*{margin:0;padding:0;box-sizing:border-box}
:root{
  --sky-top:#030318;--sky-mid:#08082a;--sky-bot:#0c1038;--ground:#060612;
  --bld:#070718;--bld-a:#10102a;--bld-b:#1a1a3e;--bld-glass:rgba(0,240,255,.03);
  --win:#ffd700;--win-off:#0c0c1e;
  --np:#00f0ff;--ns:#ff00ff;--nt:#ffd700;--ng:#00ff88;--nr:#ff4466;
  --txt:#fff;--txt-s:#88a;
  --card:rgba(6,6,24,.8);
  --star:1;--ref:.3;--gl:rgba(0,240,255,.2);
  --moon:#eeeedd;--cloud:rgba(255,255,255,.03);
  --aurora1:rgba(0,240,255,.05);--aurora2:rgba(255,0,255,.035);--aurora3:rgba(0,255,136,.04);
  --horizon:rgba(0,240,255,.12);--horizon2:rgba(255,0,255,.06)
}
[data-theme="light"]{
  --sky-top:#2e78c2;--sky-mid:#4a98dd;--sky-bot:#7ec8f0;--ground:#1a5020;
  --bld:#222240;--bld-a:#303058;--bld-b:#404070;--bld-glass:rgba(255,255,255,.06);
  --win:#7ec8f0;--win-off:#282848;
  --np:#ff6b35;--ns:#e91e63;--nt:#ff9800;--ng:#43a047;--nr:#d32f2f;
  --txt:#0a0a1e;--txt-s:#3a3a5e;
  --card:rgba(255,255,255,.85);
  --star:0;--ref:.06;--gl:rgba(255,107,53,.15);
  --moon:#FFD700;--cloud:rgba(255,255,255,.7);
  --aurora1:transparent;--aurora2:transparent;--aurora3:transparent;
  --horizon:rgba(255,180,50,.1);--horizon2:transparent
}
body{font-family:system-ui,-apple-system,Segoe UI,sans-serif;overflow-x:hidden;min-height:100vh}
.scene{position:relative;width:100%;min-height:100vh;overflow:hidden;background:linear-gradient(180deg,var(--sky-top) 0%,var(--sky-mid) 25%,var(--sky-bot) 55%,var(--ground) 100%);transition:background .7s;contain:layout style}

.aurora{position:absolute;top:0;left:0;width:100%;height:50%;z-index:1;pointer-events:none;overflow:hidden;opacity:var(--star);transition:opacity .8s}
.aurora-band{position:absolute;width:160%;left:-30%;border-radius:50%;filter:blur(50px);animation:auroraShift 14s ease-in-out infinite alternate;will-change:transform}
.aurora-band:nth-child(1){top:4%;height:90px;background:var(--aurora1);animation-duration:11s}
.aurora-band:nth-child(2){top:15%;height:70px;background:var(--aurora2);animation-duration:15s;animation-delay:-4s}
.aurora-band:nth-child(3){top:8%;height:55px;background:var(--aurora3);animation-duration:18s;animation-delay:-8s}
@keyframes auroraShift{0%{transform:translateX(-8%) scaleY(1) rotate(-.5deg)}50%{transform:translateX(6%) scaleY(1.5) rotate(.3deg)}100%{transform:translateX(-4%) scaleY(.7) rotate(-.2deg)}}

.horizon-glow{position:absolute;bottom:28%;left:0;width:100%;height:140px;background:radial-gradient(ellipse 90% 100% at 50% 100%,var(--horizon),var(--horizon2) 50%,transparent);z-index:2;pointer-events:none;transition:background .7s;animation:horizonPulse 8s ease-in-out infinite}
@keyframes horizonPulse{0%,100%{opacity:.8}50%{opacity:1}}

.stars{position:absolute;top:0;left:0;width:100%;height:55%;opacity:var(--star);transition:opacity .6s;will-change:opacity;contain:strict}
.star{position:absolute;background:#fff;border-radius:50%;animation:tw var(--d) ease-in-out infinite}
@keyframes tw{0%,100%{opacity:.15;transform:scale(1)}50%{opacity:1;transform:scale(1.6)}}

.const-line{position:absolute;background:rgba(255,255,255,.06);transform-origin:left center;opacity:var(--star);transition:opacity .6s;z-index:1}

