:root{
  --cyan:#22b8d6; --blue:#4f7cf0; --purple:#7c4df0; --pink:#c64be6;
  --ink:#141a2e; --body:#404a63; --muted:#7a849c;
  --bg:#f4f7ff; --card:#ffffff; --line:#e6ebf6;
  --grad:linear-gradient(120deg,var(--cyan),var(--blue) 42%,var(--purple) 74%,var(--pink));
  --shadow:0 18px 50px rgba(40,60,120,.12);
  color-scheme:light;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body.landing{margin:0;background:var(--bg);color:var(--body);overflow-x:hidden;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--purple);text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:1140px;margin:0 auto;padding:0 24px}

#aurora{position:fixed;inset:0;width:100%;height:100%;z-index:-2;display:block;opacity:.7}
body.landing::before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:linear-gradient(180deg,rgba(244,247,255,.2),rgba(244,247,255,.85))}
#progress{position:fixed;top:0;left:0;height:3px;width:0;z-index:50;background:var(--grad);
  box-shadow:0 0 12px rgba(124,77,240,.5)}

/* buttons */
.btn{position:relative;display:inline-flex;align-items:center;gap:8px;font-weight:700;
  padding:14px 26px;border-radius:40px;color:#fff;background:var(--grad);background-size:200% 200%;
  overflow:hidden;border:0;cursor:pointer;box-shadow:0 12px 30px rgba(124,77,240,.32);
  transition:transform .18s,box-shadow .18s;animation:flow 8s linear infinite}
.btn:hover{transform:translateY(-3px);box-shadow:0 18px 40px rgba(124,77,240,.45);text-decoration:none}
.btn::after{content:"";position:absolute;top:0;left:-60%;width:40%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.6),transparent);transform:skewX(-20deg);
  animation:shine 4.5s ease-in-out infinite}
.btn.ghost{background:#fff;color:var(--ink);border:1.5px solid var(--line);box-shadow:var(--shadow);animation:none}
.btn.ghost::after{display:none}
@keyframes flow{to{background-position:200% 0}}
@keyframes shine{0%,60%{left:-60%}100%{left:140%}}

/* nav */
header.nav{position:sticky;top:0;z-index:40;backdrop-filter:blur(14px);
  background:rgba(255,255,255,.72);border-bottom:1px solid var(--line)}
.nav .row{display:flex;align-items:center;gap:16px;height:66px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--ink);font-size:18px}
.brand img{width:34px;height:34px;border-radius:10px;box-shadow:0 6px 16px rgba(124,77,240,.35)}
.nav nav{margin-left:auto;display:flex;align-items:center;gap:24px}
.nav nav a{color:var(--ink);font-weight:600}
.nav nav a:hover{color:var(--purple)}
.nav .cta{padding:9px 18px;border-radius:30px;color:#fff;background:var(--grad);background-size:200% 200%;animation:flow 8s linear infinite}
.nav .cta:hover{text-decoration:none}

/* hero */
.hero{position:relative;padding:84px 0 90px;min-height:84vh;display:flex;align-items:center}
.hero .grid{display:grid;grid-template-columns:1.05fr .95fr;gap:30px;align-items:center;width:100%}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.4px;
  text-transform:uppercase;color:var(--purple);padding:7px 14px;border:1px solid var(--line);border-radius:30px;
  background:#fff;box-shadow:var(--shadow);margin-bottom:20px}
.eyebrow .dot{width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan);animation:pulse 1.8s infinite}
@keyframes pulse{50%{opacity:.4;transform:scale(.8)}}
.hero h1{font-size:62px;line-height:1.04;font-weight:900;letter-spacing:-1.5px;margin:0 0 18px;color:var(--ink)}
.gradtext{background:var(--grad);background-size:200% 200%;-webkit-background-clip:text;background-clip:text;
  color:transparent;animation:flow 7s linear infinite}
.hero p.lead{font-size:20px;color:var(--body);max-width:32em;margin:0 0 30px}
.actions{display:flex;gap:14px;flex-wrap:wrap;align-items:center}
.tiny{font-size:13px;color:var(--muted);margin-top:16px}
.scrolldown{position:absolute;left:50%;bottom:22px;transform:translateX(-50%);color:var(--muted);font-size:12px;text-align:center;animation:bob 2s ease-in-out infinite}
.scrolldown i{display:block;width:22px;height:34px;border:2px solid var(--line);border-radius:14px;margin:0 auto 6px;position:relative;background:#fff}
.scrolldown i::after{content:"";position:absolute;left:50%;top:7px;width:4px;height:6px;border-radius:3px;background:var(--purple);transform:translateX(-50%);animation:wheel 2s infinite}
@keyframes wheel{50%{transform:translate(-50%,10px);opacity:.3}}
@keyframes bob{50%{transform:translate(-50%,-6px)}}

