@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ============================================================
   Skate Commander — design system
   Neutral graphite surfaces · hairline borders · two-role color:
     azure  = state/actual (fills, SIM, active tab)
     amber  = command/attention (thumb, REAL, warnings)
     green/red are reserved for safety states only.
   ============================================================ */
:root {
  --bg: #0E1013; --bg2: #08090B; --panel: #16191E; --panel2: #1E222A; --panel3: #1E222A; --raise: #1E222A;
  --line: #2A2F37; --line2: #2A2F37; --line-soft: #21262d;
  --fg: #D6DAE0; --fg2: #9AA1AB; --dim: #8B929C; --faint: #5A616B;
  --accent: #3B82F6; --accent-lt: #6AA0F8; --accent-dk: #2D6FE0; --accent-deep: #2D6FE0; --accent-ink: #0a1220;
  --accent-soft: rgba(59,130,246,.12);
  --amber: #F5A623; --amber-soft: rgba(245,166,35,.12);
  --ok: #3FB950; --ok-soft: rgba(63,185,80,.12);
  --bad: #E5484D; --bad-soft: rgba(229,72,77,.12);
  --grid: rgba(150,160,175,.05); --grid2: rgba(150,160,175,.09);
  --x: #FF6981; --y: #3FB950; --z: #7A95FF;
  --sans: "Inter","Segoe UI",system-ui,sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "Cascadia Mono", monospace;
  --ease: cubic-bezier(.4,0,.2,1);
  --r: 8px; --r-lg: 14px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  background: var(--bg); color: var(--fg);
  font: 13.5px/1.5 "Inter", "Segoe UI", system-ui, sans-serif;
  font-variant-numeric: tabular-nums;        /* live readouts never reflow */
  display: flex; flex-direction: column; overflow: hidden;
  -webkit-font-smoothing: antialiased;
}
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ============ top bar: identity · mode · status cluster · E-STOP ===== */
#topbar {
  display: flex; align-items: center; gap: 14px;
  height: 56px; padding: 0 16px; white-space: nowrap;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}
#logo { font: 700 13px var(--mono); letter-spacing: .14em;
  padding-right: 14px; border-right: 1px solid var(--line2); }
#logo span { color: var(--accent); }
#logo em {
  font: 500 9px var(--mono); color: var(--dim); margin-left: 9px;
  padding: 3px 8px; border: 1px solid var(--line2); border-radius: 99px;
  letter-spacing: .06em; vertical-align: 2px;
  background: var(--panel2);
}

#mode-toggle {
  display: flex; border: 1px solid var(--line2); border-radius: 99px; padding: 3px;
  cursor: pointer; user-select: none;
  background: var(--panel2);
}
#mode-toggle div {
  padding: 4px 15px; font: 700 10.5px var(--sans); letter-spacing: .1em;
  color: var(--dim); border-radius: 99px; transition: .18s var(--ease);
}
#mode-toggle div.active.sim { color: var(--accent-ink);
  background: var(--accent);
  box-shadow: none; }
#mode-toggle div.active.real { color: #201400;
  background: var(--amber);
  box-shadow: none; }

#observe-toggle {
  display: flex; border: 1px solid var(--line2); border-radius: 99px; padding: 3px;
  cursor: pointer; user-select: none;
  background: var(--panel2);
}
#observe-toggle span {
  padding: 4px 15px; font: 700 10.5px var(--sans); letter-spacing: .1em;
  color: var(--dim); border-radius: 99px; transition: .18s var(--ease);
}
#observe-toggle.on span { color: var(--accent-ink); background: var(--accent); }

/* status cluster — one bordered group: telemetry reads distinctly from actions */
.status-cluster {
  display: flex; align-items: center; gap: 5px; padding: 5px 7px;
  min-width: 0; flex-shrink: 1;
  border: 1px solid var(--line); border-radius: 99px;
  background: var(--panel2);
}
.chip {
  display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px;
  border-radius: 99px; font: 500 10px var(--mono); letter-spacing: .05em;
  color: var(--dim); border: 1px solid transparent; transition: color .2s, background .2s;
}
.chip::before { content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: currentColor; box-shadow: none; }
.chip.on  { color: var(--ok);    background: var(--ok-soft); }
.chip.bad { color: var(--bad);   background: var(--bad-soft); }
.chip.warn{ color: var(--amber); background: var(--amber-soft); }
.chip.moving { animation: chip-breathe 1.1s ease-in-out infinite; }   /* idle solid -> moving pulse */
@keyframes chip-breathe { 0%,100% { opacity: 1 } 50% { opacity: .5 } }
@media (max-width: 1620px) {          /* tighten spacing first — keep chip text */
  #menubar { gap: 2px; }
  #menubar #logo { margin-right: 6px; }
  #menus .menu { padding: 5px 5px; }
  #menubar .chip { gap: 3px; padding-left: 6px; padding-right: 6px; }
}
@media (max-width: 1360px) {          /* genuinely narrow — collapse chips to icons */
  #menubar .chip { font-size: 0; padding: 4px; gap: 0; }
  #menubar .chip::before { box-shadow: none; }
}

/* shared button base — subtle gradient, hairline, azure hover glow (site .btn) */
button {
  cursor: pointer; border: 1px solid var(--line2); color: var(--fg2);
  border-radius: 9px; padding: 7px 13px; font: 600 11.5px var(--sans);
  letter-spacing: .03em; transition: .18s var(--ease);
  background: var(--panel2);
  box-shadow: none;
}
button:hover { border-color: rgba(56,160,255,.55); color: var(--fg);
  box-shadow: none; }
button:disabled { opacity: .38; cursor: not-allowed; box-shadow: none; }
button:disabled:hover { border-color: var(--line2); color: var(--fg2); box-shadow: none; }

#btn-estop {
  margin-left: auto; color: #fff; border: 1px solid #ff968e; border-radius: 99px;
  padding: 11px 26px; font: 700 13px var(--sans); letter-spacing: .14em;
  background: var(--bad);
  box-shadow: 0 0 0 3px rgba(245,166,35,.35);
}
#btn-estop:hover { border-color: #ffb3ac;
  background: var(--bad);
  box-shadow: 0 0 0 3px rgba(245,166,35,.5); }
#btn-estop.resume { border-color: #5fd57b;
  background: var(--ok);
  box-shadow: none; }
#btn-estop.resume:hover { background: var(--ok); filter: brightness(1.08); }

/* ============ floating control dock + framed cards (site tone) ============ */
.frame { position: relative; border: 1px solid var(--line2); border-radius: var(--r-lg);
  background: var(--panel2);
  box-shadow: none; }
.frame::before { display: none; content: ""; position: absolute; inset: 6px; pointer-events: none; opacity: .5;
  background:
    linear-gradient(var(--accent),var(--accent)) top left/13px 1.5px no-repeat,
    linear-gradient(var(--accent),var(--accent)) top left/1.5px 13px no-repeat,
    linear-gradient(var(--accent),var(--accent)) top right/13px 1.5px no-repeat,
    linear-gradient(var(--accent),var(--accent)) top right/1.5px 13px no-repeat,
    linear-gradient(var(--accent),var(--accent)) bottom left/13px 1.5px no-repeat,
    linear-gradient(var(--accent),var(--accent)) bottom left/1.5px 13px no-repeat,
    linear-gradient(var(--accent),var(--accent)) bottom right/13px 1.5px no-repeat,
    linear-gradient(var(--accent),var(--accent)) bottom right/1.5px 13px no-repeat; }

#dock { position: absolute; top: 14px; left: 14px; width: 196px; z-index: 6;
  padding: 13px 12px 12px; display: flex; flex-direction: column; gap: 12px; }
.dock-sec { display: flex; flex-direction: column; gap: 7px; }
.dock-lbl { font: 600 10px var(--mono); letter-spacing: .2em; color: var(--faint); padding-left: 2px; }
.dock-row { display: flex; flex-direction: column; gap: 4px; }   /* layers-tree: one row each */
.tbtn { flex: none; display: flex; flex-direction: row; align-items: center; gap: 9px;
  padding: 7px 10px; color: var(--fg2); border-radius: 7px; text-align: left; }
.tbtn svg { width: 18px; height: 18px; flex: none; stroke: currentColor; fill: none; stroke-width: 1.7;
  stroke-linecap: round; stroke-linejoin: round; }
.tbtn span { font: 600 11px var(--sans); letter-spacing: .03em; flex: 1; }
.tbtn:hover { background: var(--panel3); color: var(--fg); }
.tbtn.on { color: var(--accent);
  background: var(--accent-soft);
  box-shadow: inset 2px 0 0 var(--accent); }            /* selected-layer row (RViz/Rerun) */
.tbtn.amber.on { color: var(--amber);
  background: var(--amber-soft);
  box-shadow: inset 2px 0 0 var(--amber); }
.tbtn.home { justify-content: flex-start; padding: 8px 10px; }
.tbtn.home span { font-size: 11px; letter-spacing: .1em; }

