/* ============================================================================
   MiniCore driver station — mission-control instrument panel.

   Palette validated for dark surface #17202A (OKLCH lightness band 0.48–0.67,
   chroma floor, normal-vision floor, 3:1 contrast). Green and red separate by
   only ΔE 2.6 under tritanopia, so NO state in this UI is signalled by colour
   alone — every one carries a word, and the arm band carries a full wordmark.
   ========================================================================= */

:root {
  /* Surfaces — cool graphite, near-black but not black */
  --s-void: #0c1116;
  --s-deck: #11181f;
  --s-card: #17202a;
  --s-rise: #1e2935;
  --line: #26333f;
  --line-bright: #33475a;

  /* Ink */
  --ink: #e6edf3;
  --ink-dim: #96a5b4;
  --ink-mute: #6b7c8c;

  /* Validated status set */
  --go: #2fae6c;
  --warn: #ad8a14;
  --stop: #d0453e;
  --info: #2e9bc4;

  --go-lift: #43c47e;
  --stop-lift: #e35c54;

  /* Type: one monospace system, sized as an instrument face. No webfont —
     a competition venue is where a font CDN fetch fails. */
  --mono: ui-monospace, "SF Mono", SFMono-Regular, "Cascadia Mono", "Segoe UI Mono",
    "Roboto Mono", Menlo, Consolas, monospace;

  --r: 3px;
  --gut: 0.875rem;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--s-void);
}

body {
  margin: 0;
  padding: var(--gut);
  min-height: 100vh;
  font-family: var(--mono);
  font-size: 15px;
  line-height: 1.45;
  color: var(--ink);
  background: var(--s-void);
  font-variant-ligatures: none;
  -webkit-font-smoothing: antialiased;
}

/* ── The bezel: signature element. Its ring is the field state, visible from
   across the room in peripheral vision. ─────────────────────────────────── */
.bezel {
  max-width: 74rem;
  margin: 0 auto;
  padding: 3px;
  border-radius: calc(var(--r) + 3px);
  background: var(--line);
  box-shadow: 0 0 0 1px #000 inset;
  transition: background 140ms linear, box-shadow 140ms linear;
}

body[data-armed="true"] .bezel {
  background: var(--go);
  box-shadow: 0 0 0 1px #000 inset, 0 0 34px -6px color-mix(in srgb, var(--go) 62%, transparent);
}

/* ── Top rail ───────────────────────────────────────────────────────────── */
.rail {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gut);
  align-items: center;
  justify-content: space-between;
  padding: 0.7rem 0.9rem;
  background: var(--s-card);
  border-radius: var(--r) var(--r) 0 0;
  border-bottom: 1px solid var(--line);
}

.rail__mark {
  display: block;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.rail__sub {
  display: block;
  font-size: 0.7rem;
  color: var(--ink-mute);
  letter-spacing: 0.06em;
}

/* Telemetry readouts — label above value, the way a panel is labelled */
.rail__tele {
  display: flex;
  flex-wrap: wrap;
  gap: 1.35rem;
  margin: 0;
}

.tele dt {
  font-size: 0.62rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

.tele dd {
  margin: 0.1rem 0 0;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.82rem;
  color: var(--ink-dim);
  font-variant-numeric: tabular-nums;
}

.num {
  color: var(--ink);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.unit {
  color: var(--ink-mute);
  font-size: 0.7rem;
}

.dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ink-mute);
  flex: none;
}

/* Scoped to the rail's own indicator — a bare `.dot` rule would also repaint
   every slot status dot, showing empty slots as live. */
body[data-link="up"] #dongleDot {
  background: var(--go);
  box-shadow: 0 0 7px color-mix(in srgb, var(--go) 75%, transparent);
}

.rail__act {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex-wrap: wrap;
}

/* ── Buttons ────────────────────────────────────────────────────────────── */
.btn {
  font: inherit;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  padding: 0.42rem 0.8rem;
  color: var(--ink);
  background: var(--s-rise);
  border: 1px solid var(--line-bright);
  border-radius: var(--r);
  cursor: pointer;
  transition: background 100ms linear, border-color 100ms linear;
}

.btn:hover:not(:disabled) {
  background: #26333f;
  border-color: #43596e;
}

.btn--primary {
  border-color: var(--info);
  color: #d6f0fa;
  background: color-mix(in srgb, var(--info) 20%, var(--s-rise));
}

.btn--primary:hover:not(:disabled) {
  background: color-mix(in srgb, var(--info) 32%, var(--s-rise));
}

.btn--sm {
  font-size: 0.68rem;
  padding: 0.25rem 0.55rem;
}

.btn:disabled {
  opacity: 0.38;
  cursor: not-allowed;
}

/* Focus: always visible, never removed */
:where(button, select, input, a, [tabindex]):focus-visible {
  outline: 2px solid var(--info);
  outline-offset: 2px;
}

