:root {
  --brand: #993d39;
  --brand-dark: #5f221f;
  --ink: #ffffff;
  --panel: rgba(17, 18, 20, 0.74);
  --panel-strong: rgba(17, 18, 20, 0.88);
  --shadow: 0 14px 40px rgba(0, 0, 0, 0.28);
  --safe-top: max(14px, env(safe-area-inset-top));
  --safe-right: max(16px, env(safe-area-inset-right));
  --safe-bottom: max(20px, env(safe-area-inset-bottom));
  --safe-left: max(16px, env(safe-area-inset-left));
  --viewport-width: 100vw;
  --viewport-height: 100vh;
  --viewport-left: 0px;
  --viewport-top: 0px;
}

@supports (height: 100dvh) {
  :root {
    --viewport-height: 100dvh;
  }
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100vw !important;
  min-width: 100vw !important;
  max-width: 100vw !important;
  height: 100vh !important;
  min-height: 100vh !important;
  max-height: 100vh !important;
  margin: 0 !important;
  margin-left: 0 !important;
  margin-top: 0 !important;
  overflow: hidden;
  background: #111214;
  color: var(--ink);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body {
  position: fixed;
  inset: 0;
  touch-action: none;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  isolation: isolate;
}

.ar-app,
.ar-scene {
  position: fixed;
  inset: 0;
  width: 100vw !important;
  height: 100vh !important;
  margin: 0 !important;
  overflow: hidden !important;
}

.ar-app {
  z-index: 1;
  isolation: isolate;
}

.ar-scene {
  z-index: 10;
}

.ar-scene canvas,
#arScene canvas,
.a-canvas,
body > canvas {
  position: fixed !important;
  inset: 0 !important;
  width: 100vw !important;
  height: 100vh !important;
  margin: 0 !important;
  object-fit: cover !important;
  z-index: 10 !important;
}

#arjs-video,
body > video {
  position: fixed !important;
  inset: 0 !important;
  width: 100vw !important;
  height: 100vh !important;
  margin: 0 !important;
  transform: none !important;
  object-fit: cover !important;
  z-index: 0 !important;
}

.ar-ui {
  position: fixed;
  top: var(--viewport-top);
  left: var(--viewport-left);
  width: var(--viewport-width) !important;
  height: var(--viewport-height) !important;
  z-index: 2147483000 !important;
  pointer-events: none;
  transform: translateZ(0);
}

.top-bar {
  position: absolute;
  z-index: 2147483010 !important;
  top: var(--safe-top);
  left: 50%;
  width: min(720px, calc(100vw - var(--safe-left) - var(--safe-right)));
  transform: translateX(-50%);
  padding: 10px 18px 12px;
  border-top: 3px solid var(--brand);
  border-radius: 0 0 8px 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
  text-align: center;
  backdrop-filter: blur(10px);
}

.exhibit-state {
  min-height: 15px;
  margin: 0 0 3px;
  color: rgba(255, 255, 255, 0.74);
  font-size: 12px;
  font-weight: 650;
  letter-spacing: 0;
  line-height: 1.25;
  text-transform: uppercase;
}

.exhibit-state:empty {
  display: none;
}

.exhibit-title {
  margin: 0;
  color: #fff;
  font-size: clamp(18px, 4.2vw, 29px);
  font-weight: 760;
  letter-spacing: 0;
  line-height: 1.14;
  overflow-wrap: anywhere;
}

.scan-hint {
  position: absolute;
  z-index: 2147483010 !important;
  top: 50%;
  left: 50%;
  min-width: min(310px, calc(100vw - 48px));
  margin: 0;
  transform: translate(-50%, -50%);
  padding: 13px 18px;
  border-left: 4px solid var(--brand);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
  color: #fff;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.25;
  text-align: center;
  backdrop-filter: blur(10px);
}

