/* En-TuinDesign — premium page transition overlay */
:root {
  --entuin-pt-bg: #0a0a0a;
  --entuin-pt-accent: hsl(195 55% 42%);
  --entuin-pt-duration: 520ms;
  --entuin-pt-ease: cubic-bezier(0.65, 0.05, 0.36, 1);
  --entuin-pt-logo-y: 0;
  --entuin-pt-logo-drift-x: 10px;
  --entuin-pt-logo-drift-y: 6px;
}

html.entuin-pt-lock,
html.entuin-pt-lock body {
  background: var(--entuin-pt-bg) !important;
  overflow: hidden !important;
}

#entuin-page-transition {
  position: fixed;
  inset: 0;
  z-index: 1000000;
  pointer-events: none;
  visibility: hidden;
  opacity: 0;
}

#entuin-page-transition.is-active {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
}

#entuin-page-transition .entuin-pt-panel {
  position: absolute;
  inset: 0;
  background: var(--entuin-pt-bg);
  transform: translate3d(-101%, 0, 0);
  will-change: transform;
}

#entuin-page-transition.is-covered .entuin-pt-panel,
#entuin-page-transition.is-restored .entuin-pt-panel {
  transform: translate3d(0, 0, 0);
}

#entuin-page-transition.is-leaving .entuin-pt-panel {
  transform: translate3d(101%, 0, 0);
  transition: transform var(--entuin-pt-duration) var(--entuin-pt-ease);
}

#entuin-page-transition.is-entering .entuin-pt-panel {
  transform: translate3d(0, 0, 0);
  transition: transform var(--entuin-pt-duration) var(--entuin-pt-ease);
}

#entuin-page-transition .entuin-pt-stage {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  opacity: 0;
}

#entuin-page-transition.is-active .entuin-pt-stage {
  opacity: 1;
  transition: opacity 0.2s ease 0.06s;
}

#entuin-page-transition .entuin-pt-logo-wrap {
  position: relative;
  z-index: 1;
  will-change: transform, opacity;
}

#entuin-page-transition .entuin-pt-logo {
  display: block;
  width: clamp(24px, 3.5vw, 32px);
  height: auto;
  filter: brightness(1.15);
  opacity: 0.92;
}

#entuin-page-transition.is-entering .entuin-pt-logo-wrap {
  animation: entuinPtLogoIn var(--entuin-pt-duration) var(--entuin-pt-ease) forwards;
}

#entuin-page-transition.is-restored .entuin-pt-logo-wrap,
#entuin-page-transition.is-covered .entuin-pt-logo-wrap {
  transform: translate3d(0, 0, 0);
  opacity: 1;
}

#entuin-page-transition.is-covered .entuin-pt-logo-wrap,
#entuin-page-transition.is-restored .entuin-pt-logo-wrap {
  animation: entuinPtLogoDrift 1.1s ease-in-out infinite alternate;
}

#entuin-page-transition.is-leaving .entuin-pt-logo-wrap {
  animation: entuinPtLogoOut calc(var(--entuin-pt-duration) * 0.9) var(--entuin-pt-ease) forwards;
}

@keyframes entuinPtLogoIn {
  from {
    transform: translate3d(-38vw, 0, 0);
    opacity: 0.25;
  }
  to {
    transform: translate3d(0, 0, 0);
    opacity: 1;
  }
}

@keyframes entuinPtLogoOut {
  from {
    transform: translate3d(0, 0, 0);
    opacity: 1;
  }
  to {
    transform: translate3d(38vw, 0, 0);
    opacity: 0.25;
  }
}

@keyframes entuinPtLogoDrift {
  from {
    transform: translate3d(calc(-1 * var(--entuin-pt-logo-drift-x)), calc(-1 * var(--entuin-pt-logo-drift-y)), 0);
  }
  to {
    transform: translate3d(var(--entuin-pt-logo-drift-x), var(--entuin-pt-logo-drift-y), 0);
  }
}

/* Tablet / mobile — crossfade, logo centered */
@media (max-width: 860px) {
  :root {
    --entuin-pt-duration: 380ms;
    --entuin-pt-ease: cubic-bezier(0.4, 0, 0.2, 1);
  }

  #entuin-page-transition .entuin-pt-panel {
    transform: none !important;
    opacity: 0;
    transition: opacity var(--entuin-pt-duration) var(--entuin-pt-ease);
  }

  #entuin-page-transition.is-entering .entuin-pt-panel,
  #entuin-page-transition.is-covered .entuin-pt-panel,
  #entuin-page-transition.is-restored .entuin-pt-panel {
    opacity: 1;
  }

  #entuin-page-transition.is-leaving .entuin-pt-panel {
    opacity: 0;
  }

  #entuin-page-transition .entuin-pt-logo-wrap {
    animation: none !important;
    transform: translate3d(0, 0, 0) !important;
    opacity: 0;
    transition: opacity calc(var(--entuin-pt-duration) * 0.85) var(--entuin-pt-ease)
      calc(var(--entuin-pt-duration) * 0.08);
  }

  #entuin-page-transition.is-entering .entuin-pt-logo-wrap,
  #entuin-page-transition.is-covered .entuin-pt-logo-wrap,
  #entuin-page-transition.is-restored .entuin-pt-logo-wrap {
    opacity: 0.92;
  }

  #entuin-page-transition.is-leaving .entuin-pt-logo-wrap {
    opacity: 0;
    transition-delay: 0ms;
  }

  #entuin-page-transition.is-entering .entuin-pt-logo-wrap,
  #entuin-page-transition.is-leaving .entuin-pt-logo-wrap {
    animation: none !important;
  }
}

@media (prefers-reduced-motion: reduce) {
  :root {
    --entuin-pt-duration: 1ms;
  }

  #entuin-page-transition .entuin-pt-panel,
  #entuin-page-transition .entuin-pt-stage,
  #entuin-page-transition.is-entering .entuin-pt-logo-wrap,
  #entuin-page-transition.is-covered .entuin-pt-logo-wrap,
  #entuin-page-transition.is-restored .entuin-pt-logo-wrap,
  #entuin-page-transition.is-leaving .entuin-pt-logo-wrap {
    animation: none !important;
    transition: none !important;
  }

  #entuin-page-transition.is-entering .entuin-pt-panel,
  #entuin-page-transition.is-restored .entuin-pt-panel,
  #entuin-page-transition.is-covered .entuin-pt-panel {
    transform: translate3d(0, 0, 0);
    opacity: 1;
  }

  #entuin-page-transition.is-leaving .entuin-pt-panel {
    transform: translate3d(101%, 0, 0);
    opacity: 0;
  }

  @media (max-width: 860px) {
    #entuin-page-transition.is-leaving .entuin-pt-panel {
      transform: none !important;
      opacity: 0;
    }
  }

  #entuin-page-transition.is-covered .entuin-pt-logo-wrap,
  #entuin-page-transition.is-restored .entuin-pt-logo-wrap {
    transform: translate3d(0, 0, 0);
    opacity: 1;
  }
}