:root{--bg: #101113;--bg-2: #17191d;--panel: #202329;--panel-2: #272b32;--line: #3a404a;--txt: #f0f2f5;--muted: #a5adba;--accent: #2dd4bf;--danger: #fb7185;--root: #f43f5e;--third: #60a5fa;--fifth: #34d399;--seventh: #fbbf24;--tension: #c084fc;--bass: #fb7185;--ghost: #687282;--whitekey: #f5f0e6;--whitekey-line: #cfc7b8;--shadow: 0 18px 42px rgba(0,0,0,.28)}*{box-sizing:border-box}html,body{margin:0;padding:0}body{min-height:100vh;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Arial,sans-serif;background:linear-gradient(135deg,rgba(45,212,191,.12),transparent 28%),linear-gradient(215deg,rgba(245,158,11,.1),transparent 30%),var(--bg);color:var(--txt)}button,input,select,textarea{font:inherit}button,select,input,textarea{color:var(--txt);background:var(--panel-2);border:1px solid var(--line);border-radius:8px}button,select{min-height:36px}button{display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:7px 11px;cursor:pointer}button:hover,select:hover,input:focus,textarea:focus{border-color:var(--accent)}button:focus-visible,select:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid rgba(45,212,191,.45);outline-offset:2px}button:active{transform:translateY(1px)}button.primary{background:#11443d;border-color:#1b6f63;color:#dffcf8;font-weight:700}button.warn{background:#44212a;border-color:#7f1d1d;color:#ffdce3}button.active{background:var(--accent);border-color:var(--accent);color:#06231f;font-weight:800}button:disabled,select:disabled{cursor:not-allowed;opacity:.48}label{color:var(--muted);font-size:13px}header{display:block;padding:18px 22px 14px;border-bottom:1px solid rgba(255,255,255,.06)}h1{margin:0;font-size:clamp(20px,2.1vw,30px);letter-spacing:0;line-height:1.08}.tagline{color:var(--muted);margin-top:5px;font-size:13px}.field{display:grid;gap:5px}.field input,.field select{min-height:36px;padding:6px 9px}#tempoInput{width:86px}#beatsSel{width:94px}.app{display:grid;grid-template-columns:minmax(320px,.95fr) minmax(380px,1.35fr);gap:16px;padding:16px 22px 22px}@media(max-width:1050px){.app{grid-template-columns:1fr}}@media(max-width:620px){header,.app{padding-left:14px;padding-right:14px}.app{grid-template-columns:minmax(0,1fr)}}.panel{background:#202329eb;border:1px solid rgba(255,255,255,.08);border-radius:8px;box-shadow:var(--shadow)}.panel-head{padding:13px 15px;border-bottom:1px solid rgba(255,255,255,.07);display:flex;gap:10px;align-items:center;justify-content:space-between;flex-wrap:wrap}.panel-title{font-weight:800;letter-spacing:.2px}.panel-body{padding:15px}.seg{display:inline-flex;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:var(--bg-2)}.seg button{border:0;border-radius:0;background:transparent;padding:7px 10px}.seg button.on{background:var(--accent);color:#06231f;font-weight:800}.seg.wide{width:100%}.seg.wide button{flex:1}.chord-line{display:grid;grid-template-columns:minmax(160px,260px) 1fr;gap:12px;align-items:center;margin:13px 0 8px}@media(max-width:620px){.chord-line{grid-template-columns:1fr}}#chordInput{width:100%;min-height:56px;padding:7px 13px;font-family:SF Mono,ui-monospace,Menlo,Consolas,monospace;font-size:clamp(24px,4vw,34px);background:#15171b;letter-spacing:0}#fullChord{font-size:clamp(30px,4.6vw,54px);line-height:1;font-weight:900;color:#fff}#fullChord .over{color:var(--muted);font-size:.48em;font-weight:600;margin-left:5px}#errBox,#progErr{color:var(--danger);min-height:18px;font-size:13px;font-weight:650}#statusLine{color:var(--accent);min-height:18px;font-size:13px;font-weight:650}.control-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:11px;margin-top:12px}@media(max-width:620px){.control-grid{grid-template-columns:1fr}}.control-group{display:grid;gap:6px;align-content:start}.inline{display:flex;flex-wrap:wrap;gap:8px;align-items:center}.library-actions{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:12px}.transport{display:grid;grid-template-columns:repeat(5,auto);gap:10px;align-items:end;margin-top:12px;padding:12px;border:1px solid rgba(255,255,255,.08);border-radius:8px;background:#181b20}@media(max-width:720px){.transport{grid-template-columns:repeat(2,minmax(0,1fr))}.transport