.carry-pop { position: absolute; left: calc(100% + 8px); bottom: 6px; width: 158px; z-index: 7;
  padding: 12px; border: 1px solid rgba(240,177,61,.4); border-radius: var(--r-lg);
  background: var(--panel2);
  box-shadow: 0 8px 24px -16px rgba(0,0,0,.55); }
.cp-head { font: 600 8.5px var(--mono); letter-spacing: .16em; color: var(--amber); margin-bottom: 10px; }
.cp-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 7px; }
.cp-grid button { padding: 9px 0; font: 600 11px var(--mono); border-radius: 8px; }
.cp-grid button:hover { border-color: #f3c468; color: var(--amber);
  box-shadow: 0 0 0 1px rgba(240,177,61,.2); }
.cp-axis { grid-column: 1/-1; font: 500 8.5px var(--mono); color: var(--dim);
  letter-spacing: .08em; margin-top: 3px; }

/* ============ layout ============ */
#main { display: flex; flex: 1; min-height: 0; }
#viewport { flex: 1; position: relative; min-width: 0; overflow: hidden; isolation: isolate; transition: box-shadow .45s var(--ease);
  background: var(--bg2); }
#viewport::before { content: ""; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background:
    linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px),
    linear-gradient(var(--grid2) 1px,transparent 1px),linear-gradient(90deg,var(--grid2) 1px,transparent 1px);
  background-size: 30px 30px,30px 30px,150px 150px,150px 150px;
  -webkit-mask-image: radial-gradient(120% 95% at 58% 0%,#000 30%,transparent 88%);
  mask-image: radial-gradient(120% 95% at 58% 0%,#000 30%,transparent 88%); }
/* decorative accent bloom removed - flat near-black viewport */
/* dominant state cue — viewport edge tint by mode (Franka status-ring lesson) */
#viewport.cue-live { box-shadow: inset 0 0 0 1px rgba(56,160,255,.16); }
#viewport.cue-observe { box-shadow: inset 0 0 0 2px rgba(56,160,255,.35); }
#viewport.cue-dampened { box-shadow: inset 0 0 0 2px rgba(240,177,61,.5),
  inset 0 0 130px -24px rgba(240,177,61,.30); }
#viewport.cue-estop { box-shadow: inset 0 0 0 2px rgba(244,86,76,.62),
  inset 0 0 130px -18px rgba(244,86,76,.42); }
#viewport canvas { display: block; position: relative; z-index: 1; }
#overlay-hint { position: absolute; left: 50%; bottom: 60px; transform: translateX(-50%);
  z-index: 4; display: none; max-width: 72%; padding: 5px 13px; border-radius: 99px;
  background: rgba(10,12,16,.6); border: 1px solid var(--line2); backdrop-filter: blur(6px);
  font: 600 10.5px var(--mono); letter-spacing: .03em; color: var(--fg2);
  pointer-events: none; text-align: center; }
/* overlay layer-tree popover (eye + opacity per layer) */
.dock-lbl-btn { background: none; border: none; box-shadow: none; padding: 0 0 0 2px;
  text-align: left; width: 100%; cursor: pointer; transition: color .15s; }
.dock-lbl-btn:hover { color: var(--accent); background: none; box-shadow: none; border: none; }
.lbl-caret { opacity: .55; }
.layers-pop { position: absolute; left: calc(100% + 8px); top: 6px; width: 190px; z-index: 7;
  padding: 11px 12px; border: 1px solid var(--line2); border-radius: var(--r-lg);
  background: var(--panel2);
  box-shadow: 0 8px 24px -16px rgba(0,0,0,.55); }
.layers-pop .cp-head { font: 700 9px var(--mono); letter-spacing: .16em; color: var(--faint); margin-bottom: 9px; }
.lyr { display: flex; align-items: center; gap: 8px; padding: 5px 0; }
.lyr .eye { width: 22px; height: 22px; padding: 0; flex: none; border-radius: 6px; font-size: 9px;
  color: var(--faint); background: var(--panel); border: 1px solid var(--line2); box-shadow: none; }
.lyr.on .eye { color: var(--accent-ink); border-color: var(--accent-lt);
  background: var(--accent); }
.lyr span { flex: 1; font: 600 10.5px var(--sans); letter-spacing: .02em; color: var(--fg2); }
.lyr .opa { width: 62px; flex: none; accent-color: var(--accent); }
.presets { display: grid; grid-template-columns: 1fr 1fr; gap: 5px; margin-bottom: 11px;
  padding-bottom: 10px; border-bottom: 1px solid var(--line-soft); }
.presets button { padding: 6px; font: 700 9.5px var(--mono); letter-spacing: .06em; border-radius: 6px; }
.presets.saved { margin: -5px 0 9px; padding-bottom: 9px; }
.saved-chip { display: flex; align-items: stretch; border: 1px solid var(--line2);
  border-radius: 6px; overflow: hidden; }
.saved-chip .chip-apply { flex: 1; min-width: 0; padding: 6px 6px 6px 8px;
  font: 700 9.5px var(--mono); letter-spacing: .04em; text-align: left;
  border: 0; border-radius: 0; background: var(--panel);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.saved-chip .chip-apply:hover { background: var(--panel2); color: var(--accent); }
.saved-chip .del { flex: 0 0 auto; width: 18px; padding: 0;
  border: 0; border-left: 1px solid var(--line2); border-radius: 0;
  background: var(--panel); font: 400 13px var(--sans); line-height: 1; color: var(--faint); }
.saved-chip .del:hover { color: var(--bad); background: rgba(255,255,255,.08); }
.preset-save { display: flex; gap: 5px; margin-bottom: 11px; }
.preset-save input { flex: 1; min-width: 0; padding: 5px 8px; font: 600 10px var(--sans);
  color: var(--fg2); background: var(--panel); border: 1px solid var(--line2); border-radius: 6px; }
.preset-save input::placeholder { color: var(--faint); }
.preset-save input:focus { outline: none; border-color: var(--accent-lt); }
.preset-save button { flex: none; width: 28px; padding: 5px 0; font: 700 14px var(--sans); line-height: 1; border-radius: 6px; }
/* keyboard shortcuts: topbar ? button + legend modal */
#btn-keys { width: 32px; height: 28px; padding: 0; margin-right: 8px; font: 700 13px var(--sans);
  color: var(--dim); background: var(--panel); border: 1px solid var(--line2); border-radius: 8px; }
#btn-keys:hover { color: var(--accent); border-color: var(--accent-lt); }
#keys-legend { position: fixed; inset: 0; z-index: 50; display: flex; align-items: center; justify-content: center;
  background: rgba(4,5,7,.55); backdrop-filter: blur(3px); }
.keys-card { width: min(440px, 92vw); padding-bottom: 6px; border: 1px solid var(--line2);
  border-radius: var(--r-lg); background: var(--panel2);
  box-shadow: 0 12px 32px -18px rgba(0,0,0,.6); }
.keys-head { display: flex; align-items: center; justify-content: space-between;
  padding: 12px 16px; border-bottom: 1px solid var(--line-soft);
  font: 700 10px var(--mono); letter-spacing: .18em; color: var(--faint); }
.keys-head button { width: 24px; padding: 0; font-size: 13px; color: var(--dim);
  background: none; border: 0; box-shadow: none; }
.keys-head button:hover { color: var(--bad); }
.keys-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 9px 18px; padding: 14px 16px;
  font: 500 12px var(--sans); color: var(--fg2); }
.keys-grid > div { display: flex; align-items: center; gap: 8px; }
.keys-grid kbd { flex: none; min-width: 16px; padding: 2px 6px; text-align: center;
  font: 700 10px var(--mono); color: var(--fg); background: var(--panel);
  border: 1px solid var(--line2); border-bottom-width: 2px; border-radius: 5px; }
/* move-preview approval bar (show intent before action) */
#approve-bar { position: absolute; top: 54px; left: 50%; transform: translateX(-50%); z-index: 9;
  display: none; align-items: center; gap: 12px; padding: 7px 9px 7px 16px; border-radius: 99px;
  background: rgba(14,16,20,.84); border: 1px solid rgba(63,196,99,.45);
  box-shadow: 0 8px 24px -16px rgba(0,0,0,.55); }
#approve-bar span { font: 600 12px var(--sans); color: var(--fg2); white-space: nowrap; }
#approve-bar button { padding: 6px 14px; font: 700 11px var(--sans); letter-spacing: .04em; }
#approve-go { color: var(--accent-ink); border-color: var(--ok);
  background: var(--ok); }
#viewport .overlay {
  position: absolute; left: 12px; bottom: 10px; z-index: 4; color: var(--dim);
  font: 11px var(--mono); pointer-events: none; max-width: 60%;
}
#banner {
  position: absolute; top: 14px; left: 50%; transform: translateX(-50%); z-index: 8;
  padding: 8px 20px; border-radius: 99px; font-size: 12.5px;
  font-weight: 600; display: none; max-width: 86%;
  box-shadow: 0 8px 24px -16px rgba(0,0,0,.5);
}
#banner.dampened { display: block; background: var(--amber-soft);
  border: 1px solid rgba(240,177,61,.45); color: var(--amber); }
#banner.preview { display: block; background: var(--accent-soft);
  border: 1px solid rgba(56,160,255,.45); color: var(--accent); }
#banner.observe { display: block; background: var(--accent-soft);
  border: 1px solid rgba(56,160,255,.45); color: var(--accent); }

