/* ═══════════ VESPER PIANO — 黒・白・銀。点灯するものだけ金 ═══════════ */
body.piano-app {
  --ink: #050505; --ink-2: #0c0c0c; --ink-3: #141414;
  --panel: #0a0a0a; --panel-2: #121212;
  --line: #262626; --line-2: #3a3a3a;
  --blue: #8c8c8c;            /* 銀 (アクセント) */
  --blue-hi: #cfcfcf;
  --blue-neon: #f2f2f2;       /* 白 */
  --blue-deep: #2e2e2e;
  --tape: #f3f3f3; --txt: #f0f0f0; --txt-dim: #8a8a8a;
  --lit: #e0b95a;             /* 点灯 (金) */
  --warn: #e0b95a; --ok: #e6e6e6; --danger: #f0f0f0;
  background: radial-gradient(1000px 420px at 70% -10%, rgba(255,255,255,.05), transparent 60%), var(--ink);
}
body.piano-app #grain { opacity: .035; }
body.piano-app .logo { color: #fff; } body.piano-app .logo span { color: #9a9a9a; }
body.piano-app .logo-sub { color: #6f6f6f; }
body.piano-app #topbar { background: linear-gradient(180deg, #121212, #070707); border-bottom: 1px solid #3a3a3a; box-shadow: 0 2px 20px rgba(0,0,0,.7); }
body.piano-app .tbtn { background: #0e0e0e; border-color: #3a3a3a; color: #d0d0d0; }
body.piano-app .tbtn:hover { border-color: #8c8c8c; color: #fff; }
body.piano-app .tbtn.play { color: #fff; }
body.piano-app .tbtn.active, body.piano-app .tbtn.rec.active, body.piano-app .tbtn.met.active, body.piano-app .tbtn.jam.active { background: var(--lit); color: #000; border-color: var(--lit); box-shadow: 0 0 14px rgba(224,185,90,.55); animation: none; }
body.piano-app .tbtn.rec { color: #d0d0d0; }
body.piano-app .tbtn.jam { font-family: var(--font-display); letter-spacing: 2px; font-size: 12px; width: 52px; }
body.piano-app .lcd { color: #f2f2f2; text-shadow: none; background: #000; border: 1px solid #3a3a3a; }
body.piano-app .lcd-dim { color: #8a8a8a; }
body.piano-app .lcd-time { color: #f2f2f2; font-size: 14px; margin-left: 10px; letter-spacing: 1px; }
#prompt-bar #play-hint { flex: 1; font-size: 12px; color: #8a8a8a; }
#prompt-bar #btn-songs { height: 34px; padding: 0 18px; }
body.piano-app .tfield { color: #8a8a8a; }
body.piano-app .tfield input, body.piano-app .tfield select { background: #000; color: #f0f0f0; border-color: #3a3a3a; }
body.piano-app .tfield input:focus, body.piano-app .tfield select:focus { border-color: #8c8c8c; }
body.piano-app .tfield.master input[type="range"] { accent-color: #cfcfcf; }
body.piano-app .gbtn { background: #0e0e0e; color: #d0d0d0; border-color: #3a3a3a; }
body.piano-app .gbtn:hover { border-color: #cfcfcf; color: #fff; box-shadow: none; }
body.piano-app .gbtn.accent { background: #f0f0f0; color: #000; border-color: #f0f0f0; box-shadow: none; }
body.piano-app .gbtn.accent:hover { background: #fff; box-shadow: 0 0 12px rgba(255,255,255,.35); }
body.piano-app .btn-group { border-color: #3a3a3a; } body.piano-app .btn-group .gbtn { border-right-color: #3a3a3a; }
body.piano-app .btn-group .gbtn:hover { box-shadow: inset 0 0 12px rgba(255,255,255,.12); }
body.piano-app #center { background: var(--ink); }
body.piano-app #arrange-wrap { border-bottom: 1px solid #262626; }
body.piano-app #proll-head { background: #0a0a0a; border-bottom: 1px solid #262626; }
body.piano-app #proll-title { color: #cfcfcf; }
body.piano-app #proll-wrap { background: #050505; }
body.piano-app #aipanel { width: 34%; min-width: 380px; background: var(--panel); border-left: 1px solid #3a3a3a; display: flex; flex-direction: column; position: relative; }
body.piano-app #tracklist { display: none; }
body.piano-app .panel-head { background: #0a0a0a; border-bottom: 1px solid #262626; color: #cfcfcf; }
body.piano-app .panel-head.blue { color: #f2f2f2; }
body.piano-app .ai-badge { background: #1a1a1a; color: #cfcfcf; border: 1px solid #3a3a3a; }
body.piano-app #chat-log { background: #050505; }
body.piano-app .msg.user { background: #1c1c1c; color: #f0f0f0; border: 1px solid #333; }
body.piano-app .msg.assistant { background: #0f0f0f; color: #e6e6e6; border: 1px solid #262626; }
body.piano-app .msg.note { background: #000; border-color: #262626; color: #8a8a8a; }
