/* ============ v2 battle arena — sliders (rails + comic conveyor) + clash FX ============ */
.asm{isolation:isolate}
.asm-clash{position:absolute;inset:0;z-index:0;pointer-events:none;opacity:.3;
  background-size:cover;background-position:center;mix-blend-mode:screen;
  -webkit-mask-image:radial-gradient(85% 80% at 50% 45%,#000 55%,transparent 100%);
  mask-image:radial-gradient(85% 80% at 50% 45%,#000 55%,transparent 100%);
  animation:clashPulse 7s ease-in-out infinite}
@keyframes clashPulse{0%,100%{opacity:.24;transform:scale(1)}50%{opacity:.36;transform:scale(1.03)}}
/* dark halo so the assembling product always pops over the clash */
.asm-stage::before{content:'';position:absolute;inset:-16% -22%;z-index:-1;
  background:radial-gradient(ellipse at center,rgba(0,0,0,.72) 30%,rgba(0,0,0,.35) 58%,transparent 75%)}
#clashFx{position:absolute;inset:0;z-index:0;pointer-events:none;mix-blend-mode:screen}

/* ---------- shared interactive tile ---------- */
.tile{position:relative;display:block;width:100%;aspect-ratio:4/5;border-radius:14px;overflow:hidden;flex:none;
  border:1px solid rgba(255,255,255,.14);box-shadow:0 14px 34px rgba(0,0,0,.55);padding:0;background:#000;
  cursor:pointer;transition:transform .35s cubic-bezier(.2,1.4,.3,1),box-shadow .35s,border-color .35s}
.tile img{width:100%;height:100%;object-fit:cover;display:block;pointer-events:none}
.tile::after{content:'';position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(to top,rgba(0,0,0,.55),transparent 45%),
             linear-gradient(rgba(var(--railGlow,var(--bandGlow,var(--glow))),.1),transparent 60%)}
.tile .zoom{position:absolute;left:50%;bottom:.55rem;transform:translate(-50%,8px);white-space:nowrap;
  font-family:var(--num);font-size:.56rem;letter-spacing:.12em;text-transform:uppercase;color:#fff;
  background:rgba(0,0,0,.65);border:1px solid rgba(255,255,255,.25);padding:.3rem .6rem;border-radius:999px;
  opacity:0;transition:.3s;pointer-events:none}
/* hover pop: light up, lift, reveal the CTA */
.tile:hover,.tile:focus-visible{transform:scale(1.13);z-index:5;
  border-color:rgba(var(--railGlow,var(--bandGlow,var(--glow))),.9);
  box-shadow:0 18px 44px rgba(0,0,0,.7),0 0 30px rgba(var(--railGlow,var(--bandGlow,var(--glow))),.55)}
.tile:hover .zoom,.tile:focus-visible .zoom{opacity:1;transform:translate(-50%,0)}
.tile:focus-visible{outline:2px solid #fff;outline-offset:2px}

/* ---------- mode: vertical rails (La3eeb) ---------- */
.rail{position:absolute;top:0;bottom:0;width:min(19vw,290px);z-index:1;
  display:flex;gap:1rem;justify-content:center;overflow:hidden}
.rail.left{left:clamp(.6rem,2.5vw,3rem);perspective:900px}
.rail.right{right:clamp(.6rem,2.5vw,3rem);perspective:900px}
.rail .col{display:flex;flex-direction:column;gap:1rem;width:47%;will-change:transform}
.rail.left .col{transform:rotateY(14deg)}
.rail.right .col{transform:rotateY(-14deg)}
.rail .col-inner{display:flex;flex-direction:column;gap:1rem;animation:railUp var(--dur,26s) linear infinite}
.rail .col.down .col-inner{animation-name:railDown}
.rail .col:hover .col-inner{animation-play-state:paused}
@keyframes railUp{from{transform:translateY(0)}to{transform:translateY(-50%)}}
@keyframes railDown{from{transform:translateY(-50%)}to{transform:translateY(0)}}
.rail::before,.rail::after{content:'';position:absolute;left:0;right:0;height:20%;z-index:6;pointer-events:none}
.rail::before{top:0;background:linear-gradient(var(--bg),transparent)}
.rail::after{bottom:0;background:linear-gradient(transparent,var(--bg))}

/* ---------- mode: comic conveyor (Marvz) ---------- */
.asm.mode-conveyor{min-height:100vh;padding:12rem 1rem 9.8rem;justify-content:center}
.asm.mode-conveyor .asm-stage{width:min(50vw,290px)}
.asm.mode-conveyor .asm-cap{margin-top:1.1rem;min-height:5.6rem}
.asm.mode-conveyor .kicker{display:none}
.asm.mode-conveyor .asm-scroll{margin-top:.9rem}
.band{position:absolute;left:-4%;width:108%;z-index:1;overflow:hidden;padding:1rem 0;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 9%,#000 91%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 9%,#000 91%,transparent)}
.band.top{top:3.5rem;transform:rotate(-3.4deg)}
.band.bottom{bottom:2.4rem;transform:rotate(2.4deg)}
.band-track{display:flex;gap:1.1rem;width:max-content;animation:bandRun 15s linear infinite}
.band-track.rev{animation-name:bandRunRev;animation-duration:12.5s}
@keyframes bandRun{from{transform:translateX(-50%)}to{transform:translateX(0)}}
@keyframes bandRunRev{from{transform:translateX(0)}to{transform:translateX(-50%)}}
.band:hover .band-track{animation-play-state:paused}
.panelwrap{transform:rotate(var(--tilt,0deg));flex:none;width:92px}
/* comic-print framing for conveyor tiles */
.band .tile{border-radius:8px;border:3px solid rgba(255,255,255,.92);
  box-shadow:5px 6px 0 rgba(0,0,0,.55),0 10px 30px rgba(0,0,0,.5)}
.band .tile::after{background:linear-gradient(to top,rgba(0,0,0,.45),transparent 45%),
  radial-gradient(rgba(255,255,255,.28) .5px,transparent 1.1px);background-size:auto,7px 7px}
.band .tile:hover,.band .tile:focus-visible{transform:scale(1.16) rotate(calc(var(--tilt,0deg) * -1));
  border-color:#fff;box-shadow:6px 8px 0 rgba(var(--bandGlow,var(--glow)),.65),0 16px 44px rgba(0,0,0,.65)}

