:root {
  color-scheme: dark;
  --bg: #0f1214;
  --ink: #f7faf8;
  --muted: rgba(247, 250, 248, 0.68);
  --panel: rgba(16, 19, 22, 0.68);
  --panel-strong: rgba(16, 19, 22, 0.86);
  --line: rgba(255, 255, 255, 0.16);
  --coral: #ff6f61;
  --mint: #52d6b5;
  --gold: #ffd166;
  --blue: #55a7ff;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.34);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
  background: var(--bg);
  color: var(--ink);
}

body.xr-body-active,
body.xr-body-active .app-shell {
  background: transparent;
}

button,
input {
  font: inherit;
}

button {
  border: 0;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.app-shell {
  position: fixed;
  inset: 0;
  min-height: 100svh;
  overflow: hidden;
  background: var(--bg);
  touch-action: none;
}

.camera,
.camera-fallback,
.ar-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.camera {
  object-fit: cover;
  background: #101316;
  transform: translateZ(0);
}

.camera.is-user-facing {
  transform: scaleX(-1);
}

.camera-fallback {
  opacity: 0;
  transition: opacity 220ms ease;
  background:
    radial-gradient(circle at 18% 16%, rgba(82, 214, 181, 0.24), transparent 28%),
    radial-gradient(circle at 84% 8%, rgba(255, 111, 97, 0.2), transparent 26%),
    linear-gradient(140deg, #151a1d 0%, #263136 48%, #172023 100%);
}

.camera-fallback::before {
  position: absolute;
  inset: -12% -20% 0;
  content: "";
  opacity: 0.42;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
  background-size: 52px 52px;
  transform: perspective(440px) rotateX(64deg) translateY(26%);
  transform-origin: center bottom;
}

.camera-fallback.is-visible {
  opacity: 1;
}

.ar-canvas {
  z-index: 2;
}

.top-bar,
.scene-tabs,
.xr-hint,
.permission-panel,
.toast {
  position: fixed;
  z-index: 4;
}

.top-bar {
  top: calc(env(safe-area-inset-top, 0px) + 16px);
  left: 16px;
  right: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  pointer-events: none;
}

.top-actions {
  display: flex;
  gap: 8px;
  pointer-events: auto;
}

.status-chip {
  min-width: 48px;
  height: 34px;
  display: grid;
  place-items: center;
  padding: 0 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  font-size: 0.78rem;
  font-weight: 760;
  letter-spacing: 0;
}

.permission-panel {
  left: 50%;
  bottom: calc(env(safe-area-inset-bottom, 0px) + 26px);
  width: min(92vw, 410px);
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-strong);
  box-shadow: var(--shadow);
  transform: translateX(-50%);
  backdrop-filter: blur(24px);
  transition:
    opacity 220ms ease,
    transform 220ms ease,
    visibility 220ms ease;
}

.permission-panel.is-hidden {
  visibility: hidden;
  opacity: 0;
  transform: translate(-50%, 14px);
  pointer-events: none;
}

.brand-mark {
  position: relative;
  width: 52px;
  height: 52px;
  margin-bottom: 18px;
}

.brand-mark span {
  position: absolute;
  inset: 0;
  border-radius: 8px;
  background: linear-gradient(145deg, var(--coral), var(--gold));
  box-shadow: 0 12px 34px rgba(255, 111, 97, 0.28);
}

.brand-mark span + span {
  inset: 9px -10px -9px 10px;
  background: linear-gradient(145deg, var(--mint), var(--blue));
  mix-blend-mode: screen;
}

h1 {
  margin: 0 0 8px;
  font-size: 2.2rem;
  line-height: 1.02;
  letter-spacing: 0;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--gold);
  font-size: 0.74rem;
  font-weight: 820;
  letter-spacing: 0;
  text-transform: uppercase;
}

p {
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.45;
}

.permission-actions {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-top: 22px;
}

.primary-action,
.ghost-action {
  min-height: 50px;
  border-radius: 8px;
  color: #0b1110;
  font-weight: 760;
}

.primary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 0 18px;
  background: linear-gradient(135deg, var(--mint), var(--gold));
  box-shadow: 0 16px 38px rgba(82, 214, 181, 0.24);
}

.xr-action {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, var(--blue), var(--mint));
}

.primary-action:disabled {
  cursor: not-allowed;
  filter: saturate(0.25);
  opacity: 0.62;
}

.primary-action svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.ghost-action {
  padding: 0 18px;
  color: var(--ink);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.08);
}

