.studio-back {
  position: fixed;
  z-index: 2147483000;
  left: 16px;
  bottom: 16px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border-radius: 999px;
  background: rgba(20, 20, 20, 0.82);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  color: #f5f2ea;
  font: 500 12.5px/1 "Hanken Grotesk", system-ui, sans-serif;
  letter-spacing: 0.01em;
  text-decoration: none;
  box-shadow: 0 10px 24px -12px rgba(0, 0, 0, 0.6);
  transition: transform 0.2s, background 0.2s;
}
.studio-back:hover { transform: translateY(-2px); background: rgba(20, 20, 20, 0.95); }
.studio-back:focus-visible { outline: 2px solid #fff; outline-offset: 3px; }