:root {
  color-scheme: dark;
  --bg: #07111b;
  --bg-strong: #030711;
  --surface: rgba(10, 16, 28, 0.82);
  --surface-strong: rgba(12, 19, 32, 0.94);
  --surface-soft: rgba(255, 255, 255, 0.04);
  --border: rgba(255, 255, 255, 0.1);
  --text: #f7f9fc;
  --muted: #bfd0df;
  --accent: #ffd100;
  --accent-strong: #ffe169;
  --danger: #ffb4b4;
  --success: #abf5cf;
  --shadow: 0 22px 60px rgba(0, 0, 0, 0.24);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(circle at top, rgba(255, 209, 0, 0.11), transparent 28%),
    linear-gradient(180deg, #07111b 0%, #030711 100%);
  color: var(--text);
}

body {
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
}

img,
video {
  max-width: 100%;
  display: block;
}

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

.site-shell {
  min-height: 100vh;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 18px 20px;
  backdrop-filter: blur(18px);
  background: rgba(4, 7, 13, 0.72);
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

.site-header__brand {
  font-weight: 700;
  letter-spacing: 0.02em;
}

.site-header__tag {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.page {
  width: min(1200px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 72px;
  display: grid;
  gap: 24px;
}

.panel {
  border-radius: 24px;
  border: 1px solid var(--border);
  background: var(--surface);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
  padding: 22px;
}

.hero {
  padding: 28px;
}

.hero h1,
.experience-panel h1 {
  margin: 0 0 12px;
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 0.98;
}

.lead {
  margin: 0;
  color: var(--text);
  font-size: clamp(1rem, 2vw, 1.1rem);
  line-height: 1.55;
}

.copy {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.74rem;
  font-weight: 700;
}

.grid {
  display: grid;
  gap: 20px;
}

.two-columns {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.three-columns {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.one-column {
  grid-template-columns: minmax(0, 1fr);
}

.scene-layout {
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
}

.section-stack {
  display: grid;
  gap: 18px;
}

.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 16px;
}

.card {
  display: grid;
  gap: 18px;
}

.scene-card {
  overflow: hidden;
}

.scene-card__media img,
.scene-preview img {
  border-radius: 18px;
  aspect-ratio: 1;
  object-fit: cover;
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.05);
}

.scene-card__body,
.scene-detail,
.scene-preview {
  display: grid;
  gap: 12px;
}

.meta-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 0;
}

.meta-list div {
  padding: 12px;
  background: var(--surface-soft);
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.meta-list dt {
  color: var(--muted);
  font-size: 0.84rem;
}

.meta-list dd {
  margin: 6px 0 0;
  font-weight: 700;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  appearance: none;
  border: 0;
  cursor: pointer;
  border-radius: 999px;
  padding: 14px 18px;
  transition: transform 140ms ease, opacity 140ms ease, background 140ms ease;
  font-weight: 700;
}

.button:hover {
  transform: translateY(-1px);
}

.button--primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #101626;
}

.button--secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.button--ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.pill {
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 209, 0, 0.12);
  color: var(--accent);
  border: 1px solid rgba(255, 209, 0, 0.2);
  font-size: 0.84rem;
  font-weight: 700;
}

.pill--warning {
  color: var(--danger);
  border-color: rgba(255, 180, 180, 0.2);
  background: rgba(255, 180, 180, 0.08);
}

.breadcrumbs {
  width: min(1200px, calc(100% - 32px));
  margin: 0 auto;
  padding-top: 28px;
}

.breadcrumbs a {
  color: var(--muted);
}

.qr-card {
  display: grid;
  gap: 14px;
}

.qr-card__header {
  display: grid;
  gap: 6px;
}

.qr-card__svg {
  width: 220px;
  max-width: 100%;
  padding: 16px;
  border-radius: 18px;
  background: white;
}

.qr-card__svg svg {
  width: 100%;
  height: auto;
}

.inline-code {
  padding: 10px 12px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 14px;
  color: var(--muted);
  overflow-wrap: anywhere;
}

.experience-page {
  min-height: calc(100vh - 73px);
  display: grid;
  grid-template-rows: auto 1fr;
}

.experience-page__topbar {
  position: relative;
  z-index: 5;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 16px 20px 0;
}

.experience-page__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  color: var(--muted);
  font-size: 0.92rem;
}

.ar-player {
  position: relative;
  min-height: calc(100vh - 73px);
}

.ar-player__ui {
  position: relative;
  z-index: 4;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.9fr);
  gap: 18px;
  padding: 16px 20px 20px;
  pointer-events: none;
}

.ar-player__ui > * {
  pointer-events: auto;
}

.experience-panel,
.scene-selector,
.runtime-loader {
  background: rgba(8, 14, 24, 0.84);
}

.experience-panel,
.scene-selector {
  display: grid;
  gap: 16px;
}

.experience-panel__header,
.scene-selector__header {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 16px;
}

.status-chip {
  display: grid;
  gap: 6px;
  padding: 14px 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.status-chip span {
  color: var(--muted);
}

.meta-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.meta-tags span {
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.06);
  color: var(--muted);
  font-size: 0.84rem;
}

.instruction-list ul {
  margin: 10px 0 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.5;
}

.scene-selector__list {
  display: grid;
  gap: 10px;
}

.scene-selector__item {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 14px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(255, 255, 255, 0.04);
}

.scene-selector__item p {
  margin: 6px 0 0;
  color: var(--muted);
  line-height: 1.45;
}

.scene-selector__item span {
  color: var(--accent);
  font-size: 0.82rem;
  white-space: nowrap;
}

.scene-selector__item.is-active {
  border-color: rgba(255, 209, 0, 0.28);
  background: rgba(255, 209, 0, 0.08);
}

.fallback-card {
  display: grid;
  gap: 12px;
  padding: 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.fallback-card__media {
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.ar-scene-shell {
  position: fixed;
  inset: 0;
  z-index: 1;
  background: radial-gradient(circle at top, rgba(255, 209, 0, 0.08), transparent 30%);
}

.ar-scene {
  position: absolute;
  inset: 0;
}

.runtime-loader {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  z-index: 4;
  width: min(520px, calc(100% - 32px));
}

@media (max-width: 1100px) {
  .three-columns {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .ar-player__ui,
  .scene-layout {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 780px) {
  .site-header,
  .experience-page__topbar {
    padding-inline: 14px;
  }

  .page,
  .breadcrumbs {
    width: min(100%, calc(100% - 24px));
  }

  .two-columns,
  .three-columns {
    grid-template-columns: minmax(0, 1fr);
  }

  .meta-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .ar-player__ui {
    padding-inline: 12px;
    align-content: start;
  }

  .experience-page__topbar {
    flex-direction: column;
    align-items: stretch;
  }
}