/* 脳トレゲーム「からっぽの 箱は どれ？」（akibako）。クラスは gm-akibako- で 始める。決まりは docs/games-contract.md
   2026-10-09: 夜の 里の 見た目（夜の 社の 板の 間・漆と 金の 千両箱・クラゲ号・タイシカの 立ち絵・当たり／おしい の 見出し） */
.gm-akibako-body { gap: 4px; padding-top: 4px; padding-bottom: 4px; overflow: hidden; }

/* 5回の 進み具合（○×と 数字。色だけに しない） */
.gm-akibako-hud { flex: none; display: flex; justify-content: flex-end; position: relative; z-index: 3; }
.gm-akibako-dots { display: flex; gap: 5px; margin: 0; padding: 0; list-style: none; }
.gm-akibako-dot { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; font-weight: 700; font-size: var(--fs-sm); line-height: 1;
  background: radial-gradient(circle at 35% 30%, #4a3a7a, #241a4a); color: #cdbbf0; box-shadow: inset 0 0 0 2px #8a74c4; }
.gm-akibako-dot.is-now { background: radial-gradient(circle at 35% 30%, #fff3b0, #f2b830); color: #5a3208; box-shadow: 0 0 0 2px #fff, 0 0 10px 2px rgb(255 214 90 / .8); }
.gm-akibako-dot.is-hit { background: radial-gradient(circle at 35% 30%, #8ff09a, #23a04a); color: #fff; font-size: var(--fs-lg); box-shadow: inset 0 0 0 2px #e6ffe8; text-shadow: 0 1px 1px #145a2a; }
.gm-akibako-dot.is-miss { background: radial-gradient(circle at 35% 30%, #ffc48a, #d9661a); color: #fff; font-size: var(--fs-lg); box-shadow: inset 0 0 0 2px #ffe8d4; text-shadow: 0 1px 1px #7a3008; }

/* タイシカ（立ち絵）と 1行の セリフ */
.gm-akibako-host { flex: none; display: flex; align-items: flex-end; gap: 2px; margin-top: -6px; margin-bottom: -10px; position: relative; z-index: 2; pointer-events: none; }
.gm-akibako-host-img { flex: none; width: 70px; height: auto; filter: drop-shadow(0 3px 4px rgb(0 0 0 / .5)); transform-origin: 50% 100%; }
.gm-akibako-host-img.is-hop { animation: gm-akibako-hop .5s cubic-bezier(.3, 1.6, .5, 1); }
@keyframes gm-akibako-hop { 40% { transform: translateY(-10px) scale(1.06, .96); } }
.gm-akibako-talk { flex: 1; min-width: 0; margin-bottom: 14px; }
.gm-akibako-talk .speech { margin: 0; }
.gm-akibako-talk .bubble { padding: 8px 12px; font-size: var(--fs-md); line-height: 1.4; }
.gm-akibako-talk .speaker { display: none; }

/* 舞台: 漆と 金の 枠（tray）の 中に 夜の 社の 板の 間。座標は JS（layout）で px に して 置く */
.gm-akibako-frame { flex: 1 1 auto; min-height: 200px; border: 16px solid transparent; border-image: url('../assets/ui/skin/tray.webp') 110 fill / 16px stretch; filter: drop-shadow(0 6px 10px rgb(0 0 0 / .5)); display: flex; }
.gm-akibako-stage { --bw: 80px; position: relative; flex: 1; overflow: hidden; border-radius: 10px; background: #1b1640; box-shadow: inset 0 0 0 2px rgb(255 214 120 / .5); isolation: isolate; -webkit-user-select: none; user-select: none; touch-action: manipulation; }
.gm-akibako-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 50% 70%; pointer-events: none; }
.gm-akibako-ship {
  position: absolute; left: 50%; top: 6px; z-index: 4;
  width: 76px; height: auto; aspect-ratio: 300 / 321;
  transform: translateX(-50%);
  filter: drop-shadow(0 0 10px rgb(170 220 255 / .55)) drop-shadow(0 5px 6px rgb(0 0 0 / .4));
  animation: gm-akibako-float 3.2s ease-in-out infinite;
  pointer-events: none;
}
@keyframes gm-akibako-float { 50% { transform: translateX(-50%) translateY(5px); } }
.gm-akibako-ship.is-shoot { animation: gm-akibako-shoot .3s ease-out; }
@keyframes gm-akibako-shoot { 30% { transform: translateX(-50%) scale(1.1, .86); } 65% { transform: translateX(-50%) scale(.96, 1.06); } }
.gm-akibako-boxes { position: absolute; inset: 0; z-index: 2; }
.gm-akibako-fly { position: absolute; inset: 0; z-index: 6; pointer-events: none; }
.gm-akibako-chibi { position: absolute; left: 0; top: 0; width: 64px; height: auto; aspect-ratio: 1; opacity: 0; will-change: transform; filter: drop-shadow(0 3px 3px rgb(10 5 30 / .55)); }

