html,
body {
  height: 100%;
  margin: 0;
  overflow: hidden;
  overscroll-behavior: none;
  background-color: var(--ak-bg);
  background-image: var(--ak-bg-art);
  background-size: var(--ak-bg-size);
  color: var(--ak-ink);
  font-family: var(--ak-font-body);
}

.play,
.play * {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.play {
  --pad-top: max(6px, env(safe-area-inset-top, 0px));
  --pad-x: max(8px, env(safe-area-inset-left, 0px), env(safe-area-inset-right, 0px));
  --pad-bot: max(8px, env(safe-area-inset-bottom, 0px));
  position: relative;
  display: grid;
  grid-template-rows: auto auto auto minmax(0, 1fr) auto;
  grid-template-areas: "top" "scores" "voice" "stage" "dock";
  gap: 4px;
  width: min(100%, 430px);
  height: 100dvh;
  max-height: 100dvh;
  margin: 0 auto;
  padding: var(--pad-top) var(--pad-x) var(--pad-bot);
  overflow: hidden;
  touch-action: manipulation;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  background-color: var(--ak-bg);
  background-image: var(--ak-backdrop-layer);
  background-size: cover;
  background-position: center top;
  background-repeat: no-repeat;
}

.mute {
  position: absolute;
  top: var(--pad-top);
  right: max(6px, env(safe-area-inset-right, 0px));
  z-index: 8;
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  padding: 0;
  border: 2px solid var(--ak-outline);
  border-radius: var(--ak-radius);
  background: var(--ak-surface);
  color: var(--ak-ink);
  box-shadow: var(--ak-shadow);
  cursor: pointer;
  touch-action: manipulation;
}

.mute-icon {
  width: 22px;
  height: 22px;
}

.slash {
  display: none;
}

.mute.is-muted .wave {
  display: none;
}

.mute.is-muted .slash {
  display: block;
}

.mute:focus-visible,
.gap:focus-visible,
.btn:focus-visible {
  outline: 3px solid var(--ak-focus);
  outline-offset: 2px;
}

.top {
  grid-area: top;
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 48px;
  padding-right: 52px;
}

.play-logo {
  display: block;
  width: auto;
  height: 40px;
  max-width: 46%;
  object-fit: contain;
}

.turn {
  display: flex;
  align-items: center;
  min-height: 36px;
  margin: 0 0 0 auto;
  padding: 4px 10px;
  border: 2px solid var(--ak-outline);
  border-radius: var(--ak-radius);
  background: var(--ak-surface);
  box-shadow: var(--ak-shadow);
  color: var(--ak-ink);
  font-family: var(--ak-font-display);
  font-size: 18px;
  font-weight: var(--ak-title-weight);
  line-height: 1;
  letter-spacing: 0.02em;
}

.scores {
  grid-area: scores;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  min-height: 72px;
}

.plate {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 72px;
  min-width: 0;
}

.plate-art {
  width: 92px;
  height: 78px;
  object-fit: contain;
  pointer-events: none;
}

.plate.is-cpu .plate-art {
  filter: grayscale(1) contrast(1.55) brightness(0.86);
}

.digit {
  position: absolute;
  z-index: 2;
  top: 16px;
  left: 50%;
  display: grid;
  place-items: center;
  width: 48px;
  height: 40px;
  margin-left: -24px;
  color: var(--ak-ink);
  font-family: var(--ak-font-display);
  font-size: 40px;
  font-weight: var(--ak-title-weight);
  line-height: 1;
}

.plate-name {
  position: absolute;
  z-index: 2;
  bottom: 0;
  margin: 0;
  color: var(--ak-ink);
  font-family: var(--ak-font-body);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  line-height: 1;
  text-transform: uppercase;
}

.voice {
  grid-area: voice;
  min-height: 22px;
  margin: 0;
  color: var(--ak-ink);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.25;
  text-align: center;
}

