:root{
  --navy:#0d2749;
  --navy-deep:#081a33;
  --ink:#04070d;
  --cyan:#07b1f7;
  --paper:#f6f8fb;
  --slate:#5a6b80;
  --line:rgba(255,255,255,0.10);
  --line-light:rgba(13,39,73,0.12);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'Inter',sans-serif;
  color:#1c2733;
  background:var(--paper);
  line-height:1.6;
}
h1,h2,h3,h4{
  font-family:'Space Grotesk',sans-serif;
  margin:0;
  color:var(--ink);
  letter-spacing:-0.01em;
}
a{text-decoration:none;color:inherit;}
img{max-width:100%;}
.eyebrow{
  font-family:'IBM Plex Mono',monospace;
  font-size:12px;
  letter-spacing:0.14em;
  text-transform:uppercase;
  color:var(--cyan);
  display:flex;
  align-items:center;
  gap:8px;
}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--cyan);}
.wrap{max-width:1140px;margin:0 auto;padding:0 24px;}

/* Header */
header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,0.96);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line-light);
  box-shadow:0 1px 0 rgba(13,39,73,0.03);
}
.nav-row{display:flex;align-items:center;justify-content:space-between;padding:14px 0;}
.nav-row img{height:48px;width:auto;display:block;}
nav ul{display:flex;gap:26px;list-style:none;margin:0;padding:0;align-items:center;}
nav a{color:var(--navy);font-size:14px;font-weight:500;transition:color .2s;}
nav a:hover, nav a.active{color:var(--cyan);}
.has-drop{position:relative;}
.drop{
  position:absolute;top:100%;left:0;margin-top:14px;background:#fff;border:1px solid var(--line-light);
  box-shadow:0 12px 28px rgba(13,39,73,0.12);
  border-radius:10px;min-width:200px;padding:8px;display:none;
}
.has-drop:hover .drop{display:block;}
.drop a{display:block;padding:9px 12px;border-radius:6px;font-size:13.5px;color:var(--navy);}
.drop a:hover{background:#eef2f7;color:var(--cyan);}
.call-btn{
  font-family:'IBM Plex Mono',monospace;
  font-size:13px;color:var(--navy);
  border:1px solid var(--line-light);
  padding:9px 16px;border-radius:100px;
  white-space:nowrap;
}
.call-btn:hover{border-color:var(--cyan);color:var(--cyan);}
.menu-toggle{display:none;background:none;border:1px solid var(--line-light);color:var(--navy);padding:8px 12px;border-radius:8px;font-size:14px;}

/* Buttons */
.btn{
  font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:14px;
  padding:14px 26px;border-radius:100px;display:inline-block;transition:all .2s;border:none;cursor:pointer;
}
.btn-primary{background:var(--cyan);color:var(--ink);}
.btn-primary:hover{background:#3ec4ff;}
.btn-ghost{border:1px solid var(--line);color:#fff;}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan);}
.btn-navy{background:var(--navy);color:#fff;}
.btn-navy:hover{background:var(--navy-deep);}

/* Hero (home) */
.hero{
  background:radial-gradient(120% 140% at 15% 0%, var(--navy) 0%, var(--navy-deep) 45%, var(--ink) 100%);
  color:#fff;
  padding:96px 0 120px;
  position:relative;
  overflow:hidden;
  border-bottom:none;
}
.hero-grid{display:grid;grid-template-columns:1.1fr 0.9fr;gap:48px;align-items:center;position:relative;}
.hero h1{color:#fff;font-size:46px;line-height:1.12;margin:18px 0 22px;font-weight:700;}
.hero p{color:#aebdd0;font-size:17px;max-width:480px;margin-bottom:34px;}
.cta-row{display:flex;gap:14px;flex-wrap:wrap;}
.hero .btn-ghost{border:1px solid var(--line);color:#fff;}
.hero .btn-ghost:hover{border-color:var(--cyan);color:var(--cyan);}

/* Page header (inner pages) */
.page-header{
  background:radial-gradient(120% 160% at 85% 0%, var(--navy) 0%, var(--navy-deep) 50%, var(--ink) 100%);
  color:#fff;padding:64px 0 52px;
}
.page-header h1{color:#fff;font-size:36px;margin:14px 0 12px;}
.page-header p{color:#aebdd0 !important;}
.breadcrumb{font-family:'IBM Plex Mono',monospace;font-size:13px;color:#9fb3c8;display:flex;gap:8px;align-items:center;}
.breadcrumb a{color:#9fb3c8;}
.breadcrumb a:hover{color:var(--cyan);}
.breadcrumb span{color:var(--cyan);}

