:root{color-scheme:dark;--bg: #0b0a16;--bg-soft: #14122a;--panel: rgba(28, 24, 56, .72);--line: rgba(146, 132, 226, .28);--text: #ece9ff;--muted: #a49dd0;--accent: #7ff3d9;--accent-2: #c79cff;--accent-3: #ff9ad5}*{box-sizing:border-box}body{margin:0;padding:0 20px 48px;background:radial-gradient(1200px 620px at 12% -10%,rgba(126,89,219,.35),transparent 65%),radial-gradient(900px 520px at 88% 0%,rgba(52,210,190,.22),transparent 60%),var(--bg);color:var(--text);font-family:Hiragino Sans,Noto Sans JP,system-ui,sans-serif;font-size:14px;line-height:1.6;min-height:100vh}#masthead{display:flex;align-items:baseline;gap:16px;flex-wrap:wrap;padding:22px 4px 14px}#masthead h1{margin:0;font-size:30px;font-weight:600;letter-spacing:.14em;background:linear-gradient(100deg,var(--accent),var(--accent-2) 55%,var(--accent-3));-webkit-background-clip:text;background-clip:text;color:transparent}.tagline{margin:0;color:var(--muted)}#scope{margin-left:auto;width:320px;height:48px;border:1px solid var(--line);border-radius:8px;background:#0a081a99}.panel{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:16px 18px;margin-bottom:18px;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.panel h2{margin:0 0 4px;font-size:15px;font-weight:600;letter-spacing:.08em;color:var(--accent)}.note{margin:0 0 12px;color:var(--muted);font-size:12px}#tuning-bar{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(180px,100%),1fr));gap:14px 20px;align-items:end}.field{display:flex;flex-direction:column;gap:4px;min-width:0}.field label{font-size:12px;color:var(--muted);display:flex;justify-content:space-between;gap:8px}.field output{color:var(--accent);font-variant-numeric:tabular-nums}.field.buttons{flex-direction:row;align-items:end;gap:8px}input[type=range]{width:100%;accent-color:var(--accent-2)}select,button{font:inherit;color:var(--text);background:#0c0a1ed9;border:1px solid var(--line);border-radius:8px;padding:6px 12px;cursor:pointer}button:hover,select:hover{border-color:var(--accent-2)}button.primary{background:linear-gradient(120deg,#7ff3d938,#c79cff47);border-color:#c79cff8c}button:disabled{opacity:.45;cursor:default}button.toggle.on{background:linear-gradient(120deg,#7ff3d94d,#ff9ad54d);border-color:var(--accent);color:#fff}#keyboard-section{margin-bottom:18px}#readout{display:flex;align-items:baseline;flex-wrap:wrap;gap:6px 14px;padding:0 4px 8px;min-height:34px}#readout-name{font-size:22px;font-weight:600;color:var(--accent);font-variant-numeric:tabular-nums}#readout-detail{flex:1 1 220px;min-width:0;color:var(--muted);font-size:12px;font-variant-numeric:tabular-nums}#tuning-badge{margin-left:auto;padding:2px 10px;border:1px solid var(--line);border-radius:999px;font-size:12px;color:var(--accent-2);font-variant-numeric:tabular-nums}#keyboard{overflow-x:auto;overflow-y:hidden;padding:10px 10px 12px;border:1px solid var(--line);border-radius:14px;background:linear-gradient(180deg,#14122ae6,#090814e6);touch-action:none}.keyboard-svg{display:block;touch-action:none;-webkit-user-select:none;user-select:none}.key{stroke:#080614d9;stroke-width:1;transition:fill .06s linear}.key.white{fill:#efeaff}.key.micro-white{fill:#b9b0e4}.key.black{fill:#1b1730}.key.micro-black{fill:#3a3160}.key.micro{fill:#6f66a8}.key.in-scale{fill:#7ff3d9}.key.in-scale.black,.key.in-scale.micro-black{fill:#2f9d8d}.key.active{fill:var(--accent-3)}.key:hover{filter:brightness(1.15)}.key-label{fill:#5b5482;font-size:10px;text-anchor:middle;pointer-events:none;-webkit-user-select:none;user-select:none}#keyboard-hint{margin:8px 4px 0;color:var(--muted);font-size:12px}kbd{display:inline-block;padding:0 5px;margin:0 1px;border:1px solid var(--line);border-radius:4px;background:#0c0a1ee6;font-size:11px}main{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(340px,100%),1fr));gap:18px;align-items:start}main .panel{margin-bottom:0}.