/* (mirror/carry active state now uses .tbtn.on in the dock) */

/* ============ camera PiP (rendered robot camera) ============ */
#cam-pip {
  position: absolute; right: 14px; bottom: 14px; width: 256px; z-index: 5;
  background: #0a0c0e; border: 1px solid var(--line2); border-radius: var(--r-lg);
  overflow: hidden; box-shadow: 0 8px 24px -16px rgba(0,0,0,.55); display: none;
}
#cam-img { display: block; width: 100%; height: auto; background: #000; }
#cam-bar {
  display: flex; align-items: center; flex-wrap: wrap; gap: 6px 8px;
  padding: 6px 9px; border-top: 1px solid var(--line-soft);
  font: 700 9.5px var(--mono); letter-spacing: .14em; color: var(--dim);
  cursor: move;
}
#cam-bar button, #cam-bar select { cursor: pointer; }
#cam-pip.show { display: block; }
#cam-pip.dragging { box-shadow: 0 10px 28px -16px rgba(0,0,0,.6); opacity: .96; }
/* true ego + exo split: the work camera docks as a right pane, the twin canvas takes the rest */
#viewport.split #cam-pip { right: 0; top: 0; left: auto; bottom: auto;
  width: 40%; height: 100%; border-radius: 0; border: 0;
  border-left: 1px solid var(--line2); box-shadow: none; }
#viewport.split #cam-pip.show { display: flex; flex-direction: column; }
#viewport.split #cam-stage { flex: 1 1 auto; min-height: 0;
  display: flex; align-items: center; justify-content: center; }
#viewport.split #cam-img { width: 100%; height: 100%; object-fit: contain; }
#viewport.split #cam-bar { flex: 0 0 auto; cursor: default; }
#cam-expand.on { color: var(--accent); border-color: rgba(56,160,255,.5); background: var(--accent-soft); }
#cam-expand { padding: 4px 8px; font-size: 12px; line-height: 1; }
#cam-bar select {
  flex: 1 1 120px; min-width: 110px; background: var(--panel2); color: var(--fg);
  border: 1px solid var(--line); border-radius: 5px; padding: 3px 6px;
  font: 500 11px "Inter", sans-serif;
}
#cam-smart { border-color: rgba(56,160,255,.5); color: var(--accent); }
#cam-smart:hover { background: var(--accent-soft); }
#btn-cam.on { border-color: rgba(56,160,255,.55); color: var(--accent);
  background: var(--accent-soft); }
#cam-stage { position: relative; line-height: 0; }
#cam-mark { position: absolute; width: 18px; height: 18px; margin: -9px 0 0 -9px;
  border: 2px solid #38e0ff; border-radius: 50%;
  box-shadow: 0 0 9px #38e0ff, inset 0 0 4px #38e0ff;
  display: none; pointer-events: none; }
#cam-bar button { padding: 5px 9px; font: 600 10px var(--sans); letter-spacing: .04em; border-radius: 8px; }
#cam-detect { border-color: rgba(56,160,255,.5); color: var(--accent); }
#cam-detect:hover { background: var(--accent-soft); }
#cam-pick { border-color: rgba(63,196,99,.5); color: var(--ok); }
#cam-pick:hover { background: var(--ok-soft); }
#cam-servo { border-color: rgba(240,177,61,.5); color: var(--amber); }
#cam-servo:hover { background: var(--amber-soft); }
.vsep { width: 1px; height: 20px; background: var(--line2); margin: 0 2px; flex: none; }
#cam-info { padding: 5px 9px; font: 600 10px var(--mono); color: var(--fg2);
  border-top: 1px solid var(--line-soft); white-space: nowrap;
  overflow: hidden; text-overflow: ellipsis; }

/* ============ right panel ============ */
#panel {
  width: 424px; background: var(--panel);
  border-left: 1px solid var(--line);
  display: flex; flex-direction: column; min-height: 0;
}
#tabs { display: flex; border-bottom: 1px solid var(--line); }
#tabs div {
  flex: 1; text-align: center; padding: 12px 0 10px;
  font-size: 10.5px; font-weight: 700; letter-spacing: .12em;
  color: var(--dim); cursor: pointer;
  border-bottom: 2px solid transparent;
  user-select: none; transition: color .15s;
}
#tabs div:hover { color: var(--fg2); }
#tabs div.active { color: var(--fg); border-bottom-color: var(--accent); }

#joints { flex: 1; overflow-y: auto; padding: 4px 12px 12px; }
#joints::-webkit-scrollbar { width: 8px; }
#joints::-webkit-scrollbar-thumb { background: var(--raise);
  border-radius: 4px; }

.panel-head {
  display: flex; align-items: baseline; justify-content: space-between;
  padding: 12px 12px 8px;
  font-size: 10px; font-weight: 700; letter-spacing: .14em;
  color: var(--dim);
}
.panel-head small { font: 500 10px var(--mono); letter-spacing: 0;
  text-transform: none; }

/* joint rows — slider thumb = command (amber), fill = actual (azure) */
.jrow {
  display: grid; grid-template-columns: 92px 14px 28px 1fr 28px 14px 76px;
  gap: 6px; align-items: center;
  height: 48px; padding: 0 4px;
  border-bottom: 1px solid var(--line-soft);
  transition: background .12s;
}
.jlim {
  height: 24px; width: 20px; padding: 0; font-size: 12px;
  border: none; background: transparent; color: var(--dim);
  border-radius: 5px; display: flex; align-items: center;
  justify-content: center;
}
.jlim:hover:not(:disabled) { color: var(--amber);
  background: var(--amber-soft); border: none; }
.jrow:last-child { border-bottom: none; }
.jrow:hover { background: rgba(255,255,255,.02); }
.jname { font-size: 10px; color: var(--dim);
  font-family: var(--mono); line-height: 1.3;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.jname b { display: block; color: var(--fg); font-size: 11.5px;
  font-family: "Inter", sans-serif; font-weight: 600;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.jbtn {
  height: 29px; width: 29px; padding: 0;
  font-size: 15px; border-radius: 7px;
  touch-action: none; user-select: none;
  display: flex; align-items: center; justify-content: center;
}
.jbtn:active:not(:disabled) { background: var(--accent); color: #03101e;
  border-color: var(--accent); }

.jbar {
  position: relative; height: 18px; cursor: pointer;
  touch-action: none; user-select: none;
}
.jbar::before {
  content: ""; position: absolute; left: 0; right: 0;
  top: 6px; height: 6px; border-radius: 99px;
  background: var(--bg); border: 1px solid var(--line-soft);
}
.jfill {
  position: absolute; left: 0; top: 6px; height: 6px;
  background: var(--accent);
  border-radius: 99px; pointer-events: none;
}
.jthumb {
  position: absolute; top: 50%; transform: translate(-50%, -50%);
  width: 15px; height: 15px; border-radius: 50%;
  background: var(--amber); border: 2px solid var(--bg);
  box-shadow: 0 0 0 1px rgba(240,177,61,.5), 0 1px 4px rgba(0,0,0,.5);
  pointer-events: none; transition: box-shadow .15s;
}
.jbar:hover .jthumb { box-shadow: 0 0 0 3px rgba(240,177,61,.28),
  0 1px 4px rgba(0,0,0,.5); }
.jbar.disabled { cursor: not-allowed; opacity: .45; }

