/* ============================================================
   VVSK TECHNOLOGIES — Design System
   Palette: near-black / deep navy base, electric blue + violet +
   cyan accents pulled from the brand's own gradient mark.
   Type: Space Grotesk (display) / Inter (body, UI, data)
   Signature: the "pipeline line" — an animated route of nodes
   (Ingest → Transform → Model → Serve) that recurs across the
   site as the literal shape of what this company builds.
   ============================================================ */

:root{
  --navy-950:#05070d;
  --navy-900:#0a1730;
  --navy-850:#0d1c3a;
  --navy-700:#16264a;
  --line:rgba(233,238,250,.09);
  --line-strong:rgba(233,238,250,.16);
  --ink-0:#f3f6fc;
  --ink-1:#c4cce0;
  --ink-2:#8b96ac;
  --ink-3:#5d6883;
  --blue:#3b7bff;
  --blue-soft:#2f6fed;
  --violet:#8b6bff;
  --cyan:#4fd8e8;
  --amber:#f2b25a;
  --grad-signature:linear-gradient(92deg,var(--blue) 0%,var(--violet) 55%,var(--cyan) 100%);
  --radius-lg:20px;
  --radius-md:14px;
  --radius-sm:9px;
  --shadow-1:0 1px 0 rgba(255,255,255,.03) inset, 0 20px 60px -25px rgba(0,0,0,.7);
  --ease:cubic-bezier(.16,.8,.24,1);
  --maxw:1240px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--navy-950);
  color:var(--ink-0);
  font-family:'Inter',system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{
  font-family:'Space Grotesk',var(--font-fallback,system-ui),sans-serif;
  font-weight:600;
  line-height:1.08;
  letter-spacing:-0.01em;
  margin:0 0 .5em;
  color:var(--ink-0);
}
p{margin:0 0 1em;color:var(--ink-1);}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
::selection{background:var(--violet);color:#fff;}

/* background texture: fine grid + ambient glow, present site-wide */
.bg-field{
  position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:
    radial-gradient(1100px 700px at 82% -10%, rgba(59,123,255,.18), transparent 60%),
    radial-gradient(900px 600px at -10% 30%, rgba(139,107,255,.14), transparent 60%),
    var(--navy-950);
}
.bg-grid{
  position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.35;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(1200px 800px at 50% 0%, black, transparent 75%);
}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 32px;}
@media (max-width:640px){.wrap{padding:0 20px;}}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:'Space Grotesk',sans-serif;
  font-size:12.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
  color:var(--cyan);
  margin-bottom:18px;
}
.eyebrow::before{
  content:"";width:16px;height:1px;background:var(--cyan);display:inline-block;
}

.section{padding:120px 0;position:relative;}
.section-tight{padding:80px 0;}
@media (max-width:900px){
  .section{padding:80px 0;}
  .section-tight{padding:56px 0;}
}

.section-head{max-width:640px;margin:0 0 56px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head h2{font-size:clamp(28px,3.6vw,42px);}
.section-head p{font-size:17px;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:13px 24px;border-radius:100px;
  font-size:14.5px;font-weight:600;font-family:'Space Grotesk',sans-serif;
  letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .35s var(--ease), background .35s, border-color .35s, box-shadow .35s;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-2px);}
.btn-primary{
  background:var(--grad-signature);color:#04060c;
  box-shadow:0 12px 30px -12px rgba(59,123,255,.55);
}
.btn-primary:hover{box-shadow:0 16px 36px -12px rgba(139,107,255,.6);}
.btn-ghost{
  background:rgba(255,255,255,.02);
  border-color:var(--line-strong);
  color:var(--ink-0);
  backdrop-filter:blur(6px);
}
.btn-ghost:hover{border-color:rgba(139,107,255,.5);background:rgba(139,107,255,.08);}
.btn-sm{padding:10px 18px;font-size:13.5px;}
.btn-arrow{transition:transform .3s var(--ease);}
.btn:hover .btn-arrow{transform:translateX(3px);}

