:root{
  --bg:#0a0e17; --bg2:#0f1521; --panel:#141b2b; --line:#1f2a44;
  --line2:#2a3654; --txt:#eaeef7; --mut:#8c98b0; --ac:#4f8cff; --ac2:#7dd3a8; --warn:#ffb454;
  --rad:16px; --maxw:1080px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--txt);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;line-height:1.65;-webkit-font-smoothing:antialiased}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.narrow{max-width:680px}
.center{text-align:center}
.mut{color:var(--mut)}
a{color:var(--ac);text-decoration:none}
em{font-style:normal;color:var(--ac)}
h1,h2,h3,h4{letter-spacing:-.5px;line-height:1.15}

/* nav */
.nav{position:sticky;top:0;z-index:50;background:rgba(10,14,23,.82);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.navin{display:flex;justify-content:space-between;align-items:center;height:64px}
.logo{font-weight:800;font-size:1.3rem;color:var(--txt)}.logo span{color:var(--ac)}
.navlinks{display:flex;align-items:center;gap:26px}
.navlinks a{color:var(--mut);font-size:.94rem;font-weight:500}
.navlinks a:hover{color:var(--txt)}
@media(max-width:760px){.navlinks a:not(.btn){display:none}}

/* buttons */
.btn{display:inline-block;background:var(--ac);color:#fff;font-weight:700;padding:11px 22px;border-radius:11px;border:none;cursor:pointer;font-size:1rem;transition:.15s;text-align:center}
.btn:hover{background:#3d78e8;transform:translateY(-1px)}
.btn-lg{padding:15px 32px;font-size:1.06rem}
.btn-sm{padding:8px 16px;font-size:.9rem}
.btn-full{width:100%}
.btn-ghost{background:transparent;border:1px solid var(--line2);color:var(--txt)}
.btn-ghost:hover{background:var(--panel);border-color:var(--ac)}

/* hero */
.hero{padding:78px 0 60px;background:radial-gradient(1200px 500px at 50% -10%,rgba(79,140,255,.14),transparent 70%)}
.badge{display:inline-block;background:rgba(79,140,255,.12);color:var(--ac);border:1px solid rgba(79,140,255,.3);padding:7px 16px;border-radius:20px;font-size:.85rem;font-weight:600;margin-bottom:26px}
.hero h1{font-size:clamp(2rem,5.2vw,3.5rem);font-weight:800;margin-bottom:22px}
.lead{font-size:1.18rem;color:#c3ccdd;max-width:720px;margin-bottom:32px}
.herobtns{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:44px}
.herostat{display:flex;gap:40px;flex-wrap:wrap}
.herostat div{color:var(--mut);font-size:.98rem}
.herostat b{color:var(--txt);font-size:1.6rem;font-weight:800;display:block}

/* strip */
.strip{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:20px 0}
.stripin{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.stripin>span{color:var(--mut);font-size:.85rem;white-space:nowrap}
.chips{display:flex;gap:8px;flex-wrap:wrap}
.chip{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:5px 12px;font-size:.82rem;color:#c3ccdd}

/* sections */
.sec{padding:76px 0}
.sec.alt{background:var(--bg2)}
.sec h2{font-size:clamp(1.6rem,3.6vw,2.4rem);font-weight:800;margin-bottom:12px;text-align:center}
.secsub{color:var(--mut);font-size:1.1rem;max-width:720px;margin:0 auto 44px;text-align:center}

/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
@media(max-width:800px){.steps{grid-template-columns:1fr}}
.step{background:var(--panel);border:1px solid var(--line);border-radius:var(--rad);padding:30px}
.step .num{width:40px;height:40px;border-radius:11px;background:rgba(79,140,255,.14);color:var(--ac);font-weight:800;font-size:1.2rem;display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.step h3{font-size:1.25rem;margin-bottom:10px}
.step p{color:#c3ccdd;font-size:.98rem}

/* feature grid */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-bottom:32px}
@media(max-width:800px){.grid3{grid-template-columns:1fr}}
.fcard{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:24px}
.fcard h4{font-size:1.1rem;margin-bottom:8px}
.fcard p{color:#c3ccdd;font-size:.95rem}
.protokol{background:linear-gradient(150deg,rgba(79,140,255,.1),rgba(125,211,168,.06));border:1px solid rgba(79,140,255,.28);border-radius:var(--rad);padding:28px;text-align:center}
.ptag{display:inline-block;font-weight:800;color:var(--ac);font-size:1.05rem;margin-bottom:8px}
.protokol p{color:#c3ccdd}