.jval {
  text-align: right; font-family: var(--mono); font-size: 12.5px;
  font-weight: 600; white-space: nowrap; overflow: hidden;
}
.jval small { display: block; color: var(--dim); font-size: 9px;
  font-weight: 400; white-space: nowrap; }
.temp-ok { color: var(--dim); }
.temp-warn { color: var(--amber); }
.temp-bad { color: var(--bad); font-weight: 700; }

.panel-note { padding: 10px 12px; margin: 10px 2px;
  color: var(--amber); font-size: 12px; line-height: 1.5;
  background: var(--amber-soft); border: 1px solid rgba(240,177,61,.3);
  border-radius: var(--r); }

#footer { padding: 9px 14px; border-top: 1px solid var(--line);
  font: 10px var(--mono); color: var(--dim);
  display: flex; gap: 14px; letter-spacing: .03em; }

/* ============ sequencer ============ */
.seq-controls { display: flex; gap: 7px; padding: 10px 2px;
  flex-wrap: wrap; border-bottom: 1px solid var(--line-soft); }
.seq-controls button { font-size: 11px; padding: 7px 11px; }
.seq-controls select {
  background: var(--panel2); color: var(--fg);
  border: 1px solid var(--line); border-radius: var(--r);
  padding: 6px 8px; font: 500 12px "Inter", sans-serif; min-width: 110px;
}
#sq-add { border-color: rgba(56,160,255,.5); color: var(--accent); }
#sq-add:hover { background: var(--accent-soft); }
#sq-play.playing { background: #2c9e47; border-color: #5fd57b; color: #fff; }
.seqrow {
  display: flex; align-items: center; gap: 8px; padding: 9px 10px;
  border-bottom: 1px solid var(--line-soft); font-size: 13px;
  border-left: 3px solid transparent; transition: background .12s;
}
.seqrow:hover { background: rgba(255,255,255,.02); }
.seqrow.active { background: var(--accent-soft);
  border-left-color: var(--accent); }
.seqrow .nm { flex: 1; font: 500 12.5px var(--mono); }
.seqrow button { padding: 4px 10px; font-size: 12px; }
.seq-hint, .seq-empty { color: var(--dim); font-size: 11.5px;
  padding: 12px 8px; line-height: 1.6; }
.seq-empty { text-align: center; padding: 28px 18px; }
.seq-empty b { color: var(--fg2); }

/* ============ cartesian jog + tool ============ */
.cart-row {
  display: grid; grid-template-columns: 26px 30px 1fr 30px;
  gap: 8px; align-items: center; height: 42px; padding: 0 4px;
  border-bottom: 1px solid var(--line-soft);
}
.cart-row b { font: 700 12px var(--mono); color: var(--fg2);
  text-align: center; }
.cart-row .ax-x { color: var(--x); }
.cart-row .ax-y { color: var(--y); }
.cart-row .ax-z { color: var(--z); }
.cart-val { font: 600 13px var(--mono); text-align: center;
  color: var(--fg); }
.cart-foot {
  display: flex; align-items: center; gap: 8px; padding: 11px 4px;
  border-bottom: 1px solid var(--line-soft);
}
.cart-foot label { font: 700 9.5px var(--mono); color: var(--dim);
  letter-spacing: .1em; }
.cart-foot select {
  background: var(--panel2); color: var(--fg);
  border: 1px solid var(--line); border-radius: var(--r);
  padding: 5px 7px; font: 500 11.5px "Inter", sans-serif; min-width: 70px;
}
.cart-foot #tool-sel { flex: 1; min-width: 90px; }
.cart-foot button { padding: 5px 10px; font-size: 12px; }

/* ============ program tab ============ */
.nl-row { display: flex; gap: 7px; padding: 10px 2px 2px; align-items: center; }
.nl-row input {
  flex: 1; min-width: 0; background: var(--panel2); color: var(--fg);
  border: 1px solid var(--line); border-radius: var(--r);
  padding: 8px 11px; font: 500 12.5px "Inter", sans-serif;
}
.nl-row input::placeholder { color: var(--dim); }
.nl-row input:focus-visible { outline: none; border-color: var(--accent-deep); }
#pg-gen { border-color: rgba(56,160,255,.5); color: var(--accent);
  white-space: nowrap; font-weight: 700; }
#pg-gen:hover { background: var(--accent-soft); border-color: var(--accent); }
.prog-controls { display: flex; gap: 7px; padding: 10px 2px;
  align-items: center; flex-wrap: wrap;
  border-bottom: 1px solid var(--line-soft); }
.prog-controls button { font-size: 11px; padding: 7px 11px; }
.prog-controls select {
  background: var(--panel2); color: var(--fg); flex: 1;
  border: 1px solid var(--line); border-radius: var(--r);
  padding: 6px 8px; font: 500 12px "Inter", sans-serif; min-width: 90px;
}
#pg-run { border-color: rgba(56,160,255,.5); color: var(--accent); }
#pg-run:hover { background: var(--accent-soft); }
#pg-run.playing { background: #2c9e47; border-color: #5fd57b; color: #fff; }
#pg-rec { border-color: rgba(244,86,76,.45); color: var(--bad); }
#pg-rec:hover { background: var(--bad-soft); border-color: var(--bad); }
#pg-rec.recording { background: var(--bad); border-color: #ff968e;
  color: #fff; animation: rec-pulse 1.2s ease-in-out infinite; }
@keyframes rec-pulse {
  50% { box-shadow: 0 0 0 4px var(--bad-soft); }
}
#chip-rec { animation: rec-pulse 1.2s ease-in-out infinite; }
.prog-state { font: 500 10.5px var(--mono); color: var(--dim);
  margin-left: auto; max-width: 46%; overflow: hidden;
  text-overflow: ellipsis; white-space: nowrap; }
.prog-state.on { color: var(--ok); }
.prog-state.warn { color: var(--amber); }
#pg-code {
  width: 100%; height: 230px; margin: 10px 0 0; resize: vertical;
  background: #0a0c0e; color: var(--fg);
  border: 1px solid var(--line); border-radius: var(--r);
  padding: 10px 12px; font: 12px/1.55 var(--mono); tab-size: 4;
  white-space: pre; overflow-x: auto;
}
#pg-code:focus-visible { outline: 1px solid var(--accent-deep); }
#pg-code[readonly] { opacity: .6; }
#pg-log {
  margin-top: 10px; padding: 9px 11px; max-height: 150px; overflow-y: auto;
  background: #0a0c0e; border: 1px solid var(--line-soft);
  border-radius: var(--r); font: 10.5px/1.6 var(--mono); color: var(--fg2);
  white-space: pre-wrap;
}

/* browser <-> server connection lost: dim + freeze so stale chips don't read as live */
body.offline #topbar .chip { opacity: .35; filter: grayscale(1); }
body.offline #panel { opacity: .5; pointer-events: none; }

/* program-editor rbt autocomplete dropdown */
#pg-ac { position: fixed; z-index: 50; min-width: 210px; max-height: 188px;
  overflow-y: auto; background: var(--panel, #15171b);
  border: 1px solid var(--line, #2a2e37); border-radius: 8px;
  font: 12px/1.5 var(--mono, ui-monospace, monospace);
  box-shadow: 0 8px 22px rgba(0, 0, 0, .45); }
#pg-ac .ac-item { padding: 4px 11px; cursor: pointer; color: var(--fg2, #aab2bd); white-space: nowrap; }
#pg-ac .ac-item.sel, #pg-ac .ac-item:hover { background: var(--accent2, #1f5d99); color: #fff; }


/* ============================================================
   APPLICATION SHELL  (structural rework)
   menubar / toolbar / main(left DISPLAYS | center 3D | right PROPERTIES) / timeline
   later rules override the legacy floating-dock layout above.
   ============================================================ */
html, body { height: 100%; }
body { display: block; overflow: hidden; }
#app { height: 100vh; display: grid; grid-template-rows: auto auto 1fr auto; background: var(--bg); }

/* ---- menu bar ---- */
#menubar { display: flex; align-items: center; gap: 4px; height: 42px; padding: 0 12px;
  white-space: nowrap; min-width: 0; overflow: hidden; background: var(--panel); border-bottom: 1px solid var(--line); }
#menubar #logo { margin-right: 16px; }
#menus { display: flex; gap: 1px; }
#menus .menu { font: 500 12px var(--sans); color: var(--fg2); padding: 5px 9px; border-radius: 5px; cursor: default; }
#menus .menu:hover { background: var(--panel3); color: var(--fg); }
.mb-sp { flex: 1; }
#menubar .status-cluster { position: static; }

