/* ゲームパーク 共通の見た目(全ゲームのページで読む)
   文字は rem、スマホの高さは vw と rem だけで決める(vh/svh はLINE内でページが伸び縮みするため使わない) */
:root{
  --bg1:#2c5560; --bg2:#16303a; --bg3:#122631;
  --card:#fff7e8; --card-line:#efe2cb; --ink:#1f2b33; --sub:#6b6157;
  --coral:#ef7a62; --coral-ink:#3a1a12; --wood1:#e7c79c; --wood2:#b98d5d;
  --ok:#2f8a5a; --ng:#c8412f;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0; min-height:100%;
  font-family:"Hiragino Sans","Hiragino Kaku Gothic ProN","Noto Sans JP","Yu Gothic UI","Meiryo",sans-serif;
  color:#eef6f7; overflow-wrap:break-word; word-break:normal;
  background:radial-gradient(60rem 30rem at 12% 0%, var(--bg1), var(--bg2) 60%) no-repeat, var(--bg3);
  -webkit-tap-highlight-color:transparent;
}
a{color:inherit}
.wrap{max-width:44rem; margin:0 auto; padding:1rem 1rem 1.5rem}

/* 上の帯: ← もどる / 題名 / 数(手数など) */
.top{display:flex; flex-wrap:wrap; align-items:center; gap:.5rem .75rem; margin-bottom:.9rem}
.back{
  display:inline-flex; align-items:center; min-height:2.75rem; padding:.4rem .9rem;
  border-radius:.6rem; border:1px solid rgba(255,255,255,.22); background:rgba(255,255,255,.08);
  text-decoration:none; font-weight:700; font-size:.95rem;
}
.top h1{flex:1 1 auto; font-size:1.35rem; margin:0; letter-spacing:.04em}
.counter{
  display:flex; align-items:center; gap:.5rem; margin-left:auto;
  border:1px solid rgba(255,255,255,.18); background:rgba(255,255,255,.06);
  border-radius:.6rem; padding:.35rem .8rem; min-height:2.75rem;
}
.counter span{font-size:.8rem; opacity:.85}
.counter b{font-size:1.2rem; font-variant-numeric:tabular-nums}

.card{background:var(--card); color:var(--ink); border-radius:1rem; box-shadow:0 1.2rem 2.5rem rgba(0,0,0,.35); overflow:hidden}
.card-head{display:flex; flex-wrap:wrap; justify-content:space-between; align-items:flex-start; gap:.5rem 1rem; padding:.9rem 1.2rem; border-bottom:1px solid var(--card-line)}
.card-head h2{font-size:1.1rem; margin:0 0 .2rem}
.card-head p{font-size:.85rem; margin:0; color:var(--sub)}
.card-foot{display:flex; flex-wrap:wrap; align-items:center; justify-content:space-between; gap:.6rem 1rem; padding:.9rem 1.2rem; border-top:1px solid var(--card-line)}
.msg{flex:1 1 14rem}
.msg b{display:block; font-size:.95rem; margin-bottom:.15rem}
.msg small{font-size:.8rem; color:var(--sub)}
.msg.win b{color:var(--ok)}
.msg.bad b{color:var(--ng)}
.btns{display:flex; flex-wrap:wrap; gap:.5rem}
button.b{
  min-height:2.75rem; min-width:2.75rem; padding:.5rem 1rem; border-radius:.55rem;
  font:inherit; font-size:.92rem; font-weight:700; cursor:pointer;
}
.b-ghost{background:#fff; color:var(--ink); border:1px solid #e3d8c6}
.b-ghost:disabled{color:#b3a999; cursor:default}
.b-main{background:var(--coral); color:var(--coral-ink); border:1px solid #e36a51}

/* 新しいゲームの選び方(1問だけ出す) */
.choose{display:none; padding:.9rem 1.2rem; border-top:1px solid var(--card-line)}
.choose.open{display:block}
.choose p{margin:0 0 .6rem; font-weight:700}
.choose .btns .b{flex:1 1 8rem}

.hint{text-align:center; font-size:.8rem; opacity:.8; margin:.9rem 0 0}
footer{text-align:center; font-size:.8rem; opacity:.7; margin-top:1.2rem}

.shake{animation:shake .3s}
@keyframes shake{0%,100%{transform:translateX(0)}25%{transform:translateX(-.25rem)}75%{transform:translateX(.25rem)}}

@media (max-width:36rem){
  .wrap{padding:.6rem .6rem .5rem}
  .top{margin-bottom:.5rem; gap:.4rem}
  .back{padding:.3rem .7rem; font-size:.9rem}
  .top h1{font-size:1.1rem}
  .counter{padding:.25rem .6rem}
  .card{border-radius:.8rem}
  .card-head{display:none}
  .card-foot{padding:.5rem .75rem .6rem; gap:.4rem}
  .msg{flex:1 1 100%}
  .msg b{font-size:.9rem; margin-bottom:.1rem}
  .msg small{font-size:.78rem}
  .btns{flex:1 1 100%}
  .card-foot .btns .b{flex:1 1 0; padding:.5rem .4rem}
  .choose{padding:.6rem .75rem}
  .hint{display:none}
  footer{margin-top:.4rem}
}