:root{
  --bg:#07070c; --bg2:#0d0d15; --card:#111118;
  --blue:#2f7df6; --blue2:#1e5fd0;
  --text:#f2f4f8; --muted:#9aa3b2; --line:#1e1e2a;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;line-height:1.6}
img{max-width:100%}

/* nav */
.nav{position:fixed;top:0;left:0;right:0;z-index:50;display:flex;align-items:center;justify-content:space-between;
  padding:14px 28px;background:rgba(7,7,12,.82);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text);font-weight:800;font-size:20px;letter-spacing:.5px}
.brand img{height:38px;border-radius:6px}
.links{display:flex;gap:26px}
.links a{color:var(--muted);text-decoration:none;font-size:15px;transition:color .2s}
.links a:hover{color:var(--blue)}
.menu-btn{display:none;background:none;border:1px solid var(--line);color:var(--text);border-radius:8px;padding:6px 12px;font-size:18px}
.lang-btn{background:none;border:1px solid var(--line);color:var(--text);border-radius:8px;padding:6px 12px;font-size:14px;cursor:pointer;margin-left:auto;margin-right:8px}
.lang-btn:hover{border-color:var(--accent)}

/* hero */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;justify-content:center;text-align:center;
  padding:120px 20px 80px;overflow:hidden}
.hero-glow{position:absolute;width:900px;height:900px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,125,246,.16),transparent 60%);top:-200px;left:50%;transform:translateX(-50%);pointer-events:none}
.hero-inner{position:relative;z-index:1;max-width:760px}
.hero-logo{width:min(420px,80vw);border-radius:14px;margin-bottom:34px;box-shadow:0 20px 80px rgba(47,125,246,.25)}
.hero h1{font-size:clamp(38px,7vw,72px);line-height:1.08;font-weight:900;letter-spacing:-1px;margin-bottom:20px}
.tagline{color:var(--muted);font-size:clamp(16px,2.4vw,20px);margin-bottom:36px}
.cta-row{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.btn{display:inline-block;padding:14px 34px;border-radius:10px;font-weight:700;text-decoration:none;font-size:16px;transition:transform .15s,box-shadow .15s}
.btn:hover{transform:translateY(-2px)}
.btn.primary{background:linear-gradient(135deg,var(--blue),var(--blue2));color:#fff;box-shadow:0 8px 30px rgba(47,125,246,.4)}
.btn.ghost{border:1px solid var(--line);color:var(--text)}
.btn.big{font-size:18px;padding:16px 44px}

/* strip */
.strip{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.strip div{background:var(--bg2);padding:28px 16px;text-align:center}
.strip strong{display:block;font-size:30px;color:var(--blue)}
.strip span{color:var(--muted);font-size:14px}
.fineprint{text-align:center;color:#5a6272;font-size:12px;padding:10px 20px}

/* sections */
.section{padding:90px 24px;max-width:1120px;margin:0 auto;text-align:center}
.section.dark{max-width:none;background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section.dark .story,.section.dark .grid{max-width:1120px;margin-left:auto;margin-right:auto}
.section h2{font-size:clamp(28px,4.5vw,44px);font-weight:900;letter-spacing:2px;margin-bottom:10px}
.section h2::after{content:"";display:block;width:64px;height:4px;background:var(--blue);margin:16px auto 0;border-radius:2px}
.sub{color:var(--muted);margin-bottom:44px;font-size:17px}

/* cards */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;text-align:left}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:32px 28px;position:relative;transition:transform .2s,border-color .2s}
.card:hover{transform:translateY(-6px);border-color:var(--blue)}
.card.featured{border:1px solid var(--blue);box-shadow:0 12px 50px rgba(47,125,246,.18)}
.card-badge{display:inline-block;font-size:12px;font-weight:800;letter-spacing:2px;color:var(--blue);border:1px solid var(--blue);border-radius:20px;padding:4px 14px;margin-bottom:18px}
.card-badge.hot{background:var(--blue);color:#fff}
.card h3{font-size:30px;font-weight:900;letter-spacing:1px;margin-bottom:10px}
.card-desc{color:var(--muted);font-size:15px;margin-bottom:20px;min-height:66px}
.card ul{list-style:none;margin-bottom:24px}
.card li{padding:7px 0;color:#c9d0dd;font-size:14px;border-bottom:1px dashed var(--line)}
.card li:last-child{border:none}
.card li::before{content:"▸ ";color:var(--blue)}
.price{font-size:22px;font-weight:800;color:var(--text)}

/* features */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;text-align:left}
.feat{background:var(--bg);border:1px solid var(--line);border-radius:14px;padding:26px 24px}
.feat h3{font-size:18px;margin-bottom:10px}
.feat p{color:var(--muted);font-size:14px}

/* specs */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:14px}
table{width:100%;border-collapse:collapse;font-size:15px;min-width:560px}
th,td{padding:15px 18px;text-align:left;border-bottom:1px solid var(--line)}
th{background:var(--bg2);color:var(--blue);font-weight:800;letter-spacing:1px}
tr:last-child td{border:none}
td:first-child{color:var(--muted)}

/* about */
.story{max-width:720px;margin:0 auto;color:#c9d0dd;font-size:18px;line-height:1.9}

/* contact */
#contact .btn{margin-top:10px}

/* footer */
footer{text-align:center;padding:50px 20px 40px;border-top:1px solid var(--line);color:#5a6272;font-size:13px}
footer img{height:52px;border-radius:8px;margin-bottom:16px}

@media(max-width:860px){
  .cards,.grid{grid-template-columns:1fr}
  .strip{grid-template-columns:repeat(2,1fr)}
  .links{display:none;position:absolute;top:66px;right:16px;flex-direction:column;background:var(--bg2);
    border:1px solid var(--line);border-radius:12px;padding:14px 22px;gap:14px}
  .links.open{display:flex}
  .menu-btn{display:block}
}

.chooser-title{text-align:center;color:var(--accent);font-size:20px;margin:8px 0 16px}
.chooser{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:28px}
.pick{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px}
.pick h4{margin:0 0 8px;color:var(--text);font-size:16px}
.pick p{margin:0;color:var(--muted);font-size:14px}
@media(max-width:720px){.chooser{grid-template-columns:1fr}}

.price{font-size:26px;font-weight:700;color:var(--accent);margin:4px 0 10px}
.contact-row{display:flex;align-items:center;justify-content:center;gap:16px;flex-wrap:wrap}
.email-addr{color:var(--muted);font-size:16px;letter-spacing:.3px}