:root {
  --ink: #edf8ff;
  --text: #c7dce9;
  --muted: #829eae;

  --cyan: #4bd7ff;
  --cyan-soft: #87e7ff;
  --cyan-dark: #0c7597;

  --gold: #e7a85f;

  --deep-0: #02080e;
  --deep-1: #04111b;
  --deep-2: #061d2a;
  --deep-3: #082b3a;

  --panel: rgba(5, 19, 29, 0.60);
  --panel-strong: rgba(5, 17, 26, 0.82);

  --line: rgba(115, 210, 245, 0.17);
  --line-hot: rgba(89, 220, 255, 0.48);

  --shadow:
    0 24px 70px rgba(0, 0, 0, 0.32);

  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--deep-0);
}

body {
  margin: 0;
  min-height: 100%;
  overflow-x: hidden;

  color: var(--ink);

  background:
    linear-gradient(
      180deg,
      #071d2a 0%,
      #04121d 35%,
      #020a10 72%,
      #05141d 100%
    );

  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;

  line-height: 1.55;
}

a {
  color: inherit;
}


/* ============================================================
   GLOBAL BACKGROUND
   ============================================================ */

.world {
  position: fixed;
  inset: 0;
  z-index: -5;
  overflow: hidden;
  pointer-events: none;

  background:
    linear-gradient(
      180deg,
      rgba(14, 60, 84, 0.95) 0%,
      rgba(5, 27, 41, 0.96) 24%,
      rgba(2, 13, 21, 0.99) 70%,
      rgba(3, 12, 18, 1) 100%
    );
}

#neural-ocean {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.88;
}

.water-light {
  position: absolute;
  left: -15%;
  right: -15%;
  top: -26%;
  height: 65vh;

  background:
    radial-gradient(
      ellipse at center,
      rgba(117, 219, 255, 0.18),
      rgba(35, 131, 174, 0.08) 35%,
      transparent 70%
    );

  filter: blur(18px);

  transform-origin: top center;
  animation: surface-breathe 12s ease-in-out infinite alternate;
}

.depth-glow {
  position: absolute;
  inset: 0;

  background:
    radial-gradient(
      circle at 50% 18%,
      rgba(82, 199, 236, 0.10),
      transparent 34%
    ),
    radial-gradient(
      circle at 18% 65%,
      rgba(17, 101, 142, 0.08),
      transparent 27%
    ),
    radial-gradient(
      circle at 80% 78%,
      rgba(6, 87, 114, 0.09),
      transparent 26%
    );

  transition: opacity 800ms ease;
}

.caustics {
  position: absolute;
  inset: -25%;

  opacity: 0.07;

  background:
    repeating-radial-gradient(
      ellipse at center,
      transparent 0 44px,
      rgba(115, 225, 255, 0.16) 48px,
      transparent 56px
    );

  filter: blur(4px);
  mix-blend-mode: screen;
}

.caustics-a {
  animation: drift-a 28s linear infinite;
}

.caustics-b {
  transform: scale(1.3) rotate(18deg);
  opacity: 0.045;
  animation: drift-b 37s linear infinite;
}

.vignette {
  position: absolute;
  inset: 0;

  background:
    linear-gradient(
      90deg,
      rgba(0, 5, 10, 0.38),
      transparent 17%,
      transparent 83%,
      rgba(0, 5, 10, 0.38)
    ),
    linear-gradient(
      180deg,
      transparent 0%,
      transparent 65%,
      rgba(0, 5, 9, 0.56) 100%
    );
}

@keyframes surface-breathe {
  from {
    transform: scale(1);
    opacity: 0.75;
  }

  to {
    transform: scale(1.12);
    opacity: 1;
  }
}

@keyframes drift-a {
  from {
    transform: translate3d(-3%, -2%, 0) rotate(0deg);
  }

  to {
    transform: translate3d(6%, 4%, 0) rotate(6deg);
  }
}

@keyframes drift-b {
  from {
    transform: scale(1.3) translate3d(4%, 0, 0) rotate(18deg);
  }

  to {
    transform: scale(1.3) translate3d(-5%, 5%, 0) rotate(24deg);
  }
}


/* ============================================================
   PROGRESS
   ============================================================ */