.stage {
  grid-area: stage;
  container-type: size;
  display: grid;
  place-items: end center;
  min-height: 0;
  padding: 6px 18px 12px;
  touch-action: manipulation;
}

.plat {
  position: relative;
  width: min(100cqw, 100cqh, 100%, calc(100dvh - 248px - env(safe-area-inset-top, 0px) - env(safe-area-inset-bottom, 0px)));
  height: min(100cqw, 100cqh, 100%, calc(100dvh - 248px - env(safe-area-inset-top, 0px) - env(safe-area-inset-bottom, 0px)));
  max-width: 100%;
  max-height: 100%;
  border-top: 3px solid var(--ak-accent);
  border-right: 4px solid var(--ak-accent);
  border-bottom: 9px solid var(--ak-accent);
  border-left: 4px solid var(--ak-accent);
  border-radius: var(--ak-radius);
  background: var(--ak-surface);
  box-shadow: var(--ak-shadow);
  touch-action: manipulation;
}

.halftone {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image: var(--ak-bg-art);
  background-size: var(--ak-bg-size);
  opacity: 1;
  pointer-events: none;
}

.board {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  grid-template-rows: repeat(5, minmax(0, 1fr));
  touch-action: manipulation;
}

.cell {
  position: relative;
  min-width: 0;
  min-height: 0;
}

.dot {
  position: absolute;
  z-index: 6;
  width: 32px;
  height: auto;
  transform: translate(-50%, -50%) scale(var(--dot-scale, 1));
  pointer-events: none;
}

.gap {
  position: absolute;
  z-index: 3;
  display: grid;
  place-items: center;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
  touch-action: manipulation;
}

.gap-h {
  left: 0;
  right: 0;
  height: 48px;
  min-width: 48px;
  min-height: 48px;
}

.gap-h.edge-top {
  top: 0;
  transform: translateY(-50%);
}

.gap-h.edge-bottom {
  bottom: 0;
  transform: translateY(50%);
}

.gap-v {
  top: 0;
  bottom: 0;
  width: 48px;
  min-width: 48px;
  min-height: 48px;
}

.gap-v.edge-left {
  left: 0;
  transform: translateX(-50%);
}

.gap-v.edge-right {
  left: 100%;
  transform: translateX(-50%);
}

.slot {
  display: block;
  background: color-mix(in srgb, var(--ak-ink) 8%, var(--ak-surface));
  border: 3px solid var(--ak-outline);
  border-radius: var(--ak-radius);
  pointer-events: none;
}

.gap-h .slot {
  width: calc(100% - 18px);
  height: var(--thick, 12px);
}

.gap-v .slot {
  width: var(--thick, 12px);
  height: calc(100% - 18px);
}

.gap.is-filled .slot {
  opacity: 0;
}

.gap.is-filled {
  cursor: default;
}

.plat.is-example .gap {
  opacity: 0.22;
}

.plat.is-example .gap.is-demo {
  opacity: 1;
}

.ink-wrap {
  position: absolute;
  z-index: 4;
  display: block;
  height: 28px;
  pointer-events: none;
}

.ink-h {
  left: 8%;
  width: 84%;
}

.ink-h.edge-top {
  top: 0;
  transform: translateY(-50%);
}

.ink-h.edge-bottom {
  bottom: 0;
  transform: translateY(50%);
}

.ink-v {
  top: 50%;
  width: 84%;
}

.ink-v.edge-left {
  left: 0;
  transform: translate(-50%, -50%) rotate(90deg);
}

.ink-v.edge-right {
  left: 100%;
  transform: translate(-50%, -50%) rotate(90deg);
}

.ink {
  display: block;
  width: 100%;
  height: 28px;
  object-fit: fill;
  pointer-events: none;
}

.ink-wrap.is-cpu .ink {
  filter: grayscale(1) brightness(0.28) contrast(1.5);
}

.stamp.is-cpu {
  filter: grayscale(1) contrast(1.25) brightness(0.55);
}

.stamp {
  position: absolute;
  z-index: 2;
  top: 6%;
  left: 8%;
  width: 84%;
  height: 88%;
  object-fit: contain;
  pointer-events: none;
}

