:root{
  --bg: #0a0e1a;
  --bg-alt: #0f1423;
  --card: #141a2e;
  --card-hover: #1a2137;
  --border: #1f2744;
  --text: #e6ebff;
  --muted: #8a93b2;
  --primary: #6366f1;
  --primary-2: #a855f7;
  --accent: #22d3ee;
  --success: #22c55e;
  --radius: 14px;
  --radius-lg: 20px;
  --container: 1200px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;overflow-x:hidden}
body{
  font-family:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  padding-top:72px;  /* reserve space for fixed header */
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}

.container{max-width:var(--container);margin:0 auto;padding:0 24px}

/* ============ HEADER ============ */
.header{
  position:fixed;
  top:0;
  left:0;
  right:0;
  z-index:100;
  backdrop-filter:blur(12px);
  background:rgba(10,14,26,.85);
  border-bottom:1px solid var(--border);
}
.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:72px;
  gap:24px;
}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:700;
  font-size:20px;
}
.logo b{color:var(--primary)}
.logo-mark{
  width:32px;height:32px;
  border-radius:9px;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  box-shadow:0 8px 24px rgba(99,102,241,.35);
  position:relative;
}
.logo-mark::after{
  content:"";
  position:absolute;
  inset:6px;
  border-radius:5px;
  border:2px solid rgba(255,255,255,.6);
  border-bottom:none;
  border-right:none;
}
.nav-links{display:flex;align-items:center;gap:22px}
.nav-links a{color:var(--muted);font-size:15px;font-weight:500;transition:color .2s;white-space:nowrap}
.nav-links a:hover{color:var(--text)}
.nav-ai{
  color:#fff !important;
  padding:6px 12px;
  border-radius:8px;
  font-weight:700;
  font-size:13.5px !important;
  background:linear-gradient(135deg,#7c3aed,#22d3ee);
  box-shadow:0 6px 16px rgba(124,58,237,.25);
  transition:transform .1s, box-shadow .15s;
}
.nav-ai:hover{color:#fff !important;transform:translateY(-1px);box-shadow:0 10px 22px rgba(124,58,237,.4)}
.lang-switch{
  display:flex;
  align-items:center;
  gap:6px;
  padding:6px 10px;
  border:1px solid var(--border);
  border-radius:8px;
  font-size:13px;
  font-weight:600;
}
.lang-switch a{color:var(--muted);transition:color .2s}
.lang-switch a:hover{color:var(--text)}
.lang-switch a.active{color:var(--text)}
.lang-switch span{color:var(--border)}
.burger{display:none;flex-direction:column;gap:4px}
.burger span{display:block;width:24px;height:2px;background:var(--text);border-radius:2px}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  border-radius:10px;
  font-weight:600;
  font-size:15px;
  transition:transform .2s, box-shadow .2s, background .2s;
  cursor:pointer;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  color:#fff;
  box-shadow:0 8px 24px rgba(99,102,241,.35);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(99,102,241,.5)}
.btn-ghost{
  background:rgba(255,255,255,.04);
  color:var(--text);
  border:1px solid var(--border);
}
.btn-ghost:hover{background:rgba(255,255,255,.08);border-color:var(--primary)}
.w-full{width:100%}

