/* The button is the hit box; .face is the visible circle. A 40 px face sits in
   a 44 px hit box whose negative margin keeps the 40 px layout footprint. */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  padding: 0;
  border: 0;
  border-radius: var(--radius-pill);
  background: transparent;
  color: inherit;
  cursor: pointer;
}

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

.size40 {
  width: 44px;
  height: 44px;
  margin: -2px;
}

.size52 {
  width: 52px;
  height: 52px;
}

.size62 {
  width: 62px;
  height: 62px;
}

/* A shown label sits 6 px under the circle, and the button grows to hold it. */
.labelled {
  flex-direction: column;
  gap: 6px;
  width: auto;
  min-width: 62px;
  height: auto;
  min-height: 62px;
  color: var(--color-neutral-700);
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 700;
}

.face {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-pill);
  transition: transform 100ms var(--ease-out-soft);
}

.size40 .face {
  width: 40px;
  height: 40px;
}

.size52 .face {
  width: 52px;
  height: 52px;
}

.size62 .face {
  width: 62px;
  height: 62px;
  box-shadow: var(--shadow-md);
}

.button:active:not(:disabled) .face {
  transform: scale(0.97);
}

.surface {
  background: var(--color-surface);
  color: var(--color-text);
}

.neutral {
  background: var(--color-neutral-100);
  color: var(--color-text);
}

.accent {
  background: var(--color-accent);
  color: var(--on-accent);
}

.teal {
  background: var(--color-accent-2-600);
  color: var(--on-accent);
}

@media (prefers-reduced-motion: reduce) {
  .face {
    transition: none;
  }
}