:root {
  --bg: #2d3748; 
  --win-color: #ffb400;
  --lose-color: #ffffff;

  /* ==========================================
     デフォルト（暗い背景用）の変数定義 
     ========================================== */
  --text-main: #ffffff;
  --text-sub: #cbd5e1;
  --text-id: #94a3b8;

  --badge-bg: rgba(0, 0, 0, 0.35);
  --badge-border: rgba(255, 255, 255, 0.1);
  --badge-color: rgba(255, 255, 255, 0.5);

  --history-panel-bg: rgba(0, 0, 0, 0.4);
  --history-item-color: rgba(255, 255, 255, 0.95);
  --history-item-border: rgba(255, 255, 255, 0.1);
  --history-miss-color: rgba(255, 255, 255, 0.55);
}

* { box-sizing: border-box; }

body {
  color: var(--text-main);
  background-color: #4e596f;
  background-image: url('../assets/bg.jpg');
  background-blend-mode: multiply;
  background-repeat: no-repeat;
  background-attachment: fixed;
  background-size: cover;
  background-position: center;
  margin: 0;
  padding: 0;
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", sans-serif;
  user-select: none;
  -webkit-user-select: none;
}

#win-bg-video {
  display: none; /* デフォルトは非表示 */
  position: fixed;
  top: 50%;
  left: 50%;
  min-width: 100%;
  min-height: 100%;
  width: auto;
  height: auto;
  z-index: -1; /* コンテンツの背面に配置 */
  transform: translate(-50%, -50%);
  object-fit: cover;
}

/* 当選時（state-win）のボディと動画の表示切り替え */
body.state-win {
  background-image: none !important; /* 当選時は背景画像を消す */
}
body.state-win #win-bg-video {
  display: block; /* 当選時だけ動画を表示する */
}

/* 2. スタート後（くじ引き準備画面）の背景 */
body.state-ready {
  background-image: url('../assets/bg_ready.jpg');
}

/* 3. 抽選中の背景 */
body.state-roulette {
  background-image: url('../assets/bg_roulette.jpg');
}

/* 4. アタリ（WIN）の背景 */
/* body.state-win {
  background-image: url('../assets/bg_win.jpg');
} */

/* 5. ハズレ（MISS） / エラーの背景 */
body.state-lose {
  background-image: url('../assets/bg_lose.jpg');
}

/* 6. 終了画面の背景 */
body.state-ended {
  background-image: url('../assets/bg_ended.jpg');
}
#stage {
  height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 20px;
}

/* 🌟 最上段真ん中の目立たない端末ID表示バッジ  */
#device-badge {
  position: fixed;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 20;
  background: var(--badge-bg);
  backdrop-filter: blur(4px);
  border: 1px solid var(--badge-border);
  color: var(--badge-color);
  font-family: monospace;
  font-size: 11px;
  padding: 3px 12px;
  border-radius: 12px;
  pointer-events: none; /* タップの邪魔にならないように透過 */
  letter-spacing: 0.5px;
}

/* スタート画面用スタイル */
#start-screen h1 {
  font-size: 6vw;
  margin-bottom: 40px;
  text-shadow: 0 4px 10px rgba(0,0,0,0.5);
}
#start-button {
  font-size: 6vw;
  padding: 0.8em 2.2em;
  border-radius: 50px;
  border: none;
  background: linear-gradient(135deg, #ff7a18, #ffb400);
  color: #fff;
  font-weight: bold;
  cursor: pointer;
  box-shadow: 0 10px 30px rgba(255,150,0,0.4);
  outline: none;
  transition: transform 0.15s;
}
#start-button:active { transform: scale(0.95); }

