/* ==========================================================================
   ARES-6 · HEXAPOD RESCUE PLATFORM — FIELD TEST CONSOLE
   --------------------------------------------------------------------------
   Stylesheet for src/ui/ui.js. The class vocabulary defined here and the DOM
   emitted by that module are ONE unit — every selector below is produced by
   ui.js, and ui.js uses no class that is not styled here.

   Design language: dark industrial robotics console. Machined 1px borders,
   hazard-yellow structural accents, cyan instrumentation, monospace data.
   Reference resolution 1920x1080; degrades cleanly to 1280x720.

   Sections
     00  tokens
     01  reset / page shell
     02  top bar
     03  panels + control groups
     04  controls  (buttons, toggles, sliders, leg selector, mission cards)
     05  readouts   (stat rows, bars, pills, tables, log, canvases)
     06  viewport + HUD overlays
     07  bottom bar
     08  boot overlay + toasts
     09  keyframes
     10  responsive + reduced motion
   ========================================================================== */

/* ============================== 00 · TOKENS ============================== */

:root {
  /* surfaces */
  --bg-0:      #05070a;
  --bg-1:      #080c11;
  --bg-2:      #0b0f14;
  --panel:     #0d1218;
  --panel-2:   #111821;
  --panel-3:   #0a0e13;
  --inset:     #070b0f;

  /* structure */
  --line:      #1c2530;
  --line-2:    #253243;
  --line-hi:   #33475a;

  /* type */
  --txt:       #cad8e6;
  --txt-2:     #8b9bab;
  --txt-3:     #5c6b7a;
  --txt-4:     #3f4b57;

  /* signal */
  --cyan:      #2fd4e8;
  --cyan-dim:  #0d5c68;
  --hazard:    #f2b60c;
  --ok:        #37f28a;
  --warn:      #ffb020;
  --danger:    #ff3b30;
  --violet:    #a06bff;
  --thermal:   #ff5a2b;

  --cyan-a:    rgba(47, 212, 232, .12);
  --cyan-b:    rgba(47, 212, 232, .34);
  --red-a:     rgba(255, 59, 48, .12);
  --amber-a:   rgba(242, 182, 12, .12);

  --mono: ui-monospace, 'SF Mono', 'JetBrains Mono', 'Roboto Mono', Consolas,
          'Liberation Mono', Menlo, monospace;

  --r: 2px;
  --pad: 10px;
}

/* ========================= 01 · RESET / PAGE SHELL ======================== */

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  overflow: hidden;
}

body {
  background: var(--bg-0);
  color: var(--txt);
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  user-select: none;
  cursor: default;
}

button, input { font-family: inherit; color: inherit; }
button { cursor: pointer; }
h1, h2, h3, p, pre { margin: 0; }
canvas { display: block; }

::selection { background: var(--cyan-b); color: #04080b; }

/* thin machined scrollbars everywhere */
* { scrollbar-width: thin; scrollbar-color: #22303e transparent; }
*::-webkit-scrollbar { width: 8px; height: 8px; }
*::-webkit-scrollbar-track { background: rgba(0, 0, 0, .3); }
*::-webkit-scrollbar-thumb {
  background: #1e2a37;
  border: 1px solid #263447;
  border-radius: 0;
}
*::-webkit-scrollbar-thumb:hover { background: #2b3c4e; }

#app {
  display: grid;
  grid-template-rows: 56px 1fr 92px;
  height: 100dvh;
  overflow: hidden;
  background:
    radial-gradient(1200px 700px at 50% 0%, #0a1017 0%, transparent 70%),
    var(--bg-0);
}

#stage {
  display: grid;
  grid-template-columns: 320px 1fr 340px;
  min-height: 0;
  overflow: hidden;
}

/* ============================== 02 · TOP BAR ============================= */

#topbar {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 18px;
  padding: 0 14px;
  background: linear-gradient(180deg, #0d141c 0%, #080c11 100%);
  border-bottom: 1px solid var(--line);
  z-index: 6;
}
#topbar::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: -1px;
  height: 2px;
  background: repeating-linear-gradient(115deg,
    rgba(242, 182, 12, .55) 0 10px, rgba(10, 14, 19, .9) 10px 20px);
  opacity: .35;
}

.brand { display: flex; align-items: center; gap: 11px; min-width: 0; }
.brand-mark {
  width: 32px; height: 32px;
  color: var(--hazard);
  border: 1px solid #33322a;
  background: linear-gradient(160deg, #16130a, #0a0d11);
  display: grid; place-items: center;
  flex: 0 0 auto;
}
.brand-mark svg { width: 26px; height: 26px; }
.brand-text { min-width: 0; }
.brand-text h1 {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .16em;
  color: #e8f2fb;
  white-space: nowrap;
}
.brand-sub {
  font-size: 9px;
  letter-spacing: .14em;
  color: var(--txt-3);
  font-weight: 500;
  margin-left: 8px;
}
.brand-line {
  font-size: 8.5px;
  letter-spacing: .1em;
  color: var(--txt-4);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ---- mode indicator (centre) ---- */
#topbar-center { display: flex; align-items: center; justify-content: center; }

.mode-pill {
  display: flex;
  align-items: center;
  gap: 12px;
  height: 34px;
  padding: 0 16px 0 12px;
  border: 1px solid var(--line-hi);
  background: linear-gradient(180deg, rgba(255, 255, 255, .03), rgba(0, 0, 0, .25));
  box-shadow: inset 0 0 12px rgba(0, 0, 0, .6);
}
.mode-dot {
  width: 8px; height: 8px;
  background: var(--txt-3);
  box-shadow: 0 0 8px currentColor;
  flex: 0 0 auto;
}
.mode-label {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .18em;
  color: var(--txt);
  min-width: 118px;
  text-align: center;
}
.mode-sep { width: 1px; height: 18px; background: var(--line-2); }
.mode-meta { display: flex; flex-direction: column; line-height: 1.15; }
.mode-code { font-size: 10px; letter-spacing: .12em; color: var(--hazard); }
.mode-clock { font-size: 9px; letter-spacing: .08em; color: var(--txt-3); }

