*{box-sizing:border-box;margin:0}
html,body{height:100%;background:#050608;color:#e9edf2;font-family:-apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",Inter,Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased}
body{background:radial-gradient(120% 80% at 50% 35%,#15181e 0%,#0a0b0e 45%,#030304 100%);overflow-x:hidden}
body:after{content:"";position:fixed;inset:0;pointer-events:none;background:radial-gradient(ellipse at center,transparent 50%,rgba(0,0,0,.65) 100%)}
.stage{min-height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px 16px calc(28px + env(safe-area-inset-bottom));gap:30px;position:relative;z-index:1}
.scene{--w:min(92vw,560px);width:var(--w);aspect-ratio:85.6/54;perspective:1400px;font-size:calc(var(--w)/36)}
.card{--rx:0deg;--ry:0deg;--mx:50%;--my:50%;--flip:0deg;position:relative;width:100%;height:100%;transform-style:preserve-3d;transform:rotateX(var(--rx)) rotateY(calc(var(--ry) + var(--flip)));cursor:pointer;outline:none;transition:transform .05s linear}
.card.flipping{transition:transform .8s cubic-bezier(.2,.75,.2,1)}
.face{position:absolute;inset:0;border-radius:4.2%/6.6%;overflow:hidden;backface-visibility:hidden;-webkit-backface-visibility:hidden;
 background:linear-gradient(135deg,#1b1e24 0%,#0e1014 45%,#171a1f 100%);
 box-shadow:0 30px 60px -20px rgba(0,0,0,.9),0 12px 24px -8px rgba(0,0,0,.6),inset 0 0 0 1px rgba(255,255,255,.09),inset 0 1px 0 rgba(255,255,255,.18),inset 0 -1px 0 rgba(0,0,0,.6)}
.back{transform:rotateY(180deg)}
.foil{position:absolute;inset:0;pointer-events:none;opacity:.55;mix-blend-mode:color-dodge;
 background:repeating-linear-gradient(115deg,#ff9fcf 0%,#ffd59a 6%,#a8ffd8 12%,#8fd3ff 18%,#c9a8ff 24%,#ff9fcf 30%);
 background-size:300% 300%;background-position:var(--mx) var(--my);filter:saturate(.75) brightness(.8);
 -webkit-mask:radial-gradient(120% 140% at var(--mx) var(--my),#000 0%,rgba(0,0,0,.35) 55%,rgba(0,0,0,.12) 100%);mask:radial-gradient(120% 140% at var(--mx) var(--my),#000 0%,rgba(0,0,0,.35) 55%,rgba(0,0,0,.12) 100%)}
.grain{position:absolute;inset:0;pointer-events:none;opacity:.22;mix-blend-mode:overlay;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 .5 0 0 0 0 .5 0 0 0 0 .5 0 0 0 1.2 -.1'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}
.glare{position:absolute;inset:0;pointer-events:none;mix-blend-mode:soft-light;background:radial-gradient(60% 80% at var(--mx) var(--my),rgba(255,255,255,.55) 0%,rgba(255,255,255,.08) 40%,transparent 70%)}
.ticks{position:absolute;inset:3.2% 2.4%;pointer-events:none;opacity:.35;
 background:linear-gradient(#9fd8ff,#9fd8ff) 0 0/1.6em 1px no-repeat,linear-gradient(#9fd8ff,#9fd8ff) 0 0/1px 1.6em no-repeat,
 linear-gradient(#9fd8ff,#9fd8ff) 100% 100%/1.6em 1px no-repeat,linear-gradient(#9fd8ff,#9fd8ff) 100% 100%/1px 1.6em no-repeat}
.content{position:absolute;inset:0;padding:7% 6.5%;display:flex;flex-direction:column}
.emb{color:#eef1f5;text-shadow:0 1px 0 rgba(0,0,0,.7),0 -1px 0 rgba(255,255,255,.12)}
.top{display:flex;align-items:center;gap:.7em}
.mono{width:2.9em;height:2.9em;color:#e6ebf2;filter:drop-shadow(0 1px 0 rgba(0,0,0,.8))}
.brand{font-size:.72em;letter-spacing:.32em;color:#aab3bf;font-weight:500}
.portrait{position:absolute;top:8%;right:6.5%;width:24%;aspect-ratio:1;border-radius:50%}
.portrait picture,.portrait img{display:block;width:100%;height:100%;border-radius:50%;object-fit:cover}
.portrait picture{position:absolute;inset:7%;width:86%;height:86%;box-shadow:0 0 0 1px rgba(0,0,0,.6),0 6px 16px rgba(0,0,0,.6)}