/* hero stage */
.stage{position:relative;height:560px;perspective:1200px}
.phone{position:absolute;border-radius:30px;overflow:hidden;border:5px solid #fff;
  box-shadow:0 40px 80px rgba(40,60,120,.28);will-change:transform}
.phone.p1{width:248px;right:54px;top:6px}
.phone.p2{width:232px;left:6px;top:96px;z-index:3}
.float{position:absolute;border-radius:16px;overflow:hidden;width:96px;height:96px;
  border:4px solid #fff;box-shadow:0 18px 36px rgba(40,60,120,.22);will-change:transform}
.float.f1{left:-14px;top:-6px;animation:drift 7s ease-in-out infinite}
.float.f2{right:-10px;bottom:40px;width:84px;height:84px;animation:drift 9s ease-in-out infinite reverse}
.float.f3{right:120px;bottom:-14px;width:74px;height:74px;animation:drift 8s ease-in-out infinite}
@keyframes drift{50%{transform:translateY(-16px) rotate(3deg)}}
.glow{position:absolute;width:440px;height:440px;border-radius:50%;filter:blur(80px);opacity:.5;z-index:-1;
  background:conic-gradient(from 0deg,var(--cyan),var(--purple),var(--pink),var(--cyan));
  left:54%;top:48%;transform:translate(-50%,-50%);animation:spin 20s linear infinite}
@keyframes spin{to{transform:translate(-50%,-50%) rotate(360deg)}}

/* sections */
section{position:relative;padding:84px 0}
.kicker{text-align:center;color:var(--purple);font-weight:700;letter-spacing:1px;text-transform:uppercase;font-size:13px;margin:0 0 10px}
h2.title{font-size:40px;font-weight:900;text-align:center;margin:0 0 12px;letter-spacing:-.8px;color:var(--ink)}
p.sub{text-align:center;color:var(--muted);max-width:36em;margin:0 auto 50px;font-size:17px}

/* stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;border:1px solid var(--line);
  border-radius:22px;background:#fff;box-shadow:var(--shadow);padding:30px 20px}
.stat{text-align:center}
.stat b{display:block;font-size:38px;font-weight:900;line-height:1;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat span{color:var(--muted);font-size:14px}

/* features */
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.feat{position:relative;padding:28px;border-radius:20px;background:var(--card);border:1px solid var(--line);
  box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s;overflow:hidden}
.feat:hover{transform:translateY(-6px);box-shadow:0 28px 60px rgba(40,60,120,.18)}
.feat::before{content:"";position:absolute;inset:0;border-radius:20px;padding:1.5px;opacity:0;transition:opacity .2s;
  background:var(--grad);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none}
.feat:hover::before{opacity:1}
.feat .ic{width:54px;height:54px;border-radius:16px;margin-bottom:18px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(79,124,240,.13),rgba(124,77,240,.13));
  border:1px solid rgba(124,77,240,.12)}
.feat .ic svg{width:28px;height:28px;display:block}
.feat:hover .ic{transform:translateY(-2px);transition:transform .2s}
.feat h3{margin:0 0 6px;font-size:19px;color:var(--ink)}
.feat p{margin:0;color:var(--body);font-size:15px}

