.vrnd-tool{
  --vrnd-accent:#177D7A;
  --vrnd-accent-dark:#105E5C;
  --vrnd-bg:#F8F6F6;
  --vrnd-card:#fff;
  --vrnd-text:#182321;
  --vrnd-muted:#5F6B69;
  --vrnd-border:#D8E2E0;
  --vrnd-success:#1F7A4D;
  --vrnd-warning:#9A6700;
  --vrnd-danger:#A33A3A;
  max-width:1000px;
  margin:0 auto;
  color:var(--vrnd-text);
  font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  line-height:1.55;
}
.vrnd-tool *{box-sizing:border-box}
.vrnd-card,.vrnd-related{
  background:var(--vrnd-card);
  border:1px solid var(--vrnd-border);
  border-radius:16px;
}
.vrnd-main-card{padding:24px}
.vrnd-header{text-align:center;max-width:720px;margin:0 auto 22px}
.vrnd-header h2{margin:0 0 8px;font-size:clamp(28px,4vw,40px);line-height:1.15}
.vrnd-header p{margin:0;color:var(--vrnd-muted);font-size:16px}
.vrnd-permission-note,.vrnd-help{
  background:var(--vrnd-bg);
  border:1px solid var(--vrnd-border);
  border-radius:12px;
  padding:14px 16px;
  font-size:15px;
}
.vrnd-actions,.vrnd-result-actions{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  justify-content:center;
  margin:20px 0;
}
.vrnd-btn{
  min-height:48px;
  border-radius:10px;
  padding:12px 18px;
  font-size:16px;
  font-weight:700;
  cursor:pointer;
  border:1px solid transparent;
  transition:background .15s ease,border-color .15s ease,transform .15s ease;
}
.vrnd-btn:focus-visible,.vrnd-related a:focus-visible{
  outline:3px solid rgba(23,125,122,.3);
  outline-offset:3px;
}
.vrnd-btn-primary{background:var(--vrnd-accent);color:#fff}
.vrnd-btn-primary:hover{background:var(--vrnd-accent-dark)}
.vrnd-btn-secondary{background:#fff;color:var(--vrnd-text);border-color:var(--vrnd-border)}
.vrnd-btn-secondary:hover:not(:disabled){border-color:var(--vrnd-accent);color:var(--vrnd-accent-dark)}
.vrnd-btn:disabled{opacity:.5;cursor:not-allowed}
.vrnd-status-wrap{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  color:var(--vrnd-muted);
  font-weight:600;
  min-height:28px;
}
.vrnd-status-dot{
  width:10px;height:10px;border-radius:999px;background:#AEB9B7;
}
.vrnd-tool.is-listening .vrnd-status-dot{background:var(--vrnd-success)}
.vrnd-level{
  width:100%;
  max-width:520px;
  height:8px;
  margin:10px auto 20px;
  overflow:hidden;
  background:#E7ECEB;
  border-radius:999px;
}
.vrnd-level-bar{height:100%;width:0;background:var(--vrnd-accent);transition:width .08s linear}
.vrnd-result-card{
  border:1px solid var(--vrnd-border);
  background:linear-gradient(180deg,#fff 0%,#FBFCFC 100%);
  border-radius:14px;
  padding:24px;
  text-align:center;
}
.vrnd-note{font-size:clamp(64px,12vw,108px);font-weight:800;line-height:1;letter-spacing:-.04em}
.vrnd-subnote{margin-top:8px;color:var(--vrnd-muted);font-size:16px}
.vrnd-meter{max-width:620px;margin:26px auto 8px}
.vrnd-meter-scale{display:flex;justify-content:space-between;color:var(--vrnd-muted);font-size:13px;margin-bottom:5px}
.vrnd-meter-track{
  position:relative;height:16px;border-radius:999px;
  background:linear-gradient(90deg,#F2D9D9 0%,#F5E7C8 32%,#D8EEE3 45%,#D8EEE3 55%,#F5E7C8 68%,#F2D9D9 100%);
}
.vrnd-meter-center{position:absolute;left:50%;top:-5px;bottom:-5px;width:2px;background:var(--vrnd-text);transform:translateX(-1px)}
.vrnd-meter-needle{
  position:absolute;top:-6px;width:4px;height:28px;border-radius:4px;background:var(--vrnd-accent-dark);
  left:50%;transform:translateX(-2px);transition:left .08s linear;
}
.vrnd-tune-status{margin-top:10px;font-weight:800}
.vrnd-stats{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:12px;
  margin-top:22px;
}
.vrnd-stat{
  border:1px solid var(--vrnd-border);
  border-radius:12px;
  padding:14px;
  background:#fff;
}
.vrnd-stat-label{display:block;color:var(--vrnd-muted);font-size:13px;margin-bottom:4px}
.vrnd-stat strong{font-size:18px}
.vrnd-help{margin-top:20px}
.vrnd-error{
  margin-top:16px;
  padding:14px 16px;
  color:#7E2424;
  background:#FFF3F3;
  border:1px solid #E7BEBE;
  border-radius:12px;
}
.vrnd-related{margin-top:24px;padding:24px}
.vrnd-related h3{margin:0 0 18px;font-size:22px}
.vrnd-related-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  column-gap:32px;
  row-gap:14px;
}
.vrnd-related a{
  color:var(--vrnd-text);
  text-decoration:none;
  font-weight:700;
  border-radius:6px;
}
.vrnd-related a:hover{color:var(--vrnd-accent-dark);text-decoration:underline}
@media (max-width:720px){
  .vrnd-main-card,.vrnd-related{padding:18px}
  .vrnd-stats{grid-template-columns:1fr}
  .vrnd-related-grid{grid-template-columns:1fr 1fr}
  .vrnd-actions .vrnd-btn{flex:1 1 180px}
}
@media (max-width:460px){
  .vrnd-related-grid{grid-template-columns:1fr}
  .vrnd-result-card{padding:18px}
}