.portrait img{filter:contrast(1.04) saturate(.92)}
.ring{position:absolute;inset:0;border-radius:50%;background:conic-gradient(from calc(var(--ry)*6),#e9eef5,#9fd8ff,#c9b2ff,#ffd2a6,#b6ffe0,#e9eef5);opacity:.85;
 -webkit-mask:radial-gradient(circle,transparent 62%,#000 63%,#000 66%,transparent 67%,transparent 69%,#000 70%,#000 71%,transparent 72%);mask:radial-gradient(circle,transparent 62%,#000 63%,#000 66%,transparent 67%,transparent 69%,#000 70%,#000 71%,transparent 72%)}
.portrait:after{content:"";position:absolute;inset:7%;border-radius:50%;pointer-events:none;mix-blend-mode:soft-light;background:linear-gradient(calc(120deg + var(--ry)*4),transparent 30%,rgba(190,230,255,.5) 50%,transparent 70%)}
.id{margin-top:auto;margin-bottom:5%}
h1{font-size:2.35em;font-weight:600;letter-spacing:-.01em;line-height:1.05}
.title{margin-top:.45em;font-size:.86em;color:#b7c0cb;letter-spacing:.02em}
.bottom{display:flex;align-items:flex-end;justify-content:space-between}
.logos{display:flex;gap:.6em;align-items:center}
.chip{display:inline-flex;align-items:center;gap:.45em;height:2.4em;border-radius:.6em;padding:0 .7em}
.chip.light{background:linear-gradient(180deg,#fbfcfd,#e4e8ee);box-shadow:inset 0 1px 0 #fff,0 2px 6px rgba(0,0,0,.5)}
.chip.light img{height:1.45em;width:auto}
.chip.dark{background:rgba(255,255,255,.06);box-shadow:inset 0 0 0 1px rgba(255,255,255,.14);padding-left:.25em}
.chip.dark img{height:1.95em;border-radius:50%}
.chip.dark b{font-size:.95em;font-weight:600;letter-spacing:.04em;color:#e8fff6}
.loc{font-size:.68em;letter-spacing:.28em;color:#8f99a6}
.backc{flex-direction:row;gap:6%;align-items:center}
.qr{display:flex;flex-direction:column;align-items:center;gap:.5em;flex:0 0 38%}
.qrbox{width:100%;aspect-ratio:1;background:#f3f5f8;border-radius:.7em;padding:7%;box-shadow:inset 0 1px 0 #fff,0 4px 12px rgba(0,0,0,.5)}
.qrbox svg{width:100%;height:100%;display:block}
.qr span{font-size:.62em;letter-spacing:.24em;text-transform:uppercase;color:#8f99a6}
.acts{flex:1;display:flex;flex-direction:column;gap:.5em}
.tag{font-size:1.05em;font-weight:500;margin-bottom:.35em;line-height:1.25}
.btn{display:flex;align-items:center;justify-content:center;height:2.55em;border-radius:.65em;font:inherit;font-size:.9em;font-weight:500;color:#e9edf2;text-decoration:none;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);cursor:pointer;-webkit-tap-highlight-color:transparent}
.btn.primary{background:linear-gradient(180deg,#f7f9fb,#dde2e9);color:#0b0d10;border-color:transparent}
.btn:active{transform:scale(.98)}
.below{display:flex;flex-direction:column;align-items:center;gap:14px}
.row{display:flex;gap:10px}
.ghost,.hint{font:inherit;font-size:14px;color:#cfd6df;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:999px;padding:10px 18px;cursor:pointer}
.hint{color:#9fd8ff;border-color:rgba(159,216,255,.35);display:none}
.hint.show{display:block}
.foot{font-size:12px;color:#5d6672;letter-spacing:.06em}
.toast{position:fixed;left:50%;bottom:30px;transform:translate(-50%,20px);opacity:0;background:#e9edf2;color:#0b0d10;padding:10px 16px;border-radius:999px;font-size:14px;transition:.3s;z-index:5}
.toast.on{opacity:1;transform:translate(-50%,0)}
@media (prefers-reduced-motion:reduce){.card.flipping{transition:none}}
.card .back{pointer-events:none}.card.is-flipped .back{pointer-events:auto}.card.is-flipped .front{pointer-events:none}
.pair{display:flex;gap:.5em}.pair .btn{flex:1;min-width:0;white-space:nowrap;font-size:.82em;padding:0 .4em}
.num{font-size:.72em;color:#8f99a6;letter-spacing:.04em;margin:-.3em 0 .25em}