/* interactive demo */
.demo-wrap{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.demo-stage{position:relative;aspect-ratio:1;border-radius:24px;overflow:hidden;border:1px solid var(--line);
  background:#eef2fb;box-shadow:var(--shadow);touch-action:none}
.demo-stage canvas{width:100%;height:100%;display:block;cursor:crosshair}
.demo-hint{position:absolute;left:50%;bottom:16px;transform:translateX(-50%);font-size:13px;color:#fff;
  background:rgba(20,26,46,.82);padding:7px 14px;border-radius:30px;pointer-events:none;transition:opacity .4s}
.demo-controls{display:flex;gap:10px;margin-top:18px;flex-wrap:wrap}
.chip{font-weight:600;font-size:14px;padding:10px 16px;border-radius:30px;border:1px solid var(--line);
  background:#fff;color:var(--ink);cursor:pointer;transition:.18s;box-shadow:var(--shadow)}
.chip:hover{border-color:var(--purple);color:var(--purple);transform:translateY(-2px)}
.chip.active{background:var(--grad);color:#fff;border-color:transparent}
.demo-copy h2{font-size:34px;font-weight:900;margin:0 0 14px;letter-spacing:-.6px;color:var(--ink)}
.demo-copy p{color:var(--body);font-size:17px;margin:0 0 18px}
.demo-copy li{color:var(--body);margin:4px 0}

/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.step{position:relative;padding:26px;border-radius:18px;background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow)}
.step .n{display:inline-flex;width:46px;height:46px;border-radius:50%;background:var(--grad);background-size:200% 200%;
  color:#fff;font-weight:900;align-items:center;justify-content:center;margin-bottom:14px;animation:flow 8s linear infinite}
.step h3{margin:0 0 6px;color:var(--ink);font-size:19px}
.step p{margin:0;color:var(--body);font-size:15px}

/* marquee */
.marquee{overflow:hidden;-webkit-mask:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.mtrack{display:flex;gap:18px;width:max-content;animation:scrollx 32s linear infinite}
.marquee:hover .mtrack{animation-play-state:paused}
.mtrack img{width:200px;height:200px;object-fit:cover;border-radius:18px;border:4px solid #fff;box-shadow:var(--shadow)}
@keyframes scrollx{to{transform:translateX(-50%)}}

/* cta */
.cta-band{position:relative;text-align:center;border-radius:28px;padding:64px 24px;overflow:hidden;
  background:var(--grad);background-size:200% 200%;animation:flow 10s linear infinite;color:#fff;
  box-shadow:0 30px 70px rgba(124,77,240,.35)}
.cta-band h2{font-size:38px;font-weight:900;margin:0 0 12px;color:#fff}
.cta-band p{color:rgba(255,255,255,.92);font-size:19px;margin:0 0 26px}
.cta-band .btn{background:#fff;color:var(--purple);animation:none}
.cta-band .btn::after{background:linear-gradient(100deg,transparent,rgba(124,77,240,.18),transparent)}

/* footer */
footer.site{border-top:1px solid var(--line);padding:40px 0;color:var(--muted);background:#fff}
footer.site .row{display:flex;flex-wrap:wrap;gap:18px;align-items:center}
footer.site .brand{color:var(--ink)}
footer.site nav{margin-left:auto;display:flex;gap:20px}
footer.site a{color:var(--body)}
footer.site .cr{width:100%;border-top:1px solid var(--line);margin-top:22px;padding-top:18px;font-size:13px;color:var(--muted)}

/* reveal */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}.reveal.d3{transition-delay:.24s}
.reveal.d4{transition-delay:.32s}.reveal.d5{transition-delay:.4s}

@media(prefers-reduced-motion:reduce){*{animation:none!important}.reveal{opacity:1;transform:none;transition:none}}

@media(max-width:920px){
  .hero{min-height:auto;padding:54px 0 40px}
  .hero .grid{grid-template-columns:1fr;gap:18px}
  .hero h1{font-size:42px}
  .stage{height:430px;order:2}
  .stats{grid-template-columns:repeat(2,1fr)}
  .features,.steps{grid-template-columns:1fr}
  .demo-wrap{grid-template-columns:1fr;gap:24px}
  .scrolldown{display:none}
  h2.title{font-size:30px}
}