: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);
}

.btn-symbol {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 15px;
  color: var(--text-tertiary);
  cursor: pointer;
  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;
}

.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: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;
}