/* くじ引きボタン */
#draw-button {
  font-size: 6vw;
  padding: 0.8em 2.5em;
  border-radius: 50px;
  border: none;
  background: linear-gradient(135deg, #ff416c, #ff4b2b);
  color: #fff;
  font-weight: bold;
  cursor: pointer;
  box-shadow: 0 10px 40px rgba(255,60,60,0.5);
  transition: transform 0.15s;
  outline: none;
}
#draw-button:active { transform: scale(0.95); }
#draw-button .btn-icon {
  width: 1.2em;
  height: 1.2em;
  object-fit: contain;
}

#result-screen { display: none; }
#result-screen.win .result-box { color: var(--win-color); }
#result-screen.lose .result-box { color: var(--lose-color); }

.result-box {
  font-size: 10vw;
  font-weight: 900;
  animation: pop 0.4s ease-out;
  /* color: #ffb400; */
}
.result-sub {
  font-size: 5vw;
  margin-top: 20px;
  font-weight: bold;
  color: var(--text-sub);
}
.result-id {
  font-size: 1.5vw;
  margin-top: 10px;
  font-family: monospace;
  color: var(--text-id);
}
.result-icon {
  display: inline-block;
  height: 1.2em;
  vertical-align: -0.2em;
  margin: 0 8px;
}

@keyframes pop {
  0% { transform: scale(0.3); opacity: 0; }
  70% { transform: scale(1.15); opacity: 1; }
  100% { transform: scale(1); }
}

/* 抽選中の演出画面用CSS */
#roulette-screen {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.roulette-text {
  font-size: 10vw;
  font-weight: 900;
  color: #ffb400;
  text-shadow: 0 0 20px rgba(255, 180, 0, 0.6);
  animation: pulse-shake 0.3s infinite ease-in-out alternate;
}

@keyframes pulse-shake {
  0% { transform: scale(0.95) translate(-2px, 1px); opacity: 0.8; }
  50% { transform: scale(1.05) translate(2px, -1px); opacity: 1; }
  100% { transform: scale(1) translate(-1px, -2px); opacity: 0.9; }
}

#confetti-layer {
  position: fixed; inset: 0; pointer-events: none; overflow: hidden; display: none;
  z-index: 5;
}
.confetti {
  position: absolute; top: -10px; width: 10px; height: 16px; opacity: 0.9;
  animation: fall linear forwards;
}
@keyframes fall {
  to { transform: translateY(110vh) rotate(360deg); opacity: 0.6; }
}

/* 誤操作防止用のガード */
#interaction-shield {
  position: fixed;
  inset: 0;
  background: transparent;
  z-index: 10;
  display: none;
}

#history-panel {
  position: fixed;
  bottom: 15px;
  left: 15px;
  right: 15px;
  display: none;
  align-items: center;
  gap: 1.4vw;
  background: var(--history-panel-bg);
  backdrop-filter: blur(4px);
  border-radius: 16px;
  padding: 0.7vw 1.6vw;
  z-index: 15;
}
#history-panel-header {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.4vw;
  flex: 0 0 auto;
}

#history-list {
  display: flex;
  flex-direction: row;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 1vw;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  flex: 1 1 auto;
  min-width: 0;
}
#history-list li {
  flex: 0 0 calc((100% - 4 * 1vw) / 5);
  box-sizing: border-box;
  text-align: center;
  font-size: 1.8vw;
  padding: 0.4vw 0.4vw;
  color: var(--history-item-color);
  border-right: 1px solid var(--history-item-border);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
#history-list li:last-child {
  border-right: none;
}
#history-list li.win { color: var(--win-color); font-weight: bold; }
#history-list li.miss { color: var(--history-miss-color); }

/* スタッフ用リセットボタン（右上） */
#again-button {
  position: fixed;
  top: 15px;
  right: 15px;
  font-size: 11px;
  padding: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.15);
  background: rgba(255, 255, 255, 0.05);
  color: rgba(255,255,255,0.3);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 20;
  outline: none;
  transition: background 0.15s, color 0.15s;
}
#again-button:active {
  background: rgba(255,255,255,0.25);
  color: #fff;
}