*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #1b2636;--bg2: #222e42;--bg3: #2a3a52;--accent: #f8701b;--text: #f0f6fc;--muted: #7a8fa8;--border: #2e3f58;--nav-h: 56px}html,body{height:100%;background-color:var(--bg);color:var(--text);touch-action:manipulation}body{font-family:Montserrat,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif}.navbar{position:fixed;top:0;left:0;right:0;height:var(--nav-h);background:var(--bg2);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 24px;z-index:100}.nav-brand-wrap{display:flex;align-items:center;gap:10px}.nav-brand-logo{height:2.2rem;width:auto;display:block;object-fit:contain}.nav-brand{font-size:1.1rem;font-weight:400;font-family:Lilita One,sans-serif;color:var(--accent);letter-spacing:1px}.nav-controls{display:flex;align-items:center;gap:10px}.nav-controls label{font-size:.8rem;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}#pan-select{background:var(--bg3);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:6px 14px;font-size:.9rem;font-family:inherit;cursor:pointer;outline:none;transition:border-color .15s,box-shadow .15s}#pan-select:hover,#pan-select:focus{border-color:var(--accent);box-shadow:0 0 0 3px #e945602e}#pan-select option:disabled{color:var(--muted);font-style:italic}#dev-toggle{background:var(--bg3);color:var(--muted);border:1px solid var(--border);border-radius:6px;padding:6px 12px;font-size:.85rem;font-family:inherit;cursor:pointer;transition:color .15s,border-color .15s,background .15s}#dev-toggle:hover{color:var(--text);border-color:var(--muted)}body.dev-mode #dev-toggle{background:var(--accent);color:#fff;border-color:var(--accent)}.content{padding:calc(var(--nav-h) + 36px) 40px 40px;max-width:960px;margin:0 auto}@media (max-width: 600px){:root{--nav-h: 48px}.content{padding:calc(var(--nav-h) + 16px) 12px 16px}.page-header{margin-bottom:12px;padding-bottom:10px}.page-header h1{font-size:1.35rem}.dt-stage-pair{gap:10px;padding:8px 0}.nav-controls label{display:none}}.page{display:none;animation:fadeUp .2s ease both}.page.active{display:block}@keyframes fadeUp{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.page-header{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:28px;padding-bottom:16px;border-bottom:1px solid var(--border)}.page-header-text{display:flex;flex-direction:column;gap:0}.page-header h1{font-size:2rem;font-weight:400;font-family:Lilita One,sans-serif;margin-bottom:4px}.subtitle{color:var(--muted);font-size:.85rem}.dt-stage-pair{display:flex;justify-content:center;align-items:flex-start;gap:24px;padding:16px 0}#page-double-tenor .pan-stage{--stage-size: min(420px, calc((min(100vw, 960px) - 104px)/2))}@media (max-width: 600px){#page-double-tenor .pan-stage{--stage-size:calc((100vw - 34px)/2)}}.tg-stage-triple{display:flex;justify-content:center;align-items:flex-start;gap:16px;padding:16px 0 96px}#page-triple-guitar .tg-stage-triple>*:first-child,#page-triple-guitar .tg-stage-triple>*:last-child{margin-top:80px}#page-triple-guitar .pan-stage{--stage-size: min(280px, calc((min(100vw, 960px) - 120px) / 3))}@media (max-width: 700px){#page-triple-guitar .pan-stage{--stage-size: calc((100vw - 40px) / 3)}#page-triple-guitar .tg-stage-triple>*:first-child,#page-triple-guitar .tg-stage-triple>*:last-child{margin-top:45px}}.ds-stage-pair{display:flex;justify-content:center;align-items:flex-start;gap:24px;padding:16px 0}#page-double-second .pan-stage{--stage-size: min(420px, calc((min(100vw, 960px) - 104px)/2))}@media (max-width: 600px){#page-double-second .pan-stage{--stage-size:calc((100vw - 34px)/2)}}.pan-stage-wrap{display:flex;justify-content:center;align-items:center;padding:24px 0}.pan-stage{position:relative;--stage-size: min(800px, 90vw);--unit: calc(var(--stage-size) / 68);width:var(--stage-size);height:var(--stage-size);border-radius:50%;background:radial-gradient(circle at 50% 50%,#2e3f58 0%,#1e2e44 55%,#131e2e 100%);box-shadow:0 0 0 6px #2a3a52,0 0 0 10px #1b2636,0 8px 40px #000000b3;user-select:none;flex-shrink:0}.pan-stage:after{content:"";position:absolute;inset:0;border-radius:50%;background:radial-gradient(circle at 50% 50%,rgba(233,69,96,.08) 0%,transparent 60%);pointer-events:none}.note-btn{position:absolute;background:none;border:none;cursor:pointer;display:flex;flex-direction:column;align-items:center;padding:0;transform:translate(-50%,-50%);transition:filter .12s,transform .12s}.note-btn img{width:calc(var(--w, 3) * var(--unit, 11.76px));height:auto;filter:drop-shadow(0 2px 10px