.mode-pill.m-standby { border-color: #2b3745; }
.mode-pill.m-standby .mode-dot { background: #6d7c8b; color: #6d7c8b; }
.mode-pill.m-manual { border-color: var(--cyan-dim); background: linear-gradient(180deg, var(--cyan-a), rgba(0, 0, 0, .3)); }
.mode-pill.m-manual .mode-dot { background: var(--cyan); color: var(--cyan); }
.mode-pill.m-manual .mode-label { color: var(--cyan); }
.mode-pill.m-auto { border-color: #4b3673; background: linear-gradient(180deg, rgba(160, 107, 255, .12), rgba(0, 0, 0, .3)); }
.mode-pill.m-auto .mode-dot { background: var(--violet); color: var(--violet); }
.mode-pill.m-auto .mode-label { color: #c3a4ff; }
.mode-pill.m-mission { border-color: #6b520a; background: linear-gradient(180deg, var(--amber-a), rgba(0, 0, 0, .3)); }
.mode-pill.m-mission .mode-dot { background: var(--hazard); color: var(--hazard); }
.mode-pill.m-mission .mode-label { color: var(--hazard); }
.mode-pill.m-offline { border-color: #5a1c19; background: linear-gradient(180deg, var(--red-a), rgba(0, 0, 0, .3)); }
.mode-pill.m-offline .mode-dot { background: var(--danger); color: var(--danger); }
.mode-pill.m-offline .mode-label { color: #ff7b74; }
.mode-pill.m-fault {
  border-color: var(--danger);
  background: linear-gradient(180deg, rgba(255, 59, 48, .18), rgba(0, 0, 0, .3));
  animation: blink 1s steps(1, end) infinite;
}
.mode-pill.m-fault .mode-dot { background: var(--danger); color: var(--danger); }
.mode-pill.m-fault .mode-label { color: #ff8078; }

/* ---- right cluster ---- */
#topbar-right {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 16px;
}
.tb-stat { display: flex; flex-direction: column; align-items: flex-end; line-height: 1.2; }
.tb-lbl { font-size: 8px; letter-spacing: .14em; color: var(--txt-4); }
.tb-val { font-size: 12px; letter-spacing: .06em; color: var(--txt); font-variant-numeric: tabular-nums; }
.tb-val.ok { color: var(--ok); }
.tb-val.warn { color: var(--warn); }
.tb-val.crit { color: var(--danger); }
.tb-div { width: 1px; height: 26px; background: var(--line); }

.linkbars { display: flex; align-items: flex-end; gap: 2px; height: 14px; }
.linkbars i { width: 3px; background: #1f2a36; display: block; }
.linkbars i:nth-child(1) { height: 4px; }
.linkbars i:nth-child(2) { height: 6px; }
.linkbars i:nth-child(3) { height: 9px; }
.linkbars i:nth-child(4) { height: 12px; }
.linkbars i:nth-child(5) { height: 14px; }
.linkbars i.on { background: var(--cyan); box-shadow: 0 0 5px rgba(47, 212, 232, .8); }
.linkbars.weak i.on { background: var(--warn); box-shadow: 0 0 5px rgba(255, 176, 32, .7); }

/* ==================== 03 · PANELS + CONTROL GROUPS ====================== */

.panel {
  background:
    linear-gradient(180deg, #0e141b 0%, #0a0e13 100%);
  overflow-y: auto;
  overflow-x: hidden;
  min-height: 0;
  padding: 9px 9px 22px;
  display: flex;
  flex-direction: column;
  gap: 7px;
}
#panel-left { border-right: 1px solid var(--line); box-shadow: inset -1px 0 0 rgba(255, 255, 255, .015); }
#panel-right { border-left: 1px solid var(--line); box-shadow: inset 1px 0 0 rgba(255, 255, 255, .015); }

.ctl-group {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--panel) 0%, #0b1016 100%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .03), 0 1px 0 rgba(0, 0, 0, .5);
}

.grp-head {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 26px;
  padding: 0 8px;
  cursor: pointer;
  background: linear-gradient(180deg, #131b24, #0d131a);
  border-bottom: 1px solid var(--line);
  user-select: none;
}
.grp-head:hover { background: linear-gradient(180deg, #17212c, #0f161e); }
.grp-num {
  font-size: 9px;
  letter-spacing: .06em;
  color: #0a0e13;
  background: var(--hazard);
  padding: 1px 4px;
  font-weight: 700;
}
.grp-title {
  font-size: 10px;
  letter-spacing: .16em;
  color: var(--txt);
  font-weight: 600;
  white-space: nowrap;
}
.grp-rule { flex: 1; height: 1px; background: linear-gradient(90deg, var(--line-2), transparent); }
.grp-chev { font-size: 9px; color: var(--txt-3); transition: transform .16s ease; }
.ctl-group.collapsed .grp-chev { transform: rotate(-90deg); }
.ctl-group.collapsed .grp-body { display: none; }

.grp-body {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 8px 8px 9px;
}

.sub-lbl {
  font-size: 8.5px;
  letter-spacing: .14em;
  color: var(--txt-4);
  margin-top: 1px;
}

