/* Helios Web Control - "consola profesional" theme.
   Flat chrome (1px borders, 4-8 px radii); glow only inside the laser preview and on the armed state.
   Layouts: phone portrait (default), phone landscape, tablet / small laptop (two columns), desktop (three). */
:root {
  /* palette */
  --bg: #0d0f12;
  --panel: #15181d;
  --panel-2: #1c2026;
  --border: #2a2f37;
  --border-strong: #3b414b;
  --hover: #22272e;
  --press: #282e36;
  --inset: #090b0d; /* wells: slider tracks, readouts, inputs */
  --text: #e6e8eb;
  --muted: #8b93a1;
  --faint: #5d6471;
  --accent: #4cc3ff;
  --accent-ink: #04131b;
  --accent-soft: rgba(76, 195, 255, 0.14);
  --accent-line: rgba(76, 195, 255, 0.55);
  --live: #ff3b30;
  --live-soft: rgba(255, 59, 48, 0.14);
  --live-line: rgba(255, 59, 48, 0.5);
  --live-fill: #d92d20; /* fill under white labels (4.8:1); --live stays for borders, glow and dots */
  --live-fill-hover: #c0271d; /* 5.9:1 */
  --ok: #34c759;
  --warn: #ffb020;
  --warn-soft: rgba(255, 176, 32, 0.1);
  --warn-line: rgba(255, 176, 32, 0.45);
  /* spacing scale */
  --s1: 4px;
  --s2: 8px;
  --s3: 12px;
  --s4: 16px;
  --s5: 24px;
  /* shape */
  --r-sm: 4px;
  --r: 6px;
  --r-lg: 8px;
  --hit: 44px;
  --strip-h: 40px;
  --font:
    system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial,
    sans-serif;
  --mono:
    ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  /* safe areas */
  --sat: env(safe-area-inset-top, 0px);
  --sab: env(safe-area-inset-bottom, 0px);
  --sal: env(safe-area-inset-left, 0px);
  --sar: env(safe-area-inset-right, 0px);
  /* the visible height (dynamic viewport where supported: mobile browser bars) */
  --vh100: 100vh;
  /* Phone portrait, tall screens (> 760 px). Fixed rows (--chrome-v): strip 41 + stage 186 (padding 16, arm 52,
     colours 50, TAP / effect row 44, three 8 px gaps) + tab bar 55 = 282 px. The panel keeps 280 px and the preview
     takes the rest (at least 200 px). Shorter screens use the layout of the max-height: 760px block below. */
  --chrome-v: 282px;
  --pv: min(
    calc(100vw - 24px - var(--sal) - var(--sar)),
    max(
      200px,
      calc(var(--vh100) - var(--chrome-v) - 280px - var(--sat) - var(--sab))
    )
  );
  --panel-h: calc(
    var(--vh100) - var(--pv) - var(--chrome-v) - var(--sat) - var(--sab)
  );
  color-scheme: dark;
}
@supports (height: 100dvh) {
  :root {
    --vh100: 100dvh;
  }
}
* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}
html,
body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  overscroll-behavior: none;
  touch-action: manipulation;
}
body {
  position: fixed;
  inset: 0;
  overflow: hidden;
  font: 14px/1.4 var(--font);
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
  -webkit-text-size-adjust: 100%;
}
button,
input {
  font: inherit;
  color: inherit;
}
button {
  cursor: pointer;
}
button:disabled {
  cursor: not-allowed;
}
svg {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}
[hidden] {
  display: none !important;
}
/* visible keyboard focus everywhere; no ring for pointer focus */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
:focus:not(:focus-visible) {
  outline: none;
}

/* ---------- app grid: phone portrait ---------- */
#app {
  height: 100%;
  height: 100dvh;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  grid-template-rows: auto auto minmax(0, 1fr) auto;
  grid-template-areas: "strip" "stage" "panel" "tabs";
  padding-left: var(--sal);
  padding-right: var(--sar);
}
.ctrl {
  display: contents; /* phones: the tab bar and the panel are placed in the app grid directly */
}