/* ---- toolbar ---- */
#toolbar { position: relative; display: flex; align-items: center; gap: 5px; height: 40px;
  padding: 0 10px; background: var(--bg); border-bottom: 1px solid var(--line); }
#toolbar .tbtn { flex: none; width: auto; flex-direction: row; gap: 7px; padding: 6px 11px; border-radius: 6px; }
#toolbar .tbtn span { flex: none; font-size: 11px; letter-spacing: .06em; }
#toolbar .tbtn svg { width: 15px; height: 15px; }
.tbar-div { width: 1px; height: 18px; background: var(--line); margin: 0 4px; flex: none; }
.tbar-sp { flex: 1; }
.tbar-hint { font: 500 11px var(--mono); color: var(--faint); overflow: hidden; text-overflow: ellipsis; }
#toolbar .carry-pop { left: auto; right: 14px; top: calc(100% + 6px); bottom: auto; }

/* ---- main 3-pane ---- */
#main { display: grid; grid-template-columns: 246px 1fr 304px; min-height: 0; }
.pane { position: relative; display: flex; flex-direction: column; min-height: 0; min-width: 0; background: var(--panel); }
.pane.center { background: var(--bg2); overflow: hidden; }
#left-pane { border-right: 1px solid var(--line); }
#panel { width: auto; border-left: 1px solid var(--line); }
.pane-hd { display: flex; align-items: center; justify-content: space-between; flex: none;
  height: 28px; padding: 0 11px; background: var(--panel); border-bottom: 1px solid var(--line);
  font: 600 10px var(--mono); letter-spacing: .16em; color: var(--faint); }
.pane-hd .hd-sub { font: 500 10px var(--mono); letter-spacing: .04em; color: var(--faint); margin-left: 12px; text-transform: none; }
.pane-body { flex: 1; overflow-y: auto; min-height: 0; }

/* ---- left dock un-floated into the DISPLAYS pane ---- */
#dock { position: static; top: auto; left: auto; width: auto; z-index: auto; padding: 8px 8px 14px; gap: 10px; }
#left-pane .layers-pop { left: calc(100% + 8px); top: 8px; }

/* ---- center viewport fills below the header ---- */
#center-pane #viewport { flex: 1; }

/* ---- timeline / status ---- */
#timeline { background: var(--panel); border-top: 1px solid var(--line); }
.tl-hd { display: flex; align-items: center; gap: 14px; height: 30px; padding: 0 12px;
  font: 500 11px var(--mono); color: var(--faint); border-bottom: 1px solid var(--line-soft); }
.tl-hd .tl-ttl { font-weight: 600; letter-spacing: .16em; }
.tl-hd #foot-mode { color: var(--fg2); }
.tl-hd .tl-sp { flex: 1; }
.tl-body { display: grid; grid-template-columns: 110px 1fr; height: 60px; }
.tl-streams { border-right: 1px solid var(--line-soft); padding: 5px 0; }
.tl-streams .s { font: 500 11px var(--mono); color: var(--fg2); padding: 3px 12px; }
.tl-track { position: relative; padding: 5px 10px; }
.tl-track .lane { height: 12px; margin: 4px 0; border-radius: 3px;
  background: var(--bg2) repeating-linear-gradient(90deg, var(--line) 0 1px, transparent 1px 9px); box-shadow: inset 0 0 0 1px var(--line-soft); }
.tl-track .ph { position: absolute; top: 0; bottom: 0; left: 62%; width: 1px; background: var(--accent); }

/* offline dimming (re-scoped from #topbar to the menubar) */
body.offline #menubar .chip { opacity: .35; filter: grayscale(1); }


/* ============================================================
   ISAAC-SIM STRUCTURE  (left tool rail + right Stage/Property dock)
   ============================================================ */
#app { grid-template-rows: auto 1fr auto; }              /* menubar / main / timeline */
#main { grid-template-columns: 60px 1fr 384px; grid-template-rows: minmax(0, 1fr); min-height: 0; }
#toolbar { display: none; }                              /* legacy horizontal toolbar removed */

/* left vertical Main Toolbar (Isaac) */
#toolrail { position: relative; display: flex; flex-direction: column; align-items: center; gap: 3px;
  padding: 8px 0; background: var(--panel); border-right: 1px solid var(--line); }
.rail-tool { width: 44px; height: 44px; display: flex; align-items: center; justify-content: center;
  border: 1px solid transparent; border-radius: 7px; color: #AFB5BF; background: none; position: relative; }
.rail-tool svg { width: 24px; height: 24px; stroke: currentColor; fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.rail-tool:hover { background: var(--panel3); color: var(--fg); }
.rail-tool.act { background: var(--accent-soft); color: var(--accent); border-color: rgba(59,130,246,.35); }
.rail-tool.on { background: var(--accent-soft); color: var(--accent); }
.rail-tool.amber.on { background: var(--amber-soft); color: var(--amber); }
.rail-tool.tri::after { content: ""; position: absolute; right: 3px; bottom: 3px;
  border: 3px solid transparent; border-right-color: var(--faint); border-bottom-color: var(--faint); }
.rail-div { width: 22px; height: 1px; background: var(--line); margin: 4px 0; flex: none; }
.rail-sp { flex: none; width: 22px; height: 1px; background: var(--line); margin: 8px 0; }
#toolrail .carry-pop { left: calc(100% + 6px); top: 366px; right: auto; bottom: auto; }

/* right dock: STAGE (top) over PROPERTY (bottom) */
#rightdock { display: flex; flex-direction: column; min-height: 0; min-width: 0; border-left: 1px solid var(--line); }
#stage-pane { flex: 0 0 40%; border-bottom: 1px solid var(--line); min-height: 0; }
#rightdock #panel { flex: 1; width: auto; border-left: 0; min-height: 0; }

/* tabbed pane headers (Stage/Layer, Property/Raw, Timeline/Console) */
.pane-hd.tabset { gap: 0; padding: 0 6px; }
.pane-hd .pt, .tl-hd .pt { font: 600 10px var(--mono); letter-spacing: .12em; color: var(--faint);
  padding: 9px; cursor: default; }
.pane-hd .pt.act, .tl-hd .pt.act { color: var(--accent); box-shadow: inset 0 -2px 0 var(--accent); }
.pane-hd .hd-tools { margin-left: auto; font: 500 10px var(--mono); color: var(--faint); }

/* Stage tree Type column */
.tbtn .ty { margin-left: auto; flex: none; font: 500 9px var(--mono); letter-spacing: .04em;
  color: var(--dim); font-style: normal; }

/* timeline header keeps its meta items after the tabs */
.tl-hd .tl-foot { margin-left: 10px; }


/* ============================================================
   ISAAC DEPTH: nav gizmo, stage hierarchy, frames, RAW, console, content
   ============================================================ */
/* viewport toolbar view buttons + render badge */
.hd-tools { display: flex; align-items: center; gap: 4px; }
.hd-tools .vbtn { font: 600 10px var(--mono); letter-spacing: .04em; color: var(--fg2);
  padding: 6px 11px; border: 1px solid var(--line); border-radius: 5px; background: var(--panel); }
.hd-tools .vbtn:hover { color: var(--fg); border-color: var(--line2); }
.hd-tools .vbtn.act { color: var(--accent); border-color: rgba(59,130,246,.4); background: var(--accent-soft); }
.hd-tools .hd-render { font: 600 9px var(--mono); color: var(--faint); margin-left: 4px; padding: 3px 6px;
  border: 1px solid var(--line); border-radius: 4px; }

/* viewport nav gizmo (Omniverse-style axis widget) */
#nav-gizmo { position: absolute; top: 12px; right: 14px; z-index: 6; width: 68px; height: 68px;
  border-radius: 50%; background: rgba(14,16,19,.55); border: 1px solid var(--line); }
#nav-gizmo .gz { position: absolute; width: 21px; height: 21px; border-radius: 50%; border: 1px solid var(--line2);
  font: 700 10px var(--mono); color: var(--accent-ink); display: flex; align-items: center; justify-content: center; padding: 0; }
#nav-gizmo .gz-x { top: 23px; right: 3px;  background: var(--x); }
#nav-gizmo .gz-y { left: 3px;  top: 23px;  background: var(--y); }
#nav-gizmo .gz-z { top: 3px;   left: 23px; background: var(--z); }
#nav-gizmo .gz-c { top: 24px;  left: 24px; width: 19px; height: 19px; background: var(--panel2); color: var(--fg2); border-color: var(--line2); }
#nav-gizmo .gz:hover { filter: brightness(1.18); }