/* ---------- Navbar ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  padding:22px 0;
  transition:padding .4s var(--ease), background .4s var(--ease), border-color .4s var(--ease);
  border-bottom:1px solid transparent;
}
.nav.scrolled{
  padding:14px 0;
  background:rgba(5,7,13,.72);
  backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;}
.brand{display:flex;align-items:center;gap:11px;}
.brand img{height:30px;width:auto;}
.brand-word{font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:17px;letter-spacing:.01em;}
.brand-word b{font-weight:700;}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-links a{
  font-size:14px;font-weight:500;color:var(--ink-1);
  padding:9px 15px;border-radius:100px;position:relative;
  transition:color .25s, background .25s;
}
.nav-links a:hover{color:var(--ink-0);background:rgba(255,255,255,.045);}
.nav-links a.active{color:var(--ink-0);background:rgba(255,255,255,.06);}
.nav-cta{display:flex;align-items:center;gap:10px;}
.nav-toggle{display:none;}
@media (max-width:920px){
  .nav-links{
    position:fixed;top:0;right:0;height:100vh;width:min(320px,84vw);
    background:rgba(8,12,24,.98);backdrop-filter:blur(20px);
    flex-direction:column;align-items:flex-start;justify-content:flex-start;
    padding:100px 28px 40px;gap:4px;
    border-left:1px solid var(--line);
    transform:translateX(100%);transition:transform .45s var(--ease);
  }
  .nav-links.open{transform:translateX(0);}
  .nav-links a{width:100%;padding:14px 4px;font-size:16px;border-radius:0;border-bottom:1px solid var(--line);}
  .nav-cta .btn-ghost{display:none;}
  .nav-toggle{
    display:flex;flex-direction:column;gap:5px;justify-content:center;align-items:center;
    width:38px;height:38px;border-radius:10px;border:1px solid var(--line-strong);
    background:rgba(255,255,255,.03);cursor:pointer;z-index:101;position:relative;
  }
  .nav-toggle span{width:16px;height:1.5px;background:var(--ink-0);transition:transform .3s, opacity .3s;}
  .nav-toggle.open span:nth-child(1){transform:translateY(6.5px) rotate(45deg);}
  .nav-toggle.open span:nth-child(2){opacity:0;}
  .nav-toggle.open span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg);}
}

/* ---------- Hero ---------- */
.hero{padding:190px 0 100px;position:relative;overflow:hidden;}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
@media (max-width:980px){.hero-grid{grid-template-columns:1fr;}}
.hero h1{font-size:clamp(36px,5.4vw,64px);margin-bottom:22px;}
.hero h1 em{
  font-style:normal;background:var(--grad-signature);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:18px;max-width:520px;color:var(--ink-1);margin-bottom:34px;}
.hero-ctas{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:56px;}
.hero-stats{display:flex;gap:36px;flex-wrap:wrap;}
.hero-stat b{
  display:block;font-family:'Space Grotesk',sans-serif;font-size:28px;font-weight:700;color:var(--ink-0);
}
.hero-stat span{font-size:13px;color:var(--ink-2);}

/* pipeline signature graphic */
.pipeline-card{
  position:relative;border:1px solid var(--line);border-radius:var(--radius-lg);
  background:linear-gradient(180deg,rgba(255,255,255,.035),rgba(255,255,255,.01));
  padding:28px 22px 22px;box-shadow:var(--shadow-1);
}
.pipeline-card .pc-label{
  display:flex;justify-content:space-between;align-items:center;margin-bottom:18px;
  font-size:12px;color:var(--ink-2);font-family:'Space Grotesk',sans-serif;letter-spacing:.05em;
}
.pipeline-card .pc-label .dot{width:7px;height:7px;border-radius:50%;background:var(--cyan);display:inline-block;margin-right:7px;box-shadow:0 0 10px var(--cyan);animation:pulse 2s infinite;}
.pipeline-svg{width:100%;height:auto;display:block;}
.pipeline-node-label{font-size:11px;fill:var(--ink-2);font-family:'Inter',sans-serif;}
.pipeline-stage-label{font-size:12.5px;fill:var(--ink-0);font-family:'Space Grotesk',sans-serif;font-weight:600;}

@keyframes pulse{0%,100%{opacity:1;}50%{opacity:.35;}}
@keyframes flow{to{stroke-dashoffset:-200;}}
@keyframes floaty{0%,100%{transform:translateY(0);}50%{transform:translateY(-8px);}}

