/* Motor Test Bench - light, minimal theme */
:root {
  --bg: #f5f6f8;
  --panel: #ffffff;
  --panel-2: #f3f4f6;
  --edge: #e3e6ea;
  --text: #1f2430;
  --muted: #6b7280;
  --accent: #2563eb;
  --good: #16a34a;
  --warn: #b45309;
  --bad: #dc2626;
  font-size: 14px;
}
:root[data-theme="dark"] {
  --bg: #0d1117;
  --panel: #161b22;
  --panel-2: #1c2330;
  --edge: #2b3444;
  --text: #dbe4f0;
  --muted: #8494ab;
  --accent: #35c9f0;
  --good: #3ddc84;
  --warn: #ffb02e;
  --bad: #ff5252;
}
/* literal-color rules that need dark variants */
[data-theme="dark"] button.action.primary { color: #0d1117; }
[data-theme="dark"] button.action.primary:hover { background: #b9c6da; }
[data-theme="dark"] button.action.danger { border-color: #6b2a2a; }
[data-theme="dark"] button.action.danger:hover { background: #2a1616; }
[data-theme="dark"] button.action.armed { background: #0d2f3d; }
[data-theme="dark"] .warnlight.lit-bad  { background: #4a1414; }
[data-theme="dark"] .warnlight.lit-warn { background: #4a3a10; }
[data-theme="dark"] .btn-group button.active { background: #0d3a4d; }
[data-theme="dark"] .note-card, [data-theme="dark"] .tour-card {
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.5);
}

* { box-sizing: border-box; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}
html, body { height: 100%; margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", system-ui, sans-serif;
  display: flex; flex-direction: column;
  overflow: hidden;
}

/* ---------------------------------------------------------------- header */
#topbar {
  display: flex; align-items: center; gap: 14px;
  padding: 8px 16px;
  background: var(--panel);
  border-bottom: 1px solid var(--edge);
  flex: 0 0 auto;
}
.brand { font-weight: 600; white-space: nowrap; }
.spacer { flex: 1; }
.chips { display: flex; gap: 10px; }
.chip {
  font-size: 12px; padding: 2px 0;
  color: var(--muted); white-space: nowrap;
}
.chip.good { color: var(--good); }
.chip.bad  { color: var(--bad); }
.chip.warn { color: var(--warn); }

#preset-select {
  background: var(--panel); color: var(--text);
  border: 1px solid var(--edge); border-radius: 6px; padding: 5px 8px;
  max-width: 260px; font-size: 13px;
}
.icon-btn {
  background: var(--panel); border: 1px solid var(--edge);
  border-radius: 6px; color: var(--muted); padding: 5px 12px; cursor: pointer;
  font-size: 12.5px;
}
.icon-btn.on { color: var(--accent); border-color: var(--accent); }

/* warning badges: hidden unless active */
#warning-lights { display: flex; gap: 6px; }
.warnlight {
  display: none;
  font-size: 12px; font-weight: 500;
  padding: 2px 10px; border-radius: 999px;
}
.warnlight.lit-bad  { display: inline-block; background: #fbe9e9; color: var(--bad); }
.warnlight.lit-warn { display: inline-block; background: #f9efdd; color: var(--warn); }

/* ---------------------------------------------------------------- layout */
#layout {
  flex: 1; display: grid; min-height: 0;
  grid-template-columns: 1fr 330px 320px;
  grid-template-rows: minmax(0, 1.25fr) minmax(0, 1fr);
  grid-template-areas:
    "scene dash controls"
    "charts charts controls";
  gap: 10px; padding: 10px;
}
#scene-panel   { grid-area: scene; position: relative; overflow: hidden; }
#dash-panel    { grid-area: dash; overflow-y: auto; }
#controls-panel{ grid-area: controls; display: flex; flex-direction: column; min-height: 0; }
#charts-panel  { grid-area: charts; display: flex; flex-direction: column; min-height: 0; }

#scene-panel, #dash-panel, #controls-panel, #charts-panel {
  background: var(--panel); border: 1px solid var(--edge); border-radius: 8px;
}
#scene-canvas { width: 100%; height: 100%; display: block; }
#scene-hud {
  position: absolute; top: 12px; left: 16px; pointer-events: none;
  display: flex; flex-direction: column; gap: 2px;
}
#hud-rpm { font-size: 22px; font-weight: 600; color: var(--text); }
#hud-note { font-size: 12px; color: var(--muted); }
.orbit-hint {
  position: absolute; bottom: 12px; left: 50%; transform: translateX(-50%);
  font-size: 11.5px; color: var(--muted); pointer-events: none;
  background: var(--panel); border: 1px solid var(--edge); border-radius: 999px;
  padding: 4px 14px; white-space: nowrap;
  transition: opacity 0.6s;
}
.orbit-hint.hidden { opacity: 0; }

