@import"https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500&display=swap";.header{background:var(--surface);border-bottom:1px solid var(--border);padding:12px 16px;padding-top:calc(12px + env(safe-area-inset-top,0px));display:flex;align-items:center;justify-content:space-between}.header-brand{display:flex;align-items:center;gap:8px}.header-badge{background:var(--orange);color:#fff;font-family:IBM Plex Mono,monospace;font-weight:500;font-size:14px;padding:4px 8px;border-radius:4px}.header-title{font-weight:600;font-size:16px}.header-subtitle{font-family:IBM Plex Mono,monospace;font-size:10px;color:var(--text-sub);text-transform:uppercase;letter-spacing:.1em}.header-actions{display:flex;gap:8px}.header-btn{background:none;border:1px solid var(--border);border-radius:8px;padding:8px;color:var(--text-pri);cursor:pointer;display:flex;align-items:center;justify-content:center;width:36px;height:36px;-webkit-tap-highlight-color:transparent}.header-btn:active{background:var(--border)}.header-btn:focus-visible{outline:2px solid var(--orange);outline-offset:2px}.tab-bar{position:fixed;bottom:0;left:0;right:0;min-height:56px;padding-bottom:env(safe-area-inset-bottom,0px);background:var(--surface);border-top:1px solid var(--border);display:flex;justify-content:space-around;align-items:center;z-index:100}.tab-bar-item{display:flex;flex-direction:column;align-items:center;gap:2px;padding:8px 16px;background:none;border:none;color:var(--text-sub);font-family:Outfit,sans-serif;font-size:11px;cursor:pointer;-webkit-tap-highlight-color:transparent}.tab-bar-item.active{color:var(--orange)}.tab-bar-item:focus-visible{outline:2px solid var(--orange);outline-offset:2px}.toast{position:fixed;bottom:calc(136px + env(safe-area-inset-bottom,0px));left:50%;transform:translate(-50%);background:var(--text-pri);color:var(--bg);padding:10px 20px;border-radius:20px;font-size:13px;font-weight:500;z-index:500;pointer-events:none;transition:opacity .3s ease,transform .3s ease;box-shadow:0 4px 12px #0000004d}.toast--visible{opacity:1;transform:translate(-50%) translateY(0)}.toast--hidden{opacity:0;transform:translate(-50%) translateY(10px)}.install-prompt{position:fixed;bottom:calc(56px + env(safe-area-inset-bottom,0px));left:0;right:0;z-index:150;animation:installSlideUp .3s ease-out}.install-prompt-card{margin:12px;padding:16px;background:var(--surface);border:1px solid var(--border);border-radius:12px;box-shadow:0 -4px 20px #0000004d}.install-prompt-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px}.install-prompt-title{font-size:15px;font-weight:600}.install-prompt-close{background:none;border:none;color:var(--text-sub);font-size:20px;cursor:pointer;padding:4px;line-height:1;min-width:44px;min-height:44px;display:flex;align-items:center;justify-content:center}.install-prompt-close:focus-visible{outline:2px solid var(--orange);outline-offset:2px}.install-prompt-subtitle{font-size:13px;color:var(--text-sub);margin-bottom:10px}.install-prompt-steps{font-size:13px;color:var(--text-sub);line-height:1.6;margin-bottom:14px}.install-prompt-steps strong{color:var(--text-pri)}.install-prompt-icon{display:inline-block;width:18px;height:18px;vertical-align:middle;margin:0 2px}.install-prompt-actions{display:flex;gap:8px}.install-prompt-btn{flex:1;padding:10px 12px;border-radius:8px;font-size:13px;font-weight:500;cursor:pointer;-webkit-tap-highlight-color:transparent;min-height:44px}.install-prompt-btn:focus-visible{outline:2px solid