/* ═══════════════════════════════════════════════════════════════
   AETHER-09 — celestial layer
   The observatory shell, the optical link, the hand.
   ═══════════════════════════════════════════════════════════════ */

#cosmos{
  position:fixed;
  inset:0;
  width:100%;
  height:100%;
  display:block;
  z-index:0;
  pointer-events:none;
  background:#05060a;
}
main{ position:relative; z-index:1; }
.no-webgl #cosmos{ display:none; }

/* ── hero scaffolding ─────────────────────────────────────────── */
.hero.celestial{
  min-height:100svh;
  padding-top:calc(var(--navh) + 26px);
  isolation:isolate;
}
.hero__scrim{
  position:absolute;
  inset:0;
  z-index:1;
  pointer-events:none;
  background:
    linear-gradient(90deg, rgba(5,6,10,.88) 0%, rgba(5,6,10,.62) 20%, rgba(5,6,10,.24) 38%, rgba(5,6,10,0) 55%),
    linear-gradient(0deg, rgba(5,6,10,.94) 0%, rgba(5,6,10,.55) 21%, rgba(5,6,10,.14) 43%, transparent 60%),
    linear-gradient(180deg, rgba(5,6,10,.6) 0%, transparent 18%);
}
.hero.celestial .hero__grid{
  opacity:.13;
  mask-image:radial-gradient(ellipse 70% 60% at 50% 45%, #000 0%, transparent 74%);
  -webkit-mask-image:radial-gradient(ellipse 70% 60% at 50% 45%, #000 0%, transparent 74%);
}
.hero.celestial .hero__kicker{
  text-shadow:0 2px 18px rgba(5,6,10,.9);
}
.hero.celestial .hero__lede{
  text-shadow:0 2px 18px rgba(5,6,10,.65);
}
.hero.celestial .hero__meta{ z-index:6; }
.hero.celestial .hero__content{ z-index:5; }
.hero.celestial .hero__bar{ z-index:7; }

.hero__title{
  font-size:clamp(4.6rem, 18.8vw, 20rem);
  position:relative;
}
.hero__no{
  font-family:var(--font-mono);
  font-size:.105em;
  font-weight:400;
  letter-spacing:.08em;
  line-height:1;
  color:var(--accent);
  align-self:flex-start;
  margin-left:.12em;
  margin-top:.2em;
  text-shadow:0 0 22px rgba(var(--accent-rgb),.55);
  display:inline-block;
}
.hero.celestial .ch--stroke{
  -webkit-text-stroke-color:rgba(242,241,234,.64);
  text-shadow:0 2px 26px rgba(5,6,10,.55);
}
.planet-stage,
.object-metrics{
  opacity:0;
  transition:opacity 1.6s var(--ease) 1s;
}
html.is-loaded .planet-stage,
html.is-loaded .object-metrics{ opacity:1; }
.hero__scrim{ opacity:0; transition:opacity 1.8s var(--ease) .9s; }
html.is-loaded .hero__scrim{ opacity:1; }

.object-metrics{
  position:absolute;
  left:var(--pad);
  top:calc(var(--navh) + 74px);
  z-index:6;
  display:flex;
  flex-direction:column;
  gap:0;
  min-width:170px;
  border-left:1px solid var(--line);
  padding-left:16px;
}
.object-metrics div{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:24px;
  padding:7px 0;
  border-bottom:1px solid var(--line-soft);
}
.object-metrics span{
  font-family:var(--font-mono);
  font-size:7px;
  letter-spacing:.17em;
  color:var(--dim);
}
.object-metrics b{
  font-family:var(--font-display);
  font-weight:400;
  font-size:12px;
  letter-spacing:.03em;
  color:var(--ink-soft);
  font-variant-numeric:tabular-nums;
}
.object-metrics b i{ font-style:normal; font-size:7px; color:var(--accent); margin-left:2px; }