/* ── Notices ────────────────────────────────────────────────────────────── */
.notice {
  margin: 0;
  padding: 0.6rem 0.9rem;
  font-size: 0.8rem;
  color: #f4dcc8;
  background: color-mix(in srgb, var(--warn) 22%, var(--s-card));
  border-bottom: 1px solid var(--line);
}

.fault {
  margin: 0;
  padding: 0.28rem 0.55rem;
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  color: #ffd9d6;
  background: color-mix(in srgb, var(--stop) 26%, var(--s-rise));
  border: 1px solid var(--stop);
  border-radius: var(--r);
}

/* ── Arm band: the one bold move ─────────────────────────────────────────── */
.arm {
  position: relative;
  padding: 1.5rem 1rem 1.1rem;
  text-align: center;
  background:
    repeating-linear-gradient(
      135deg,
      transparent 0 11px,
      color-mix(in srgb, var(--stop) 7%, transparent) 11px 22px
    ),
    var(--s-deck);
  border-bottom: 1px solid var(--line);
  transition: background 140ms linear;
}

body[data-armed="true"] .arm {
  background:
    repeating-linear-gradient(
      135deg,
      transparent 0 11px,
      color-mix(in srgb, var(--go) 10%, transparent) 11px 22px
    ),
    color-mix(in srgb, var(--go) 9%, var(--s-deck));
}

.arm__state {
  margin: 0;
  font-size: clamp(1.7rem, 6.5vw, 3.1rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.2em;
  text-indent: 0.2em; /* balance the trailing letter-space */
  text-transform: uppercase;
  color: var(--stop-lift);
}

body[data-armed="true"] .arm__state {
  color: var(--go-lift);
}

.arm__read {
  margin: 0.5rem 0 1rem;
  font-size: 0.78rem;
  color: var(--ink-dim);
}

.arm__switch {
  font: inherit;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  min-width: min(23rem, 100%);
  padding: 0.85rem 1.6rem;
  cursor: pointer;
  color: #eafff2;
  background: color-mix(in srgb, var(--go) 26%, var(--s-rise));
  border: 2px solid var(--go);
  border-radius: var(--r);
  transition: background 100ms linear, transform 60ms ease-out;
}

.arm__switch:hover:not(:disabled) {
  background: color-mix(in srgb, var(--go) 40%, var(--s-rise));
}

.arm__switch:active:not(:disabled) {
  transform: translateY(1px);
}

body[data-armed="true"] .arm__switch {
  color: #ffeceb;
  background: color-mix(in srgb, var(--stop) 28%, var(--s-rise));
  border-color: var(--stop);
}

body[data-armed="true"] .arm__switch:hover:not(:disabled) {
  background: color-mix(in srgb, var(--stop) 42%, var(--s-rise));
}

.arm__switch:disabled {
  color: var(--ink-mute);
  background: var(--s-rise);
  border-color: var(--line-bright);
  cursor: not-allowed;
}

.arm__panic {
  margin: 0.7rem 0 0;
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

kbd {
  font: inherit;
  font-size: 0.66rem;
  padding: 0.1rem 0.32rem;
  color: var(--ink-dim);
  background: var(--s-rise);
  border: 1px solid var(--line-bright);
  border-radius: 2px;
}

/* ── Deck ───────────────────────────────────────────────────────────────── */
.deck {
  display: grid;
  grid-template-columns: 1fr 19rem;
  gap: 1px;
  background: var(--line);
  border-radius: 0 0 var(--r) var(--r);
  overflow: hidden;
}

.slots {
  background: var(--s-deck);
  padding: var(--gut);
}

.slots__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--gut);
}

/* ── Slot cards: the primary work surface ───────────────────────────────── */
.slot {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  padding: 0.8rem;
  background: var(--s-card);
  border: 1px solid var(--line);
  border-left: 3px solid var(--line-bright);
  border-radius: var(--r);
  transition: border-color 120ms linear;
}

.slot[data-live="true"] {
  border-left-color: var(--go);
}

.slot[data-paired="false"] {
  border-left-color: var(--line-bright);
}

.slot__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem;
}

.slot__idx {
  font-size: 0.62rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

.slot__name {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.slot[data-paired="false"] .slot__name {
  color: var(--ink-mute);
  font-weight: 400;
}

/* Status line — always a word, never colour alone */
.slot__status {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  margin: 0;
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink-dim);
}

.slot__status .dot {
  background: var(--ink-mute);
}

.slot[data-state="live"] .slot__status {
  color: var(--go-lift);
}

.slot[data-state="live"] .slot__status .dot {
  background: var(--go);
  box-shadow: 0 0 6px color-mix(in srgb, var(--go) 70%, transparent);
}