var(--orange);outline-offset:2px}.install-prompt-btn--later{background:var(--orange);color:#fff;border:none}.install-prompt-btn--later:active{opacity:.8}.install-prompt-btn--never{background:transparent;color:var(--text-sub);border:1px solid var(--border)}.install-prompt-btn--never:active{background:var(--border)}@keyframes installSlideUp{0%{transform:translateY(100%);opacity:0}to{transform:translateY(0);opacity:1}}.search-bar-wrapper{background:var(--surface);padding:8px 16px;border-bottom:1px solid var(--border)}.search-bar{position:relative;display:flex;align-items:center}.search-icon{position:absolute;left:12px;display:flex;align-items:center;color:var(--text-sub);pointer-events:none}.search-input{width:100%;background:var(--bg);border:1px solid var(--border);border-radius:10px;padding:10px 40px 10px 38px;font-size:15px;color:var(--text-pri);outline:none;transition:border-color .15s ease;-webkit-appearance:none;-moz-appearance:none;appearance:none}.search-input::placeholder{color:var(--text-sub)}.search-input:focus{border-color:var(--orange)}.search-input::-webkit-search-cancel-button{display:none}.search-clear{position:absolute;right:10px;display:flex;align-items:center;justify-content:center;background:none;border:none;cursor:pointer;color:var(--text-sub);padding:4px;border-radius:50%;transition:color .15s ease}.search-clear:hover{color:var(--text-pri)}.search-clear:focus-visible{outline:2px solid var(--orange);outline-offset:2px}.genre-filter-wrapper{background:var(--bg);border-bottom:1px solid var(--border)}.genre-filter{display:flex;flex-direction:row;gap:8px;overflow-x:auto;-webkit-overflow-scrolling:touch;padding:8px 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var(--orange);outline-offset:2px}.chord-set-card--grid{display:flex;flex-direction:column;min-height:72px;padding:8px 10px;gap:4px}.card-top-row{display:flex;justify-content:space-between;align-items:center}.card-set-number{font-family:IBM Plex Mono,monospace;font-size:12px;font-weight:700;letter-spacing:.05em;line-height:1;color:var(--card-text-strong, rgba(255,255,255,.9))}.card-c-chord{font-family:IBM Plex Mono,monospace;font-size:11px;color:var(--card-text-sub, rgba(255,255,255,.75));flex:1;display:flex;align-items:center}.card-bottom-row{display:flex;align-items:center}.chord-set-card--list{display:flex;align-items:center;height:56px;padding:0 12px;gap:10px}.card-set-number--list{font-family:IBM Plex Mono,monospace;font-size:12px;font-weight:700;letter-spacing:.05em;flex-shrink:0;width:24px;color:var(--card-text-strong, rgba(255,255,255,.9))}.card-chord-preview{font-family:IBM Plex Mono,monospace;font-size:11px;color:var(--card-text-sub, rgba(255,255,255,.75));flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.card-genre-pill{display:inline-block;font-size:10px;font-weight:600;letter-spacing:.04em;padding:2px 7px;border-radius:20px;white-space:nowrap;flex-shrink:0;background:var(--card-pill-bg, rgba(0,0,0,.2));color:var(--card-pill-color, rgba(255,255,255,.9))}.card-favorite-btn{background:none;border:none;padding:4px;margin:0;min-width:44px;min-height:44px;cursor:pointer;display:flex;align-items:center;justify-content:center;color:var(--card-text-sub, rgba(255,255,255,.7));flex-shrink:0;line-height:0;border-radius:4px;transition:color .15s ease}.card-favorite-btn:hover{color:var(--card-text, #fff)}.card-favorite-btn:focus-visible{outline:2px solid var(--orange);outline-offset:2px}.heart-icon--filled{filter:drop-shadow(0 0 2px rgba(232,71,10,.4))}.browse-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;padding:12px 16px}@media (min-width: 768px){.browse-grid{grid-template-columns:repeat(3,1fr)}}.browse-list{display:flex;flex-direction:column;gap:4px;padding:8px 