/* ── planet HUD stage ─────────────────────────────────────────── */
.planet-stage{
  position:absolute;
  left:60.2%;
  top:48%;
  width:min(88vw, 1400px);
  height:min(58vh, 620px);
  transform:translate(-50%,-50%);
  z-index:2;
  pointer-events:none;
}
.planet-reticle{
  position:absolute;
  left:50%; top:49%;
  width:min(56vh, 560px);
  aspect-ratio:1;
  transform:translate(-50%,-50%);
  border-radius:50%;
  border:1px dashed rgba(255,255,255,.14);
  opacity:.85;
}
.planet-reticle::before{
  content:"";
  position:absolute;
  inset:-11px;
  border-radius:50%;
  background:repeating-conic-gradient(from 0deg,
    rgba(var(--accent-rgb),.42) 0deg .32deg,
    transparent .32deg 6deg);
  -webkit-mask:radial-gradient(circle, transparent 68%, #000 69%, #000 71.5%, transparent 72.5%);
  mask:radial-gradient(circle, transparent 68%, #000 69%, #000 71.5%, transparent 72.5%);
  animation:spin 90s linear infinite;
}
.planet-reticle::after{
  content:"";
  position:absolute;
  left:50%; top:50%;
  width:6px; height:6px;
  border:1px solid rgba(var(--accent-rgb),.65);
  border-radius:50%;
  transform:translate(-50%,-50%);
  box-shadow:0 0 14px rgba(var(--accent-rgb),.55);
}
.orbit-arc{
  position:absolute;
  left:-4%; top:50%;
  width:108%; height:66%;
  border:1px solid rgba(var(--accent-rgb),.20);
  border-radius:50%;
  transform:translateY(-50%) rotate(-7deg);
}
.orbit-arc--b{
  left:-8%;
  width:116%; height:78%;
  border-style:dashed;
  border-color:rgba(var(--accent-2-rgb),.16);
  transform:translateY(-50%) rotate(-4deg);
  opacity:.7;
}
.orbit-node{
  position:absolute;
  width:6px; height:6px;
  border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 16px 3px rgba(var(--accent-rgb),.5);
}
.orbit-node--a{ left:9%; top:35%; }
.orbit-node--b{ right:11%; top:60%; background:var(--accent-2); box-shadow:0 0 16px 3px rgba(var(--accent-2-rgb),.5); }

.planet-label{
  position:absolute;
  display:flex;
  align-items:baseline;
  gap:7px;
  font-family:var(--font-mono);
  font-size:7px;
  letter-spacing:.15em;
  color:rgba(242,241,234,.42);
  white-space:nowrap;
}
.planet-label i{
  width:4px; height:4px;
  border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 8px var(--accent);
  flex:none;
  transform:translateY(-1px);
}
.planet-label b{ font-weight:400; color:rgba(242,241,234,.68); }
.planet-label--a{ left:1%; top:11%; }
.planet-label--b{ right:6%; bottom:14%; }
.planet-label--c{ left:44%; top:2%; color:rgba(242,241,234,.30); }
.planet-label--d{ right:8%; top:17%; color:rgba(242,241,234,.30); }

/* ── hero bottom area ─────────────────────────────────────────── */
.hero__lede-col{ max-width:520px; }
.hand-privacy{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-top:16px;
  font-family:var(--font-mono);
  font-size:7px;
  letter-spacing:.16em;
  color:rgba(255,255,255,.32);
  text-transform:uppercase;
}
.hand-privacy i{
  width:5px; height:5px;
  border-radius:50%;
  border:1px solid var(--accent);
  box-shadow:0 0 8px rgba(var(--accent-rgb),.45);
}
.hero.celestial .hero__actions .btn{ min-height:50px; }

.gesture-legend{
  display:flex;
  align-items:center;
  gap:14px;
  min-width:0;
  justify-content:center;
  font-family:var(--font-mono);
  font-size:7px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--dim);
}
.gesture-legend__live{
  display:inline-flex;
  align-items:center;
  gap:7px;
  color:var(--muted);
  flex:none;
}
.gesture-legend__live i{
  width:5px; height:5px;
  border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 9px var(--accent);
  animation:pulse 2.2s ease-in-out infinite;
}
.gesture-legend__live b{
  font-weight:400;
  color:var(--accent);
  letter-spacing:.16em;
}
.gesture-legend__hint{ color:rgba(255,255,255,.34); font-size:6.5px; }
.gesture-legend__keys{ color:rgba(255,255,255,.22); font-size:6.5px; white-space:nowrap; }
.gesture-legend__keys b{ color:rgba(255,255,255,.5); font-weight:400; }

.hand-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  min-height:32px;
  padding:0 12px;
  border:1px solid var(--line);
  border-radius:99px;
  font-family:var(--font-mono);
  font-size:7px;
  letter-spacing:.14em;
  color:var(--muted);
  text-transform:uppercase;
  transition:color .3s, border-color .3s, background .3s;
  white-space:nowrap;
}
.hand-link i{
  width:5px; height:5px;
  border-radius:50%;
  background:var(--dim);
  transition:background .3s, box-shadow .3s;
}
.hand-link:hover{ color:var(--ink); border-color:rgba(var(--accent-rgb),.4); }
.hand-link.is-on{
  color:var(--accent);
  border-color:rgba(var(--accent-rgb),.45);
  background:rgba(var(--accent-rgb),.05);
}
.hand-link.is-on i{ background:var(--accent); box-shadow:0 0 8px var(--accent); }
.hand-link.is-loading i{ background:var(--accent-2); box-shadow:0 0 8px var(--accent-2); animation:pulse 1s infinite; }

