:root {
  --rain-z: 999999;
}

.rain-overlay {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: var(--rain-z);
}

.rain-toggle {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  z-index: 9999;
  pointer-events: auto;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  border-radius: 999px;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.rain-toggle:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 26px var(--shadow);
}

.rain-toggle .icon {
  position: absolute;
  font-size: 16px;
  transition: opacity 0.15s ease, transform 0.15s ease;
}

.rain-toggle.is-on .icon-rain { opacity: 1; transform: scale(1); }
.rain-toggle.is-on .icon-umbrella { opacity: 0; transform: scale(0.85); }
.rain-toggle.is-off .icon-umbrella { opacity: 1; transform: scale(1); }
.rain-toggle.is-off .icon-rain { opacity: 0; transform: scale(0.85); }

.rain-toggle[disabled] {
  opacity: 0.55;
  cursor: not-allowed;
}