16px}.browse-empty{padding:48px 16px;text-align:center;color:var(--text-sub);font-size:14px}.random-btn{position:fixed;bottom:calc(72px + env(safe-area-inset-bottom,0px));right:16px;width:56px;height:56px;border-radius:50%;background:var(--orange);color:#fff;border:none;display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:90;box-shadow:0 4px 12px #0000004d;-webkit-tap-highlight-color:transparent}.random-btn:active{transform:scale(.95)}.random-btn:focus-visible{outline:2px solid #ffffff;outline-offset:3px}.favorites-tab{padding:16px}.favorites-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.favorites-title{font-size:18px;font-weight:600}.favorites-count{font-size:13px;color:var(--text-sub)}.favorites-copy-btn{padding:8px 14px;border-radius:8px;border:1px solid var(--border);background:var(--surface);color:var(--text-pri);font-size:13px;cursor:pointer}.favorites-copy-btn:focus-visible{outline:2px solid var(--orange);outline-offset:2px}.favorites-empty{text-align:center;padding:60px 20px;color:var(--text-sub);font-size:15px}.key-grid{padding:12px 16px;user-select:none;-webkit-user-select:none}.key-grid-row{display:flex;gap:4px;justify-content:center}.key-grid-row.black-keys{margin-bottom:4px;padding:0 8%}.key-grid-key{display:flex;flex-direction:column;align-items:center;justify-content:center;border:1px solid var(--border);border-radius:8px;cursor:pointer;-webkit-tap-highlight-color:transparent;transition:background-color .1s;min-height:68px;padding:6px 4px;flex:1}.key-grid-key.white{background:var(--surface);max-width:calc((100% - 24px) / 7);color:var(--text-pri)}[data-theme=dark] .key-grid-key.white .key-chord-name{color:#f0f0f0}[data-theme=dark] .key-grid-key.white .key-label{color:#bbb}[data-theme=light] .key-grid-key.white .key-chord-name{color:#111}[data-theme=light] .key-grid-key.white .key-label{color:#555}.key-grid-key.black{background:#2A2A2A;max-width:calc((100% - 20px) / 6)}[data-theme=light] .key-grid-key.black{background:#D0D0D0}.key-grid-key.selected{background:var(--orange)!important;border-color:var(--orange);color:#111}.key-grid-key:focus-visible{outline:2px solid var(--orange);outline-offset:2px}.key-grid-key:active{opacity:.8}.key-grid-spacer{flex:1;max-width:calc((100% - 20px) / 6);visibility:hidden}.key-label{font-family:Outfit,sans-serif;font-size:10px;color:var(--text-sub);margin-bottom:2px}[data-theme=dark] .key-grid-key.black .key-label{color:#bbb}[data-theme=dark] .key-grid-key.black .key-chord-name{color:#ddd}[data-theme=light] .key-grid-key.black .key-label{color:#444}[data-theme=light] .key-grid-key.black .key-chord-name{color:#222}.key-grid-key.selected .key-label{color:#000000b3}.key-grid-key.selected .key-chord-name{color:#111}.key-chord-name{font-family:IBM Plex 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var(--border);border-radius:10px;margin-bottom:10px}.progression-name{font-weight:600;font-size:14px;margin-bottom:2px}.progression-vibe{font-size:12px;color:var(--text-sub);font-style:italic;margin-bottom:10px}.progression-steps{display:flex;align-items:center;gap:6px;flex-wrap:wrap;margin-bottom:12px}.progression-step{display:flex;flex-direction:column;align-items:center;padding:6px 10px;border-radius:8px;min-width:48px}.progression-step-key{font-family:IBM Plex Mono,monospace;font-size:13px;font-weight:600}.progression-step-chord{font-family:IBM Plex Mono,monospace;font-size:11px;margin-top:2px}.progression-step-roman{font-size:10px;opacity:.6;margin-top:1px}.progression-arrow{color:var(--text-sub);font-size:14px}.progression-actions{display:flex;gap:8px}.progression-btn{flex:1;padding:8px 