/* ============================== 04 · CONTROLS =========================== */

/* ---- buttons ---- */
.btn {
  position: relative;
  height: 26px;
  padding: 0 8px;
  font-size: 9.5px;
  letter-spacing: .09em;
  font-weight: 600;
  color: var(--txt-2);
  background: linear-gradient(180deg, #141c25, #0e141b);
  border: 1px solid var(--line-2);
  border-radius: var(--r);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: border-color .12s, color .12s, background .12s;
}
.btn:hover { border-color: var(--line-hi); color: var(--txt); }
.btn:active { transform: translateY(1px); background: #0b1015; }
.btn:focus-visible { outline: 1px solid var(--cyan); outline-offset: 1px; }

.btn.accent {
  color: #061014;
  background: linear-gradient(180deg, #34dcef, #1a9fb2);
  border-color: #47e6f8;
  text-shadow: 0 1px 0 rgba(255, 255, 255, .25);
}
.btn.accent:hover { background: linear-gradient(180deg, #55e8f9, #21b3c7); }

.btn.danger {
  color: #ffb3ae;
  border-color: #5a1f1c;
  background: linear-gradient(180deg, #1e1113, #14090b);
}
.btn.danger:hover { border-color: var(--danger); color: #fff0ee; background: linear-gradient(180deg, #2a1416, #180a0c); }

.btn.on {
  color: var(--cyan);
  border-color: var(--cyan-dim);
  background: linear-gradient(180deg, rgba(47, 212, 232, .16), rgba(47, 212, 232, .05));
  box-shadow: inset 0 0 10px rgba(47, 212, 232, .12);
}

.btn[disabled], .btn.disabled {
  opacity: .32;
  pointer-events: none;
  filter: grayscale(1);
}

.btn.pulse { animation: pulse 1.25s ease-in-out infinite; }

.btn-row { display: grid; grid-template-columns: 1fr 1fr; gap: 4px; }
.btn-row.c1 { grid-template-columns: 1fr; }
.btn-row.c3 { grid-template-columns: 1fr 1fr 1fr; }

/* ---- toggles ---- */
.tgl {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 22px;
  padding: 0 8px 0 6px;
  background: linear-gradient(180deg, #101821, #0c1117);
  border: 1px solid var(--line);
  border-radius: var(--r);
  text-align: left;
  transition: border-color .12s, background .12s;
}
.tgl:hover { border-color: var(--line-hi); }
.tgl-sw {
  position: relative;
  width: 24px; height: 11px;
  flex: 0 0 auto;
  border: 1px solid #2a3644;
  background: #080c10;
  border-radius: 1px;
}
.tgl-sw i {
  position: absolute;
  top: 1px; left: 1px;
  width: 8px; height: 7px;
  background: #47555f;
  transition: transform .13s ease, background .13s;
}
.tgl-lbl { flex: 1; font-size: 9px; letter-spacing: .1em; color: var(--txt-2); }
.tgl-st { font-size: 8.5px; letter-spacing: .1em; color: var(--txt-4); }
.tgl.on { border-color: var(--cyan-dim); background: linear-gradient(180deg, rgba(47, 212, 232, .1), rgba(0, 0, 0, .2)); }
.tgl.on .tgl-sw { border-color: var(--cyan-dim); }
.tgl.on .tgl-sw i { transform: translateX(12px); background: var(--cyan); box-shadow: 0 0 6px rgba(47, 212, 232, .9); }
.tgl.on .tgl-lbl { color: var(--txt); }
.tgl.on .tgl-st { color: var(--cyan); }

/* ---- sliders ---- */
.sld { display: flex; flex-direction: column; gap: 2px; }
.sld-top { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; }
.sld-name { font-size: 8.5px; letter-spacing: .13em; color: var(--txt-3); white-space: nowrap; }
.sld-val {
  font-size: 10.5px;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
  letter-spacing: .02em;
  text-align: right;
}

.sld-input {
  --p: 0%;
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 13px;
  margin: 0;
  background: transparent;
  cursor: ew-resize;
}
.sld-input::-webkit-slider-runnable-track {
  height: 3px;
  border-radius: 1px;
  background:
    linear-gradient(90deg, var(--cyan) 0 var(--p), #16202a var(--p) 100%);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .04);
}
.sld-input::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 13px; height: 13px;
  margin-top: -5px;
  border-radius: 1px;
  background: linear-gradient(180deg, #6fe6f6, #1fb6cb);
  border: 1px solid #06181d;
  box-shadow: 0 0 8px rgba(47, 212, 232, .65), inset 0 1px 0 rgba(255, 255, 255, .5);
}
.sld-input:active::-webkit-slider-thumb { box-shadow: 0 0 13px rgba(47, 212, 232, .95); }
.sld-input::-moz-range-track {
  height: 3px;
  border-radius: 1px;
  background: linear-gradient(90deg, var(--cyan) 0 var(--p), #16202a var(--p) 100%);
}
.sld-input::-moz-range-thumb {
  width: 11px; height: 11px;
  border-radius: 1px;
  background: linear-gradient(180deg, #6fe6f6, #1fb6cb);
  border: 1px solid #06181d;
  box-shadow: 0 0 8px rgba(47, 212, 232, .65);
}
.sld-input:focus-visible::-webkit-slider-thumb { box-shadow: 0 0 0 2px var(--cyan); }

/* ---- gait phase strip + tripod dots ---- */
.phase {
  position: relative;
  height: 12px;
  border: 1px solid var(--line);
  background:
    repeating-linear-gradient(90deg, rgba(255, 255, 255, .05) 0 1px, transparent 1px 10%),
    var(--inset);
  overflow: hidden;
}
.phase-fill {
  position: absolute;
  top: 0; left: 0; bottom: 0;
  width: 0;
  background: linear-gradient(90deg, rgba(47, 212, 232, .1), rgba(47, 212, 232, .45));
  border-right: 1px solid var(--cyan);
  box-shadow: 0 0 10px rgba(47, 212, 232, .45);
}
.phase-cap {
  position: absolute;
  right: 4px; top: 0;
  font-size: 8px;
  line-height: 10px;
  letter-spacing: .1em;
  color: var(--txt-3);
}

