#notation-checker-tool{
  --nct-bg:#fbfaf7;
  --nct-card:#fff;
  --nct-text:#2e3331;
  --nct-muted:#69716e;
  --nct-line:#dfe4e1;
  --nct-accent:#3f6f66;
  --nct-accent-soft:#edf4f1;
  --nct-warn:#8a5b25;
  --nct-warn-bg:#fff8ed;
  color:var(--nct-text);
  background:var(--nct-bg);
  border:1px solid var(--nct-line);
  border-radius:16px;
  padding:24px;
  box-sizing:border-box;
}
#notation-checker-tool *{box-sizing:border-box}
#notation-checker-tool.nct-dark{
  --nct-bg:#202624;
  --nct-card:#29302e;
  --nct-text:#f1f4f2;
  --nct-muted:#b8c1bd;
  --nct-line:#46504c;
  --nct-accent:#91bdb2;
  --nct-accent-soft:#33413d;
  --nct-warn:#e4bd82;
  --nct-warn-bg:#3c3429;
}
#notation-checker-tool .nct-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:4px}
#notation-checker-tool .nct-title{margin:0;padding:0;font-size:clamp(24px,3.2vw,30px);font-weight:600;line-height:1.4;color:var(--nct-text)}
#notation-checker-tool .nct-theme{flex:none;border:1px solid var(--nct-line);background:var(--nct-card);color:var(--nct-text);border-radius:999px;padding:8px 13px;font-size:13px;cursor:pointer}
#notation-checker-tool .nct-lead{margin:4px 0 16px;color:var(--nct-muted);font-size:14px}
#notation-checker-tool .nct-input{display:block;width:100%;min-height:260px;resize:vertical;border:1px solid var(--nct-line);border-radius:12px;background:var(--nct-card);color:var(--nct-text);padding:15px 16px;font:inherit;line-height:1.8;outline:none}
#notation-checker-tool .nct-input:focus{border-color:var(--nct-accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--nct-accent) 15%,transparent)}
#notation-checker-tool .nct-actions{display:flex;gap:10px;flex-wrap:wrap;margin:14px 0 20px}
#notation-checker-tool .nct-actions button{border-radius:10px;padding:11px 18px;font-weight:600;cursor:pointer;font-size:14px}
#notation-checker-tool .nct-check{border:1px solid var(--nct-accent);background:var(--nct-accent);color:#fff}
#notation-checker-tool.nct-dark .nct-check{color:#17201d}
#notation-checker-tool .nct-clear{border:1px solid var(--nct-line);background:var(--nct-card);color:var(--nct-text)}
#notation-checker-tool .nct-results{background:var(--nct-card);border:1px solid var(--nct-line);border-radius:14px;padding:18px}
#notation-checker-tool .nct-results-title{font-size:18px;font-weight:700;margin-bottom:12px}
#notation-checker-tool .nct-empty,#notation-checker-tool .nct-summary{margin:0;color:var(--nct-muted)}
#notation-checker-tool .nct-summary strong{color:var(--nct-text);font-size:18px}
#notation-checker-tool .nct-list{display:grid;gap:12px;margin-top:15px}
#notation-checker-tool .nct-item{border:1px solid var(--nct-line);border-radius:12px;padding:14px;background:var(--nct-bg)}
#notation-checker-tool .nct-variants{font-weight:700;line-height:1.7;margin-bottom:7px;word-break:break-word}
#notation-checker-tool .nct-counts{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:7px}
#notation-checker-tool .nct-count{display:inline-block;background:var(--nct-accent-soft);border-radius:999px;padding:4px 9px;font-size:13px}
#notation-checker-tool .nct-lines{font-size:13px;color:var(--nct-muted);line-height:1.7}
#notation-checker-tool .nct-note{margin-top:7px;padding:7px 9px;border-radius:8px;background:var(--nct-warn-bg);color:var(--nct-warn);font-size:12px;line-height:1.6}
#notation-checker-tool .nct-privacy{margin:10px 2px 0;color:var(--nct-muted);font-size:12px}
@media(max-width:600px){
  #notation-checker-tool{padding:18px 14px}
  #notation-checker-tool .nct-head{align-items:flex-start}
  #notation-checker-tool .nct-theme{padding:7px 10px}
  #notation-checker-tool .nct-input{min-height:220px}
  #notation-checker-tool .nct-actions{display:grid;grid-template-columns:1fr 1fr}
  #notation-checker-tool .nct-actions button{width:100%;padding:11px 8px}
}