.scroll-progress {
  position: fixed;
  inset: 0 0 auto 0;
  height: 2px;
  z-index: 100;

  background: rgba(255,255,255,0.04);
}

#scroll-progress-bar {
  width: 0;
  height: 100%;

  background:
    linear-gradient(
      90deg,
      var(--cyan-dark),
      var(--cyan),
      var(--cyan-soft)
    );

  box-shadow:
    0 0 14px rgba(75, 215, 255, 0.65);
}


/* ============================================================
   NAVIGATION
   ============================================================ */

.topbar {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;

  backdrop-filter: blur(18px);

  background:
    linear-gradient(
      180deg,
      rgba(2, 10, 16, 0.84),
      rgba(2, 10, 16, 0.52)
    );

  border-bottom:
    1px solid rgba(118, 212, 246, 0.08);
}

.topbar-inner {
  width: min(var(--max), calc(100% - 40px));
  min-height: 72px;
  margin: 0 auto;

  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 2px;

  color: var(--ink);
  text-decoration: none;
}

.brand-overline {
  color: var(--cyan);
  font-size: 0.70rem;
  letter-spacing: 0.19em;
  font-weight: 750;
  text-transform: uppercase;
}

.brand-name {
  font-weight: 750;
  font-size: 0.96rem;
}

.brand-name span {
  color: var(--muted);
  font-weight: 500;
  margin-left: 7px;
}

.nav {
  display: flex;
  gap: 22px;
}

.nav a {
  color: var(--muted);
  font-size: 0.88rem;
  text-decoration: none;
  transition:
    color 150ms ease,
    text-shadow 150ms ease;
}

.nav a:hover {
  color: var(--cyan-soft);
  text-shadow:
    0 0 14px rgba(75, 215, 255, 0.32);
}


/* ============================================================
   SHARED
   ============================================================ */

.shell {
  width: min(var(--max), calc(100% - 40px));
  margin-inline: auto;
}

.scene {
  position: relative;
}

.section {
  min-height: 88vh;
  display: flex;
  align-items: center;

  padding:
    clamp(90px, 12vh, 150px)
    0;
}

.section-heading {
  max-width: 830px;
  margin-bottom: 46px;
}

.section-heading.narrow {
  max-width: 690px;
}

.section-label {
  margin-bottom: 12px;

  color: var(--cyan);

  font-size: 0.72rem;
  font-weight: 760;
  letter-spacing: 0.19em;
  text-transform: uppercase;
}

.section-heading h2,
.release-art-intro h2 {
  margin: 0;

  font-size:
    clamp(2.25rem, 5vw, 4.4rem);

  line-height: 1.02;
  letter-spacing: -0.035em;
}

.section-heading p {
  max-width: 760px;

  margin: 20px 0 0;

  color: var(--text);
  font-size: 1.05rem;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);

  transition:
    opacity 700ms ease,
    transform 700ms cubic-bezier(.22,.75,.28,1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}


/* ============================================================
   HERO
   ============================================================ */

.hero {
  min-height: 100vh;

  display: flex;
  align-items: center;

  padding:
    125px 0 70px;
}

.hero-inner {
  display: grid;
  grid-template-columns:
    minmax(0, 1.13fr)
    minmax(320px, 0.87fr);

  gap: clamp(48px, 7vw, 110px);
  align-items: center;
}

.hero-copy {
  max-width: 720px;
}

.eyebrow {
  display: inline-flex;
  gap: 8px;

  padding: 8px 13px;
  margin-bottom: 22px;

  border:
    1px solid rgba(75, 215, 255, 0.25);

  border-radius: 999px;

  background:
    rgba(5, 37, 54, 0.42);

  color: var(--cyan-soft);

  font-size: 0.73rem;
  font-weight: 760;
  letter-spacing: 0.12em;
  text-transform: uppercase;

