:root{--bg:#fff;--soft:#f3f6fb;--line:#e6eaf2;--ink:#0f1220;--mute:#667085;--lime:#d6ff4a;--blue:#2f6bff;color-scheme:light;box-sizing:border-box;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
*,*:before,*:after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:70px}
body{margin:0;background:var(--bg);color:var(--ink);font-family:'Plus Jakarta Sans',system-ui,sans-serif;line-height:1.5;-webkit-tap-highlight-color:transparent}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--blue);outline-offset:2px}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 20px;border-radius:999px;background:var(--blue);color:#fff;font-weight:700;font-size:14px;border:0;cursor:pointer}
.btn.lime{background:var(--lime);color:var(--ink)}
.btn.soft{background:var(--soft);color:var(--ink)}
.mbar,.tabs,.stories,.prof{display:none}

/* desktop nav */
nav{position:sticky;top:env(safe-area-inset-top,0px);z-index:10;display:flex;justify-content:space-between;align-items:center;max-width:1120px;margin:12px auto 0;padding:8px 10px 8px 22px;background:rgba(255,255,255,.85);backdrop-filter:blur(12px);border:1px solid var(--line);border-radius:999px}
nav b{font-weight:800;font-size:18px}
nav .links{display:flex;gap:22px;align-items:center;font-size:14px;font-weight:500}

/* hero with 3D deck */
.hero{max-width:1120px;margin:0 auto;padding:40px 20px 20px;display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:20px;background:radial-gradient(50% 70% at 82% 30%,#e3edff,transparent 70%)}
.hero h1{font-size:clamp(38px,5.4vw,66px);line-height:1.04;letter-spacing:-.035em;margin:0 0 16px;font-weight:800}
.hero p{max-width:440px;color:var(--mute);margin:0 0 26px}
.hero .row{display:flex;gap:10px;flex-wrap:wrap}
.stage{perspective:1100px;height:480px;display:grid;place-items:center}
.deck{position:relative;width:360px;height:430px;transform-style:preserve-3d;transform:rotateX(var(--rx,6deg)) rotateY(var(--ry,-14deg));transition:transform .18s ease-out}
.c{position:absolute;width:210px;height:270px;border-radius:24px;padding:18px;display:flex;flex-direction:column;justify-content:space-between;font-weight:800;box-shadow:0 26px 50px rgba(40,70,150,.16);animation:bob 5s ease-in-out infinite}
.c small{font-size:12px;font-weight:700;opacity:.8}
.c span{font-size:30px;line-height:1;letter-spacing:-.03em}
.c1{left:0;top:60px;background:linear-gradient(150deg,var(--blue),#8fc0ff);color:#fff}
.c2{left:70px;top:10px;transform:translateZ(70px);background:var(--lime);animation-delay:-1.5s}
.c3{left:140px;top:110px;transform:translateZ(140px);background:#fff;border:1px solid var(--line);animation-delay:-3s}
.c4{left:20px;top:300px;width:150px;height:90px;border-radius:999px;transform:translateZ(190px);background:#fff;flex-direction:row;align-items:center;justify-content:flex-start;gap:12px;padding:12px;animation-delay:-2s}
.c4 i{width:46px;height:46px;border-radius:50%;background:var(--lime);display:grid;place-items:center;font-style:normal}
@keyframes bob{50%{translate:0 -10px}}

/* sections */
section{padding:72px 0 0}
h2{font-size:clamp(28px,4.2vw,44px);letter-spacing:-.03em;line-height:1.1;margin:0 0 10px;font-weight:800}
.sub{color:var(--mute);max-width:520px;margin:0 0 30px}
.sets,.vids{display:grid;grid-template-columns:repeat(auto-fill,minmax(310px,1fr));gap:22px}