/* ── optical link / camera ───────────────────────────────────── */
.handcam{
  position:absolute;
  right:var(--pad);
  top:calc(var(--navh) + 66px);
  width:214px;
  z-index:9;
  padding:9px;
  border:1px solid rgba(255,255,255,.13);
  border-radius:10px;
  background:rgba(6,8,13,.76);
  backdrop-filter:blur(16px) saturate(1.25);
  -webkit-backdrop-filter:blur(16px) saturate(1.25);
  box-shadow:0 24px 80px -24px rgba(0,0,0,.85), 0 0 42px -20px rgba(var(--accent-rgb),.35);
  opacity:0;
  visibility:hidden;
  transform:translateY(10px) scale(.98);
  transition:opacity .5s var(--ease), transform .5s var(--ease), visibility .5s;
}
.handcam.is-on{ opacity:1; visibility:visible; transform:none; }
.handcam__head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:8px;
  padding:0 2px 8px;
  font-family:var(--font-mono);
  font-size:6.5px;
  letter-spacing:.16em;
  color:var(--muted);
}
.handcam__head span{ display:inline-flex; align-items:center; gap:6px; }
.handcam__head i{
  width:4px; height:4px;
  border-radius:50%;
  background:var(--accent-2);
  animation:pulse 1.4s infinite;
}
.handcam.is-ready .handcam__head i{ background:var(--accent); box-shadow:0 0 7px var(--accent); }
.handcam__close{
  width:20px; height:20px;
  display:grid;
  place-items:center;
  border:1px solid var(--line);
  border-radius:50%;
  color:var(--muted);
  font-size:12px;
  line-height:1;
  transition:color .3s, border-color .3s;
}
.handcam__close:hover{ color:var(--accent); border-color:var(--accent); }
.handcam__view{
  position:relative;
  aspect-ratio:4/3;
  overflow:hidden;
  border-radius:5px;
  background:#030409;
  border:1px solid var(--line-soft);
}
.handcam__view video,
.handcam__view canvas{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
}
.handcam__view video{ transform:scaleX(-1); opacity:.62; filter:saturate(.55) contrast(1.15); }
.handcam__view canvas{ z-index:2; }
.handcam__loading{
  position:absolute;
  inset:0;
  z-index:4;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:12px;
  text-align:center;
  font-family:var(--font-mono);
  font-size:6.5px;
  letter-spacing:.16em;
  line-height:1.7;
  color:var(--accent);
  background:
    repeating-linear-gradient(0deg, transparent 0 5px, rgba(255,255,255,.025) 5px 6px),
    rgba(3,4,9,.55);
}
.handcam.is-ready .handcam__loading{ display:none; }
.handcam.is-error .handcam__loading{ color:#ff8a7a; }
.handcam.is-sim .handcam__view video{ opacity:0; }
.handcam.is-sim .handcam__view{
  background:
    radial-gradient(circle at 50% 45%, rgba(var(--accent-rgb),.12), transparent 55%),
    #04100a;
}
.handcam__corners{ position:absolute; inset:7px; z-index:3; pointer-events:none; }
.handcam__corners i{
  position:absolute;
  width:9px; height:9px;
  border-color:rgba(var(--accent-rgb),.55);
  border-style:solid;
  border-width:0;
}
.handcam__corners i:nth-child(1){ left:0; top:0; border-left-width:1px; border-top-width:1px; }
.handcam__corners i:nth-child(2){ right:0; top:0; border-right-width:1px; border-top-width:1px; }
.handcam__corners i:nth-child(3){ left:0; bottom:0; border-left-width:1px; border-bottom-width:1px; }
.handcam__corners i:nth-child(4){ right:0; bottom:0; border-right-width:1px; border-bottom-width:1px; }
.handcam__hint{
  position:absolute;
  left:8px; bottom:6px;
  z-index:3;
  font-family:var(--font-mono);
  font-size:5.8px;
  letter-spacing:.16em;
  color:rgba(255,255,255,.28);
}
.handcam__foot{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:6px;
  padding:8px 2px 1px;
  font-family:var(--font-mono);
  font-size:6px;
  letter-spacing:.12em;
  color:var(--dim);
}
.handcam__foot b{
  font-weight:400;
  font-size:8px;
  letter-spacing:.1em;
  color:var(--accent);
  text-transform:uppercase;
}
.handcam__foot span{ font-size:5.8px; color:rgba(255,255,255,.3); text-align:right; }