  box-shadow:
    inset 0 0 28px rgba(75, 215, 255, 0.035);
}

.eyebrow span {
  color: var(--ink);
}

.hero h1 {
  margin: 0;

  font-size:
    clamp(5.5rem, 14vw, 11rem);

  line-height: 0.77;
  letter-spacing: -0.065em;

  text-shadow:
    0 0 45px rgba(96, 210, 255, 0.10);
}

.hero-subtitle {
  margin-top: 28px;

  color: #b9dded;

  font-size:
    clamp(1.35rem, 2.8vw, 2.05rem);

  letter-spacing: -0.02em;
}

.hero-lede {
  max-width: 670px;

  margin:
    25px 0 0;

  color: var(--ink);

  font-size:
    clamp(1.06rem, 1.45vw, 1.25rem);
}

.hero-secondary {
  max-width: 630px;

  margin:
    14px 0 0;

  color: var(--muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 13px;

  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  gap: 10px;

  padding: 13px 19px;

  border-radius: 999px;

  color: var(--ink);
  text-decoration: none;
  font-weight: 720;

  transition:
    transform 160ms ease,
    border-color 160ms ease,
    background 160ms ease,
    box-shadow 160ms ease;
}

.button.primary {
  border:
    1px solid rgba(75, 215, 255, 0.38);

  background:
    linear-gradient(
      180deg,
      rgba(21, 112, 148, 0.36),
      rgba(7, 67, 92, 0.26)
    );

  box-shadow:
    inset 0 0 22px rgba(75, 215, 255, 0.04);
}

.button.ghost {
  border:
    1px solid rgba(128, 190, 217, 0.16);

  color: var(--text);

  background:
    rgba(2, 14, 23, 0.25);
}

.button:hover {
  transform: translateY(-2px);

  border-color:
    rgba(99, 225, 255, 0.62);

  box-shadow:
    0 9px 30px rgba(0,0,0,0.22),
    0 0 22px rgba(75, 215, 255, 0.10);
}


/* ============================================================
   HERO SIGNAL
   ============================================================ */

.hero-status {
  position: relative;

  min-height: 450px;

  display: grid;
  place-items: center;
}

.status-ring {
  width: clamp(230px, 26vw, 340px);
  aspect-ratio: 1;

  display: grid;
  place-items: center;

  border-radius: 50%;

  border:
    1px solid rgba(75, 215, 255, 0.25);

  background:
    radial-gradient(
      circle,
      rgba(32, 146, 184, 0.12),
      rgba(5, 22, 33, 0.26) 57%,
      transparent 72%
    );

  box-shadow:
    0 0 80px rgba(18, 127, 164, 0.10),
    inset 0 0 60px rgba(75, 215, 255, 0.045);

  animation:
    ring-float 7s ease-in-out infinite alternate;
}

.status-ring::before,
.status-ring::after {
  content: "";
  position: absolute;

  border-radius: 50%;

  border:
    1px solid rgba(75, 215, 255, 0.08);
}

.status-ring::before {
  width: 120%;
  height: 120%;
}

.status-ring::after {
  width: 145%;
  height: 145%;
}

.status-ring-inner {
  text-align: center;
}

.status-ring strong {
  display: block;

  font-size:
    clamp(3rem, 6vw, 5.1rem);

  line-height: 1;
}

.status-ring small {
  display: block;

  margin-top: 7px;

  color: var(--muted);

  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.pulse-dot {
  display: inline-block;

  width: 8px;
  height: 8px;

  margin-bottom: 14px;

  border-radius: 50%;

  background: #73e8ff;

  box-shadow:
    0 0 0 5px rgba(75, 215, 255, 0.07),
    0 0 20px rgba(75, 215, 255, 0.80);

  animation:
    pulse 2.2s ease-in-out infinite;
}

.signal-label {
  position: absolute;

  color: rgba(181, 226, 244, 0.52);

  font-size: 0.64rem;
  letter-spacing: 0.18em;
  font-weight: 720;
}

.signal-label-a {
  top: 18%;
  right: 3%;
}

.signal-label-b {
  left: 0;
  top: 58%;
}

.signal-label-c {
  bottom: 8%;
  right: 18%;
}

@keyframes ring-float {
  from {
    transform:
      translateY(-5px)
      rotate(-1deg);
  }

  to {
    transform:
      translateY(8px)
      rotate(1deg);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 0.45;
    transform: scale(0.85);
  }