.tripod { display: flex; flex-direction: column; gap: 4px; }
.tripod-row { display: flex; align-items: center; gap: 5px; }
.tripod-tag {
  font-size: 8px;
  letter-spacing: .1em;
  color: var(--txt-4);
  width: 44px;
}
.tdot {
  position: relative;
  flex: 1;
  height: 12px;
  border: 1px solid var(--line);
  background: var(--inset);
  font-size: 7.5px;
  line-height: 10px;
  text-align: center;
  color: var(--txt-4);
  letter-spacing: .06em;
}
.tdot.on {
  border-color: var(--cyan-dim);
  background: rgba(47, 212, 232, .18);
  color: var(--cyan);
  box-shadow: 0 0 8px rgba(47, 212, 232, .25) inset;
}
.tdot.fault { border-color: var(--danger); background: var(--red-a); color: #ff8078; animation: blink .7s steps(1, end) infinite; }

/* ---- leg selector ---- */
.leg-grid {
  display: grid;
  grid-template-columns: 1fr 20px 1fr;
  grid-template-rows: repeat(3, auto);
  gap: 4px 0;
  align-items: center;
}
.leg-spine {
  grid-column: 2;
  grid-row: 1 / span 3;
  height: 78%;
  margin: 0 auto;
  width: 10px;
  border: 1px solid var(--line-2);
  background:
    repeating-linear-gradient(0deg, rgba(242, 182, 12, .28) 0 4px, transparent 4px 8px),
    #0b1016;
}
.leg-cell {
  display: flex;
  align-items: center;
  gap: 5px;
  height: 24px;
  padding: 0 6px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, #101821, #0b1016);
  border-radius: var(--r);
  overflow: hidden;
}
.leg-cell.side-l { grid-column: 1; border-right-width: 3px; }
.leg-cell.side-r { grid-column: 3; border-left-width: 3px; flex-direction: row-reverse; }
.leg-cell:hover { border-color: var(--line-hi); }
.lc-id { font-size: 11px; font-weight: 700; letter-spacing: .08em; color: var(--txt-2); }
.lc-name { flex: 1; font-size: 7.5px; letter-spacing: .08em; color: var(--txt-4); white-space: nowrap; overflow: hidden; }
.leg-cell.side-r .lc-name { text-align: right; }
.lc-led { width: 5px; height: 5px; background: var(--ok); box-shadow: 0 0 5px currentColor; color: var(--ok); flex: 0 0 auto; }
.lc-led.air { background: var(--warn); color: var(--warn); }
.lc-led.err { background: var(--danger); color: var(--danger); animation: blink .6s steps(1, end) infinite; }
.leg-cell.sel {
  border-color: var(--cyan);
  background: linear-gradient(180deg, rgba(47, 212, 232, .16), rgba(47, 212, 232, .04));
  box-shadow: 0 0 12px rgba(47, 212, 232, .18);
}
.leg-cell.sel .lc-id { color: var(--cyan); }
.leg-cell.sel .lc-name { color: var(--txt-2); }
.leg-cell.err { border-color: #6a2320; }

/* ---- mission cards ---- */
.mcard {
  display: grid;
  grid-template-columns: 40px 1fr 10px;
  align-items: center;
  gap: 8px;
  padding: 5px 7px;
  text-align: left;
  border: 1px solid var(--line);
  border-left: 3px solid #26313d;
  background: linear-gradient(180deg, #101821, #0b1016);
  transition: border-color .12s, background .12s, transform .1s;
}
.mcard:hover { border-color: var(--line-hi); border-left-color: var(--hazard); }
.mcard:active { transform: translateY(1px); }
.mcard-code {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--hazard);
  text-align: center;
  border: 1px solid #4a3a0c;
  background: rgba(242, 182, 12, .08);
  padding: 2px 0;
}
.mcard-body { min-width: 0; display: flex; flex-direction: column; line-height: 1.3; }
.mcard-name { font-size: 9.5px; letter-spacing: .1em; color: var(--txt); font-weight: 600; }
.mcard-brief {
  font-size: 8px;
  letter-spacing: .04em;
  color: var(--txt-4);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.mcard-go { font-size: 9px; color: var(--txt-4); }
.mcard.active {
  border-color: var(--cyan-dim);
  border-left-color: var(--cyan);
  background: linear-gradient(90deg, rgba(47, 212, 232, .14), rgba(47, 212, 232, .02));
}
.mcard.active .mcard-name { color: var(--cyan); }
.mcard.active .mcard-go { color: var(--cyan); }
.mcard.active .mcard-brief { color: var(--txt-3); }
.mcard.m5 { border-left-color: #5a1f1c; }
.mcard.m5 .mcard-code { color: #ff8078; border-color: #5a1f1c; background: rgba(255, 59, 48, .07); }

/* ---- keyboard legend ---- */
.keylegend {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, #0b1016, #090d12);
  padding: 7px 8px 8px;
}
.keylegend .kl-head {
  font-size: 8px;
  letter-spacing: .16em;
  color: var(--txt-4);
  margin-bottom: 6px;
}
.kl-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 3px 8px; }
.kl-item { display: flex; align-items: center; gap: 5px; font-size: 8px; color: var(--txt-3); letter-spacing: .06em; }
.kbd {
  min-width: 15px;
  padding: 1px 3px;
  text-align: center;
  font-size: 8.5px;
  color: var(--txt-2);
  background: #131b24;
  border: 1px solid var(--line-2);
  border-bottom-width: 2px;
  border-radius: 2px;
}