rgba(0,0,0,.5));pointer-events:none;transform:rotate(calc(var(--r, 0) * 1deg));transition:filter .12s,transform .12s}.note-btn.rotating img{transition:none}.note-btn:hover img{filter:drop-shadow(0 2px 18px #00afb5)}.note-label{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:.72rem;font-weight:700;color:var(--muted);letter-spacing:.08em;text-transform:uppercase;pointer-events:none}body.dev-mode .note-btn.dragging{opacity:.85;cursor:grabbing;transform:translate(-50%,-50%) scale(1.08)}body.dev-mode .note-btn.rotating{cursor:ew-resize}body.dev-mode .note-btn:not(.dragging):not(.rotating){cursor:grab}#pos-hud{display:none}body.dev-mode #pos-hud{position:fixed;bottom:16px;right:16px;width:230px;max-height:320px;background:var(--bg2);border:1px solid var(--border);border-radius:10px;padding:10px 12px;font-size:.75rem;z-index:2000;display:flex;flex-direction:column;gap:6px;box-shadow:0 4px 20px #00000080}.hud-title{font-weight:700;color:var(--text);letter-spacing:.04em}.hud-list{overflow-y:auto;flex:1;display:flex;flex-direction:column;gap:2px}.hud-row{display:flex;justify-content:space-between;color:var(--muted)}.hud-key{color:var(--accent);font-weight:600}.hud-val{font-family:monospace}.hud-empty{color:var(--muted);font-style:italic}.hud-copy{background:var(--accent);color:#fff;border:none;border-radius:6px;padding:5px 0;font-size:.78rem;font-weight:700;cursor:pointer;transition:opacity .15s}.hud-copy:hover{opacity:.85}.pan-stage.rotatable{transform:rotate(var(--pan-rot, 0deg));transition:transform .3s ease-out}.pan-stage.rotatable.pan-dragging{transition:none}.pan-stage.rotatable .note-label{transform:translate(-50%,-50%) rotate(calc(var(--pan-rot, 0deg) * -1));transition:transform .3s ease-out}.pan-stage.rotatable.pan-dragging .note-label{transition:none}.pan-rotator-wrap{position:relative;display:inline-flex;flex-direction:column;align-items:center}.pan-rot-ring{position:absolute;inset:-12px;border-radius:50%;border:2px dashed rgba(0,175,181,.22);pointer-events:none;z-index:0;opacity:0;transition:opacity .2s}.arrange-mode .pan-rot-ring{opacity:1}.pan-rot-grip{width:36px;height:36px;margin-top:10px;background:#1a2840;border:2px solid rgba(0,175,181,.4);border-radius:50%;cursor:grab;display:none;align-items:center;justify-content:center;color:#00afb5;box-shadow:0 2px 8px #00000073;touch-action:none;flex-shrink:0;transition:background .15s,border-color .15s;z-index:5}.pan-rot-grip:hover{background:#2a3a52;border-color:#00afb5}.pan-rot-grip.pan-rotating{cursor:grabbing;background:#2a3a52;border-color:#00d4db}.pan-rot-grip svg{width:18px;height:18px;pointer-events:none;flex-shrink:0}.pan-rot-controls{display:none;align-items:center;gap:5px;padding-top:8px}.arrange-mode .pan-rot-grip,.arrange-mode .pan-rot-controls{display:flex}.pan-arrange-bar{display:none;align-items:center;justify-content:center;gap:16px;flex-wrap:wrap;padding:14px 0 4px}.arrange-mode .pan-arrange-bar{display:flex}.pan-arrange-btn{background:#1a2840;border:1px solid rgba(0,175,181,.35);border-radius:8px;color:#00afb5;font-size:.82rem;font-weight:600;font-family:inherit;padding:6px 16px;cursor:pointer;transition:background .12s,border-color .12s;white-space:nowrap}.pan-arrange-btn:hover{background:#2a3a52;border-color:#00afb5}.pan-arrange-btn--ghost{background:none;border-color:transparent;color:var(--muted, #8892a4);font-size:.74rem;font-weight:400}.pan-arrange-btn--ghost:hover{color:#00afb5;background:none;border-color:#00afb54d}.pan-arrange-label{display:flex;align-items:center;gap:10px;font-size:.78rem;color:var(--muted, #8892a4);white-space:nowrap}.pan-arrange-label input[type=range]{width:110px;accent-color:#00afb5;cursor:pointer}.arrange-toggle-btn{background:none;border:1px solid rgba(0,175,181,.3);border-radius:8px;color:var(--muted, #8892a4);font-size:.78rem;font-weight:600;padding:5px 14px;cursor:pointer;white-space:nowrap;flex-shrink:0;transition:color .15s,border-color .15s,background .15s;letter-spacing:.04em}.arrange-toggle-btn:hover{color:#00afb5;border-color:#00afb5}.arrange-toggle-btn.active{background:rgba(0,175,181,.12);color:#00afb5;border-color:#00afb5}.pan-rot-display{font-family:monospace;font-size:.76rem;color:var(--muted, #8892a4);min-width:38px;text-align:center}.pan-rot-reset{background:none;border:1px solid transparent;color:var(--muted, #8892a4);font-size:.68rem;cursor:pointer;padding:3px 7px;border-radius:5px;transition:color .15s,border-color .15s}.pan-rot-reset:hover{color:#00afb5;border-color:#00afb54d}