/* ==========================================================
   KHYRONEX SOLUTIONS — design tokens
   ========================================================== */
:root{
  --bg:        #F1F3F6;
  --bg-alt:    #E4E8EE;
  --paper:     #FFFFFF;
  --ink:       #12172B;
  --ink-soft:  #4B5265;
  --line:      #C7CDD9;
  --accent:    #4B3BFF;
  --accent-ink:#FFFFFF;
  --accent-soft:#EDEBFF;
  --teal:      #00A896;

  --font-display: "Space Grotesk", "Segoe UI", sans-serif;
  --font-body:    "IBM Plex Sans", "Segoe UI", sans-serif;
  --font-mono:    "IBM Plex Mono", "Courier New", monospace;

  --max: 1180px;
  --radius: 10px;
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img,svg{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
h1,h2,h3,h4{
  font-family:var(--font-display);
  margin:0 0 .5em;
  line-height:1.15;
  letter-spacing:-0.01em;
}
p{ margin:0 0 1em; color:var(--ink-soft); }
ul,ol{ margin:0; padding:0; list-style:none; }
.wrap{
  max-width:var(--max);
  margin:0 auto;
  padding:0 24px;
}

:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:3px;
  border-radius:4px;
}

.eyebrow{
  font-family:var(--font-mono);
  font-size:.78rem;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--accent);
  margin:0 0 .8em;
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.4em;
  padding:.85em 1.5em;
  border-radius:8px;
  font-family:var(--font-display);
  font-weight:600;
  font-size:.95rem;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn-primary{
  background:var(--ink);
  color:#fff;
}
.btn-primary:hover{
  background:var(--accent);
  transform:translateY(-1px);
  box-shadow:0 8px 20px -8px rgba(75,59,255,.6);
}
.btn-ghost{
  background:transparent;
  border-color:var(--line);
  color:var(--ink);
}
.btn-ghost:hover{
  border-color:var(--ink);
}
.btn-full{ width:100%; }

/* ==========================================================
   HEADER
   ========================================================== */
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(241,243,246,.88);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:72px;
}
.logo{
  display:flex;
  align-items:center;
  gap:.6em;
}
.logo-text{
  font-family:var(--font-display);
  font-weight:700;
  font-size:1.05rem;
  letter-spacing:.02em;
}
.logo-suffix{
  display:block;
  font-family:var(--font-mono);
  font-weight:400;
  font-size:.62rem;
  letter-spacing:.22em;
  color:var(--ink-soft);
  margin-top:1px;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:2rem;
  font-size:.92rem;
  font-weight:500;
}
.main-nav a{
  color:var(--ink-soft);
  transition:color .15s ease;
}
.main-nav a:hover{ color:var(--ink); }
.nav-cta{
  padding:.55em 1.1em;
  background:var(--ink);
  color:#fff !important;
  border-radius:7px;
}
.nav-cta:hover{ background:var(--accent) !important; }

.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:38px;
  height:38px;
  background:none;
  border:1px solid var(--line);
  border-radius:7px;
  cursor:pointer;
}
.nav-toggle span{
  width:16px;
  height:2px;
  margin:0 auto;
  background:var(--ink);
  transition:transform .2s ease, opacity .2s ease;
}
.nav-toggle.open span:nth-child(1){ transform:translateY(6px) rotate(45deg); }
.nav-toggle.open span:nth-child(2){ opacity:0; }
.nav-toggle.open span:nth-child(3){ transform:translateY(-6px) rotate(-45deg); }