.curl {
  position: absolute;
  right: 0;
  bottom: 0;
  z-index: 0;
  width: 46px;
  height: 46px;
  background: linear-gradient(135deg, transparent 48%, var(--ak-accent) 48% 62%, var(--ak-surface) 62%);
  pointer-events: none;
}

.flash {
  position: absolute;
  inset: 0;
  z-index: 8;
  border: 6px solid var(--ak-accent);
  opacity: 0;
  pointer-events: none;
}

.burst {
  position: absolute;
  inset: 0;
  z-index: 9;
  overflow: hidden;
  pointer-events: none;
}

.bit {
  position: absolute;
  top: 46%;
  width: 10px;
  height: 14px;
  background: var(--ak-accent);
  opacity: 0;
}

.bit.is-b {
  width: 8px;
  height: 8px;
  background: var(--ak-accent-2);
}

.bit.is-c {
  width: 12px;
  height: 6px;
  background: var(--ak-ink);
}

.dock {
  grid-area: dock;
}

.why {
  margin: 0 0 8px;
  padding: 8px 10px;
  border: 2px solid var(--ak-outline);
  border-left: 6px solid var(--ak-accent);
  border-radius: var(--ak-radius);
  background: var(--ak-surface);
  box-shadow: var(--ak-shadow);
  color: var(--ak-ink);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.3;
}

.result-card {
  padding: 10px;
  border: 2px solid var(--ak-outline);
  border-radius: var(--ak-radius);
  background: var(--ak-surface);
  box-shadow: var(--ak-shadow);
}

.result-says {
  margin: 0 0 10px;
  color: var(--ak-ink);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.35;
}

.result-actions {
  display: grid;
  gap: 8px;
}

.btn {
  min-width: 48px;
  min-height: 48px;
  padding: 8px 10px;
  border: 2px solid var(--ak-outline);
  border-radius: var(--ak-radius);
  box-shadow: var(--ak-shadow);
  font-family: var(--ak-font-display);
  font-size: 18px;
  letter-spacing: 0.03em;
  line-height: 1.1;
  cursor: pointer;
  touch-action: manipulation;
}

.btn-go {
  background: var(--ak-btn-fill);
  color: var(--ak-btn-ink);
}

.btn-alt {
  background: var(--ak-surface);
  color: var(--ak-ink);
}

.btn:active,
.mute:active {
  background: var(--ak-btn-active);
  color: var(--ak-btn-ink);
}

.btn-alt:active {
  background: var(--ak-btn-active);
  color: var(--ak-btn-ink);
}

.gap.is-down .slot {
  background: var(--ak-bg);
  border-color: var(--ak-accent);
}

@media (min-width: 390px) {
  .result-actions {
    grid-template-columns: 1fr 1fr;
  }
}

@media (hover: hover) {
  .btn-go:hover {
    background: var(--ak-btn-hover);
  }

  .gap:hover .slot {
    border-color: var(--ak-accent);
  }
}

@media (prefers-reduced-motion: no-preference) {
  .play-logo {
    animation: logo-idle 3.2s ease-in-out infinite;
  }

  .halftone {
    animation: shimmer 3.6s linear infinite;
  }

  .curl {
    animation: curl-idle 3.8s ease-in-out infinite;
  }

  .turn.is-pop {
    animation: pop 280ms cubic-bezier(0.34, 1.56, 0.64, 1);
  }

  .digit.is-hop {
    animation: hop 340ms cubic-bezier(0.34, 1.56, 0.64, 1);
  }

  .plate.is-live.is-you {
    animation: you-glow 1s ease-in-out infinite;
  }

  .plate.is-live.is-cpu {
    animation: cpu-glow 1s ease-in-out infinite;
  }

  .gap.is-invite .slot {
    animation: invite 1.5s ease-in-out infinite;
    animation-delay: calc(var(--row, 0) * 70ms);
  }

