/* 配置：左に 3D、その下にロジックアナライザー、右に操作パネル（スマホでは縦に並ぶ）。
   色は teenage engineering 寄り：グレー＋原色 */
:root {
  --bg: #E7E7E2; --stage: #F3F3EF; --panel: #FBFBF8; --fg: #141414; --muted: #5C5C57; --line: #C9C9C3;
  --grid: #E4E3DC; --chip: #E2E2DC; --accent: #FF4F00; --accent-fg: #141414; --on: #141414; --on-fg: #F2F1EC;
  --warn: #9A6B00; --warn-bg: #FFF3CC; --err: #B42318; --err-bg: #FDE4E1;
  --display: 'Inter Tight', 'Noto Sans JP', system-ui, sans-serif;
  --body: 'Noto Sans JP', system-ui, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, Menlo, monospace;
}
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) {
  --bg: #121211; --stage: #1B1B19; --panel: #1F1F1D; --fg: #EDEDE8; --muted: #A3A39C; --line: #3A3A36;
  --grid: #2B2B28; --chip: #2A2A27; --accent: #FF6A2A; --accent-fg: #141414; --on: #EDEDE8; --on-fg: #141414;
  --warn: #FFC500; --warn-bg: #3A3110; --err: #FF8A7A; --err-bg: #3C1A16; color-scheme: dark } }
:root[data-theme="dark"] {
  --bg: #121211; --stage: #1B1B19; --panel: #1F1F1D; --fg: #EDEDE8; --muted: #A3A39C; --line: #3A3A36;
  --grid: #2B2B28; --chip: #2A2A27; --accent: #FF6A2A; --accent-fg: #141414; --on: #EDEDE8; --on-fg: #141414;
  --warn: #FFC500; --warn-bg: #3A3110; --err: #FF8A7A; --err-bg: #3C1A16; color-scheme: dark }

html, body { height: 100%; }
body { margin: 0; background: var(--bg); color: var(--fg); font-family: var(--body); font-size: 14px;
  padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px));
  padding-block: 14px; box-sizing: border-box; }
*, *::before, *::after { box-sizing: inherit; }
[hidden] { display: none !important; }

.app { height: 100%; display: grid; gap: 12px 16px;
  grid-template-columns: minmax(0, 1fr) 360px;
  grid-template-rows: auto minmax(260px, 1fr) auto;
  grid-template-areas: "top top" "stage panel" "scope panel"; }
.top { grid-area: top; display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 10px 20px;
  border-bottom: 1px solid var(--fg); padding-bottom: 10px; }
.brand h1 { margin: 0; font-family: var(--display); font-weight: 600; font-size: 28px; letter-spacing: -0.02em; line-height: 1; }
.brand h1 span { font-family: var(--body); font-weight: 700; font-size: 14px; letter-spacing: 0; margin-left: 10px; }
.spec { font-family: var(--mono); font-size: 11px; letter-spacing: 0.05em; color: var(--muted); margin-top: 6px; }
.offline { display: inline-block; margin-top: 6px; font-size: 12px; color: var(--fg); text-underline-offset: 3px; }
.offline:hover { color: var(--accent); }
.transport { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 16px; }
.play { display: inline-flex; align-items: center; gap: 10px; font: 700 15px var(--body); color: var(--accent-fg); background: var(--accent);
  border: 0; border-radius: 999px; padding: 0 20px 0 16px; min-height: 44px; cursor: pointer; }
.play-icon { width: 0; height: 0; border-left: 12px solid currentColor; border-top: 7px solid transparent; border-bottom: 7px solid transparent; }
.play[aria-pressed="true"] .play-icon { width: 12px; height: 12px; border: 0; background: currentColor; border-radius: 2px; }
.tempo { display: flex; flex-direction: column; gap: 2px; width: 150px; }
.speed { display: flex; flex-direction: column; gap: 2px; }
.readout { display: flex; align-items: baseline; gap: 6px; font-family: var(--mono); min-width: 190px; }
.bpm { font-family: var(--display); font-size: 30px; font-weight: 600; font-variant-numeric: tabular-nums; min-width: 2.2em; text-align: right; }
.unit { font-size: 11px; color: var(--muted); }
.pos { font-size: 12px; color: var(--muted); margin-left: 6px; font-variant-numeric: tabular-nums; }