/* ===== v3: alive ===== */
.bg{position:fixed;inset:0;overflow:hidden;pointer-events:none;z-index:0}
.vol{position:absolute;border-radius:50%;filter:blur(60px);opacity:.5;will-change:transform}
.v1{width:80vmax;height:60vmax;left:-25vmax;top:-20vmax;background:radial-gradient(closest-side,rgba(90,140,200,.28),transparent);animation:drift1 22s ease-in-out infinite alternate}
.v2{width:70vmax;height:60vmax;right:-30vmax;bottom:-25vmax;background:radial-gradient(closest-side,rgba(150,110,210,.2),transparent);animation:drift2 26s ease-in-out infinite alternate}
@keyframes drift1{to{transform:translate3d(14vmax,10vmax,0) scale(1.15)}}
@keyframes drift2{to{transform:translate3d(-12vmax,-8vmax,0) scale(1.1)}}
.grid{position:absolute;inset:-40px;opacity:.16;will-change:transform;
 background-image:linear-gradient(rgba(150,200,255,.5) 1px,transparent 1px),linear-gradient(90deg,rgba(150,200,255,.5) 1px,transparent 1px);background-size:44px 44px;
 -webkit-mask:radial-gradient(60% 50% at 50% 45%,#000 0%,transparent 75%);mask:radial-gradient(60% 50% at 50% 45%,#000 0%,transparent 75%)}
.scene{position:relative;z-index:2}
.card{transform:none;transition:none;will-change:transform;--T:calc(var(--w)/110)}
.face{overflow:visible;transform-style:preserve-3d;background:none;box-shadow:none;transform:translateZ(calc(var(--T)/2))}
.back{transform:rotateY(180deg) translateZ(calc(var(--T)/2))}
.face>*,.content>*,.content .top,.content .id,.content .bottom{backface-visibility:hidden;-webkit-backface-visibility:hidden}
.skin{position:absolute;inset:0;border-radius:inherit;overflow:hidden;background:linear-gradient(135deg,#1c1f26 0%,#0d0f13 45%,#171a20 100%);
 box-shadow:inset 0 0 0 1px rgba(255,255,255,.10),inset 0 1px 0 rgba(255,255,255,.22),inset 0 -1px 0 rgba(0,0,0,.6)}
.skin .foil,.skin .grain,.skin .glare{border-radius:inherit}
.gl{position:absolute;inset:0;width:100%;height:100%;display:none;mix-blend-mode:screen;opacity:.9}
.webgl .gl{display:block}.webgl .foil{opacity:.12}
.content{transform-style:preserve-3d}
.content .top{transform:translateZ(calc(var(--w)/70))}
.content .id{transform:translateZ(calc(var(--w)/45))}
.content .bottom{transform:translateZ(calc(var(--w)/60))}
.portrait{transform:translateZ(calc(var(--w)/32))}
.ticks{transform:translateZ(calc(var(--w)/90))}
.backc .qr,.backc .acts{transform:translateZ(calc(var(--w)/50))}
/* metal edge: slices between faces */
.edge{position:absolute;inset:0;border-radius:4.2%/6.6%;background:linear-gradient(90deg,#3a3f47,#a9b1bc 30%,#5d636c 55%,#c6ccd5 80%,#3a3f47);pointer-events:none}
/* soft shadow + aura */
.shadow{position:absolute;left:8%;right:8%;top:30%;bottom:-6%;border-radius:50%;background:rgba(0,0,0,.85);filter:blur(26px);z-index:-1;will-change:transform}
.aura{--h:210;position:absolute;inset:-25% -15%;z-index:-2;border-radius:50%;pointer-events:none;will-change:transform;
 background:radial-gradient(closest-side,hsla(var(--h),90%,70%,.16),hsla(calc(var(--h) + 70),80%,65%,.07) 55%,transparent 75%);filter:blur(10px);animation:breathe 5s ease-in-out infinite}
@keyframes breathe{50%{opacity:.7}}
/* arc reactor */
.portrait .ring{display:none}
.reactor{position:absolute;inset:-3%;width:106%;height:106%;overflow:visible;filter:drop-shadow(0 0 3px rgba(140,210,255,.35))}
.reactor .r1{fill:none;stroke:url(#rg);stroke-width:1.6;stroke-dasharray:302;stroke-dashoffset:0;opacity:.95}
.reactor .r2{fill:none;stroke:rgba(170,215,255,.45);stroke-width:.6;stroke-dasharray:2 3.2}