.dual-toggle {
  font-size: 12.5px; color: var(--muted); user-select: none; white-space: nowrap;
}
.dual-toggle input { accent-color: var(--accent); }

/* ---------------------------------------------------------------- gauges */
#gauges {
  display: grid; grid-template-columns: 1fr 1fr; gap: 4px; padding: 10px;
}
.power-strip {
  grid-column: 1 / -1;
  display: flex; justify-content: space-between;
  padding: 8px 10px 10px;
  border-bottom: 1px solid var(--edge);
}
.power-cell { display: flex; flex-direction: column; align-items: center; gap: 1px; }
.power-val { font-size: 15px; font-weight: 600; font-variant-numeric: tabular-nums; }
.power-label { font-size: 11px; color: var(--muted); }
.gauge-cell { display: flex; flex-direction: column; align-items: center; }
.gauge-cell canvas { width: 100%; height: auto; }

/* --------------------------------------------------------------- controls */
#tabs {
  display: flex; flex: 0 0 auto; border-bottom: 1px solid var(--edge);
}
#tabs button {
  flex: 1; background: none; border: none; color: var(--muted);
  padding: 10px 4px; cursor: pointer; font-size: 13px;
  border-bottom: 2px solid transparent;
}
#tabs button.active { color: var(--text); font-weight: 600; border-bottom-color: var(--text); }
#tab-bodies { flex: 1; overflow-y: auto; padding: 14px; min-height: 0; }
.tab-body { display: none; flex-direction: column; gap: 12px; }
.tab-body.active { display: flex; }

.ctl-row { display: flex; align-items: center; gap: 8px; }
.ctl-row label { flex: 0 0 108px; font-size: 12.5px; color: var(--muted); }
.ctl-row input[type=range] { flex: 1; accent-color: var(--accent); }
.ctl-row .val { flex: 0 0 64px; text-align: right; font-variant-numeric: tabular-nums; font-size: 12.5px; }

.ctl-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.ctl-field { display: flex; flex-direction: column; gap: 3px; }
.ctl-field label { font-size: 12px; color: var(--muted); }
.ctl-field input, .ctl-field select {
  background: var(--panel); border: 1px solid var(--edge); border-radius: 6px;
  color: var(--text); padding: 6px 8px; width: 100%; font-size: 13px;
}
.ctl-field input:focus, .ctl-field select:focus,
#preset-select:focus {
  outline: none; border-color: var(--accent);
}

button.action {
  background: var(--panel); border: 1px solid var(--edge); border-radius: 6px;
  color: var(--text); padding: 8px 10px; cursor: pointer;
  font-size: 13px; font-family: inherit;
}
button.action:hover { background: var(--panel-2); }
button.action.primary { background: var(--text); border-color: var(--text); color: #fff; }
button.action.primary:hover { background: #333a48; }
button.action.danger  { color: var(--bad); border-color: #f0c9c9; }
button.action.danger:hover { background: #fbf1f1; }
button.action.armed   { color: var(--accent); border-color: var(--accent); background: #f0f5ff; }
.btn-row { display: flex; gap: 8px; }
.btn-row > * { flex: 1; }

.btn-group { display: inline-flex; border: 1px solid var(--edge); border-radius: 6px; overflow: hidden; }
.btn-group button {
  background: var(--panel); border: none; color: var(--muted);
  padding: 5px 12px; cursor: pointer; font-size: 12.5px; font-family: inherit;
}
.btn-group button + button { border-left: 1px solid var(--edge); }
.btn-group button.active { background: var(--panel-2); color: var(--text); font-weight: 600; }

.section-title {
  font-size: 12px; font-weight: 600; color: var(--text);
  margin: 6px 0 0;
  border-top: 1px solid var(--edge); padding-top: 12px;
}
.hint { font-size: 12px; color: var(--muted); line-height: 1.5; }

/* runs list */
#runs-list { display: flex; flex-direction: column; gap: 6px; }
.run-item {
  display: flex; align-items: center; gap: 8px; font-size: 12.5px;
  border: 1px solid var(--edge);
  border-radius: 6px; padding: 6px 10px;
}
.run-item .run-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.run-item a { color: var(--accent); text-decoration: none; }
.run-item button { background: none; border: none; color: var(--muted); cursor: pointer; font-size: 14px; }
.run-item button:hover { color: var(--bad); }

