:root {
  /* S4 AR-core pass: retheme to the JARVIS AR HUD design language —
     cool cyan-tinted glass, cyan + amber accents, military-tech type.
     Every HUD component reads these tokens, so this reskins the whole app. */
  --glass-bg: rgba(10, 22, 30, 0.42);
  --glass-bg-hover: rgba(18, 34, 44, 0.55);
  --glass-bg-active: rgba(53, 230, 255, 0.14);
  --glass-border: rgba(120, 220, 255, 0.20);
  --glass-border-strong: rgba(120, 220, 255, 0.34);
  --glass-blur: 40px;
  --glass-saturate: 180%;
  --glass-radius: 18px;
  --glass-radius-sm: 12px;
  --glass-radius-lg: 26px;
  --glass-shadow: 0 14px 40px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(180, 240, 255, 0.12), 0 0 0 0.5px rgba(0, 0, 0, 0.35);
  --glass-shadow-deep: 0 22px 60px rgba(0, 0, 0, 0.6), inset 0 1px 0 rgba(180, 240, 255, 0.16);
  --accent: #35e6ff;
  --accent-glow: rgba(53, 230, 255, 0.35);
  --accent-pressed: #14c3e0;
  --amber: #ffb454;
  --amber-glow: rgba(255, 180, 84, 0.40);
  --text-primary: #dff3fb;
  --text-secondary: rgba(223, 243, 251, 0.62);
  --text-tertiary: rgba(125, 153, 166, 0.85);
  --text-placeholder: rgba(125, 153, 166, 0.5);
  --bg-dark: rgba(7, 15, 21, 0.86);
  --bg-darker: rgba(3, 7, 12, 0.94);
  --destructive: #ff5470;
  --destructive-glow: rgba(255, 84, 112, 0.38);
  --success: #5ce0a8;
  --warning: var(--amber);
  --separator: rgba(120, 220, 255, 0.12);
  --font: 'Chakra Petch', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
  --font-large-title: 700 34px/1.2 var(--font);
  --font-title1: 600 28px/1.3 var(--font);
  --font-title2: 600 22px/1.3 var(--font);
  --font-title3: 600 20px/1.4 var(--font);
  --font-headline: 600 17px/1.4 var(--font);
  --font-body: 400 17px/1.5 var(--font);
  --font-callout: 400 16px/1.5 var(--font);
  --font-subheadline: 400 15px/1.5 var(--font);
  --font-footnote: 400 13px/1.5 var(--font);
  --font-caption: 400 12px/1.4 var(--font);
  --letter-spacing-tight: 0;
  --letter-spacing-body: 0;
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100vw;
  height: 100vh;
  margin: 0;
  overflow: hidden;
  background: var(--bg-darker);
  color: var(--text-primary);
  font-family: var(--font);
  letter-spacing: 0;
  touch-action: none;
  -webkit-font-smoothing: antialiased;
}

button,
input,
textarea,
select {
  font: inherit;
}

button {
  -webkit-tap-highlight-color: transparent;
}

#camerafeed {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  z-index: 0;
  background: var(--bg-darker);
}

#ar-scene {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: 1;
  background: transparent !important;
}

#css3d-layer {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: 2;
  pointer-events: none;
  overflow: hidden;
  transform-style: preserve-3d;
}

#hand-overlay {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: 4;
  pointer-events: none;
}

#world-label-layer {
  position: fixed;
  inset: 0;
  z-index: 5;
  pointer-events: none;
}

#ui-layer {
  position: fixed;
  inset: 0;
  z-index: 10;
  pointer-events: none;
  overflow: hidden;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}

.glass-panel {
  background: var(--glass-bg);
  backdrop-filter: blur(28px) saturate(1.35);
  -webkit-backdrop-filter: blur(28px) saturate(1.35);
  border: 1px solid var(--glass-border);
  border-radius: var(--glass-radius);
  box-shadow: var(--glass-shadow);
  position: relative;
  overflow: hidden;
}

.glass-panel::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.28) 0%, rgba(255, 255, 255, 0.08) 30%, rgba(255, 255, 255, 0.015) 60%, rgba(0, 0, 0, 0.08) 100%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  z-index: 1;
}

.glass-panel > * {
  position: relative;
  z-index: 2;
}

.vibrancy-text {
  color: var(--text-primary);
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.6), 0 0 8px rgba(0, 0, 0, 0.3);
}

.btn-primary {
  min-width: 120px;
  min-height: 50px;
  padding: 14px 28px;
  border: 0;
  border-radius: 50px;
  background: var(--accent);
  color: var(--text-primary);
  font: var(--font-headline);
  cursor: pointer;
  transition: background 0.1s, transform 0.1s;
}

.btn-primary:active {
  background: var(--accent-pressed);
  transform: scale(0.97);
}

/* Mode selector — Claude Design `hud/mode-toolbar`. Was a 60x60 square holding one letter;
   it is now a stacked icon + permanent label, because the phone this targets has no hover
   and the tooltip-only label was therefore unreadable in practice. */
.btn-symbol {
  position: relative;
  flex: 0 0 auto;
  width: 60px;
  min-height: 62px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 15px;
  color: var(--text-tertiary);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease,
    box-shadow 0.18s ease, transform 0.09s ease;
}

.btn-symbol .icon {
  min-width: 24px;
  min-height: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.btn-symbol .icon svg {
  display: block;
  width: 23px;
  height: 23px;
}

.btn-label {
  font-family: var(--font-mono, ui-monospace, monospace);
  font-size: 8.5px;
  font-weight: 600;
  letter-spacing: 0.13em;
  line-height: 1;
  text-transform: uppercase;
  white-space: nowrap;
}

/* A tap has no physical resistance to confirm it, so the press answers inside the 100ms
   feedback budget spatial interfaces need. */
.btn-symbol:active {
  transform: scale(0.94);
}

