:root{--bg: #0b0d12;--bg-2: #121620;--surface: #161b26;--surface-2: #1d2331;--line: #262d3d;--text: #e8ecf4;--muted: #8b95ab;--accent: #ffb454;--accent-2: #6ad0ff;--fn-t: #4ade80;--fn-s: #60a5fa;--fn-d: #f472b6;--root: #ffb454;--radius: 14px;--shadow: 0 10px 30px rgba(0, 0, 0, .35)}*{box-sizing:border-box}.lab-body{margin:0;background:radial-gradient(1200px 600px at 80% -10%,rgba(106,208,255,.08),transparent),radial-gradient(900px 500px at 0% 0%,rgba(255,180,84,.07),transparent),var(--bg);color:var(--text);font-family:IBM Plex Sans,system-ui,sans-serif;line-height:1.5;-webkit-font-smoothing:antialiased}.app{max-width:1400px;margin:0 auto;padding:22px clamp(14px,3vw,34px) 60px}h1,h2{font-family:Space Grotesk,system-ui,sans-serif;letter-spacing:-.01em;margin:0}.accent{color:var(--accent)}.muted{color:var(--muted);font-weight:400}.top{display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;margin-bottom:18px}.brand{display:flex;align-items:center;gap:14px}.brand-mark{font-size:40px;color:var(--accent);filter:drop-shadow(0 0 14px rgba(255,180,84,.4))}.brand h1{font-size:28px}.tag{margin:2px 0 0;color:var(--muted);font-size:14px}.transport{display:flex;align-items:center;gap:10px}.btn{border:1px solid var(--line);background:var(--surface-2);color:var(--text);padding:10px 16px;border-radius:10px;cursor:pointer;font-size:14px;font-weight:600;transition:transform .08s ease,background .15s ease,border-color .15s ease}.btn:hover{border-color:var(--accent)}.btn:active{transform:translateY(1px)}.btn.primary{background:linear-gradient(180deg,#ffc776,var(--accent));color:#241703;border-color:transparent}.btn.primary.on{box-shadow:0 0 0 3px #ffb45440}.btn.small{padding:6px 12px;font-size:13px}.metro{display:inline-flex;align-items:center;gap:6px;color:var(--muted);font-size:13px;cursor:pointer;white-space:nowrap}.card{background:linear-gradient(180deg,var(--surface),var(--bg-2));border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow)}.controls{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:16px 22px;margin-bottom:18px}.ctrl{display:flex;flex-direction:column;gap:8px;min-width:0}.ctrl-label{font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);font-weight:600}.select{background:var(--surface-2);color:var(--text);border:1px solid var(--line);border-radius:9px;padding:9px 10px;font-size:14px;font-family:inherit;width:100%}.range{width:100%;accent-color:var(--accent)}.bass-row{display:flex;align-items:center;gap:10px}.bass-row .select{flex:1}.roots{display:flex;flex-wrap:wrap;gap:5px}.root-btn{border:1px solid var(--line);background:var(--surface-2);color:var(--text);width:34px;height:34px;border-radius:8px;cursor:pointer;font-weight:600;font-size:13px;padding:0}.root-btn:hover{border-color:var(--accent)}.root-btn.active{background:var(--accent);color:#241703;border-color:var(--accent)}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.span-2{grid-column:span 2}.span-3{grid-column:span 3}.card-head{margin-bottom:14px}.card-head.row{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}.card-head h2{font-size:18px}.hint{margin:6px 0 0;color:var(--muted);font-size:13px}.fn{padding:1px 6px;border-radius:5px;font-weight:600;color:#0b0d12}.fn-T{background:var(--fn-t)}.fn-S{background:var(--fn-s)}.fn-D{background:var(--fn-d)}.empty{color:var(--muted);font-size:14px;margin:8px 0}.empty.small{font-size:12px}.mini-label{font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);font-weight:700}.diatonic{display:grid;grid-template-columns:repeat(auto-fit,minmax(90px,1fr));gap:10px}.chord-card{border:1px solid var(--line);border-top:3px solid var(--line);background:var(--surface-2);color:var(--text);border-radius:11px;padding:12px 8px;cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:3px;transition:transform .08s ease,background .15s ease}.chord-card:hover{transform:translateY(-2px);background:#232a3b}.chord-card:active{transform:translateY(0)}.chord-card.fn-T{border-top-color:var(--fn-t)}.chord-card.fn-S{border-top-color:var(--fn-s)}.chord-card.fn-D{border-top-color:var(--fn-d)}.chord-card .roman{font-family:Space Grotesk,sans-serif;color:var(--muted);font-size:13px;font-weight:600}.chord-card .sym{font-size:20px;font-weight:700;font-family:Space Grotesk,sans-serif}.chord-card .notes{font-size:11px;color:var(--muted)}.scale-notes-wrap{display:flex;align-items:center;gap:12px;margin-top:16px;flex-wrap:wrap}.scale-notes{display:flex;gap:6px;flex-wrap:wrap}.note-pill{display:inline-flex;flex-direction:column;align-items:center;background:var(--surface-2);border:1px solid var(--line);border-radius:8px;padding:4px 10px;min-width:40px}.note-pill b{font-size:15px}.note-pill small{font-size:10px;color:var(--muted)}.note-pill.root{border-color:var(--accent);background:#ffb4541f}.presets{display:flex;flex-direction:column;gap:8px}.preset{text-align:left;border:1px solid var(--line);background:var(--surface-2);color:var(--text);border-radius:10px;padding:10px 12px;cursor:pointer;display:grid;grid-template-columns:1fr auto;gap:2px 10px;transition:border-color .15s ease}.preset:hover{border-color:var(--accent-2)}.preset-name{font-weight:700;font-family:Space Grotesk,sans-serif}.preset-genre{color:var(--accent-2);font-size:12px;align-self:center}.preset-note{grid-column:1 / -1;color:var(--muted);font-size:12px}.prog-strip{display:flex;gap:10px;flex-wrap:wrap;min-height:74px;align-items:center}.prog-strip.flash{animation:flash .5s ease}@keyframes flash{0%,to{background:transparent}50%{background:#f472b61f}}.prog-cell{position:relative;min-width:78px;padding:14px 12px 12px;background:var(--surface-2);border:1px solid var(--line);border-radius:11px;display:flex;flex-direction:column;align-items:center;cursor:pointer;transition:border-color .1s ease,box-shadow .1s ease}.prog-cell:hover{border-color:var(--accent)}.prog-cell.active{border-color:var(--accent);box-shadow:0 0 0 2px #ffb45466;background:#ffb4541a}.prog-roman{color:var(--muted);font-size:13px;font-family:Space Grotesk,sans-serif}.prog-sym{font-size:22px;font-weight:700;font-family:Space Grotesk,sans-serif}.remove{position:absolute;top:-8px;right:-8px;width:20px;height:20px;border-radius:50%;border:none;background:#3a2230;color:#ff9db5;cursor:pointer;font-size:13px;line-height:1;display:grid;place-items:center}.remove:hover{background:var(--fn-d);color:#fff}.shapes{display:flex;flex-wrap:wrap;gap:18px}.shape-block{border:1px solid var(--line);border-radius:12px;padding:12px;background:var(--bg-2)}.shape-title{font-family:Space Grotesk,sans-serif;font-size:15px;margin-bottom:8px}.shape-diagrams{display:flex;gap:10px}.diagram{width:96px;height:auto;background:#0e1220;border-radius:8px;cursor:pointer;transition:transform .08s ease}.diagram:hover{transform:translateY(-2px)}.diagram .fretline{stroke:#39415a;stroke-width:1}.diagram .stringline{stroke:#4a5372;stroke-width:1}.diagram .nut{fill:#aab3cc}.diagram .dot{fill:var(--accent-2)}.diagram .dot.root{fill:var(--accent)}.diagram .barre{fill:var(--accent-2);opacity:.9}.diagram .dot-lbl{fill:#04121b;font-size:8px;font-weight:700;text-anchor:middle;dominant-baseline:central}.diagram .mark{fill:var(--muted);font-size:11px;text-anchor:middle}.diagram .mark.open{fill:var(--accent-2)}.diagram .fr{fill:var(--muted);font-size:10px}.viz-wrap{overflow-x:auto;padding-bottom:6px}.fretboard{min-width:min-content}.fb-svg{background:#0e1220;border-radius:10px}.fb-string{stroke:#4a5372;stroke-width:1.5}.fb-fret{stroke:#39415a;stroke-width:1.5}.fb-fret.nut{stroke:#aab3cc;stroke-width:4}.inlay{fill:#262d3d}.fb-open{fill:var(--muted);font-size:12px;font-weight:600;text-anchor:end;dominant-baseline:central}.fb-num{fill:var(--muted);font-size:11px;text-anchor:middle}.fb-note{cursor:pointer}.fb-dot{fill:var(--accent-2);stroke:#0e1220;stroke-width:1.5;transition:transform .08s ease}.fb-dot.root{fill:var(--accent)}.fb-note:hover .fb-dot{filter:brightness(1.2)}.fb-lbl{fill:#04121b;font-size:10px;font-weight:700;text-anchor:middle;dominant-baseline:central;pointer-events:none}.scale-suggest{margin-top:16px}.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}.chip{border:1px solid var(--line);background:var(--surface-2);color:var(--text);border-radius:999px;padding:7px 14px;cursor:pointer;font-size:13px;font-weight:600;transition:all .12s ease}.chip:hover{border-color:var(--accent-2)}.chip.active{background:var(--accent-2);color:#04121b;border-color:var(--accent-2)}.scale-info{margin-top:16px}.info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px}.info-grid p{margin:4px 0 0;font-size:14px}.foot{margin-top:30px;color:var(--muted);font-size:13px;text-align:center}@media(max-width:900px){.grid{grid-template-columns:1fr}.span-2,.span-3{grid-column:span 1}}