/* ============ HERO ============ */
.hero{
  position:relative;
  padding:80px 0 100px;
  overflow:hidden;
}
.bg-grid{
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(99,102,241,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(99,102,241,.06) 1px,transparent 1px);
  background-size:50px 50px;
  mask-image:radial-gradient(ellipse at center,#000 30%,transparent 70%);
}
.bg-glow{
  position:absolute;
  top:-200px;
  left:50%;
  transform:translateX(-50%);
  width:900px;
  height:900px;
  background:radial-gradient(circle,rgba(99,102,241,.25),transparent 60%);
  pointer-events:none;
}
.hero-inner{
  position:relative;
  display:grid;
  grid-template-columns:1.2fr 1fr;
  gap:60px;
  align-items:center;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 16px;
  background:rgba(34,197,94,.1);
  border:1px solid rgba(34,197,94,.3);
  border-radius:100px;
  font-size:13px;
  color:#86efac;
  margin-bottom:24px;
}
.hero h1{
  font-size:56px;
  line-height:1.1;
  font-weight:800;
  letter-spacing:-.02em;
  margin-bottom:24px;
}
.gradient-text{
  background:linear-gradient(135deg,var(--primary),var(--accent));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.lead{
  font-size:18px;
  color:var(--muted);
  max-width:560px;
  margin-bottom:36px;
}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:48px}
.hero-stats{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
  max-width:600px;
}
.hero-stats div{
  padding:16px 0;
  border-top:1px solid var(--border);
}
.hero-stats b{
  display:block;
  font-size:28px;
  font-weight:700;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-stats span{font-size:13px;color:var(--muted)}

/* Server rack */
.hero-visual{display:flex;justify-content:center}
.server-rack{
  display:flex;
  flex-direction:column;
  gap:10px;
  padding:18px;
  background:linear-gradient(180deg,#0c1124,#14192e);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  box-shadow:0 30px 80px rgba(0,0,0,.5), inset 0 1px 0 rgba(255,255,255,.05);
  width:100%;
  max-width:380px;
}
.server-unit{
  display:flex;
  align-items:center;
  gap:10px;
  padding:14px 16px;
  background:rgba(255,255,255,.02);
  border:1px solid var(--border);
  border-radius:10px;
  font-family:'SF Mono',Menlo,monospace;
  font-size:13px;
  color:var(--muted);
}
.server-unit.highlight{
  background:linear-gradient(90deg,rgba(99,102,241,.15),rgba(168,85,247,.1));
  border-color:rgba(99,102,241,.5);
  color:var(--text);
}
.server-unit.highlight b{color:#86efac}
.led{
  width:8px;height:8px;
  border-radius:50%;
  background:#64748b;
  box-shadow:0 0 6px currentColor;
}
.led.g{background:var(--success);color:var(--success);animation:pulse 2s infinite}
@keyframes pulse{
  0%,100%{opacity:1}
  50%{opacity:.4}
}

/* ============ SECTIONS ============ */
.section{padding:100px 0}
.section-alt{background:var(--bg-alt);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.section-head{text-align:center;max-width:680px;margin:0 auto 60px}
.section-head h2{
  font-size:42px;
  font-weight:800;
  letter-spacing:-.02em;
  margin-bottom:16px;
}
.section-head p{font-size:17px;color:var(--muted)}

/* Grids */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}

/* Cards */
.card{
  padding:32px 28px;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  transition:transform .3s, border-color .3s, background .3s;
}
.card:hover{
  transform:translateY(-4px);
  background:var(--card-hover);
  border-color:var(--primary);
}
.card-icon{
  width:52px;height:52px;
  border-radius:12px;
  background:linear-gradient(135deg,rgba(99,102,241,.2),rgba(168,85,247,.15));
  border:1px solid rgba(99,102,241,.3);
  display:flex;align-items:center;justify-content:center;
  font-size:24px;
  margin-bottom:20px;
}
.card-icon svg{width:26px;height:26px;stroke:#a78bfa;stroke-width:2;fill:none;stroke-linecap:round;stroke-linejoin:round}
.card:hover .card-icon svg,.addon:hover .card-icon svg{stroke:#c4b5fd}
.ai-benefit-icon svg{width:22px;height:22px;stroke:#fff;stroke-width:2;fill:none;stroke-linecap:round;stroke-linejoin:round}
.contact-list li svg{width:18px;height:18px;stroke:#a78bfa;stroke-width:2;fill:none;stroke-linecap:round;stroke-linejoin:round;vertical-align:-4px;margin-right:8px}
.ai-kicker svg{width:14px;height:14px;stroke:currentColor;stroke-width:2;fill:none;stroke-linecap:round;stroke-linejoin:round;vertical-align:-2px;margin-right:4px}
.ai-cta h3 svg{width:22px;height:22px;stroke:#34d399;stroke-width:2;fill:none;stroke-linecap:round;stroke-linejoin:round;vertical-align:-5px;margin-right:6px}
.hero-actions .btn svg{width:18px;height:18px;stroke:currentColor;stroke-width:2;fill:none;stroke-linecap:round;stroke-linejoin:round;vertical-align:-3px;margin-right:6px}
.nav-ai svg{width:16px;height:16px;stroke:currentColor;stroke-width:2;fill:none;stroke-linecap:round;stroke-linejoin:round;vertical-align:-3px;margin-right:4px}
.card h3{font-size:19px;font-weight:700;margin-bottom:10px}
.card p{font-size:14px;color:var(--muted)}

