body {
  font-family: -apple-system, "Hiragino Sans", sans-serif;
  background: #1a1a2e;
  color: #eee;
  margin: 0;
  padding: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  -webkit-text-size-adjust: 100%;
  overscroll-behavior: contain;
}

h1 {
  margin: 0 0 8px 0;
  font-size: 22px;
  letter-spacing: 0.1em;
}

#game {
  background: linear-gradient(#87ceeb 0%, #87ceeb 70%, #6b8e3b 70%, #4a6b28 100%);
  border: 2px solid #555;
  display: block;
  width: 100%;
  max-width: 960px;
  height: auto;          /* canvas の 960×320 比率を保ったまま画面幅に収まる */
  touch-action: manipulation;
}

#hud {
  display: flex;
  gap: 24px;
  align-items: center;
  margin-bottom: 8px;
  font-size: 13px;
  width: 100%;
  max-width: 960px;
  box-sizing: border-box;
  justify-content: space-between;
  flex-wrap: wrap;
}

.base-info, .money {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background: #222;
  border-radius: 6px;
}
.base-info.ally  { border-left: 4px solid #4fc3f7; }
.base-info.enemy { border-left: 4px solid #e74c3c; }
.money           { border-left: 4px solid #ffd86b; }

.bar {
  display: inline-block;
  width: 130px;
  height: 10px;
  background: #444;
  border-radius: 5px;
  overflow: hidden;
}
.fill {
  display: block;
  height: 100%;
  width: 100%;
  transition: width 80ms linear;
}
#ally-hp-fill   { background: linear-gradient(90deg, #80d8ff, #4fc3f7); }
#enemy-hp-fill  { background: linear-gradient(90deg, #ff8b8b, #e74c3c); }
#money-fill     { background: linear-gradient(90deg, #ffd86b, #ff8b3d); }

.hp-text, .money-text {
  font-variant-numeric: tabular-nums;
  min-width: 90px;
  font-size: 12px;
}

#deck {
  width: 100%;
  max-width: 960px;
  box-sizing: border-box;
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  gap: 6px;
  margin-top: 8px;
}

.card {
  position: relative;
  background: #2b2b46;
  border: 2px solid #555;
  border-radius: 8px;
  padding: 6px 4px 4px 4px;
  text-align: center;
  cursor: pointer;
  overflow: hidden;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  font-size: 11px;
  transition: transform 80ms;
}
/* ホバーは実際にホバー可能なデバイス (PC) でのみ。タッチ端末で hover が固着するのを防ぐ */
@media (hover: hover) {
  .card:hover:not(.disabled) { transform: translateY(-2px); }
}
.card:active:not(.disabled) { transform: scale(0.96); }
.card.disabled { cursor: not-allowed; }
.card .emoji   { font-size: 26px; display: block; line-height: 1.1; }
.card .name    { display: block; font-size: 10px; color: #eee; margin-top: 2px; height: 24px; }
.card .cost    { display: block; color: #ffd86b; font-weight: bold; font-variant-numeric: tabular-nums; }
.card .cost.unaffordable { color: #ff7070; }
.card .hotkey  { position: absolute; top: 2px; left: 4px; font-size: 9px; color: #999; }

.card .cooldown {
  position: absolute;
  left: 0; bottom: 0;
  width: 100%;
  background: rgba(0, 0, 0, 0.55);
  pointer-events: none;
  transition: height 80ms linear;
}

/* タッチ操作用ボタン (一時停止 / リスタート / ミュート) */
#action-buttons {
  display: flex;
  gap: 8px;
  margin-top: 10px;
  flex-wrap: wrap;
  justify-content: center;
  width: 100%;
  max-width: 960px;
  box-sizing: border-box;
}
#action-buttons button {
  background: #2b2b46;
  color: #eee;
  border: 2px solid #555;
  border-radius: 8px;
  padding: 10px 16px;
  min-height: 44px;          /* 指で押しやすいタッチターゲット */
  font-size: 14px;
  font-family: inherit;
  cursor: pointer;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  transition: background 80ms, transform 80ms;
}
#action-buttons button:active {
  background: #3a3a5c;
  transform: scale(0.97);
}

#controls {
  margin-top: 10px;
  font-size: 13px;
  color: #aaa;
  text-align: center;
  line-height: 1.6;
}

#message {
  margin-top: 12px;
  font-size: 24px;
  font-weight: bold;
  height: 32px;
  color: #ffd86b;
}

/* ------- スマホ / 狭い画面向け ------- */
@media (max-width: 640px) {
  body { padding: 8px; }
  h1 { font-size: 18px; }

  /* 3 項目は横並びだと幅が足りず見切れるので縦積み。各項目は内容幅で中央寄せ */
  #hud {
    flex-direction: column;
    align-items: center;
    gap: 4px;
    font-size: 12px;
  }
  .base-info, .money { padding: 5px 10px; gap: 8px; }
  .bar { width: 120px; height: 9px; }
  .hp-text, .money-text { min-width: 0; font-size: 11px; white-space: nowrap; }

  /* 10 列は指には狭すぎるので 5 列 × 2 段に */
  #deck { grid-template-columns: repeat(5, 1fr); gap: 5px; }
  .card { padding: 8px 4px 6px 4px; font-size: 12px; }
  .card .emoji { font-size: 30px; }
  .card .name { font-size: 11px; height: 26px; }

  #controls { font-size: 12px; }
  .kbd-hint { display: none; }   /* タッチ端末ではキーボード説明を隠す */
}