/* Lab page transitions — enter/exit feature */

html.lab-transition-lock,
html.lab-transition-lock body {
  overflow: hidden;
}

.lab-transition-sink-target {
  min-height: 100vh;
  min-height: 100dvh;
  transform-origin: center center;
  will-change: transform, opacity;
}

.lab-transition-sink-target.lab-transition-sinking,
.lab-transition-sink-target.lab-transition-sunk {
  transform: translateY(6vh) scale(0.9);
  opacity: 0.35;
}

.lab-transition-sink-target.lab-transition-sinking {
  transition:
    transform 0.6s cubic-bezier(0.16, 1, 0.3, 1),
    opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.lab-transition-sink-target.lab-transition-rise {
  transform: translateY(0) scale(1);
  opacity: 1;
  transition:
    transform 0.72s cubic-bezier(0.16, 1, 0.3, 1),
    opacity 0.72s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Sunk lab visible under sliding feature page */
.lab-transition-backdrop {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: var(--bg-page, #f2f2f2);
  overflow: hidden;
}

html.lab-feature-boot,
html.lab-feature-active {
  background: var(--bg-page, #f2f2f2);
}

.lab-transition-backdrop-sink {
  position: absolute;
  inset: 0;
  transform-origin: center center;
  will-change: transform, opacity;
}

.lab-transition-backdrop.lab-transition-backdrop-sunk .lab-transition-backdrop-sink {
  transform: scale(0.94);
  opacity: 0.92;
}

.lab-transition-backdrop.lab-transition-backdrop-rise .lab-transition-backdrop-sink {
  transform: scale(1);
  opacity: 1;
  transition:
    transform 0.9s cubic-bezier(0.16, 1, 0.3, 1),
    opacity 0.85s cubic-bezier(0.16, 1, 0.3, 1);
}

.lab-transition-backdrop.lab-transition-backdrop-rise:not(.lab-transition-backdrop-sunk) .lab-transition-backdrop-sink {
  transition: none;
}

.lab-transition-backdrop-sink::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(
    ellipse 85% 75% at 50% 48%,
    transparent 35%,
    rgba(255, 255, 255, 0.25) 68%,
    rgba(255, 255, 255, 0.62) 100%
  );
}

.lab-transition-backdrop-hero {
  position: absolute;
  font-family: var(--font-sans, "Inter", sans-serif);
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-primary, #000);
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.lab-transition-backdrop-logo {
  position: absolute;
  pointer-events: none;
}

.lab-transition-backdrop-logo img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: left bottom;
}

.lab-transition-backdrop-site-card {
  position: absolute;
  pointer-events: none;
  background: #e3e3e3;
  border: 1px dashed rgba(0, 0, 0, 0.35);
}

.lab-transition-backdrop-contact-card {
  position: absolute;
  pointer-events: none;
  background: #ffffff;
  border: 1px dashed rgba(0, 0, 0, 0.35);
}

.lab-transition-backdrop-link {
  position: absolute;
  font-family: var(--font-sans, "Inter", sans-serif);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-label, #aaa);
}

.lab-transition-backdrop-card {
  position: absolute;
  pointer-events: none;
}

.lab-transition-backdrop-card__preview {
  width: 100%;
  height: 100%;
  border: 1px dashed var(--border-dashed, rgba(0, 0, 0, 0.35));
  border-radius: 0;
  background: #ffffff;
  overflow: hidden;
}

.lab-transition-backdrop-card__preview img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.lab-transition-backdrop-card__preview .lab-card__art {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.lab-transition-backdrop-card__preview .preview-art {
  display: block;
  width: 100%;
  height: 100%;
}

html.lab-landing-exit-boot {
  background: var(--bg-page, #f2f2f2);
}

html.lab-landing-exit-boot body {
  visibility: hidden;
}

body.lab-feature-enter-pending,
html.lab-feature-boot body {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  min-height: 100dvh;
  transform: translate3d(0, 100vh, 0);
  box-shadow: 0 -24px 72px rgba(0, 0, 0, 0.16);
  will-change: transform, opacity;
}

body.lab-feature-enter:not(.lab-feature-exit):not(.lab-feature-exit-from) {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  min-height: 100dvh;
  transform: translate3d(0, 0, 0);
  opacity: 1;
  box-shadow: 0 -24px 72px rgba(0, 0, 0, 0.16);
  transition:
    transform 0.72s cubic-bezier(0.16, 1, 0.3, 1),
    box-shadow 0.72s cubic-bezier(0.16, 1, 0.3, 1);
}

body.lab-feature-exit-from {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  min-height: 100dvh;
  transform: translate3d(0, 0, 0);
  box-shadow: 0 -24px 72px rgba(0, 0, 0, 0.16);
  transition: none;
}

body.lab-feature-exit {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  min-height: 100dvh;
  transform: translate3d(0, 100vh, 0);
  box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.04);
  will-change: transform;
  transition: transform 1.05s cubic-bezier(0.33, 1, 0.68, 1);
}

@media (prefers-reduced-motion: reduce) {
  .lab-transition-sink-target,
  .lab-transition-backdrop-sink,
  body.lab-feature-enter,
  body.lab-feature-exit,
  body.lab-feature-exit-from {
    transition: none !important;
  }
}