  50% {
    opacity: 1;
    transform: scale(1.1);
  }
}

.scroll-cue {
  position: absolute;
  left: 50%;
  bottom: 28px;

  transform: translateX(-50%);

  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;

  color: rgba(198, 230, 242, 0.35);

  font-size: 0.65rem;
  letter-spacing: 0.19em;
  text-transform: uppercase;
}

.scroll-cue-line {
  height: 38px;
  width: 1px;

  background:
    linear-gradient(
      to bottom,
      rgba(100, 220, 255, 0.6),
      transparent
    );

  animation:
    cue 1.9s ease-in-out infinite;
}

@keyframes cue {
  0%, 100% {
    opacity: 0.3;
    transform: scaleY(0.75);
    transform-origin: top;
  }

  50% {
    opacity: 1;
    transform: scaleY(1);
    transform-origin: top;
  }
}


/* ============================================================
   FEATURE GRID
   ============================================================ */

.feature-grid {
  display: grid;
  grid-template-columns:
    repeat(4, minmax(0, 1fr));

  gap: 14px;
}

.feature-card {
  min-height: 235px;

  padding: 24px;

  border-radius: 18px;

  border:
    1px solid var(--line);

  background:
    linear-gradient(
      180deg,
      rgba(6, 28, 40, 0.66),
      rgba(3, 16, 25, 0.50)
    );

  backdrop-filter: blur(8px);

  box-shadow:
    var(--shadow);

  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background 180ms ease;
}

.feature-card:hover {
  transform: translateY(-5px);

  border-color:
    rgba(75, 215, 255, 0.38);

  background:
    linear-gradient(
      180deg,
      rgba(8, 42, 58, 0.73),
      rgba(4, 21, 32, 0.60)
    );
}

.feature-index {
  color:
    rgba(75, 215, 255, 0.45);

  font-size: 0.72rem;
  letter-spacing: 0.15em;
}

.feature-card h3 {
  margin:
    42px 0 10px;

  font-size: 1.18rem;
}

.feature-card p {
  margin: 0;

  color: var(--muted);

  font-size: 0.94rem;
}


/* ============================================================
   RUNTIME MAP
   ============================================================ */

.architecture-section {
  min-height: 100vh;
}

.runtime-map {
  display: grid;

  grid-template-columns:
    1fr auto 1fr auto 1fr auto 1fr auto 1fr;

  gap: 12px;

  align-items: center;

  padding:
    34px 30px;

  border:
    1px solid var(--line);

  border-radius: 24px;

  background:
    rgba(2, 14, 22, 0.55);

  backdrop-filter:
    blur(10px);

  box-shadow:
    var(--shadow);
}

.runtime-node {
  position: relative;

  min-height: 155px;

  display: flex;
  flex-direction: column;
  justify-content: center;

  padding: 18px;

  border-radius: 17px;

  border:
    1px solid rgba(104, 199, 234, 0.14);

  background:
    rgba(10, 37, 51, 0.46);

  transition:
    transform 170ms ease,
    border-color 170ms ease,
    box-shadow 170ms ease,
    background 170ms ease;
}

.runtime-node:hover {
  transform: translateY(-5px) scale(1.015);

  border-color:
    var(--line-hot);

  background:
    rgba(12, 54, 70, 0.65);

  box-shadow:
    0 0 30px rgba(65, 210, 255, 0.10);
}

.runtime-node span {
  color: rgba(75, 215, 255, 0.5);

  font-size: 0.66rem;
  letter-spacing: 0.14em;
}

.runtime-node strong {
  margin-top: 20px;

  font-size: 1.08rem;
}

.runtime-node small {
  color: var(--muted);
}

.runtime-arrow {
  color: rgba(96, 217, 255, 0.38);
  font-size: 1.4rem;
}

.runtime-note {
  max-width: 720px;

  margin:
    22px auto 0;

  color: var(--muted);

  text-align: center;
  font-size: 0.90rem;
}


/* ============================================================
   RESEARCH
   ============================================================ */

