/* ==========================================================================
   Nettrix Innovation Technologies — Design tokens
   Palette:  --navy (headings/header), --blue (primary), --blue-light (accent)
             --cyan (signature glow), --charcoal (secondary dark), --paper (bg)
   Type:     Space Grotesk (display), Inter (body), IBM Plex Mono (labels)
   Signature: rotating orbit-ring motif echoing the logo's circular swoosh
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Inter:wght@400;500;600;700&family=IBM+Plex+Mono:wght@500;600&display=swap');

:root{
  --navy:        #0F2A52;
  --blue:        #1E56A0;
  --blue-light:  #4F8FE0;
  --cyan:        #33C9E8;
  --charcoal:    #232833;
  --ink:         #10151C;
  --paper:       #F5F7FB;
  --card:        #FFFFFF;
  --line:        #E1E7F0;
  --muted:       #5C6678;

  --display: 'Space Grotesk', sans-serif;
  --body: 'Inter', sans-serif;
  --mono: 'IBM Plex Mono', monospace;

  --container: 1180px;
  --radius: 14px;
  --shadow: 0 20px 45px -20px rgba(15,42,82,0.28);
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  font-family: var(--body);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img{ max-width:100%; display:block; }
a{ color: inherit; text-decoration: none; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4{
  font-family: var(--display);
  color: var(--navy);
  margin: 0 0 .5em;
  line-height: 1.15;
  letter-spacing: -0.01em;
}
p{ margin: 0 0 1em; color: var(--charcoal); }
.container{
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}
section{ padding: 96px 0; }
@media (max-width: 720px){ section{ padding: 64px 0; } }

.eyebrow{
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--blue);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.eyebrow::before{
  content:'';
  width: 22px; height: 1px;
  background: var(--blue);
}

/* Buttons */
.btn{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 26px;
  border-radius: 999px;
  font-family: var(--body);
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform .25s ease, box-shadow .25s ease, background .25s ease, color .25s ease;
}
.btn:hover{ transform: translateY(-2px); }
.btn-primary{
  background: linear-gradient(135deg, var(--blue), var(--navy));
  color: #fff;
  box-shadow: 0 14px 30px -12px rgba(30,86,160,0.55);
}
.btn-primary:hover{ box-shadow: 0 18px 36px -12px rgba(30,86,160,0.7); }
.btn-ghost{
  background: transparent;
  color: var(--navy);
  border-color: var(--line);
}
.btn-ghost:hover{ border-color: var(--blue); color: var(--blue); }
.btn-light{
  background: #fff;
  color: var(--navy);
}

/* Header */
.site-header{
  position: sticky; top:0; z-index: 100;
  background: rgba(245,247,251,0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav{
  display:flex; align-items:center; justify-content:space-between;
  padding: 14px 0;
}
.nav-logo{ display:flex; align-items:center; gap:10px; }
.nav-logo img{ height: 40px; width:auto; }
.nav-links{ display:flex; gap: 34px; align-items:center; }
.nav-links a{
  font-size: 14.5px; font-weight: 600; color: var(--charcoal);
  position: relative; padding: 4px 0;
  transition: color .2s ease;
}
.nav-links a::after{
  content:''; position:absolute; left:0; bottom:-2px;
  width:0; height:2px; background: var(--blue);
  transition: width .25s ease;
}
.nav-links a:hover{ color: var(--navy); }
.nav-links a:hover::after, .nav-links a.active::after{ width:100%; }
.nav-links a.active{ color: var(--navy); }
.nav-cta{ display:flex; align-items:center; gap:18px; }
.nav-toggle{
  display:none; flex-direction:column; gap:5px; background:none; border:none; cursor:pointer; padding: 6px;
}
.nav-toggle span{ width:24px; height:2px; background: var(--navy); border-radius: 2px; }

@media (max-width: 900px){
  .nav-links{
    position: fixed; inset: 66px 0 0 0; height: 0; overflow:hidden;
    flex-direction: column; background: var(--paper);
    gap: 0; transition: height .3s ease;
    border-bottom: 1px solid var(--line);
  }
  .nav-links.open{ height: calc(100vh - 66px); overflow:auto; }
  .nav-links a{ padding: 18px 28px; width:100%; border-bottom: 1px solid var(--line); }
  .nav-links a::after{ display:none; }
  .nav-cta .btn-primary{ display:none; }
  .nav-toggle{ display:flex; }
}

/* Hero */
.hero{
  padding: 80px 0 60px;
  position: relative; overflow: hidden;
}
.hero .container{
  display:grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items:center;
}
.hero h1{ font-size: clamp(34px, 4.6vw, 56px); }
.hero .lead{ font-size: 17.5px; color: var(--muted); max-width: 46ch; }
.hero-actions{ display:flex; gap:16px; margin-top: 30px; flex-wrap:wrap; }
.hero-meta{
  display:flex; gap: 34px; margin-top: 46px; flex-wrap:wrap;
}
.hero-meta div{ font-family: var(--mono); }
.hero-meta strong{
  display:block; font-family: var(--display); font-size: 26px; color: var(--navy);
}
.hero-meta span{ font-size: 12px; color: var(--muted); letter-spacing: .04em; }

