:root{--bg: #faf8f4;--fg: #1d1b18;--muted: #6b665e;--line: #ddd7cc;--accent: #7a4b1f;--card: #ffffff;--good: #2f7d4b;--close: #eba73c;color-scheme:light}@media(prefers-color-scheme:dark){:root{--bg: #17150f;--fg: #ece7dd;--muted: #9a9387;--line: #3a352c;--accent: #d9a066;--card: #211e17;color-scheme:dark}}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font:15px/1.5 system-ui,-apple-system,sans-serif}main{max-width:960px;margin:0 auto;padding:32px 16px 64px}.nav{display:flex;gap:4px;max-width:960px;margin:0 auto;padding:14px 16px 0}.nav a{color:var(--muted);text-decoration:none;padding:6px 12px;border-radius:6px}.nav a:hover{color:var(--fg)}.nav a[aria-current=page]{color:var(--fg);background:var(--card);border:1px solid var(--line)}.roots,.strings{display:flex;flex-wrap:wrap;gap:6px;margin:10px 0}button.string-btn{background:var(--card);color:var(--fg);border:1px solid var(--line);padding:6px 12px}button.string-btn.active{border-color:var(--accent);color:var(--accent)}button.string-btn.detected{background:var(--good);border-color:var(--good);color:#fff}#quality{background:var(--card);border:1px solid var(--line);border-radius:6px;padding:8px 10px;color:var(--fg);font:inherit}.chord-list{display:flex;flex-direction:column;gap:14px;margin-top:16px}.chord-card{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:14px 16px}.chord-head{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap;margin-bottom:10px}.chord-head span{color:var(--muted);font-size:13px}.tuner-page{text-align:center}.tuner-page .strings,.tuner-controls{justify-content:center}.gauge-wrap{max-width:460px;margin:8px auto 0;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px 16px 20px}#gauge{width:100%;height:auto;display:block}#gauge .gauge-line{stroke:var(--fg)}#gauge .zone-close{stroke:var(--close)}#gauge .zone-good{stroke:var(--good)}#gauge .gauge-label{fill:var(--fg);font-size:20px}#gauge .gauge-target{fill:var(--fg);font-size:26px;font-weight:600}#gauge .needle{transition:transform .12s ease-out}#gauge .needle-body{fill:var(--fg)}#gauge .needle.idle .needle-body{opacity:.25}#gauge .hub{fill:var(--muted);transition:fill .15s}#gauge[data-state=good] .hub{fill:var(--good)}#gauge[data-state=close] .hub{fill:var(--close)}.reading{font-size:22px;margin-top:6px;min-height:1.5em}h1{margin:0;font-size:28px}h2{margin:0;font-size:18px}.sub{color:var(--muted);margin:4px 0 24px}.row{display:flex;gap:8px;margin-bottom:10px;flex-wrap:wrap;align-items:center}.row input[type=text],.row input[type=url]{flex:1 1 240px}input,textarea,button{font:inherit;color:inherit}input[type=text],input[type=url],textarea{background:var(--card);border:1px solid var(--line);border-radius:6px;padding:8px 10px}textarea{width:100%;min-height:260px;font-family:ui-monospace,Menlo,monospace;font-size:13px;resize:vertical}button{background:var(--accent);color:var(--bg);border:1px solid var(--accent);border-radius:6px;padding:8px 16px;cursor:pointer}button.secondary{background:transparent;color:var(--accent)}button:disabled{opacity:.5;cursor:wait}.source{margin-top:10px;gap:16px}.source label{display:flex;gap:6px;align-items:center;color:var(--muted);white-space:nowrap}.source input,.source select{color:var(--fg)}.source select{background:var(--card);border:1px solid var(--line);border-radius:6px;padding:6px 8px;font:inherit}#src-tuning{width:11em;font-family:ui-monospace,Menlo,monospace}#src-capo{width:4em}#src-tuning.invalid{border-color:#b3261e}.status.warn{color:#b26a00}.controls{margin-top:10px;gap:16px}.controls small{color:var(--muted)}.controls button{margin-left:auto}.status{color:var(--muted);margin:0 0 10px}.status.error{color:#b3261e}#result{margin-top:28px}.out-head{display:flex;justify-content:space-between;align-items:center;margin:16px 0 8px}pre{background:var(--card);border:1px solid var(--line);border-radius:6px;padding:16px;overflow-x:auto;font-size:13px;line-height:1.35}.diagrams{display:flex;flex-wrap:wrap;gap:12px}.diagram{text-align:center;font-size:13px}.diagram svg{display:block;color:var(--fg)}