:root{
  --bg:#0f172a;
  --panel:#1e293b;
  --border:#334155;
  --text:#e5e7eb;
  --accent:#38bdf8;

  /* 補充用 */
  --supplement-bg:#422006;
  --supplement-border:#f59e0b;
  --supplement-text:#fde68a;
}

*{box-sizing:border-box}

body{
  margin:0;
  padding:20px;
  font-family:"Segoe UI",sans-serif;
  background:radial-gradient(circle at top,#1e293b,#020617);
  color:var(--text)
}

h1{text-align:center;margin-bottom:10px}
.sub{text-align:center;margin:20px 0 6px}

/* ===== フィルター ===== */
.filter-box{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:14px;
  padding:12px;
  margin-bottom:16px
}
.filters{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  justify-content:center
}
.filters label{
  background:#020617;
  border:1px solid var(--border);
  padding:6px 10px;
  border-radius:999px;
  cursor:pointer
}

/* ===== ボタン ===== */
.center{text-align:center;margin-bottom:14px}
button{
  background:linear-gradient(135deg,#38bdf8,#0ea5e9);
  border:none;
  color:#000;
  padding:16px 30px;
  border-radius:999px;
  font-weight:bold;
  font-size:18px;
  cursor:pointer;
  margin:6px
}
button.survival{
  background:linear-gradient(135deg,#22c55e,#16a34a);
}

.re-lottery-btn{
  background:linear-gradient(135deg,#38bdf8,#0ea5e9);
  font-size:13px;
  padding:8px 18px
}

.re-lottery-btn-survival{
  background:linear-gradient(135deg,#22c55e,#16a34a);
  font-size:13px;
  padding:8px 18px
}
.reset-btn{
  background:#475569;
  color:#e5e7eb;
  font-size:13px;
  padding:8px 18px
}

/* ===== カウンタ ===== */
.counter{
  text-align:center;
  margin-bottom:12px;
  font-size:14px;
  opacity:.9
}

/* ===== 補充表示 ===== */
.supplement-info{
  text-align:center;
  margin:10px auto 16px;
  font-size:14px;
  font-weight:bold;
  color:var(--supplement-text);
  background:rgba(245,158,11,.15);
  border:1px solid var(--supplement-border);
  border-radius:999px;
  padding:6px 16px;
  display:inline-block
}

/* ===== ロック ===== */
.lock{cursor:pointer;margin-left:6px}
.box.locked{opacity:.45;filter:grayscale(60%)}

/* ===== 抽選アニメ ===== */
.shuffling{animation:flash .2s linear infinite alternate}
@keyframes flash{from{opacity:.4}to{opacity:1}}

/* ===== キャラ一覧 ===== */
.character-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,80px);
  gap:12px;
  justify-content:center
}
.char{position:relative;text-align:center;cursor:pointer}
.char img{
  width:64px;height:64px;border-radius:12px;object-fit:cover;
  box-shadow:0 0 12px #000a
}
.char.off img{filter:grayscale(100%) brightness(45%)}
.char.used::after{
  content:"✔";
  position:absolute;top:-6px;right:-6px;
  background:#22c55e;color:#000;
  width:22px;height:22px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:bold
}
.char span{font-size:10px;display:block;margin-top:4px}

/* ===== 抽選エリア ===== */
.drag-area{display:flex;gap:20px;flex-wrap:wrap}
.box{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:14px;
  padding:12px;
  flex:1;min-width:260px
}
.box h2{text-align:center;margin:6px 0 10px}
.list{
  min-height:140px;
  border:2px dashed var(--border);
  border-radius:10px;
  padding:8px;
  display:grid;
  grid-template-columns:repeat(auto-fill,120px);
  gap:6px
}

/* ===== カード ===== */
.card{
  display:flex;
  align-items:center;
  background:#020617;
  padding:6px;
  border-radius:10px;
  cursor:grab;
  border:1px solid transparent
}
.card img{
  width:40px;
  height:40px;
  border-radius:8px;
  margin-right:6px
}
.card span{
  font-size:10px;
  white-space:nowrap
}

/* ===== 補充枠カード ===== */
.card.supplement{
  background:var(--supplement-bg);
  border-color:var(--supplement-border);
  box-shadow:0 0 10px rgba(245,158,11,.6)
}
.card.supplement span{
  color:var(--supplement-text);
  font-weight:bold
}

/* ===== 履歴 ===== */
.history{margin-top:30px}
#history{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:10px
}
.history-item{
  background:#020617;
  border-radius:12px;
  padding:8px;
  cursor:pointer
}
.history-time{
  font-size:11px;
  opacity:.7;
  margin-bottom:6px;
  text-align:center
}
.history-icons{
  display:flex;
  gap:4px;
  flex-wrap:wrap;
  justify-content:center
}
.history-icons img{
  width:26px;
  height:26px;
  border-radius:6px
}