/* =====================================================================
   Mordecha Datskovsky — FPGA Acceleration
   Brand & theme tokens live here. Edit colors/fonts in :root.
   ===================================================================== */
:root{
  --ink:#0a0e1a; --ink-2:#39415a; --muted:#727b93;
  --bg:#ffffff; --soft:#f5f7fc; --line:#e7eaf3; --line-2:#dfe3f0;
  --accent:#3f6bff; --accent-2:#10cfc9;
  --dark:#0a0e1a; --dark-2:#10162a; --dark-line:#222a44;
  --grad:linear-gradient(120deg,var(--accent),var(--accent-2));
  --radius:18px; --radius-sm:12px; --max:1160px;
  --shadow:0 18px 50px rgba(14,20,48,.10);
  --shadow-sm:0 6px 22px rgba(14,20,48,.07);
  --font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  --display:'Sora',var(--font);
  --mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img,svg{display:block}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
.narrow{max-width:820px}
section{padding:104px 0;position:relative}
h1,h2,h3{font-family:var(--display);line-height:1.12;letter-spacing:-.02em;font-weight:700}
h2{font-size:clamp(28px,4.2vw,44px)}
h3{font-size:19px;font-weight:600;letter-spacing:-.01em}
.lead{color:var(--ink-2);font-size:18px;max-width:62ch}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.center{text-align:center}
.center .lead{margin-left:auto;margin-right:auto}
.sec-head{max-width:720px;margin-bottom:52px}
.sec-head.center{margin-left:auto;margin-right:auto}
.sec-head h2{margin:14px 0 16px}
.kicker{display:inline-flex;align-items:center;gap:9px;font:600 12px/1 var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--accent)}
.pulse-dot{width:8px;height:8px;border-radius:50%;background:var(--accent-2);box-shadow:0 0 0 0 rgba(16,207,201,.6);animation:pulse 2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(16,207,201,.5)}70%{box-shadow:0 0 0 9px rgba(16,207,201,0)}100%{box-shadow:0 0 0 0 rgba(16,207,201,0)}}

/* ===== buttons ===== */
.btn{display:inline-flex;align-items:center;gap:9px;font-weight:600;font-size:15px;padding:14px 24px;border-radius:999px;transition:transform .18s,box-shadow .18s,background .18s,color .18s,border-color .18s;cursor:pointer;border:1.5px solid transparent;white-space:nowrap}
.btn-sm{padding:9px 18px;font-size:14px}
.btn .arr{transition:transform .2s}
.btn:hover .arr{transform:translateX(3px)}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 22px rgba(63,107,255,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(63,107,255,.4)}
.btn-ghost{border-color:var(--line-2);color:var(--ink);background:#fff}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--ink)}
.btn-light:hover{transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.28)}
.btn-outline-light:hover{border-color:#fff;transform:translateY(-2px)}

/* ===== scroll progress ===== */
.scroll-progress{position:fixed;top:0;left:0;height:3px;width:0;background:var(--grad);z-index:100;transition:width .1s linear}

/* ===== header ===== */
header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.72);backdrop-filter:saturate(180%) blur(16px);border-bottom:1px solid transparent;transition:border-color .25s,box-shadow .25s,background .25s}
header.scrolled{border-color:var(--line);box-shadow:0 4px 24px rgba(14,20,48,.05)}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px}
.brand{display:flex;align-items:center;gap:11px}
.logo{flex:none}
.brand-text{display:flex;flex-direction:column;line-height:1.08}
.brand-text b{font-family:var(--display);font-size:16px;font-weight:700;letter-spacing:-.01em}
.brand-text i{font:600 9.5px/1 var(--mono);letter-spacing:.2em;color:var(--accent);text-transform:uppercase;font-style:normal;margin-top:3px}
.nav-links{display:flex;align-items:center;gap:32px}
.nav-links a{font-size:15px;color:var(--ink-2);font-weight:500;transition:color .15s}
.nav-links a:not(.btn):hover{color:var(--ink)}
.menu-btn{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:6px}
.menu-btn span{width:24px;height:2px;background:var(--ink);border-radius:2px;transition:.25s}
.menu-btn.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-btn.open span:nth-child(2){opacity:0}
.menu-btn.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ===== hero ===== */
.hero{padding:88px 0 64px;overflow:hidden}
.hero-glow{position:absolute;width:680px;height:680px;border-radius:50%;background:radial-gradient(circle,rgba(63,107,255,.18),transparent 62%);top:-220px;right:-140px;pointer-events:none;filter:blur(8px)}
.glow-2{background:radial-gradient(circle,rgba(16,207,201,.16),transparent 62%);top:auto;bottom:-260px;left:-160px;right:auto}
.glow-3{background:radial-gradient(circle,rgba(63,107,255,.22),transparent 60%);inset:auto;top:-180px;right:-120px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center;position:relative;z-index:1}
.hero h1{font-size:clamp(34px,5.3vw,62px);font-weight:800;margin:20px 0 22px}
.hero .lead{font-size:19px}
.cta{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap}
.stats{display:flex;gap:36px;margin-top:46px;flex-wrap:wrap}
.stats div{display:flex;flex-direction:column}
.stats b{font-family:var(--display);font-size:27px;font-weight:700;letter-spacing:-.02em}
.stats small{color:var(--muted);font-size:13px;font-weight:500;margin-top:2px}

