:root{--font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Helvetica, sans-serif;--transition-smooth: all .22s cubic-bezier(.16, 1, .3, 1);--safe-top: env(safe-area-inset-top, 0px);--safe-bottom: env(safe-area-inset-bottom, 0px);--min-tap: 48px}[data-theme=dark]{--bg-primary: #0d0e12;--bg-secondary: #16171e;--bg-card: #1c1e27;--bg-elevated: #242633;--border-color: #2b2e3e;--border-subtle: #20222e;--accent: #6366f1;--accent-hover: #4f46e5;--accent-glow: rgba(99, 102, 241, .25);--text-main: #f8fafc;--text-muted: #94a3b8;--text-dim: #64748b;--svg-bg: #14151c;--svg-string: #2d3040;--svg-bar: #474b64;--badge-bg: #1f212d;--badge-border: #6366f1;--badge-text: #ffffff;--floating-bg: rgba(22, 23, 30, .92);--shadow-elevation: 0 16px 40px rgba(0, 0, 0, .6)}[data-theme=medium]{--bg-primary: #181c24;--bg-secondary: #202530;--bg-card: #282f3d;--bg-elevated: #323b4c;--border-color: #394356;--border-subtle: #2b3342;--accent: #38bdf8;--accent-hover: #0284c7;--accent-glow: rgba(56, 189, 248, .25);--text-main: #f1f5f9;--text-muted: #a0aec0;--text-dim: #718096;--svg-bg: #1d222c;--svg-string: #374254;--svg-bar: #526079;--badge-bg: #27303f;--badge-border: #38bdf8;--badge-text: #ffffff;--floating-bg: rgba(32, 37, 48, .92);--shadow-elevation: 0 16px 40px rgba(0, 0, 0, .45)}[data-theme=light]{--bg-primary: #f1f5f9;--bg-secondary: #ffffff;--bg-card: #f8fafc;--bg-elevated: #e2e8f0;--border-color: #cbd5e1;--border-subtle: #e2e8f0;--accent: #4f46e5;--accent-hover: #4338ca;--accent-glow: rgba(79, 70, 229, .18);--text-main: #0f172a;--text-muted: #64748b;--text-dim: #94a3b8;--svg-bg: #ffffff;--svg-string: #cbd5e1;--svg-bar: #94a3b8;--badge-bg: #eef2ff;--badge-border: #6366f1;--badge-text: #1e1b4b;--floating-bg: rgba(255, 255, 255, .94);--shadow-elevation: 0 16px 40px rgba(15, 23, 42, .12)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}html,body{height:100%;width:100%;overflow:hidden;overscroll-behavior-y:contain}body{font-family:var(--font-family);background-color:var(--bg-primary);color:var(--text-main);line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}button,input,select,textarea{font:inherit;color:inherit}button{cursor:pointer;border:none;background:none;display:inline-flex;align-items:center;justify-content:center;touch-action:manipulation;min-height:38px}.tap-target{min-height:var(--min-tap);min-width:var(--min-tap)}input[type=range]{cursor:pointer;accent-color:var(--accent)}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-dim)}header.top-bar{padding:0 16px;background:var(--bg-secondary);border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between;gap:14px;flex-shrink:0;z-index:10;height:48px;user-select:none}.top-left-controls{display:flex;align-items:center;gap:12px;flex:1;max-width:520px}.desktop-traffic-lights{display:flex;align-items:center;gap:7px;padding-right:4px}.traffic-dot{width:11px;height:11px;border-radius:50%;display:inline-block}.dot-close{background:#ff5f56;border:1px solid #e0443e}.dot-min{background:#ffbd2e;border:1px solid #dea123}.dot-max{background:#27c93f;border:1px solid #1aab29}.title-input-wrapper{display:flex;align-items:center;gap:8px;flex:1;background:var(--bg-primary);border:1px solid var(--border-color);border-radius:6px;padding:0 10px;height:32px;transition:var(--transition-smooth)}.title-input-wrapper:focus-within{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}.title-input-icon{font-size:.85rem}.song-name-input{background:transparent;border:none;color:var(--text-main);font-size:.85rem;font-weight:600;flex:1;outline:none;height:100%}.theme-picker{display:flex;background:var(--bg-primary);border:1px