/* camera active state for the page */
.hero.hand-active .planet-label--b,
.hero.hand-active .planet-label--d{ opacity:0; }

/* ── responsive celestial ────────────────────────────────────── */
@media (max-width: 1200px){
  .gesture-legend__keys{ display:none; }
  .planet-stage{ left:62%; }
  .object-metrics{ display:none; }
}

@media (max-width: 900px){
  .hero.celestial{ min-height:100svh; }
  .hero__scrim{
    background:
      linear-gradient(0deg, rgba(5,6,10,.98) 0%, rgba(5,6,10,.80) 22%, rgba(5,6,10,.28) 44%, transparent 62%),
      linear-gradient(90deg, rgba(5,6,10,.78) 0%, rgba(5,6,10,.32) 38%, transparent 62%),
      linear-gradient(180deg, rgba(5,6,10,.62) 0%, transparent 20%);
  }
  .hero__title{ font-size:clamp(4.4rem, 23vw, 13rem); }
  .hero__no{ margin-top:.05em; }
  .planet-stage{
    left:50%;
    top:37%;
    width:120vw;
    height:50vh;
  }
  .planet-reticle{ width:80vw; border-color:rgba(255,255,255,.1); }
  .orbit-arc{ width:130%; left:-15%; height:48%; }
  .orbit-arc--b{ width:140%; left:-20%; height:58%; }
  .planet-label{ display:none; }
  .object-metrics{ display:none; }
  .handcam{
    top:calc(var(--navh) + 24px);
    right:16px;
    width:136px;
    padding:7px;
  }
  .handcam__head{ font-size:5.6px; padding-bottom:6px; }
  .handcam__foot b{ font-size:7px; }
  .handcam__foot span{ display:none; }
  .handcam__hint{ font-size:5px; }
  .hero__lede-col{ max-width:430px; }
  .gesture-legend{ justify-content:flex-start; gap:8px; flex-wrap:wrap; }
  .gesture-legend__hint{ display:inline; font-size:5.8px; }
  .hero__bar{ gap:12px; }
  .hand-privacy{ font-size:6px; }
}

@media (max-width: 620px){
  .hero__title{ font-size:23.5vw; }
  .hero__no{ font-size:.11em; margin-left:.06em; }
  .hero.celestial .hero__content{ padding-top:clamp(60px,12vh,150px); }
  .gesture-legend__live b{ font-size:6.5px; }
  .gesture-legend__live i{ width:4px; height:4px; }
  .handcam{ width:122px; top:calc(var(--navh) + 18px); right:12px; }
  .handcam__head span b{ display:none; }
  .handcam__head{ justify-content:flex-end; }
  .handcam__foot{ padding-top:6px; }
  .hero__bar{ flex-wrap:wrap; }
  .hand-link{ margin-left:auto; }
  .planet-stage{ top:35%; }
  .planet-reticle{ width:78vw; }
  .hand-privacy{ max-width:240px; line-height:1.6; }
}

/* when the optical link is on, compact the hero actions on small screens */
@media (max-width: 620px){
  .handcam.is-on ~ .hero__content .hero__actions{ opacity:.85; }
}

/* ═══════════════════════════════════════════════════════════════
   P0 / P1 — optical gate, calibration, confidence, continuity
   ═══════════════════════════════════════════════════════════════ */

/* sound */
.sound-btn{
  display:inline-flex;
  align-items:center;
  gap:7px;
  height:28px;
  padding:0 9px;
  border:1px solid var(--line);
  border-radius:99px;
  color:var(--dim);
  font-family:var(--font-mono);
  font-size:6.5px;
  letter-spacing:.14em;
  text-transform:uppercase;
  transition:color .3s, border-color .3s, background .3s;
}
.sound-btn em{ font-style:normal; }
.sound-btn__icon{ display:flex; align-items:flex-end; gap:2px; height:10px; }
.sound-btn__icon i{ display:block; width:2px; background:currentColor; height:5px; border-radius:1px; }
.sound-btn__icon i:nth-child(2){ height:9px; }
.sound-btn__icon i:nth-child(3){ height:7px; }
.sound-btn:hover{ color:var(--ink); border-color:rgba(var(--accent-rgb),.4); }
.sound-btn.is-on{ color:var(--accent); border-color:rgba(var(--accent-rgb),.42); background:rgba(var(--accent-rgb),.05); }
.sound-btn.is-on .sound-btn__icon i{ animation:soundbar .9s ease-in-out infinite alternate; }
.sound-btn.is-on .sound-btn__icon i:nth-child(2){ animation-delay:.15s; }
.sound-btn.is-on .sound-btn__icon i:nth-child(3){ animation-delay:.3s; }
@keyframes soundbar{
  0%{ height:3px }
  100%{ height:10px }
}

