/* ── Intro overlay wrapper ── */
.nea-intro-overlay {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: 9999;
}

.nea-intro-overlay.is-sliding {
  animation: neaIntroSlideDown 1.4s cubic-bezier(.76,0,.24,1) forwards;
}

.nea-intro-overlay *,
.nea-intro-overlay *::before,
.nea-intro-overlay *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* ── Scene ── */
.nea-intro-overlay .nea-atmosphere {
  position: relative;
  width: 100%;
  height: 100vh;
  overflow: hidden;
  background: #000;
  cursor: none;
  isolation: isolate;
}

.nea-intro-overlay .nea-atmosphere.is-quaking {
  animation: neaQuake 0.41s ease-in-out both;
}

/* ── Background image ── */
.nea-intro-overlay .nea-bg {
  position: absolute;
  inset: 0;
  background: url("https://neaentertainment.b-cdn.net/neaentertainment/images/Intro/Intro-BG1536x1024.webp") center / cover no-repeat;
  opacity: 0;
  z-index: 0;
  animation: neaBgDrift 10s ease-in-out infinite alternate;
  will-change: transform;
}

/* ── Smoke videos ── */
.nea-intro-overlay .nea-smoke-vid {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
  mix-blend-mode: screen;
  filter: brightness(0.9) contrast(2);
  z-index: 1;
  will-change: opacity;
}

.nea-intro-overlay .nea-smoke-vid-a {
  opacity: 0.2;
  transform: scale(1.4);
}

.nea-intro-overlay .nea-smoke-vid-b {
  opacity: 0.15;
  transform: scaleX(-2) scaleY(-1);
}

.nea-intro-overlay .nea-smoke-vid-b-front {
  z-index: 6;
  opacity: 0;
  transform: scaleX(-2);
}

.nea-intro-overlay .nea-atmosphere.is-started .nea-smoke-vid-b-front {
  animation: frontSmokeFade .8s ease-out .2s forwards;
}

/* ── Light sweep ── */
.nea-intro-overlay .nea-sweep {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    110deg,
    transparent 35%,
    rgba(255,255,255,.22) 50%,
    transparent 65%
  );
  mix-blend-mode: screen;
  animation: neaSweep 15s ease-in-out infinite;
  pointer-events: none;
  z-index: 8;
}

/* ── Stage / world ── */
.nea-intro-overlay .nea-stage {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  perspective: 1200px;
  z-index: 3;
  opacity: 0;
}

.nea-intro-overlay .nea-stage.is-visible {
  animation: neaStageFadeIn 1s ease-in forwards;
}

.nea-intro-overlay .nea-world {
  position: relative;
  width: 60vw;
  max-width: 2000px;
  aspect-ratio: 2.15 / 1;
  transform-style: preserve-3d;
  will-change: transform;
  transform: translateX(5%) rotateX(0deg) rotateY(0deg);
}

/* ── Gorilla layer groups ── */
.nea-intro-overlay .nea-gorilla-under-ring,
.nea-intro-overlay .nea-gorilla-under-text,
.nea-intro-overlay .nea-gorilla-top {
  position: absolute;
  left: -7%;
  top: 5%;
  width: 100%;
  height: 100%;
  pointer-events: none;
  will-change: transform;
  transform: translate(0px, 0px);
}

.nea-intro-overlay .nea-gorilla-under-ring {
  z-index: 2;
  transform-style: flat;
}

.nea-intro-overlay .nea-gorilla-under-text {
  z-index: 2;
  transform-style: flat;
}

.nea-intro-overlay .nea-gorilla-top {
  z-index: 7;
  transform-style: preserve-3d;
}

/* ── Ring ── */
.nea-intro-overlay .nea-ring {
  position: absolute;
  left: -25%;
  top: 0;
  width: 100%;
  height: 100%;
  z-index: 3;
  opacity: 0.99;
  filter: brightness(0.9) contrast(1.15);
  will-change: transform;
  transform: translate(0px, 0px);
}

.nea-intro-overlay .nea-ring img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  filter: drop-shadow(0 0 20px rgba(180,180,180,.9));
}

/* ── Text logo ── */
.nea-intro-overlay .nea-text {
  position: absolute;
  right: -15%;
  top: 10%;
  width: 100%;
  height: 100%;
  z-index: 5;
  display: flex;
  align-items: center;
  will-change: transform;
  transform: translate(0px, 0px);
}

.nea-intro-overlay .nea-text img {
  width: 100%;
  object-fit: contain;
  object-position: left center;
  opacity: 0.95;
  display: block;
  filter: drop-shadow(0 0 20px rgba(0,0,0,.95));
}

/* ── Individual gorilla layers ── */
.nea-intro-overlay .nea-gorilla-layer {
  position: absolute;
  inset: 0;
  width: 65%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  user-select: none;
  pointer-events: none;
  will-change: transform, opacity, filter;
}

.nea-intro-overlay .nea-gorilla-l1 {
  opacity: 0.7;
  mix-blend-mode: screen;
  filter: brightness(0.4) contrast(0.7);
}

.nea-intro-overlay .nea-gorilla-l2 {
  opacity: 0.75;
  mix-blend-mode: screen;
  filter: brightness(0.7) contrast(1);
}

.nea-intro-overlay .nea-gorilla-l3,
.nea-intro-overlay .nea-gorilla-l4,
.nea-intro-overlay .nea-gorilla-l5,
.nea-intro-overlay .nea-gorilla-l6 {
  opacity: 1;
  filter: brightness(1.5) contrast(1.05);
}

/* ── Custom cursor dot ── */
.nea-intro-overlay .nea-dot {
  position: absolute;
  width: 6px;
  height: 6px;
  background: rgba(255,255,255,.7);
  border-radius: 50%;
  pointer-events: none;
  transform: translate(-50%, -50%);
  z-index: 99;
  transition: opacity .2s;
  opacity: 0;
}

/* ── Keyframes ── */
@keyframes frontSmokeFade {
  to { opacity: 0.12; }
}

@keyframes neaBgDrift {
  from { transform: translate(0%, 0%) scale(1.08); }
  to   { transform: translate(-3%, -2%) scale(1.12); }
}

@keyframes neaSweep {
  0%, 40%   { transform: translateX(-160%); opacity: 0; }
  55%       { opacity: .6; }
  80%, 100% { transform: translateX(160%); opacity: 0; }
}

@keyframes neaStageFadeIn {
  from { opacity: 0; transform: translateY(-50%) scale(5); }
  to   { opacity: 1; transform: scale(1); }
}

@keyframes neaQuake {
  0%   { transform: translate(0, 0) rotate(0deg); }
  15%  { transform: translate(-8px, 5px) rotate(-.3deg); }
  30%  { transform: translate(7px, -4px) rotate(.25deg); }
  45%  { transform: translate(-5px, 3px) rotate(-.2deg); }
  60%  { transform: translate(4px, -2px) rotate(.15deg); }
  75%  { transform: translate(-2px, 1px) rotate(-.08deg); }
  100% { transform: translate(0, 0) rotate(0deg); }
}

@keyframes neaIntroSlideDown {
  from { transform: translateY(0); }
  to   { transform: translateY(100vh); visibility: hidden; }
}

/* ── Mobile ── */
@media (max-width: 600px) {
  .nea-intro-overlay .nea-atmosphere {
    cursor: auto;
  }

  .nea-intro-overlay .nea-dot {
    display: none;
  }

  .nea-intro-overlay .nea-world {
    width: 98vw;
  }

  .nea-intro-overlay .nea-smoke-vid-b {
    display: none;
  }
}