:root{
  --bg:#000;--bg2:#05070D;--panel:#0A0F1C;--panel2:#0E1626;--line:#1B2740;
  --text:#EAF0FB;--muted:#9AA9C4;--blue:#2F7BFF;--blue2:#5B9BFF;--glow:#8CC0FF;--ok:#3DDC97;--warn:#FFC857;
  --radius:16px;--wrap:1080px;
  --font:system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
body{margin:0;background:var(--bg);color:var(--text);font:17px/1.65 var(--font)}
img{max-width:100%;height:auto}
a{color:var(--blue2);text-underline-offset:3px}
a:hover{color:var(--glow)}
:focus-visible{outline:3px solid var(--glow);outline-offset:3px;border-radius:4px}
.skip{position:absolute;left:-999px;top:8px;background:var(--blue);color:#fff;padding:10px 16px;border-radius:8px;z-index:100}
.skip:focus{left:8px}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}
h1,h2,h3{line-height:1.2;margin:0 0 .5em;letter-spacing:-.01em}
h1{font-size:clamp(2.1rem,5.2vw,3.4rem)}
h2{font-size:clamp(1.55rem,3.2vw,2.1rem);margin-top:1.8em}
h3{font-size:1.15rem;margin-top:1.4em}
p,ul,ol{margin:0 0 1.1em}
ul,ol{padding-left:1.3em}li{margin:.3em 0}
.kicker{color:var(--blue2);font-weight:700;letter-spacing:.12em;text-transform:uppercase;font-size:.8rem;margin:0 0 .8em}
.lead{font-size:1.2rem;color:#C7D3EA;max-width:60ch}
.muted{color:var(--muted)}
/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(0,0,0,.82);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);text-decoration:none;font-weight:700;font-size:1.1rem}
.brand img{width:34px;height:34px;border-radius:8px}
.nav{display:flex;flex-wrap:wrap;gap:4px 18px}
.nav a{color:#C7D3EA;text-decoration:none;font-size:.95rem;padding:8px 2px}
.nav a:hover,.nav a[aria-current="page"]{color:#fff}
.nav a[aria-current="page"]{border-bottom:2px solid var(--blue)}
/* hero */
.hero{position:relative;padding:72px 0 56px;background:radial-gradient(900px 480px at 78% 30%,rgba(47,123,255,.20),transparent 62%),var(--bg)}
.hero .wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.hero h1 .accent{color:var(--blue2);text-shadow:0 0 28px rgba(47,123,255,.55)}
.badges{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0 8px}
.store{display:inline-flex;flex-direction:column;border:1px solid var(--line);background:var(--panel);color:var(--text);border-radius:12px;padding:10px 18px;min-width:190px;min-height:56px;justify-content:center}
.store small{color:var(--muted);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase}
.store strong{font-size:1.02rem}
.store[aria-disabled="true"]{opacity:.85;cursor:not-allowed}
.soon{display:inline-block;background:rgba(47,123,255,.15);border:1px solid rgba(47,123,255,.5);color:var(--glow);border-radius:999px;padding:3px 12px;font-size:.78rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase}
.hero-art{display:flex;justify-content:center}
.hero-art img{width:min(340px,70vw);border-radius:22%;box-shadow:0 0 0 1px rgba(47,123,255,.25),0 0 90px rgba(47,123,255,.38)}
.btn{display:inline-block;background:var(--blue);color:#fff;text-decoration:none;font-weight:700;padding:13px 22px;border-radius:12px;min-height:48px}
.btn:hover{background:#4C8DFF;color:#fff}
.btn.ghost{background:transparent;border:1px solid var(--line);color:var(--text)}
.btn.ghost:hover{border-color:var(--blue2)}
/* sections */
section{padding:56px 0}
section.alt{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.page-head{padding:56px 0 24px;background:radial-gradient(700px 300px at 85% 0,rgba(47,123,255,.15),transparent 60%)}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.card h3{margin-top:0}
.step-n{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:50%;background:rgba(47,123,255,.18);border:1px solid var(--blue);color:var(--glow);font-weight:700;margin-bottom:12px}
.note{border-left:4px solid var(--blue);background:var(--panel);padding:14px 18px;border-radius:0 12px 12px 0;margin:0 0 1.4em}