/* ---------- status strip ---------- */
.strip {
  grid-area: strip;
  display: flex;
  align-items: center;
  gap: var(--s2);
  min-width: 0;
  min-height: calc(var(--strip-h) + var(--sat));
  padding: var(--sat) var(--s3) 0;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  font-size: 12px;
  white-space: nowrap;
}
.brand {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: none;
  font-size: 13px;
  font-weight: 650;
  letter-spacing: 0.14em;
}
.brand svg {
  width: 16px;
  height: 16px;
  color: var(--accent);
  stroke-width: 2;
}
.conn {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  flex: none;
}
.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--live);
}
body:not(.offline) .dot {
  background: var(--ok);
}
body:not(.offline) #conn-label {
  display: none;
}
.badge {
  /* A button (it opens Ajustes): a 44 px tall touch target; ::before draws the small chip in its middle, and the
     negative margins keep the strip at its height (the target reaches 2 px past it, above the stage's padding). */
  position: relative;
  z-index: 1;
  min-width: 0;
  max-width: 34vw;
  min-height: var(--hit);
  margin: -12px 0;
  padding: 0 7px;
  border: 0;
  background: none;
  color: var(--text);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.badge::before {
  content: "";
  position: absolute;
  z-index: -1;
  left: 0;
  right: 0;
  top: calc(50% - 0.7em - 3px);
  height: calc(
    1.4em + 6px
  ); /* one line of text + 2 px padding + 1 px border, each side */
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  background: var(--panel-2);
}
.badge:focus-visible {
  outline: none;
}
.badge:focus-visible::before {
  outline: 2px solid var(--accent);
  outline-offset: -2px; /* inside the chip: the button's overflow (for the ellipsis) would clip the sides */
}
.badge:hover::before {
  border-color: var(--accent);
}
.badge.sim {
  color: var(--warn);
}
.badge.sim::before {
  border-color: var(--warn-line);
}
.badge.real {
  color: var(--ok);
}
.badge.real::before {
  border-color: rgba(52, 199, 89, 0.45);
}
.strip-fill {
  flex: 1;
  min-width: 0;
}
.stat {
  flex: none;
  color: var(--muted);
  font: 11px/1 var(--mono);
  font-variant-numeric: tabular-nums;
}
.stat b {
  color: var(--text);
  font-weight: 500;
}
.sep {
  margin: 0 5px;
  color: var(--faint);
}
.arm-state {
  flex: none;
  padding: 3px 7px;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  color: var(--muted);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.08em;
}
.arm-state.live {
  border-color: var(--live);
  background: var(--live-fill);
  color: #fff;
  box-shadow: 0 0 10px rgba(255, 59, 48, 0.6);
}
body.offline .arm-state {
  display: none; /* the connection label says it */
}

/* ---------- stage: preview, arm, live bar ---------- */
.stage {
  grid-area: stage;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--s2);
  min-width: 0;
  padding: var(--s2) var(--s3);
}
.banner {
  position: absolute;
  z-index: 5;
  top: var(--s2);
  left: var(--s3);
  right: var(--s3);
  padding: 10px var(--s3);
  border: 1px solid var(--live);
  border-radius: var(--r-lg);
  background: #2a1210;
  color: #ffd6d3;
  font-weight: 600;
  text-align: center;
}
.preview-wrap {
  position: relative;
  flex: none;
  width: var(--pv);
  height: var(--pv);
  border: 1px solid var(--border);
  border-radius: var(--r);
  background: #000;
  overflow: hidden;
  transition:
    border-color 0.2s,
    box-shadow 0.2s;
}
#preview {
  display: block;
  width: 100%;
  height: 100%;
}
.live-tag {
  position: absolute;
  top: var(--s2);
  left: var(--s2);
  display: none;
  align-items: center;
  gap: 5px;
  padding: 3px 7px;
  border: 1px solid var(--live);
  border-radius: var(--r-sm);
  background: var(--live-fill);
  color: #fff;
  font-size: 10.5px;
  font-weight: 800;
  letter-spacing: 0.1em;
  box-shadow: 0 0 12px rgba(255, 59, 48, 0.6);
}
/* the label stays steady (readable); only its dot blinks, with opacity, which the compositor animates */
.live-tag::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #fff;
  animation: dot 1.2s infinite;
}
/* Scan-area label: bottom-left corner inside the dashed scan rectangle drawn on the canvas (--scan = scanSize).
   The max-width keeps it inside the preview; app.js picks the longest form that fits it (the ellipsis is a fallback). */
.scan-label {
  position: absolute;
  left: calc((1 - var(--scan, 1)) * 50% + 6px);
  bottom: calc((1 - var(--scan, 1)) * 50% + 5px);
  max-width: calc((1 + var(--scan, 1)) * 50% - 8px);
  overflow: hidden; /* for the ellipsis; the line height leaves room for capital accents (Á) */
  color: var(--muted);
  font: 600 10px/1.5 var(--font);
  letter-spacing: 0.08em;
  font-variant-numeric: tabular-nums;
  text-overflow: ellipsis;
  white-space: nowrap;
  pointer-events: none;
}
.scan-label.outside {
  left: 0;
  right: 0;
  bottom: auto;
  top: calc((1 + var(--scan, 1)) * 50% + 5px);
  max-width: none;
  text-align: center;
}
/* Beam safety blanked the current frame: nothing is emitted even when armed. */
.blank-badge {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  width: max-content;
  max-width: calc(100% - 16px);
  margin: 0 auto;
  transform: translateY(-50%);
  padding: 6px 10px;
  border: 1px solid var(--warn);
  border-radius: var(--r);
  background: rgba(13, 15, 18, 0.88);
  color: var(--warn);
  font-size: 11px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: 0.08em;
  text-align: center;
  pointer-events: none;
}
.preview-wrap.compact .blank-badge {
  padding: 5px 8px;
  font-size: 10px;
  letter-spacing: 0.04em;
}
body.armed .preview-wrap {
  border-color: var(--live);
  box-shadow:
    0 0 0 1px var(--live),
    0 0 22px rgba(255, 59, 48, 0.45);
}
body.armed .live-tag {
  display: flex;
}
@keyframes blink {
  50% {
    opacity: 0.55;
  }
}
@keyframes dot {
  50% {
    opacity: 0.2;
  }
}