/* comparison table */
.tablewrap{overflow-x:auto}
.cmp{width:100%;border-collapse:collapse;min-width:640px;background:var(--panel);border:1px solid var(--line);border-radius:var(--rad);overflow:hidden}
.cmp th,.cmp td{padding:15px 18px;text-align:left;border-bottom:1px solid var(--line);font-size:.96rem}
.cmp th{color:var(--mut);font-weight:600;font-size:.85rem}
.cmp td:first-child{color:#c3ccdd;font-weight:500}
.cmp .me{background:rgba(79,140,255,.08);color:var(--txt);font-weight:700}
.cmp th.me{color:var(--ac);font-size:1.05rem}

/* pricing */
.pgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:start}
@media(max-width:860px){.pgrid{grid-template-columns:1fr}}
.pcard{background:var(--panel);border:1px solid var(--line);border-radius:var(--rad);padding:30px;position:relative}
.pcard.feat{border-color:var(--ac);box-shadow:0 0 0 1px var(--ac),0 20px 60px -20px rgba(79,140,255,.4)}
.ptop{position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:var(--ac);color:#fff;font-size:.78rem;font-weight:800;padding:5px 16px;border-radius:12px;white-space:nowrap}
.pname{font-size:1.2rem;font-weight:800;margin-bottom:6px}
.pdesc{color:var(--mut);font-size:.92rem;margin-bottom:18px;min-height:42px}
.price{font-size:1.9rem;font-weight:800;margin-bottom:20px}
.price span{font-size:.85rem;color:var(--mut);font-weight:500}
.pcard ul{list-style:none;margin-bottom:24px}
.pcard li{padding:7px 0 7px 26px;position:relative;font-size:.94rem;color:#c3ccdd;border-bottom:1px solid var(--line)}
.pcard li::before{content:"✓";position:absolute;left:0;color:var(--ac2);font-weight:800}

/* form */
.form{background:var(--panel);border:1px solid var(--line);border-radius:var(--rad);padding:30px}
.frow{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media(max-width:600px){.frow{grid-template-columns:1fr}}
.form label{display:block;margin-bottom:16px;font-size:.9rem;color:var(--mut);font-weight:500}
.form input{width:100%;margin-top:6px;padding:12px 14px;border-radius:10px;border:1px solid var(--line2);background:var(--bg);color:var(--txt);font-size:1rem}
.form input:focus{outline:none;border-color:var(--ac)}
.formmsg{display:none;margin-top:16px;padding:16px;border-radius:12px;font-weight:600;text-align:center}
.formmsg.ok{background:rgba(125,211,168,.12);color:var(--ac2);border:1px solid rgba(125,211,168,.3)}
.formmsg.err{background:rgba(255,107,107,.12);color:#ff6b6b;border:1px solid rgba(255,107,107,.3)}

/* faq */
.faq{max-width:760px;margin:0 auto}
.faq details{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:18px 22px;margin-bottom:12px}
.faq summary{cursor:pointer;font-weight:600;font-size:1.05rem;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";float:right;color:var(--ac);font-weight:800}
.faq details[open] summary::after{content:"−"}
.faq p{color:#c3ccdd;margin-top:12px;font-size:.96rem}

/* cta final */
.cta-final{padding:80px 0;background:radial-gradient(900px 400px at 50% 120%,rgba(79,140,255,.18),transparent 70%);border-top:1px solid var(--line)}
.cta-final h2{font-size:clamp(1.6rem,4vw,2.6rem);font-weight:800;margin-bottom:28px}

/* footer */
.foot{border-top:1px solid var(--line);padding:44px 0 28px;background:var(--bg2)}
.footin{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;margin-bottom:24px}
.footin p{max-width:360px;margin-top:8px;font-size:.9rem}
.footai{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.footai a{background:var(--panel);border:1px solid var(--line);padding:7px 14px;border-radius:9px;font-size:.88rem;color:#c3ccdd}
.footai a:hover{border-color:var(--ac);color:var(--txt)}
.copyr{font-size:.82rem;text-align:center;padding-top:16px;border-top:1px solid var(--line)}