/* hand marker on the planet */
.hand-marker{
  position:absolute;
  left:50%; top:44%;
  z-index:6;
  pointer-events:none;
  opacity:0;
  transform:translate(-50%,-50%);
  transition:opacity .35s, left .08s linear, top .08s linear;
}
.hand-marker.is-on{ opacity:1; }
.hand-marker span{
  display:block;
  width:30px; height:30px;
  border:1px solid rgba(var(--accent-rgb),.75);
  border-radius:50%;
  box-shadow:0 0 22px rgba(var(--accent-rgb),.35), inset 0 0 12px rgba(var(--accent-rgb),.12);
  position:relative;
}
.hand-marker span::before,
.hand-marker span::after{
  content:"";
  position:absolute;
  left:50%; top:50%;
  background:rgba(var(--accent-rgb),.7);
  transform:translate(-50%,-50%);
}
.hand-marker span::before{ width:1px; height:42px; }
.hand-marker span::after{ width:42px; height:1px; }
.hand-marker b{
  position:absolute;
  left:39px; top:50%;
  transform:translateY(-50%);
  font-family:var(--font-mono);
  font-size:6px;
  font-weight:400;
  letter-spacing:.16em;
  color:var(--accent);
  white-space:nowrap;
}

.planet-shockwave{
  position:absolute;
  left:50%; top:47%;
  width:110px; height:110px;
  border:1px solid rgba(var(--accent-rgb),.7);
  border-radius:50%;
  transform:translate(-50%,-50%) scale(.1);
  opacity:0;
  pointer-events:none;
  z-index:5;
}
.planet-shockwave.is-on{ animation:planet-shock .95s var(--ease) forwards; }
@keyframes planet-shock{
  0%{ transform:translate(-50%,-50%) scale(.15); opacity:.9 }
  70%{ opacity:.25 }
  100%{ transform:translate(-50%,-50%) scale(3.5); opacity:0 }
}

/* persistent miniature body */
.mini-body{
  position:fixed;
  right:27px; bottom:28px;
  z-index:940;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:9px;
  opacity:0;
  visibility:hidden;
  transform:translateY(14px) scale(.96);
  transition:opacity .55s, transform .55s var(--ease), visibility .55s;
}
.mini-body.is-on{ opacity:1; visibility:visible; transform:none; }
.mini-body__orb{
  width:58px; height:58px;
  border-radius:50%;
  position:relative;
  overflow:hidden;
  background:
    radial-gradient(circle at 32% 27%, #fff 0%, var(--accent) 11%, #c6c8ff 28%, var(--accent-2) 46%, #1b2034 69%, #06070c 88%);
  box-shadow:
    inset -14px -18px 30px rgba(0,0,0,.85),
    inset 8px 9px 20px rgba(255,255,255,.16),
    0 0 34px rgba(var(--accent-rgb),.22);
  transition:transform .5s var(--ease), box-shadow .5s;
}
.mini-body__orb::before{
  content:"";
  position:absolute;
  inset:-20%;
  background:conic-gradient(from 0deg, transparent, rgba(255,255,255,.5) 9%, transparent 23%, rgba(var(--accent-2-rgb),.55) 42%, transparent 56%, rgba(var(--accent-rgb),.5) 76%, transparent 90%);
  mix-blend-mode:screen;
  animation:spin 22s linear infinite;
}
.mini-body__orb::after{
  content:"";
  position:absolute;
  inset:0;
  border-radius:50%;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.18);
}
.mini-body__ring{
  position:absolute;
  left:50%; top:29px;
  width:86px; height:26px;
  border:1px solid rgba(var(--accent-rgb),.28);
  border-radius:50%;
  transform:translate(-50%,-50%) rotate(-17deg);
  pointer-events:none;
}
.mini-body__meta{
  display:flex; align-items:center; gap:5px;
  font-family:var(--font-mono);
  font-size:5.8px;
  letter-spacing:.14em;
  color:rgba(255,255,255,.32);
  white-space:nowrap;
}
.mini-body__meta i{
  width:4px; height:4px;
  border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 7px var(--accent);
  opacity:.5;
}
.mini-body__meta b{ font-weight:400; color:rgba(255,255,255,.45); }
.mini-body.is-link .mini-body__meta i{ opacity:1; animation:pulse 2s infinite; }
.mini-body.is-link .mini-body__meta b{ color:var(--accent); }
.mini-body.is-link .mini-body__orb{ box-shadow:inset -14px -18px 30px rgba(0,0,0,.85), inset 8px 9px 20px rgba(255,255,255,.16), 0 0 48px rgba(var(--accent-rgb),.38); }
.mini-body:hover .mini-body__orb{ transform:scale(1.08); }
.mini-body:hover .mini-body__ring{ border-color:rgba(var(--accent-rgb),.6); }

