:root{
  --bg:#0b1020;
  --text:#e9ecff;
  --muted:#aab1da;
  --line:rgba(255,255,255,.10);
  --shadow: 0 12px 40px rgba(0,0,0,.35);
  --radius: 18px;

  /* カードサイズ管理 */
  --card-w: 170px;
  --side-pad: 14px;
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic", sans-serif;
  color:var(--text);

  background:
    radial-gradient(1200px 700px at 20% 0%, rgba(152,106,255,.25), transparent 60%),
    radial-gradient(1000px 600px at 90% 20%, rgba(84,214,255,.18), transparent 60%),
    var(--bg);
  background-attachment: fixed;
  background-repeat: no-repeat;
  background-size: cover;

  min-height: 100vh;
}

.app{ max-width:1100px; margin:0 auto; padding:18px; }

/* ===== Header ===== */
.header{
  display:flex; align-items:center; justify-content:space-between;
  gap:14px;
  margin-bottom:16px;
}
.brand{ display:flex; align-items:flex-start; gap:12px; }
.logo{
  width:44px; height:44px; display:grid; place-items:center;
  background: rgba(255,255,255,.08);
  border:1px solid var(--line);
  border-radius:14px;
  box-shadow: var(--shadow);
}
.titlewrap h1{ margin:0; font-size:20px; letter-spacing:.5px; }
.subtitle{ margin:8px 0 0; color:var(--muted); font-size:12px; }
.muted{ color: var(--muted); margin:8px 0 0; }

/* ===== Layout ===== */
.main{
  display:grid;
  grid-template-columns: 360px 1fr;
  gap:16px;
}
@media (max-width: 980px){
  .main{ grid-template-columns: 1fr; }
  .app{ padding: 14px; }
}
@media (max-width: 640px){
  .app{ padding: 12px; }
}

/* ===== Panels ===== */
.panel, .table, .result, .history{
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
  border:1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.panel{
  padding:16px;
  position: sticky;
  top: 14px;
  height: fit-content;
}
@media (max-width: 980px){
  .panel{ position: static; }
}

.table{ padding:16px; }
@media (max-width: 640px){
  .table{ padding: 12px; }
}

.panel h2, .table h2, .history h2, .result h2{
  margin:0 0 12px;
  font-size:14px;
  color: #dfe3ff;
  letter-spacing:.4px;
}

/* ===== Topic buttons ===== */
.topicRow{
  display:grid;
  grid-template-columns: repeat(2, 1fr);
  gap:10px;
  margin-bottom:12px;
}
.topicBtn{
  padding:12px 10px;
  border-radius:14px;
  border:1px solid var(--line);
  background: rgba(255,255,255,.06);
  color: var(--text);
  cursor:pointer;
  font-weight:700;
  transition: transform .12s ease, background .12s ease;
}
.topicBtn:hover{ transform: translateY(-1px); background: rgba(255,255,255,.10); }
.topicBtn.active{
  background: rgba(152,106,255,.25);
  border-color: rgba(152,106,255,.5);
}

/* ===== Spread / toggles ===== */
.spreadRow{
  display:flex;
  gap:12px;
  align-items:flex-end;
  justify-content:space-between;
  margin:12px 0 10px;
  flex-wrap:wrap;
}
.spreadSelect label{ display:block; font-size:12px; color:var(--muted); margin-bottom:6px; }

select{
  width: 220px;
  max-width: 100%;
  padding:10px 10px;
  border-radius:14px;
  border:1px solid var(--line);
  background: rgba(0,0,0,.25);
  color: var(--text);
}

.toggles{ display:flex; gap:12px; }
.toggle{
  display:flex; gap:8px; align-items:center;
  font-size:12px; color:var(--muted);
  user-select:none;
}
.toggle input{ transform: scale(1.1); }

.ctaRow{ display:flex; gap:10px; margin-top:10px; flex-wrap:wrap; }
.btn{
  padding:10px 12px;
  border-radius:14px;
  border:1px solid var(--line);
  background: rgba(255,255,255,.06);
  color: var(--text);
  cursor:pointer;
  font-weight:800;
  letter-spacing:.3px;
  transition: transform .12s ease, background .12s ease, opacity .12s ease;
}
.btn:hover{ transform: translateY(-1px); background: rgba(255,255,255,.10); }
.btn:disabled{ opacity:.45; cursor:not-allowed; transform:none; }
.btn.primary{
  background: rgba(84,214,255,.18);
  border-color: rgba(84,214,255,.35);
}
.btn.ghost{ background: transparent; }

.status{ margin:12px 0 0; color:var(--muted); font-size:12px; }

/* ===== Deck area ===== */
.deckArea{
  display:grid;
  grid-template-columns: auto 1fr;
  gap:16px;
  align-items:start;
  margin-top:10px;
}