/* arm / blackout: the one control that is always on screen. Phones: the arm, the quick colours and the live bar
   span the stage (the width of the panel content below); the square preview is centred above them. */
.arm,
.quick-colors,
.livebar {
  width: 100%;
  max-width: 100%;
}
.arm {
  position: relative;
  flex: none;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 52px;
  padding: 6px var(--s4);
  overflow: hidden;
  border: 1px solid var(--border-strong);
  border-radius: var(--r-lg);
  background: var(--panel-2);
  color: var(--text);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1.25;
  text-align: center;
  touch-action: none;
  --p: 0;
}
.arm-fill {
  position: absolute;
  inset: 0;
  transform-origin: left;
  transform: scaleX(var(--p));
  background: rgba(255, 59, 48, 0.32);
}
.arm-icon,
.arm-label {
  position: relative;
}
.arm-icon svg {
  display: block;
  width: 20px;
  height: 20px;
  color: var(--live);
  stroke-width: 2.4;
}
.arm.pending {
  border-color: var(--live);
}
/* Armed: a deep red fill under the white label (contrast) and a steady glow. No animation here: a box-shadow
   animation repaints on the main thread every frame, which the WebUSB output loop shares. */
body.armed .arm {
  border-color: var(--live);
  background: var(--live-fill);
  color: #fff;
  box-shadow: 0 0 24px rgba(255, 59, 48, 0.6);
}
body.armed .arm-icon svg {
  color: #fff;
}
body.armed .arm-fill {
  display: none;
}
body.offline .arm {
  border-color: var(--border);
  background: var(--panel);
  color: var(--muted);
  box-shadow: none;
  pointer-events: none;
}
body.offline .arm-icon svg {
  color: var(--faint);
}

.kbd-hint {
  display: none;
  order: 3; /* under the live bar */
  margin: var(--s1) 0 0;
  color: var(--muted);
  font-size: 12px;
  text-align: center;
}

/* live bar: quick colours (one row of 8; the buttons touch, the swatch inset is the visual gap, so each target is
   as wide as the row allows), then TAP + BPM and the effect chip */
.livebar {
  flex: none;
  display: flex;
  gap: var(--s2);
}
.quick-colors {
  flex: none;
  display: flex;
  padding: 2px;
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  background: var(--panel);
}
.quick-colors button,
.swatches button {
  position: relative;
  min-width: 0;
  padding: 5px;
  border: 0;
  border-radius: var(--r);
  background: none;
}
.quick-colors button {
  flex: 1 1 0;
  height: var(--hit);
}
.quick-colors button::before,
.swatches button::before {
  content: "";
  display: block;
  height: 100%;
  border-radius: var(--r-sm);
  background: var(--sw);
}
.quick-colors button.on,
.swatches button.on {
  box-shadow: inset 0 0 0 2px var(--accent);
}
.live-tap,
.fx-chip {
  display: flex;
  align-items: center;
  gap: var(--s2);
  min-width: 0;
  min-height: var(--hit);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  background: var(--panel-2);
}
.live-tap {
  flex: 1 1 0;
  justify-content: space-between;
  padding: 0 var(--s3);
  touch-action: manipulation;
}
.lt-key {
  font-size: 13px;
  font-weight: 750;
  letter-spacing: 0.14em;
}
.lt-read {
  color: var(--muted);
  font: 11px/1 var(--mono);
  font-variant-numeric: tabular-nums;
}
.lt-read b {
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
}
.fx-chip {
  flex: 1.35 1 0;
  padding: 0 var(--s2) 0 var(--s3);
  text-align: left;
}
.fx-text {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}
.fx-key {
  color: var(--muted);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.fx-name {
  overflow: hidden;
  font-size: 13px;
  font-weight: 600;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.fx-chip.on .fx-name {
  color: var(--accent);
}
.fx-chip svg {
  flex: none;
  width: 16px;
  height: 16px;
  color: var(--muted);
}
.fx-chip.open {
  border-color: var(--accent-line);
}

/* ---------- shared controls ---------- */
.btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--s2);
  min-height: var(--hit);
  padding: 0 var(--s3);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  background: var(--panel-2);
  color: var(--text);
  font-size: 13px;
  font-weight: 600;
}
.btn svg {
  flex: none;
  width: 18px;
  height: 18px;
}
.btn.compact {
  flex: none;
  padding: 0 var(--s3);
}
.btn.danger {
  border-color: var(--live-line);
  color: #ff7a72;
}
.btn.primary {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--accent-ink);
}
.btn.wide {
  width: 100%;
  margin-top: var(--s2);
}
.btn:disabled {
  opacity: 0.42;
}
#save-mode[aria-pressed="true"] {
  border-color: var(--warn);
  background: var(--warn-soft);
  color: var(--warn);
}
/* pressed feedback (touch and mouse) */
.btn:active:not(:disabled),
.live-tap:active,
.fx-chip:active,
.chips button:active,
.seg button:active,
.round:active,
.tap:active {
  background: var(--press);
}
.btn.primary:active:not(:disabled) {
  background: #3aa9e0;
}
@media (hover: hover) {
  .btn:hover:not(:disabled),
  .live-tap:hover,
  .fx-chip:hover,
  .chips button:hover,
  .round:hover,
  .custom-color:hover,
  .arm:hover {
    border-color: var(--border-strong);
    background: var(--hover);
  }
  .btn.primary:hover:not(:disabled) {
    border-color: #6fd0ff;
    background: #6fd0ff;
  }
  .seg button:not(.on):hover {
    background: var(--hover);
    color: var(--text);
  }
  .tabbar button:not([aria-selected="true"]):hover {
    color: var(--text);
  }
  .quick-colors button:not(.on):hover,
  .swatches button:not(.on):hover {
    box-shadow: inset 0 0 0 2px var(--border-strong);
  }
  body.armed .arm:hover {
    border-color: var(--live);
    background: var(
      --live-fill-hover
    ); /* darker, never lighter: the label keeps its contrast */
  }
}

