:root{
  --bg:#05060a;
  --bg-soft:#080a12;
  --panel:rgba(13,17,28,.72);
  --line:rgba(0,229,255,.14);
  --line-soft:rgba(122,252,255,.06);
  --neon:#00e5ff;
  --neon-2:#7afcff;
  --text:#e7ecf4;
  --muted:#8b95ab;
  --radius:14px;
  --maxw:1140px;
  font-synthesis:none;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--text);
  font-family:"Segoe UI",system-ui,-apple-system,Helvetica,Arial,sans-serif;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 22px}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

/* spatial grid background */
.grid-bg{
  position:fixed;inset:0;z-index:-2;
  background:
    linear-gradient(var(--line-soft) 1px,transparent 1px) 0 0/64px 64px,
    linear-gradient(90deg,var(--line-soft) 1px,transparent 1px) 0 0/64px 64px,
    radial-gradient(circle at 70% 20%,rgba(0,229,255,.08),transparent 55%),
    radial-gradient(circle at 15% 80%,rgba(122,252,255,.05),transparent 50%),
    var(--bg);
}

/* header */
.site-header{
  position:sticky;top:0;z-index:50;
  backdrop-filter:blur(12px);
  background:rgba(5,6,10,.66);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px}
.brand-mark{
  width:16px;height:16px;border:1px solid var(--neon);
  transform:rotate(45deg);
  box-shadow:0 0 14px rgba(0,229,255,.5);
}
.brand-name{font-weight:700;letter-spacing:.28em;font-size:.95rem}
.nav{display:flex;gap:28px}
.nav a{color:var(--muted);font-size:.92rem;letter-spacing:.04em;transition:color .2s}
.nav a:hover{color:var(--neon)}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{width:24px;height:2px;background:var(--neon);transition:.25s}

/* buttons */
.btn{
  display:inline-block;padding:12px 22px;border-radius:10px;
  font-size:.92rem;letter-spacing:.04em;cursor:pointer;border:1px solid transparent;
  transition:transform .15s,box-shadow .25s,background .25s,color .2s;
}
.btn:hover{transform:translateY(-2px)}
.btn-primary{
  background:linear-gradient(120deg,var(--neon),var(--neon-2));
  color:#04121a;font-weight:600;
  box-shadow:0 0 22px rgba(0,229,255,.35);
}
.btn-primary:hover{box-shadow:0 0 34px rgba(0,229,255,.55)}
.btn-ghost{border:1px solid var(--line);color:var(--text);background:rgba(255,255,255,.02)}
.btn-ghost:hover{border-color:var(--neon);color:var(--neon)}

/* hero */
.hero{padding:90px 0 70px}
.hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:54px;align-items:center}
.eyebrow{
  color:var(--neon);font-size:.74rem;letter-spacing:.32em;text-transform:uppercase;
  margin-bottom:14px;
}
.hero h1{font-size:clamp(2.1rem,4.4vw,3.4rem);line-height:1.08;font-weight:700;letter-spacing:-.01em}
.lead{color:var(--muted);font-size:1.06rem;margin:20px 0 28px;max-width:38ch}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{list-style:none;display:flex;gap:34px;margin-top:42px;flex-wrap:wrap}
.hero-stats strong{display:block;font-size:1.7rem;color:var(--neon-2)}
.hero-stats span{color:var(--muted);font-size:.82rem}
.hero-media{position:relative}
.hero-media img{
  border-radius:var(--radius);border:1px solid var(--line);
  filter:grayscale(.25) contrast(1.05) brightness(.85);
  box-shadow:0 0 60px rgba(0,229,255,.12);
}
.hero-node{position:absolute;width:10px;height:10px;border-radius:50%;background:var(--neon);box-shadow:0 0 16px var(--neon);animation:pulse 3s infinite}
.hero-node.n1{top:14%;left:-6px}
.hero-node.n2{bottom:18%;right:-5px;animation-delay:1s;background:var(--neon-2)}
.hero-node.n3{top:48%;right:22%;animation-delay:2s}
@keyframes pulse{0%,100%{opacity:.4;transform:scale(.8)}50%{opacity:1;transform:scale(1.3)}}

/* sections */
.section{padding:74px 0}
.section-alt{background:linear-gradient(180deg,rgba(8,10,18,.6),transparent)}
.section-head{max-width:640px;margin:0 auto 46px;text-align:center}
.section-head h2{font-size:clamp(1.7rem,3vw,2.4rem);letter-spacing:-.01em}
.section-sub{color:var(--muted);margin-top:14px}

/* cards */
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 22px;transition:transform .2s,border-color .25s,box-shadow .25s;
}
.card:hover{transform:translateY(-5px);border-color:var(--neon);box-shadow:0 0 30px rgba(0,229,255,.18)}
.card-icon{font-size:1.5rem;color:var(--neon);margin-bottom:14px}
.card h3{font-size:1.06rem;margin-bottom:10px}
.card p{color:var(--muted);font-size:.92rem}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:46px}
.step{
  position:relative;padding:24px 20px;border:1px solid var(--line);border-radius:var(--radius);
  background:rgba(8,10,18,.5);
}
.step-num{font-size:2rem;font-weight:700;color:rgba(0,229,255,.35);display:block;margin-bottom:10px}
.step h3{font-size:1.02rem;margin-bottom:8px}
.step p{color:var(--muted);font-size:.9rem}
.media-band img{
  border-radius:var(--radius);border:1px solid var(--line);width:100%;
  filter:grayscale(.3) contrast(1.05) brightness(.82);
}