.reactor .r3{fill:#bfe6ff;opacity:.75;transform-origin:50px 50px;animation:spin 24s linear infinite}
.reactor .r2{transform-origin:50px 50px;animation:spin 40s linear infinite reverse}
@keyframes spin{to{transform:rotate(360deg)}}
.portrait:before{content:"";position:absolute;inset:-6%;border-radius:50%;background:radial-gradient(closest-side,rgba(140,210,255,.0) 80%,rgba(140,210,255,.28) 92%,transparent 100%);animation:breathe 3.6s ease-in-out infinite}
.portrait picture{inset:9%;width:82%;height:82%}
.portrait:after{inset:9%}
/* intro */
.intro .card{--in:0}
.intro .content>*,.intro .ticks{opacity:var(--in)}
.intro .skin{opacity:calc(.25 + var(--in)*.75)}
.intro .reactor .r1{stroke-dashoffset:302;transition:none}
.power .reactor .r1{stroke-dashoffset:0;transition:stroke-dashoffset .9s cubic-bezier(.3,.7,.2,1)}
.power .portrait:before{animation:pulse 1.2s ease-out 1,breathe 3.6s ease-in-out 1.2s infinite}
@keyframes pulse{0%{opacity:0;transform:scale(.9)}35%{opacity:1;transform:scale(1.12)}100%{opacity:.6;transform:scale(1)}}
.intro .shadow,.intro .aura{opacity:var(--in)}
.intro .below{opacity:0}
.below{transition:opacity .6s .1s}
.parts{position:absolute;left:-100px;top:-100px;width:calc(100% + 200px);height:calc(100% + 200px);pointer-events:none;z-index:5}
.skip{position:fixed;top:calc(14px + env(safe-area-inset-top));right:14px;z-index:10;font:inherit;font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:#8f99a6;background:none;border:0;padding:8px;opacity:0;pointer-events:none;transition:.3s}
.skip.show{opacity:1;pointer-events:auto}
h1{font-variant-numeric:tabular-nums}
/* slick motion prompt */
.hint{display:none;align-items:center;gap:10px;padding:11px 18px 11px 14px;color:#dff1ff;background:linear-gradient(180deg,rgba(255,255,255,.08),rgba(255,255,255,.03));border:1px solid rgba(160,215,255,.28);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);box-shadow:0 0 0 1px rgba(0,0,0,.4),0 10px 30px -10px rgba(120,190,255,.35);font-weight:500;letter-spacing:.01em}
.hint.show{display:inline-flex}
.hint small{font-size:11px;color:#8aa3b8;font-weight:400;margin-left:4px}
.hint .dot{width:8px;height:8px;border-radius:50%;background:#9fdcff;box-shadow:0 0 0 0 rgba(159,220,255,.6);animation:ping 1.8s ease-out infinite}
@keyframes ping{70%{box-shadow:0 0 0 9px rgba(159,220,255,0)}100%{box-shadow:0 0 0 0 rgba(159,220,255,0)}}
@media (prefers-reduced-motion:reduce){.vol,.aura,.reactor .r2,.reactor .r3,.portrait:before,.hint .dot{animation:none}}
.intro .edge{opacity:calc(var(--in)*var(--in))}.intro .skin{opacity:var(--in)}
.intro .edge{display:none}.card,.card *{-webkit-user-select:none;user-select:none;-webkit-touch-callout:none}.card img{-webkit-user-drag:none;pointer-events:none}.intro .below{opacity:0}
/* legibility fix: effects never above content, no blend modes in 3D */
.gl{mix-blend-mode:normal!important;opacity:1!important}
.webgl .foil{display:none}
.glare{mix-blend-mode:normal!important;background:radial-gradient(38% 50% at var(--mx) var(--my),rgba(255,255,255,.12),rgba(255,255,255,.03) 45%,transparent 70%)!important}
.grain{opacity:.05!important;mix-blend-mode:normal!important}
.portrait:after{mix-blend-mode:normal!important;opacity:.25}
.content{transform:translateZ(1px);z-index:2}
.skin{z-index:0}
.qrbox{background:#fff!important}
.qrbox svg path{stroke:#000!important}
.chip.light{padding:0 .6em}.chip.light picture{display:flex}.chip.light img{height:1.75em!important;width:auto!important;opacity:1}.chip{transform:translateZ(0)}
.chip.light img{height:1.5em!important}