solid var(--border-color);border-radius:6px;padding:2px;gap:2px}.theme-btn{background:transparent;border:none;color:var(--text-muted);padding:4px 10px;border-radius:4px;font-size:.75rem;font-weight:600;cursor:pointer;height:26px;transition:var(--transition-smooth)}.theme-btn:hover{color:var(--text-main)}.theme-btn.active{background:var(--bg-card);color:var(--text-main);box-shadow:0 1px 3px #0003}.export-buttons{display:flex;gap:6px;align-items:center}.btn-icon{background:var(--bg-primary);border:1px solid var(--border-color);color:var(--text-main);padding:4px 10px;border-radius:6px;font-size:.78rem;font-weight:600;gap:5px;height:30px;transition:var(--transition-smooth)}.btn-icon:hover{border-color:var(--accent);background:var(--bg-card)}.btn-sidebar-toggle{background:var(--bg-primary);border:1px solid var(--border-color);border-radius:6px;padding:0 9px;height:30px;color:var(--text-main);font-size:.8rem;font-weight:600;display:inline-flex;align-items:center;gap:6px;transition:var(--transition-smooth)}.btn-sidebar-toggle:hover{border-color:var(--accent);background:var(--bg-card)}aside.sidebar{width:320px;height:100vh;background:var(--bg-secondary);border-right:1px solid var(--border-color);display:flex;flex-direction:column;z-index:20;transition:width .3s cubic-bezier(.16,1,.3,1),transform .3s cubic-bezier(.16,1,.3,1)}aside.sidebar.collapsed{width:0;transform:translate(-320px);border-right:none;overflow:hidden}.sidebar-header{padding:14px 18px;border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between;white-space:nowrap}.sidebar-title{font-size:.95rem;font-weight:700;display:flex;align-items:center;gap:8px;color:var(--text-main)}.btn-new-song{background:var(--accent);color:#fff;padding:6px 12px;border-radius:6px;font-size:.82rem;font-weight:600;min-height:36px;transition:var(--transition-smooth)}.btn-new-song:hover{background:var(--accent-hover)}.song-list{flex:1;overflow-y:auto;padding:12px;display:flex;flex-direction:column;gap:8px}.song-item{background:var(--bg-card);border:1px solid var(--border-subtle);padding:12px 14px;border-radius:8px;cursor:pointer;display:flex;align-items:center;justify-content:space-between;transition:var(--transition-smooth)}.song-item:hover{border-color:var(--accent);transform:translateY(-1px)}.song-item.active{border-color:var(--accent);background:var(--accent-glow)}.song-info{flex:1;min-width:0}.song-title{font-weight:600;font-size:.88rem;margin-bottom:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.song-meta{font-size:.75rem;color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.btn-delete-song{opacity:0;color:var(--text-dim);font-size:.85rem;padding:4px 8px;border-radius:4px}.song-item:hover .btn-delete-song{opacity:1}.btn-delete-song:hover{color:#ef4444}.tab-view-container{flex:1;width:100%;height:100%;overflow-y:auto;overflow-x:auto;padding:32px 32px 40px;display:flex;flex-direction:column;align-items:center;background:var(--bg-primary);min-height:0;-webkit-overflow-scrolling:touch}.capture-card{background:var(--svg-bg);border:1px solid var(--border-color);border-radius:12px;padding:24px 28px;box-shadow:0 4px 20px #00000026;max-width:100%;overflow-x:auto;transition:var(--transition-smooth)}.tab-score-header{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:20px;border-bottom:1px solid