/* Orbit signature graphic */
.orbit-wrap{ position: relative; aspect-ratio: 1/1; max-width: 460px; margin: 0 auto; }
.orbit-wrap svg{ width:100%; height:100%; }
.orbit-ring{ transform-origin: 250px 250px; animation: spin 22s linear infinite; }
.orbit-ring.slow{ animation-duration: 34s; animation-direction: reverse; }
.orbit-dot{ animation: spin 22s linear infinite; transform-origin: 250px 250px; }
@keyframes spin{ to{ transform: rotate(360deg); } }
.orbit-core{
  position:absolute; inset:0; display:flex; align-items:center; justify-content:center;
  flex-direction:column; text-align:center;
}
.orbit-core img{ height: 64px; width:auto; }

@media (prefers-reduced-motion: reduce){
  .orbit-ring, .orbit-dot{ animation: none; }
}

@media (max-width: 900px){
  .hero .container{ grid-template-columns: 1fr; }
  .orbit-wrap{ max-width: 320px; order:-1; }
}

/* Section headers */
.section-head{ max-width: 640px; margin-bottom: 50px; }
.section-head.center{ margin-left:auto; margin-right:auto; text-align:center; }
.section-head p{ color: var(--muted); font-size: 16px; }

/* Cards / Grids */
.grid-3{ display:grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.grid-2{ display:grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }
@media (max-width: 900px){ .grid-3{ grid-template-columns: 1fr 1fr; } }
@media (max-width: 640px){ .grid-3, .grid-2{ grid-template-columns: 1fr; } }

.card{
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px;
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.card:hover{ transform: translateY(-6px); box-shadow: var(--shadow); border-color: transparent; }

.service-card .arc-icon{ margin-bottom: 18px; }
.service-card h3{ font-size: 20px; margin-bottom: 8px; }
.service-card p{ font-size: 14.5px; color: var(--muted); margin-bottom: 0; }

/* arc icon (signature motif reused as bullet/icon) */
.arc-icon svg{ width: 52px; height: 52px; }

/* Reveal on scroll */
.reveal{ opacity:0; transform: translateY(22px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in{ opacity:1; transform:none; }

/* Stats bar */
.stats-bar{
  background: linear-gradient(120deg, var(--navy), var(--blue));
  color:#fff; border-radius: var(--radius);
  padding: 40px 20px;
  display:grid; grid-template-columns: repeat(4,1fr);
  text-align:center;
}
.stats-bar div strong{ display:block; font-family: var(--display); font-size: 30px; }
.stats-bar div span{ font-family: var(--mono); font-size: 12px; opacity:.8; letter-spacing: .05em; }
@media (max-width: 720px){ .stats-bar{ grid-template-columns: 1fr 1fr; row-gap: 26px; } }

/* Orbit process (timeline) */
.process{
  display:grid; grid-template-columns: repeat(4, 1fr); gap: 0;
  position: relative;
  margin-top: 20px;
}
.process::before{
  content:''; position:absolute; top: 27px; left: 6%; right: 6%; height: 2px;
  background: repeating-linear-gradient(90deg, var(--line) 0 8px, transparent 8px 16px);
}
.process-step{ padding: 0 18px; position:relative; }
.process-step .arc-tick{
  width: 54px; height: 54px; border-radius: 50%;
  border: 2px solid var(--blue);
  display:flex; align-items:center; justify-content:center;
  font-family: var(--mono); font-size: 13px; color: var(--blue);
  background: var(--paper);
  margin-bottom: 20px; position:relative; z-index:1;
}
.process-step h4{ font-size: 16.5px; }
.process-step p{ font-size: 14px; color: var(--muted); }
@media (max-width: 900px){
  .process{ grid-template-columns: 1fr 1fr; row-gap: 34px; }
  .process::before{ display:none; }
}
@media (max-width: 560px){ .process{ grid-template-columns: 1fr; } }

/* CTA band */
.cta-band{
  background: var(--navy);
  border-radius: var(--radius);
  padding: 56px 44px;
  color: #fff;
  display:flex; align-items:center; justify-content:space-between; gap: 30px;
  flex-wrap: wrap;
  position: relative; overflow:hidden;
}
.cta-band h2{ color:#fff; margin-bottom: 8px; font-size: 28px; }
.cta-band p{ color: rgba(255,255,255,0.75); margin:0; }

/* Footer */
.site-footer{
  background: var(--charcoal); color: #C7CDD8; padding: 70px 0 26px;
}
.footer-grid{
  display:grid; grid-template-columns: 1.4fr 1fr 1fr 1.1fr; gap: 40px;
}
.footer-grid h4{ color:#fff; font-size: 15px; margin-bottom: 18px; letter-spacing: .02em; }
.footer-grid li{ margin-bottom: 11px; font-size: 14.5px; }
.footer-grid a:hover{ color: var(--cyan); }
.footer-brand img{ height: 44px; margin-bottom: 16px; filter: brightness(1.15); }
.footer-brand p{ color: #9AA3B2; font-size: 14px; max-width: 34ch; }
.footer-contact li{ display:flex; gap:10px; align-items:flex-start; }
.footer-bottom{
  margin-top: 54px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,0.08);
  display:flex; justify-content:space-between; flex-wrap:wrap; gap: 12px;
  font-size: 13px; color: #8189A0;
}
@media (max-width: 900px){
  .footer-grid{ grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px){
  .footer-grid{ grid-template-columns: 1fr; }
}