/* Features */
.feature{
  padding:32px 28px;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  position:relative;
}
.feature-num{
  font-size:14px;
  font-weight:700;
  color:var(--primary);
  margin-bottom:14px;
  letter-spacing:.1em;
}
.feature h4{font-size:19px;font-weight:700;margin-bottom:10px}
.feature p{font-size:14px;color:var(--muted)}

/* ============ PRICING ============ */
.tabs{
  display:flex;
  justify-content:center;
  gap:8px;
  padding:6px;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:14px;
  max-width:460px;
  margin:0 auto 50px;
}
.tab{
  flex:1;
  padding:12px 20px;
  border-radius:10px;
  font-size:14px;
  font-weight:600;
  color:var(--muted);
  transition:all .2s;
}
.tab.active{
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  color:#fff;
  box-shadow:0 4px 12px rgba(99,102,241,.35);
}
.tab-content{display:none}
.tab-content.active{display:block;animation:fadeIn .4s ease}
@keyframes fadeIn{
  from{opacity:0;transform:translateY(10px)}
  to{opacity:1;transform:translateY(0)}
}

.pricing .plan{
  padding:32px 28px;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  display:flex;
  flex-direction:column;
  position:relative;
  transition:transform .3s, border-color .3s;
}
.pricing .plan:hover{transform:translateY(-4px);border-color:var(--primary)}
.plan.popular{
  border-color:var(--primary);
  background:linear-gradient(180deg,rgba(99,102,241,.08),var(--card));
  box-shadow:0 20px 60px rgba(99,102,241,.15);
}
.plan-badge{
  position:absolute;
  top:-12px;
  left:50%;
  transform:translateX(-50%);
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  color:#fff;
  font-size:12px;
  font-weight:600;
  padding:6px 14px;
  border-radius:100px;
  text-transform:uppercase;
  letter-spacing:.05em;
}
.plan-name{
  font-size:14px;
  color:var(--muted);
  text-transform:uppercase;
  letter-spacing:.1em;
  margin-bottom:10px;
}
.plan-price{
  margin-bottom:24px;
  color:var(--muted);
  font-size:14px;
}
.plan-price b{
  font-size:40px;
  font-weight:800;
  color:var(--text);
  margin-right:4px;
}
.plan ul{list-style:none;flex:1;margin-bottom:28px}
.plan li{
  padding:10px 0;
  font-size:14px;
  color:var(--muted);
  border-bottom:1px solid var(--border);
  display:flex;
  align-items:center;
  gap:10px;
}
.plan li::before{
  content:"✓";
  color:var(--success);
  font-weight:700;
}
.plan li:last-child{border-bottom:none}

/* Индивидуальный план */
.plan.custom{
  background:linear-gradient(180deg,rgba(168,85,247,.1),var(--card));
  border-color:rgba(168,85,247,.4);
}
.custom-price b{
  font-size:22px !important;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}

