#volumetric-widget.vw-container {
  position: fixed;
  inset: auto auto 20px 20px;          /* ✅ پایین-چپ */
  z-index: 2147483647;                 /* بالاترین حد ممکن */
  display: block;
  user-select: none;
  pointer-events: auto;
  font-family: inherit;
}


#volumetric-widget .vw-tip {
  position: absolute;
  left: 0;                             /* ✅ در سمت چپ دکمه قرار بگیرد */
  bottom: 58px;
  transform: translateY(0);
  background: rgba(08, 142, 139, .85);
  backdrop-filter: saturate(180%) blur(8px);
  color: #ffffff;
  border-radius: 14px;
  padding: 6px 10px;
  font-size: 14px;
  box-shadow: 0 10px 25px rgba(2,6,23,.12);
  white-space: nowrap;
  pointer-events: none;
}


#volumetric-widget .vw-glass-btn {
  width: 52px; height: 52px;
  border-radius: 50%;
  border: 0;
  background: linear-gradient(135deg, rgba(255,255,255,.35), rgba(255,255,255,.15));
  backdrop-filter: saturate(180%) blur(10px);
  box-shadow: 0 8px 30px rgba(2,6,23,.25), inset 0 0 0 1px rgba(255,255,255,.4);
  color: #0f172a;
  font-size: 28px; line-height: 1;
  display: grid; place-items: center;
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease;
}
#volumetric-widget .vw-glass-btn:hover {
  transform: translateY(-2px) scale(1.02);
}
#volumetric-widget .vw-glass-btn:active {
  transform: translateY(0) scale(.98);
}


#volumetric-widget .vw-panel {
  position: fixed;
  inset: auto auto 88px 20px;         /* ✅ بالای دکمه سمت چپ */
  width: min(92vw, 420px);
  background: linear-gradient(180deg, rgba(255,255,255,.92), rgba(255,255,255,.88));
  backdrop-filter: saturate(180%) blur(12px);
  border-radius: 20px;
  box-shadow: 0 25px 60px rgba(2,6,23,.35), inset 0 0 0 1px rgba(255,255,255,.55);
  overflow: hidden;
  animation: vw-pop .2s ease;
}
@keyframes vw-pop {
  from { opacity: 0; transform: translateY(8px) scale(.98); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

#volumetric-widget .vw-panel-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 14px;
  border-bottom: 1px solid rgba(15,23,42,.08);
  color: #0f172a;
}
#volumetric-widget .vw-close {
  inline-size: 36px; block-size: 36px;
  border-radius: 10px; border: 0;
  background: rgba(15,23,42,.06);
  font-size: 20px; cursor: pointer;
}
#volumetric-widget .vw-close:hover {
  background: rgba(15,23,42,.12);
}

#volumetric-widget .vw-panel-body {
  padding: 14px;
  color: #0f172a;
}
#volumetric-widget .vw-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
@media (max-width: 480px) {
  #volumetric-widget .vw-form {
    grid-template-columns: 1fr;
  }
}

#volumetric-widget .vw-field {
  display: grid; gap: 6px;
  font-size: 13px;
}
#volumetric-widget .vw-field input {
  height: 42px;
  border-radius: 12px;
  border: 1px solid rgba(15,23,42,.12);
  background: rgba(255,255,255,.9);
  padding: 0 12px;
  text-align: center;
  direction: ltr;
  font-size: 14px;
  outline: none;
}
#volumetric-widget .vw-field input:focus {
  border-color: #0ea5e9;
  box-shadow: 0 0 0 3px rgba(14,165,233,.25);
}

#volumetric-widget .vw-formula {
  margin: 10px 0 4px;
  font-size: 12px;
  color: #334155;
}
#volumetric-widget .vw-result {
  margin-top: 4px;
  font-size: 15px;
  font-weight: 700;
  color: #0f766e;
}