.research-layout {
  display: grid;
  grid-template-columns:
    repeat(2, minmax(0, 1fr));

  gap: 15px;
}

.research-panel {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 22px;

  align-items: start;

  padding: 27px;

  border-radius: 19px;

  border:
    1px solid var(--line);

  background:
    rgba(3, 15, 23, 0.67);

  backdrop-filter:
    blur(9px);

  box-shadow:
    var(--shadow);
}

.research-number {
  width: 45px;
  height: 45px;

  display: grid;
  place-items: center;

  border-radius: 50%;

  color: var(--cyan-soft);

  border:
    1px solid rgba(75, 215, 255, 0.26);

  background:
    rgba(31, 135, 168, 0.11);

  font-weight: 760;
}

.research-panel h3 {
  margin: 0 0 7px;
}

.research-panel p {
  margin: 0;

  color: var(--muted);
}


/* ============================================================
   RELEASE
   ============================================================ */

.release-section {
  min-height: 95vh;
}

.release-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;

  gap: 22px;
}

.release-data,
.release-copy {
  border:
    1px solid var(--line);

  border-radius: 22px;

  background:
    rgba(3, 15, 23, 0.67);

  backdrop-filter:
    blur(10px);

  box-shadow:
    var(--shadow);
}

.release-data {
  padding: 10px 25px;
}

.release-line {
  display: flex;
  justify-content: space-between;
  gap: 25px;

  padding:
    18px 3px;

  border-bottom:
    1px solid rgba(119, 202, 232, 0.10);
}

.release-line:last-child {
  border-bottom: 0;
}

.release-line span {
  color: var(--muted);
}

.release-line strong {
  color: var(--cyan-soft);
}

.release-copy {
  padding:
    clamp(28px, 4vw, 54px);
}

.release-copy blockquote {
  margin: 0;

  color: var(--ink);

  font-size:
    clamp(1.55rem, 3vw, 2.45rem);

  line-height: 1.18;
  letter-spacing: -0.03em;
}

.release-copy p {
  color: var(--muted);

  margin:
    28px 0 18px;
}

.text-link {
  color: var(--cyan-soft);

  text-decoration: none;
  font-weight: 720;
}


/* ============================================================
   RELEASE ART FINALE
   ============================================================ */

.release-art-section {
  position: relative;

  padding:
    120px 0 0;

  overflow: hidden;
}

.release-art-intro {
  padding-bottom: 52px;
}

.release-art-intro h2 {
  max-width: 820px;
}

.release-art-intro h2 span {
  color: var(--cyan-soft);
}

.release-art-intro p {
  color: var(--muted);

  max-width: 660px;
}

.release-art {
  position: relative;

  display: block;

  width: min(1500px, 96vw);

  margin:
    0 auto;

  overflow: hidden;

  border:
    1px solid rgba(92, 211, 249, 0.18);

  border-radius:
    24px 24px 0 0;

  background: #02080d;

  box-shadow:
    0 -25px 100px rgba(31, 157, 199, 0.10),
    0 0 90px rgba(0, 0, 0, 0.36);

  text-decoration: none;
}

.release-art::before {
  content: "";

  position: absolute;
  inset: 0;
  z-index: 2;

  background:
    linear-gradient(
      180deg,
      rgba(2, 10, 17, 0.22) 0%,
      transparent 28%,
      transparent 68%,
      rgba(2, 10, 17, 0.68) 100%
    );

  pointer-events: none;
}

.release-art img {
  width: 100%;
  display: block;

  transition:
    transform 900ms cubic-bezier(.2,.75,.25,1),
    filter 500ms ease;

  filter:
    saturate(0.92)
    brightness(0.92);
}

.release-art:hover img {
  transform: scale(1.025);

  filter:
    saturate(1.06)
    brightness(1.03);
}

.release-art-overlay {
  position: absolute;

  left: 0;
  right: 0;
  bottom: 0;
  z-index: 3;

  padding:
    55px clamp(25px, 5vw, 75px)
    32px;

  display: flex;
  justify-content: flex-end;

  background:
    linear-gradient(
      to top,
      rgba(2, 9, 15, 0.90),
      transparent
    );
}