/* handcam tools */
.handcam__tools{ display:flex; align-items:center; gap:5px; }
.handcam__cal{
  height:20px;
  padding:0 6px;
  border:1px solid var(--line);
  border-radius:99px;
  font-family:var(--font-mono);
  font-size:5.5px;
  letter-spacing:.1em;
  color:var(--dim);
  transition:color .3s, border-color .3s;
}
.handcam__cal:hover{ color:var(--accent); border-color:var(--accent); }

/* ═══════════════════════════════════════════════════════════════
   OPTICAL GATE
   ═══════════════════════════════════════════════════════════════ */
.gate{
  position:fixed;
  inset:0;
  z-index:10800;
  display:grid;
  place-items:center;
  padding:clamp(12px,2.4vw,30px);
  opacity:0;
  visibility:hidden;
  pointer-events:none;
  transition:opacity .45s, visibility .45s;
}
.gate.is-open{ opacity:1; visibility:visible; pointer-events:auto; }
.gate__backdrop{
  position:absolute;
  inset:0;
  background:rgba(3,4,8,.72);
  backdrop-filter:blur(20px) saturate(.85);
  -webkit-backdrop-filter:blur(20px) saturate(.85);
}
.gate__panel{
  position:relative;
  width:min(940px, 94vw);
  max-height:90svh;
  overflow:auto;
  padding:clamp(22px,3.2vw,42px);
  border:1px solid rgba(255,255,255,.14);
  border-radius:18px;
  background:
    radial-gradient(ellipse 90% 80% at 80% 0%, rgba(var(--accent-2-rgb),.08), transparent 55%),
    radial-gradient(ellipse 80% 80% at 10% 100%, rgba(var(--accent-rgb),.08), transparent 55%),
    rgba(7,9,14,.96);
  box-shadow:0 60px 140px -40px #000, inset 0 1px 0 rgba(255,255,255,.05);
  transform:translateY(26px) scale(.97);
  transition:transform .65s var(--ease);
}
.gate.is-open .gate__panel{ transform:none; }
.gate__head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding-bottom:16px;
  border-bottom:1px solid var(--line);
  font-family:var(--font-mono);
  font-size:7px;
  letter-spacing:.18em;
  color:var(--dim);
  text-transform:uppercase;
}
.gate__head span{ display:flex; align-items:center; gap:8px; }
.gate__head i{
  width:5px; height:5px; border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 8px var(--accent);
  animation:pulse 2s infinite;
}
.gate__close{
  width:26px; height:26px;
  display:grid; place-items:center;
  border:1px solid var(--line);
  border-radius:50%;
  color:var(--muted);
  font-size:15px;
  line-height:1;
  transition:color .3s, border-color .3s;
}
.gate__close:hover{ color:var(--accent); border-color:var(--accent); }