12px;border-radius:8px;border:1px solid var(--border);background:var(--bg);color:var(--text-pri);font-size:13px;font-weight:500;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:6px;-webkit-tap-highlight-color:transparent}.progression-btn:active{opacity:.8}.progression-btn:focus-visible{outline:2px solid var(--orange);outline-offset:2px}.progression-btn--playing{background:var(--orange);color:#fff;border-color:var(--orange)}.progression-list-empty{color:var(--text-sub);font-size:14px}.scratchpad{padding:16px}.scratchpad-steps{display:flex;align-items:center;gap:6px;flex-wrap:wrap;min-height:56px;margin-bottom:12px}.scratchpad-chip{display:flex;flex-direction:column;align-items:center;padding:8px 10px;border-radius:8px;cursor:pointer;border:none;min-width:48px;-webkit-tap-highlight-color:transparent}.scratchpad-chip:active{opacity:.7}.scratchpad-chip:focus-visible{outline:2px solid var(--orange);outline-offset:2px}.scratchpad-chip-chord{font-family:IBM Plex 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var(--border);background:var(--bg);color:var(--text-pri);font-size:18px;cursor:pointer;display:flex;align-items:center;justify-content:center}.scratchpad-tempo-btn:focus-visible{outline:2px solid var(--orange);outline-offset:2px}.scratchpad-tempo-value{font-family:IBM Plex Mono,monospace;font-size:14px;min-width:70px;text-align:center}.scratchpad-mode-btn{display:flex;align-items:center;gap:4px;padding:6px 10px;border-radius:16px;border:1px solid var(--border);background:var(--bg);color:var(--text-sub);font-size:11px;font-weight:500;cursor:pointer;-webkit-tap-highlight-color:transparent}.scratchpad-mode-btn--active{background:var(--orange);color:#fff;border-color:var(--orange)}.scratchpad-mode-btn:focus-visible{outline:2px solid var(--orange);outline-offset:2px}.scratchpad-step-count{text-align:center;font-size:11px;color:var(--text-sub)}.similar-sets{padding:16px}.similar-sets-title{font-size:13px;font-weight:600;color:var(--text-sub);text-transform:uppercase;letter-spacing:.05em;margin-bottom:12px}.similar-sets-row{display:flex;gap:10px;overflow-x:auto;-webkit-overflow-scrolling:touch;padding-bottom:4px}.similar-set-card{flex-shrink:0;width:120px;min-height:44px;padding:10px;border-radius:8px;cursor:pointer;border:none;text-align:left;-webkit-tap-highlight-color:transparent;color:var(--card-text, white)}.similar-set-card:focus-visible{outline:2px solid var(--orange);outline-offset:2px}.similar-set-card:active{opacity:.8}.similar-set-number{font-family:IBM Plex Mono,monospace;font-size:14px;font-weight:700;margin-bottom:4px;color:var(--card-text-strong, rgba(255, 255, 255, .9))}.similar-set-genre{font-size:10px;margin-bottom:6px;color:var(--card-text-sub, rgba(255, 255, 255, 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slideUp{0%{transform:translateY(100%)}to{transform:translateY(0)}}.detail-header{display:flex;align-items:center;justify-content:space-between;padding:16px;border-bottom:1px solid var(--border);position:sticky;top:0;background:var(--bg);z-index:10}.detail-header-left{display:flex;align-items:center;gap:8px}.detail-set-number{font-family:IBM Plex Mono,monospace;font-weight:500;font-size:18px}.detail-genre-tag{font-size:12px;padding:3px 10px;border-radius:12px}.detail-header-actions{display:flex;gap:8px}.detail-action-btn{background:none;border:1px solid var(--border);border-radius:8px;width:44px;height:44px;display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--text-pri);-webkit-tap-highlight-color:transparent}.detail-action-btn:active{background:var(--border)}.detail-action-btn:focus-visible{outline:2px