/* ==========================================================
   HERO
   ========================================================== */
.hero{
  position:relative;
  padding:88px 0 60px;
  overflow:hidden;
}
.hero-bg{
  position:absolute;
  inset:0;
  z-index:0;
  overflow:hidden;
}
.hero-grid{ position:absolute; inset:0; }
.blob{
  position:absolute;
  border-radius:50%;
  filter:blur(60px);
  opacity:.35;
  animation:drift 16s ease-in-out infinite alternate;
}
.blob-a{
  width:420px; height:420px;
  background:radial-gradient(circle, var(--accent), transparent 70%);
  top:-140px; right:-80px;
}
.blob-b{
  width:360px; height:360px;
  background:radial-gradient(circle, var(--teal), transparent 70%);
  bottom:-160px; left:-100px;
  animation-delay:3s;
}
@keyframes drift{
  from{ transform:translate(0,0) scale(1); }
  to{ transform:translate(30px,-20px) scale(1.08); }
}
.hero-inner{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:48px;
  align-items:center;
}
.hero-copy h1{
  font-size:clamp(2.2rem, 4vw, 3.4rem);
  max-width:14ch;
}
.hero-sub{
  font-size:1.05rem;
  max-width:46ch;
}
.hero-note{
  font-family:var(--font-mono);
  font-size:.8rem;
  color:var(--ink-soft);
  margin-top:1.4em;
}
.hero-actions{
  display:flex;
  gap:.9rem;
  flex-wrap:wrap;
  margin:1.6em 0 0;
}

.hero-diagram{ position:relative; }
.nexus-svg{ width:100%; height:auto; }
.nexus-lines .line{
  stroke:var(--line);
  stroke-width:1.4;
  stroke-dasharray:6 6;
  animation:dash 14s linear infinite;
}
@keyframes dash{ to{ stroke-dashoffset:-240; } }
.nexus-nodes .node{
  fill:var(--paper);
  stroke:var(--ink);
  stroke-width:1.6;
}
.nexus-nodes .node-hub{
  fill:var(--accent);
  stroke:var(--accent);
  animation:pulse 3.2s ease-in-out infinite;
}
@keyframes pulse{
  0%,100%{ r:30; }
  50%{ r:33; }
}
.nexus-labels .label{
  font-family:var(--font-mono);
  font-size:11px;
  fill:var(--ink-soft);
  text-anchor:middle;
}
.nexus-labels .label-hub{
  fill:#fff;
  font-weight:600;
  font-size:12px;
}
.nexus-labels .label-right{ text-anchor:middle; }
.nexus-labels .label-center{ text-anchor:middle; }

/* ---------- capability strip ---------- */
.strip{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:var(--paper);
}
.strip-inner{
  display:flex;
  flex-wrap:wrap;
  gap:1.4rem 2.2rem;
  padding:18px 24px;
  font-family:var(--font-mono);
  font-size:.78rem;
  letter-spacing:.04em;
  color:var(--ink-soft);
  justify-content:space-between;
}

/* ---------- stats ---------- */
.stats{
  background:var(--ink);
  color:#fff;
}
.stats-inner{
  display:grid;
  grid-template-columns:repeat(5, 1fr);
  gap:24px;
  padding:44px 24px;
  text-align:center;
}
.stat{
  display:flex;
  flex-direction:column;
  gap:6px;
}
.stat-num{
  font-family:var(--font-display);
  font-weight:700;
  font-size:clamp(1.6rem, 2.4vw, 2.1rem);
  background:linear-gradient(90deg, #fff, var(--accent-soft));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.stat-label{
  font-family:var(--font-mono);
  font-size:.74rem;
  letter-spacing:.05em;
  color:#B7BDD1;
  text-transform:uppercase;
}

/* ==========================================================
   SECTIONS (general)
   ========================================================== */
.section{ padding:96px 0; }
.section-alt{ background:var(--bg-alt); }
.section h2{
  font-size:clamp(1.7rem, 3vw, 2.3rem);
  max-width:20ch;
}
.section-lede{
  max-width:52ch;
  font-size:1.05rem;
}