/* ---------- cues ---------- */
.cues-pane {
  grid-area: panel;
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  padding: var(--s3) var(--s3) var(--s4);
  border-top: 1px solid var(--border);
  background: var(--panel);
}
.pane-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s2);
  margin-bottom: var(--s3);
}
h2 {
  margin: 0;
  font-size: 14px;
  font-weight: 650;
  letter-spacing: 0.02em;
}
.hint {
  margin: 0 0 var(--s3);
  color: var(--muted);
  font-size: 13px;
}
.hint.small {
  margin: var(--s3) 0 0;
  font-size: 12px;
  text-align: center;
}
#save-hint {
  padding: var(--s2) var(--s3);
  border: 1px solid var(--warn-line);
  border-radius: var(--r);
  background: var(--warn-soft);
  color: #f3dcae;
}
/* tile = live thumbnail (thumbs.js; the pattern glyph until it loads) + number and name */
.cue-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--s2);
}
.cue {
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 64px;
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--r);
  background: var(--panel-2);
  text-align: left;
  -webkit-touch-callout: none;
  touch-action: manipulation;
}
.cue .art {
  position: relative;
  display: block;
  aspect-ratio: 4 / 3;
  border-bottom: 1px solid var(--border);
  background: #000;
}
.cue .glyph {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.cue .glyph svg {
  width: 24px;
  height: 24px;
  color: var(--c, var(--accent));
}
.cue .thumb {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
}
.cue .meta {
  display: flex;
  align-items: baseline;
  gap: 5px;
  min-width: 0;
  padding: 4px 6px 5px;
}
.cue .num {
  flex: none;
  color: var(--muted);
  font: 10px/1.2 var(--mono);
  font-variant-numeric: tabular-nums;
}
.cue .name {
  min-width: 0;
  overflow: hidden;
  font-size: 11px;
  font-weight: 600;
  line-height: 1.2;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.cue.empty {
  border-style: dashed;
  background: transparent;
  color: var(--muted);
}
.cue.empty .art {
  visibility: hidden;
  border-bottom-color: transparent;
}
.cue.empty .num {
  color: var(--muted);
}
.cue.empty .name {
  font-weight: 400;
}
/* selection / focus ring drawn over the thumbnail, so it does not resize the canvas (only on the tiles that show
   one: an overlay on every tile would add a layer above each thumbnail canvas) */
.cue.active::after,
.cue:focus-visible::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
}
.cue.active {
  border-color: var(--accent);
}
.cue.active::after {
  box-shadow: inset 0 0 0 1px var(--accent);
}
.cue.active .meta {
  background: var(--accent-soft);
}
.cue.active .name {
  color: var(--accent);
}
.cue:focus-visible {
  outline: none;
}
.cue:focus-visible::after {
  box-shadow:
    inset 0 0 0 2px var(--accent),
    inset 0 0 0 3px #000;
}
.cue:active {
  transform: scale(0.97);
}
@media (hover: hover) {
  .cue:not(.active):hover {
    border-color: var(--border-strong);
  }
}
.saving .cue {
  border-style: dashed;
  border-color: var(--warn);
  animation: blink 1.3s infinite;
}

/* ---------- tab bar ---------- */
.tabbar {
  grid-area: tabs;
  display: flex;
  padding-bottom: var(--sab);
  border-top: 1px solid var(--border);
  background: var(--panel);
}
.tabbar button {
  position: relative;
  flex: 1 1 0;
  min-width: 0;
  min-height: 54px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  border: 0;
  background: none;
  color: var(--muted);
  font-size: 10.5px;
  font-weight: 600;
}
.tabbar button:focus-visible {
  outline-offset: -3px;
}
.tabbar svg {
  width: 21px;
  height: 21px;
  stroke-width: 1.7;
}
.tabbar button[aria-selected="true"] {
  color: var(--accent);
}
.tabbar button[aria-selected="true"]::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 22%;
  right: 22%;
  height: 2px;
  border-radius: 0 0 2px 2px;
  background: var(--accent);
}

/* ---------- control panel ---------- */
.panel {
  grid-area: panel;
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  padding: 0 var(--s3) var(--s5);
  border-top: 1px solid var(--border);
  background: var(--panel);
}
body.offline .panel,
body.offline .cues-pane,
body.offline .quick-colors,
body.offline .livebar {
  opacity: 0.4;
  pointer-events: none;
}
.page {
  max-width: 640px;
  margin: 0 auto;
}
/* section labels */
h3 {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--s2);
  margin: var(--s5) 0 var(--s2);
  color: var(--muted);
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.page > h3:first-child {
  margin-top: var(--s4);
}
.h-note {
  color: var(--muted);
  font-weight: 500;
  letter-spacing: 0;
  text-transform: none;
  font-variant-numeric: tabular-nums;
}