/* post (Instagram style) */
.post{background:#fff;border:1px solid var(--line);border-radius:24px;padding:14px;scroll-margin-top:80px}
.post header{display:flex;align-items:center;gap:10px;padding:2px 2px 12px}
.av{width:36px;height:36px;border-radius:50%;background:var(--lime);display:grid;place-items:center;font-weight:800;font-size:14px;flex:none}
.post header strong{font-size:14px;display:block;line-height:1.2}
.post header small{color:var(--mute);font-size:12px}
.car{position:relative}
.track{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;border-radius:16px;scrollbar-width:none;overscroll-behavior-x:contain}
.track::-webkit-scrollbar{display:none}
.slide{flex:0 0 100%;scroll-snap-align:center;aspect-ratio:4/5;position:relative;display:flex;flex-direction:column;justify-content:space-between;padding:22px;color:#fff;font-weight:800}
.slide img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.slide .n{font-size:64px;line-height:1;letter-spacing:-.04em}
.slide .t{font-size:18px;opacity:.9}
.cnt{position:absolute;top:10px;right:10px;background:rgba(15,18,32,.6);color:#fff;font-size:12px;padding:3px 10px;border-radius:999px}
.arr{position:absolute;top:50%;transform:translateY(-50%);width:34px;height:34px;border-radius:50%;border:0;background:rgba(255,255,255,.92);box-shadow:0 2px 8px rgba(0,0,0,.15);font-size:18px;cursor:pointer}
.arr.l{left:8px}.arr.r{right:8px}
.pop{position:absolute;inset:0;display:grid;place-items:center;pointer-events:none;opacity:0;transform:scale(.4);color:#fff}
.pop svg{width:96px;height:96px;fill:#ff3b5c;stroke:#ff3b5c;filter:drop-shadow(0 4px 12px rgba(0,0,0,.3))}
.pop.go{animation:pop .7s ease-out}
@keyframes pop{20%{opacity:1;transform:scale(1.1)}60%{opacity:1;transform:scale(1)}100%{opacity:0;transform:scale(1.2)}}
.act{display:flex;align-items:center;gap:14px;padding:12px 2px 4px}
.act button{background:none;border:0;padding:2px;cursor:pointer;display:grid}
.act svg{width:25px;height:25px;fill:none;stroke:currentColor;stroke-width:2;stroke-linejoin:round;stroke-linecap:round}
.act .bm{margin-left:auto}
.act .liked svg{fill:#ff3b5c;stroke:#ff3b5c}
.act .on svg{fill:currentColor}
.dots{display:flex;justify-content:center;gap:5px;padding:6px 0}
.dots i{width:6px;height:6px;border-radius:50%;background:var(--line);transition:.2s}
.dots i.on{background:var(--blue);width:16px;border-radius:4px}
.cap{margin:2px 2px 4px;font-size:14px}
.cap small{color:var(--mute)}

/* videos */
.vid{background:#fff;border:1px solid var(--line);border-radius:24px;padding:12px;transition:transform .18s ease-out}
.vbox{display:grid;place-items:center;aspect-ratio:16/9;border-radius:16px;overflow:hidden;background:linear-gradient(135deg,#2f6bff,#8fc0ff);position:relative}
.vbox video{width:100%;height:100%;object-fit:cover}
.play{width:58px;height:58px;border-radius:50%;background:var(--lime);display:grid;place-items:center}
.play svg{width:22px;height:22px;fill:var(--ink)}
.vid h3{font-size:16px;margin:12px 6px 2px}
.vid p{margin:0 6px 6px;color:var(--mute);font-size:13px}

/* bento */
.bento{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.bento div{border-radius:24px;padding:22px;background:var(--soft);min-height:150px;display:flex;flex-direction:column;justify-content:space-between}
.bento .big{grid-column:span 2;grid-row:span 2;background:linear-gradient(160deg,var(--blue),#8fc0ff);color:#fff;font-size:20px;font-weight:700}
.bento .lime{background:var(--lime)}
.bento .line{background:#fff;border:1px solid var(--line)}
.bento b{font-size:36px;letter-spacing:-.03em;line-height:1}
.cta{margin:72px 12px 12px;border-radius:32px;background:linear-gradient(160deg,#e3edff,#f4f9ff);text-align:center;padding:68px 20px}
.cta h2{max-width:620px;margin:0 auto 22px}
footer{text-align:center;color:var(--mute);font-size:13px;padding:18px 0 28px}
.toast{position:fixed;left:50%;bottom:90px;transform:translateX(-50%);background:var(--ink);color:#fff;padding:8px 16px;border-radius:999px;font-size:13px;opacity:0;pointer-events:none;transition:.2s;z-index:50}
.toast.on{opacity:1}

