*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --green-bg: rgb(166, 190, 158);
  --green-dark: rgb(52, 94, 74);
  --white: #ffffff;
  --stage-dark: #0e0e0e;
  --arm-offset: 24px;
  --arm-width: 130px;
  --arm-zone: calc(var(--arm-width) + var(--arm-offset) + 28px);
  --poster-h: min(97vh, calc(100vw - var(--arm-zone) - 0.5rem));
  --poster-w: min(calc(var(--poster-h) * 0.56), calc(100vw - var(--arm-zone) - 0.5rem));
}

html, body {
  height: 100%;
  overflow: hidden;
  font-family: system-ui, -apple-system, 'Segoe UI', sans-serif;
  background: var(--stage-dark);
}

#app {
  position: relative;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
}

/* ── Info panel (result state) ── */
.info-panel {
  position: absolute;
  inset: 0 auto 0 0;
  width: 0;
  padding: 0;
  background: var(--green-bg);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-left: clamp(2rem, 6vw, 5rem);
  padding-right: 2rem;
  opacity: 0;
  z-index: 2;
  overflow-x: hidden;
  overflow-y: auto;
  transition: width 0.9s cubic-bezier(0.22, 1, 0.36, 1),
              opacity 0.6s ease;
}

.info-museum {
  font-size: clamp(1rem, 2vw, 1.35rem);
  font-weight: 300;
  color: var(--white);
  margin-bottom: clamp(1.5rem, 4vh, 3rem);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease 0.5s, transform 0.5s ease 0.5s;
}

.info-category {
  font-size: clamp(1.8rem, 4.5vw, 3.5rem);
  font-weight: 700;
  color: var(--green-dark);
  line-height: 1.15;
  margin-bottom: clamp(1rem, 3vh, 2rem);
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.55s ease 0.65s, transform 0.55s ease 0.65s;
}

.info-title {
  font-size: clamp(2.2rem, 6vw, 5rem);
  font-weight: 700;
  color: var(--white);
  line-height: 1.08;
  margin-bottom: 0.25em;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.55s ease 0.8s, transform 0.55s ease 0.8s;
}

.info-subtitle {
  font-size: clamp(1.6rem, 4vw, 3.2rem);
  font-weight: 600;
  color: var(--white);
  line-height: 1.15;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.55s ease 0.95s, transform 0.55s ease 0.95s;
}

.info-subtitle:empty {
  display: none;
}

.info-description {
  font-size: clamp(0.95rem, 1.6vw, 1.2rem);
  font-weight: 300;
  color: var(--white);
  line-height: 1.55;
  max-width: 52rem;
  margin-top: clamp(1rem, 2.5vh, 2rem);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.55s ease 1.1s, transform 0.55s ease 1.1s;
}

.info-description:empty {
  display: none;
}

/* ── Stage center (carousel + slot) ── */
.stage-center {
  position: absolute;
  inset: 0 var(--arm-zone) 0 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 3;
}

.poster-box {
  width: var(--poster-w);
  height: var(--poster-h);
}

/* ── Carousel ── */
.carousel-view {
  position: relative;
  width: var(--poster-w);
  height: var(--poster-h);
}

.carousel-view .poster {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  filter: drop-shadow(0 20px 60px rgba(0, 0, 0, 0.55));
  opacity: 0;
  z-index: 1;
  transition: opacity 1s ease;
  pointer-events: none;
}

.carousel-view .poster.visible {
  opacity: 1;
  z-index: 2;
}

/* ── Slot machine ── */
.slot-frame {
  position: absolute;
  width: var(--poster-w);
  height: var(--poster-h);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s ease;
}

.slot-window {
  position: absolute;
  inset: 0;
  overflow: hidden;
  border-radius: 4px;
  box-shadow:
    0 0 0 2px rgba(255, 255, 255, 0.1),
    0 24px 70px rgba(0, 0, 0, 0.65);
}

.slot-window::before,
.slot-window::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  height: 22%;
  z-index: 2;
  pointer-events: none;
}

