.shell-fullscreen-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  min-width: 44px;
}

.shell-fullscreen-icon {
  font-size: 20px;
  line-height: 1;
  transform: translateY(-1px);
}

.shell-fullscreen-message {
  position: fixed;
  z-index: 1200;
  right: 18px;
  bottom: 18px;
  max-width: min(360px, calc(100vw - 36px));
  padding: 12px 15px;
  border: 1px solid rgba(43, 172, 152, 0.8);
  border-radius: 8px;
  background: rgba(11, 29, 56, 0.96);
  color: #fff;
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.35);
  font: 600 14px/1.4 "Josefin Sans", Arial, sans-serif;
}

@media (max-width: 1180px) {
  .shell-fullscreen-label {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    clip-path: inset(50%);
    white-space: nowrap;
  }
}