/* reveal-on-scroll */
.reveal{
  opacity:0;
  transform:translateY(18px);
  transition:opacity .6s ease, transform .6s ease;
}
.reveal.in{
  opacity:1;
  transform:none;
}
@media (prefers-reduced-motion:reduce){
  .reveal{ opacity:1; transform:none; transition:none; }
  .nexus-lines .line, .nexus-nodes .node-hub{ animation:none; }
}

/* ---------- services grid ---------- */
.grid{
  display:grid;
  gap:22px;
  margin-top:2.6rem;
}
.grid-services{
  grid-template-columns:repeat(3, 1fr);
}
.card{
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:28px;
  transition:border-color .2s ease, transform .2s ease;
}
.card:hover{
  border-color:var(--accent);
  transform:translateY(-3px);
  box-shadow:0 16px 32px -20px rgba(18,23,43,.25);
}
.card-icon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:44px;
  height:44px;
  border-radius:9px;
  background:var(--accent-soft);
  color:var(--accent);
  margin-bottom:16px;
  transition:background .2s ease, color .2s ease;
}
.card-icon svg{ width:22px; height:22px; }
.card:hover .card-icon{
  background:var(--accent);
  color:#fff;
}
.card-tag{
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.08em;
  color:var(--teal);
  margin-bottom:.9em;
}
.card h3{ font-size:1.15rem; margin-bottom:.5em; }
.card p{ font-size:.95rem; margin-bottom:0; }

/* ---------- tech stack ---------- */
.tech-grid{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:2.4rem;
}
.tech-pill{
  font-family:var(--font-mono);
  font-size:.85rem;
  padding:.55em 1.1em;
  border:1px solid var(--line);
  border-radius:999px;
  background:var(--paper);
  color:var(--ink-soft);
  transition:border-color .2s ease, color .2s ease, transform .2s ease;
}
.tech-pill:hover{
  border-color:var(--accent);
  color:var(--ink);
  transform:translateY(-2px);
}

/* ---------- industries ---------- */
.grid-industries{
  grid-template-columns:repeat(6, 1fr);
}
.industry-card{
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px 14px;
  text-align:center;
  transition:border-color .2s ease, transform .2s ease;
}
.industry-card:hover{
  border-color:var(--teal);
  transform:translateY(-3px);
}
.industry-icon{
  display:block;
  font-size:1.8rem;
  margin-bottom:10px;
}
.industry-card h4{
  font-size:.88rem;
  margin:0;
  font-family:var(--font-body);
  font-weight:600;
}

/* ---------- process ---------- */
.process{
  margin-top:3rem;
  display:flex;
  flex-direction:column;
  gap:0;
}
.process li{
  display:grid;
  grid-template-columns:90px 1fr;
  gap:28px;
  padding:28px 0;
  border-top:1px solid var(--line);
}
.process li:last-child{ border-bottom:1px solid var(--line); }
.process-index{
  font-family:var(--font-mono);
  font-size:1.1rem;
  color:var(--accent);
}
.process h3{ font-size:1.2rem; margin-bottom:.35em; }
.process p{ max-width:56ch; margin-bottom:0; }

/* ---------- about ---------- */
.about-grid{
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:52px;
  align-items:start;
}
.about-grid h2{ max-width:18ch; }
.about-points{
  display:flex;
  flex-direction:column;
  gap:22px;
}
.point{
  border-left:2px solid var(--accent);
  padding-left:18px;
}
.point h4{ font-size:1.02rem; margin-bottom:.3em; }
.point p{ font-size:.94rem; margin-bottom:0; }

/* ---------- why us ---------- */
.grid-why{ grid-template-columns:repeat(4, 1fr); }
.why-card{
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:24px;
}
.why-card h3{ font-size:1.02rem; margin-bottom:.4em; }
.why-card p{ font-size:.92rem; margin-bottom:0; }

/* ---------- careers ---------- */
.careers-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.careers-inner h2{ max-width:16ch; }
.careers-inner > div{ max-width:56ch; }