/* mobile: Instagram app */
@media(max-width:720px){
  .d{display:none}
  .mbar{display:flex;position:sticky;top:env(safe-area-inset-top,0px);z-index:10;background:#fff;justify-content:space-between;align-items:center;padding:12px 16px;border-bottom:1px solid var(--line);font-size:18px}
  .prof{display:block;padding:16px 16px 4px}
  .pr{display:flex;align-items:center;gap:22px}
  .ring{padding:3px;border-radius:50%;background:conic-gradient(var(--blue),var(--lime),var(--blue));flex:none}
  .pav{width:78px;height:78px;border-radius:50%;background:#fff;border:3px solid #fff;display:grid;place-items:center;font-size:30px;font-weight:800;background:var(--soft)}
  .st{display:flex;flex:1;justify-content:space-around;text-align:center;font-size:13px}
  .st b{display:block;font-size:18px}
  .bio{margin:12px 0;font-size:14px}
  .pbtn{display:flex;gap:8px}.pbtn .btn{flex:1;padding:9px}
  .stories{display:flex;gap:14px;overflow-x:auto;padding:14px 16px;scrollbar-width:none}
  .stories::-webkit-scrollbar{display:none}
  .stories a{flex:none;width:68px;text-align:center;font-size:11px}
  .stories .ring{display:block;margin:0 auto 4px}
  .stories .pav{width:58px;height:58px;font-size:20px}
  .stories span{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .wrap{padding:0}
  section{padding:20px 0 0}
  h2,.sub{padding:0 16px}
  h2{font-size:22px}.sub{margin-bottom:12px;font-size:14px}
  .sets{grid-template-columns:1fr;gap:0}
  .post{border:0;border-bottom:1px solid var(--line);border-radius:0;padding:0 0 12px}
  .post header{padding:10px 14px}
  .track{border-radius:0}
  .arr{display:none}
  .act,.cap,.dots{padding-left:14px;padding-right:14px}
  .vids{grid-template-columns:1fr;gap:14px;padding:0 16px}
  .vbox{aspect-ratio:4/5}
  .bento{grid-template-columns:1fr 1fr;padding:0 16px;gap:10px}
  .bento .big{grid-column:span 2;grid-row:auto;min-height:120px}
  .bento div{min-height:110px;padding:16px}
  .cta{margin:40px 16px 0;padding:44px 16px}
  body{padding-bottom:calc(64px + env(safe-area-inset-bottom,0px))}
  footer{display:none}
  .tabs{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:20;background:rgba(255,255,255,.95);backdrop-filter:blur(12px);border-top:1px solid var(--line);justify-content:space-around;padding:8px 0 calc(8px + env(safe-area-inset-bottom,0px))}
  .tabs a{display:grid;justify-items:center;gap:2px;font-size:10px;font-weight:700;color:var(--mute);padding:2px 14px}
  .tabs svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:2;stroke-linejoin:round;stroke-linecap:round}
  .toast{bottom:84px}
}
@media(max-width:900px) and (min-width:721px){.hero{grid-template-columns:1fr}.stage{height:420px}}
@media(prefers-reduced-motion:reduce){.c{animation:none}.deck,.vid{transition:none}html{scroll-behavior:auto}}
/* ===== v3: multi halaman ===== */
nav a:not(.btn):hover{color:var(--blue)}
.slide{padding:0;display:block}
.slide img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;background:var(--soft);cursor:zoom-in}
.one{max-width:560px;margin:0 auto;padding:24px 20px 0}
.pn{display:flex;justify-content:space-between;gap:8px;margin-top:16px}.pn .btn{padding:9px 14px;font-size:13px}
.sh{display:flex;justify-content:space-between;align-items:baseline;gap:12px}.sh a{color:var(--blue);font-weight:700;font-size:14px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:14px}
.tile{position:relative;display:block;aspect-ratio:4/5;border-radius:18px;overflow:hidden;background:var(--soft)}
.tile img{width:100%;height:100%;object-fit:cover;transition:transform .3s}.tile:hover img{transform:scale(1.04)}
.tile i{position:absolute;top:8px;right:8px;background:rgba(15,18,32,.6);color:#fff;font-size:11px;font-style:normal;padding:2px 9px;border-radius:999px}
.tile span{position:absolute;left:0;right:0;bottom:0;padding:26px 12px 10px;background:linear-gradient(transparent,rgba(15,18,32,.55));color:#fff;font-size:13px;font-weight:700}
.pager{display:flex;gap:8px;justify-content:center;margin-top:24px}
.vbox a,.vbox button{position:absolute;inset:0;display:grid;place-items:center;border:0;background:none;padding:0;cursor:pointer}
.vbox img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.play{position:relative;color:var(--ink);font-size:20px}
.vbox video{position:absolute;inset:0}
.stories img.pav{object-fit:cover;padding:0}
.tabs a.on{color:var(--blue)}
.lb{position:fixed;inset:0;z-index:60;background:#fff;display:none;flex-direction:column}.lb.on{display:flex}
.lb .bar{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;font-weight:700}
.lb .x{border:0;background:var(--soft);width:38px;height:38px;border-radius:50%;font-size:16px;cursor:pointer}
.lb .view{flex:1;min-height:0;overflow:auto;display:grid;place-items:center;padding:0 8px 12px}
.lb img{max-width:100%;max-height:100%;object-fit:contain;cursor:zoom-in}
.lb.z .view{place-items:start}.lb.z img{max-width:none;max-height:none;width:220%;cursor:zoom-out}
.lb .arr{position:fixed;top:50%}
@media(max-width:720px){
 .grid{grid-template-columns:repeat(3,1fr);gap:2px}.tile{border-radius:0}.tile span{display:none}.tile i{font-size:10px;padding:1px 7px}
 .sh a{padding-right:16px}.one{padding:0}.pn{padding:12px 16px}.pager{padding:0 16px}
 .lb .arr{display:none}.vids{padding:0 16px}
}