/* faction chips */
.faction{position:absolute;top:6.2rem;z-index:3;font-family:var(--num);font-size:.66rem;letter-spacing:.22em;
  text-transform:uppercase;padding:.5rem 1rem;border-radius:999px;border:1px solid rgba(255,255,255,.25);
  background:rgba(0,0,0,.45);backdrop-filter:blur(6px);animation:rise 1s .4s both;pointer-events:none}
.faction.left{left:clamp(.6rem,3vw,3.4rem)}
.faction.right{right:clamp(.6rem,3vw,3.4rem)}
.faction.on-top{top:2.4rem}
.faction.on-bottom{top:auto;bottom:1.2rem}
.faction .dot{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:.45rem;
  background:rgb(var(--fdot));box-shadow:0 0 10px rgb(var(--fdot));animation:facPulse 1.6s ease-in-out infinite}
@keyframes facPulse{0%,100%{opacity:1}50%{opacity:.4}}

/* lightning seam — one-shot strike synced to each product shatter (asm:shatter) */
.seam{position:absolute;left:50%;top:12%;bottom:16%;width:3px;transform:translateX(-50%);z-index:0;
  background:linear-gradient(180deg,transparent,rgba(255,255,255,.6),rgba(var(--glow),.9),rgba(255,255,255,.6),transparent);
  filter:blur(.4px);opacity:0}
.seam.flash{animation:seamFlash .9s ease-out both}
@keyframes seamFlash{0%{opacity:0}12%{opacity:1}30%{opacity:.2}45%{opacity:.8}100%{opacity:0}}

@media(max-width:1080px){.rail,.band,.faction,.seam,#clashFx{display:none}.asm-clash{animation:none}}
@media (prefers-reduced-motion:reduce){
  .rail .col-inner,.band-track,.asm-clash,.seam,.seam.flash,.faction .dot{animation:none}
}

/* ghost faction lettering behind the arena */
.vsword{position:absolute;top:50%;z-index:0;pointer-events:none;font-family:var(--display);
  font-size:clamp(4.5rem,11vw,10rem);letter-spacing:.04em;color:transparent;opacity:.5;
  animation:ghostFloat 9s ease-in-out infinite}
.vsword.gleft{left:3%;transform:translateY(-58%) rotate(-6deg);
  -webkit-text-stroke:2px rgba(110,150,255,.34);text-shadow:0 0 44px rgba(110,150,255,.12)}
.vsword.gright{right:3%;transform:translateY(-46%) rotate(4deg);
  -webkit-text-stroke:2px rgba(255,60,70,.32);text-shadow:0 0 44px rgba(255,60,70,.12);animation-delay:4.5s}
@keyframes ghostFloat{0%,100%{opacity:.34}50%{opacity:.6}}

/* comic VS emblem on the seam — pops with every shatter */
.vs-emblem{position:absolute;left:50%;top:12.1rem;transform:translateX(-50%) rotate(-7deg);z-index:3;
  font-family:var(--display);font-size:1.5rem;color:#fff;background:#0b0b10;
  border:3px solid #fff;border-radius:50%;width:64px;height:64px;display:grid;place-items:center;
  box-shadow:5px 6px 0 rgba(var(--glow),.55),0 14px 40px rgba(0,0,0,.6);pointer-events:none}
.vs-emblem.bam{animation:vsBam .8s cubic-bezier(.2,1.7,.3,1)}
@keyframes vsBam{0%{transform:translateX(-50%) rotate(-7deg) scale(1)}
  30%{transform:translateX(-50%) rotate(6deg) scale(1.45)}
  60%{transform:translateX(-50%) rotate(-10deg) scale(.94)}
  100%{transform:translateX(-50%) rotate(-7deg) scale(1)}}

/* seamless stage blend: once assembled, edges melt into the arena */
.asm-plate.set{-webkit-mask-image:radial-gradient(120% 120% at 50% 48%,#000 55%,transparent 94%);
  mask-image:radial-gradient(120% 120% at 50% 48%,#000 55%,transparent 94%)}
.asm-stage::after{content:'';position:absolute;inset:-2px;pointer-events:none;z-index:2;opacity:0;
  transition:opacity 1.1s ease;border-radius:8px;
  box-shadow:inset 0 0 52px 30px rgba(8,4,14,.8)}
.asm-stage:has(.asm-plate.set)::after{opacity:1}
@media(max-width:1080px){.vsword,.vs-emblem{display:none}.asm.mode-conveyor{min-height:0;padding:5.5rem 1rem 2rem}}
@media (prefers-reduced-motion:reduce){.vsword,.vs-emblem.bam{animation:none}}