/* ===========================================================
   UC Solutions — design tokens
   Palette:
     --bg        #0D1526  deep ops-center navy
     --bg-panel  #131E33  raised panel navy
     --line      #2A3B57  hairline / connector lines
     --text      #E7ECF5  primary text
     --text-dim  #9FB0C9  secondary text
     --accent    #F2A65A  amber signal (CTAs, highlights)
     --accent-2  #6FCF97  green signal (active/online state)
   Type:
     Display  — Space Grotesk (headlines, wordmark)
     Body     — Inter (paragraphs, UI text)
     Mono     — IBM Plex Mono (labels, node IDs, data)
   =========================================================== */

:root{
  --bg:#0D1526;
  --bg-panel:#131E33;
  --bg-panel-2:#0F1A2E;
  --line:#2A3B57;
  --line-soft:#1C2A44;
  --text:#E7ECF5;
  --text-dim:#9FB0C9;
  --accent:#F2A65A;
  --accent-dim:#B97A42;
  --accent-2:#6FCF97;
  --accent-glow:rgba(242,166,90,.35);
  --accent-2-glow:rgba(111,207,151,.28);
  --grad-accent:linear-gradient(135deg,#F2A65A 0%,#F6C77B 100%);
  --radius:3px;
  --max:1180px;
  --font-display:'Space Grotesk', sans-serif;
  --font-body:'Inter', sans-serif;
  --font-mono:'IBM Plex Mono', monospace;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:
    radial-gradient(700px 500px at 88% -8%, rgba(242,166,90,.10), transparent 60%),
    radial-gradient(900px 600px at -10% 30%, rgba(111,207,151,.06), transparent 55%),
    var(--bg);
  background-attachment:fixed;
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  position:relative;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(231,236,245,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(231,236,245,.025) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(1100px 700px at 70% 0%, #000 0%, transparent 70%);
}
.site-header, main, section, footer, .hero, .cta-band, .strip{position:relative;z-index:1;}

@media (prefers-reduced-motion: no-preference){
  .reveal{
    opacity:0;
    transform:translateY(22px);
    transition:opacity .7s cubic-bezier(.16,1,.3,1), transform .7s cubic-bezier(.16,1,.3,1);
  }
  .reveal.in{opacity:1;transform:translateY(0);}
  .reveal-stagger > *{
    opacity:0;
    transform:translateY(18px);
    transition:opacity .6s cubic-bezier(.16,1,.3,1), transform .6s cubic-bezier(.16,1,.3,1);
  }
  .reveal-stagger.in > *{opacity:1;transform:translateY(0);}
  .reveal-stagger.in > *:nth-child(1){transition-delay:.03s;}
  .reveal-stagger.in > *:nth-child(2){transition-delay:.11s;}
  .reveal-stagger.in > *:nth-child(3){transition-delay:.19s;}
  .reveal-stagger.in > *:nth-child(4){transition-delay:.27s;}
}

img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}

::selection{background:var(--accent);color:#0D1526;}

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

.wrap{
  max-width:var(--max);
  margin:0 auto;
  padding:0 28px;
}

.eyebrow{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--accent);
  display:flex;
  align-items:center;
  gap:10px;
}
.eyebrow::before{
  content:"";
  width:7px;height:7px;
  background:var(--accent);
  border-radius:50%;
  box-shadow:0 0 0 3px rgba(242,166,90,.18);
}