.note.warn{border-color:var(--warn)}
.note.todo{border-color:var(--warn);background:#1a1606}
.tbl-wrap{overflow-x:auto;margin:0 0 1.4em}
.tbl{border-collapse:collapse;width:100%;min-width:560px;font-size:.96rem}
.tbl th,.tbl td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
.tbl th{background:var(--panel2)}
details{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:4px 18px;margin:0 0 12px}
summary{cursor:pointer;font-weight:600;padding:14px 0;min-height:48px}
details[open] summary{color:var(--glow)}
/* demo phone */
.demo{display:grid;grid-template-columns:auto 1fr;gap:40px;align-items:center}
.phone{width:290px;height:560px;border-radius:40px;border:2px solid #26344f;background:#000;padding:14px;box-shadow:0 0 0 6px #070b14,0 30px 80px rgba(47,123,255,.18);position:relative;flex:none}
.screen{height:100%;border-radius:28px;background:var(--bg2);overflow:hidden;position:relative;display:flex;flex-direction:column}
.sim-tag{position:absolute;top:8px;left:50%;transform:translateX(-50%);background:#1a1606;color:var(--warn);border:1px solid #5a4410;font-size:.62rem;font-weight:700;letter-spacing:.1em;padding:2px 10px;border-radius:999px;z-index:3}
.pane{display:none;flex:1;flex-direction:column;align-items:center;justify-content:center;padding:44px 20px 20px;text-align:center;gap:14px}
.pane.on{display:flex}
.pane h4{margin:0;font-size:1.05rem}
.pane p{margin:0;font-size:.84rem;color:var(--muted);line-height:1.45}
.pane .u{width:84px;border-radius:22%}
.big{width:196px;height:196px;border-radius:50%;border:0;color:#fff;font:700 1.02rem/1.2 var(--font);letter-spacing:.04em;cursor:pointer;background:radial-gradient(circle at 50% 38%,#4C8DFF,#1647A8 72%);box-shadow:0 0 0 8px rgba(47,123,255,.14),0 0 60px rgba(47,123,255,.55)}
.big:hover{box-shadow:0 0 0 10px rgba(47,123,255,.2),0 0 76px rgba(47,123,255,.7)}
.spin{width:54px;height:54px;border-radius:50%;border:4px solid rgba(47,123,255,.25);border-top-color:var(--blue2);animation:sp 1s linear infinite}
@keyframes sp{to{transform:rotate(360deg)}}
.composer{width:100%;background:#0d1424;border:1px solid var(--line);border-radius:14px;padding:12px;text-align:left;font-size:.78rem;color:#C7D3EA}
.composer b{color:#fff}
.pill{display:inline-block;border:1px solid var(--line);border-radius:999px;padding:3px 10px;font-size:.7rem;color:var(--muted)}
.mini{background:transparent;border:1px solid var(--line);color:var(--text);padding:9px 14px;border-radius:10px;cursor:pointer;font:600 .8rem var(--font);min-height:40px}
.mini.primary{background:var(--blue);border-color:var(--blue)}
.state-list{list-style:none;padding:0;margin:18px 0 0;display:flex;flex-wrap:wrap;gap:8px}
.state-list li{border:1px solid var(--line);border-radius:999px;padding:4px 12px;font-size:.82rem;color:var(--muted);margin:0}
.state-list li.on{border-color:var(--blue);color:#fff;background:rgba(47,123,255,.18)}
/* footer */
.site-footer{border-top:1px solid var(--line);background:var(--bg2);padding:40px 0 56px;font-size:.92rem;color:var(--muted)}
.foot-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:28px}
.site-footer a{color:#C7D3EA;text-decoration:none;display:inline-block;padding:4px 0}
.site-footer a:hover{color:#fff;text-decoration:underline}
.site-footer h3{font-size:.85rem;letter-spacing:.1em;text-transform:uppercase;color:#fff;margin:0 0 8px}
.fine{margin-top:26px;border-top:1px solid var(--line);padding-top:18px;font-size:.84rem}
@media (max-width:860px){
  .hero .wrap,.demo{grid-template-columns:1fr}
  .hero-art{order:-1}
  .grid3,.grid2,.foot-grid{grid-template-columns:1fr}
  .bar{flex-direction:column;align-items:flex-start;padding:10px 20px}
  .demo{justify-items:center}
}