/* chips (patterns, effects) */
.chips {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(92px, 1fr));
  gap: 6px;
}
.chips button {
  min-width: 0;
  min-height: var(--hit);
  padding: 6px 8px;
  border: 1px solid var(--border);
  border-radius: var(--r);
  background: var(--panel-2);
  font-size: 13px;
  font-weight: 500;
}
.glyph-chips {
  grid-template-columns: repeat(auto-fill, minmax(76px, 1fr));
}
.glyph-chips button {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  min-height: 60px;
  font-size: 11.5px;
}
.glyph-chips svg {
  width: 22px;
  height: 22px;
  color: var(--muted);
}
.chips button.on {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent);
}
.glyph-chips button.on svg {
  color: var(--accent);
}

/* segmented controls (enums) */
.seg {
  display: flex;
  gap: 2px;
  padding: 2px;
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  background: var(--inset);
}
.seg button {
  flex: 1 1 0;
  min-width: 0;
  min-height: var(--hit);
  padding: 0 var(--s1);
  border: 0;
  border-radius: var(--r);
  background: transparent;
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
}
.seg button.on {
  background: var(--panel-2);
  color: var(--accent);
  box-shadow: inset 0 0 0 1px var(--accent-line);
}
.seg.wrap {
  flex-wrap: wrap;
}
.seg.wrap button {
  flex: 1 1 40%;
}

/* sliders: label + readout, then the track */
.slider {
  display: block;
  margin: var(--s3) 0 0;
}
.sl-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s3);
  min-height: 22px;
  font-size: 13px;
}
.sl-head small {
  display: block;
  color: var(--muted);
  font-size: 11px;
}
.sl-head output {
  flex: none;
  min-width: 58px;
  padding: 2px 6px;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  background: var(--inset);
  color: var(--text);
  font: 12px/1.3 var(--mono);
  font-variant-numeric: tabular-nums;
  text-align: right;
}
.slider.safety output {
  border-color: var(--warn-line);
  color: var(--warn);
}
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  display: block;
  width: 100%;
  height: 34px;
  margin: 0;
  background: transparent;
  --a: 0%;
  --b: 0%;
  --t: var(--accent);
}
.slider.safety input[type="range"] {
  --t: var(--warn);
}
input[type="range"]::-webkit-slider-runnable-track {
  height: 4px;
  border-radius: 2px;
  background: linear-gradient(
    90deg,
    var(--border) var(--a),
    var(--t) var(--a),
    var(--t) var(--b),
    var(--border) var(--b)
  );
}
input[type="range"]::-moz-range-track {
  height: 4px;
  border-radius: 2px;
  background: linear-gradient(
    90deg,
    var(--border) var(--a),
    var(--t) var(--a),
    var(--t) var(--b),
    var(--border) var(--b)
  );
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  margin-top: -7px;
  border: 2px solid var(--t);
  border-radius: 50%;
  background: var(--text);
}
input[type="range"]::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border: 2px solid var(--t);
  border-radius: 50%;
  background: var(--text);
}
input[type="range"]:focus-visible {
  outline: none;
}
input[type="range"]:focus-visible::-webkit-slider-thumb {
  box-shadow:
    0 0 0 4px var(--accent-soft),
    0 0 0 1px var(--accent);
}
input[type="range"]:focus-visible::-moz-range-thumb {
  box-shadow:
    0 0 0 4px var(--accent-soft),
    0 0 0 1px var(--accent);
}
@media (pointer: coarse) {
  input[type="range"] {
    height: var(--hit);
  }
  input[type="range"]::-webkit-slider-thumb {
    width: 24px;
    height: 24px;
    margin-top: -10px;
  }
}

/* switches */
.switch-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s3);
  min-height: 48px;
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}
.switch-row small {
  display: block;
  color: var(--muted);
  font-size: 12px;
}
.switch-row input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
}
.switch {
  position: relative;
  flex: none;
  width: 42px;
  height: 24px;
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  background: var(--inset);
  transition:
    background 0.15s,
    border-color 0.15s;
}
.switch::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--muted);
  transition: transform 0.15s;
}
.switch-row input:checked + .switch {
  border-color: var(--accent);
  background: var(--accent);
}
.switch-row input:checked + .switch::after {
  transform: translateX(18px);
  background: var(--accent-ink);
}
.switch-row input:focus-visible + .switch {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* XY pad */
.xy-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--s2);
}
.xy-pad {
  position: relative;
  width: min(100%, 240px);
  aspect-ratio: 1;
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  touch-action: none;
  background-color: #000;
  background-image:
    linear-gradient(90deg, rgba(139, 147, 161, 0.12) 1px, transparent 1px),
    linear-gradient(rgba(139, 147, 161, 0.12) 1px, transparent 1px);
  background-size: 12.5% 12.5%;
}
.xy-h,
.xy-v {
  position: absolute;
  background: rgba(139, 147, 161, 0.4);
}
.xy-h {
  left: 0;
  right: 0;
  top: 50%;
  height: 1px;
}
.xy-v {
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1px;
}
.xy-dot {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 22px;
  height: 22px;
  margin: -11px 0 0 -11px;
  border: 2px solid var(--accent);
  border-radius: 50%;
  background: var(--accent-soft);
  pointer-events: none;
}
.xy-read {
  color: var(--muted);
  font: 12px var(--mono);
  font-variant-numeric: tabular-nums;
}