.gate__intro{
  display:grid;
  grid-template-columns:1.02fr .98fr;
  grid-template-areas:
    "label label"
    "title gestures"
    "lede gestures"
    "privacy privacy"
    "progress progress"
    "status status"
    "actions actions"
    "note note";
  column-gap:clamp(24px,4vw,54px);
  row-gap:14px;
  padding-top:clamp(16px,2.6vw,28px);
}
.gate__intro .mini-label{ grid-area:label; }
.gate__intro h3{
  grid-area:title;
  font-family:var(--font-display);
  font-weight:500;
  font-size:clamp(2.4rem,4.6vw,4rem);
  line-height:.94;
  letter-spacing:-.045em;
}
.gate__intro h3 em{
  font-family:var(--font-serif);
  font-style:italic;
  font-weight:400;
  color:var(--accent);
}
.gate__lede{
  grid-area:lede;
  max-width:390px;
  color:var(--muted);
  font-size:12px;
  line-height:1.7;
}
.gate__gestures{
  grid-area:gestures;
  align-self:end;
  display:grid;
  grid-template-columns:1fr 1fr;
  border-top:1px solid var(--line);
  border-left:1px solid var(--line);
}
.gate__gestures div{
  display:flex;
  flex-direction:column;
  gap:4px;
  padding:14px 14px 16px;
  border-right:1px solid var(--line);
  border-bottom:1px solid var(--line);
  transition:background .3s;
}
.gate__gestures div:hover{ background:rgba(var(--accent-rgb),.035); }
.gate__gestures b{ font-family:var(--font-mono); font-size:6px; letter-spacing:.12em; color:var(--dim); font-weight:400; }
.gate__gestures span{ font-family:var(--font-display); font-size:1.05rem; letter-spacing:.02em; color:var(--ink); }
.gate__gestures em{
  font-family:var(--font-mono); font-style:normal;
  font-size:6px; letter-spacing:.12em; color:var(--muted);
  text-transform:uppercase;
}
.gate__privacy{
  grid-area:privacy;
  display:flex; align-items:center; gap:8px;
  font-family:var(--font-mono);
  font-size:6.5px;
  letter-spacing:.14em;
  color:rgba(255,255,255,.36);
  text-transform:uppercase;
}
.gate__privacy i{
  width:5px; height:5px;
  border-radius:50%;
  border:1px solid var(--accent);
  box-shadow:0 0 8px rgba(var(--accent-rgb),.4);
}
.gate__progress{
  grid-area:progress;
  height:2px;
  background:rgba(255,255,255,.08);
  overflow:hidden;
  margin-top:4px;
}
.gate__progress span{
  display:block;
  width:100%;
  height:100%;
  background:linear-gradient(90deg, var(--accent-2), var(--accent));
  transform:scaleX(0);
  transform-origin:0 50%;
  transition:transform .45s var(--ease);
  box-shadow:0 0 12px rgba(var(--accent-rgb),.65);
}
.gate__status{
  grid-area:status;
  display:flex;
  justify-content:space-between;
  gap:16px;
  font-family:var(--font-mono);
  font-size:6.5px;
  letter-spacing:.15em;
  color:var(--dim);
  text-transform:uppercase;
}
.gate__status b{ font-weight:400; color:var(--accent); }

/* hand-reactive HUD */
.planet-reticle{
  opacity:calc(.52 + var(--hand-open,.55) * .48);
  border-color:rgba(255,255,255,.14);
  transform:translate(-50%,-50%) scale(calc(.93 + var(--hand-open,.55) * .13));
  transition:transform .28s var(--ease), opacity .3s, border-color .4s;
}
.hero.hand-active .planet-reticle{ border-color:rgba(var(--accent-rgb),.30); }
.orbit-arc{
  opacity:calc(.32 + var(--hand-open,.55) * .55);
  transform:translateY(-50%) rotate(-7deg) scale(calc(.96 + var(--hand-open,.55) * .09));
  transition:transform .3s var(--ease), opacity .3s, border-color .4s;
}
.orbit-arc--b{
  opacity:.7;
  transform:translateY(-50%) rotate(-4deg) scale(calc(1 + var(--hand-open,.55) * .08));
}
.mini-body__ring{ opacity:calc(.42 + var(--mini-open,.55) * .58); }
.mini-body__orb{ filter:brightness(calc(.86 + var(--mini-open,.55) * .22)); }
.reactor__halo{ filter:blur(50px) brightness(calc(.82 + var(--hand-open,.55) * .3)); }

/* gesture aura around the hand */
.hand-marker::before{
  content:"";
  position:absolute;
  left:50%; top:50%;
  width:190px; height:190px;
  transform:translate(-50%,-50%);
  border-radius:50%;
  background:radial-gradient(circle, rgba(var(--accent-rgb),.24) 0%, rgba(var(--accent-2-rgb),.10) 38%, transparent 68%);
  filter:blur(12px);
  opacity:calc(.35 + var(--hand-pinch,0) * .45);
  pointer-events:none;
}
.hand-marker span{
  width:34px; height:34px;
  box-shadow:0 0 30px rgba(var(--accent-rgb),.5), inset 0 0 16px rgba(var(--accent-rgb),.16);
}
.hand-marker b{
  font-size:6.5px;
  padding:3px 7px;
  border:1px solid rgba(var(--accent-rgb),.25);
  border-radius:999px;
  background:rgba(5,6,10,.56);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
}


.gate__actions{
  grid-area:actions;
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  margin-top:4px;
}
.gate__note{
  grid-area:note;
  font-family:var(--font-mono);
  font-size:6px;
  letter-spacing:.12em;
  line-height:1.7;
  color:rgba(255,255,255,.26);
}
.btn--quiet{
  border-color:transparent;
  color:var(--dim);
  padding-left:14px;
  padding-right:14px;
}
.btn--quiet:hover{ color:var(--ink); }