solid var(--orange);outline-offset:2px}.detail-action-btn--active{background:#ff6b00;border-color:#ff6b00;color:#fff}.detail-action-btn--active:active{background:#e05e00}.detail-section{padding:16px;border-top:1px solid var(--border)}.detail-section-title{font-size:13px;font-weight:600;color:var(--text-sub);text-transform:uppercase;letter-spacing:.05em;margin-bottom:12px}.style-guide-tab{padding:16px}.style-guide-title{font-size:18px;font-weight:600;margin-bottom:4px}.style-guide-subtitle{font-size:13px;color:var(--text-sub);margin-bottom:20px}.style-category{margin-bottom:24px}.style-category-title{font-family:IBM Plex Mono,monospace;font-size:11px;font-weight:600;letter-spacing:.12em;color:var(--text-sub);margin:0 0 8px 2px;text-transform:uppercase}.style-bank-card{background:var(--surface);border:1px solid var(--border);border-radius:10px;margin-bottom:10px;overflow:hidden}.style-bank-header{display:flex;align-items:baseline;gap:10px;width:100%;padding:14px;background:none;border:0;text-align:left;cursor:pointer;color:inherit;font:inherit}.style-bank-header:focus-visible{outline:2px solid var(--orange);outline-offset:-2px}.style-bank-number{font-family:IBM Plex Mono,monospace;font-size:20px;font-weight:700;color:var(--orange);min-width:1.5ch}.style-bank-name{font-size:15px;font-weight:600;flex:1}.style-bank-chevron{font-size:14px;color:var(--text-sub);margin-left:auto}.style-bank-variations{list-style:decimal inside;margin:0;padding:0 14px 14px;font-family:IBM Plex Mono,monospace;font-size:12px;color:var(--text-pri);line-height:1.7}.style-bank-variations li{padding-left:4px}.style-bank-blank-note{list-style:none;font-family:inherit;font-size:13px;color:var(--text-sub);font-style:italic;padding-left:0}.style-guide-legend{margin-top:24px;padding:12px 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auto}.settings-title{font-size:20px;font-weight:600;margin-bottom:20px}.settings-section{margin-bottom:24px}.settings-section-title{font-size:12px;font-weight:600;color:var(--text-sub);text-transform:uppercase;letter-spacing:.06em;margin-bottom:10px}.settings-row{display:flex;justify-content:space-between;align-items:center;padding:12px;background:var(--surface);border:1px solid var(--border);border-radius:10px;margin-bottom:8px;gap:12px}.settings-row-label{flex:1;min-width:0}.settings-row-name{display:block;font-size:14px;font-weight:500;margin-bottom:2px}.settings-row-desc{display:block;font-size:12px;color:var(--text-sub);line-height:1.3}.settings-toggle-group{display:flex;border:1px solid var(--border);border-radius:8px;overflow:hidden;flex-shrink:0}.settings-toggle-btn{padding:8px 14px;font-size:13px;font-weight:500;border:none;background:var(--bg);color:var(--text-sub);cursor:pointer;-webkit-tap-highlight-color:transparent;min-height:44px}.settings-toggle-btn+.settings-toggle-btn{border-left:1px solid var(--border)}.settings-toggle-btn--active{background:var(--orange);color:#fff}.settings-toggle-btn:focus-visible{outline:2px solid var(--orange);outline-offset:-2px}.settings-bpm-control{display:flex;align-items:center;gap:10px;flex-shrink:0}.settings-bpm-btn{width:36px;height:36px;border-radius:50%;border:1px solid var(--border);background:var(--bg);color:var(--text-pri);font-size:18px;cursor:pointer;display:flex;align-items:center;justify-content:center;min-height:44px;min-width:44px}.settings-bpm-btn:focus-visible{outline:2px solid var(--orange);outline-offset:2px}.settings-bpm-value{font-family:IBM Plex