/* colour */
.swatches {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 6px;
}
.swatches button {
  height: 48px;
  border: 1px solid var(--border);
  background: var(--panel-2);
}
.swatches button.on {
  border-color: var(--accent);
}
.custom-color {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--s3);
  min-height: 52px;
  margin-top: var(--s2);
  padding: 6px var(--s3);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  background: var(--panel-2);
}
.cc-preview {
  width: 28px;
  height: 28px;
  border-radius: var(--r-sm);
  background: var(--cc, #00ff00);
}
.cc-text {
  display: flex;
  flex-direction: column;
  font-size: 13px;
  font-weight: 600;
}
.cc-text output {
  color: var(--muted);
  font: 12px var(--mono);
  text-transform: uppercase;
}
.custom-color input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}
.custom-color:focus-within {
  border-color: var(--accent);
}

/* tempo */
.bpm-card {
  padding: var(--s3);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  background: var(--panel-2);
}
.bpm-read {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 6px;
}
.bpm-read output {
  font: 600 34px/1.1 var(--mono);
  font-variant-numeric: tabular-nums;
}
.bpm-read span {
  color: var(--muted);
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0.08em;
}
.bpm-row {
  display: flex;
  align-items: center;
  gap: var(--s2);
  margin: var(--s3) 0 var(--s1);
}
.round {
  flex: none;
  width: 52px;
  height: 52px;
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  background: var(--panel);
  font-size: 22px;
  line-height: 1;
}
.tap {
  flex: 1;
  height: 52px;
  border: 1px solid var(--accent-line);
  border-radius: var(--r-lg);
  background: var(--panel);
  color: var(--accent);
  font-size: 16px;
  font-weight: 750;
  letter-spacing: 0.18em;
  touch-action: manipulation;
}
.tap.flash,
.live-tap.flash {
  border-color: var(--accent);
  background: var(--accent-soft);
}
#fx-speed.dim {
  opacity: 0.45;
}

/* text */
.text-input {
  width: 100%;
  min-height: 52px;
  padding: 8px var(--s3);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  background: var(--inset);
  font-size: 20px;
  font-weight: 650;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  -webkit-user-select: text;
  user-select: text;
}
.text-input::placeholder {
  color: var(--faint);
}
.text-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

/* drawing: Deshacer / Borrar beside the heading (never below the fold: the pad blocks scroll gestures), the pad
   below fits the visible panel: 1 px border + 16 px margin + 44 px head + 12 px gap + slack = 80 px */
.draw-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s2);
  margin: var(--s4) 0 var(--s3);
}
.draw-head h3 {
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  min-width: 0;
  margin: 0;
}
.draw-tools {
  flex: none;
  display: flex;
  gap: var(--s2);
}
.draw-wrap {
  display: flex;
  justify-content: center;
}
.draw-canvas {
  display: block;
  width: min(100%, 340px, max(150px, calc(var(--panel-h) - 80px)));
  aspect-ratio: 1;
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  background: #000;
  touch-action: none;
}
.btn-row {
  display: flex;
  gap: var(--s2);
  margin-top: var(--s3);
}

/* settings */
.dac-list {
  margin: 0;
  padding: 0;
  list-style: none;
}
.dac-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s2);
  margin-bottom: 6px;
  padding: 10px var(--s3);
  border: 1px solid var(--border);
  border-radius: var(--r);
  background: var(--panel-2);
}
.dac-list li span {
  color: var(--muted);
  font: 11px var(--mono);
  text-transform: uppercase;
}
.safety-note {
  margin-top: var(--s5);
  padding: var(--s3) 14px;
  border: 1px solid var(--warn-line);
  border-radius: var(--r-lg);
  background: var(--warn-soft);
  color: #e9dfc9;
  font-size: 13px;
}
.safety-note strong {
  display: block;
  margin-bottom: var(--s1);
  color: var(--warn);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
kbd {
  padding: 0 5px;
  border: 1px solid var(--border-strong);
  border-radius: 3px;
  background: var(--panel-2);
  font: 11px var(--mono);
}

/* ---------- toast & modals ---------- */
.toast {
  position: fixed;
  z-index: 30;
  left: 50%;
  bottom: calc(var(--sab) + 70px);
  width: max-content;
  max-width: calc(100vw - 32px);
  transform: translateX(-50%);
  padding: 10px var(--s4);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-lg);
  background: var(--panel-2);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
  font-size: 13px;
  font-weight: 600;
  text-align: center;
  pointer-events: none; /* informational only: never blocks a control under it (above all the arm / blackout) */
}
.toast.error {
  border-color: var(--live);
  background: #2a1210;
  color: #ffd6d3;
}
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: var(--s4) var(--s4) calc(var(--s4) + var(--sab));
  background: rgba(0, 0, 0, 0.62);
}
.modal {
  width: min(100%, 420px);
  padding: var(--s4);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-lg);
  background: var(--panel);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.6);
}
.modal h4 {
  margin: 0 0 6px;
  font-size: 15px;
  font-weight: 650;
}
.modal p {
  margin: 0 0 var(--s3);
  color: var(--muted);
  font-size: 13px;
}
.modal input {
  width: 100%;
  min-height: var(--hit);
  margin-bottom: var(--s3);
  padding: 8px var(--s3);
  border: 1px solid var(--border);
  border-radius: var(--r);
  background: var(--inset);
  font-size: 16px;
  -webkit-user-select: text;
  user-select: text;
}
.modal input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.modal .btn-row {
  margin-top: var(--s1);
}
.modal .sheet {
  display: flex;
  flex-direction: column;
  gap: var(--s2);
}