/* --------------------------------------------------------------- charts */
#charts-toolbar {
  display: flex; align-items: center; gap: 14px; padding: 8px 14px;
  border-bottom: 1px solid var(--edge); flex: 0 0 auto;
}
.charts-title { font-size: 13px; font-weight: 600; color: var(--text); }
.compare-toggle { font-size: 12.5px; color: var(--muted); margin-left: auto; user-select: none; }
#charts {
  flex: 1; display: grid; grid-template-columns: 1fr 1fr; gap: 4px;
  padding: 8px; min-height: 0; overflow: hidden;
}
.chart-cell { position: relative; min-height: 0; }
.fft-btn {
  position: absolute; top: 4px; right: 6px; z-index: 5;
  background: var(--panel); border: 1px solid var(--edge); border-radius: 5px;
  color: var(--muted); font-size: 10px; padding: 1px 7px; cursor: pointer;
}
.fft-btn.active { color: var(--accent); border-color: var(--accent); }
.chart-stats {
  font-size: 10px; color: var(--muted); padding: 0 6px;
  font-variant-numeric: tabular-nums; white-space: pre;
  overflow: hidden; text-overflow: ellipsis;
}
.u-legend { font-size: 10px !important; color: var(--muted); }
.uplot { font-family: inherit !important; }

/* ------------------------------------------------------ script tab */
.script-json {
  width: 100%; min-height: 180px; resize: vertical;
  background: var(--panel-2); border: 1px solid var(--edge); border-radius: 6px;
  color: var(--text); padding: 8px; font: 11.5px/1.45 Consolas, monospace;
}
.script-json:focus { outline: none; border-color: var(--accent); }

.load-canvas {
  width: 100%; border: 1px solid var(--edge); border-radius: 6px;
  cursor: crosshair; touch-action: none;
}

/* ------------------------------------------------------ replay bar */
.replay-bar {
  position: absolute; left: 16px; right: 120px; bottom: 12px;
  display: flex; align-items: center; gap: 10px;
  background: var(--panel); border: 1px solid var(--edge); border-radius: 999px;
  padding: 6px 14px; font-size: 12px;
}
.replay-bar input[type=range] { flex: 1; accent-color: var(--accent); }
.replay-bar button {
  background: none; border: none; color: var(--text); cursor: pointer;
  font-size: 13px; padding: 0 2px;
}
.replay-bar .replay-label { color: var(--muted); white-space: nowrap; font-variant-numeric: tabular-nums; }

/* ------------------------------------------------------ annotations */
#annotations {
  position: absolute; left: 16px; bottom: 14px;
  display: flex; flex-direction: column; gap: 8px;
  max-width: 340px; pointer-events: none;
}
.note-card {
  background: var(--panel); border: 1px solid var(--edge); border-radius: 8px;
  padding: 10px 12px; pointer-events: auto;
  box-shadow: 0 2px 10px rgba(30, 38, 55, 0.08);
}
.note-card .note-head {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 12.5px; font-weight: 600;
}
.note-card .note-head button {
  background: none; border: none; color: var(--muted); cursor: pointer;
  font-size: 14px; padding: 0 2px;
}
.note-card p { margin: 5px 0 0; font-size: 12px; color: var(--muted); line-height: 1.5; }
.gauge-pop {
  position: fixed; z-index: 65; width: 320px;
}
.gauge-pop p:nth-of-type(-n+3) {
  font-family: Consolas, monospace; font-size: 11.5px; color: var(--text);
}

/* ------------------------------------------------------------ modal */
.modal-overlay {
  position: fixed; inset: 0; z-index: 70;
  background: rgba(20, 25, 35, 0.45);
  display: flex; align-items: center; justify-content: center;
}
.modal {
  background: var(--panel); border: 1px solid var(--edge); border-radius: 10px;
  width: min(640px, 92vw); max-height: 84vh; overflow-y: auto;
  padding: 14px 16px; display: flex; flex-direction: column; gap: 10px;
}
.modal-head {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 14px; font-weight: 600;
}
.modal-head button {
  background: none; border: none; color: var(--muted); cursor: pointer; font-size: 18px;
}
.diff-table { display: flex; flex-direction: column; font-size: 12px; }
.diff-row {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 8px;
  padding: 3px 6px; border-radius: 4px;
  font-variant-numeric: tabular-nums;
}
.diff-row span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.diff-row.diff-header { font-weight: 600; color: var(--muted); border-bottom: 1px solid var(--edge); }
.diff-row.differs { background: var(--panel-2); font-weight: 600; }

/* ------------------------------------------------------------- tour */
.tour-card {
  position: fixed; z-index: 60; width: 320px;
  background: var(--panel); border: 1px solid var(--edge); border-radius: 8px;
  padding: 12px 14px;
  box-shadow: 0 4px 18px rgba(30, 38, 55, 0.14);
}
.tour-card .tour-title { font-size: 13px; font-weight: 600; }
.tour-card p { margin: 6px 0 10px; font-size: 12.5px; color: var(--muted); line-height: 1.5; }
.tour-target { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }

@media (max-width: 1250px) {
  #layout {
    grid-template-columns: 1fr 300px;
    grid-template-rows: minmax(0, 1fr) minmax(0, 0.8fr) minmax(0, 0.9fr);
    grid-template-areas:
      "scene controls"
      "dash controls"
      "charts charts";
  }
  #gauges { grid-template-columns: repeat(3, 1fr); }
}