:root{
  --bg:#08070D; --bg-2:#0E0C16; --surface:#16131F; --line:#241F33;
  --text:#F3F1FA; --muted:#9A93B0; --accent:#8B5CFF; --accent-2:#2AE6D0; --pink:#FF5C9D;
  --display:'Unbounded',sans-serif; --font:'Inter',system-ui,sans-serif;
  --maxw:1120px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:var(--font);overflow-x:hidden;line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
.container{max-width:var(--maxw);margin:0 auto;padding:0 22px}
h1,h2,h3{font-family:var(--display);font-weight:600;letter-spacing:-.025em;line-height:1.04}

/* ambient blurred blobs */
.blob{position:fixed;border-radius:50%;filter:blur(90px);opacity:.5;z-index:-1;pointer-events:none;will-change:transform}
.blob.a{width:520px;height:520px;background:var(--accent);top:-160px;left:-120px}
.blob.b{width:460px;height:460px;background:var(--accent-2);top:40%;right:-160px;opacity:.32}
.blob.c{width:420px;height:420px;background:var(--pink);bottom:-160px;left:30%;opacity:.28}

/* nav */
.nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(16px);background:rgba(8,7,13,.6);border-bottom:1px solid transparent;transition:border-color .3s}
.nav.scrolled{border-color:var(--line)}
.nav .container{display:flex;align-items:center;height:66px;gap:20px}
.logo{font-family:var(--display);font-weight:600;font-size:20px;display:flex;align-items:center;gap:8px}
.logo .dot{width:10px;height:10px;border-radius:50%;background:var(--accent);box-shadow:0 0 18px var(--accent)}
.nav .spacer{flex:1}
.nav a.link{color:var(--muted);font-size:14px;font-weight:500}
.nav a.link:hover{color:var(--text)}
.btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--font);font-weight:600;font-size:15px;
  border:none;cursor:pointer;border-radius:13px;padding:12px 20px;background:var(--accent);color:#fff;
  transition:transform .15s,box-shadow .25s;box-shadow:0 8px 30px -10px var(--accent)}
.btn:hover{transform:translateY(-2px);box-shadow:0 14px 40px -10px var(--accent)}
.btn.ghost{background:rgba(255,255,255,.06);box-shadow:none;border:1px solid var(--line)}
.btn.lg{padding:16px 30px;font-size:17px;border-radius:16px}

/* hero */
.hero{padding:90px 0 60px;position:relative}
.hero .grid{display:grid;grid-template-columns:1.05fr .95fr;gap:50px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--accent-2);
  background:rgba(42,230,208,.08);border:1px solid rgba(42,230,208,.2);padding:6px 13px;border-radius:999px;font-weight:600}
.hero h1{font-size:clamp(40px,6.4vw,76px);margin:22px 0 18px}
.hero h1 .grad{background:linear-gradient(100deg,var(--accent),var(--accent-2) 60%,var(--pink));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{font-size:19px;color:var(--muted);max-width:480px;margin-bottom:30px}
.hero .actions{display:flex;gap:14px;flex-wrap:wrap}
.trust{display:flex;gap:22px;margin-top:30px;color:var(--muted);font-size:14px}
.trust b{color:var(--text);font-family:var(--display)}

/* hero floating cards */
.stage{position:relative;height:480px}
.fcard{position:absolute;width:300px;background:linear-gradient(160deg,var(--surface),#100E18);
  border:1px solid var(--line);border-radius:22px;padding:20px;box-shadow:0 30px 70px -30px #000;
  animation:float 7s ease-in-out infinite}
.fcard .who{font-size:12px;color:var(--accent-2);letter-spacing:.14em;text-transform:uppercase;font-weight:600}
.fcard .qt{font-family:var(--display);font-size:18px;margin:8px 0}
.fcard .at{font-size:14px;color:var(--muted)}
.fcard.c1{top:10px;left:0;animation-delay:0s}
.fcard.c2{top:170px;right:0;animation-delay:1.2s;border-color:rgba(139,92,255,.35)}
.fcard.c3{bottom:0;left:40px;animation-delay:2.4s}
@keyframes float{0%,100%{transform:translateY(0) rotate(-1deg)}50%{transform:translateY(-16px) rotate(1deg)}}
.emoji-pop{position:absolute;font-size:30px;animation:pop 5s ease-in-out infinite}
.emoji-pop.e1{top:0;right:60px}.emoji-pop.e2{bottom:30px;right:120px;animation-delay:1.5s}
@keyframes pop{0%,100%{transform:translateY(0) scale(1);opacity:.85}50%{transform:translateY(-14px) scale(1.15);opacity:1}}

/* reveal on scroll */
.reveal{opacity:0;transform:translateY(34px);transition:opacity .7s cubic-bezier(.2,.8,.2,1),transform .7s cubic-bezier(.2,.8,.2,1)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}.reveal.d3{transition-delay:.24s}