.release-art-overlay div {
  text-align: right;
}

.release-art-overlay span {
  display: block;

  color: var(--muted);

  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.13em;
}

.release-art-overlay strong {
  display: block;

  margin-top: 5px;

  color: var(--cyan-soft);

  font-size:
    clamp(1rem, 2vw, 1.35rem);
}


/* ============================================================
   FOOTER
   ============================================================ */

.footer {
  background:
    rgba(2, 8, 13, 0.95);

  border-top:
    1px solid rgba(107, 206, 242, 0.08);
}

.footer-inner {
  min-height: 120px;

  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}

.footer strong {
  display: block;
}

.footer span {
  display: block;

  margin-top: 3px;

  color: var(--muted);
  font-size: 0.85rem;
}

.footer-links {
  display: flex;
  gap: 20px;
}

.footer-links a {
  color: var(--muted);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--cyan-soft);
}


/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 950px) {

  .hero-inner {
    grid-template-columns: 1fr;
  }

  .hero-status {
    min-height: 350px;
  }

  .feature-grid {
    grid-template-columns:
      repeat(2, minmax(0, 1fr));
  }

  .runtime-map {
    grid-template-columns: 1fr;
  }

  .runtime-arrow {
    transform: rotate(90deg);

    justify-self: center;
  }

  .runtime-node {
    min-height: 115px;
  }

  .release-grid {
    grid-template-columns: 1fr;
  }

}

@media (max-width: 680px) {

  .topbar-inner {
    min-height: 64px;
  }

  .brand-name span {
    display: none;
  }

  .nav {
    gap: 12px;
  }

  .nav a {
    font-size: 0.78rem;
  }

  .hero {
    padding-top: 110px;
  }

  .hero-status {
    min-height: 280px;
  }

  .status-ring {
    width: 220px;
  }

  .feature-grid,
  .research-layout {
    grid-template-columns: 1fr;
  }

  .release-art {
    width: 100%;
    border-radius: 0;
    border-left: 0;
    border-right: 0;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;

    padding:
      30px 0;
  }

}


/* ============================================================
   ACCESSIBILITY
   ============================================================ */

@media (prefers-reduced-motion: reduce) {

  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }

}

/* AIR PERFORMANCE PATCH START */

/*
 * Performance pass:
 * keep the underwater aesthetic while avoiding
 * expensive full-page blur recomposition.
 */

#neural-ocean {
  transform: translateZ(0);
}

#scroll-progress-bar {
  width: 100%;
  transform: scaleX(0);
  transform-origin: left center;
  will-change: transform;
}

.topbar {
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

/*
 * Repeated backdrop filters over an animated
 * canvas are especially expensive. Slightly
 * stronger backgrounds retain the glass-like
 * appearance without recomputing blur for
 * every card on every frame.
 */

.feature-card,
.runtime-map,
.research-panel,
.release-data,
.release-copy {
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.feature-card {
  background:
    linear-gradient(
      180deg,
      rgba(6, 28, 40, 0.82),
      rgba(3, 16, 25, 0.76)
    );
}

.runtime-map,
.research-panel,
.release-data,
.release-copy {
  background:
    rgba(3, 15, 23, 0.82);
}

.water-light {
  filter: blur(12px);
  will-change: transform, opacity;
}

.caustics {
  filter: blur(2px);
  will-change: transform;
}

.status-ring,
.pulse-dot,
.scroll-cue-line,
.release-art img {
  will-change: transform;
}