.slot-window::before {
  top: 0;
  background: linear-gradient(to bottom, rgba(0,0,0,0.75) 0%, transparent 100%);
}

.slot-window::after {
  bottom: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.75) 0%, transparent 100%);
}

.slot-reel {
  will-change: transform;
}

.slot-reel img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
}

/* ── Flying / result poster ── */
.result-poster-wrap {
  position: fixed;
  opacity: 0;
  pointer-events: none;
  z-index: 8;
}

.result-poster-wrap.is-visible {
  opacity: 1;
}

.result-poster-wrap.is-handoff {
  z-index: 10;
}

.result-poster {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 16px 50px rgba(0, 0, 0, 0.45));
}

/* ── Slot arm ── */
.slot-arm {
  position: fixed;
  right: var(--arm-offset);
  top: 50%;
  transform: translateY(-50%);
  width: var(--arm-width);
  height: 400px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 100;
  padding: 0 36px 0 0;
  overflow: visible;
  -webkit-tap-highlight-color: transparent;
}

.slot-arm:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.arm-svg {
  width: 100%;
  height: 100%;
  overflow: visible;
  filter: drop-shadow(4px 8px 16px rgba(0, 0, 0, 0.5));
}

.arm-pivot {
  transform-origin: 50px 108px;
  transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.slot-arm.pulling .arm-pivot {
  transform: rotate(32deg);
}

/* ── Intro sequence ── */
.state-intro .slot-arm {
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.8s ease;
}

.state-intro.intro-arm-visible .slot-arm {
  opacity: 1;
  pointer-events: auto;
}

.state-intro .carousel-view .poster.visible {
  opacity: 0;
}

.state-intro.intro-poster-visible .carousel-view .poster.visible {
  opacity: 1;
}

/* ══════════════════════════════════════
   STATE: CAROUSEL
   ══════════════════════════════════════ */
.state-carousel .carousel-view {
  opacity: 1;
}

.state-carousel .slot-frame {
  opacity: 0;
  pointer-events: none;
}

/* ══════════════════════════════════════
   STATE: SPINNING
   ══════════════════════════════════════ */
.state-spinning .carousel-view {
  opacity: 0;
  pointer-events: none;
}

.state-spinning .slot-frame {
  opacity: 1;
  pointer-events: auto;
  transition: none;
}

/* ══════════════════════════════════════
   STATE: RESULT
   ══════════════════════════════════════ */
.state-result .info-panel {
  width: calc(100% - var(--poster-w) - var(--arm-zone) - 1.5rem);
  min-width: 38%;
  opacity: 1;
}

.state-result .info-museum,
.state-result .info-category,
.state-result .info-title,
.state-result .info-subtitle,
.state-result .info-description {
  opacity: 1;
  transform: translateY(0);
}

.state-result .stage-center {
  visibility: hidden;
  pointer-events: none;
}

/* Zurück zur Mitte: nur das fliegende Plakat, kein Slot/Karussell */
.state-returning .info-panel {
  width: 0;
  opacity: 0;
}

.state-returning .info-museum,
.state-returning .info-category,
.state-returning .info-title,
.state-returning .info-subtitle,
.state-returning .info-description {
  opacity: 0;
  transform: translateY(20px);
  transition-duration: 0.3s;
  transition-delay: 0s;
}

.state-returning .stage-center {
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
}

/* ══════════════════════════════════════
   STATE: TEST (Alle Ausstellungen)
   ══════════════════════════════════════ */
.state-test .info-panel {
  position: absolute;
  inset: 0 auto 0 0;
  width: calc(100% - var(--poster-w) - var(--arm-zone) - 1.5rem);
  min-width: 38%;
  opacity: 1;
  padding-left: clamp(2rem, 6vw, 5rem);
  padding-right: 2rem;
}

.state-test .info-museum,
.state-test .info-category,
.state-test .info-title,
.state-test .info-subtitle,
.state-test .info-description {
  opacity: 1;
  transform: translateY(0);
}

.state-test .stage-center {
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
}

.state-test .carousel-view,
.state-test .slot-frame {
  opacity: 0;
  pointer-events: none;
}