/* network diagram */
.net{width:100%;height:auto;}
.net-line{stroke:rgba(7,177,247,0.35);stroke-width:1.5;fill:none;}
.net-pulse{stroke:var(--cyan);stroke-width:2;fill:none;stroke-dasharray:6 340;stroke-dashoffset:0;animation:travel 3.2s linear infinite;}
.net-node{fill:var(--navy-deep);stroke:rgba(255,255,255,0.25);stroke-width:1;}
.net-core{fill:var(--cyan);}
.net-label{font-family:'IBM Plex Mono',monospace;font-size:10.5px;fill:#9fb3c8;letter-spacing:.04em;}
.net-core-label{font-family:'Space Grotesk',sans-serif;font-size:13px;font-weight:700;fill:var(--ink);}
@keyframes travel{to{stroke-dashoffset:-346;}}
@media (prefers-reduced-motion: reduce){.net-pulse{animation:none;}}

/* Sections */
section{padding:88px 0;}
.section-head{max-width:640px;margin-bottom:48px;}
.section-head h2{font-size:32px;margin-top:14px;}
.muted-bg{background:#eef2f7;}

/* Intro / welcome */
.intro-grid{display:grid;grid-template-columns:0.85fr 1.15fr;gap:56px;align-items:center;}
.intro-imgs{position:relative;}
.intro-imgs img{border-radius:14px;display:block;}
.intro-imgs .img-a{width:78%;}
.intro-imgs .img-b{width:62%;position:absolute;right:0;bottom:-14%;border:6px solid var(--paper);}
.intro-copy p{color:var(--slate);font-size:16px;margin:18px 0 28px;max-width:520px;}

/* Services grid */
.services-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.service-card{background:#fff;border:1px solid #e2e8f0;border-radius:14px;padding:28px 22px;transition:transform .2s, border-color .2s, box-shadow .2s;box-shadow:0 2px 10px rgba(13,39,73,0.04);}
.service-card:hover{transform:translateY(-4px);border-color:var(--cyan);box-shadow:0 16px 32px rgba(13,39,73,0.10);}
.service-num{font-family:'IBM Plex Mono',monospace;font-size:12px;color:var(--cyan);}
.service-card h4{font-size:18px;margin:14px 0 10px;}
.service-card p{color:var(--slate);font-size:14px;margin:0 0 18px;}
.service-link{font-family:'IBM Plex Mono',monospace;font-size:12.5px;color:var(--navy);border-bottom:1px solid var(--cyan);padding-bottom:2px;}

/* About */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;}
.about-block{margin-bottom:26px;}
.about-block h4{font-size:15px;color:var(--cyan);font-family:'IBM Plex Mono',monospace;letter-spacing:.04em;text-transform:uppercase;margin-bottom:8px;}
.about-block p{color:var(--slate);font-size:15px;margin:0;}
.pillars{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.pillar{border-left:2px solid var(--cyan);padding-left:14px;}
.pillar b{display:block;font-family:'Space Grotesk',sans-serif;color:var(--ink);margin-bottom:4px;}
.pillar span{color:var(--slate);font-size:13.5px;}

/* Partners */
.partners-row{display:flex;align-items:center;justify-content:space-around;flex-wrap:wrap;gap:32px;}
.partners-row img{max-height:44px;width:auto;filter:grayscale(100%);opacity:.75;transition:opacity .2s, filter .2s;}
.partners-row img:hover{filter:none;opacity:1;}