/* ---- shutdown lock-out (everything except RESET / REBOOT) ---- */
#panel-left.locked .btn:not(.always),
#panel-left.locked .tgl,
#panel-left.locked .sld,
#panel-left.locked .mcard,
#panel-left.locked .leg-cell,
#panel-left.locked .phase,
#panel-left.locked .tripod {
  opacity: .28;
  pointer-events: none;
  filter: grayscale(1);
}
#panel-left.locked .ctl-group { border-color: #191f26; }

/* ============================== 05 · READOUTS =========================== */

/* ---- labelled stat row with bar ---- */
.stat { display: flex; flex-direction: column; gap: 3px; }
.stat-top { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; }
.stat-lbl { font-size: 8.5px; letter-spacing: .14em; color: var(--txt-3); }
.stat-val {
  font-size: 12px;
  color: var(--txt);
  font-variant-numeric: tabular-nums;
  letter-spacing: .02em;
}
.stat-val.ok { color: var(--ok); }
.stat-val.warn { color: var(--warn); }
.stat-val.crit { color: var(--danger); }

.bar {
  position: relative;
  height: 4px;
  background: var(--inset);
  border: 1px solid var(--line);
  overflow: hidden;
}
.bar-fill {
  display: block;
  height: 100%;
  width: 0;
  background: var(--cyan);
  box-shadow: 0 0 8px rgba(47, 212, 232, .55);
  transition: width .12s linear, background .2s;
}
.bar-fill.warn { background: var(--warn); box-shadow: 0 0 8px rgba(255, 176, 32, .5); }
.bar-fill.crit { background: var(--danger); box-shadow: 0 0 9px rgba(255, 59, 48, .6); }
.bar.sweeping::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .28), transparent);
  width: 40%;
  animation: sweep 1.9s linear infinite;
}

/* ---- key/value grid ---- */
.kv { display: grid; grid-template-columns: 1fr auto; gap: 3px 8px; align-items: baseline; }
.kv-k { font-size: 8.5px; letter-spacing: .12em; color: var(--txt-3); }
.kv-v { font-size: 10.5px; color: var(--txt); text-align: right; font-variant-numeric: tabular-nums; }
.kv-v.ok { color: var(--ok); }
.kv-v.warn { color: var(--warn); }
.kv-v.crit { color: var(--danger); }
.kv-v.cyan { color: var(--cyan); }
.kv-v.dim { color: var(--txt-4); }

/* ---- pills ---- */
.pill {
  display: inline-block;
  font-size: 8px;
  letter-spacing: .1em;
  padding: 1px 5px;
  border: 1px solid var(--line-2);
  color: var(--txt-3);
  background: rgba(255, 255, 255, .02);
  white-space: nowrap;
}
.pill.ok { color: var(--ok); border-color: #14603a; background: rgba(55, 242, 138, .08); }
.pill.cyan { color: var(--cyan); border-color: var(--cyan-dim); background: rgba(47, 212, 232, .08); }
.pill.warn { color: var(--warn); border-color: #6b4a0a; background: rgba(255, 176, 32, .08); }
.pill.err { color: #ff7b74; border-color: #5a1f1c; background: rgba(255, 59, 48, .1); }
.pill.violet { color: var(--violet); border-color: #4b3673; background: rgba(160, 107, 255, .1); }
.pill.idle { color: var(--txt-4); }
.pill.blink { animation: blink .62s steps(1, end) infinite; }

.pill-row { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.pill-row .pr-k { font-size: 8.5px; letter-spacing: .12em; color: var(--txt-3); }

/* ---- big number ---- */
.big-wrap { display: flex; align-items: flex-end; justify-content: space-between; gap: 8px; }
.big-num {
  font-size: 30px;
  line-height: 1;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
  text-shadow: 0 0 18px rgba(47, 212, 232, .35);
}
.big-num.hot { color: var(--thermal); text-shadow: 0 0 18px rgba(255, 90, 43, .4); }
.big-cap { font-size: 8px; letter-spacing: .14em; color: var(--txt-4); text-align: right; }

/* ---- sparklines ---- */
.spark {
  width: 100%;
  height: 86px;
  background: var(--inset);
  border: 1px solid var(--line);
}

/* ---- leg status table ---- */
.legtab { display: flex; flex-direction: column; gap: 2px; }
.legtab-head, .legrow {
  display: grid;
  grid-template-columns: 30px 1fr 44px 52px;
  align-items: center;
  gap: 5px;
}
.legtab-head {
  font-size: 7.5px;
  letter-spacing: .12em;
  color: var(--txt-4);
  padding: 0 4px 3px;
  border-bottom: 1px solid var(--line);
}
.legtab-head span:nth-child(3), .legtab-head span:nth-child(4) { text-align: right; }
.legrow {
  height: 21px;
  padding: 0 4px;
  border: 1px solid transparent;
  background: rgba(255, 255, 255, .012);
}
.legrow:hover { background: rgba(255, 255, 255, .04); }
.lr-id { font-size: 10px; font-weight: 700; letter-spacing: .06em; color: var(--txt-2); }
.lr-n { font-size: 9.5px; text-align: right; color: var(--txt-2); font-variant-numeric: tabular-nums; }
.lr-n.hot { color: var(--warn); }
.lr-n.crit { color: var(--danger); }
.legrow.sel { border-color: var(--cyan-dim); background: rgba(47, 212, 232, .07); }
.legrow.fault {
  border-color: #6a2320;
  background: rgba(255, 59, 48, .1);
  animation: blink .68s steps(1, end) infinite;
}

