:root{--bg:#0b1a27;--bg2:#0f2233;--card:#13293b;--line:#24425a;--text:#eef3f7;--muted:#9db3c4;--gold:#e8b64a;--gold2:#f5cf7a;--radius:18px;--max:1080px}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font:17px/1.6 -apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",Roboto,sans-serif;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--gold2);text-decoration:none}a:hover{text-decoration:underline}
h1,h2,h3{line-height:1.15;font-weight:700;letter-spacing:-.01em}
.wrap{max-width:var(--max);margin:0 auto;padding:0 22px}
.narrow{max-width:760px}.center{text-align:center}
/* language switching */
[data-l]{display:none}[data-l].on{display:revert}
/* nav */
.nav{position:sticky;top:0;z-index:20;background:rgba(11,26,39,.82);backdrop-filter:saturate(180%) blur(14px);-webkit-backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;gap:22px;height:60px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.1rem;color:var(--text)}
.brand img{width:30px;height:30px;border-radius:7px}.brand:hover{text-decoration:none}
.nav .links{display:flex;gap:22px;margin-left:auto;font-size:.95rem}
.nav .links a{color:var(--muted)}.nav .links a:hover{color:var(--text);text-decoration:none}
.lang{display:flex;border:1px solid var(--line);border-radius:999px;overflow:hidden}
.lang button{background:none;border:0;color:var(--muted);font:inherit;font-size:.78rem;padding:5px 10px;cursor:pointer}
.lang button[aria-pressed="true"]{background:var(--gold);color:#1a1405;font-weight:700}
/* hero */
.hero{text-align:center;padding:84px 0 70px;background:radial-gradient(900px 420px at 50% -10%,rgba(232,182,74,.16),transparent 70%),linear-gradient(180deg,var(--bg2),var(--bg))}
.app-icon{width:128px;height:128px;border-radius:29px;margin:0 auto 26px;box-shadow:0 18px 50px rgba(0,0,0,.55),0 0 0 1px rgba(255,255,255,.07)}
.hero h1{font-size:clamp(2.6rem,7vw,4.6rem)}.hero h1 span{color:var(--gold2)}
.lead{max-width:640px;margin:18px auto 0;font-size:1.2rem;color:#c8d6e1}
.cta{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:30px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 26px;border-radius:999px;font-weight:700;font-size:1rem;border:1px solid transparent;cursor:pointer}
.btn svg{width:18px;height:18px}
.btn.primary{background:linear-gradient(180deg,var(--gold2),var(--gold));color:#1a1405}
a.btn.primary:hover{text-decoration:none;filter:brightness(1.08)}
.btn.ghost{border-color:rgba(255,255,255,.28);color:var(--text)}.btn.ghost:hover{text-decoration:none;background:rgba(255,255,255,.08)}
.platforms{margin-top:22px;color:var(--muted);letter-spacing:.12em;font-size:.82rem;text-transform:uppercase}
/* sections */
section{padding:84px 0}section.alt{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
h2{font-size:clamp(1.8rem,4vw,2.5rem);margin-bottom:12px}
.sub{color:var(--muted);max-width:660px;font-size:1.08rem}
.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px;margin-top:40px}
.feat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.feat h3{font-size:1.15rem;margin:14px 0 6px}.feat p{color:var(--muted);font-size:.98rem}
.ico{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(145deg,rgba(232,182,74,.22),rgba(232,182,74,.06));color:var(--gold2)}
.ico svg{width:24px;height:24px}.ico.big{width:64px;height:64px;margin-bottom:18px}.ico.big svg{width:32px;height:32px}
/* plans */
.plans{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px;margin-top:40px;max-width:820px}
.plan{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:30px}
.plan.pro{border-color:var(--gold);box-shadow:0 0 0 1px var(--gold) inset,0 20px 60px rgba(232,182,74,.12)}
.plan h3{font-size:1.5rem}.price{color:var(--gold2);font-weight:700;margin:6px 0 18px}
.plan ul{list-style:none;display:grid;gap:11px}
.plan li{display:flex;gap:10px;align-items:flex-start;color:#d3e0ea}
.plan li svg{flex:none;width:20px;height:20px;margin-top:3px;color:var(--gold)}
/* docs */
main.narrow{padding-top:56px;padding-bottom:72px}
.doc h1{font-size:clamp(2rem,5vw,2.8rem);margin-bottom:6px}.doc h2{font-size:1.3rem;margin:30px 0 6px}
.muted{color:var(--muted)}.big-mail{margin-top:34px;font-size:1.15rem}
main.center h1{font-size:4rem;margin-bottom:8px}main.center .btn{margin-top:16px}
/* footer */
footer{border-top:1px solid var(--line);padding:32px 0 44px;color:var(--muted);font-size:.9rem}
footer .row{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px 24px;margin-bottom:14px}
footer nav{display:flex;flex-wrap:wrap;gap:18px}footer p{max-width:760px}
@media(max-width:720px){.nav .links{display:none}.nav .lang{margin-left:auto}section{padding:60px 0}.hero{padding:56px 0 48px}}