/* sections */
section{padding:80px 0}
.section-head{text-align:center;max-width:640px;margin:0 auto 50px}
.section-head .kicker{color:var(--accent);font-weight:600;font-size:14px;letter-spacing:.1em;text-transform:uppercase}
.section-head h2{font-size:clamp(30px,4.4vw,46px);margin:12px 0}
.section-head p{color:var(--muted);font-size:17px}

/* feature grid */
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.feature{background:linear-gradient(160deg,var(--surface),rgba(22,19,31,.4));border:1px solid var(--line);
  border-radius:20px;padding:26px;transition:transform .3s,border-color .3s}
.feature:hover{transform:translateY(-6px);border-color:rgba(139,92,255,.4)}
.feature .ico{width:50px;height:50px;border-radius:14px;display:grid;place-items:center;font-size:24px;
  background:rgba(139,92,255,.12);margin-bottom:16px}
.feature h3{font-size:20px;margin-bottom:8px}
.feature p{color:var(--muted);font-size:15px}

/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;counter-reset:s}
.step{position:relative;padding-top:18px}
.step .n{font-family:var(--display);font-size:54px;background:linear-gradient(120deg,var(--accent),var(--accent-2));
  -webkit-background-clip:text;background-clip:text;color:transparent;line-height:1}
.step h3{font-size:20px;margin:10px 0 8px}
.step p{color:var(--muted);font-size:15px}

/* card showcase */
.showcase{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.demo-card{aspect-ratio:1;border-radius:26px;padding:28px;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:60px;text-align:center;
  background:#0B0B0F;position:relative;overflow:hidden;box-shadow:0 30px 80px -30px #000;max-width:380px;margin:0 auto;width:100%}
.demo-card::before{content:'';position:absolute;width:70%;aspect-ratio:1;border-radius:50%;background:var(--accent);filter:blur(70px);opacity:.5;top:-12%;left:-10%}
.demo-card .qq{font-family:var(--display);font-size:25px;position:relative;line-height:1.15}
.demo-card .aa{font-size:18px;position:relative;color:#cfc8e6;line-height:1.4}
.demo-card .ff{position:absolute;bottom:22px;left:0;right:0;text-align:center;font-size:13px;opacity:.55;font-weight:600;letter-spacing:.04em}
.theme-dots{display:flex;gap:10px;margin-top:22px}
.theme-dots span{width:30px;height:30px;border-radius:9px;cursor:pointer;border:2px solid transparent;transition:transform .15s}
.theme-dots span:hover{transform:scale(1.12)}
.theme-dots span.sel{border-color:#fff}

/* CTA band */
.cta-band{margin:0 22px;border-radius:30px;background:linear-gradient(120deg,rgba(139,92,255,.18),rgba(42,230,208,.12));
  border:1px solid var(--line);padding:60px 30px;text-align:center;position:relative;overflow:hidden}
.cta-band h2{font-size:clamp(28px,4vw,44px);margin-bottom:14px}
.cta-band p{color:var(--muted);margin-bottom:26px;font-size:17px}

footer{padding:50px 0 60px;color:var(--muted);font-size:14px;border-top:1px solid var(--line);margin-top:60px}
footer .container{display:flex;justify-content:space-between;flex-wrap:wrap;gap:16px}

/* auth modal */
.modal-bg{position:fixed;inset:0;background:rgba(5,4,10,.7);backdrop-filter:blur(8px);z-index:100;
  display:none;place-items:center;padding:20px}
.modal-bg.open{display:grid}
.modal{background:var(--bg-2);border:1px solid var(--line);border-radius:24px;padding:32px;max-width:400px;width:100%;
  animation:rise .4s cubic-bezier(.2,.8,.2,1)}
@keyframes rise{from{opacity:0;transform:translateY(20px) scale(.98)}to{opacity:1;transform:none}}
.modal h3{font-size:24px;margin-bottom:6px}
.modal p.sub{color:var(--muted);font-size:14px;margin-bottom:20px}
.modal input{width:100%;background:var(--surface);border:1px solid var(--line);color:var(--text);
  border-radius:13px;padding:14px;font:inherit;margin-bottom:12px}
.modal input:focus{outline:none;border-color:var(--accent)}
.modal .switch{text-align:center;margin-top:16px;font-size:14px;color:var(--muted)}
.modal .switch a{color:var(--accent);cursor:pointer;font-weight:600}
.err{color:var(--pink);font-size:14px;margin-bottom:10px;min-height:18px}

@media(max-width:880px){
  .hero .grid,.showcase,.features,.steps{grid-template-columns:1fr}
  .stage{height:420px;margin-top:20px}
  .nav a.link{display:none}
}
@media(prefers-reduced-motion:reduce){
  .fcard,.emoji-pop,.blob{animation:none}
  .reveal{transition:none;opacity:1;transform:none}
}