/* ---- minimap ---- */
.mm-wrap {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  border: 1px solid var(--line);
  background: var(--inset);
}
#minimap { width: 100%; height: auto; aspect-ratio: 1 / 1; display: block; }
.mm-foot {
  display: flex;
  justify-content: space-between;
  font-size: 7.5px;
  letter-spacing: .12em;
  color: var(--txt-4);
  padding: 3px 4px 0;
}

/* ---- mission log ---- */
.log {
  height: 208px;
  overflow-y: auto;
  overflow-x: hidden;
  border: 1px solid var(--line);
  background: var(--inset);
  padding: 4px 5px;
  display: flex;
  flex-direction: column;
  gap: 1px;
  scroll-behavior: auto;
}
.log-row {
  display: grid;
  grid-template-columns: 62px 40px 1fr;
  gap: 5px;
  font-size: 8.5px;
  line-height: 1.45;
  align-items: baseline;
  padding: 1px 2px;
  border-left: 2px solid transparent;
}
.log-ts { color: var(--txt-4); font-variant-numeric: tabular-nums; }
.log-src { color: var(--txt-3); letter-spacing: .06em; overflow: hidden; }
.log-txt { color: var(--txt-2); word-break: break-word; }
.log-row.lv-ok { border-left-color: var(--ok); }
.log-row.lv-ok .log-txt { color: var(--ok); }
.log-row.lv-warn { border-left-color: var(--warn); background: rgba(255, 176, 32, .045); }
.log-row.lv-warn .log-txt { color: var(--warn); }
.log-row.lv-err { border-left-color: var(--danger); background: rgba(255, 59, 48, .07); }
.log-row.lv-err .log-txt { color: #ff8078; }
.log-row.lv-sys { border-left-color: var(--cyan); }
.log-row.lv-sys .log-txt { color: var(--cyan); }
.log-row.lv-info { border-left-color: #223040; }

/* ======================= 06 · VIEWPORT + HUD OVERLAYS ==================== */

#viewport {
  position: relative;
  overflow: hidden;
  background: var(--bg-0);
  --wash: rgba(0, 0, 0, 0);
}
#gl { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; }

/* faint technical grid, masked to the centre */
#viewport::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(47, 212, 232, .04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(47, 212, 232, .04) 1px, transparent 1px);
  background-size: 72px 72px, 72px 72px;
  -webkit-mask-image: radial-gradient(ellipse at center, #000 15%, transparent 70%);
  mask-image: radial-gradient(ellipse at center, #000 15%, transparent 70%);
  opacity: .55;
}
/* scanlines + vignette + thermal wash */
#viewport::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 3;
  pointer-events: none;
  background:
    linear-gradient(var(--wash), var(--wash)),
    repeating-linear-gradient(0deg, rgba(200, 235, 255, .018) 0 1px, transparent 1px 3px),
    radial-gradient(ellipse 78% 78% at 50% 50%, transparent 40%, rgba(0, 0, 0, .62) 100%);
}
body.thermal-on #viewport { --wash: rgba(255, 90, 43, .085); }

#hud {
  position: absolute;
  inset: 0;
  z-index: 4;
  pointer-events: none;
  font-size: 9px;
}

/* corner brackets */
.hud-corner { position: absolute; width: 22px; height: 22px; border: 1px solid rgba(47, 212, 232, .28); }
.hud-corner.tl { top: 8px; left: 8px; border-right: 0; border-bottom: 0; }
.hud-corner.tr { top: 8px; right: 8px; border-left: 0; border-bottom: 0; }
.hud-corner.bl { bottom: 8px; left: 8px; border-right: 0; border-top: 0; }
.hud-corner.br { bottom: 8px; right: 8px; border-left: 0; border-top: 0; }

.hud-block {
  position: absolute;
  padding: 7px 9px;
  background: linear-gradient(180deg, rgba(8, 12, 17, .74), rgba(8, 12, 17, .5));
  border: 1px solid rgba(47, 212, 232, .16);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
}
#hud-topleft { top: 18px; left: 18px; min-width: 188px; }
#hud-topright { top: 18px; right: 18px; }
#hud-bottomleft { bottom: 18px; left: 18px; }

.hud-title {
  font-size: 10px;
  letter-spacing: .18em;
  color: var(--cyan);
  font-weight: 700;
  margin-bottom: 5px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.hud-title .hud-live {
  width: 5px; height: 5px;
  background: var(--ok);
  box-shadow: 0 0 6px var(--ok);
  animation: blinkSoft 1.6s ease-in-out infinite;
}
.hud-line { display: flex; justify-content: space-between; gap: 14px; line-height: 1.55; }
.hud-k { font-size: 8px; letter-spacing: .12em; color: var(--txt-4); }
.hud-v { font-size: 9.5px; color: var(--txt); font-variant-numeric: tabular-nums; }

.hud-icons { display: flex; gap: 5px; }
.hud-icon {
  min-width: 42px;
  text-align: center;
  padding: 3px 5px;
  font-size: 8px;
  letter-spacing: .1em;
  color: var(--txt-4);
  border: 1px solid var(--line);
  background: rgba(0, 0, 0, .3);
}
.hud-icon.on {
  color: var(--cyan);
  border-color: var(--cyan-dim);
  background: rgba(47, 212, 232, .13);
  box-shadow: 0 0 10px rgba(47, 212, 232, .2);
}
.hud-icon.on.thermal { color: var(--thermal); border-color: #6b2a13; background: rgba(255, 90, 43, .14); box-shadow: 0 0 10px rgba(255, 90, 43, .22); }
.hud-icon.on.violet { color: var(--violet); border-color: #4b3673; background: rgba(160, 107, 255, .14); }