/* Service detail page */
.service-detail-grid{display:grid;grid-template-columns:1fr 300px;gap:48px;align-items:start;}
.service-detail h2{font-size:28px;margin:14px 0 18px;}
.service-detail p{color:var(--slate);font-size:15.5px;margin:0 0 18px;}
.service-detail h3{font-size:17px;margin:26px 0 14px;color:var(--ink);}
.feature-item{display:flex;gap:14px;padding:16px 0;border-top:1px solid #e2e8f0;}
.feature-item:first-of-type{border-top:none;}
.feature-item .dot{width:8px;height:8px;border-radius:50%;background:var(--cyan);margin-top:8px;flex-shrink:0;}
.feature-item b{display:block;color:var(--ink);font-family:'Space Grotesk',sans-serif;margin-bottom:4px;}
.feature-item span{color:var(--slate);font-size:14.5px;}
.side-card{background:#fff;border:1px solid #e2e8f0;border-radius:14px;padding:24px;position:sticky;top:96px;box-shadow:0 2px 10px rgba(13,39,73,0.04);}
.side-card h5{font-family:'IBM Plex Mono',monospace;font-size:12px;color:var(--cyan);text-transform:uppercase;letter-spacing:.04em;margin-bottom:16px;}
.side-card ul{list-style:none;padding:0;margin:0 0 20px;display:flex;flex-direction:column;gap:10px;}
.side-card ul a{font-size:14px;color:var(--navy);display:flex;align-items:center;gap:8px;padding:8px 0;border-bottom:1px solid #eef2f7;}
.side-card ul a:hover, .side-card ul a.active{color:var(--cyan);}
.side-card ul li:last-child a{border-bottom:none;}

/* Contact */
.contact-section{background:var(--navy-deep);color:#fff;}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;}
.contact-card{background:rgba(255,255,255,0.04);border:1px solid var(--line);border-radius:14px;padding:24px;display:flex;gap:16px;align-items:flex-start;}
.contact-card .ico{width:38px;height:38px;border-radius:10px;background:rgba(7,177,247,0.15);color:var(--cyan);display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:16px;}
.contact-card h4{color:#fff;font-size:15px;margin-bottom:4px;}
.contact-card p, .contact-card a{color:#aebdd0;font-size:14px;}
.contact-card a:hover{color:var(--cyan);}

/* Contact form */
.contact-form-section{padding:88px 0;}
.form-card{background:#fff;border:1px solid #e2e8f0;border-radius:16px;padding:40px;box-shadow:0 2px 10px rgba(13,39,73,0.04);}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:18px;}
.form-field{display:flex;flex-direction:column;gap:8px;}
.form-field label{font-size:13px;font-weight:500;color:var(--ink);}
.form-field input, .form-field textarea{
  border:1px solid #d7dee6;border-radius:8px;padding:12px 14px;font-family:'Inter',sans-serif;font-size:14px;
  background:#fbfcfe;color:#1c2733;
}
.form-field input:focus, .form-field textarea:focus{outline:none;border-color:var(--cyan);}
.form-field.full{grid-column:1/-1;}
.map-embed{border-radius:14px;overflow:hidden;border:1px solid #e2e8f0;height:100%;min-height:340px;}
.map-embed iframe{width:100%;height:100%;min-height:340px;border:0;display:block;}

/* Footer */
footer{background:var(--ink);color:#8896a8;padding:56px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;margin-bottom:40px;}
.footer-grid h5{color:#fff;font-family:'IBM Plex Mono',monospace;font-size:12px;letter-spacing:.08em;text-transform:uppercase;margin-bottom:16px;}
.footer-grid ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px;}
.footer-grid a{font-size:14px;color:#8896a8;}
.footer-grid a:hover{color:var(--cyan);}
.footer-logo img{height:44px;margin-bottom:14px;}
.footer-logo p{font-size:14px;max-width:280px;}
.social-row{display:flex;gap:10px;margin-top:16px;}
.social-row a{width:34px;height:34px;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:14px;}
.social-row a:hover{border-color:var(--cyan);color:var(--cyan);}
.footer-bottom{border-top:1px solid var(--line);padding-top:22px;font-size:13px;text-align:center;}

@media (max-width:920px){
  nav, .call-btn-wrap{display:none;}
  .menu-toggle{display:block;}
  .hero-grid, .intro-grid, .about-grid, .contact-grid, .service-detail-grid, .form-row{grid-template-columns:1fr;}
  .hero{padding:56px 0 72px;}
  .hero h1{font-size:34px;}
  .services-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .intro-imgs{margin-bottom:40px;}
  .intro-imgs .img-b{position:static;width:60%;margin-top:14px;}
  .side-card{position:static;}
}
@media (max-width:560px){
  .services-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .pillars{grid-template-columns:1fr;}
}