/* ---------- Logo strip ---------- */
.strip{padding:44px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.strip-label{font-size:12px;color:var(--ink-3);letter-spacing:.1em;text-transform:uppercase;margin-bottom:22px;text-align:center;}
.strip-row{display:flex;flex-wrap:wrap;justify-content:center;gap:40px;align-items:center;opacity:.75;}
.strip-row span{font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:15px;color:var(--ink-2);letter-spacing:.02em;}

/* ---------- Cards ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
@media (max-width:980px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr);}}
@media (max-width:640px){.grid-3,.grid-2,.grid-4{grid-template-columns:1fr;}}

.card{
  position:relative;border:1px solid var(--line);border-radius:var(--radius-md);
  background:linear-gradient(180deg,rgba(255,255,255,.03),rgba(255,255,255,.008));
  padding:28px 26px;transition:border-color .35s var(--ease), transform .35s var(--ease), background .35s;
}
.card:hover{border-color:var(--line-strong);transform:translateY(-4px);background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.01));}
.card .icn{
  width:42px;height:42px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  background:rgba(139,107,255,.12);border:1px solid rgba(139,107,255,.25);color:var(--cyan);margin-bottom:18px;
}
.card .icn svg{width:20px;height:20px;}
.card h3{font-size:18px;margin-bottom:8px;}
.card p{font-size:14.5px;margin-bottom:0;}
.card .tag-row{display:flex;flex-wrap:wrap;gap:6px;margin-top:16px;}
.card .tag-row span{
  font-size:11px;padding:4px 9px;border-radius:100px;border:1px solid var(--line-strong);
  color:var(--ink-2);font-family:'Space Grotesk',sans-serif;
}
.card-link{display:inline-flex;align-items:center;gap:6px;margin-top:18px;font-size:13.5px;font-weight:600;color:var(--cyan);}

/* number / index styling used only where order is real (process steps) */
.step{display:flex;gap:20px;padding:26px 0;border-top:1px solid var(--line);}
.step:last-child{border-bottom:1px solid var(--line);}
.step .num{
  font-family:'Space Grotesk',sans-serif;font-size:13px;color:var(--ink-3);min-width:64px;padding-top:3px;
}
.step h4{font-size:18px;margin-bottom:6px;}
.step p{font-size:14.5px;margin-bottom:0;max-width:560px;}

/* stat band */
.stat-band{
  border:1px solid var(--line);border-radius:var(--radius-lg);
  background:linear-gradient(135deg,rgba(59,123,255,.09),rgba(139,107,255,.06));
  padding:48px 40px;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
}
@media (max-width:900px){.stat-band{grid-template-columns:repeat(2,1fr);}}
.stat-band .s b{font-family:'Space Grotesk',sans-serif;font-size:36px;font-weight:700;display:block;
  background:var(--grad-signature);-webkit-background-clip:text;background-clip:text;color:transparent;}
.stat-band .s span{font-size:13.5px;color:var(--ink-2);}

/* tech marquee */
.tech-marquee{overflow:hidden;position:relative;-webkit-mask-image:linear-gradient(90deg,transparent,black 8%,black 92%,transparent);mask-image:linear-gradient(90deg,transparent,black 8%,black 92%,transparent);}
.tech-track{display:flex;gap:14px;width:max-content;animation:scroll-x 38s linear infinite;}
.tech-marquee:hover .tech-track{animation-play-state:paused;}
@keyframes scroll-x{from{transform:translateX(0);}to{transform:translateX(-50%);}}
.tech-chip{
  display:flex;align-items:center;gap:9px;padding:12px 18px;border:1px solid var(--line);border-radius:100px;
  background:rgba(255,255,255,.025);font-size:14px;font-weight:500;color:var(--ink-1);white-space:nowrap;
}
.tech-chip .d{width:6px;height:6px;border-radius:50%;background:var(--cyan);}

/* testimonial */
.testi{
  border:1px solid var(--line);border-radius:var(--radius-md);padding:30px 28px;
  background:linear-gradient(180deg,rgba(255,255,255,.03),rgba(255,255,255,.008));
}
.testi p{font-size:16.5px;color:var(--ink-0);font-family:'Space Grotesk',sans-serif;font-weight:500;line-height:1.5;}
.testi .who{display:flex;align-items:center;gap:12px;margin-top:20px;}
.testi .avatar{width:38px;height:38px;border-radius:50%;background:var(--grad-signature);}
.testi .who b{display:block;font-size:14px;}
.testi .who span{font-size:12.5px;color:var(--ink-2);}