/* ---------- narrow phones: keep the strip on one line ---------- */
@media (max-width: 420px) {
  .strip {
    gap: 6px;
    padding-left: 10px;
    padding-right: 10px;
  }
  .brand {
    gap: 5px;
    font-size: 12px;
    letter-spacing: 0.08em;
  }
  .strip-fill {
    display: none;
  }
  .stat-perf {
    margin-left: auto;
  }
  .badge {
    padding: 0 6px;
    font-size: 10.5px;
    letter-spacing: 0.02em;
  }
  .arm-state {
    padding: 3px 5px;
    letter-spacing: 0.04em;
  }
  .stat-perf {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 2px;
    font-size: 10px;
  }
  .stat-perf .sep {
    display: none;
  }
}
@media (max-width: 379px) {
  .brand-name {
    display: none; /* the mark stays, labelled "Helios Web Control" */
  }
}
@media (max-width: 359px) {
  .draw-tools .btn-label {
    display: none; /* icon buttons, named by their aria-label */
  }
}
@media (max-width: 330px) {
  .stat-bpm {
    display: none; /* the live bar shows the tempo */
  }
}

/* ---------- phone portrait, short screens (browser bars, small phones) ----------
   TAP and the effect chip move beside the preview (the room a height-limited square leaves), the colours stay in
   one row under the arm. Fixed rows (--chrome-v): strip 41 + stage 134 (padding 16, arm 52, colours 50, two 8 px
   gaps) + tab bar 55 = 230 px. The panel keeps 280 px on screens from ~650 px tall; below that the preview stops at
   a quarter of the height (130 px at least) and the panel gets the rest (about 200 px on a 360x560 screen).
   The query is the phone-portrait layout region (neither the phone-landscape nor the tablet query) up to 760 px. */
@media (max-width: 519px) and (max-height: 760px),
  (max-width: 599px) and (min-height: 520px) and (max-height: 760px) {
  :root {
    --chrome-v: 230px;
    --pv: min(
      calc(100vw - 24px - 128px - var(--sal) - var(--sar)),
      max(
        130px,
        calc(var(--vh100) * 0.25 - 10px),
        calc(var(--vh100) - var(--chrome-v) - 280px - var(--sat) - var(--sab))
      )
    );
  }
  .stage {
    display: grid;
    grid-template-columns: var(--pv) minmax(0, 1fr);
    grid-template-areas: "pv live" "arm arm" "qc qc";
    align-items: stretch;
  }
  .preview-wrap {
    grid-area: pv;
  }
  .arm {
    grid-area: arm;
  }
  .quick-colors {
    grid-area: qc;
  }
  .livebar {
    grid-area: live;
    flex-direction: column;
  }
  .live-tap,
  .fx-chip {
    flex: 1 1 0;
  }
  .draw-canvas {
    width: min(
      100%,
      340px,
      calc(var(--panel-h) - 80px)
    ); /* no 150 px floor: the panel is under 230 px here */
  }
}