/* Stage hierarchy tree */
.stage-tree { padding: 4px 0 6px; border-bottom: 1px solid var(--line-soft); margin-bottom: 4px; }
.snode { display: flex; align-items: center; gap: 6px; padding: 4px 10px; font-size: 12px; color: var(--fg); cursor: default; white-space: nowrap; }
.snode:hover { background: var(--panel2); }
.snode.sel { background: var(--accent-soft); box-shadow: inset 2px 0 0 var(--accent); }
.snode .tw { width: 16px; flex: none; font-size: 11px; color: var(--dim); text-align: center; cursor: pointer; }
.snode .eye { width: 16px; height: 16px; flex: none; border: 1px solid var(--line2); border-radius: 4px; background: none; padding: 0; }
.snode .eye.on { background: var(--accent); border-color: var(--accent); }
.snode .nm { flex: 1; overflow: hidden; text-overflow: ellipsis; }
.snode .ty { flex: none; font: 500 9.5px var(--mono); color: var(--dim); }
.snode.lv1 { padding-left: 20px; } .snode.lv2 { padding-left: 38px; color: var(--fg2); }

/* coordinate frames list */
.frames-list { padding: 8px 4px; }
.fr { display: flex; align-items: center; gap: 8px; padding: 5px 10px; font: 500 12px var(--mono); color: var(--fg2); }
.fr .ax { width: 8px; height: 8px; border-radius: 2px; flex: none; }
.fr em { margin-left: auto; font: 500 9px var(--mono); color: var(--faint); font-style: normal; }

/* RAW readout */
.raw { margin: 0; padding: 12px 14px; font: 11.5px/1.5 var(--mono); color: var(--fg2); white-space: pre; }

/* CONSOLE log */
.console { padding: 8px 12px; height: 100%; overflow: auto; font: 11px/1.55 var(--mono); }
.console .cl { color: var(--fg2); }
.console .cl.ok { color: var(--ok); }
.console .cl.bad { color: var(--bad); }

/* CONTENT asset browser */
.content-grid { display: flex; flex-wrap: wrap; gap: 8px; padding: 10px 12px; align-content: flex-start; overflow: auto; height: 100%; }
.asset { width: 78px; display: flex; flex-direction: column; gap: 5px; padding: 6px; border: 1px solid var(--line); border-radius: 7px; background: var(--panel); cursor: pointer; }
.asset:hover { border-color: var(--accent-lt); }
.asset .thumb { height: 42px; border-radius: 4px; background: repeating-linear-gradient(135deg, var(--panel2) 0 6px, var(--panel3) 6px 12px); }
.asset .al { font: 600 10px var(--sans); color: var(--fg2); text-align: center; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* timeline content wrapper + per-tab heights */
.tl-wrap { min-height: 0; }
#timeline .tabpane { height: 150px; }
.tl-body { height: 100%; }


/* editable joint angle + resize handles */
.ang.editable { cursor: text; border-radius: 3px; padding: 0 3px; }
.ang.editable:hover { background: var(--accent-soft); color: var(--accent); }
.ang-edit { position: fixed; z-index: 60; height: 22px; padding: 0 6px; font: 600 12px var(--mono);
  color: var(--fg); background: var(--panel2); border: 1px solid var(--accent); border-radius: 4px; outline: none; }
#rightdock { position: relative; }
.rsz { position: absolute; z-index: 8; }
.rsz-v { top: 0; bottom: 0; left: -3px; width: 6px; cursor: col-resize; }
.rsz-h { left: 0; right: 0; bottom: -3px; height: 6px; cursor: row-resize; }
.rsz:hover { background: var(--accent); opacity: .5; }


/* menu dropdowns, expandable joints, flash, quality */
#menus .menu.open { background: var(--panel3); color: var(--fg); }
.menu-dd { position: fixed; z-index: 70; min-width: 184px; padding: 5px; background: var(--panel2);
  border: 1px solid var(--line2); border-radius: 7px; box-shadow: 0 12px 32px -16px rgba(0,0,0,.7); }
.ddi { display: flex; align-items: center; gap: 6px; width: 100%; text-align: left; padding: 7px 9px;
  font: 500 12px var(--sans); color: var(--fg2); background: none; border: 0; border-radius: 5px; cursor: default; }
.ddi:hover { background: var(--accent-soft); color: var(--accent); }
.ddi .ck { width: 12px; flex: none; color: var(--accent); font-size: 11px; }
.snode.lv3 { padding-left: 54px; font-size: 11.5px; color: var(--faint); }
#joints > .flash { animation: rowflash .7s ease; }
@keyframes rowflash { 0%,100% { background: transparent; } 30% { background: var(--accent-soft); } }
.hd-render.lo { color: var(--amber); border-color: rgba(245,166,35,.4); }


/* ============================================================
   LIVE TELEMETRY PLOTS  (Foxglove / PlotJuggler-style strip charts)
   ============================================================ */
.plot { display: flex; flex-direction: column; height: 100%; }
.plot-bar { display: flex; align-items: center; gap: 8px; padding: 5px 10px;
  border-bottom: 1px solid var(--line-soft); flex: none; }
.plot-bar select { background: var(--panel2); color: var(--fg); border: 1px solid var(--line);
  border-radius: 5px; padding: 3px 7px; font: 500 11px var(--sans); cursor: pointer; }
#plot-legend { display: flex; flex-wrap: wrap; gap: 4px 6px; flex: 1; min-width: 0; overflow: hidden; }
.plg { display: inline-flex; align-items: center; gap: 5px; padding: 2px 8px;
  border: 1px solid var(--line2); border-radius: 99px; background: var(--panel);
  font: 600 9.5px var(--mono); color: var(--fg2); letter-spacing: .02em; cursor: pointer; }
.plg:hover { border-color: var(--accent-lt); }
.plg i { width: 8px; height: 8px; border-radius: 2px; flex: none; }
.plg b { font-weight: 700; }
.plg em { color: var(--dim); font-style: normal; min-width: 30px; text-align: right;
  font-variant-numeric: tabular-nums; }
.plg.off { opacity: .4; }
.plg.off i { filter: grayscale(1); }
#plot-pause { padding: 3px 10px; font: 700 10px var(--mono); letter-spacing: .04em; flex: none; }
#plot-pause.on { color: var(--amber); border-color: rgba(245,166,35,.5); background: var(--amber-soft); }
.plot-win { font: 600 10px var(--mono); color: var(--faint); flex: none; }
#plot-canvas { flex: 1; width: 100%; min-height: 0; display: block; }


/* ============================================================
   F2: LIVE TF FRAME TREE  (RViz2-style) — eye-toggle 3D triads + live XYZ
   ============================================================ */
.fr .eye { width: 16px; height: 16px; flex: none; padding: 0; cursor: pointer;
  border: 1px solid var(--line2); border-radius: 4px; background: none; }
.fr .eye.on { background: var(--accent); border-color: var(--accent); }
.fr .fr-nm { flex: none; }
.fr .fr-xyz { font-size: 10px; color: var(--dim); font-variant-numeric: tabular-nums; }
.fr.lv1 { padding-left: 24px; }
.fr.lv2 { padding-left: 42px; }


/* ============================================================
   F3: drag-gizmo polish — snap (rail SNAP tool) + on-drag coord HUD
   ============================================================ */
#giz-hud { position: absolute; top: 14px; left: 14px; z-index: 9;
  display: none; padding: 5px 14px; border-radius: 99px; pointer-events: none; white-space: nowrap;
  background: rgba(10,12,16,.82); border: 1px solid var(--accent);
  font: 700 11px var(--mono); letter-spacing: .05em; color: var(--accent); }


/* ============================================================
   F4: GLOBAL SPEED OVERRIDE  (teach-pendant velocity scaling)
   ============================================================ */
#speed-ctl { display: flex; align-items: center; gap: 7px; padding: 2px 9px; flex: none; margin-left: 16px;
  border: 1px solid var(--line); border-radius: 99px; background: var(--panel2); }
#speed-ctl .sc-lbl { font: 700 9px var(--mono); letter-spacing: .14em; color: var(--dim); }
#speed-slider { width: 84px; accent-color: var(--accent); cursor: pointer; }
#speed-val { font: 700 10px var(--mono); color: var(--fg2); min-width: 34px; text-align: right;
  font-variant-numeric: tabular-nums; }