/* 箱（千両箱の 絵 2枚: 閉じた／開いた）。button 全体が 押せる */
.gm-akibako-box {
  position: absolute; left: 0; top: 0;
  width: var(--bw); height: calc(var(--bw) * 1.144); min-height: 48px;
  padding: 0; border: 0; background: none; color: inherit;
  display: block; cursor: default; opacity: 1;
  will-change: transform;
  -webkit-tap-highlight-color: transparent;
}
.gm-akibako-box:not(:disabled) { cursor: pointer; }
.gm-akibako-box:focus-visible { outline: 3px solid #fff3a8; outline-offset: 2px; border-radius: 12px; }
.gm-akibako-chest { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; pointer-events: none; transform-origin: 50% 100%; filter: drop-shadow(0 5px 4px rgb(10 5 30 / .55)); }
.gm-akibako-chest-open { visibility: hidden; }
.gm-akibako-box.is-gulp .gm-akibako-chest-open, .gm-akibako-box.is-open .gm-akibako-chest-open { visibility: visible; }
.gm-akibako-box.is-gulp .gm-akibako-chest-shut, .gm-akibako-box.is-open .gm-akibako-chest-shut { visibility: hidden; }
.gm-akibako-box.is-bump .gm-akibako-chest { animation: gm-akibako-bump .34s ease-out; }
@keyframes gm-akibako-bump { 35% { transform: scale(1.1, .88); } 70% { transform: scale(.97, 1.05); } }

/* 番号と 紋の 札（箱の 下の ほう） */
.gm-akibako-tag { position: absolute; left: 50%; bottom: -4px; z-index: 5; transform: translateX(-50%); display: inline-flex; align-items: center; gap: 2px; padding: 1px 6px 1px 7px; border-radius: 999px;
  background: linear-gradient(180deg, #fffaf0, #f3dfb4); box-shadow: 0 0 0 2px #a8761e, 0 2px 4px rgb(0 0 0 / .4); color: #3a2312; font-weight: 700; font-size: clamp(13px, calc(var(--bw) * .2), 18px); line-height: 1.2; white-space: nowrap; }
.gm-akibako-tag svg { width: 1em; height: 1em; }

/* 中の 仲間（ふたが 開いた ときだけ 見える。箱の 口の 縁から 顔を 出す） */
.gm-akibako-peek {
  position: absolute; left: 6%; right: 6%; top: -30%; height: 74%;
  z-index: 1; display: flex; justify-content: center; align-items: flex-end; overflow: hidden;
  visibility: hidden;
}
.gm-akibako-peek img { height: 82%; width: auto; aspect-ratio: 1; object-fit: contain; transform: translateY(70%); transition: transform .3s cubic-bezier(.3, 1.5, .5, 1); filter: drop-shadow(0 2px 2px rgb(0 0 0 / .4)); }
.gm-akibako-peek img + img { margin-left: -24%; }
.gm-akibako-box.is-open .gm-akibako-peek { visibility: visible; }
.gm-akibako-box.is-open .gm-akibako-peek img { transform: translateY(8%); transition-delay: .08s; }
/* 箱の 前の 縁より 下に 仲間が 見えない ように、開いた 箱の 前の 面を もう一度 重ねる（下 6割） */
.gm-akibako-box.is-open .gm-akibako-chest-open { z-index: 0; }