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(190px,100%),1fr));gap:10px}.song-card{text-align:left;padding:10px 12px;border-radius:10px;line-height:1.45}.song-card strong{display:block;font-size:13px;color:var(--text)}.song-card .meta{display:block;font-size:11px;color:var(--accent);margin-bottom:2px}.song-card .desc{display:block;font-size:11px;color:var(--muted)}.song-card.selected{border-color:var(--accent);background:linear-gradient(120deg,#7ff3d924,#c79cff29)}.song-card.playing strong:after{content:" ▶";color:var(--accent-3)}#transport{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:14px}.inline{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--muted)}.inline input[type=range]{width:110px}#progress{flex:1 1 120px;height:6px;min-width:100px;border-radius:3px;background:#0a081ad9;overflow:hidden}#progress-bar{height:100%;width:0;background:linear-gradient(90deg,var(--accent),var(--accent-2))}.inline-field{margin-bottom:12px}.ai-scale-input-row{margin-bottom:10px}.ai-scale-input-group{display:flex;gap:8px}.ai-scale-input-group input[type=text]{flex:1;min-width:0;font:inherit;color:var(--text);background:#0c0a1ed9;border:1px solid var(--line);border-radius:8px;padding:6px 10px}.ai-scale-input-group input[type=text]:focus{outline:none;border-color:var(--accent-2)}.scale-list{display:flex;flex-direction:column;gap:8px;max-height:420px;overflow-y:auto;padding-right:4px}.scale-row{display:flex;align-items:center;gap:10px;padding:8px 10px;border:1px solid var(--line);border-radius:10px;background:#0c0a1e8c}.scale-row.selected{border-color:var(--accent);background:linear-gradient(120deg,#7ff3d91f,#c79cff24)}.scale-row .info{flex:1;min-width:0}.scale-row .name{font-size:13px}.scale-row .desc{font-size:11px;color:var(--muted)}.scale-row button{padding:4px 10px;font-size:12px;white-space:nowrap}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(150px,100%),1fr));gap:12px 16px}table{width:100%;border-collapse:collapse;font-size:12px;font-variant-numeric:tabular-nums}th,td{text-align:right;padding:4px 6px;border-bottom:1px solid rgba(146,132,226,.16)}th:first-child,td:first-child{text-align:left}th{color:var(--muted);font-weight:500}td.good{color:var(--accent)}td.bad{color:var(--accent-3)}@media(max-width:720px){body{padding:0 12px 32px}#masthead{gap:6px 12px;padding:16px 2px 10px}#masthead h1{font-size:24px;letter-spacing:.1em}.tagline{font-size:12px}#scope{margin-left:0;width:100%;height:40px}.panel{padding:14px 12px}#readout{gap:4px 10px}#readout-name{font-size:18px}#readout-detail{flex:1 1 100%;order:3}#tuning-badge{margin-left:0}#keyboard{margin:0 -12px;border-radius:0;border-left:none;border-right:none;padding:8px 8px 10px;-webkit-overflow-scrolling:touch}#keyboard-hint{font-size:11px}.scale-row{flex-wrap:wrap}.scale-row .info{flex:1 1 100%}.scale-row button{flex:1 1 0}.inline input[type=range]{width:90px}table{font-size:11px}}@media(pointer:coarse){#keyboard,.keyboard-svg{touch-action:pan-x}}