body.piano-app .msg.note.ok { color: #cfcfcf; } body.piano-app .msg.note.err { color: #f0f0f0; border-color: #555; }
body.piano-app .msg.tool { background: #0c0c0c; border-color: #262626; }
body.piano-app .msg.tool.running { border-color: var(--lit); box-shadow: 0 0 10px rgba(224,185,90,.3); }
body.piano-app .msg.tool .tool-head { color: #cfcfcf; }
body.piano-app .spinner-sm { border-color: #3a3a3a; border-top-color: var(--lit); }
body.piano-app .msg.tool:not(.running) .spinner-sm { background: #cfcfcf; }
body.piano-app #chat-input-wrap { background: #0a0a0a; border-top: 1px solid #262626; }
body.piano-app #chat-input { background: #000; color: #f0f0f0; border-color: #3a3a3a; }
body.piano-app #chat-input:focus { border-color: #cfcfcf; box-shadow: none; }
body.piano-app .spinner { border-color: #3a3a3a; border-top-color: var(--lit); }
body.piano-app .loader-inner { background: #111; border-color: #3a3a3a; color: #f0f0f0; box-shadow: none; }
body.piano-app #toast { background: #f0f0f0; color: #000; box-shadow: 0 4px 30px rgba(0,0,0,.6); transform: translateX(-50%); }
body.piano-app #toast.err { background: #2a2a2a; color: #fff; border: 1px solid #555; }
body.piano-app dialog { background: #0e0e0e; border-color: #3a3a3a; box-shadow: 0 10px 60px rgba(0,0,0,.8); }
body.piano-app dialog h3 { color: #f0f0f0; }
body.piano-app .lib-row { border-color: #262626; } body.piano-app .lib-row.current { border-color: var(--lit); box-shadow: inset 0 0 12px rgba(224,185,90,.2); }
body.piano-app .dlg-body.form input, body.piano-app .dlg-body.form select { background: #000; border-color: #3a3a3a; }
#chatwrap { display: flex; flex-direction: column; flex: 1; min-height: 0; }
#chatwrap.hidden { display: none; }
#proll-head .legend { font-family: var(--font-mono); font-size: 10px; color: #8a8a8a; margin-left: 8px; display: inline-flex; gap: 6px; align-items: center; }
.legend .sw { display: inline-block; width: 10px; height: 10px; border-radius: 2px; }
.legend .sw.r { background: #f2f2f2; } .legend .sw.l { background: #8c8c8c; } .legend .sw.p { background: #4a4a4a; } .legend .sw.lit { background: #e0b95a; }
a.gbtn { text-decoration: none; display: inline-flex; align-items: center; }
.thanks { max-width: 720px; line-height: 1.8; font-size: 13px; }
.thanks p { margin-bottom: 10px; }
.thanks b { color: #fff; }

/* ── VESPER stage (右側) ── */
#stage { position: absolute; inset: 0; background: #000; display: flex; flex-direction: column; }
#stage.hidden { display: none; }
#stage-canvas { width: 100%; height: 100%; display: block; }
#stage-hud { position: absolute; top: 8px; left: 10px; right: 10px; display: flex; justify-content: space-between; font-family: var(--font-mono); font-size: 11px; color: #e6e6e6; text-shadow: 0 0 6px rgba(0,0,0,.9); pointer-events: none; }
#stage-title { font-family: var(--font-display); letter-spacing: 3px; font-size: 14px; color: #fff; }
#stage-pedal { position: absolute; right: 12px; bottom: 12px; font-family: var(--font-display); letter-spacing: 3px; font-size: 11px; color: #4a4a4a; border: 1px solid #333; padding: 3px 10px; border-radius: 4px; background: rgba(0,0,0,.6); transition: all .12s; }
#stage-pedal.on { color: #000; background: var(--lit); border-color: var(--lit); box-shadow: 0 0 12px rgba(224,185,90,.7); }
#btn-stage-chat { position: absolute; left: 12px; bottom: 12px; }
#stage .divider { position: absolute; left: 0; right: 0; top: 58%; height: 1px; background: rgba(255,255,255,.18); pointer-events: none; }
#stage-jam { position: absolute; left: 12px; top: 30px; font-family: var(--font-mono); font-size: 10px; color: #cfcfcf; background: rgba(0,0,0,.55); padding: 2px 6px; border-radius: 3px; display: none; }
#stage-jam.on { display: block; }
#stage-pip { position: absolute; left: 8px; width: 30%; height: 19%; top: calc(58% - 19% - 8px); border: 1px solid rgba(255,255,255,.4); border-radius: 3px; pointer-events: none; box-shadow: 0 0 0 1px rgba(0,0,0,.6); }