.deckStack{
  position:relative;
  width: var(--card-w);
  flex: 0 0 auto;
}
.deckStack img{
  width: 100%;
  aspect-ratio: 2 / 3;
  height:auto;
  border-radius:16px;
  border:1px solid var(--line);
  box-shadow: 0 10px 30px rgba(0,0,0,.35);
}
.deckBadge{
  position:absolute;
  bottom:-8px; right:-8px;
  background: rgba(0,0,0,.55);
  border:1px solid var(--line);
  border-radius: 999px;
  padding:6px 10px;
  font-size:12px;
  color: var(--text);
}

/* ===== slots layout ===== */
#slots, .slots{
  display:grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  align-items:start;
}

.slot{
  padding: 12px;
  border-radius: 18px;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.10);
}

.slotTitle{
  font-size:12px;
  color: var(--muted);
  margin:0 0 8px;
}

/* =========================================================
   ✅ FLIP（2D・回転ゼロ）
   - 画像（SVG）には一切 rotate を掛けない
   - “上下逆(180°)” は絶対に発生しない
   ========================================================= */
.card{
  position:relative;
  width:100%;
  aspect-ratio: 2/3;
  border-radius:16px;
  overflow:hidden;
  background: rgba(0,0,0,.2);
  border:1px solid var(--line);
  box-shadow: 0 10px 30px rgba(0,0,0,.28);
}

.cardInner{
  position:absolute;
  inset:0;
}

.face{
  position:absolute;
  inset:0;
  display:block;
  opacity: 1;
  transition: opacity .22s ease, transform .22s ease;
  transform: none;
}

.face.front{
  opacity: 0;
  transform: scale(.98);
}

.card.flipped .face.front{
  opacity: 1;
  transform: scale(1);
}
.card.flipped .face.back{
  opacity: 0;
  transform: scale(1.02);
}

/* ✅ 画像は“そのまま”表示（回転を完全禁止） */
.face img{
  width:100%;
  height:100%;
  display:block;
  object-fit: cover;            /* PC: 基本はcover */
  transform: none !important;   /* rotate等を全禁止 */
  -webkit-transform: none !important;
}

/* スマホはカード全体を必ず入れる（トリミングしない） */
@media (max-width: 980px){
  .face img{ object-fit: contain; }
}

/* 逆位置クラスが付いても画像は回さない（ラベルだけで表現） */
.card.reversed .face.front img{
  transform: none !important;
  -webkit-transform: none !important;
}

/* ===== Meta ===== */
.cardMeta{
  margin-top:8px;
  font-size:12px;
  color: var(--muted);
  line-height:1.5;
}
.badge{
  display:inline-flex;
  padding:2px 8px;
  border-radius:999px;
  border:1px solid var(--line);
  margin-right:6px;
  color: #e9ecff;
  background: rgba(255,255,255,.06);
}
.rotateTag{ margin-left:6px; opacity:.9; }

/* ===== Result / History ===== */
.result{ margin-top:16px; padding:14px; }
@media (max-width: 640px){ .result{ padding: 12px; } }

.resultBody{ color: var(--text); }
.resultBody p{ margin:0 0 10px; }
.resultBody .muted{ color: var(--muted); }
.resultActions{ display:flex; gap:10px; flex-wrap:wrap; margin-top:10px; }

.history{ margin-top:14px; padding:14px; }
@media (max-width: 640px){ .history{ padding: 12px; } }

.historyList{ display:flex; flex-direction:column; gap:10px; }
.historyItem{
  border:1px solid var(--line);
  border-radius:14px;
  padding:10px;
  background: rgba(0,0,0,.18);
}
.historyItem .hTop{
  display:flex; justify-content:space-between; gap:10px; flex-wrap:wrap;
  font-size:12px; color: var(--muted);
}
.historyItem .hMain{
  margin-top:8px;
  font-size:13px;
  color: var(--text);
  line-height:1.6;
}

.footer{ margin:14px 2px 0; color: var(--muted); text-align:center; }

/* ===== Ads ===== */
#adFooter{ padding: 24px 0; }
#adFooter .ad-wrap{
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  display: block;
}
#adFooter .adsbygoogle{
  display: block;
  width: 100%;
}

/* ===== Responsive tuning + 4 cards same size ===== */
@media (max-width: 980px){
  :root{ --card-w: 210px; }

  .deckArea{
    grid-template-columns: 1fr;
    justify-items: center;
  }

  #slots, .slots{
    grid-template-columns: 1fr;
    padding: 0 var(--side-pad);
    width: 100%;
  }

  #slots > .slot, .slots > .slot{
    max-width: var(--card-w);
    margin: 0 auto;
    width: 100%;
  }

  .deckStack{ width: var(--card-w); }
}

@media (max-width: 640px){
  :root{
    --card-w: 280px;
    --side-pad: 10px;
  }
  .app{ padding: 12px; }
  .table{ padding: 12px; }
  .slot{ padding: 10px; }
  .cardMeta{ font-size: 13px; }
}