.cel{position:absolute;top:6%;right:13%;width:74px;height:74px;border-radius:50%;background:var(--moon);transition:all .7s;z-index:3;will-change:transform}
[data-theme="dark"] .cel{box-shadow:0 0 50px rgba(240,240,220,.15),0 0 100px rgba(240,240,220,.06)}
[data-theme="dark"] .cel::before{content:'';position:absolute;top:12px;left:18px;width:10px;height:10px;border-radius:50%;background:rgba(0,0,0,.06)}
[data-theme="dark"] .cel::after{content:'';position:absolute;top:-5px;left:17px;width:56px;height:56px;border-radius:50%;background:var(--sky-top);transition:background .6s}
[data-theme="light"] .cel{box-shadow:0 0 60px rgba(255,215,0,.4),0 0 120px rgba(255,215,0,.12),0 0 200px rgba(255,215,0,.06)}

.cloud{position:absolute;background:var(--cloud);border-radius:50px;transition:background .6s;animation:fc linear infinite;will-change:transform;contain:layout style}
.cloud::before,.cloud::after{content:'';position:absolute;background:inherit;border-radius:50%}
.cloud::before{width:55%;height:165%;top:-70%;left:16%}
.cloud::after{width:42%;height:135%;top:-50%;left:46%}
@keyframes fc{0%{transform:translateX(-240px)}100%{transform:translateX(calc(100vw + 240px))}}

.logo-wrap{position:fixed;top:18px;left:20px;z-index:1001;display:flex;align-items:center;gap:10px;text-decoration:none;transition:transform .3s}
.logo-wrap:hover{transform:scale(1.04)}
.logo-mark{width:42px;height:42px;position:relative;filter:drop-shadow(0 0 8px var(--np));transition:filter .6s}
.logo-mark svg{width:100%;height:100%;display:block}
.logo-mark:hover{filter:drop-shadow(0 0 18px var(--np)) drop-shadow(0 0 35px var(--np))}
.logo-text{display:flex;flex-direction:column;line-height:1}
.logo-name{font-size:15px;font-weight:900;color:var(--txt);letter-spacing:.18em;text-transform:uppercase;transition:color .6s}
.logo-sub{font-size:8px;font-weight:400;color:var(--np);letter-spacing:.35em;text-transform:uppercase;transition:color .6s;margin-top:2px}
.logo-pulse{position:absolute;top:50%;left:50%;width:100%;height:100%;border:1px solid var(--np);border-radius:8px;opacity:0;transform:translate(-50%,-50%) scale(1);animation:lp 3.5s ease-out infinite;pointer-events:none}
@keyframes lp{0%{transform:translate(-50%,-50%) scale(1);opacity:.4}100%{transform:translate(-50%,-50%) scale(2.4);opacity:0}}

.tog{position:fixed;top:18px;right:18px;z-index:1000;background:var(--card);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1.5px solid var(--np);border-radius:50px;padding:7px 15px;cursor:pointer;display:flex;align-items:center;gap:7px;color:var(--txt);font-weight:700;font-size:13px;transition:all .3s;line-height:1}
.tog:hover{transform:scale(1.06);box-shadow:0 0 24px var(--np)}
.tog svg{width:18px;height:18px;transition:transform .5s;flex-shrink:0}
.tog:hover svg{transform:rotate(180deg)}
.tog svg .sun,.tog svg .moon{transition:opacity .3s}
[data-theme="dark"] .tog svg .sun{opacity:0}[data-theme="dark"] .tog svg .moon{opacity:1}
[data-theme="light"] .tog svg .sun{opacity:1}[data-theme="light"] .tog svg .moon{opacity:0}