.hud-strip { display: flex; gap: 4px; margin-top: 4px; }
.cdot {
  width: 22px;
  height: 13px;
  border: 1px solid var(--line);
  background: var(--inset);
  font-size: 7px;
  line-height: 11px;
  text-align: center;
  color: var(--txt-4);
}
.cdot.on { border-color: #14603a; background: rgba(55, 242, 138, .16); color: var(--ok); }
.cdot.err { border-color: var(--danger); background: rgba(255, 59, 48, .2); color: #ff8078; animation: blink .6s steps(1, end) infinite; }

/* scan progress */
.hud-scan {
  position: absolute;
  left: 50%;
  bottom: 76px;
  transform: translateX(-50%);
  width: 380px;
  padding: 8px 12px 9px;
  background: linear-gradient(180deg, rgba(8, 12, 17, .82), rgba(8, 12, 17, .6));
  border: 1px solid rgba(47, 212, 232, .3);
  box-shadow: 0 0 30px rgba(47, 212, 232, .12);
}
.hud-scan-label { font-size: 9px; letter-spacing: .2em; color: var(--cyan); text-align: center; }
.hud-scan-track {
  height: 5px;
  margin: 6px 0 5px;
  background: var(--inset);
  border: 1px solid var(--line-2);
  overflow: hidden;
  position: relative;
}
.hud-scan-fill {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, rgba(47, 212, 232, .35), var(--cyan));
  box-shadow: 0 0 12px rgba(47, 212, 232, .8);
  transition: width .1s linear;
}
.hud-scan-sub { font-size: 7.5px; letter-spacing: .16em; color: var(--txt-4); text-align: center; }

/* fault banner */
.hud-alert {
  position: absolute;
  left: 50%;
  top: 16px;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 7px 18px;
  font-size: 11px;
  letter-spacing: .18em;
  font-weight: 700;
  white-space: nowrap;
  color: #fff0ee;
  background: linear-gradient(180deg, rgba(90, 20, 18, .9), rgba(40, 8, 8, .85));
  border: 1px solid var(--danger);
  box-shadow: 0 0 28px rgba(255, 59, 48, .35);
  animation: blink 1s steps(1, end) infinite;
}
.hud-alert-icon { color: var(--danger); font-size: 12px; }

/* drone downlink PiP — .dronecam-body stays transparent for the WebGL scissor pass */
#dronecam {
  position: absolute;
  right: 18px;
  bottom: 18px;
  width: 242px;
  /* The panel chrome lives on the head/foot only — a background here would sit
     between the WebGL scissor pass and the viewer and wash the downlink out. */
  background: transparent;
  border: 1px solid rgba(160, 107, 255, .35);
  box-shadow: 0 0 24px rgba(0, 0, 0, .6);
}
.dronecam-head {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 7px;
  font-size: 8px;
  letter-spacing: .14em;
  color: var(--violet);
  background: linear-gradient(180deg, rgba(8, 12, 17, .94), rgba(8, 12, 17, .82));
  border-bottom: 1px solid rgba(160, 107, 255, .25);
}
.dronecam-head .rec {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--danger);
  box-shadow: 0 0 6px var(--danger);
  animation: blinkSoft 1.3s ease-in-out infinite;
}
.dronecam-body {
  width: 240px;
  height: 150px;
  background: transparent;
  border: 1px solid rgba(160, 107, 255, .22);
  margin: 0 auto;
}
.dronecam-foot {
  display: flex;
  justify-content: space-between;
  background: rgba(8, 12, 17, .88);
  padding: 3px 7px 4px;
  font-size: 8px;
  letter-spacing: .1em;
  color: var(--txt-3);
  font-variant-numeric: tabular-nums;
}

#viewport-hint {
  position: absolute;
  left: 50%;
  bottom: 12px;
  transform: translateX(-50%);
  z-index: 5;
  font-size: 8px;
  letter-spacing: .16em;
  color: var(--txt-4);
  background: rgba(6, 9, 13, .55);
  border: 1px solid rgba(28, 37, 48, .8);
  padding: 3px 10px;
  pointer-events: none;
  animation: hintFade .8s ease 16s forwards;
}

/* ============================= 07 · BOTTOM BAR ========================== */

#bottombar {
  display: grid;
  grid-template-columns: 320px 1fr 340px;
  align-items: stretch;
  gap: 0;
  background: linear-gradient(180deg, #0a0f15, #070a0e);
  border-top: 1px solid var(--line);
  z-index: 5;
}
.bb-col { padding: 8px 12px; display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.bb-col + .bb-col { border-left: 1px solid var(--line); }
/* column roles — width comes from #bottombar's grid; these just clip overflow */
.bb-left, .bb-center, .bb-right { overflow: hidden; }
.bb-cap {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 8px;
  letter-spacing: .16em;
  color: var(--txt-4);
}
.bb-cmd {
  display: flex;
  align-items: baseline;
  gap: 6px;
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--cyan);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.bb-arrow { color: var(--hazard); }
.bb-desc {
  font-size: 8.5px;
  letter-spacing: .05em;
  color: var(--txt-3);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.tl-canvas { width: 100%; height: 46px; border: 1px solid var(--line); background: var(--inset); }
.tl-legend { display: flex; gap: 9px; margin-left: auto; }
.tl-key { display: flex; align-items: center; gap: 4px; font-size: 7.5px; letter-spacing: .1em; color: var(--txt-4); }
.tl-key i { width: 6px; height: 6px; display: block; }