Mono,monospace;font-size:15px;font-weight:500;min-width:36px;text-align:center}.settings-install-instructions{padding:12px;background:var(--surface);border:1px solid var(--border);border-radius:10px;margin-top:-4px;margin-bottom:8px}.settings-reset-prompt-btn{margin-top:10px;padding:8px 14px;font-size:12px;color:var(--text-sub);background:var(--bg);border:1px solid var(--border);border-radius:6px;cursor:pointer}.settings-reset-prompt-btn:active{background:var(--border)}.settings-reset-prompt-btn:focus-visible{outline:2px solid var(--orange);outline-offset:2px}.settings-about{font-size:13px;color:var(--text-sub);line-height:1.5;padding:12px;background:var(--surface);border:1px solid var(--border);border-radius:10px}.user-guide-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:200;background:rgba(0,0,0,.5);display:flex;flex-direction:column;justify-content:flex-end}.user-guide-modal{background:var(--bg);border-radius:16px 16px 0 0;max-height:95vh;overflow-y:auto;-webkit-overflow-scrolling:touch;animation:guideSlideUp .3s ease-out}@keyframes guideSlideUp{0%{transform:translateY(100%)}to{transform:translateY(0)}}.user-guide-header{display:flex;align-items:center;justify-content:space-between;padding:16px;border-bottom:1px solid var(--border);position:sticky;top:0;background:var(--bg);z-index:10}.user-guide-title{font-size:18px;font-weight:600}.user-guide-close{background:none;border:1px solid var(--border);border-radius:8px;width:44px;height:44px;display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--text-pri);font-size:18px}.user-guide-close:focus-visible{outline:2px solid var(--orange);outline-offset:2px}.user-guide-content{padding:16px}.user-guide-section{background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:14px;margin-bottom:10px}.user-guide-section-title{font-size:12px;font-weight:600;color:var(--orange);text-transform:uppercase;letter-spacing:.06em;margin-bottom:8px}.user-guide-text{font-size:13px;color:var(--text-sub);line-height:1.6}.user-guide-text strong{color:var(--text-pri)}.error-fallback{min-height:100vh;min-height:100dvh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px;background:var(--bg);color:var(--text-pri);text-align:center;gap:12px}.error-fallback h1{font-size:20px;margin:0;color:var(--text-pri)}.error-fallback p{font-size:14px;color:var(--text-sub);margin:0;max-width:320px}.error-fallback button{margin-top:16px;background:var(--orange);color:#fff;border:none;border-radius:20px;padding:10px 24px;font-size:14px;font-weight:600;cursor:pointer}.error-fallback button:focus-visible{outline:2px solid var(--text-pri);outline-offset:2px}.error-fallback details{margin-top:24px;max-width:400px;font-size:12px;color:var(--text-sub)}.error-fallback details pre{white-space:pre-wrap;text-align:left;padding:8px;border:1px solid var(--border);border-radius:8px;overflow-x:auto}:root{--orange: #E8470A;--dark-bg: #111111;--dark-surface: #1A1A1A;--dark-border: #2B2B2B;--light-bg: #F4F3F1;--light-surface: #FFFFFF;--light-border: #E2E2E2}[data-theme=dark]{--bg: var(--dark-bg);--surface: var(--dark-surface);--border: var(--dark-border);--text-pri: #F0F0F0;--text-sub: #A0A0A0}[data-theme=light]{--bg: var(--light-bg);--surface: var(--light-surface);--border: var(--light-border);--text-pri: #111111;--text-sub: #666666}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:Outfit,sans-serif;background:var(--bg);color:var(--text-pri);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#root{padding-bottom:calc(56px + env(safe-area-inset-bottom,0px))}.mono{font-family:IBM Plex Mono,monospace}.sticky-top{position:sticky;top:0;z-index:50}