/* Shared frontend controls */
.omni-fullscreen-btn {
  background: rgba(25, 118, 210, 0.08);
  border: 2px solid rgba(25, 118, 210, 0.6);
  border-radius: 999px;
  padding: 6px 16px;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, transform 0.2s, box-shadow 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  color: #0d47a1;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 13px;
  box-shadow: 0 2px 6px rgba(25,118,210,0.12);
  background-clip: padding-box;
  line-height: 1;
  white-space: nowrap;
}

.omni-fullscreen-btn:hover {
  background: rgba(25, 118, 210, 0.18);
  border-color: #1976d2;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(25,118,210,0.2);
}

.omni-fullscreen-btn:focus-visible {
  outline: 3px solid rgba(21, 101, 192, 0.35);
  outline-offset: 2px;
}

.omni-fullscreen-btn .omni-fullscreen-icon {
  font-size: 16px;
  line-height: 1;
}

.omni-fullscreen-btn .omni-fullscreen-label {
  line-height: 1;
}