.state-test .slot-arm {
  visibility: hidden;
  pointer-events: none;
}

/* ── Test controls ── */
.test-btn {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 200;
  padding: 0.45rem 0.85rem;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 4px;
  background: rgba(0, 0, 0, 0.55);
  color: #fff;
  font: inherit;
  font-size: 0.85rem;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.test-btn:hover {
  background: rgba(0, 0, 0, 0.75);
}

.test-nav {
  display: none;
}

.test-nav.is-visible {
  display: block;
}

.test-nav-btn {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  z-index: 200;
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.55);
  color: #fff;
  font-size: 1.35rem;
  line-height: 1;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.test-nav-btn:hover {
  background: rgba(0, 0, 0, 0.75);
}

.test-nav-prev {
  left: 1rem;
}

.test-nav-next {
  right: 1rem;
}

@media (max-width: 767px) {
  .state-test .info-panel {
    position: absolute;
    inset: 0 auto 0 0;
    top: 0;
    bottom: 0;
    left: 0;
    width: calc(100% - var(--poster-w) - 1.5rem);
    height: auto;
    min-height: 0;
    max-height: none;
  }
}

/* ══════════════════════════════════════
   MOBILE (≤767px)
   Mitte → oben (Result) | unten grün 1/3
   ══════════════════════════════════════ */
@media (max-width: 767px) {
  :root {
    --arm-width: 62px;
    --arm-offset: 0px;
    --arm-zone: calc(var(--arm-width) + 10px);
    --mobile-result-top: max(0.65rem, env(safe-area-inset-top));
    --mobile-info-h: 33.333dvh;
    --poster-h: min(56dvh, calc(100dvh - var(--mobile-info-h) - 3rem));
    --poster-w: min(calc(var(--poster-h) * 0.56), calc(100vw - var(--arm-zone) - 1.25rem));
  }

  .stage-center {
    inset: unset;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(calc(-50% - var(--arm-width) * 0.42), -50%);
    width: var(--poster-w);
    height: var(--poster-h);
  }

  .slot-arm {
    position: fixed;
    right: auto;
    left: calc(50% + var(--poster-w) / 2 - var(--arm-width) * 0.42 + 4px);
    top: 50%;
    transform: translateY(-50%);
    width: var(--arm-width);
    height: min(210px, 34dvh);
    padding: 0;
    transition:
      top 950ms cubic-bezier(0.22, 1, 0.36, 1),
      left 950ms cubic-bezier(0.22, 1, 0.36, 1),
      transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
  }

  .slot-arm.pulling {
    transform: translateY(-50%);
  }

  .state-result .info-panel {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    top: auto;
    width: 100%;
    height: var(--mobile-info-h);
    min-width: 0;
    min-height: var(--mobile-info-h);
    max-height: var(--mobile-info-h);
    padding: 1rem 1.1rem max(1rem, env(safe-area-inset-bottom));
    padding-left: 1.1rem;
    justify-content: flex-start;
    opacity: 1;
    z-index: 4;
    overflow-y: auto;
    transition: opacity 0.45s ease 0.2s, height 0.9s cubic-bezier(0.22, 1, 0.36, 1);
  }

  .state-result .info-museum {
    font-size: 0.85rem;
    margin-bottom: 0.65rem;
  }

  .state-result .info-category {
    font-size: clamp(1.05rem, 4.5vw, 1.45rem);
    margin-bottom: 0.45rem;
  }

  .state-result .info-title {
    font-size: clamp(1.25rem, 6vw, 1.85rem);
  }

  .state-result .info-subtitle {
    font-size: clamp(0.95rem, 4.2vw, 1.3rem);
  }

  .state-result .stage-center {
    visibility: hidden;
    pointer-events: none;
  }

  .state-returning .info-panel {
    width: 100%;
    height: 0;
    min-height: 0;
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    padding-top: 0;
    padding-bottom: 0;
    transition: opacity 0.35s ease, height 0.35s ease, min-height 0.35s ease;
  }
}