/* Shared visual layers leave the real controls and their hit areas in place. */
.page-viewport { position: relative; width: 100%; max-width: 430px; isolation: isolate; margin: 0 auto; min-width: 0; background: var(--kdl-canvas); border-radius: 24px; }
.preview-frame { position: relative; }
.incoming-page { position: absolute; inset: 0; background: var(--kdl-canvas); border-radius: inherit; }
.flight-layer { position: absolute; inset: 0 0 auto; overflow: hidden; pointer-events: none; z-index: 12; }
.flight-letter { position: absolute; overflow: hidden; will-change: transform; backface-visibility: hidden; }
.flight-letter img { position: absolute; top: 0; max-width: none; }
.activation-layer { position: absolute; inset: 0; pointer-events: none; z-index: 6; overflow: clip; border-radius: inherit; }
.activation-disc { pointer-events: none; }
[data-go-activation='running'] .kdl-start__button { opacity: 0; }
.press-copy { position: absolute; pointer-events: none; z-index: 100; margin: 0; transform-origin: center; }
.press-hidden { opacity: 0 !important; }
.transition-skip { position: absolute; right: 16px; top: 12px; z-index: 15; min-height: 48px; padding: 8px 12px; border: 0; border-radius: 24px; background: white; color: var(--kdl-text-secondary); font-size: .875rem; }
.demo-nav { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; margin: 8px 0 16px; }
.demo-group-label { font-weight: 600; color: var(--kdl-text); margin: 12px 0 6px; }
.demo-panel__state { line-height: 1.6; }
.demo-record-help { margin-top: 8px; }
.kdl-start__button:disabled { background: #7f3734; color: #f0d7d4; }
.kdl-field__input { transition: background-color 140ms, border-color 140ms, box-shadow 140ms; }
@media (max-width: 719px) { .page-viewport { border-radius: 0; } }