.store-button.is-preferred {
  border-color: var(--gold);
  background: linear-gradient(135deg, rgba(251, 191, 36, 0.25), rgba(240, 147, 251, 0.18));
  box-shadow: 0 12px 34px rgba(251, 191, 36, 0.2);
}

.store-button.is-preferred::after {
  content: 'Best for this device';
  position: absolute;
  top: -0.2rem;
  left: 0.75rem;
  transform: translateY(-100%);
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  background: var(--gold);
  color: var(--ink);
  font-family: system-ui, sans-serif;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.store-button {
  position: relative;
}

.platform-note {
  min-height: 1.2rem;
  margin: 0.65rem 0 0;
  color: #fef3c7;
  font-family: system-ui, sans-serif;
  font-size: 0.82rem;
}

.hero.is-cascade-ready .store-button {
  animation: cta-pulse 0.9s ease both;
}

.merge-play {
  position: absolute;
  z-index: 4;
  top: 4%;
  left: 0;
  width: min(100%, 272px);
  padding: 1rem;
  border: 1px solid rgba(240, 147, 251, 0.35);
  border-radius: 1.25rem;
  background: linear-gradient(155deg, rgba(35, 16, 82, 0.96), rgba(10, 10, 26, 0.92));
  box-shadow:
    0 22px 50px rgba(0, 0, 0, 0.34),
    inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

.merge-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem;
  margin: 0 0 0.7rem;
}

.merge-heading strong {
  color: var(--white);
  font-size: 1.2rem;
}

.merge-heading span {
  color: var(--gold);
  font-family: system-ui, sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.mini-board {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.35rem;
  padding: 0.35rem;
  overflow: hidden;
  border-radius: 0.85rem;
  background: rgba(255, 255, 255, 0.06);
}

.mini-cell {
  min-height: 42px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.11);
  border-radius: 0.6rem;
  background: rgba(255, 255, 255, 0.035);
  color: var(--white);
  cursor: pointer;
  transition:
    border-color 0.18s ease,
    background 0.18s ease,
    transform 0.18s ease;
}

.mini-cell:hover,
.mini-cell:focus-visible {
  border-color: var(--pink);
  background: rgba(240, 147, 251, 0.15);
  transform: translateY(-2px);
}

.mini-tile {
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;
  border-radius: 0.5rem;
  background: linear-gradient(135deg, #f093fb, #7c3aed);
  font-size: 1.1rem;
  font-weight: 700;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.35);
}

.mini-cell:nth-child(6) .mini-tile {
  background: linear-gradient(135deg, #fbbf24, #f97316);
}
.mini-cell:nth-child(8) .mini-tile {
  background: linear-gradient(135deg, #60a5fa, #4f46e5);
}

.mini-board.is-merging .mini-cell.is-selected {
  animation: mini-select 0.35s ease both;
}
.mini-board.is-merging .mini-tile {
  animation: mini-merge 0.65s cubic-bezier(0.22, 1.4, 0.36, 1) both;
}

.merge-status {
  min-height: 1.25rem;
  margin: 0.7rem 0 0;
  color: var(--muted);
  font-family: system-ui, sans-serif;
  font-size: 0.78rem;
  line-height: 1.45;
}

.merge-status strong {
  color: var(--gold);
}

.phone-middle {
  top: 112px;
  left: 34%;
  z-index: 2;
  opacity: 0.93;
  transform: rotate(-1deg);
}

.screens .phone {
  transition:
    transform 0.35s ease,
    filter 0.35s ease;
}
.screens .phone:hover {
  z-index: 5;
  filter: brightness(1.08);
}
.screens .phone-back:hover {
  transform: translateY(-8px) rotate(-10deg);
}
.screens .phone-middle:hover {
  transform: translateY(-8px) rotate(-1deg);
}
.screens .phone-front:hover {
  transform: translateY(-8px) rotate(8deg);
}

.sticky-download {
  position: fixed;
  z-index: 10;
  right: 14px;
  bottom: calc(14px + env(safe-area-inset-bottom, 0px));
  left: 14px;
  display: none;
  align-items: center;
  gap: 0.75rem;
  padding: 0.7rem;
  border: 1px solid rgba(240, 147, 251, 0.42);
  border-radius: 1rem;
  background: rgba(16, 9, 37, 0.96);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.42);
  backdrop-filter: blur(14px);
}

.sticky-download[hidden] {
  display: none;
}
.sticky-copy {
  flex: 1;
  min-width: 0;
}
.sticky-copy strong {
  display: block;
  font-size: 0.95rem;
}
.sticky-copy span {
  display: block;
  color: var(--muted);
  font-family: system-ui, sans-serif;
  font-size: 0.7rem;
}

.sticky-store {
  flex: none;
  padding: 0.7rem 0.9rem;
  border-radius: 0.75rem;
  background: linear-gradient(135deg, var(--pink), var(--coral));
  color: var(--ink);
  font-family: system-ui, sans-serif;
  font-size: 0.78rem;
  font-weight: 800;
  text-decoration: none;
  white-space: nowrap;
}

.sticky-close {
  display: grid;
  flex: none;
  place-items: center;
  width: 32px;
  height: 32px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  color: var(--white);
  cursor: pointer;
  font-size: 1rem;
}

@keyframes cta-pulse {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 0 0 6px rgba(251, 191, 36, 0.14);
  }
}

@keyframes mini-select {
  50% {
    border-color: var(--gold);
    background: rgba(251, 191, 36, 0.25);
  }
}

@keyframes mini-merge {
  45% {
    transform: scale(1.12);
    filter: brightness(1.35);
  }
  100% {
    transform: scale(1);
  }
}

@media (min-width: 761px) {
  .hero .hero-art .merge-play {
    width: min(100%, 240px);
  }
  .hero .hero-art .mascot {
    width: min(47%, 225px);
    right: 0;
  }
}

@media (max-width: 760px) {
  .merge-play {
    top: 0;
    left: 50%;
    width: min(100%, 260px);
    transform: translateX(-50%);
  }
  .mascot {
    bottom: 0;
  }
  .phone-middle {
    top: 85px;
    left: 31%;
  }
  .sticky-download:not([hidden]) {
    display: flex;
  }
}

@media (max-width: 420px) {
  .store-button.is-preferred::after {
    display: none;
  }
  .sticky-copy {
    display: none;
  }
  .sticky-store {
    flex: 1;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero.is-cascade-ready .store-button,
  .mini-board.is-merging .mini-cell.is-selected,
  .mini-board.is-merging .mini-tile {
    animation: none;
  }
  .screens .phone:hover,
  .screens .phone-back:hover,
  .screens .phone-middle:hover,
  .screens .phone-front:hover {
    transform: none;
  }
}