.scene-tabs {
  top: calc(env(safe-area-inset-top, 0px) + 62px);
  left: 50%;
  display: grid;
  grid-template-columns: repeat(3, 44px);
  gap: 6px;
  padding: 6px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(12, 15, 17, 0.48);
  box-shadow: var(--shadow);
  transform: translateX(-50%);
  backdrop-filter: blur(18px);
}

.scene-tab,
.icon-button {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  color: var(--ink);
  border: 1px solid transparent;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  transition:
    background 160ms ease,
    border-color 160ms ease,
    transform 160ms ease;
}

.scene-tab:active,
.icon-button:active,
.capture-button:active {
  transform: scale(0.94);
}

.scene-tab.is-active {
  color: #101312;
  background: var(--ink);
}

.scene-tab svg,
.icon-button svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.scene-tab[data-scene="heart"] svg,
.scene-tab[data-scene="spark"] svg {
  fill: currentColor;
  stroke-width: 1.2;
}

.xr-canvas {
  position: fixed;
  inset: 0;
  z-index: 3;
  width: 100%;
  height: 100%;
}

.is-xr-active .camera,
.is-xr-active .camera-fallback,
.is-xr-active .ar-canvas {
  opacity: 0;
  pointer-events: none;
}

.is-xr-active .permission-panel {
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
}

.is-xr-active .scene-tabs,
.is-xr-active .top-bar {
  z-index: 6;
}

.xr-hint {
  left: 50%;
  bottom: calc(env(safe-area-inset-bottom, 0px) + 28px);
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 12px;
  align-items: center;
  min-width: min(86vw, 300px);
  padding: 12px 14px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  color: var(--ink);
  background: rgba(12, 15, 17, 0.68);
  box-shadow: var(--shadow);
  transform: translateX(-50%);
  backdrop-filter: blur(18px);
  z-index: 7;
  pointer-events: none;
}

.xr-hint[hidden] {
  display: none;
}

.xr-hint strong,
.xr-hint small {
  display: block;
  letter-spacing: 0;
}

.xr-hint strong {
  font-size: 0.95rem;
  line-height: 1.1;
}

.xr-hint small {
  margin-top: 3px;
  color: var(--muted);
  font-size: 0.78rem;
}

.xr-hint-visual {
  position: relative;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(82, 214, 181, 0.55);
  border-radius: 999px;
}

.xr-hint-visual::before,
.xr-hint-visual::after,
.xr-hint-visual span {
  position: absolute;
  content: "";
  border-radius: 999px;
}

.xr-hint-visual::before {
  inset: 9px;
  border: 2px solid rgba(82, 214, 181, 0.82);
  animation: scanPulse 1.35s ease-in-out infinite;
}

.xr-hint-visual::after {
  left: 50%;
  top: 50%;
  width: 7px;
  height: 7px;
  background: var(--mint);
  transform: translate(-50%, -50%);
}

.xr-hint-visual span:first-child {
  left: 7px;
  right: 7px;
  top: 50%;
  height: 2px;
  background: rgba(255, 255, 255, 0.72);
  transform: translateY(-50%);
}

.xr-hint-visual span:last-child {
  left: 50%;
  top: 7px;
  bottom: 7px;
  width: 2px;
  background: rgba(255, 255, 255, 0.72);
  transform: translateX(-50%);
}

.xr-hint.is-found .xr-hint-visual {
  border-color: rgba(255, 209, 102, 0.78);
}

.xr-hint.is-found .xr-hint-visual::before {
  border-color: rgba(255, 209, 102, 0.9);
  animation-duration: 0.8s;
}

@keyframes scanPulse {
  0%,
  100% {
    opacity: 0.45;
    transform: scale(0.82);
  }

  50% {
    opacity: 1;
    transform: scale(1.08);
  }
}

.toast {
  left: 50%;
  bottom: calc(env(safe-area-inset-bottom, 0px) + 96px);
  max-width: min(82vw, 360px);
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink);
  background: var(--panel-strong);
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translate(-50%, 10px);
  backdrop-filter: blur(18px);
  pointer-events: none;
  transition:
    opacity 180ms ease,
    transform 180ms ease;
  font-size: 0.9rem;
  text-align: center;
}

.toast.is-visible {
  opacity: 1;
  transform: translate(-50%, 0);
}

.is-booting .top-bar,
.is-booting .scene-tabs {
  opacity: 0;
  pointer-events: none;
}

@media (min-width: 720px) {
  .permission-panel {
    bottom: 34px;
  }

  .scene-tabs {
    top: 22px;
  }
}

@media (max-width: 380px) {
  h1 {
    font-size: 1.85rem;
  }

  .scene-tab,
  .icon-button {
    width: 40px;
    height: 40px;
  }
}