button{width:100%}}.check{display:inline-flex;gap:7px;align-items:center;color:var(--muted);font-size:13px;min-height:36px}.check input{accent-color:var(--accent)}.hint{color:var(--muted);font-size:12.5px;line-height:1.45;min-height:36px;margin-top:10px}.hint b{color:var(--txt)}.song-grid{display:grid;grid-template-columns:1fr 170px;gap:10px;align-items:end}@media(max-width:720px){.song-grid{grid-template-columns:1fr}}#songTitle,#savedSelect{width:100%;min-height:38px;padding:7px 10px}#progInput{width:100%;min-height:96px;margin-top:11px;padding:11px 12px;resize:vertical;line-height:1.55;background:#15171b}.grammar{color:var(--muted);font-size:12.5px;margin-top:7px}.range-row{display:grid;grid-template-columns:1fr auto;gap:10px;align-items:center}input[type=range]{width:100%;accent-color:var(--accent)}.value-pill{min-width:54px;padding:5px 9px;border:1px solid var(--line);border-radius:999px;color:var(--txt);background:#181b20;font-size:13px;text-align:center;font-weight:800}#measureStrip{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}.measure{min-width:148px;flex:1 1 168px;background:#181b20;border:1px solid var(--line);border-radius:8px;padding:8px}.measure-num{display:flex;align-items:center;justify-content:space-between;color:var(--muted);font-size:12px;margin-bottom:7px}.measure-chords{display:flex;gap:6px;flex-wrap:wrap}.tile{min-width:64px;padding:7px 10px;border:1px solid var(--line);border-radius:8px;background:var(--panel-2);color:var(--txt);font-size:15px;font-weight:800;cursor:pointer}.tile:hover{border-color:var(--accent)}.tile.active{background:var(--accent);border-color:var(--accent);color:#06231f}.tile.invalid{border-color:#7f1d1d;color:#fecdd3;background:#321820}.keyboard-panel{margin:0 22px 24px}@media(max-width:620px){.keyboard-panel{margin-left:14px;margin-right:14px}}.row-head{padding:13px 15px 10px;display:flex;gap:12px;align-items:center;flex-wrap:wrap}.row-title{font-size:15px;font-weight:900;letter-spacing:.3px}.row-title .sub{color:var(--muted);font-size:13px;font-weight:600;margin-left:6px}.chip-row{display:flex;gap:6px;flex-wrap:wrap;align-items:center}.chip{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);background:#181b20;border-radius:999px;padding:4px 10px;font-size:13px}.dot{width:10px;height:10px;border-radius:50%;display:inline-block}.kb-wrap{overflow-x:auto;background:#090a0c;padding:10px 6px 3px;border-top:1px solid rgba(255,255,255,.06)}.kb{display:flex;height:226px;min-width:680px;position:relative}.wkey,.bkey{position:relative}.wkey{flex:1 1 0;min-width:0;z-index:1;background:linear-gradient(180deg,var(--whitekey),#e7e0d1);border:1px solid var(--whitekey-line);border-radius:0 0 5px 5px;cursor:pointer}.bkey{position:absolute;z-index:3;height:58%;border-radius:0 0 5px 5px;cursor:pointer;background:linear-gradient(180deg,#30343b,#101113);border:1px solid #000;border-top:1px solid #4a505a;box-shadow:0 4px 7px #000000ad}.knotename{pointer-events:none;position:absolute;left:0;right:0;bottom:5px;text-align:center;color:#5d6570;font-size:11px;font-weight:700}.bkey .knotename{color:#a8b0bb;bottom:4px;font-size:10px}.deg-label{pointer-events:none;position:absolute;top:8px;left:0;right:0;text-align:center;color:#fff;text-shadow:0 1px 2px rgba(0,0,0,.5);font-weight:900;font-size:15px}.bkey .deg-label{top:4px;font-size:12px}.wkey.hl,.bkey.hl{background:var(--col, var(--accent))!important}.wkey.ghost{background:repeating-linear-gradient(135deg,#c7cdd6 0,#c7cdd6 7px,transparent 7px,transparent 14px)}.bkey.ghost{background:repeating-linear-gradient(135deg,#3a4552 0,#3a4552 7px,transparent 7px,transparent 14px)}.wkey.input-hit{outline:3px solid #fff;outline-offset:1px}.bkey.input-hit{outline:3px solid #fff;box-shadow:0 0 10px #fff}.readout{display:flex;gap:6px;flex-wrap:wrap;padding:9px 15px 0;color:var(--muted);font-size:13px}.legend{display:flex;gap:14px;flex-wrap:wrap;padding:11px 15px 15px;color:var(--muted);font-size:13px;align-items:center}.legend span{display:inline-flex;gap:6px;align-items:center}