tabular-nums}.guide-title{margin:0;font-size:1.3rem;line-height:1.3;font-weight:800}.guide-desc{margin:0;min-height:3em;font-size:.9rem;line-height:1.5;color:#3a4847}.guide-dots{display:flex;justify-content:center;margin:12px 0}.guide-dots button{width:44px;height:44px;padding:0;border:0;background:none;cursor:pointer;display:grid;place-items:center}.guide-dots span{width:10px;height:10px;border-radius:50%;background:#e8ddd0}.guide-dots button.on span{background:#E05D00}.guide-actions{display:flex;gap:10px}.guide-actions button{flex:1;min-height:48px;border-radius:12px;cursor:pointer;font:inherit;font-size:.95rem;font-weight:700}.guide-prev{border:1px solid rgba(26,26,46,.13);background:#fff;color:#3a4847}.guide-prev:disabled{opacity:.45;cursor:default}.guide-next{border:0;color:#fff;background:#a34200}.guide-secondary{display:flex;justify-content:space-between;margin-top:10px}.guide-dismiss,.guide-skip{min-height:44px;padding:0 4px;border:0;background:none;cursor:pointer;font:inherit;font-size:.82rem;font-weight:600;color:#6b6558}.guide-dismiss{text-decoration:underline;text-underline-offset:3px}@media (max-width:640px){:root:has(.site-footer){--footer-h:calc(44px + env(safe-area-inset-bottom, 0px))}.site-footer{height:var(--footer-h);flex-wrap:nowrap;gap:12px;padding:0 16px env(safe-area-inset-bottom,0);background:#FFFDF7;border-top:0;box-shadow:0 -1px 0 rgba(26,26,46,.13)}.site-footer-tagline{display:none}.site-footer-links{flex-wrap:nowrap;gap:4px}.site-footer-link{display:inline-flex;padding:0 8px}.site-footer-link,.support-menu-link{align-items:center;min-height:44px;font-size:.74rem}.support-menu-link{display:flex;padding:0 24px;color:#665e54}}