/* 入った 数（答え合わせで 出す。2体 入った 箱が わかる） */
.gm-akibako-count-in {
  position: absolute; right: -6px; top: 34%; z-index: 6;
  padding: 0 6px; border-radius: 999px;
  background: #fff8e9; box-shadow: 0 0 0 2px #c9a24f; color: #3a2312;
  font-weight: 700; font-size: 13px; line-height: 1.4;
  visibility: hidden;
}
.gm-akibako-box.is-open .gm-akibako-count-in { visibility: visible; }

/* 答えを 待つ 間: 箱が 少し 光って はずむ */
.gm-akibako-boxes.is-ask .gm-akibako-chest { filter: drop-shadow(0 0 4px #fff6c8) drop-shadow(0 0 10px rgb(255 214 90 / .7)) drop-shadow(0 5px 4px rgb(10 5 30 / .5)); }
.gm-akibako-boxes.is-ask .gm-akibako-box { animation: gm-akibako-wait 1.4s ease-in-out infinite; }
.gm-akibako-boxes.is-ask .gm-akibako-box:nth-child(2n) { animation-delay: .35s; }
.gm-akibako-boxes.is-ask .gm-akibako-box:active .gm-akibako-chest { transform: scale(.94); }
@keyframes gm-akibako-wait { 50% { translate: 0 -3px; } }

/* 答え合わせ（選んだ 箱と 空の 箱は 隣の 箱より 手前に） */
.gm-akibako-box.is-hit, .gm-akibako-box.is-miss { z-index: 8; }
.gm-akibako-box.is-answer { z-index: 7; }
.gm-akibako-box.is-answer::before {
  content: ''; position: absolute; left: 50%; top: 45%; z-index: -1; width: 210%; aspect-ratio: 1; transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgb(255 236 150 / .95) 0 12%, rgb(255 200 60 / .55) 30%, rgb(255 180 0 / 0) 62%);
  animation: gm-akibako-glow 1.4s ease-in-out infinite; pointer-events: none;
}
.gm-akibako-box.is-answer .gm-akibako-chest { filter: drop-shadow(0 0 4px #fff) drop-shadow(0 0 12px #ffd23a); }
@keyframes gm-akibako-glow { 50% { opacity: .65; transform: translate(-50%, -50%) scale(1.08); } }
.gm-akibako-box.is-miss .gm-akibako-chest { animation: gm-akibako-shake .45s ease-out; }
@keyframes gm-akibako-shake { 20% { transform: translateX(-6px) rotate(-4deg); } 45% { transform: translateX(5px) rotate(3deg); } 70% { transform: translateX(-3px); } }
.gm-akibako-mark {
  position: absolute; left: -8px; top: 10%; z-index: 9;
  display: none; place-items: center; width: 46px; height: 46px; border-radius: 50%;
  background: #fff; font-weight: 700; font-size: 1.8rem; line-height: 1; box-shadow: 0 0 0 4px currentColor, 0 4px 8px rgb(0 0 0 / .45);
  pointer-events: none;
}
.gm-akibako-box.is-hit .gm-akibako-mark, .gm-akibako-box.is-miss .gm-akibako-mark { display: grid; animation: gm-akibako-pop .3s cubic-bezier(.3, 1.6, .5, 1) both; }
.gm-akibako-box.is-hit .gm-akibako-mark { color: #1f8a44; }
.gm-akibako-box.is-miss .gm-akibako-mark { color: #c25a0a; }
@keyframes gm-akibako-pop { from { transform: scale(.4); opacity: 0; } to { transform: scale(1); opacity: 1; } }