/* ============================================================
   I1: ISAAC SIM-TRANSPORT BAR  (Play / Pause / Stop / Step / Reset + time)
   ============================================================ */
#transport { position: absolute; bottom: 14px; left: 50%; transform: translateX(-50%); z-index: 6;
  display: flex; align-items: center; gap: 4px; padding: 4px 7px;
  background: rgba(14,16,20,.82); border: 1px solid var(--line2); border-radius: 99px;
  box-shadow: 0 8px 24px -16px rgba(0,0,0,.6); }
#transport button { width: 30px; height: 26px; padding: 0; font-size: 13px; line-height: 1; cursor: pointer;
  color: var(--fg2); background: none; border: 1px solid transparent; border-radius: 7px; }
#transport button:hover { color: var(--fg); background: var(--panel3); border-color: var(--line2); }
#transport.paused #tp-play { color: var(--accent); }
#tp-stop:hover { color: var(--bad); border-color: rgba(229,72,77,.5); }
#tp-time { font: 700 11px var(--mono); color: var(--fg2); min-width: 40px; text-align: center;
  font-variant-numeric: tabular-nums; padding: 0 5px; border-left: 1px solid var(--line2); margin-left: 2px; }


/* ============================================================
   I3: VIEWPORT STATS HUD  (Isaac-style FPS / draw-calls / triangles)
   ============================================================ */
#stats-hud { position: absolute; top: 46px; left: 14px; z-index: 6; display: none;
  padding: 6px 10px; border-radius: 8px; pointer-events: none;
  background: rgba(10,12,16,.78); border: 1px solid var(--line2);
  font: 600 10px/1.55 var(--mono); color: var(--fg2); letter-spacing: .03em; }
#stats-hud b { color: var(--accent); font-weight: 700; }
#btn-stats.act { color: var(--accent); border-color: rgba(59,130,246,.4); background: var(--accent-soft); }


/* ============================================================
   I4: STAGE SEARCH + SELECTION OUTLINE
   ============================================================ */
#stage-search { width: calc(100% - 16px); margin: 6px 8px 4px; padding: 4px 9px;
  font: 500 11px var(--sans); color: var(--fg); background: var(--panel2);
  border: 1px solid var(--line); border-radius: 6px; }
#stage-search::placeholder { color: var(--faint); }
#stage-search:focus { outline: none; border-color: var(--accent-lt); }


/* trajectory replay scrubber (Foxglove / rosbag-style seek) */
.traj-bar { display: flex; align-items: center; gap: 8px; height: 25px; padding: 0 9px; border-top: 1px solid var(--line); background: var(--panel2); flex: none; }
.traj-bar button { background: none; border: 1px solid var(--line2); border-radius: 5px; color: var(--fg2); font: 600 9.5px var(--mono); letter-spacing: .04em; height: 17px; padding: 0 7px; cursor: pointer; display: inline-flex; align-items: center; gap: 4px; transition: color .15s, border-color .15s; }
.traj-bar button:hover { color: var(--fg); border-color: var(--accent-dk); }
#traj-play { width: 21px; justify-content: center; padding: 0; font-size: 10px; }
#traj-play.on { color: var(--accent-lt); border-color: var(--accent); }
#traj-live.on { color: var(--ok); border-color: var(--line2); }
#traj-live:not(.on) { color: var(--amber); border-color: var(--amber); }
#traj-scrub { flex: 1; height: 4px; -webkit-appearance: none; appearance: none; background: var(--line2); border-radius: 3px; outline: none; cursor: pointer; }
#traj-scrub::-webkit-slider-thumb { -webkit-appearance: none; appearance: none; width: 11px; height: 11px; border-radius: 50%; background: var(--accent); border: 2px solid var(--panel2); cursor: pointer; }
#traj-scrub::-moz-range-thumb { width: 11px; height: 11px; border-radius: 50%; background: var(--accent); border: 2px solid var(--panel2); cursor: pointer; }
.traj-t { font: 600 9.5px var(--mono); color: var(--fg2); min-width: 40px; text-align: right; }


/* diagnostics panel (RViz robot_monitor-style health tree) */
.diag-tree { height: 100%; overflow-y: auto; padding: 5px 11px 10px; font: 500 11px var(--mono); }
.diag-tree .dgrp { display: flex; align-items: center; gap: 7px; margin: 10px 0 3px; font: 600 9.5px var(--mono); letter-spacing: .09em; text-transform: uppercase; color: var(--fg2); }
.diag-tree .dgrp.dgsys { margin-top: 3px; }
.diag-tree .dgsum { margin-left: auto; color: var(--faint); font-weight: 500; letter-spacing: 0; text-transform: none; }
.diag-tree .drow { display: flex; align-items: center; gap: 7px; padding: 2px 0 2px 3px; color: var(--fg2); }
.diag-tree .drow.dj { padding-left: 17px; }
.diag-tree .dk { min-width: 112px; color: var(--fg); }
.diag-tree .drow.dj .dk { min-width: 30px; }
.diag-tree .dv { color: var(--fg2); }
.diag-tree .dv em { color: var(--faint); font-style: normal; margin-left: 6px; }
.ddot { width: 7px; height: 7px; border-radius: 50%; flex: none; background: var(--ok); }
.ddot.ok { background: var(--ok); }
.ddot.warn { background: var(--amber); }
.ddot.bad { background: var(--bad); box-shadow: 0 0 5px var(--bad); }


/* joint-limit proximity meter — colored edge on the slider as a joint nears its range end */
.jbar { position: relative; }
.jbar.lim-warn::after, .jbar.lim-bad::after { content: ""; position: absolute; bottom: -2px; height: 2px; width: 36%; border-radius: 2px; pointer-events: none; }
.jbar.lim-lo::after { left: 0; }
.jbar.lim-hi::after { right: 0; }
.jbar.lim-warn::after { background: var(--amber); }
.jbar.lim-bad::after { background: var(--bad); box-shadow: 0 0 6px var(--bad); }
.ang.lim-warn { color: var(--amber); }
.ang.lim-bad { color: var(--bad); }


/* diagnostics tab status dot — shows a warn/err colour without opening the tab */
.pt[data-health="warn"]::after, .pt[data-health="bad"]::after { content: ""; display: inline-block; width: 6px; height: 6px; border-radius: 50%; margin-left: 5px; vertical-align: middle; }
.pt[data-health="warn"]::after { background: var(--amber); }
.pt[data-health="bad"]::after { background: var(--bad); box-shadow: 0 0 5px var(--bad); }


/* stage properties-inspector (Isaac / Blender Properties for the selected stage node) */
.stage-insp { margin: 7px 5px 3px; padding: 8px 10px 9px; border: 1px solid var(--line); border-radius: 8px; background: var(--panel2); }
.stage-insp .si-hd { display: flex; align-items: baseline; gap: 8px; margin-bottom: 6px; }
.stage-insp #si-name { font: 600 12px var(--sans); color: var(--fg); }
.stage-insp #si-type { font: 600 9px var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--accent-lt); }
.stage-insp .si-row { display: flex; justify-content: space-between; gap: 10px; padding: 2px 0; font: 500 11px var(--mono); }
.stage-insp .si-k { color: var(--fg2); }
.stage-insp .si-v { color: var(--fg); text-align: right; }
.stage-tree .snode.insp { background: rgba(59,130,246,.14); border-radius: 4px; }


/* viewport display settings popover (RViz Global Options / Isaac viewport) */
.vset-pop { position: absolute; top: 88px; right: 8px; z-index: 6; width: 212px; background: var(--panel); border: 1px solid var(--line2); border-radius: 10px; padding: 9px 11px 11px; box-shadow: 0 12px 32px -16px rgba(0,0,0,.92); }
.vset-pop .vset-hd { font: 600 9.5px var(--mono); letter-spacing: .12em; color: var(--fg2); margin-bottom: 6px; }
.vset-row { display: flex; align-items: center; gap: 8px; padding: 4px 0; font: 500 11.5px var(--sans); color: var(--fg); }
.vset-row > span:first-child { flex: 1; color: var(--fg2); }
.vset-row input[type="range"] { flex: 1.3; height: 4px; accent-color: var(--accent); cursor: pointer; }
.vset-row #vs-fov-v { font: 600 10px var(--mono); color: var(--fg2); min-width: 26px; text-align: right; }
.vset-row input[type="checkbox"] { accent-color: var(--accent); width: 14px; height: 14px; cursor: pointer; }
.vset-bg .vs-sw { width: 18px; height: 18px; border-radius: 5px; border: 1px solid var(--line2); cursor: pointer; }
.vset-bg .vs-sw.on { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
#btn-vset { font-size: 13px; line-height: 1; }


/* waypoint timeline strip (teach-pendant program timeline over the SEQ list) */
.seq-tl { position: relative; display: flex; align-items: center; min-height: 30px; margin: 6px 2px 9px; padding: 0 6px; overflow-x: auto; }
.seq-tl:empty { display: none; }
.seq-tl-line { position: absolute; left: 16px; right: 16px; top: 50%; height: 2px; background: var(--line2); }
.seq-tl-pt { position: relative; z-index: 1; flex: none; width: 22px; height: 22px; margin: 0 5px; border-radius: 50%; border: 1px solid var(--line2); background: var(--panel2); color: var(--fg2); font: 600 10px var(--mono); cursor: pointer; transition: border-color .15s, color .15s, background .15s; }
.seq-tl-pt:hover { border-color: var(--accent); color: var(--fg); }
.seq-tl-pt.active { background: var(--accent); border-color: var(--accent-lt); color: #021019; box-shadow: 0 0 8px -1px var(--accent); }


