.donate-widget {
  position: fixed;
  bottom: 1.25rem;
  right: 1.25rem;
  z-index: 100;
}

.donate-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.45rem 0.8rem;
  background: rgba(33, 33, 33, 0.75);
  color: #ccc;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 2rem;
  font-size: 0.75rem;
  font-family: inherit;
  cursor: pointer;
  opacity: 0.75;
  backdrop-filter: blur(6px);
  transition: opacity 0.2s ease, background 0.2s ease, color 0.2s ease;
  white-space: nowrap;
  overflow: hidden;
  max-width: 6.5rem;
}

.donate-btn:hover,
.donate-btn:focus-visible {
  opacity: 1;
  background: rgba(33, 33, 33, 0.92);
  color: #fff;
  max-width: 26rem;
  outline: none;
}

.donate-icon {
  font-size: 0.9rem;
  flex-shrink: 0;
  color: #7986cb;
}

.donate-btn:hover .donate-icon,
.donate-btn:focus-visible .donate-icon {
  color: #9fa8da;
}

.donate-label {
  flex-shrink: 0;
}

.donate-address {
  font-family: "Roboto Mono", ui-monospace, monospace;
  font-size: 0.68rem;
  color: #aaa;
  overflow: hidden;
  max-width: 0;
  opacity: 0;
  transition: max-width 0.25s ease, opacity 0.2s ease;
  pointer-events: none;
}

.donate-btn:hover .donate-address,
.donate-btn:focus-visible .donate-address {
  max-width: 22rem;
  opacity: 1;
}

.donate-copied {
  font-size: 0.7rem;
  color: #81c784;
  overflow: hidden;
  max-width: 0;
  opacity: 0;
  transition: max-width 0.15s ease, opacity 0.15s ease;
  pointer-events: none;
}

.donate-copied--visible {
  max-width: 5rem;
  opacity: 1;
}