@media (max-width: 680px) {

  .caustics-b {
    display: none;
  }

  .caustics {
    opacity: 0.045;
  }

  #neural-ocean {
    opacity: 0.78;
  }

}

/* AIR PERFORMANCE PATCH END */


/* ============================================================
   AIR PERFORMANCE PASS 2
   ============================================================ */

/*
 * The canvas now provides the moving atmosphere.
 * Keep CSS atmosphere static so the browser does
 * not have multiple full-screen animation layers.
 */

.caustics {
  display: none !important;
}

.water-light {
  animation: none !important;
  filter: none !important;
  will-change: auto !important;

  opacity: 0.72;

  background:
    radial-gradient(
      ellipse at center,
      rgba(105, 218, 255, 0.14),
      rgba(29, 118, 158, 0.045) 37%,
      transparent 70%
    );
}

.depth-glow {
  transition: none;
}

#neural-ocean {
  opacity: 0.80;
  transform: none;
  will-change: auto;
}


/*
 * No backdrop-filter anywhere in the page.
 * This prevents the browser from repeatedly
 * sampling the animated layer behind content.
 */

.topbar,
.feature-card,
.runtime-map,
.research-panel,
.release-data,
.release-copy {
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}

.topbar {
  background:
    rgba(2, 10, 16, 0.94);
}


/*
 * Large soft shadows look nice but widen the
 * repaint area considerably while scrolling.
 */

.feature-card,
.runtime-map,
.research-panel,
.release-data,
.release-copy {
  box-shadow:
    0 12px 34px
    rgba(0, 0, 0, 0.23);
}


/*
 * Give the browser stronger isolation boundaries.
 */

.feature-card,
.runtime-node,
.research-panel,
.release-data,
.release-copy {
  contain: paint;
}


/*
 * Let the browser skip most below-the-fold
 * rendering until sections approach the viewport.
 */

.section {
  content-visibility: auto;
  contain-intrinsic-size: auto 850px;
}

.release-art-section {
  content-visibility: auto;
  contain-intrinsic-size: auto 1100px;
}


/*
 * Avoid permanently reserving compositor layers.
 */

.status-ring,
.pulse-dot,
.scroll-cue-line,
.release-art img {
  will-change: auto;
}


/*
 * Keep hover behavior but reduce costly image
 * filter recomposition.
 */

.release-art img {
  filter: brightness(0.94);
}

.release-art:hover img {
  filter: brightness(1);
}


/*
 * Narrow devices get an even cheaper background.
 */

@media (max-width: 760px) {

  #neural-ocean {
    opacity: 0.68;
  }

  .water-light {
    opacity: 0.56;
  }

}


/* ============================================================
   AIR NEURAL LAYER VISIBILITY FIX
   ============================================================ */

/*
 * The atmospheric world used to sit at z-index -5.
 * Because body paints its own opaque background,
 * the neural canvas could end up behind that paint.
 *
 * Keep the atmospheric system inside the page's
 * stacking context instead.
 */

html {
  background: #02080e;
}

body {
  position: relative;
  isolation: isolate;
  background: transparent;
}

/*
 * World is now the visible background layer.
 */

.world {
  z-index: 0;
}

/*
 * Explicit ordering inside the atmospheric system.
 */

.water-light {
  z-index: 1;
}

.depth-glow {
  z-index: 2;
}

#neural-ocean {
  z-index: 3;
  opacity: 0.92;
}

.vignette {
  z-index: 4;
}

/*
 * Actual page content remains above the atmosphere.
 */

main {
  position: relative;
  z-index: 2;
}

.footer {
  position: relative;
  z-index: 2;
}

/*
 * Keep cards translucent enough that the neural
 * topology can occasionally be seen behind them.
 */

.feature-card {
  background:
    linear-gradient(
      180deg,
      rgba(6, 28, 40, 0.78),
      rgba(3, 16, 25, 0.72)
    );
}

.runtime-map,
.research-panel,
.release-data,
.release-copy {
  background:
    rgba(3, 15, 23, 0.76);
}

@media (max-width: 760px) {

  #neural-ocean {
    opacity: 0.78;
  }

}