h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:600;
  line-height:1.08;
  margin:0 0 .5em;
  letter-spacing:-.01em;
}
h1{font-size:clamp(2.4rem,5vw,4rem);}
h2{font-size:clamp(1.7rem,3vw,2.4rem);}
h3{font-size:1.2rem;}
p{margin:0 0 1em;color:var(--text-dim);}
p.lead{font-size:1.15rem;color:var(--text);}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(13,21,38,.7);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line-soft);
  transition:background .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.site-header.scrolled{
  background:rgba(11,17,31,.92);
  box-shadow:0 12px 32px -16px rgba(0,0,0,.5);
}
.site-header .wrap{
  display:flex;align-items:center;justify-content:space-between;
  padding-top:18px;padding-bottom:18px;
}
.logo{
  font-family:var(--font-display);
  font-weight:700;
  font-size:1.15rem;
  letter-spacing:-.01em;
  display:flex;align-items:center;gap:10px;
}
.logo-mark{flex-shrink:0;}
.logo-mark circle{fill:var(--accent);}
.logo-mark circle:nth-child(1){fill:var(--line);}
.logo-mark circle:nth-child(2){fill:var(--line);}
.logo-word{display:flex;align-items:baseline;gap:8px;}
.logo span{
  font-family:var(--font-mono);
  font-size:11px;
  color:var(--accent);
  font-weight:400;
  letter-spacing:.08em;
}
nav.main-nav{display:flex;align-items:center;gap:36px;}
nav.main-nav ul{list-style:none;display:flex;gap:28px;margin:0;padding:0;}
nav.main-nav a{
  font-size:14px;color:var(--text-dim);
  position:relative;padding:4px 0;
  transition:color .15s ease;
}
nav.main-nav a:hover,nav.main-nav a.active{color:var(--text);}
nav.main-nav a.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;background:var(--accent);
}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);
  font-size:13px;letter-spacing:.03em;
  padding:11px 20px;
  border:1px solid var(--accent);
  color:var(--accent);
  border-radius:var(--radius);
  transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn:hover{background:var(--accent);color:#0D1526;transform:translateY(-2px);}
.btn.primary{background:var(--grad-accent);color:#1A1206;border-color:transparent;box-shadow:0 8px 24px -10px var(--accent-glow);}
.btn.primary:hover{box-shadow:0 12px 30px -8px var(--accent-glow);transform:translateY(-2px);}
.btn.ghost{border-color:var(--line);color:var(--text-dim);}
.btn.ghost:hover{border-color:var(--text-dim);color:var(--text);background:transparent;}
.btn svg{transition:transform .2s ease;}
.btn:hover svg{transform:translateX(3px);}
.nav-toggle{display:none;background:none;border:1px solid var(--line);color:var(--text);padding:8px 10px;border-radius:var(--radius);}

/* ---------- hero / topology ---------- */
.hero{
  padding:88px 0 64px;
  position:relative;
  overflow:hidden;
}
.hero-grid{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:40px;
  align-items:center;
}
.hero h1{margin-bottom:.4em;}
.hero .lead{max-width:46ch;margin-bottom:1.6em;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;}

.topo{
  position:relative;
  aspect-ratio:1/1;
  max-width:460px;
  margin:0 auto;
}
.topo svg{width:100%;height:100%;overflow:visible;}
.topo .link{
  stroke:var(--line);
  stroke-width:1.4;
  fill:none;
  stroke-dasharray:4 340;
  stroke-dashoffset:0;
  animation:draw 1.8s ease forwards;
}
.topo .link.a{animation-delay:.1s;}
.topo .link.b{animation-delay:.35s;}
.topo .link.c{animation-delay:.6s;}
.topo .link.d{animation-delay:.85s;}
@keyframes draw{
  from{stroke-dasharray:4 340;stroke:var(--line);}
  60%{stroke:var(--accent-dim);}
  to{stroke-dasharray:340 0;stroke:var(--line);}
}
.topo .node-dot{
  fill:var(--bg-panel);
  stroke:var(--line);
  stroke-width:1.4;
}
.topo .node-core{fill:var(--accent);filter:drop-shadow(0 0 10px var(--accent-glow));}
.topo .node-label{
  font-family:var(--font-mono);
  font-size:9.5px;
  fill:var(--text-dim);
  letter-spacing:.04em;
}
.topo .pulse{
  fill:none;stroke:var(--accent-2);stroke-width:1;
  opacity:0;
  animation:pulse 2.6s ease-in-out infinite;
}
.topo .pulse.p1{animation-delay:1.2s;}
.topo .pulse.p2{animation-delay:1.9s;}
.topo .pulse.p3{animation-delay:2.6s;}
@keyframes pulse{
  0%{r:14;opacity:.55;}
  100%{r:30;opacity:0;}
}
@media (prefers-reduced-motion: reduce){
  .topo .link{animation:none;stroke-dasharray:none;}
  .topo .pulse{animation:none;opacity:0;}
}

/* ---------- engagement strip ---------- */
.strip{
  border-top:1px solid var(--line-soft);
  border-bottom:1px solid var(--line-soft);
  padding:28px 0;
}
.strip .wrap{display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;}
.strip-label{font-family:var(--font-mono);font-size:12px;color:var(--text-dim);letter-spacing:.1em;text-transform:uppercase;}
.pill-row{display:flex;gap:10px;flex-wrap:wrap;}
.pill{
  font-family:var(--font-mono);font-size:12.5px;
  padding:7px 14px;border:1px solid var(--line);border-radius:100px;
  color:var(--text-dim);
}

