body {
  display: grid;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  font-family: Arial, sans-serif;
  gap: 20px;
  min-height: 100vh;
  margin: 10px;
  background-color: #f0f0f0;
}

.board {
  display: grid;
  grid-template-columns: repeat(15, 1fr);
  grid-template-rows: repeat(15, 1fr);
  gap: 1px;
  background-color: #333;
  padding: min(1vw, 1vh);
  border-radius: 5px;
  width: min(90vw, 90vh);
  height: min(90vw, 90vh);
  aspect-ratio: 1;
}

.cell {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: min(3vw, 3vh);
  font-weight: bold;
  color: rgba(255, 255, 255, 0.5);
  aspect-ratio: 1;
}

.normal {
  background-color: #e6d3a3;
  color: #333;
}

.dw {
  background-color: #ffb3ba;
}

.tw {
  background-color: #ff6b6b;
}

.dl {
  background-color: #87ceeb;
}

.tl {
  background-color: #4169e1;
}

.star {
  background-color: #ffd700;
  color: #333;
}

.letter {
  background-color: #ffd7aa;
  color: #333;
  font-size: min(4.5vw, 4.5vh);
  position: relative;
}

.letter.joker {
  color: #933;
}

.letter span {
  display: block;
  position: absolute;
  right: min(0.25vw, 0.25vh);
  bottom: 0;
  font-size: min(2vw, 2vh);
}

.history {
  flex-basis: 33%;
  background: white;
  border-radius: 8px;
  padding: 16px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  max-height: 70vh;
  overflow-y: auto;
  min-width: 300px;
}

.history-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid #eee;
}

.history-item:last-child {
  border-bottom: none;
}

.player-id {
  font-weight: bold;
  color: #666;
  min-width: 70px;
}

.move {
  flex: 1;
  margin: 0 12px;
  font-family: monospace;
  font-size: 14px;
}

.points {
  font-weight: bold;
  color: #2c5aa0;
  text-align: right;
  min-width: 60px;
}

.players {
  flex-basis: 33%;

  border-spacing: 5px;
  display: table;
  background: white;
  border-radius: 8px;
  padding: 16px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.player {
  display: table-row;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid #eee;
}

.player div {
  display: table-cell;
  white-space: pre;
}

.player:last-child {
  border-bottom: none;
}

.player .name {
  font-weight: bold;
  color: #333;
}

.player .score {
  font-weight: bold;
  color: #2c5aa0;
  font-size: 18px;
}

.player .rack {
  font-family: monospace;
  background: #f5f5f5;
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 14px;
}