.slot[data-state="stale"] .slot__status {
  color: color-mix(in srgb, var(--warn) 62%, var(--ink));
}

.slot[data-state="stale"] .slot__status .dot {
  background: var(--warn);
}

.slot[data-state="standby"] .slot__status {
  color: var(--ink-dim);
}

.slot__field {
  display: grid;
  gap: 0.25rem;
}

.slot__field > span {
  font-size: 0.6rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

select {
  font: inherit;
  font-size: 0.78rem;
  width: 100%;
  padding: 0.4rem 0.45rem;
  color: var(--ink);
  background: var(--s-rise);
  border: 1px solid var(--line-bright);
  border-radius: var(--r);
  cursor: pointer;
}

select:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.slot__mac {
  margin: 0;
  font-size: 0.66rem;
  color: var(--ink-mute);
  letter-spacing: 0.03em;
}

/* Stick telemetry: two mirrored bars, centre-anchored. Real axis values. */
.sticks {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  padding-top: 0.15rem;
}

.stick {
  display: grid;
  gap: 0.2rem;
}

.stick > span {
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

.stick__track {
  position: relative;
  height: 5px;
  background: var(--s-rise);
  border-radius: 2px;
  overflow: hidden;
}

/* centre tick */
.stick__track::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--line-bright);
}

.stick__fill {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 0;
  background: var(--info);
  border-radius: 2px;
  transition: none;
}

/* ── Utility column ─────────────────────────────────────────────────────── */
.util {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--line);
}

.card--util {
  padding: 0.75rem 0.8rem;
  background: var(--s-card);
}

.card--log {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

.card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.card__head h2 {
  margin: 0;
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--ink-dim);
}

.empty {
  margin: 0;
  font-size: 0.72rem;
  color: var(--ink-mute);
}

/* Robot + gamepad lists */
.rlist,
.glist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.3rem;
}

.rlist li,
.glist li {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.45rem;
  font-size: 0.72rem;
  background: var(--s-rise);
  border: 1px solid var(--line);
  border-radius: var(--r);
  min-width: 0; /* let the flex child actually shrink so ellipsis applies */
}

.rlist .r-name,
.glist .g-name {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.rlist .r-mac {
  margin-left: auto;
  font-size: 0.64rem;
  color: var(--ink-mute);
  flex: none;
}

.glist li[data-active="true"] {
  border-color: var(--go);
  background: color-mix(in srgb, var(--go) 17%, var(--s-rise));
}

.g-idx {
  flex: none;
  padding: 0.02rem 0.28rem;
  font-size: 0.62rem;
  color: var(--ink-dim);
  background: var(--s-card);
  border: 1px solid var(--line-bright);
  border-radius: 2px;
}

/* Activity log */
.log {
  list-style: none;
  margin: 0;
  padding: 0;
  overflow-y: auto;
  max-height: 15rem;
  font-size: 0.68rem;
  line-height: 1.6;
  color: var(--ink-dim);
}

.log li {
  display: flex;
  gap: 0.45rem;
  padding: 0.1rem 0;
  border-bottom: 1px solid color-mix(in srgb, var(--line) 55%, transparent);
}

.log time {
  flex: none;
  color: var(--ink-mute);
  font-variant-numeric: tabular-nums;
}

.log li[data-kind="warn"] {
  color: color-mix(in srgb, var(--warn) 60%, var(--ink));
}

.log li[data-kind="err"] {
  color: var(--stop-lift);
}

.log li[data-kind="go"] {
  color: var(--go-lift);
}

/* ── Responsive ─────────────────────────────────────────────────────────── */
@media (max-width: 62rem) {
  .deck {
    grid-template-columns: 1fr;
  }

  .util {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .card--util {
    flex: 1 1 15rem;
  }
}

@media (max-width: 40rem) {
  body {
    padding: 0.5rem;
  }

  .rail {
    justify-content: flex-start;
  }

  .rail__tele {
    gap: 0.9rem;
    order: 3;
    width: 100%;
  }

  .slots__grid {
    grid-template-columns: 1fr;
  }

  .arm {
    padding: 1.1rem 0.7rem 0.9rem;
  }

  /* Pointer-only hint: keyboard stop is unreachable without a keyboard */
  .arm__panic {
    display: none;
  }
}

@media (hover: none) {
  .arm__panic {
    display: none;
  }
}

/* ── Reduced motion ─────────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

/* ── Forced colours: state must survive with no palette at all ──────────── */
@media (forced-colors: active) {
  .bezel,
  .slot,
  .rlist li,
  .glist li {
    border: 1px solid CanvasText;
  }

  .dot {
    border: 1px solid CanvasText;
  }
}