/* KNOB LAUNCH 6 · one reachable return control on every Professional
   secondary page. It sits below the fixed navigation, away from both the
   mobile menu and the bottom-right PRO/ART knob. */
.professional-work-back {
  position: fixed;
  top: 72px;
  left: 50%;
  z-index: 48;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 0.52rem 1rem 0.48rem;
  border: 1px solid rgba(201, 164, 93, 0.34);
  border-radius: 999px;
  background: rgba(10, 10, 9, 0.88);
  color: rgba(242, 239, 233, 0.78);
  font: 500 0.7rem/1 "JetBrains Mono", ui-monospace, monospace;
  letter-spacing: 0.12em;
  text-decoration: none;
  text-transform: uppercase;
  white-space: nowrap;
  transform: translateX(-50%);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.28);
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.professional-work-back:hover,
.professional-work-back:focus-visible {
  border-color: rgba(201, 164, 93, 0.72);
  background: rgba(24, 21, 14, 0.96);
  color: #f4de9c;
  outline: none;
}

@media (max-width: 640px) {
  .professional-work-back {
    top: calc(78px + env(safe-area-inset-top, 0px));
    min-height: 32px;
    padding-inline: 0.85rem;
    font-size: 0.64rem;
    letter-spacing: 0.1em;
  }
}

@media (prefers-reduced-motion: reduce) {
  .professional-work-back { transition: none; }
}