/* ===== v4: langit ===== */
.sky{position:relative;overflow:hidden;background:linear-gradient(180deg,#1673ee 0%,#4a9dff 55%,#a9d4ff 100%)}
.clouds{position:absolute;left:0;bottom:-8px;width:calc(100% + 900px);height:55%;background:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='900' height='260' viewBox='0 0 900 260'><filter id='b' x='-20%' y='-40%' width='140%' height='180%'><feGaussianBlur stdDeviation='8'/></filter><g fill='%23fff' filter='url(%23b)'><ellipse cx='200' cy='215' rx='170' ry='34'/><circle cx='130' cy='180' r='44'/><circle cx='205' cy='160' r='58'/><circle cx='280' cy='185' r='42'/><ellipse cx='640' cy='225' rx='150' ry='30'/><circle cx='590' cy='195' r='38'/><circle cx='655' cy='178' r='50'/><circle cx='720' cy='200' r='36'/></g></svg>") repeat-x left bottom/900px auto;animation:d9 160s linear infinite;pointer-events:none;z-index:1}
.clouds.b{height:42%;bottom:24px;opacity:.55;background-size:600px auto;animation:d6 110s linear infinite reverse}
@keyframes d9{to{transform:translateX(-900px)}}@keyframes d6{to{transform:translateX(-600px)}}
.brand{display:flex;align-items:center;gap:10px}.brand img{width:34px;height:34px;object-fit:contain}
.skyhero{margin:-60px 12px 0;border-radius:32px;padding:130px 20px 90px;text-align:center;color:#fff}
.skyhero .in{position:relative;z-index:2}
.skyhero h1{font-size:clamp(38px,6vw,72px);line-height:1.04;letter-spacing:-.035em;margin:0 auto 16px;max-width:800px;font-weight:800}
.skyhero p{max-width:520px;margin:0 auto 26px;opacity:.95}
.skyhero .row{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.btn.wh{background:#fff;color:var(--ink)}
.fanwrap{perspective:1400px;margin-top:56px}
.fan{display:flex;justify-content:center;gap:14px;transform-style:preserve-3d;transform:rotateX(var(--rx,0deg)) rotateY(var(--ry,0deg));transition:transform .2s ease-out}
.fc{flex:none;width:clamp(110px,15vw,170px);aspect-ratio:4/5;border-radius:20px;overflow:hidden;background:#fff;border:3px solid rgba(255,255,255,.95);box-shadow:0 22px 44px rgba(10,50,130,.3);display:grid;place-items:center;font-weight:800;color:#fff;transition:translate .25s}
.fc img{width:100%;height:100%;object-fit:cover}
.fc.ph{background:linear-gradient(150deg,hsl(var(--h) 85% 55%),hsl(calc(var(--h) + 30) 90% 72%))}
.fc:hover{translate:0 -10px}
.fc:nth-child(1){transform:rotateY(30deg) translateZ(-60px)}.fc:nth-child(2){transform:rotateY(15deg) translateZ(-20px)}.fc:nth-child(3){transform:translateZ(30px)}.fc:nth-child(4){transform:rotateY(-15deg) translateZ(-20px)}.fc:nth-child(5){transform:rotateY(-30deg) translateZ(-60px)}
.mq{overflow:hidden;margin:26px 0 0}.mq div{display:flex;width:max-content;animation:mq 40s linear infinite;color:var(--mute);font-weight:700;font-size:15px}.mq span{padding-right:44px}
@keyframes mq{to{transform:translateX(-50%)}}
.bento .big{flex-direction:column;justify-content:space-between;align-items:flex-start;gap:16px}.wl{width:96px;height:auto}
.prof .cover{height:112px;margin:-16px -16px 0;border-radius:0 0 28px 28px}.prof .cover .clouds{height:80%;background-size:600px auto}
.prof .pr{margin-top:-40px;position:relative;z-index:2;align-items:flex-end}
.prof .ring{background:#fff;box-shadow:0 4px 14px rgba(20,60,140,.2)}.prof .pav{background:#fff}.prof .pav img{width:100%;height:100%;object-fit:contain;padding:14px}
@media(prefers-reduced-motion:reduce){.clouds,.mq div{animation:none}}