#stage-pip::after { content: "PEDAL / RIGHT FOOT"; position: absolute; left: 6px; top: 4px; font-family: var(--font-mono); font-size: 9px; letter-spacing: 1px; color: #cfcfcf; text-shadow: 0 0 4px #000; }

/* ═══════════ v3: ピアノロールだけ + お題バー + 舞台は常時 ═══════════ */
body.piano-app #arrange-wrap { display: none; }
body.piano-app #center { display: flex; flex-direction: column; min-width: 0; }
body.piano-app #proll-head { padding: 6px 12px; display: flex; align-items: center; gap: 12px; }
body.piano-app #proll-head .song-title { font-family: var(--font-display); letter-spacing: 2px; font-size: 14px; color: #fff; max-width: 40%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
body.piano-app #proll-hint { margin-left: auto; text-align: right; }
body.piano-app #proll-wrap { flex: 1; min-height: 0; }
#prompt-bar { display: flex; gap: 8px; align-items: center; padding: 8px 12px; background: #0a0a0a; border-top: 1px solid #3a3a3a; }
#prompt-bar .mode-tabs { display: flex; border: 1px solid #3a3a3a; border-radius: 6px; overflow: hidden; }
#prompt-bar .mtab { background: #0e0e0e; color: #8a8a8a; border: none; padding: 7px 14px; font-weight: 700; cursor: pointer; letter-spacing: 1px; }
#prompt-bar .mtab.on { background: #f0f0f0; color: #000; }
#prompt-bar input { flex: 1; background: #000; color: #f0f0f0; border: 1px solid #3a3a3a; border-radius: 6px; padding: 8px 10px; font-family: var(--font-body); font-size: 13px; }
#prompt-bar input:focus { outline: none; border-color: #cfcfcf; }
#prompt-bar select { background: #000; color: #d0d0d0; border: 1px solid #3a3a3a; border-radius: 6px; padding: 7px 8px; font-family: var(--font-mono); font-size: 11px; }
#prompt-bar #btn-go { padding: 0 16px; height: 34px; }
#status-bar { padding: 4px 12px 6px; background: #0a0a0a; font-family: var(--font-mono); font-size: 10.5px; color: #9a9a9a; min-height: 22px; white-space: pre-wrap; max-height: 64px; overflow-y: auto; border-top: 1px solid #1c1c1c; }
#status-bar .lit { color: var(--lit); }
body.piano-app #aipanel { width: 36%; min-width: 400px; }
#stage { position: absolute; inset: 0; }
#stage-tools { position: absolute; left: 10px; bottom: 10px; display: flex; gap: 4px; }
.vbtn { background: rgba(0,0,0,.6); color: #cfcfcf; border: 1px solid #3a3a3a; border-radius: 4px; font-family: var(--font-mono); font-size: 10px; padding: 3px 8px; cursor: pointer; }
.vbtn:hover { color: #fff; border-color: #cfcfcf; }
.vbtn.on { background: #f0f0f0; color: #000; border-color: #f0f0f0; }
#stage-label-hands { position: absolute; right: 10px; bottom: 10px; font-family: var(--font-display); letter-spacing: 3px; font-size: 11px; color: #8a8a8a; pointer-events: none; }
#stage .divider { position: absolute; left: 0; right: 0; top: 58%; height: 1px; background: rgba(255,255,255,.18); pointer-events: none; }
/* 全画面: 左 = 全体, 右 = 指先 */
body.stage-full #aipanel { position: fixed; inset: 0; width: 100vw; min-width: 0; z-index: 50; border: none; }
body.stage-full #stage .divider { top: 0; bottom: 0; left: 60%; right: auto; width: 1px; height: auto; }
body.stage-full #stage-tools { bottom: 14px; left: 14px; }
body.stage-full #stage-label-hands { bottom: 14px; }
body.stage-full #stage-hud { font-size: 13px; }
body.stage-full #stage-title { font-size: 18px; }
body.piano-app .gbtn.tiny { white-space: nowrap; }
body.piano-app .transport { flex-wrap: nowrap; }
body.piano-app #topbar { gap: 10px; }

#stage-close { position:absolute; left:10px; bottom:10px; display:flex; gap:4px; z-index:4; }
body.piano-shot .divider, body.piano-shot #stage-close, body.piano-shot #stage-label-hands { display:none; }

/* Main-view controls stay in the main image; close controls stay in the close image. */
#stage-tools { bottom:calc(42% + 10px); }
body.stage-full #stage-close { left:calc(60% + 14px); bottom:14px; }
body.piano-shot #stage-tools { bottom:14px; }
/* 携帯・タブレット (幅 900px まで) の並びは ../phone.css (ピアノとバンド共通) */