/* scene markers / annotations list (RViz Markers / Foxglove annotations) */
.marker-list { position: absolute; top: 84px; left: 8px; z-index: 5; min-width: 152px; max-width: 296px; background: rgba(14,16,19,.92); border: 1px solid var(--line2); border-radius: 9px; padding: 7px 9px 8px; backdrop-filter: blur(4px); }
.marker-list .ml-hd { display: flex; justify-content: space-between; align-items: center; font: 600 9.5px var(--mono); letter-spacing: .12em; color: var(--fg2); margin-bottom: 5px; }
.marker-list .ml-clr { background: none; border: 1px solid var(--line2); border-radius: 5px; color: var(--fg2); font: 500 9px var(--mono); padding: 2px 6px; cursor: pointer; }
.marker-list .ml-clr:hover { color: var(--bad); border-color: var(--bad); }
.marker-list .ml-row { display: flex; align-items: center; gap: 7px; padding: 2px 0; font: 500 10.5px var(--mono); }
.marker-list .ml-row > span { color: var(--amber); font-weight: 600; min-width: 20px; }
.marker-list .ml-row em { flex: 1; color: var(--fg2); font-style: normal; }
.marker-list .ml-row button { background: none; border: none; color: var(--faint); cursor: pointer; font-size: 11px; padding: 0 2px; }
.marker-list .ml-row button:hover { color: var(--bad); }


/* Motion-tuning popover (reuses .vset-pop / .vset-row) */
/* the popover grows a row at a time -- cap it to the viewport so the last
   control (Reset) can never end up below the fold on a short window */
#tune-pop { min-width: 230px; max-height: calc(100% - 96px); overflow-y: auto; }
#tune-pop::-webkit-scrollbar { width: 8px; }
#tune-pop::-webkit-scrollbar-thumb { background: var(--raise); border-radius: 4px; }
#tune-pop .vset-hd { margin-bottom: 4px; }
#tune-pop .tune-ctl { padding: 8px 0; }
#tune-pop .tune-ctl + .tune-ctl { border-top: 1px solid var(--line); }
#tune-pop .tune-lab { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; margin-bottom: 8px; }
#tune-pop .tune-lab > span { font: 600 10px var(--sans); letter-spacing: .05em; text-transform: uppercase; color: var(--fg2); white-space: nowrap; }
#tune-pop .tv { white-space: nowrap; }
#tune-pop .tv em { font: 600 12px var(--mono); font-style: normal; color: var(--fg); font-variant-numeric: tabular-nums; }
#tune-pop .tv i { font: 500 9px var(--sans); font-style: normal; color: var(--fg2); margin-left: 4px; }
#tune-pop input[type="range"] { width: 100%; display: block; margin: 0; }
#tune-pop .tn-seg { display: flex; gap: 5px; }
#tune-pop .tn-seg button { flex: 1; padding: 6px 0; font: 600 10px var(--sans); letter-spacing: .08em; text-transform: uppercase; color: var(--fg2); background: var(--panel2); border: 1px solid var(--line); border-radius: 5px; cursor: pointer; transition: border-color .12s, color .12s, background .12s; }
#tune-pop .tn-seg button:hover { color: var(--fg); border-color: var(--accent); }
#tune-pop .tn-seg button.on { color: var(--accent-ink); background: var(--accent); border-color: var(--accent); }
.tn-reset { margin-top: 13px; width: 100%; padding: 7px 0; font: 600 10px var(--sans); letter-spacing: .1em; text-transform: uppercase; color: var(--fg2); background: var(--panel2); border: 1px solid var(--line); border-radius: 5px; cursor: pointer; transition: border-color .12s, color .12s, background .12s; }
.tn-reset:hover { color: var(--fg); border-color: var(--accent); background: var(--panel3); }


/* CSV export buttons (plots + trajectory toolbars) */
.csv-btn { font: 600 9.5px var(--sans); letter-spacing: .06em; color: var(--fg2); background: var(--panel2); border: 1px solid var(--line); border-radius: 4px; padding: 3px 8px; cursor: pointer; white-space: nowrap; }
.csv-btn:hover { color: var(--accent); border-color: var(--accent); }
.csv-btn:active { background: var(--panel3); }


/* Obstacle list — reuses .marker-list, parked bottom-left (markers sit top-left) */
#obstacle-list { top: auto; bottom: 12px; }


/* cap the annotation lists so they never overflow the viewport; keep the header (clear) reachable */
.marker-list { max-height: 42vh; overflow-y: auto; }
.marker-list .ml-hd { position: sticky; top: 0; background: rgba(14,16,19,.98); padding: 2px 0; margin: -2px 0 2px; }


/* obstacle panel: add / select / empty-hint */
.marker-list .ml-acts { display: flex; gap: 5px; }
.marker-list .ml-add { background: none; border: 1px solid var(--accent); border-radius: 5px; color: var(--accent); font: 600 9px var(--mono); padding: 1px 6px; cursor: pointer; letter-spacing: .04em; }
.marker-list .ml-add:hover { background: var(--accent); color: #08090B; }
.marker-list .ml-row.sel { background: rgba(245,166,35,.13); border-radius: 4px; }
.marker-list .ml-row.sel > span { color: var(--amber); }
.marker-list .ml-row { cursor: pointer; }
.marker-list .ml-empty { font: 500 9.5px var(--sans); color: var(--fg2); padding: 5px 2px; line-height: 1.3; }

/* Obstacle size editor (W x D x H, mm) shown on the selected box row */
.marker-list .ob-size { flex: 1; display: inline-flex; align-items: center; justify-content: flex-end; gap: 3px; }
.marker-list .ob-size i { color: var(--faint); font-style: normal; font-size: 9px; }
.marker-list .ob-size b { color: var(--fg2); font-weight: 600; font-size: 9px; margin-left: 1px; }
.marker-list .ob-dim { width: 38px; background: var(--panel2); border: 1px solid var(--line2); color: var(--fg); font: 500 10px var(--mono); font-variant-numeric: tabular-nums; text-align: right; border-radius: 4px; padding: 1px 3px; -moz-appearance: textfield; }
.marker-list .ob-dim::-webkit-outer-spin-button, .marker-list .ob-dim::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.marker-list .ob-dim:focus { outline: none; border-color: var(--accent); }

/* PROG control-flow snippet bar (insert loop/if/wait skeletons) */
.prog-snips { display: flex; align-items: center; gap: 5px; margin: 4px 0 5px; flex-wrap: wrap; }
.prog-snips .ps-lbl { font: 600 9px var(--mono); letter-spacing: .1em; color: var(--fg2); text-transform: uppercase; }
.prog-snips button { background: none; border: 1px solid var(--line2); border-radius: 5px; color: var(--fg2); font: 500 10px var(--mono); padding: 2px 8px; cursor: pointer; }
.prog-snips button:hover { color: var(--accent); border-color: var(--accent); }

/* Marker "go to" buttons — send an arm's TCP to the annotated point */
.marker-list .ml-row button.mk-go { color: var(--accent); border: 1px solid var(--line2); border-radius: 4px; padding: 0 5px; margin-left: 2px; font: 600 9px var(--mono); cursor: pointer; }
.marker-list .ml-row button.mk-go:hover { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }

/* Marker "to PROG" button — append rbt.moveto for the point into the program */
.marker-list .ml-row button.mk-prog { color: var(--accent); border: 1px solid var(--line2); border-radius: 4px; padding: 0 5px; margin-left: 2px; font: 600 9px var(--mono); cursor: pointer; }
.marker-list .ml-row button.mk-prog:hover { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }

/* Marker reachability: dim the arm button that can't reach the point */
.marker-list .ml-row button.mk-go.unreach { opacity: .3; }

/* Marker "both arms" bimanual reach button */
.marker-list .ml-both { background: none; border: 1px solid var(--accent); border-radius: 5px; color: var(--accent); font: 600 9px var(--mono); padding: 1px 6px; cursor: pointer; letter-spacing: .04em; }
.marker-list .ml-both:hover:not(:disabled) { background: var(--accent); color: #08090B; }
.marker-list .ml-both:disabled { opacity: .35; cursor: default; border-color: var(--line2); color: var(--fg2); }