:root {
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #05070a;
  color: #f8fbff;
}

* {
  box-sizing: border-box;
}

html,
body,
.app {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
}

button,
input {
  font: inherit;
}

.app {
  position: fixed;
  inset: 0;
  touch-action: none;
  background:
    radial-gradient(circle at 20% 0%, rgba(64, 221, 177, 0.18), transparent 36%),
    linear-gradient(180deg, #091018, #020305);
}

.camera,
.xr-stage,
.overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

#ARButton.native-xr-button,
.native-xr-button {
  z-index: 20 !important;
  bottom: calc(max(18px, env(safe-area-inset-bottom)) + 180px) !important;
  left: 50% !important;
  transform: translateX(-50%) !important;
  min-width: 176px !important;
  border-radius: 8px !important;
  border: 1px solid rgba(101, 246, 197, 0.64) !important;
  background: rgba(26, 96, 79, 0.9) !important;
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.42) !important;
  font: 800 13px Inter, system-ui, sans-serif !important;
}

.camera {
  object-fit: cover;
  transform: scaleX(-1);
  opacity: 0.88;
}

.xr-stage {
  z-index: 1;
  pointer-events: none;
}

.overlay {
  z-index: 2;
}

.hud {
  position: absolute;
  z-index: 4;
  left: max(16px, env(safe-area-inset-left));
  right: max(16px, env(safe-area-inset-right));
  top: max(14px, env(safe-area-inset-top));
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  pointer-events: none;
}

.brand {
  display: flex;
  max-width: min(460px, 100%);
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  background: rgba(4, 8, 12, 0.58);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.34);
  backdrop-filter: blur(18px);
}

.mark {
  width: 36px;
  height: 36px;
  flex: 0 0 auto;
  border-radius: 50%;
  background:
    linear-gradient(#0c1118, #0c1118) padding-box,
    conic-gradient(from 220deg, #65f6c5, #fbdf6f, #ff5e7a, #65f6c5) border-box;
  border: 3px solid transparent;
}

h1,
p {
  margin: 0;
}

h1 {
  font-size: 17px;
  line-height: 1.1;
  font-weight: 760;
}

p,
.hint,
.readout,
label {
  font-size: 12px;
  line-height: 1.35;
  color: rgba(248, 251, 255, 0.74);
}

.controls,
.item-tray {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  pointer-events: auto;
}

.controls {
  justify-content: flex-end;
}

button {
  min-width: 70px;
  min-height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background: rgba(8, 13, 18, 0.78);
  color: #f8fbff;
  font-size: 13px;
  font-weight: 720;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(18px);
}

button:active {
  transform: translateY(1px);
}

button.is-active,
.item-btn.is-active {
  border-color: rgba(101, 246, 197, 0.72);
  background: rgba(26, 96, 79, 0.72);
}

.item-tray {
  position: absolute;
  z-index: 4;
  left: max(16px, env(safe-area-inset-left));
  right: max(16px, env(safe-area-inset-right));
  bottom: calc(max(18px, env(safe-area-inset-bottom)) + 88px);
  justify-content: center;
}

.item-btn {
  min-width: 82px;
  min-height: 38px;
  color: rgba(248, 251, 255, 0.88);
}

.panel {
  position: absolute;
  z-index: 4;
  left: max(16px, env(safe-area-inset-left));
  right: max(16px, env(safe-area-inset-right));
  bottom: max(18px, env(safe-area-inset-bottom));
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 12px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  background: rgba(4, 8, 12, 0.62);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.38);
  backdrop-filter: blur(18px);
}

label {
  display: grid;
  gap: 5px;
  font-weight: 680;
}

input[type="range"] {
  width: 100%;
  accent-color: #65f6c5;
}

.readout {
  display: grid;
  min-width: 92px;
  gap: 2px;
  justify-items: end;
  font-variant-numeric: tabular-nums;
}

.reticle {
  position: absolute;
  z-index: 3;
  left: 50%;
  top: 50%;
  width: 34px;
  height: 34px;
  margin: -17px 0 0 -17px;
  border: 2px solid rgba(101, 246, 197, 0.86);
  border-radius: 50%;
  opacity: 0.65;
  pointer-events: none;
}

.reticle::before,
.reticle::after {
  content: "";
  position: absolute;
  background: rgba(101, 246, 197, 0.86);
}

.reticle::before {
  left: 50%;
  top: -9px;
  width: 2px;
  height: 50px;
}

.reticle::after {
  left: -9px;
  top: 50%;
  width: 50px;
  height: 2px;
}

.hint {
  position: absolute;
  z-index: 4;
  left: 50%;
  bottom: calc(max(18px, env(safe-area-inset-bottom)) + 142px);
  width: min(420px, calc(100% - 32px));
  transform: translateX(-50%);
  text-align: center;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.8);
  pointer-events: none;
}

@media (max-width: 680px) {
  .hud {
    display: grid;
  }

  .brand {
    width: 100%;
  }

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

  button {
    min-width: 68px;
  }

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

  .item-tray {
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .readout {
    display: flex;
    justify-content: space-between;
  }
}