/* CTA band */
.cta-band{
  border:1px solid var(--line-strong);border-radius:28px;padding:64px 48px;text-align:center;position:relative;overflow:hidden;
  background:radial-gradient(700px 300px at 50% -20%, rgba(139,107,255,.22), transparent 70%), var(--navy-900);
}
.cta-band h2{font-size:clamp(26px,3.4vw,38px);margin-bottom:14px;}
.cta-band p{max-width:480px;margin:0 auto 30px;}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;}

/* Footer */
.footer{border-top:1px solid var(--line);padding:64px 0 30px;}
.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:40px;margin-bottom:56px;}
@media (max-width:820px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:520px){.footer-grid{grid-template-columns:1fr;}}
.footer-brand p{font-size:14px;max-width:280px;margin-top:16px;}
.footer h5{font-family:'Space Grotesk',sans-serif;font-size:13px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-2);margin-bottom:16px;}
.footer li{margin-bottom:10px;}
.footer a{font-size:14px;color:var(--ink-1);transition:color .2s;}
.footer a:hover{color:var(--ink-0);}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px;
  padding-top:28px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-3);
}
.socials{display:flex;gap:10px;}
.socials a{
  width:34px;height:34px;border:1px solid var(--line-strong);border-radius:50%;
  display:flex;align-items:center;justify-content:center;color:var(--ink-2);transition:.25s;
}
.socials a:hover{border-color:var(--cyan);color:var(--cyan);}

/* reveal on scroll */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .8s var(--ease), transform .8s var(--ease);}
.reveal.in{opacity:1;transform:none;}

/* page hero (inner pages) */
.page-hero{padding:170px 0 70px;}
.page-hero .eyebrow{margin-bottom:16px;}
.page-hero h1{font-size:clamp(32px,4.6vw,52px);max-width:760px;}
.page-hero p{font-size:17px;max-width:600px;}
.breadcrumb{font-size:13px;color:var(--ink-3);margin-bottom:20px;}
.breadcrumb a{color:var(--ink-2);}
.breadcrumb a:hover{color:var(--cyan);}

/* form */
.form-card{border:1px solid var(--line);border-radius:var(--radius-lg);padding:36px;background:linear-gradient(180deg,rgba(255,255,255,.03),rgba(255,255,255,.008));}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
@media (max-width:600px){.form-row{grid-template-columns:1fr;}}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:8px;font-weight:500;}
.field input,.field select,.field textarea{
  width:100%;padding:13px 15px;border-radius:10px;border:1px solid var(--line-strong);
  background:rgba(255,255,255,.03);color:var(--ink-0);font-size:14.5px;font-family:'Inter',sans-serif;
  transition:border-color .25s, background .25s;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--blue);background:rgba(255,255,255,.05);
}
.field textarea{resize:vertical;min-height:120px;}
.contact-info-card{border:1px solid var(--line);border-radius:var(--radius-lg);padding:32px;background:rgba(255,255,255,.02);}
.info-row{display:flex;gap:14px;padding:16px 0;border-top:1px solid var(--line);}
.info-row:first-child{border-top:none;padding-top:0;}
.info-row .icn{width:38px;height:38px;border-radius:10px;background:rgba(79,216,232,.1);border:1px solid rgba(79,216,232,.25);display:flex;align-items:center;justify-content:center;flex-shrink:0;color:var(--cyan);}
.info-row .icn svg{width:17px;height:17px;}
.info-row b{display:block;font-size:14px;margin-bottom:2px;}
.info-row span, .info-row a{font-size:13.5px;color:var(--ink-2);}

/* misc */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;}
@media (max-width:900px){.two-col{grid-template-columns:1fr;gap:36px;}}
.pill{display:inline-flex;align-items:center;gap:7px;padding:6px 13px;border-radius:100px;border:1px solid var(--line-strong);font-size:12.5px;color:var(--ink-2);}
.divider{height:1px;background:var(--line);margin:0;}
.text-gradient{background:var(--grad-signature);-webkit-background-clip:text;background-clip:text;color:transparent;}
.skip-link{position:absolute;left:-999px;top:0;background:var(--blue);color:#fff;padding:10px 16px;z-index:200;}
.skip-link:focus{left:12px;top:12px;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}