.city{position:absolute;bottom:0;left:0;width:100%;height:68%;display:flex;align-items:flex-end;justify-content:center;z-index:10;contain:layout}
.b{position:relative;background:var(--bld);border-left:1px solid var(--bld-a);border-right:1px solid var(--bld-a);transition:background .6s;flex-shrink:0;contain:layout style;will-change:height,opacity;overflow:visible}
.b::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--np),var(--ns))}
.b.tall::after{content:'';position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(180deg,var(--bld-glass),transparent 30%);pointer-events:none}
.b.setback{clip-path:polygon(10% 0,90% 0,90% 15%,100% 15%,100% 100%,0 100%,0 15%,10% 15%)}
.b.setback::before{top:0;left:10%;right:10%;height:2px}
.ws{display:grid;gap:2px;padding:5px 3px;height:100%;align-content:start}
.w{background:var(--win-off);border-radius:1px;min-height:5px;transition:background .3s}
.w.l{background:var(--win);box-shadow:0 0 4px var(--win)}
.w.lb{background:var(--np);box-shadow:0 0 4px var(--np)}
.w.lp{background:var(--ns);box-shadow:0 0 4px var(--ns)}
.w.lg{background:var(--ng);box-shadow:0 0 4px var(--ng)}
.w.lr{background:var(--nr);box-shadow:0 0 4px var(--nr)}
.ant{position:absolute;left:50%;transform:translateX(-50%);width:2px;background:linear-gradient(to top,var(--bld-a),var(--np))}
.ant::after{content:'';position:absolute;top:-3px;left:-2px;width:5px;height:5px;border-radius:50%;background:var(--np);box-shadow:0 0 12px var(--np),0 0 24px var(--np);animation:bl 1.5s ease-in-out infinite}
@keyframes bl{0%,100%{opacity:1}50%{opacity:.1}}
.sp{position:absolute;left:50%;transform:translateX(-50%);border-left:7px solid transparent;border-right:7px solid transparent;border-bottom:38px solid var(--bld);top:-38px}
.sp::after{content:'';position:absolute;top:-15px;left:-1px;width:2px;height:20px;background:var(--ns);box-shadow:0 0 10px var(--ns)}
.dome{position:absolute;left:50%;transform:translateX(-50%);width:70%;height:14px;border-radius:50% 50% 0 0;background:var(--bld);border-top:1px solid var(--np);top:-14px}
.dome::after{content:'';position:absolute;top:-6px;left:50%;transform:translateX(-50%);width:3px;height:8px;background:var(--ng);box-shadow:0 0 6px var(--ng);border-radius:2px}
.signal{position:absolute;left:50%;transform:translateX(-50%)}
.signal-wave{position:absolute;border:1px solid var(--np);border-radius:50%;opacity:0;animation:wave 3s ease-out infinite}
@keyframes wave{0%{width:4px;height:4px;top:-2px;left:-2px;opacity:.6}100%{width:40px;height:40px;top:-20px;left:-20px;opacity:0}}

.streak{position:absolute;height:1px;border-radius:1px;z-index:11;will-change:transform;animation:streakMove linear infinite}
.streak.left{background:linear-gradient(90deg,transparent,var(--nr),var(--nr),transparent)}
.streak.right{background:linear-gradient(90deg,transparent,#ffffcc,#ffffcc,transparent);animation-direction:reverse}
@keyframes streakMove{0%{transform:translateX(-120px)}100%{transform:translateX(calc(100vw + 120px))}}

.car{position:absolute;z-index:16;animation:carMove linear infinite;will-change:transform}
.car-body{height:3px;border-radius:2px;position:relative}
.car-body::before,.car-body::after{content:'';position:absolute;width:3px;height:3px;border-radius:50%;top:-1px}
.car.going-right .car-body{background:rgba(100,100,120,.6)}
.car.going-right .car-body::before{left:-1px;background:var(--win);box-shadow:0 0 6px var(--win)}
.car.going-right .car-body::after{right:-1px;background:var(--nr);box-shadow:0 0 4px var(--nr)}
.car.going-left .car-body{background:rgba(100,100,120,.6)}
.car.going-left .car-body::before{right:-1px;background:var(--win);box-shadow:0 0 6px var(--win)}
.car.going-left .car-body::after{left:-1px;background:var(--nr);box-shadow:0 0 4px var(--nr)}
@keyframes carMove{0%{transform:translateX(-30px)}100%{transform:translateX(calc(100vw + 30px))}}
.car.going-left{animation-direction:reverse}

.gnd{position:absolute;bottom:0;left:0;width:100%;height:8%;background:var(--ground);z-index:15;transition:background .6s}
.gnd::before{content:'';position:absolute;top:0;left:0;width:100%;height:2px;background:var(--gl);box-shadow:0 0 20px var(--gl),0 0 50px var(--gl)}
.ref{position:absolute;bottom:0;left:0;width:100%;height:10%;background:linear-gradient(to bottom,rgba(0,240,255,var(--ref)),transparent);z-index:14;transition:all .6s}
.gl{position:absolute;bottom:0;left:0;width:100%;height:8%;z-index:15;overflow:hidden;perspective:200px}
.gli{position:absolute;bottom:0;left:0;width:100%;height:100%;background:repeating-linear-gradient(90deg,transparent,transparent 50px,var(--gl) 50px,var(--gl) 52px);transform:rotateX(60deg);transform-origin:bottom;opacity:.2}