/* calibration */
.gate__calibration{
  display:grid;
  grid-template-columns:minmax(0,.88fr) minmax(0,1.12fr);
  gap:clamp(24px,4vw,54px);
  padding-top:clamp(16px,2.6vw,28px);
  align-items:start;
}
.gate__calibration[hidden],
.gate__intro[hidden]{ display:none !important; }
.gate__calib-copy h3{
  margin-top:16px;
  font-family:var(--font-display);
  font-weight:500;
  font-size:clamp(2.2rem,4vw,3.5rem);
  line-height:.96;
  letter-spacing:-.04em;
}
.gate__calib-copy > p{
  margin-top:14px;
  max-width:320px;
  color:var(--muted);
  font-size:12px;
  line-height:1.7;
}
.gate__steps{
  display:flex;
  gap:6px;
  margin-top:26px;
  border-top:1px solid var(--line);
  padding-top:12px;
}
.gate__steps span{
  flex:1;
  font-family:var(--font-mono);
  font-size:6px;
  letter-spacing:.1em;
  color:var(--dim);
  padding-bottom:9px;
  border-bottom:1px solid transparent;
  transition:color .3s, border-color .3s;
}
.gate__steps span b{ font-weight:400; }
.gate__steps span.is-active{ color:var(--accent); border-color:var(--accent); }
.gate__steps span.is-done{ color:rgba(255,255,255,.48); }
.gate__bar{
  height:2px;
  margin-top:12px;
  background:rgba(255,255,255,.08);
  overflow:hidden;
}
.gate__bar span{
  display:block;
  width:100%;
  height:100%;
  background:linear-gradient(90deg, var(--accent), var(--accent-2));
  transform:scaleX(0);
  transform-origin:0 50%;
  transition:transform .15s linear;
}
.gate__calib-copy .gate__actions{ margin-top:26px; }
.gate__video{
  position:relative;
  aspect-ratio:4/3;
  overflow:hidden;
  border:1px solid rgba(255,255,255,.14);
  border-radius:10px;
  background:#03050a;
  box-shadow:0 30px 80px -30px #000, 0 0 50px -28px rgba(var(--accent-rgb),.4);
}
.gate__video video,
.gate__video canvas{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
}
.gate__video video{ transform:scaleX(-1); opacity:.72; filter:saturate(.55) contrast(1.15); }
.gate__video canvas{ z-index:2; }
.gate__video-hint{
  position:absolute;
  left:12px; bottom:10px;
  z-index:3;
  font-family:var(--font-mono);
  font-size:6px;
  letter-spacing:.16em;
  color:rgba(255,255,255,.4);
}
.gate__video-corners i{
  position:absolute;
  width:16px; height:16px;
  border-color:rgba(var(--accent-rgb),.55);
  border-style:solid;
  border-width:0;
  z-index:3;
}
.gate__video-corners i:nth-child(1){ left:10px; top:10px; border-left-width:1px; border-top-width:1px; }
.gate__video-corners i:nth-child(2){ right:10px; top:10px; border-right-width:1px; border-top-width:1px; }
.gate__video-corners i:nth-child(3){ left:10px; bottom:10px; border-left-width:1px; border-bottom-width:1px; }
.gate__video-corners i:nth-child(4){ right:10px; bottom:10px; border-right-width:1px; border-bottom-width:1px; }

/* responsive gate */
@media (max-width: 900px){
  .sound-btn em{ display:none; }
  .sound-btn{ padding:0 8px; }
  .gate__intro{
    grid-template-columns:1fr;
    grid-template-areas:
      "label"
      "title"
      "lede"
      "gestures"
      "privacy"
      "progress"
      "status"
      "actions"
      "note";
    row-gap:12px;
  }
  .gate__gestures{ align-self:auto; margin-top:4px; }
  .gate__calibration{ grid-template-columns:1fr; }
  .gate__video{ order:-1; }
  .gate__calib-copy > p{ max-width:none; }
  .gate__calib-copy h3{ font-size:2.4rem; }
  .mini-body{ display:none; }
  .sound-btn__icon i{ width:2px; }
}
@media (max-width: 620px){
  .gate{ padding:8px; }
  .gate__panel{ width:100%; max-height:94svh; padding:18px 16px 20px; border-radius:14px; }
  .gate__intro h3{ font-size:clamp(2.2rem, 11vw, 3rem); }
  .gate__gestures{ grid-template-columns:1fr 1fr; }
  .gate__gestures div{ padding:11px 10px 12px; }
  .gate__gestures span{ font-size:.95rem; }
  .gate__actions{ flex-direction:column; }
  .gate__actions .btn{ width:100%; }
  .gate__status{ font-size:6px; }
  .gate__note{ font-size:5.5px; }
  .gate__calibration{ gap:18px; }
  .gate__calib-copy .gate__actions{ flex-direction:row; }
  .gate__calib-copy .gate__actions .btn{ width:auto; }
  .handcam__cal{ display:none; }
}