.stage { grid-area: stage; position: relative; background: var(--stage); border-radius: 14px; overflow: hidden; min-height: 260px; }
.stage canvas { display: block; width: 100%; height: 100%; touch-action: none; }
.views { position: absolute; left: 12px; top: 12px; display: flex; flex-wrap: wrap; gap: 6px; }
.status { position: absolute; right: 14px; top: 14px; font-family: var(--mono); font-size: 11px; color: var(--muted); pointer-events: none; text-align: right; }
.hint { position: absolute; left: 14px; bottom: 10px; right: 14px; font-family: var(--mono); font-size: 10.5px; color: var(--muted); pointer-events: none; }

.scope { grid-area: scope; background: var(--panel); border-radius: 14px; padding: 10px 12px 8px; min-width: 0; }
.scope-head { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 6px 12px; margin-bottom: 4px; }
.legend { font-size: 11px; color: var(--muted); display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.legend i { display: inline-block; width: 16px; height: 0; border-top: 1px solid var(--muted); margin-left: 6px; }
.legend i.l-st { border-top: 3px solid var(--accent); }
.legend i.l-note { width: 0; border-top: 6px solid var(--accent); border-left: 4px solid transparent; border-right: 4px solid transparent; }
.scope canvas { display: block; width: 100%; height: 160px; }

.panel { grid-area: panel; background: var(--panel); border-radius: 14px; display: flex; flex-direction: column; min-width: 0; min-height: 0; }
.tabs { display: grid; grid-template-columns: repeat(4, 1fr); border-bottom: 1px solid var(--line); }
.tabs button { font: 600 13px var(--body); color: var(--muted); background: none; border: 0; border-bottom: 3px solid transparent; padding: 12px 4px 9px; cursor: pointer; }
.tabs button[aria-selected="true"] { color: var(--fg); border-bottom-color: var(--accent); }
.pane { padding: 14px 16px 18px; display: flex; flex-direction: column; gap: 16px; overflow-y: auto; min-height: 0; flex: 1; }

.label, legend { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.08em; color: var(--muted); text-transform: uppercase; }
fieldset { border: 0; border-top: 1px solid var(--line); margin: 0; padding: 10px 0 0; display: flex; flex-direction: column; gap: 10px; min-width: 0; }
legend { padding: 0 6px 0 0; }
.field { display: flex; flex-direction: column; gap: 8px; }
.row { display: flex; flex-wrap: wrap; gap: 6px; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 12px; }
.note { font-size: 12px; line-height: 1.6; color: var(--muted); margin: 0; }
.vnote { font-size: 12px; line-height: 1.6; margin: 0; }

button.seg, label.seg, select, input[type="number"], textarea { font: 500 13px var(--body); color: var(--fg); background: var(--chip);
  border: 1px solid transparent; border-radius: 8px; }
button.seg, label.seg { padding: 0 12px; min-height: 34px; cursor: pointer; display: inline-flex; align-items: center; }
button.seg:hover, label.seg:hover { border-color: var(--line); }
button.seg[aria-pressed="true"] { background: var(--accent); color: var(--accent-fg); }
button.seg.wide { justify-content: center; }
select { min-height: 34px; padding: 0 8px; }
input[type="number"] { width: 100%; min-height: 32px; padding: 0 8px; font-family: var(--mono); font-variant-numeric: tabular-nums; }
label.num { display: grid; grid-template-columns: 1fr; gap: 3px; font-size: 12px; color: var(--muted); position: relative; }
textarea { width: 100%; font-family: var(--mono); font-size: 11px; padding: 8px; resize: vertical; }
label.file input { position: absolute; width: 1px; height: 1px; opacity: 0; }
label.file { position: relative; }
label.file:focus-within { outline: 2px solid var(--accent); outline-offset: 2px; }
input[type="range"] { width: 100%; accent-color: var(--accent); }
.check { display: flex; align-items: center; gap: 8px; font-size: 13px; min-height: 30px; cursor: pointer; }
.check input { width: 18px; height: 18px; accent-color: var(--accent); }
button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
details summary { cursor: pointer; font-size: 12.5px; padding: 4px 0; }
details[open] { display: flex; flex-direction: column; gap: 8px; }

