.update-banner {
  position: fixed;
  left: 50%;
  bottom: 20px;
  transform: translate(-50%, 120%);
  display: flex;
  align-items: center;
  gap: 16px;
  max-width: calc(100% - 32px);
  padding: 12px 16px;
  background: #1a1a1a;
  color: #fff;
  border-radius: 10px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
  font: 14px/1.4 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  z-index: 9999;
  transition: transform 0.3s ease;
}

.update-banner--visible {
  transform: translate(-50%, 0);
}

.update-banner__text {
  flex: 1;
}

.update-banner__actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.update-banner__button {
  background: #fff;
  color: #1a1a1a;
  border: none;
  border-radius: 6px;
  padding: 6px 12px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}

.update-banner__button:hover {
  opacity: 0.9;
}

.update-banner__dismiss {
  background: transparent;
  color: #bbb;
  border: none;
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
  padding: 4px;
}

.update-banner__dismiss:hover {
  color: #fff;
}