.scanlines{position:absolute;top:0;left:0;width:100%;height:100%;background:repeating-linear-gradient(0deg,transparent,transparent 3px,rgba(0,0,0,.02) 3px,rgba(0,0,0,.02) 4px);z-index:50;pointer-events:none;opacity:.5}
.vignette{position:absolute;top:0;left:0;width:100%;height:100%;background:radial-gradient(ellipse at center,transparent 50%,rgba(0,0,0,.5) 100%);z-index:49;pointer-events:none}
.noise{position:absolute;top:0;left:0;width:100%;height:100%;z-index:48;pointer-events:none;opacity:.015;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");background-size:128px 128px}

.ct{position:absolute;top:7%;left:50%;transform:translateX(-50%);z-index:100;text-align:center;width:92%;max-width:640px}

.h1-wrap{position:relative;display:inline-block;margin-bottom:8px;padding:0 20px}
.h1{font-size:clamp(2.8rem,10vw,5.8rem);font-weight:900;color:var(--txt);text-transform:uppercase;letter-spacing:.1em;line-height:1.05;transition:color .6s;position:relative;z-index:2}
.h1 .line{display:block;overflow:hidden}
.h1 .line span{display:inline-block;animation:slideUp .8s cubic-bezier(.16,1,.3,1) both}
.h1 .line:nth-child(2) span{animation-delay:.15s;font-size:.82em;letter-spacing:.22em}
@keyframes slideUp{0%{transform:translateY(110%);opacity:0}100%{transform:translateY(0);opacity:1}}

.h1::before,.h1::after{content:attr(data-text);position:absolute;top:0;left:0;width:100%;height:100%;z-index:-1}
.h1::before{color:var(--np);clip-path:inset(0 0 80% 0);animation:glitch1 5s linear infinite}
.h1::after{color:var(--ns);clip-path:inset(80% 0 0 0);animation:glitch2 5s linear infinite}
@keyframes glitch1{0%,92%,100%{transform:translate(0)}93%{transform:translate(-3px,-1px)}95%{transform:translate(2px,1px)}97%{transform:translate(-1px,2px)}}
@keyframes glitch2{0%,90%,100%{transform:translate(0)}91%{transform:translate(3px,1px)}93%{transform:translate(-2px,-1px)}96%{transform:translate(1px,-2px)}}

.h1-glow{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:130%;height:160%;background:radial-gradient(ellipse,var(--np) 0%,transparent 55%);opacity:.05;z-index:1;animation:glowPulse 4s ease-in-out infinite;pointer-events:none;filter:blur(25px)}
@keyframes glowPulse{0%,100%{opacity:.04;transform:translate(-50%,-50%) scale(1)}50%{opacity:.09;transform:translate(-50%,-50%) scale(1.15)}}

@keyframes tg{0%,100%{text-shadow:0 0 20px var(--np),0 0 40px var(--np),0 0 80px var(--np),0 2px 30px rgba(0,0,0,.5)}50%{text-shadow:0 0 10px var(--np),0 0 20px var(--np),0 0 40px var(--np),0 2px 30px rgba(0,0,0,.5)}}

.decor-line{position:absolute;top:50%;height:1px;width:clamp(25px,7vw,70px);opacity:.45}
.decor-line.left{right:calc(100% + 10px);transform:translateY(-50%);background:linear-gradient(90deg,transparent,var(--np))}
.decor-line.right{left:calc(100% + 10px);transform:translateY(-50%);background:linear-gradient(90deg,var(--np),transparent)}
.decor-line::before{content:'';position:absolute;top:-2.5px;width:6px;height:6px;border:1px solid var(--np);border-radius:50%;box-shadow:0 0 6px var(--np)}
.decor-line.left::before{right:-3px}
.decor-line.right::before{left:-3px}
.decor-line::after{content:'';position:absolute;top:-1px;width:3px;height:3px;border-radius:50%;background:var(--np);box-shadow:0 0 4px var(--np)}
.decor-line.left::after{left:0}
.decor-line.right::after{right:0}

.tag{font-size:clamp(.78rem,2.4vw,1.05rem);color:var(--txt-s);letter-spacing:.32em;margin-bottom:16px;font-weight:300;transition:color .6s;text-transform:uppercase;animation:fadeIn 1s .5s both}
@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}100%{opacity:1;transform:translateY(0)}}

.divider{display:flex;align-items:center;justify-content:center;gap:8px;margin:14px auto;width:120px;animation:fadeIn 1s .7s both}
.divider-line{flex:1;height:1px;background:linear-gradient(90deg,transparent,var(--np))}
.divider-line:last-child{background:linear-gradient(90deg,var(--np),transparent)}
.divider-dot{width:4px;height:4px;border-radius:50%;background:var(--np);box-shadow:0 0 6px var(--np);animation:dotBlink 2s ease-in-out infinite}
@keyframes dotBlink{0%,100%{opacity:1}50%{opacity:.3}}