  .gap.is-late .slot {
    animation: pulse-gap 0.85s ease-in-out infinite;
  }

  .gap.is-down .slot {
    transform: scale(0.88);
  }

  .gap.is-shake .slot,
  .voice.is-shake {
    animation: shake 280ms ease-in-out;
  }

  .ink-wrap.is-fresh .ink {
    animation: brush 280ms cubic-bezier(0.22, 1, 0.36, 1) both;
  }

  .ink-wrap.is-fresh.is-cpu .ink {
    animation-delay: 140ms;
  }

  .stamp.is-fresh {
    animation: stamp-down 380ms cubic-bezier(0.34, 1.56, 0.64, 1) both;
  }

  .flash.is-on {
    animation: border-flash 700ms ease-out;
  }

  .plat.is-win {
    animation: chase 0.85s linear 3;
  }

  .bit {
    animation: confetti 900ms ease-out forwards;
  }

  .btn:active,
  .mute:active {
    transform: translateY(2px);
    box-shadow: none;
  }
}

@keyframes logo-idle {
  0%,
  100% { transform: translateY(0); }
  50% { transform: translateY(-3px); }
}

@keyframes shimmer {
  from { background-position: 0 0; }
  to { background-position: 12px 18px; }
}

@keyframes curl-idle {
  0%,
  100% { transform: translate(0, 0) rotate(0deg); }
  50% { transform: translate(-3px, -4px) rotate(-3deg); }
}

@keyframes pop {
  0% { transform: scale(0.86); }
  60% { transform: scale(1.08); }
  100% { transform: scale(1); }
}

@keyframes hop {
  0% { transform: translateY(0) scale(1, 1); }
  40% { transform: translateY(-8px) scale(1.16, 0.86); }
  100% { transform: translateY(0) scale(1, 1); }
}

@keyframes you-glow {
  0%,
  100% { box-shadow: 0 0 0 0 var(--ak-accent), 0 0 0 var(--ak-glow); }
  50% { box-shadow: 0 0 0 3px var(--ak-accent), 0 0 12px var(--ak-glow); }
}

@keyframes cpu-glow {
  0%,
  100% { box-shadow: 0 0 0 0 var(--ak-ink), 0 0 0 var(--ak-glow); }
  50% { box-shadow: 0 0 0 3px var(--ak-ink), 0 0 12px var(--ak-glow); }
}

@keyframes invite {
  0%,
  100% { transform: scale(1); }
  50% { transform: scale(1.08, 1.22); }
}

@keyframes pulse-gap {
  0%,
  100% { transform: scale(1); filter: brightness(1); }
  50% { transform: scale(1.16, 1.5); filter: brightness(1.2); }
}

@keyframes shake {
  0%,
  100% { transform: translateX(0); }
  30% { transform: translateX(-5px); }
  70% { transform: translateX(5px); }
}

@keyframes brush {
  0% { transform: scaleX(0.05) scaleY(1.3); }
  64% { transform: scaleX(1.06) scaleY(0.84); }
  100% { transform: scaleX(1) scaleY(1); }
}

@keyframes stamp-down {
  0% { transform: scale(1.45, 0.55); }
  55% { transform: scale(0.9, 1.14); }
  100% { transform: scale(1); }
}

@keyframes border-flash {
  0% { opacity: 1; }
  100% { opacity: 0; }
}

@keyframes chase {
  0% { box-shadow: 5px 5px 0 var(--ak-accent), var(--ak-shadow); }
  50% { box-shadow: -4px 5px 0 var(--ak-accent-2), var(--ak-shadow); }
  100% { box-shadow: 5px 5px 0 var(--ak-accent), var(--ak-shadow); }
}

@keyframes confetti {
  0% { opacity: 1; transform: translate(0, 0) rotate(0deg) scale(1); }
  100% { opacity: 0; transform: translate(var(--dx), var(--dy)) rotate(200deg) scale(0.55); }
}