var(--border-subtle);padding-bottom:12px}.tab-score-title{font-size:1.4rem;font-weight:700;color:var(--text-main);letter-spacing:-.3px}.tab-score-meta{font-size:.8rem;color:var(--text-dim);font-family:monospace}.svg-canvas-wrapper{display:flex;justify-content:center}#tabSvg{display:block}.tab-note-pill{transition:transform .28s cubic-bezier(.16,1,.3,1),opacity .2s ease;will-change:transform}.tab-note-pill rect{transition:fill .24s ease,stroke .24s ease}.tab-note-pill text{transition:fill .24s ease}.floating-bar{position:relative;width:100%;background:var(--bg-secondary);border-top:1px solid var(--border-color);padding:10px 18px 12px;display:flex;flex-direction:column;gap:8px;z-index:30;box-shadow:0 -4px 16px #0003;flex-shrink:0}.floating-top-row{display:flex;flex-direction:column;gap:4px}.tab-input-box{width:100%;background:var(--bg-primary);border:1px solid var(--border-color);color:var(--text-main);padding:8px 12px;border-radius:6px;font-size:.92rem;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;outline:none;min-height:38px;transition:var(--transition-smooth)}.tab-input-box:focus{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}.helper-text{font-size:.72rem;color:var(--text-dim);line-height:1.3}.helper-text code{background:var(--bg-card);padding:1px 4px;border-radius:3px;color:var(--text-muted)}.floating-bottom-row{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}.left-toggles-group{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.mode-badge-btn{background:var(--bg-primary);border:1px solid var(--border-color);color:var(--text-main);padding:4px 10px;border-radius:6px;font-size:.78rem;font-weight:600;gap:6px;min-height:30px;cursor:pointer;transition:var(--transition-smooth)}.mode-badge-btn:hover{border-color:var(--accent);background:var(--bg-card)}.position-segmented-bar{display:flex;align-items:center;background:var(--bg-primary);border:1px solid var(--border-color);border-radius:6px;padding:2px;gap:2px}.pos-bar-label{font-size:.72rem;font-weight:700;color:var(--text-dim);padding:0 6px 0 4px;text-transform:uppercase;letter-spacing:.4px}.pos-btn{background:transparent;border:none;color:var(--text-muted);padding:3px 8px;border-radius:4px;font-size:.74rem;font-weight:600;cursor:pointer;height:24px;min-height:24px;transition:var(--transition-smooth)}.pos-btn:hover{color:var(--text-main)}.pos-btn.active{background:var(--bg-card);color:var(--accent);box-shadow:0 1px 3px #0003}.status-summary{font-size:.78rem;color:var(--text-muted);font-weight:500;font-family:ui-monospace,monospace}.controls-group{display:flex;align-items:center;gap:12px}.control-item{display:flex;align-items:center;gap:6px;font-size:.76rem;color:var(--text-muted);font-weight:600}.control-badge{background:var(--bg-card);padding:1px 5px;border-radius:3px;color:var(--accent);font-family:ui-monospace,monospace}.control-item input[type=range]{width:74px;height:4px}.toast-container{position:fixed;top:max(16px,var(--safe-top));right:16px;display:flex;flex-direction:column;gap:8px;z-index:9999;pointer-events:none}.toast{pointer-events:auto;display:flex;align-items:center;gap:10px;min-height:48px;padding:10px 18px;background:var(--bg-card);color:var(--text-main);border:1px solid var(--border-color);border-radius:8px;box-shadow:var(--shadow-elevation);font-size:.88rem;font-weight:500;opacity:0;transform:translateY(-8px);transition:opacity .2s ease,transform .2s ease}.toast.visible{opacity:1;transform:translateY(0)}.toast-info{border-left:4px solid var(--accent)}.toast-warning{border-left:4px solid #f59e0b}.toast-error{border-left:4px solid #ef4444}.toast-success{border-left:4px solid #10b981}.modal-backdrop{position:fixed;inset:0;background:#000000a6;backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:10000;padding:16px;opacity:0;visibility:hidden;transition:opacity .2s ease,visibility .2s ease}.modal-backdrop.open{opacity:1;visibility:visible}.modal-dialog{background:var(--bg-card);border:1px solid var(--border-color);border-radius:12px;max-width:440px;width:100%;padding:24px;box-shadow:var(--shadow-elevation);transform:scale(.96);transition:transform .2s cubic-bezier(.16,1,.3,1)}.modal-backdrop.open .modal-dialog{transform:scale(1)}.modal-title{font-size:1.15rem;font-weight:700;margin-bottom:8px;color:var(--text-main)}.modal-desc{font-size:.9rem;color:var(--text-muted);margin-bottom:20px;line-height:1.5}.modal-actions{display:flex;justify-content:flex-end;gap:12px}.btn-secondary{padding:8px 16px;border-radius:8px;border:1px solid var(--border-color);color:var(--text-muted);font-weight:600;min-height:44px}.btn-primary{padding:8px 18px;border-radius:8px;background:var(--accent);color:#fff;font-weight:600;min-height:44px}.btn-danger{padding:8px 18px;border-radius:8px;background:#ef4444;color:#fff;font-weight:600;min-height:44px}.skeleton{background:linear-gradient(90deg,var(--bg-card) 25%,var(--bg-elevated) 50%,var(--bg-card) 75%);background-size:200% 100%;animation:shimmer 1.5s infinite;border-radius:6px}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:48px 24px;text-align:center;color:var(--text-muted)}.empty-state-icon{font-size:2.5rem;margin-bottom:12px}.empty-state-title{font-size:1.1rem;font-weight:600;color:var(--text-main);margin-bottom:6px}.empty-state-subtitle{font-size:.85rem;max-width:320px}.fretboard-drawer{background:var(--bg-card);border-bottom:1px solid var(--border-color);max-height:0;overflow:hidden;transition:max-height .32s cubic-bezier(.16,1,.3,1),padding .32s ease;padding:0 20px;flex-shrink:0;z-index:15}.fretboard-drawer.open{max-height:220px;padding:12px 20px 16px;overflow-x:auto}.fretboard-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}.fretboard-title{font-size:.82rem;font-weight:700;color:var(--text-main);display:flex;align-items:center;gap:8px;letter-spacing:-.2px}.fretboard-legend{display:flex;align-items:center;gap:12px;font-size:.72rem;color:var(--text-muted)}.legend-dot{width:9px;height:9px;border-radius:50%;display:inline-block}.legend-dot.low{background:#6366f173}.legend-dot.high{background:#6366f1;box-shadow:0 0 6px var(--accent-glow)}.btn-close-fretboard{background:transparent;border:none;color:var(--text-dim);font-size:.85rem;padding:2px 6px;border-radius:4px;cursor:pointer}.btn-close-fretboard:hover{color:var(--text-main)}.fretboard-canvas-wrap{display:flex;justify-content:center;min-width:760px}#fretboardSvg{display:block}.btn-heatmap-toggle{background:var(--bg-primary);border:1px solid var(--border-color);color:var(--text-main);padding:4px 10px;border-radius:6px;font-size:.78rem;font-weight:600;gap:5px;height:30px;transition:var(--transition-smooth)}.btn-heatmap-toggle:hover{border-color:var(--accent);background:var(--bg-card)}.btn-heatmap-toggle.active{background:var(--accent-glow);border-color:var(--accent);color:var(--accent)}#app{display:flex;height:100vh;width:100vw;overflow:hidden;position:relative;background-color:var(--bg-primary)}.main-content{flex:1;display:flex;flex-direction:column;height:100%;position:relative;overflow:hidden;min-width:0}#tabViewMount{flex:1;display:flex;flex-direction:column;min-height:0;overflow:hidden}