/* Dark-first design with prefers-color-scheme */
.mcp-ladder-game{
  --mcp-lg-bg:#0b1020;
  --mcp-lg-panel:#0f172a;
  --mcp-lg-border:rgba(148,163,184,.2);
  --mcp-lg-text:#e5e7eb;
  --mcp-lg-muted:#94a3b8;
  --mcp-lg-line-color:rgba(148,163,184,.55);
  --mcp-lg-token-color:#60a5fa;

  color:var(--mcp-lg-text);
  background:linear-gradient(180deg,#0b1020 0%, #0b1020 40%, #0d1326 100%);
  border:1px solid var(--mcp-lg-border);
  border-radius:14px;
  padding:16px 18px;
  max-width:960px;
  margin:16px auto;
  box-shadow:0 12px 40px rgba(0,0,0,.45);
}

@media (prefers-color-scheme: light){
  .mcp-ladder-game{
    --mcp-lg-bg:#ffffff;
    --mcp-lg-panel:#ffffff;
    --mcp-lg-border:#e5e7eb;
    --mcp-lg-text:#111827;
    --mcp-lg-muted:#6b7280;
    --mcp-lg-line-color:#9ca3af;
    --mcp-lg-token-color:#3b82f6;

    background:#fff;
    box-shadow:0 8px 20px rgba(0,0,0,.08);
  }
}

.mcp-lg-header h2{margin:0 0 6px;font-size:1.35rem;}
.mcp-lg-subtitle{margin:0;color:var(--mcp-lg-muted);font-size:.92rem}

.mcp-lg-error{color:#fb7185;min-height:1.1em;margin:.6rem 0 .8rem}

.mcp-lg-control-panel{display:flex;gap:12px;flex-wrap:wrap;margin:12px 0}
.mcp-lg-column{flex:1 1 260px;min-width:0}
.mcp-lg-column label{display:block;margin-bottom:6px;font-weight:600}
.mcp-lg-hint{font-weight:400;color:var(--mcp-lg-muted)}

.mcp-lg-column textarea{
  width:100%;min-height:120px;resize:vertical;
  padding:.6rem .7rem;border-radius:10px;border:1px solid var(--mcp-lg-border);
  background:var(--mcp-lg-panel);color:inherit;font-size:.95rem;line-height:1.45
}

.mcp-lg-options{display:flex;gap:12px;align-items:center;margin:.4rem 0 1rem;font-size:.95rem}
.mcp-lg-option{display:flex;gap:10px;align-items:center}
.mcp-lg-levels{width:200px}
.mcp-lg-levels-value{color:var(--mcp-lg-muted);font-size:.9rem}

.mcp-lg-buttons{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:12px}
.mcp-lg-buttons button{
  padding:.5rem 1rem;border:none;border-radius:999px;font-weight:700;cursor:pointer;
  transition:transform .06s ease, box-shadow .1s ease, background .15s ease;
}
.mcp-lg-generate{background:#2563eb;color:#fff;box-shadow:0 8px 18px rgba(37,99,235,.5)}
.mcp-lg-generate:hover{transform:translateY(-1px);background:#1d4ed8}
.mcp-lg-shuffle,.mcp-lg-replay{background:rgba(148,163,184,.25);color:var(--mcp-lg-text)}
.mcp-lg-shuffle:disabled,.mcp-lg-replay:disabled{opacity:.55;cursor:not-allowed}

.mcp-lg-canvas-wrapper{
  padding:.6rem;border:1px dashed var(--mcp-lg-border);
  border-radius:12px;background:linear-gradient(180deg,rgba(2,6,23,.35),transparent);
}
.mcp-lg-canvas{display:block;width:100%;height:auto}

.mcp-lg-result-wrapper{margin-top:10px}
.mcp-lg-result-wrapper h3{margin:0 0 6px}
.mcp-lg-result-empty{color:var(--mcp-lg-muted)}

.mcp-lg-table{width:100%;border-collapse:collapse;font-size:.95rem}
.mcp-lg-table th,.mcp-lg-table td{padding:.45rem .6rem;text-align:left;border-bottom:1px solid var(--mcp-lg-border)}
.mcp-lg-table tbody tr:nth-child(odd){background:rgba(148,163,184,.06)}

@media (max-width:640px){
  .mcp-ladder-game{padding:12px 12px}
  .mcp-lg-header h2{font-size:1.2rem}
}