* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
}

:root {
  --ink: #2b2725;      /* ロゴの黒 */
  --green: #2f7d3b;
  --yellow: #e2b22d;
  --red: #c8302c;
  /* ロゴの大きさ（画面の高さ80%、ただし横幅の45%まで） */
  --logo-h: min(80vh, 45vw);
  --logo-w: calc(var(--logo-h) * 0.819);
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  color: var(--ink);
  font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", system-ui, sans-serif;
  touch-action: manipulation;
}

/* ===== 背景（コンクリート） =====
   images/background.jpg を差し替えると背景が変わります */
body {
  background: #dcdcda url("images/background.jpg") center / cover no-repeat;
}

/* ===== ステージ ===== */
#stage {
  position: fixed;
  inset: 0;
  cursor: pointer;
}

/* 左：ロゴ */
#logo {
  position: absolute;
  left: max(3vw, env(safe-area-inset-left));
  top: 50%;
  height: var(--logo-h);
  width: var(--logo-w);
  transform: translateY(-50%);
  pointer-events: none;
}

/* 右：数字エリア */
#panel {
  position: absolute;
  top: 0;
  bottom: 0;
  left: calc(max(3vw, env(safe-area-inset-left)) + var(--logo-w) + 2vw);
  right: env(safe-area-inset-right);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

#message {
  position: absolute;
  top: max(4vh, env(safe-area-inset-top));
  margin-top: 7vh;
  font-size: clamp(14px, 4.2vh, 34px);
  font-weight: 800;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

/* 数字のフォント：Anton（Google Fonts）。読み込めない場合は太いゴシックで表示 */
#number, #history li {
  font-family: "Anton", "Hiragino Sans", "Noto Sans JP", system-ui, sans-serif;
}

#number {
  font-size: 60vh;
  line-height: 1;
  color: var(--ink);
  text-shadow: 0 0.6vh 0 rgba(0,0,0,0.12);
  transform: translateY(1vh);
}

#number.rolling {
  animation: shake 0.1s infinite;
}

#number.decided,
#number.decided-static {
  color: var(--red);
}

#number.decided {
  animation: pop 0.6s cubic-bezier(.2,1.6,.4,1);
}

#number.idle {
  opacity: 0.35;
}

@keyframes shake {
  0%   { transform: translate(-0.4vh, 1vh); }
  50%  { transform: translate(0.4vh, 0.6vh); }
  100% { transform: translate(-0.4vh, 1vh); }
}

@keyframes pop {
  0%   { transform: translateY(1vh) scale(0.4); }
  60%  { transform: translateY(1vh) scale(1.15); }
  100% { transform: translateY(1vh) scale(1); }
}

/* フラッシュ演出 */
.flash::after {
  content: "";
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at 70% 50%, rgba(255,255,255,0.9) 0%, rgba(255,255,255,0) 65%);
  animation: flash 0.5s ease-out forwards;
  pointer-events: none;
}
@keyframes flash {
  from { opacity: 1; }
  to   { opacity: 0; }
}

/* ===== 履歴（出た順） ===== */
#history {
  position: absolute;
  bottom: max(4vh, env(safe-area-inset-bottom));
  display: flex;
  gap: 1vw;
  list-style: none;
}

#history li {
  --size: min(9vh, 4.5vw);
  width: var(--size);
  height: var(--size);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: calc(var(--size) * 0.58);
  border: 0.35vh dashed rgba(43,39,37,0.35);
  color: transparent;
}

#history li.filled {
  background: var(--ink);
  border: none;
  color: #f2f1ee;
}

#history li.current {
  background: var(--red);
}

#history li.latest {
  animation: pop 0.5s cubic-bezier(.2,1.6,.4,1);
}


/* ===== 操作ボタン ===== */
.controls {
  position: fixed;
  top: max(2vh, env(safe-area-inset-top));
  display: flex;
  gap: 8px;
  z-index: 10;
}

#controls { right: max(2vw, env(safe-area-inset-right)); }

.controls button {
  font: inherit;
  font-size: clamp(11px, 2.6vh, 16px);
  font-weight: 700;
  color: #fff;
  background: rgba(43,39,37,0.85);
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 999px;
  padding: 0.6em 1em;
  cursor: pointer;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.controls button:active {
  background: var(--red);
}

.controls button:disabled {
  opacity: 0.35;
  cursor: default;
}

/* 一定時間操作が無いとボタンを薄くする（本番中に目立たないように） */
body.controls-dim .controls {
  opacity: 0.25;
  transition: opacity 0.6s;
}

/* ===== 確認ダイアログ ===== */
.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.6);
}
.modal[hidden] { display: none; }

.modal-box {
  background: #fff;
  color: #222;
  border-radius: 16px;
  padding: 28px 32px;
  text-align: center;
  font-size: 20px;
  font-weight: 700;
  max-width: 90vw;
}
.modal-box small {
  font-size: 14px;
  font-weight: 400;
  color: #666;
}
.modal-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-top: 20px;
}
.modal-actions button {
  font: inherit;
  font-size: 18px;
  padding: 10px 24px;
  border-radius: 999px;
  border: 1px solid #ccc;
  background: #f2f2f2;
  cursor: pointer;
}
.modal-actions button.danger {
  background: #e5484d;
  border-color: #e5484d;
  color: #fff;
}

/* ===== 縦画面の案内 ===== */
#rotate {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 200;
  background: #111;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  font-size: 20px;
  font-weight: 700;
}
.rotate-icon { font-size: 64px; }

@media (orientation: portrait) and (max-width: 1024px) {
  #rotate { display: flex; }
}