/* pricing */
.pricing{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:start}
.plan{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 26px;position:relative;transition:transform .2s,border-color .25s;
}
.plan:hover{transform:translateY(-5px);border-color:var(--neon-2)}
.plan-featured{border-color:var(--neon);box-shadow:0 0 40px rgba(0,229,255,.2)}
.plan-badge{
  position:absolute;top:-12px;left:26px;background:linear-gradient(120deg,var(--neon),var(--neon-2));
  color:#04121a;font-size:.7rem;font-weight:700;letter-spacing:.1em;padding:5px 12px;border-radius:20px;
}
.plan h3{letter-spacing:.05em;margin-bottom:12px}
.price{font-size:2.1rem;font-weight:700;color:var(--neon-2);margin-bottom:18px}
.price span{font-size:.85rem;color:var(--muted);font-weight:400}
.plan ul{list-style:none;margin-bottom:24px}
.plan li{padding:8px 0 8px 22px;position:relative;color:var(--muted);font-size:.92rem;border-bottom:1px solid var(--line-soft)}
.plan li::before{content:"›";position:absolute;left:4px;color:var(--neon)}
.plan .btn{width:100%;text-align:center}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.contact-info h2{margin:8px 0 16px}
.contact-info p{color:var(--muted);margin-bottom:24px}
.contact-list{list-style:none;display:flex;flex-direction:column;gap:16px}
.contact-list li{display:flex;flex-direction:column;border-left:2px solid var(--line);padding-left:14px}
.contact-list span{color:var(--neon);font-size:.74rem;letter-spacing:.2em;text-transform:uppercase}
.contact-list a:hover{color:var(--neon-2)}
.contact-form{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:30px}
.field{margin-bottom:16px}
.field label{display:block;font-size:.82rem;color:var(--muted);margin-bottom:6px;letter-spacing:.03em}
.field input,.field select,.field textarea{
  width:100%;background:rgba(5,6,10,.7);border:1px solid var(--line);border-radius:9px;
  padding:11px 13px;color:var(--text);font-family:inherit;font-size:.95rem;transition:border-color .2s,box-shadow .2s;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--neon);box-shadow:0 0 0 3px rgba(0,229,255,.12);
}
.check{display:flex;gap:10px;align-items:flex-start;font-size:.85rem;color:var(--muted);margin-bottom:18px}
.check input{margin-top:4px;accent-color:var(--neon)}
.check a{color:var(--neon)}
.form-status{margin-top:12px;font-size:.88rem;min-height:1.2em}
.form-status.ok{color:var(--neon-2)}
.form-status.err{color:#ff7a90}

/* footer */
.site-footer{border-top:1px solid var(--line);padding:48px 0 26px;margin-top:40px;background:var(--bg-soft)}
.footer-grid{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap;margin-bottom:28px}
.footer-note{color:var(--muted);font-size:.86rem;margin-top:8px;max-width:38ch}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{color:var(--muted);font-size:.88rem;transition:color .2s}
.footer-links a:hover{color:var(--neon)}
.footer-bottom{border-top:1px solid var(--line-soft);padding-top:18px;color:var(--muted);font-size:.8rem}

/* cookie banner */
.cookie-banner{
  position:fixed;left:0;right:0;bottom:0;z-index:80;
  display:none;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  background:rgba(8,10,18,.95);border-top:1px solid var(--neon);
  padding:16px 22px;backdrop-filter:blur(12px);
}
.cookie-banner.show{display:flex}
.cookie-banner p{font-size:.86rem;color:var(--muted);max-width:62ch}
.cookie-banner a{color:var(--neon)}
.cookie-actions{display:flex;gap:10px}
.cookie-actions .btn{padding:9px 18px;font-size:.85rem}

/* legal pages */
.legal{padding:70px 0;max-width:820px}
.legal h1{font-size:2rem;margin-bottom:8px}
.legal .updated{color:var(--muted);font-size:.85rem;margin-bottom:30px}
.legal h2{font-size:1.25rem;margin:30px 0 12px;color:var(--neon-2)}
.legal p,.legal li{color:var(--muted);margin-bottom:10px}
.legal ul{padding-left:22px;margin-bottom:10px}
.legal a{color:var(--neon)}
.back-link{display:inline-block;margin-top:30px;color:var(--neon)}

/* responsive */
@media(max-width:900px){
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .hero-media{order:-1}
  .cards,.steps{grid-template-columns:repeat(2,1fr)}
  .pricing{grid-template-columns:1fr;max-width:460px;margin:0 auto}
  .contact-grid{grid-template-columns:1fr;gap:32px}
}
@media(max-width:640px){
  .nav{
    position:absolute;top:64px;left:0;right:0;flex-direction:column;gap:0;
    background:rgba(5,6,10,.97);border-bottom:1px solid var(--line);
    max-height:0;overflow:hidden;transition:max-height .3s;
  }
  .nav.open{max-height:280px}
  .nav a{padding:14px 22px;border-top:1px solid var(--line-soft)}
  .nav-toggle{display:flex}
  .cards,.steps{grid-template-columns:1fr}
  .hero-stats{gap:24px}
  .cookie-banner{flex-direction:column;align-items:flex-start}
}