.btn-symbol:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Selection is shape-encoded as well as coloured — a notch on the top edge — so it survives
   a colourblind viewer and a phone screen washed out in sunlight. */
.btn-symbol.selected::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 50%;
  width: 18px;
  height: 2px;
  border-radius: 0 0 3px 3px;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent-glow);
  transform: translateX(-50%);
}

@media (prefers-reduced-motion: reduce) {
  .btn-symbol { transition: none; }
  .btn-symbol:active { transform: none; }
}

.btn-symbol:hover {
  background: rgba(53, 230, 255, 0.08);
  color: var(--text-primary);
}

.btn-symbol:active {
  background: var(--glass-bg-active);
}

.btn-symbol.selected {
  background: rgba(53, 230, 255, 0.14);
  border-color: var(--glass-border-strong);
  color: var(--accent);
  box-shadow: 0 0 22px var(--accent-glow);
}

.panel-close {
  position: absolute;
  top: 12px;
  left: 12px;
  width: 52px;
  height: 52px;
  padding: 0;
  margin: -8px;
  background: var(--destructive);
  border: 0;
  border-radius: 50%;
  cursor: pointer;
  z-index: 10;
}

.ornament {
  position: absolute;
  bottom: -56px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: 50px;
  box-shadow: var(--glass-shadow);
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 8px;
  white-space: nowrap;
}

.panel-drag-handle {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 56px;
  cursor: grab;
  border-radius: var(--glass-radius) var(--glass-radius) 0 0;
  z-index: 5;
}

.panel-drag-handle:active {
  cursor: grabbing;
}

.panel-resize-handle {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 40px;
  height: 40px;
  cursor: se-resize;
  background: linear-gradient(135deg, transparent 50%, rgba(255, 255, 255, 0.2) 50%);
  border-radius: 0 0 var(--glass-radius) 0;
  z-index: 5;
}

body.vision-pro-reduced-motion .glass-panel {
  backdrop-filter: blur(18px) saturate(1.15);
  -webkit-backdrop-filter: blur(18px) saturate(1.15);
}

body.vision-pro-reduced-motion .glass-panel::before {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.18) 0%, rgba(255, 255, 255, 0.05) 30%, rgba(255, 255, 255, 0.01) 60%, rgba(0, 0, 0, 0.05) 100%);
}

body.vision-pro-reduced-motion .btn-primary,
body.vision-pro-reduced-motion .btn-symbol,
body.vision-pro-reduced-motion .panel-close {
  transition: none;
}

body.vision-pro-reduced-motion .panel-drag-handle {
  cursor: default;
}


/* Part 41 Claude Design pass: webar/info-model-panel.html.
   .panel-close was a 52px solid var(--destructive) circle containing no glyph at all, so
   the only close affordance on an AR panel read as a warning indicator. It also sat
   top-left while .panel-minimize sat top-right in the header — two controls of the same
   kind in two different places, at two different sizes.

   Now: same size and shape as minimise, a real glyph, and destructive intent expressed on
   press rather than as a permanent red blob. Kept at a 44px hit target, which is the
   touch-on-glass minimum spatial-design-principles.md §3 asks for. */
.panel-close {
  position: absolute;
  top: 12px;
  right: 12px;
  left: auto;
  width: 44px;
  height: 44px;
  margin: 0;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--text-primary);
  font: 400 20px/1 var(--font);
}

.panel-close:hover,
.panel-close:focus-visible {
  background: rgba(255, 59, 48, 0.18);
  border-color: rgba(255, 59, 48, 0.5);
  color: var(--destructive);
}

.panel-close:active {
  transform: scale(0.94);
}

/* Minimise moves left of close so the two sit together, same size, same shape. */
.ar-panel header {
  padding-left: 8px;
  padding-right: 96px;
}

.panel-minimize {
  position: absolute;
  top: 12px;
  right: 62px;
  width: 44px;
  height: 44px;
  flex: 0 0 44px;
  display: grid;
  place-items: center;
  border-radius: 12px;
}

/* Part 41 Claude Design pass: webar/world-labels.html.
   #world-label-layer had existed since the AR work began with NO writer at all, while
   ar-vision.js dispatched ar-object-detections every frame with NO listener. These are the
   styles for the consumer that finally connects them (ar-core/ar-world-labels.js). */
.world-label {
  position: absolute;
  transform: translate(-50%, -100%);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  padding: 5px 9px;
  border-radius: 8px;
  background: rgba(6, 12, 18, 0.82);
  backdrop-filter: blur(10px) saturate(140%);
  border: 1px solid rgba(0, 229, 255, 0.32);
  font: 500 11.5px/1 var(--font);
  letter-spacing: 0.02em;
  color: var(--text-primary);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.5);
  /* The layer itself is pointer-events:none, but state this here too: a label must never
     eat a tap meant for the scene behind it. */
  pointer-events: none;
}

/* The stem ties the label to its object, so it never reads as floating chrome. */
.world-label::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  width: 1px;
  height: 10px;
  background: linear-gradient(180deg, rgba(0, 229, 255, 0.7), transparent);
}

/* Confidence as a bar, never a percentage — "86%" is engine vocabulary and a subscriber
   cannot act on the difference between 86 and 91. */
.world-label-conf {
  width: 22px;
  height: 3px;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.18);
  overflow: hidden;
}

.world-label-conf i {
  display: block;
  height: 100%;
  background: var(--accent);
}

/* Low confidence goes quieter rather than vanishing — honest about uncertainty instead of
   silently dropping a guess the detector actually made. */
.world-label.low {
  border-color: rgba(255, 255, 255, 0.16);
  opacity: 0.72;
}

.world-label.low b {
  color: var(--text-secondary);
}