/* ---------- sections ---------- */
section{padding:80px 0;}
.section-head{max-width:640px;margin-bottom:44px;}
.section-head h2{margin-top:.3em;}

.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line-soft);border:1px solid var(--line-soft);}
.card{
  background:var(--bg);padding:32px 28px;
  position:relative;overflow:hidden;
  transition:transform .3s cubic-bezier(.16,1,.3,1), background .3s ease;
}
.card::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(240px 160px at 0% 0%, rgba(242,166,90,.09), transparent 70%);
  opacity:0;transition:opacity .35s ease;
  pointer-events:none;
}
.card:hover{transform:translateY(-6px);background:var(--bg-panel-2);}
.card:hover::before{opacity:1;}
.card .card-index{font-family:var(--font-mono);font-size:12px;color:var(--accent);margin-bottom:18px;display:block;}
.card h3{margin-bottom:.5em;}
.card p{margin-bottom:0;font-size:14.5px;}
.card ul{list-style:none;margin:16px 0 0;padding:0;font-size:14px;color:var(--text-dim);}
.card ul li{padding:6px 0;border-top:1px solid var(--line-soft);position:relative;}
.card ul li:first-child{border-top:none;}

/* ---------- gradient headline span ---------- */
.grad-text{
  background:var(--grad-accent);
  -webkit-background-clip:text;background-clip:text;
  color:transparent;
}

/* ---------- badge ---------- */
.badge{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;
  color:var(--text-dim);
  border:1px solid var(--line);
  padding:6px 12px 6px 10px;
  border-radius:100px;
  margin-bottom:22px;
}
.badge .dot{width:6px;height:6px;border-radius:50%;background:var(--accent-2);box-shadow:0 0 0 3px var(--accent-2-glow);}
@media (prefers-reduced-motion: no-preference){
  .badge .dot{animation:blink 2.4s ease-in-out infinite;}
}
@keyframes blink{0%,100%{opacity:1;}50%{opacity:.35;}}

/* ---------- process timeline ---------- */
.process{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:12px;position:relative;}
.process::before{
  content:"";position:absolute;top:19px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,var(--line) 0%,var(--line) 100%);
  z-index:0;
}
.p-step{position:relative;z-index:1;padding-right:24px;}
.p-step .p-num{
  width:38px;height:38px;border-radius:50%;
  background:var(--bg-panel-2);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-mono);font-size:13px;color:var(--accent);
  margin-bottom:20px;
  transition:border-color .3s ease, box-shadow .3s ease;
}
.p-step:hover .p-num{border-color:var(--accent);box-shadow:0 0 0 5px var(--accent-glow);}
.p-step h4{font-size:15px;margin-bottom:8px;}
.p-step p{font-size:13.5px;margin:0;}

/* ---------- tech marquee ---------- */
.marquee-wrap{
  border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);
  padding:26px 0;overflow:hidden;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
}
.marquee-track{
  display:flex;gap:56px;width:max-content;
  font-family:var(--font-mono);font-size:13px;color:var(--text-dim);
  letter-spacing:.04em;
}
@media (prefers-reduced-motion: no-preference){
  .marquee-track{animation:scroll-x 26s linear infinite;}
  .marquee-wrap:hover .marquee-track{animation-play-state:paused;}
}
@keyframes scroll-x{from{transform:translateX(0);}to{transform:translateX(-50%);}}
.marquee-track span{opacity:.65;transition:opacity .2s ease;}
.marquee-track span:hover{opacity:1;color:var(--accent);}

/* ---------- quote ---------- */
.quote-block{
  border:1px solid var(--line-soft);
  background:var(--bg-panel-2);
  padding:44px;
  position:relative;
}
.quote-block::before{
  content:"“";
  font-family:var(--font-display);
  font-size:5rem;
  color:var(--accent);
  opacity:.25;
  position:absolute;top:8px;left:24px;
  line-height:1;
}
.quote-block p{
  font-family:var(--font-display);
  font-size:1.35rem;
  color:var(--text);
  font-weight:500;
  line-height:1.4;
  margin-bottom:20px;
  max-width:62ch;
}
.quote-attr{font-family:var(--font-mono);font-size:12.5px;color:var(--text-dim);}

