/* ===== Battle Preseason ===== */
/* 方向性: ミニマル・知的・静か・能力測定の緊張感 */

.preseason-tag {
  margin-left: 8px;
  padding: 2px 8px;
  border: 1px solid rgba(148, 163, 184, 0.4);
  border-radius: 999px;
  font-size: 10px;
  letter-spacing: 0.16em;
  color: #94a3b8;
}

/* ===== ロビー ===== */
.rank-card__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 16px;
  margin-bottom: 12px;
}

.rank-card__rank {
  margin: 0;
  font-size: 34px;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.rank-card__rp {
  margin: 4px 0 0;
  color: #94a3b8;
  font-size: 14px;
}

.rank-card__record {
  text-align: right;
  color: #cbd5e1;
  font-size: 15px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.battle-start-row {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-top: 20px;
}

.battle-start-btn {
  flex: 1;
  padding: 15px 24px;
  font-size: 17px;
  letter-spacing: 0.06em;
}

.battle-note {
  margin-top: 10px;
  font-size: 12px;
}

/* ===== 対戦画面 ===== */
#battleArena {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.arena-panel {
  padding: 20px 24px;
  border-radius: 24px;
  background: rgba(15, 23, 42, 0.76);
  border: 1px solid rgba(148, 163, 184, 0.22);
  backdrop-filter: blur(14px);
}

/* YOU側が主役: Study/Challengeのゲームカードと同程度のサイズ感 */
.arena-panel--you {
  border-color: rgba(96, 165, 250, 0.4);
  padding: 32px 28px;
  text-align: center;
}

.arena-panel--you .arena-ja {
  font-size: clamp(30px, 5.5vw, 58px);
  margin: 10px 0 18px;
}

.arena-panel--you .arena-panel__stats strong {
  font-size: 24px;
}

.arena-panel--you .arena-status {
  font-size: 14px;
  min-height: 22px;
}

/* CPU側はコンパクト: 「相手が進行している」と分かれば十分 */
.arena-panel--cpu {
  padding: 14px 18px;
}

.arena-panel--cpu .arena-ja {
  font-size: clamp(16px, 2.5vw, 22px);
  margin: 4px 0 8px;
}

.arena-panel--cpu .arena-panel__stats strong {
  font-size: 16px;
}

.arena-panel--cpu .arena-status {
  font-size: 12px;
  min-height: 16px;
  margin-top: 4px;
}

.arena-panel--cpu .cpu-dot {
  width: 8px;
  height: 8px;
}

.arena-panel__head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 8px;
}

.arena-panel__who {
  color: #94a3b8;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.arena-panel__stats {
  color: #94a3b8;
  font-size: 13px;
}

.arena-panel__stats strong {
  color: #f8fafc;
  font-size: 20px;
  margin-left: 4px;
  font-variant-numeric: tabular-nums;
}

.arena-combo {
  margin-left: 10px;
  color: #fb923c;
  font-size: 12px;
  font-weight: 700;
}

.arena-ja {
  margin: 6px 0 10px;
  font-size: clamp(26px, 5vw, 44px);
  font-weight: 700;
  min-height: 1.2em;
}

.arena-ja--cpu {
  font-size: clamp(20px, 4vw, 32px);
  color: #cbd5e1;
}

.arena-status {
  min-height: 20px;
  margin: 8px 0 0;
  color: #94a3b8;
  font-size: 13px;
}

/* タイマーはレイアウト内に収める（浮かせない） */
.arena-timer {
  order: -1; /* モバイル縦配置では一番上 */
  align-self: center;
  padding: 6px 26px;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.76);
  border: 1px solid rgba(148, 163, 184, 0.22);
  font-size: 26px;
  font-weight: 800;
  color: #facc15;
  font-variant-numeric: tabular-nums;
}

.input-wrapper--battle {
  width: min(520px, 100%);
  margin: 0 auto;
}

/* Battleの入力欄も Study/Challenge と同じ「透明文字＋色付きレイヤー」方式にする
   （既存CSSは #input へのID指定のため、ここで #battleInput に同じ規則を与える） */
#battleInput {
  width: 100%;
  padding: 18px 20px;
  font-size: 26px;
  text-align: center;
  border: none;
  outline: none;
  background: transparent;
  color: transparent;
  caret-color: #0f172a;
  position: relative;
  z-index: 2;
}

#battleInput::placeholder {
  color: #94a3b8;
  font-size: 17px;
}

/* CPUの入力進捗ドット（文字は見せない） */
.cpu-progress {
  display: flex;
  gap: 6px;
  min-height: 12px;
}

.cpu-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(148, 163, 184, 0.25);
}

.cpu-dot--done {
  background: #94a3b8;
}

/* スコア加算の小さな脈動 */
.score-pulse {
  animation: score-pulse 0.3s ease;
}

@keyframes score-pulse {
  0% { transform: scale(1); }
  40% { transform: scale(1.18); }
  100% { transform: scale(1); }
}

/* ===== 結果画面 ===== */
.battle-result-card {
  text-align: center;
}

.battle-verdict {
  margin: 4px 0 18px;
  font-size: 40px;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.battle-verdict--win { color: #4ade80; }
.battle-verdict--loss { color: #f87171; }
.battle-verdict--draw { color: #facc15; }

.battle-scores {
  display: grid;
  gap: 6px;
  max-width: 340px;
  margin: 0 auto 18px;
}

.battle-scores__row {
  display: flex;
  justify-content: space-between;
  font-size: 20px;
  font-weight: 700;
}

.battle-scores__row--cpu {
  color: #94a3b8;
}

.battle-detail {
  display: flex;
  justify-content: center;
  gap: 26px;
  margin-bottom: 20px;
  color: #94a3b8;
  font-size: 13px;
}

.battle-detail strong {
  display: block;
  color: #f8fafc;
  font-size: 18px;
  margin-top: 2px;
}

.battle-rp {
  max-width: 340px;
  margin: 0 auto 18px;
}

.battle-rp__change {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 800;
}

.battle-promotion {
  margin: 10px 0 0;
  color: #facc15;
  font-weight: 800;
  letter-spacing: 0.12em;
  animation: promotion-in 0.5s ease;
}

@keyframes promotion-in {
  0% { opacity: 0; transform: translateY(6px); }
  100% { opacity: 1; transform: translateY(0); }
}

.battle-review {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin: 0 auto 20px;
  padding: 12px 16px;
  max-width: 340px;
  border-radius: 14px;
  background: rgba(248, 113, 113, 0.1);
  border: 1px solid rgba(248, 113, 113, 0.35);
}

.battle-review p {
  margin: 0;
  color: #f87171;
  font-weight: 700;
}

.battle-actions {
  display: flex;
  justify-content: center;
  gap: 12px;
}

/* デスクトップ: タイマーを上部中央、CPU 32% / YOU 68% */
@media (min-width: 860px) {
  #battleArena {
    display: grid;
    grid-template-columns: minmax(0, 32fr) minmax(0, 68fr);
    grid-template-areas:
      "timer timer"
      "cpu you";
    align-items: start;
    gap: 14px 16px;
  }

  .arena-timer {
    grid-area: timer;
    order: 0;
    justify-self: center;
  }

  .arena-panel--cpu {
    grid-area: cpu;
  }

  .arena-panel--you {
    grid-area: you;
    min-height: 340px;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .score-pulse,
  .battle-promotion {
    animation: none;
  }
}