:root{--bg:#f7f8fb;--card:#fff;--text:#0f172a;--muted:#6b7280;--brand:#0ea5a0;--border:#e5e7eb}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.5 system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif}
.container{max-width:720px;margin:24px auto;padding:0 16px}.card{background:#fff;border:1px solid var(--border);border-radius:12px;padding:16px;box-shadow:0 8px 24px rgba(0,0,0,.04)}
h1{margin:0 0 12px;font-size:24px;color:var(--brand);text-align:center}label{display:block;margin-top:12px;font-weight:600}
select{width:100%;padding:10px;margin-top:6px;border:1px solid var(--border);border-radius:8px}
#result{margin-top:16px;padding:12px;background:#ecfdf5;border:1px solid #d1fae5;border-radius:10px;font-weight:600;text-align:center}
footer{color:var(--muted);font-size:12px;text-align:center;margin-top:10px}
.overlay{position:fixed;inset:0;background:rgba(0,0,0,.45);display:none;align-items:center;justify-content:center;padding:16px;z-index:1000}
.modal{max-width:960px;width:100%;background:#fff;border-radius:12px;box-shadow:0 12px 36px rgba(0,0,0,.25);padding:14px}
.toolbar{display:flex;gap:8px;justify-content:flex-end;margin-bottom:10px;flex-wrap:wrap}
.toolbar button{border:1px solid var(--border);background:#f3f4f6;padding:8px 12px;border-radius:8px;cursor:pointer}
.toolbar .primary{background:#0ea5a0;color:#fff;border:none}
.table-wrap{max-height:60vh;overflow:auto;border:1px solid var(--border);border-radius:10px}
table{width:100%;border-collapse:collapse}th,td{border-bottom:1px solid #eee;padding:8px;font-size:14px}td[contenteditable]{background:#fafafa}
.hint{color:var(--muted);font-size:12px;margin-top:8px}.del{background:#ef4444;color:#fff;border:none;border-radius:6px;padding:6px 10px;cursor:pointer}

/* Min/Max summary styling */
.minmax .summary{
  margin:10px 0 6px;
  padding:10px 12px;
  border:1px solid #e3e3e3;
  border-radius:12px;
  background:#fafafa;
  font-size:0.95rem;
  display:block;
}
.minmax .summary .pill{
  display:inline-block;
  padding:2px 8px;
  border-radius:999px;
  border:1px solid #ddd;
  background:#fff;
  font-weight:600;
  margin-right:8px;
}
.minmax .summary .arrow{ margin:0 6px; font-weight:700; }
.minmax .table{ margin-top:8px; background:#fff; }

/* Muted state for Min/Max panel */
.muted-panel{
  opacity: .6;
  pointer-events: none;
}

#updateBanner button:hover{filter:brightness(1.1)}