.status-message {
  position: absolute;
  z-index: 2147483010 !important;
  left: 50%;
  bottom: calc(var(--safe-bottom) + 74px);
  width: min(520px, calc(100vw - var(--safe-left) - var(--safe-right)));
  margin: 0;
  transform: translateX(-50%);
  padding: 11px 14px;
  border-radius: 8px;
  background: var(--panel-strong);
  box-shadow: var(--shadow);
  color: #fff;
  font-size: 14px;
  font-weight: 650;
  line-height: 1.35;
  text-align: center;
}

.ar-page-links {
  position: absolute;
  z-index: 2147483020 !important;
  left: var(--safe-left);
  bottom: var(--safe-bottom);
  display: flex;
  gap: 8px;
  align-items: center;
  pointer-events: auto;
}

.ar-page-links a {
  min-height: 40px;
  padding: 10px 12px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-left: 3px solid var(--brand);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
  color: #fff;
  font-size: 13px;
  font-weight: 750;
  line-height: 1;
  text-decoration: none;
  backdrop-filter: blur(10px);
}

.ar-page-links a:active {
  transform: translateY(1px);
}

.controls {
  position: absolute;
  z-index: 2147483020 !important;
  right: var(--safe-right);
  bottom: var(--safe-bottom);
  display: flex;
  gap: 12px;
  align-items: center;
  pointer-events: auto;
}

.icon-button {
  display: inline-grid;
  width: 58px;
  height: 58px;
  place-items: center;
  border: 0;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: var(--shadow);
  color: #fff;
  cursor: pointer;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.icon-button:active {
  transform: translateY(1px) scale(0.98);
}

.icon-button:focus-visible {
  outline: 3px solid rgba(255, 255, 255, 0.86);
  outline-offset: 3px;
}

.icon-button[disabled] {
  cursor: not-allowed;
  opacity: 0.45;
}

.button-icon {
  display: block;
  width: 30px;
  height: 30px;
  fill: currentColor;
}

.pause-icon {
  display: none;
}

.audio-button.is-playing .play-icon {
  display: none;
}

.audio-button.is-playing .pause-icon {
  display: block;
}

.reset-button {
  background: rgba(17, 18, 20, 0.84);
}

.reset-button span {
  position: relative;
  display: block;
  width: 24px;
  height: 24px;
}

.reset-button span::before,
.reset-button span::after {
  position: absolute;
  top: 11px;
  left: 2px;
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background: #fff;
  content: "";
}

.reset-button span::before {
  transform: rotate(45deg);
}

.reset-button span::after {
  transform: rotate(-45deg);
}

.debug-panel {
  position: absolute;
  z-index: 2147483030 !important;
  top: var(--safe-top);
  left: var(--safe-left);
  width: min(430px, calc(100vw - var(--safe-left) - var(--safe-right)));
  max-height: calc(100vh - var(--safe-top) - var(--safe-bottom));
  margin: 0;
  padding: 12px;
  overflow: auto;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.78);
  color: #e9f2ef;
  font: 12px/1.42 ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
  pointer-events: auto;
  white-space: pre-wrap;
}

.noscript-message {
  position: fixed;
  inset: auto 16px 16px;
  z-index: 30;
  margin: 0;
  padding: 12px;
  border-radius: 8px;
  background: var(--panel-strong);
  color: #fff;
}

[hidden] {
  display: none !important;
}

@media (orientation: landscape) and (max-height: 520px) {
  .top-bar {
    padding: 8px 14px 9px;
  }

  .exhibit-title {
    font-size: clamp(16px, 3.2vw, 23px);
  }

  .scan-hint {
    top: 52%;
    font-size: 15px;
  }

  .icon-button {
    width: 52px;
    height: 52px;
  }

  .ar-page-links a {
    min-height: 36px;
    padding: 9px 10px;
    font-size: 12px;
  }
}

@media (max-width: 420px) {
  .ar-page-links {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (min-width: 760px) {
  .controls {
    right: max(28px, env(safe-area-inset-right));
    bottom: max(28px, env(safe-area-inset-bottom));
  }

  .icon-button {
    width: 64px;
    height: 64px;
  }
}