/* ============ ADDONS ============ */
.addons{gap:20px}
.addon{
  padding:26px 22px;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  transition:transform .3s, border-color .3s;
}
.addon:hover{transform:translateY(-4px);border-color:var(--primary)}
.addon .card-icon{
  width:44px;height:44px;
  font-size:20px;
  margin-bottom:16px;
}
.addon h4{font-size:16px;font-weight:700;margin-bottom:6px}
.addon p{font-size:13px;color:var(--muted)}
.addon-price{
  font-size:14px !important;
  color:var(--text) !important;
  margin-bottom:8px !important;
}
.addon-price b{
  font-size:22px;
  font-weight:800;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  margin-right:4px;
}

/* ============ PAYMENT BLOCK ============ */
.payment-inner{
  display:grid;
  grid-template-columns:1.3fr 1fr;
  gap:60px;
  align-items:center;
}
.payment-inner h2{
  font-size:38px;
  font-weight:800;
  letter-spacing:-.02em;
  margin:20px 0 18px;
}
.payment-nets{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:14px;
  margin-top:24px;
}
.pay-net{
  padding:18px 16px;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:12px;
  text-align:center;
  transition:border-color .2s;
}
.pay-net:hover{border-color:var(--primary)}
.pay-net b{
  display:block;
  font-size:16px;
  color:var(--text);
  margin-bottom:4px;
}
.pay-net span{font-size:12px;color:var(--muted)}

.payment-card{
  padding:40px 32px;
  background:linear-gradient(180deg,rgba(99,102,241,.15),rgba(168,85,247,.08));
  border:1px solid rgba(99,102,241,.3);
  border-radius:var(--radius-lg);
  text-align:center;
  box-shadow:0 30px 80px rgba(99,102,241,.15);
}
.usdt-mark{
  width:80px;height:80px;
  margin:0 auto 20px;
  border-radius:50%;
  background:linear-gradient(135deg,#26a17b,#1a8a66);
  color:#fff;
  font-size:44px;
  font-weight:800;
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:0 12px 32px rgba(38,161,123,.4);
}
.usdt-title{
  font-size:22px;
  font-weight:700;
  margin-bottom:6px;
}
.usdt-desc{
  font-size:14px;
  color:var(--muted);
  margin-bottom:24px;
}
.usdt-features{
  list-style:none;
  text-align:left;
  padding:20px 0 0;
  border-top:1px solid var(--border);
}
.usdt-features li{
  padding:8px 0 8px 26px;
  font-size:14px;
  color:var(--muted);
  position:relative;
}
.usdt-features li::before{
  content:"✓";
  position:absolute;
  left:0;
  top:8px;
  color:var(--success);
  font-weight:700;
}

/* Location extras */
.loc-extra{
  font-size:12px !important;
  color:var(--primary) !important;
  margin-top:8px;
}

/* ============ LOCATIONS ============ */
.loc-card{
  padding:28px;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  text-align:center;
  transition:transform .3s, border-color .3s;
}
.loc-card:hover{transform:translateY(-4px);border-color:var(--primary)}
.loc-flag{font-size:40px;margin-bottom:12px}
.loc-card h4{font-size:18px;margin-bottom:4px}
.loc-card p{font-size:13px;color:var(--muted)}

/* ============ FAQ ============ */
.faq{max-width:800px;margin:0 auto}
.faq details{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .2s;
}
.faq details[open]{border-color:var(--primary)}
.faq summary{
  padding:22px 28px;
  font-size:16px;
  font-weight:600;
  cursor:pointer;
  list-style:none;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";
  font-size:24px;
  color:var(--primary);
  transition:transform .2s;
  line-height:1;
}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{padding:0 28px 22px;color:var(--muted);font-size:15px}