/* ---------- contact ---------- */
.contact-grid{
  display:grid;
  grid-template-columns:.9fr 1.1fr;
  gap:52px;
}
.contact-details{
  margin-top:2rem;
  display:flex;
  flex-direction:column;
  gap:14px;
}
.contact-details li{
  display:flex;
  justify-content:space-between;
  border-bottom:1px solid var(--line);
  padding-bottom:10px;
  font-size:.95rem;
}
.contact-details strong{
  font-family:var(--font-mono);
  font-weight:500;
  color:var(--ink-soft);
  font-size:.8rem;
  letter-spacing:.04em;
  text-transform:uppercase;
}
.contact-form{
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:32px;
  display:flex;
  flex-direction:column;
  gap:16px;
}
.contact-form label{
  display:flex;
  flex-direction:column;
  gap:6px;
  font-size:.85rem;
  font-weight:500;
  color:var(--ink-soft);
}
.contact-form input,
.contact-form textarea{
  font-family:var(--font-body);
  font-size:.95rem;
  padding:.7em .85em;
  border:1px solid var(--line);
  border-radius:7px;
  background:var(--bg);
  color:var(--ink);
  resize:vertical;
}
.contact-form input:focus,
.contact-form textarea:focus{
  outline:none;
  border-color:var(--accent);
  background:var(--paper);
}
.form-note{
  font-size:.78rem;
  color:var(--ink-soft);
  margin:0;
}

/* ==========================================================
   FOOTER
   ========================================================== */
.site-footer{
  border-top:1px solid var(--line);
  background:var(--paper);
  padding:44px 0;
}
.footer-inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.footer-brand p{
  font-size:.85rem;
  margin:.3em 0 0;
}
.footer-nav{
  display:flex;
  gap:1.4rem;
  font-size:.9rem;
}
.footer-nav a{ color:var(--ink-soft); }
.footer-nav a:hover{ color:var(--ink); }
.footer-legal{
  font-size:.78rem;
  color:var(--ink-soft);
  margin:0;
  width:100%;
  text-align:center;
  padding-top:20px;
  border-top:1px solid var(--line);
}

/* ==========================================================
   RESPONSIVE
   ========================================================== */
@media (max-width: 980px){
  .grid-services{ grid-template-columns:repeat(2,1fr); }
  .grid-why{ grid-template-columns:repeat(2,1fr); }
  .grid-industries{ grid-template-columns:repeat(3,1fr); }
  .stats-inner{ grid-template-columns:repeat(3,1fr); }
  .hero-inner{ grid-template-columns:1fr; }
  .hero-diagram{ order:-1; max-width:340px; margin:0 auto; }
  .about-grid,
  .contact-grid{ grid-template-columns:1fr; }
}

@media (max-width: 760px){
  .main-nav{
    position:absolute;
    top:72px;
    left:0;
    right:0;
    background:var(--paper);
    border-bottom:1px solid var(--line);
    flex-direction:column;
    align-items:flex-start;
    gap:0;
    padding:8px 24px 18px;
    transform:translateY(-8px);
    opacity:0;
    pointer-events:none;
    transition:opacity .18s ease, transform .18s ease;
  }
  .main-nav.open{
    opacity:1;
    transform:none;
    pointer-events:auto;
  }
  .main-nav a{
    width:100%;
    padding:12px 0;
    border-bottom:1px solid var(--bg-alt);
  }
  .nav-cta{
    margin-top:10px;
    text-align:center;
  }
  .nav-toggle{ display:flex; }
  .grid-services{ grid-template-columns:1fr; }
  .grid-why{ grid-template-columns:1fr; }
  .grid-industries{ grid-template-columns:repeat(2,1fr); }
  .stats-inner{ grid-template-columns:repeat(2,1fr); }
  .process li{ grid-template-columns:1fr; gap:8px; }
  .careers-inner{ flex-direction:column; align-items:flex-start; }
  .section{ padding:64px 0; }
  .hero{ padding:56px 0 40px; }
}