.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;}

.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line-soft);border:1px solid var(--line-soft);margin-top:20px;}
.stat{background:var(--bg-panel-2);padding:22px 20px;}
.stat .n{font-family:var(--font-mono);color:var(--accent);font-size:1.6rem;display:block;}
.stat .l{font-size:12.5px;color:var(--text-dim);}

.cta-band{
  background:var(--bg-panel);
  border-top:1px solid var(--line-soft);
  border-bottom:1px solid var(--line-soft);
  padding:64px 0;
}
.cta-band .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.cta-band h2{margin:0;}

footer{padding:48px 0 40px;}
footer .wrap{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;border-top:1px solid var(--line-soft);padding-top:32px;}
footer .f-col h4{font-family:var(--font-mono);font-size:12px;color:var(--text-dim);text-transform:uppercase;letter-spacing:.1em;margin-bottom:14px;}
footer .f-col a,footer .f-col p{display:block;font-size:14px;color:var(--text-dim);margin-bottom:8px;}
footer .f-col a:hover{color:var(--accent);}
footer .foot-note{font-family:var(--font-mono);font-size:11.5px;color:#5C6E8A;margin-top:28px;text-align:left;}

/* ---------- page hero (interior pages) ---------- */
.page-hero{padding:64px 0 48px;border-bottom:1px solid var(--line-soft);}
.page-hero .eyebrow{margin-bottom:16px;}

/* ---------- services page ---------- */
.service-block{padding:56px 0;border-bottom:1px solid var(--line-soft);}
.service-block:last-of-type{border-bottom:none;}
.service-block .split{grid-template-columns:.9fr 1.1fr;}
.tag-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.tag{font-family:var(--font-mono);font-size:12px;color:var(--text-dim);border:1px solid var(--line);padding:5px 12px;border-radius:100px;}

/* ---------- about page ---------- */
.model-list{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line-soft);border:1px solid var(--line-soft);margin-top:24px;}
.model{background:var(--bg);padding:26px 26px;}
.model h4{font-family:var(--font-mono);color:var(--accent);font-size:13px;text-transform:uppercase;letter-spacing:.08em;margin-bottom:10px;}
.model p{font-size:14.5px;margin:0;}

.value-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;margin-top:12px;}
.value h4{font-size:15px;margin-bottom:8px;}
.value p{font-size:14px;}

/* ---------- contact page ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;}
.field{margin-bottom:20px;}
.field label{
  display:block;font-family:var(--font-mono);font-size:12px;
  color:var(--text-dim);margin-bottom:8px;text-transform:uppercase;letter-spacing:.06em;
}
.field input,.field textarea{
  width:100%;background:var(--bg-panel-2);border:1px solid var(--line);
  color:var(--text);padding:12px 14px;font-family:var(--font-body);font-size:14.5px;border-radius:var(--radius);
}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--accent);}
.field textarea{resize:vertical;min-height:120px;}
.contact-info .info-row{display:flex;gap:14px;padding:16px 0;border-top:1px solid var(--line-soft);}
.contact-info .info-row:first-child{border-top:none;}
.contact-info .info-row .k{font-family:var(--font-mono);font-size:12px;color:var(--text-dim);width:110px;flex-shrink:0;text-transform:uppercase;letter-spacing:.06em;}
.contact-info .info-row .v{font-size:14.5px;}
.placeholder-note{
  margin-top:24px;font-family:var(--font-mono);font-size:12px;color:var(--accent-dim);
  border:1px dashed var(--line);padding:14px 16px;border-radius:var(--radius);
}

/* ---------- responsive ---------- */
@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr;}
  .topo{order:-1;max-width:320px;}
  .card-grid{grid-template-columns:1fr;}
  .split,.service-block .split{grid-template-columns:1fr;gap:28px;}
  .stat-row{grid-template-columns:repeat(2,1fr);}
  .contact-grid{grid-template-columns:1fr;}
  .model-list{grid-template-columns:1fr;}
  .value-grid{grid-template-columns:1fr;gap:22px;}
  nav.main-nav ul{display:none;}
  .nav-toggle{display:inline-block;}
  .process{grid-template-columns:1fr;gap:28px;}
  .process::before{display:none;}
  .quote-block{padding:30px 24px;}
  .quote-block p{font-size:1.1rem;}
}
@media (max-width:520px){
  .cta-band .wrap{flex-direction:column;align-items:flex-start;}
}