/* 粒と 見出し（画像） */
.gm-akibako-fx { position: absolute; inset: 0; z-index: 10; pointer-events: none; }
.gm-akibako-spark { position: absolute; width: 18px; height: 18px; margin: -9px 0 0 -9px; border-radius: 50%; opacity: 0;
  background: radial-gradient(circle, #fff 0 20%, #ffe36a 35%, rgb(255 190 40 / 0) 70%); animation: gm-akibako-spark .7s ease-out forwards; }
.gm-akibako-spark.is-gold:nth-child(3n) { width: 26px; height: 26px; margin: -13px 0 0 -13px; }
.gm-akibako-spark.is-dust { width: 12px; height: 12px; margin: -6px 0 0 -6px; background: radial-gradient(circle, #fffbe8 0 25%, rgb(255 240 200 / 0) 70%); animation-duration: .45s; }
@keyframes gm-akibako-spark { 0% { opacity: 1; transform: translate(0, 0) scale(.4); } 70% { opacity: 1; } 100% { opacity: 0; transform: translate(var(--dx), var(--dy)) scale(1); } }
.gm-akibako-banner { position: absolute; left: 50%; top: 32%; z-index: 12; width: 74%; max-width: 340px; height: auto; pointer-events: none; opacity: 0; transform: translate(-50%, -50%) scale(.4); filter: drop-shadow(0 4px 8px rgb(10 5 30 / .6)); }
.gm-akibako-banner.is-on { animation: gm-akibako-banner 1.25s cubic-bezier(.3, 1.5, .5, 1) forwards; }
.gm-akibako-banner.is-miss { width: 62%; }
@keyframes gm-akibako-banner { 0% { opacity: 0; transform: translate(-50%, -50%) scale(.4) rotate(-6deg); } 25% { opacity: 1; transform: translate(-50%, -50%) scale(1.08) rotate(0); } 40% { transform: translate(-50%, -50%) scale(1); } 75% { opacity: 1; } 100% { opacity: 0; transform: translate(-50%, -64%) scale(1); } }

/* ドックの 主ボタン（文字ごと 画像）と、待つ 間の 札（押せない） */
.gm-akibako-main { min-height: 64px; font-size: var(--fs-lg); touch-action: manipulation; -webkit-user-select: none; user-select: none; }
.gm-akibako-main.is-img, .gm-akibako-main.is-img:active { width: min(100%, 380px); margin: 0 auto; color: transparent; text-shadow: none; background-color: transparent; background-position: center; background-size: contain; background-repeat: no-repeat; border: 0; box-shadow: none; filter: drop-shadow(0 4px 6px rgb(0 0 0 / .4)); }
.gm-akibako-main.is-img:active { transform: translateY(3px) scale(.98); }
.gm-akibako-main.is-wait, .gm-akibako-main.is-wait:disabled { opacity: 1; background: rgb(20 12 50 / .62); color: #fff3d6; box-shadow: inset 0 0 0 2px rgb(255 214 120 / .55); transform: none; cursor: default; }

/* 文字「大」「特大」: セリフを 詰め、箱の 舞台を 残す */
html.text-large .gm-akibako-talk .bubble, html.text-xlarge .gm-akibako-talk .bubble { font-size: var(--fs-sm); line-height: 1.4; }
html.text-xlarge .gm-akibako-host-img { width: 58px; }
html.text-xlarge .gm-akibako-dot { width: 26px; height: 26px; font-size: var(--fs-xs); }
html.text-xlarge .gm-akibako-frame { min-height: 170px; }
@media (max-height: 660px) {
  .gm-akibako-host-img { width: 58px; }
  .gm-akibako-frame { border-width: 12px; border-image-width: 12px; }
}

/* 動きを 減らす: 飾りの 動き（クラゲ号の ゆれ・箱の はずみ・見出しの 跳ね・粒）を 止める */
.gm-akibako-slow .gm-akibako-ship, .gm-akibako-slow .gm-akibako-box, .gm-akibako-slow .gm-akibako-chest, .gm-akibako-slow .gm-akibako-host-img, .gm-akibako-slow .gm-akibako-box.is-answer::before, .gm-akibako-slow .gm-akibako-mark { animation: none !important; }
.gm-akibako-slow .gm-akibako-banner.is-on { animation: gm-akibako-fade 1.25s ease-out forwards; }
@keyframes gm-akibako-fade { 0% { opacity: 0; transform: translate(-50%, -50%); } 20%, 75% { opacity: 1; transform: translate(-50%, -50%); } 100% { opacity: 0; transform: translate(-50%, -50%); } }
@media (prefers-reduced-motion: reduce) {
  .gm-akibako-ship, .gm-akibako-box, .gm-akibako-chest, .gm-akibako-host-img, .gm-akibako-box.is-answer::before { animation: none !important; }
}

.gm-akibako-fxdot { position: absolute; width: 2px; height: 2px; pointer-events: none; }