#gradient-display > [data-part="surface"] {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-radius: var(--guise-radius-md, 12px);
  background: #010101;
}

#gradient-display canvas[data-part="screen"] {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  background: #010101;
}

#gradient-instrument[data-animation-fullscreen="true"] {
  position: fixed;
  inset: 0;
  z-index: 1000;
  overflow: hidden;
  visibility: hidden;
}

#gradient-instrument[data-animation-fullscreen="true"] #gradient-display,
#gradient-instrument[data-animation-fullscreen="true"]::after {
  visibility: visible;
}

#gradient-instrument[data-animation-fullscreen="true"] #gradient-display > [data-part="surface"] {
  position: fixed;
  inset: 0;
  z-index: 1;
  aspect-ratio: auto;
  border-radius: 0;
}

#gradient-instrument[data-animation-fullscreen="true"],
#gradient-instrument[data-animation-fullscreen="true"] * {
  cursor: none;
}

@keyframes gi-exit-hint {
  0%   { opacity: 0;   transform: translateX(-50%) translateY(6px);  }
  20%  { opacity: 0.7; transform: translateX(-50%) translateY(0);     }
  75%  { opacity: 0.7; transform: translateX(-50%) translateY(0);     }
  100% { opacity: 0;   transform: translateX(-50%) translateY(-4px);  }
}

#gradient-instrument[data-animation-fullscreen="true"]::after {
  content: 'Tap anywhere to exit';
  position: fixed;
  bottom: calc(env(safe-area-inset-bottom, 0px) + clamp(1.2rem, 5vh, 3rem));
  left: 50%;
  z-index: 2;
  pointer-events: none;

  font-family: var(--font-body, ui-sans-serif, system-ui, sans-serif);
  font-size: clamp(0.70rem, 2.2vw, 0.85rem);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.68);
  text-shadow:
    0 1px 4px rgba(0, 0, 0, 0.55),
    0 0 12px rgba(0, 0, 0, 0.35);

  animation: gi-exit-hint 4s ease-in-out forwards;
}

:root:has(#gradient-instrument[data-animation-fullscreen="true"]) {
  overflow: hidden;
  overscroll-behavior: none;
}