/* Page header (interior pages) */
.page-hero{
  padding: 70px 0 50px;
  background:
    radial-gradient(600px 260px at 85% -10%, rgba(30,86,160,0.12), transparent 70%),
    var(--paper);
  border-bottom: 1px solid var(--line);
}
.page-hero h1{ font-size: clamp(30px, 4vw, 44px); }
.breadcrumb{
  font-family: var(--mono); font-size: 12.5px; color: var(--muted);
  margin-bottom: 18px; letter-spacing: .04em;
}
.breadcrumb a{ color: var(--blue); }

/* Values / feature list */
.feature-row{ display:flex; gap: 18px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.feature-row:last-child{ border-bottom:none; }
.feature-row .num{ font-family: var(--mono); color: var(--blue); font-size: 13px; padding-top:4px; }
.feature-row h4{ font-size: 17px; margin-bottom: 4px; }
.feature-row p{ font-size: 14.5px; color: var(--muted); margin:0; }

/* Two column split */
.split{ display:grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items:center; }
@media (max-width: 900px){ .split{ grid-template-columns: 1fr; gap: 30px; } }

.tag-list{ display:flex; flex-wrap:wrap; gap: 10px; margin-top: 18px; }
.tag-list span{
  font-family: var(--mono); font-size: 12px; padding: 7px 13px;
  border: 1px solid var(--line); border-radius: 999px; color: var(--charcoal);
}

/* Service detail block */
.service-detail{
  display:grid; grid-template-columns: 60px 1fr; gap: 24px;
  padding: 38px 0; border-bottom: 1px solid var(--line);
}
.service-detail:last-child{ border-bottom: none; }
.service-detail .arc-icon svg{ width: 44px; height:44px; }
.service-detail h3{ font-size: 22px; margin-bottom: 8px; }
.service-detail ul{ margin-top: 14px; display:grid; grid-template-columns: 1fr 1fr; gap: 8px 24px; }
.service-detail li{
  font-size: 14px; color: var(--charcoal); position:relative; padding-left: 18px;
}
.service-detail li::before{
  content:''; position:absolute; left:0; top:8px; width:7px; height:7px; border-radius:50%;
  border: 2px solid var(--blue);
}
@media (max-width: 640px){
  .service-detail{ grid-template-columns: 1fr; }
  .service-detail ul{ grid-template-columns: 1fr; }
}

/* Contact page */
.contact-grid{ display:grid; grid-template-columns: .9fr 1.1fr; gap: 50px; }
@media (max-width: 900px){ .contact-grid{ grid-template-columns: 1fr; } }
.contact-info-card{
  background: var(--navy); color:#fff; border-radius: var(--radius);
  padding: 38px; position: relative; overflow:hidden;
}
.contact-info-card h3{ color:#fff; }
.contact-info-card p{ color: rgba(255,255,255,0.7); }
.contact-item{ display:flex; gap: 14px; align-items:flex-start; margin-top: 26px; }
.contact-item .ico{
  width: 40px; height:40px; border-radius: 50%; border: 1px solid rgba(255,255,255,0.3);
  display:flex; align-items:center; justify-content:center; flex-shrink:0;
}
.contact-item strong{ display:block; font-size: 14.5px; }
.contact-item a, .contact-item span{ font-size: 14px; color: rgba(255,255,255,0.75); }

.form-card{
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 38px;
}
.form-row{ display:grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 560px){ .form-row{ grid-template-columns: 1fr; } }
.field{ margin-bottom: 20px; }
.field label{
  display:block; font-family: var(--mono); font-size: 12px; color: var(--muted);
  letter-spacing: .04em; margin-bottom: 8px; text-transform: uppercase;
}
.field input, .field textarea, .field select{
  width:100%; padding: 13px 15px; border-radius: 9px; border: 1px solid var(--line);
  font-family: var(--body); font-size: 14.5px; background: var(--paper); color: var(--ink);
  transition: border-color .2s ease, box-shadow .2s ease;
}
.field input:focus, .field textarea:focus, .field select:focus{
  outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(30,86,160,0.15);
}
.field textarea{ resize: vertical; min-height: 120px; }
.form-note{ font-size: 12.5px; color: var(--muted); margin-top: 6px; }
.form-status{
  margin-top: 14px; font-size: 14px; font-weight: 600; display:none;
}
.form-status.show{ display:block; }

/* Focus visibility */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{
  outline: 2px solid var(--blue); outline-offset: 2px;
}

/* Map / office block */
.office-strip{ display:grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 50px; }
@media (max-width: 900px){ .office-strip{ grid-template-columns: 1fr; } }