.bb-right-grid { display: grid; grid-template-columns: 1fr 1fr auto; gap: 4px 12px; align-items: center; }
.bb-stat { display: flex; flex-direction: column; line-height: 1.2; }
.bb-stat .k { font-size: 7.5px; letter-spacing: .14em; color: var(--txt-4); }
.bb-stat .v { font-size: 12px; color: var(--txt); font-variant-numeric: tabular-nums; }

.hexdiag {
  grid-column: 3;
  grid-row: 1 / span 2;
  display: grid;
  grid-template-columns: 13px 8px 13px;
  grid-template-rows: repeat(3, 12px);
  gap: 3px 0;
  align-items: center;
  justify-items: center;
}
.hexdiag .spine {
  grid-column: 2;
  grid-row: 1 / span 3;
  width: 5px;
  height: 80%;
  border: 1px solid var(--line-2);
  background: repeating-linear-gradient(0deg, rgba(242, 182, 12, .3) 0 3px, transparent 3px 6px);
}
.hx {
  width: 13px; height: 10px;
  border: 1px solid var(--line-2);
  background: var(--inset);
}
.hx.on { border-color: #14603a; background: rgba(55, 242, 138, .35); box-shadow: 0 0 6px rgba(55, 242, 138, .35); }
.hx.err { border-color: var(--danger); background: rgba(255, 59, 48, .45); animation: blink .6s steps(1, end) infinite; }

/* ======================== 08 · BOOT OVERLAY + TOASTS ==================== */

#boot {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  background:
    radial-gradient(900px 520px at 50% 46%, #0c141c 0%, #05070a 72%);
  opacity: 1;
  transition: opacity .7s ease, visibility 0s linear .7s;
}
#boot.hidden { opacity: 0; visibility: hidden; pointer-events: none; }
#boot::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(0deg, rgba(200, 235, 255, .03) 0 1px, transparent 1px 3px);
}
.boot-inner { width: 560px; text-align: left; }
.boot-title {
  font-size: 46px;
  font-weight: 700;
  letter-spacing: .34em;
  color: #e8f2fb;
  text-shadow: 0 0 34px rgba(47, 212, 232, .3);
}
.boot-sub {
  font-size: 9px;
  letter-spacing: .3em;
  color: var(--txt-3);
  margin: 4px 0 20px;
}
.boot-track {
  height: 3px;
  background: #10171f;
  border: 1px solid var(--line);
  overflow: hidden;
}
.boot-fill {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--cyan-dim), var(--cyan));
  box-shadow: 0 0 14px rgba(47, 212, 232, .8);
}
#boot-log {
  margin-top: 14px;
  height: 176px;
  overflow: hidden;
  font-family: var(--mono);
  font-size: 9.5px;
  line-height: 1.75;
  letter-spacing: .06em;
  color: var(--txt-3);
  white-space: pre-wrap;
}
#boot-log .b-ok { color: var(--ok); }
#boot-log .b-hz { color: var(--hazard); }

#toast-stack {
  position: absolute;
  top: 58px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  gap: 5px;
  align-items: center;
  z-index: 8;
}
.toast {
  min-width: 190px;
  max-width: 420px;
  padding: 6px 14px;
  font-size: 9.5px;
  letter-spacing: .1em;
  text-align: center;
  color: var(--txt);
  background: linear-gradient(180deg, rgba(12, 18, 25, .95), rgba(8, 12, 17, .9));
  border: 1px solid var(--line-hi);
  border-left: 3px solid var(--cyan);
  box-shadow: 0 4px 18px rgba(0, 0, 0, .6);
  animation: toastIn .22s ease-out;
}
.toast.leaving { animation: toastOut .3s ease-in forwards; }
.toast.ok { border-left-color: var(--ok); color: var(--ok); }
.toast.warn { border-left-color: var(--warn); color: var(--warn); }
.toast.err { border-left-color: var(--danger); color: #ff8078; }
.toast.sys { border-left-color: var(--hazard); color: var(--hazard); }

/* ============================== 09 · KEYFRAMES ========================== */

@keyframes blink {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: .28; }
}
@keyframes blinkSoft {
  0%, 100% { opacity: 1; }
  50% { opacity: .35; }
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255, 59, 48, .45); }
  50% { box-shadow: 0 0 0 5px rgba(255, 59, 48, 0); }
}
@keyframes sweep {
  0% { transform: translateX(-120%); }
  100% { transform: translateX(320%); }
}
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
@keyframes toastIn {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: none; }
}
@keyframes toastOut {
  to { opacity: 0; transform: translateY(-6px); }
}
@keyframes hintFade {
  to { opacity: 0; }
}

.spinner {
  display: inline-block;
  width: 8px; height: 8px;
  border: 1px solid var(--cyan);
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin .8s linear infinite;
}

/* ==================== 10 · RESPONSIVE + REDUCED MOTION ================== */

@media (max-width: 1500px) {
  #stage, #bottombar { grid-template-columns: 280px 1fr 300px; }
  /* tighter type so the long command labels stop eliding in the narrow panel */
  .btn { font-size: 9px; letter-spacing: .05em; padding: 0 5px; }
  .mode-label { min-width: 96px; font-size: 12px; }
  .brand-line { display: none; }
  .log { height: 168px; }
  #hud-topleft { min-width: 168px; }
}

@media (max-width: 1180px) {
  #stage, #bottombar { grid-template-columns: 250px 1fr 268px; }
  .kl-grid { grid-template-columns: 1fr; }
  .brand-sub { display: none; }
}

@media (max-height: 820px) {
  #app { grid-template-rows: 52px 1fr 84px; }
  .log { height: 150px; }
  .spark { height: 72px; }
  .boot-title { font-size: 36px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  #viewport-hint { opacity: 1; }
}