styles.css

:root{
  --bg: #f6f7fb;
  --card: #ffffff;
  --accent: #2f7cab;
  --accent-2: #f05a28;
  --muted: #6b7280;
  --glass: rgba(255,255,255,0.85);
  --shadow: 0 6px 18px rgba(32,33,36,0.08);
  font-family: Inter, "Noto Sans JP", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  --pane-gap: 14px;
}

*{box-sizing:border-box}
html,body{height:100%;margin:0;background:linear-gradient(180deg,#f6f7fb 0%, #eef3f9 100%);-webkit-font-smoothing:antialiased}
.container{
  max-width:1100px;
  margin:18px auto;
  padding:12px;
  display:flex;
  flex-direction:column;
  gap:var(--pane-gap);
}

/* common card/pane */
.card{background:var(--card);border-radius:12px;padding:12px;box-shadow:var(--shadow)}
.pane{display:flex;flex-direction:column;gap:10px}

/* Pane header */
.pane-header{display:flex;justify-content:space-between;align-items:center}
.pane-header h2{margin:0;color:var(--accent);font-size:16px}
.controls-inline{display:flex;gap:12px;align-items:center}
.date-display{font-size:13px;color:var(--muted)}

/* Input pane */
.input-row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.input-row label{font-size:13px;color:var(--muted)}
.input-row input[type="date"], .input-row input[type="number"], .input-row select{
  margin-left:6px;padding:6px 8px;border-radius:8px;border:1px solid #e6eef8;width:160px;background:#fbfdff
}
.btn{padding:8px 10px;border-radius:8px;border:0;background:var(--accent);color:#fff;cursor:pointer}
.btn.secondary{background:#8aaed0}
.btn.toggle{background:#eef6fb;color:var(--accent);border:1px solid rgba(47,124,171,0.12)}
.btn.toggle.active{background:var(--accent);color:#fff}

.history-section h3{margin:6px 0 0;font-size:14px}
.history-list{max-height:140px;overflow:auto;padding-top:8px;display:flex;flex-direction:column;gap:6px}
.history-item{display:flex;justify-content:space-between;align-items:center;padding:8px;border-radius:8px;background:var(--glass)}
.history-item .meta{color:var(--muted);font-size:13px}

/* Board pane */
.board-area{height:260px;border-radius:10px;overflow:auto;padding:6px;background:linear-gradient(90deg, rgba(47,124,171,0.03), rgba(240,90,40,0.02))}
svg{width:100%;height:100%}
.board-meta .small{color:var(--muted);font-size:13px}

/* Map pane */
.map{height:420px;border-radius:10px;border:1px solid rgba(15,23,42,0.04)}
.map-legend{font-size:13px;color:var(--muted)}
.dot{display:inline-block;width:12px;height:12px;border-radius:50%;margin-left:8px;margin-right:4px}
.dot.node{background:var(--accent)}
.dot.player{background:var(--accent-2);box-shadow:0 6px 14px rgba(240,90,40,0.18)}

/* responsive */
@media (max-width:900px){
  .input-row input[type="date"], .input-row input[type="number"], .input-row select{width:140px}
  .board-area{height:220px}
  .map{height:320px}
}