/* 演奏：トラック */
.tracks { display: flex; flex-direction: column; gap: 12px; }
.track { display: flex; flex-direction: column; gap: 6px; padding: 10px; border-radius: 10px; border: 1px solid var(--line); }
.track.sel { border-color: var(--fg); }
.track-head { display: flex; align-items: center; gap: 8px; }
.chip { width: 14px; height: 14px; border-radius: 4px; flex: none; }
.track-head .name { font-weight: 700; font-size: 13px; cursor: pointer; background: none; border: 0; color: var(--fg); padding: 0; font-family: var(--body); }
.track-head select { margin-left: auto; min-height: 30px; }
.track-head .clear { min-height: 30px; padding: 0 8px; font-size: 12px; }
.steps { display: grid; grid-template-columns: repeat(16, minmax(0, 1fr)); gap: 3px; }
.steps button { aspect-ratio: 1 / 1.35; min-width: 0; max-width: 100%; border-radius: 4px; border: 1px solid var(--line); background: var(--chip); cursor: pointer; padding: 0; position: relative; }
.steps button.beat { border-color: var(--muted); }
.steps button[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); }
.steps button.now::after { content: ""; position: absolute; left: 2px; right: 2px; bottom: -6px; height: 3px; border-radius: 2px; background: var(--fg); }
.steps-num { display: grid; grid-template-columns: repeat(16, minmax(0, 1fr)); gap: 3px; font-family: var(--mono); font-size: 9px; color: var(--muted); text-align: center; margin-top: 4px; }

/* 構成：子歯車 */
.children { display: flex; flex-direction: column; gap: 10px; }
.child { display: grid; grid-template-columns: auto 1fr auto; gap: 6px 8px; align-items: center; padding: 10px; border: 1px solid var(--line); border-radius: 10px; }
.child.sel { border-color: var(--fg); }
.child .title { font-weight: 700; font-size: 13px; }
.child .sub { grid-column: 1 / -1; display: grid; grid-template-columns: 5.5em 1fr 3.5em; gap: 4px 8px; align-items: center; font-size: 12px; color: var(--muted); }
.child .sub output { font-family: var(--mono); font-variant-numeric: tabular-nums; text-align: right; color: var(--fg); }
.child .opts { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 6px 12px; align-items: center; font-size: 12px; }
.child .del { min-height: 28px; font-size: 12px; padding: 0 10px; }
.warnings { display: flex; flex-direction: column; gap: 6px; }
.warnings p { margin: 0; font-size: 12.5px; line-height: 1.5; padding: 8px 10px; border-radius: 8px; }
.warnings .warn { color: var(--warn); background: var(--warn-bg); }
.warnings .error { color: var(--err); background: var(--err-bg); }
.warnings .ok { color: var(--muted); background: var(--chip); }

/* 部品・信号 */
dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 5px 12px; font-size: 12.5px; }
dt { font-family: var(--mono); font-size: 11px; color: var(--muted); padding-top: 1px; }
dd { margin: 0; font-variant-numeric: tabular-nums; }
.swatch { display: inline-block; width: 10px; height: 10px; border-radius: 3px; margin-right: 6px; vertical-align: -1px; }
.sw-white { background: #F2F1EC; outline: 1px solid var(--line); }
.stats dd { font-family: var(--mono); }
.tablewrap { overflow-x: auto; }
table.pins { border-collapse: collapse; width: 100%; font-size: 12px; }
table.pins td { padding: 5px 6px; border-bottom: 1px solid var(--line); }
table.pins td:first-child { font-family: var(--mono); width: 3.5em; }
table.pins td.lv { font-family: var(--mono); text-align: right; color: var(--muted); }
table.pins td.lv.hi { color: var(--accent); font-weight: 500; }

@media (max-width: 900px) {
  .app { height: auto; grid-template-columns: minmax(0, 1fr); grid-template-rows: auto 58vh auto auto;
    grid-template-areas: "top" "stage" "scope" "panel"; }
  .pane { overflow: visible; }
  .tempo { width: 130px; }
}
@media (max-width: 420px) {
  .brand h1 span { display: block; margin: 6px 0 0; }
  .readout { min-width: 0; }
  .grid2 { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; } }