* {
  box-sizing: border-box;
}

html,
body {
  min-width: 280px;
  margin: 0;
}

body {
  min-height: 100svh;
  display: grid;
  place-items: center;
  padding: 0.75rem;
  color: var(--game-text);
  background: var(--game-bg);
  font-family: var(--game-font);
}

button,
output {
  font: inherit;
}

button {
  color: inherit;
}

.lab {
  width: min(100%, 420px);
  min-height: min(100svh, 400px);
  display: grid;
  grid-template-rows: auto auto auto 1fr auto;
  gap: 0.65rem;
  padding: 0.9rem;
  overflow: hidden;
  border: 1px solid var(--game-divider);
  border-radius: var(--game-radius);
  background: var(--game-bg);
  box-shadow: var(--game-shadow);
}

.intro,
.intro p,
.intro h1,
.dashboard p,
.outcome p,
.controls p {
  margin: 0;
}

.eyebrow {
  color: var(--game-accent);
  font-family: var(--game-mono);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.13em;
}

h1 {
  margin: 0.12rem 0 0.18rem;
  font-size: clamp(1.3rem, 5vw, 1.72rem);
  line-height: 1.08;
  letter-spacing: -0.035em;
}

.subtitle {
  color: var(--game-muted);
  font-size: 0.78rem;
  line-height: 1.35;
}

.dashboard {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.42rem;
}

.counter {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.4rem;
  padding: 0.42rem 0.55rem;
  border: 1px solid var(--game-divider);
  background: var(--game-surface);
}

.counter > span {
  color: var(--game-muted);
  font-size: 0.68rem;
}

.counter strong {
  font-family: var(--game-mono);
  font-size: 0.92rem;
}

.counter small {
  color: var(--game-muted);
  font-size: 0.66rem;
}

#status {
  grid-column: 1 / -1;
  min-height: 1.2rem;
  color: var(--game-muted);
  font-size: 0.73rem;
  line-height: 1.3;
}

.arms {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.45rem;
}

.arm {
  min-width: 0;
  min-height: 142px;
  display: grid;
  grid-template-rows: auto 1fr auto auto;
  gap: 0.48rem;
  padding: 0.58rem;
  border: 1px solid var(--game-divider);
  border-radius: var(--game-radius);
  background: var(--game-surface);
  cursor: pointer;
  text-align: left;
  transition:
    transform 140ms ease,
    border-color 140ms ease,
    background-color 140ms ease;
}

.arm:hover:not(:disabled) {
  border-color: var(--game-accent);
  transform: translateY(-2px);
}

.arm:focus-visible,
.new-trial:focus-visible,
.lab:focus-visible {
  outline: 3px solid var(--game-accent);
  outline-offset: 2px;
}

.lab:focus-visible {
  outline-offset: -3px;
}

.arm:disabled {
  cursor: default;
}

.arm[data-last='reward'] {
  border-color: var(--game-accent);
  background: var(--game-accent-soft);
}

.arm[data-last='miss'] {
  border-color: var(--game-warning);
}

.arm.is-best {
  border-color: var(--game-accent);
  box-shadow: inset 0 0 0 1px var(--game-accent);
}

.arm-heading {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.arm-heading strong {
  min-width: 0;
  font-size: 0.76rem;
  line-height: 1.1;
}

.keycap {
  flex: 0 0 1.25rem;
  display: grid;
  place-items: center;
  width: 1.25rem;
  height: 1.25rem;
  border: 1px solid var(--game-divider);
  background: var(--game-bg);
  font-family: var(--game-mono);
  font-size: 0.68rem;
  font-weight: 700;
}

.metrics {
  display: grid;
  align-content: center;
  gap: 0.2rem;
}

.metrics > span {
  min-width: 0;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.2rem;
}

.metrics small {
  color: var(--game-muted);
  font-size: 0.58rem;
  line-height: 1.08;
}

.metrics output {
  font-family: var(--game-mono);
  font-size: 0.75rem;
  font-weight: 700;
}

.estimate-track {
  height: 4px;
  overflow: hidden;
  background: var(--game-divider);
}

.estimate-fill {
  width: 0;
  height: 100%;
  display: block;
  background: var(--game-accent);
  transition: width 180ms ease;
}

.true-probability {
  color: var(--game-muted);
  font-family: var(--game-mono);
  font-size: 0.61rem;
  text-align: right;
}

.outcome {
  align-self: end;
  padding: 0.55rem 0.65rem;
  border-left: 3px solid var(--game-accent);
  background: var(--game-accent-soft);
}

.outcome[hidden] {
  display: none;
}

.outcome > strong {
  font-size: 0.74rem;
}

.result-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.5rem;
  margin-top: 0.28rem;
}

.result-grid p {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.35rem;
  color: var(--game-muted);
  font-size: 0.63rem;
}

.result-grid output {
  color: var(--game-text);
  font-family: var(--game-mono);
  font-weight: 700;
  text-align: right;
}

.probability-summary {
  margin-top: 0.25rem !important;
  color: var(--game-muted);
  font-family: var(--game-mono);
  font-size: 0.6rem;
}

.controls {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.65rem;
}

.controls p {
  color: var(--game-muted);
  font-size: 0.64rem;
  line-height: 1.3;
}

.new-trial {
  min-width: 82px;
  min-height: 44px;
  padding: 0.5rem 0.68rem;
  border: 1px solid var(--game-accent);
  border-radius: var(--game-radius);
  color: var(--game-on-accent);
  background: var(--game-accent);
  cursor: pointer;
  font-size: 0.72rem;
  font-weight: 700;
}

.new-trial:hover {
  background: var(--game-accent-strong);
}

html[data-embed='true'] body {
  padding: 0;
}

html[data-embed='true'] .lab {
  min-height: 100svh;
  border: 0;
  border-radius: 0;
  box-shadow: none;
}

@media (max-width: 320px) {
  .lab {
    gap: 0.5rem;
    padding: 0.7rem;
  }

  .arms {
    gap: 0.3rem;
  }

  .arm {
    min-height: 136px;
    padding: 0.46rem;
  }

  .arm-heading {
    gap: 0.22rem;
  }

  .arm-heading strong {
    font-size: 0.69rem;
  }

  .controls {
    gap: 0.42rem;
  }
}

@media (max-height: 430px) {
  body {
    padding: 0;
  }

  .lab {
    gap: 0.35rem;
    padding: 0.55rem;
  }

  .subtitle {
    font-size: 0.72rem;
  }

  .arm {
    min-height: 116px;
    gap: 0.32rem;
    padding-block: 0.4rem;
  }

  .lab.is-finished .subtitle {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .arm,
  .estimate-fill {
    transition: none;
  }

  .arm:hover:not(:disabled) {
    transform: none;
  }
}