/* ============ CTA / CONTACT ============ */
.cta{background:var(--bg-alt);border-top:1px solid var(--border)}
.cta-inner{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:60px;
  align-items:start;
}
.cta-text h2{font-size:42px;font-weight:800;letter-spacing:-.02em;margin-bottom:20px}
.cta-text p{font-size:17px;color:var(--muted);margin-bottom:32px;max-width:480px}
.contact-list{list-style:none;display:flex;flex-direction:column;gap:14px}
.contact-list li{font-size:16px}
.contact-list a{color:var(--text);border-bottom:1px dashed var(--primary);transition:color .2s}
.contact-list a:hover{color:var(--primary)}

.cta-form{
  padding:40px;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
}
.cta-form h3{font-size:22px;margin-bottom:24px}
.cta-form label{display:block;margin-bottom:16px}
.cta-form span{
  display:block;
  font-size:13px;
  color:var(--muted);
  margin-bottom:6px;
}
.cta-form input,
.cta-form select,
.cta-form textarea{
  width:100%;
  padding:13px 16px;
  background:var(--bg);
  border:1px solid var(--border);
  border-radius:10px;
  color:var(--text);
  font-family:inherit;
  font-size:15px;
  resize:vertical;
  transition:border-color .2s;
}
.cta-form input:focus,
.cta-form select:focus,
.cta-form textarea:focus{
  outline:none;
  border-color:var(--primary);
}
.form-note{font-size:12px;color:var(--muted);margin-top:12px;text-align:center}
.form-success{
  display:none;
  margin-top:14px;
  padding:12px;
  background:rgba(34,197,94,.1);
  border:1px solid rgba(34,197,94,.3);
  border-radius:10px;
  color:#86efac;
  font-size:14px;
  text-align:center;
}
.form-success.show{display:block}

/* ============ FOOTER ============ */
.footer{
  background:#070a14;
  border-top:1px solid var(--border);
  padding:60px 0 30px;
}
.footer-inner{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:40px;
  margin-bottom:40px;
}
.footer h5{
  font-size:14px;
  text-transform:uppercase;
  letter-spacing:.08em;
  margin-bottom:18px;
  color:var(--text);
}
.footer a{
  display:block;
  font-size:14px;
  color:var(--muted);
  padding:6px 0;
  transition:color .2s;
}
.footer a:hover{color:var(--primary)}
.footer .logo{margin-bottom:14px}
.muted{color:var(--muted);font-size:14px;margin-top:8px}
.copyright{
  padding-top:24px;
  border-top:1px solid var(--border);
  color:var(--muted);
  font-size:13px;
  text-align:center;
}

/* ============ RESPONSIVE ============ */
.nav-mobile-cta,.nav-mobile-lang{display:none}
@media (max-width:1200px){
  .nav-links,.nav-cta,.lang-switch{display:none}
  .burger{display:flex}
  /* When burger toggles .nav-links to display:flex, surface the mobile CTA inside it */
  .nav-mobile-cta{
    display:block;margin-top:10px;padding:12px 18px;
    background:linear-gradient(135deg,#7c3aed,#22d3ee);
    color:#fff !important;font-weight:700;text-align:center;
    border-radius:10px;
    box-shadow:0 8px 22px rgba(124,58,237,.3);
  }
  .nav-mobile-lang{display:block;padding:10px 18px;color:var(--muted) !important;font-size:14px;text-align:center}
  .hero{padding:50px 0 70px}
  .hero-inner{grid-template-columns:1fr;gap:50px}
  .hero h1{font-size:38px}
  .lead{font-size:16px}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .section{padding:70px 0}
  .section-head h2,.cta-text h2{font-size:32px}
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
  .cta-inner{grid-template-columns:1fr;gap:40px}
  .payment-inner{grid-template-columns:1fr;gap:40px}
  .payment-inner h2{font-size:30px}
  .payment-nets{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:580px){
  .grid-3,.grid-4{grid-template-columns:1fr}
  .hero h1{font-size:32px}
  .section-head h2,.cta-text h2{font-size:26px}
  .footer-inner{grid-template-columns:1fr}
  .tabs{flex-direction:column}
  .cta-form{padding:28px 22px}
}