/* ---------- phone landscape: preview + arm + live bar on the left, panels on the right ---------- */
@media (orientation: landscape) and (max-height: 519px) and (min-width: 520px) {
  :root {
    --side: 184px; /* 4 colours per row, 44 px each */
    --pv: max(
      140px,
      min(
        calc(var(--vh100) - 56px - var(--sat) - var(--sab)),
        calc(100vw - 340px - var(--side) - 32px - var(--sal) - var(--sar))
      )
    );
    --panel-h: calc(
      var(--vh100) - var(--strip-h) - 47px - var(--sat) - var(--sab)
    );
  }
  #app {
    grid-template-columns: auto minmax(0, 1fr);
    grid-template-rows: auto minmax(0, 1fr) auto;
    grid-template-areas: "strip strip" "stage panel" "stage tabs";
  }
  .stage {
    display: grid;
    grid-template-columns: var(--pv) var(--side);
    grid-template-rows: auto auto minmax(0, 1fr);
    grid-template-areas: "pv arm" "pv qc" "pv live";
    align-content: start;
    align-items: start;
    gap: var(--s2);
    padding: var(--s2) var(--s3) calc(var(--s2) + var(--sab));
    border-right: 1px solid var(--border);
  }
  /* the offline banner covers the preview only, never the arm beside it */
  .banner {
    right: auto;
    width: var(--pv);
  }
  .preview-wrap {
    grid-area: pv;
  }
  .arm {
    grid-area: arm;
    width: auto;
    min-height: 60px;
    padding: 6px 10px;
    font-size: 12px;
    letter-spacing: 0.06em;
  }
  .quick-colors {
    grid-area: qc;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    width: auto;
  }
  .livebar {
    grid-area: live;
    flex-direction: column;
    width: auto;
  }
  .cues-pane,
  .panel {
    border-top: 0;
  }
  .tabbar button {
    min-height: 46px;
    gap: 2px;
  }
  .tabbar svg {
    width: 19px;
    height: 19px;
  }
  .toast {
    /* over the panel column, clear of the stage */
    left: calc(
      (var(--pv) + var(--side) + 32px + var(--sal) + 100vw - var(--sar)) / 2
    );
    bottom: calc(var(--sab) + 58px);
    max-width: calc(
      100vw - var(--pv) - var(--side) - 64px - var(--sal) - var(--sar)
    );
  }
}
/* small phones in landscape (iPhone SE / 8 at 667x375): the preview is width-limited, so TAP and the effect chip go
   under it and the side column narrows to the arm and two colours per row, which lets the preview grow */
@media (orientation: landscape) and (max-height: 519px) and (min-width: 520px) and (max-width: 740px) {
  :root {
    --side: 150px;
    --pv: max(
      120px,
      min(
        calc(var(--vh100) - 56px - 104px - var(--sat) - var(--sab)),
        calc(100vw - 300px - var(--side) - 32px - var(--sal) - var(--sar))
      )
    );
  }
  .stage {
    grid-template-areas: "pv arm" "pv qc" "live qc";
  }
  .quick-colors {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- tablet / small laptop: two columns, cues always visible on the left ---------- */
@media (min-width: 600px) and (min-height: 520px) {
  :root {
    --colL: calc(50vw - (var(--sal) + var(--sar)) / 2);
    --pv: min(calc(var(--colL) - 32px), max(220px, calc(var(--vh100) - 560px)));
    --panel-h: calc(
      var(--vh100) - var(--strip-h) - 57px - var(--sat) - var(--sab)
    );
  }
  #app {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    grid-template-rows: auto auto minmax(0, 1fr);
    grid-template-areas: "strip strip" "stage ctrl" "cues ctrl";
  }
  .strip {
    gap: var(--s3);
    padding-left: var(--s4);
    padding-right: var(--s4);
  }
  .stat {
    font-size: 12px;
  }
  .arm-state {
    font-size: 11px;
  }
  .stage {
    padding: var(--s4) var(--s4) var(--s3);
  }
  .arm,
  .quick-colors,
  .livebar {
    width: max(var(--pv), 360px); /* at least 44 px per quick colour */
  }
  .arm {
    min-height: 56px;
    font-size: 14px;
  }
  .cues-pane {
    grid-area: cues;
    padding: var(--s3) var(--s4) var(--s4);
    border-top: 0;
    background: transparent;
  }
  .ctrl {
    grid-area: ctrl;
    display: flex;
    flex-direction: column;
    min-width: 0;
    min-height: 0;
    border-left: 1px solid var(--border);
    background: var(--panel);
  }
  .tabbar {
    flex: none;
    padding: 0 var(--s2);
    border-top: 0;
    border-bottom: 1px solid var(--border);
  }
  .tabbar [data-tab="cues"] {
    display: none;
  }
  .tabbar button {
    min-height: 56px;
    font-size: 11.5px;
  }
  .tabbar button[aria-selected="true"]::before {
    top: auto;
    bottom: -1px;
    left: 14%;
    right: 14%;
    border-radius: 2px 2px 0 0;
  }
  .panel {
    flex: 1;
    border-top: 0;
    padding: 0 var(--s5) var(--s5);
  }
  .toast {
    bottom: calc(var(--sab) + var(--s5));
  }
  .modal-backdrop {
    align-items: center;
  }
}
/* tablet in landscape: all 16 cues in two rows under the stage */
@media (orientation: landscape) and (min-width: 600px) and (max-width: 1099px) and (min-height: 520px) {
  .cue-grid {
    grid-template-columns: repeat(8, minmax(0, 1fr));
    gap: 6px;
  }
  .cue .num {
    display: none; /* narrow tiles: the name gets the room (the slot number is in its aria-label) */
  }
  .cue .meta {
    padding: 3px 5px 4px;
  }
  .cue .name {
    font-size: 10.5px;
  }
}

/* ---------- desktop: preview | cues | controls, all visible at once ---------- */
@media (min-width: 1100px) and (min-height: 520px) {
  :root {
    --colL: clamp(340px, 32vw, 520px);
    --colR: clamp(360px, 30vw, 460px);
    --pv: min(calc(var(--colL) - 32px), max(220px, calc(var(--vh100) - 272px)));
  }
  #app {
    grid-template-columns: var(--colL) minmax(0, 1fr) var(--colR);
    grid-template-rows: auto minmax(0, 1fr);
    grid-template-areas: "strip strip strip" "stage cues ctrl";
  }
  .stage {
    overflow-y: auto;
    border-right: 1px solid var(--border);
  }
  .arm,
  .quick-colors,
  .livebar {
    width: var(--pv);
  }
  .cues-pane {
    padding: var(--s4) var(--s5) var(--s5);
  }
  .cues-pane > * {
    max-width: 760px;
    margin-left: auto;
    margin-right: auto;
  }
  .cues-pane > .hint.small {
    margin-top: var(--s3);
  }
  .cue-grid {
    gap: var(--s3);
  }
  .cue .art {
    aspect-ratio: 1; /* larger thumbnails: the centre column has the height for it */
  }
  .cue .meta {
    padding: 6px 8px 7px;
  }
  .cue .num {
    font-size: 11px;
  }
  .cue .name {
    font-size: 12.5px;
  }
  .cue .glyph svg {
    width: 32px;
    height: 32px;
  }
}
@media (min-width: 1100px) and (min-height: 520px) and (hover: hover) and (pointer: fine) {
  .kbd-hint {
    display: block;
  }
}