/* The player remains dormant until the visitor chooses to open the game. */
.columns-player {
  margin-top: 1.4rem;
  padding: 1.25rem;
  border: 1px solid #355647;
  border-radius: .5rem;
  background: #0b1912;
}
.columns-player h4 { margin: 0 0 .5rem; color: #e9f2eb; }
.columns-player p { margin: .5rem 0; }
.columns-player-actions { display: flex; align-items: center; flex-wrap: wrap; gap: .7rem 1.1rem; }
.columns-player-actions button {
  padding: .65rem .95rem;
  border: 1px solid #91e4b3;
  border-radius: .3rem;
  background: #91e4b3;
  color: #0a1c11;
  font: inherit;
  font-weight: 650;
  cursor: pointer;
}
.columns-player-actions button:focus-visible { outline: 3px solid #d8f9e2; outline-offset: 3px; }
.columns-player-actions button[hidden] { display: none; }
.columns-status { min-height: 1.5em; color: #b6cdbd; font-size: .88rem; }
.columns-game-frame {
  display: block;
  width: min(100%, 760px);
  /* Keep the complete board visible within the frame on desktop. */
  height: 740px;
  min-height: 420px;
  border: 1px solid #517862;
  border-radius: .35rem;
  background: #080f0c;
}