.pbar{width:clamp(170px,48vw,300px);height:3px;background:var(--card);border-radius:10px;margin:12px auto;overflow:hidden;border:1px solid rgba(0,240,255,.1);animation:fadeIn 1s .9s both}
.pfill{height:100%;width:68%;background:linear-gradient(90deg,var(--np),var(--ns),var(--nt));border-radius:10px;animation:pp 2.5s ease-in-out infinite;background-size:200% 100%;position:relative}
.pfill::after{content:'';position:absolute;right:0;top:-3px;width:7px;height:7px;border-radius:50%;background:var(--nt);box-shadow:0 0 8px var(--nt),0 0 16px var(--nt);animation:dotPulse 1s ease-in-out infinite}
@keyframes dotPulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.5)}}
@keyframes pp{0%,100%{background-position:0% 0%}50%{background-position:100% 0%}}
.ptxt{font-size:.6rem;color:var(--np);margin-top:5px;letter-spacing:.24em;font-weight:700;transition:color .6s;animation:fadeIn 1s 1.1s both}

.home-btn{display:inline-flex;align-items:center;gap:9px;margin-top:24px;padding:13px 36px;border:1.5px solid var(--np);border-radius:50px;background:var(--card);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);color:var(--txt);font-size:clamp(.8rem,2vw,.92rem);font-weight:700;text-decoration:none;letter-spacing:.14em;text-transform:uppercase;transition:all .35s;cursor:pointer;position:relative;overflow:hidden;animation:fadeIn 1s 1.3s both}
.home-btn::before{content:'';position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(0,240,255,.12),transparent);transition:left .6s}
.home-btn:hover::before{left:100%}
.home-btn::after{content:'';position:absolute;inset:0;border-radius:50px;box-shadow:inset 0 0 20px rgba(0,240,255,.08);pointer-events:none}
.home-btn:hover{background:var(--np);color:#000;box-shadow:0 0 30px var(--np),0 0 60px rgba(0,240,255,.2);transform:translateY(-3px)}
.home-btn:active{transform:translateY(0)}
.home-btn svg{width:16px;height:16px;flex-shrink:0;transition:transform .3s}
.home-btn:hover svg{transform:translateX(-4px)}

.pt{position:absolute;background:var(--np);border-radius:50%;opacity:0;animation:fp 7s ease-in-out infinite;z-index:5;will-change:transform,opacity}
@keyframes fp{0%{opacity:0;transform:translateY(0) translateX(0)}12%{opacity:.5}88%{opacity:.3}100%{opacity:0;transform:translateY(-220px) translateX(60px)}}
.orb{position:absolute;border-radius:50%;filter:blur(30px);opacity:0;animation:orbFloat 10s ease-in-out infinite;z-index:4;will-change:transform;pointer-events:none}
@keyframes orbFloat{0%{opacity:0;transform:translateY(0) scale(.8)}25%{opacity:.15}75%{opacity:.1}100%{opacity:0;transform:translateY(-250px) scale(1.2)}}

.ss{position:absolute;width:2px;height:2px;background:#fff;border-radius:50%;opacity:var(--star);will-change:transform}
.ss::after{content:'';position:absolute;top:0;left:0;width:80px;height:1px;background:linear-gradient(90deg,rgba(255,255,255,.8),transparent)}
@keyframes sh{0%{transform:translate(0,0);opacity:1}100%{transform:translate(300px,300px);opacity:0}}

@keyframes br{0%{height:0;opacity:0}100%{opacity:1}}

@media(max-width:768px){
  .ct{top:9%}
  .city{height:55%}
  .cel{width:46px;height:46px;top:5%;right:10%}
  .tog{top:12px;right:12px;padding:5px 10px;font-size:11px}
  .tog svg{width:15px;height:15px}
  .logo-wrap{top:12px;left:14px;gap:7px}
  .logo-mark{width:34px;height:34px}
  .logo-name{font-size:12px}
  .logo-sub{font-size:6.5px}
  .decor-line{display:none}
  .horizon-glow{height:80px}
  .scanlines{opacity:.2}
  .noise{opacity:.01}
}
@media(max-width:480px){
  .ct{top:11%}
  .logo-text{display:none}
  .logo-wrap{top:14px;left:14px}
  .logo-mark{width:32px;height:32px}
  .h1{letter-spacing:.06em}
  .h1 .line:nth-child(2) span{letter-spacing:.14em}
}
@media(min-width:1400px){
  .ct{top:5%}
  .city{height:72%}
}