/* hero panel + systolic array */
.hero-visual{position:relative}
.panel{background:var(--dark);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);border:1px solid var(--dark-line);position:relative;overflow:hidden}
.panel-top{display:flex;align-items:center;gap:7px;margin-bottom:18px}
.panel-top i{width:11px;height:11px;border-radius:50%}
.panel-top i:nth-child(1){background:#ff5f56}.panel-top i:nth-child(2){background:#ffbd2e}.panel-top i:nth-child(3){background:#27c93f}
.panel-top span{margin-left:8px;font:500 11.5px/1 var(--mono);color:#697294}
.systolic{display:grid;grid-template-columns:repeat(8,1fr);gap:6px;margin-bottom:18px}
.systolic i{aspect-ratio:1;border-radius:5px;background:#161d33;border:1px solid #232c48;transition:none}
.systolic i.on{background:var(--grad);border-color:transparent;box-shadow:0 0 14px rgba(40,140,230,.6)}
.term{font-family:var(--mono);font-size:12.5px;line-height:1.75;color:#9aa6c8;white-space:pre-wrap}
.c-key{color:#7f9bff}.c-com{color:#5d678f}.c-ok{color:var(--accent-2);font-weight:500}

/* ===== marquee ===== */
.marquee{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--soft);overflow:hidden;padding:18px 0}
.marquee-track{display:flex;gap:26px;width:max-content;animation:scroll 34s linear infinite;white-space:nowrap}
.marquee-track span{font:600 14px/1 var(--mono);color:var(--ink-2);letter-spacing:.02em}
.marquee-track span:nth-child(even){color:var(--accent)}
@keyframes scroll{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ===== cards ===== */
.cards-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;transition:transform .22s,box-shadow .22s,border-color .22s}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--line-2)}
.card .ic{width:50px;height:50px;border-radius:13px;display:grid;place-items:center;background:var(--soft);font-size:22px;margin-bottom:18px}
.card h3{margin-bottom:9px}
.card p{color:var(--ink-2);font-size:15px}
.soft{background:var(--soft)}

/* ===== services / offers ===== */
.offers{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.offer{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;position:relative;overflow:hidden;transition:transform .22s,box-shadow .22s,border-color .22s}
.offer::before{content:"";position:absolute;inset:0 0 auto 0;height:3px;background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform .3s}
.offer:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--line-2)}
.offer:hover::before{transform:scaleX(1)}
.offer-head{display:flex;align-items:baseline;justify-content:space-between;gap:14px;margin-bottom:12px}
.offer-head h3{font-size:18px}
.price{font-family:var(--display);font-weight:700;color:var(--accent);font-size:19px;white-space:nowrap}
.price i{font-style:normal;font-size:13px;color:var(--muted);font-weight:600}
.offer p{color:var(--ink-2);font-size:15px;margin-bottom:18px}
.tag{display:inline-block;font:600 11.5px/1 var(--mono);letter-spacing:.05em;text-transform:uppercase;color:var(--accent);background:rgba(63,107,255,.08);padding:7px 11px;border-radius:999px}

/* ===== dark approach ===== */
.dark{background:var(--dark);color:#dfe5f5;overflow:hidden}
.dark h2{color:#fff}
.dark .kicker{color:var(--accent-2)}
.dark .lead{color:#9aa4c4}
.pipe{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.pstep{background:var(--dark-2);border:1px solid var(--dark-line);border-radius:var(--radius-sm);padding:22px;position:relative;transition:transform .2s,border-color .2s}
.pstep:hover{transform:translateY(-4px);border-color:#34406a}
.pstep b{display:block;font-family:var(--mono);font-size:12.5px;color:var(--accent-2);margin-bottom:9px;letter-spacing:.02em}
.pstep p{font-size:14px;color:#aab3d0}
.note{margin-top:30px;color:#697294;font-size:14px;font-family:var(--mono)}

/* ===== case study ===== */
.case{display:grid;grid-template-columns:1.1fr .9fr;gap:50px;align-items:start}
.case-copy .lead{margin-bottom:16px}
.tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:6px}
.tags span{font:500 12.5px/1 var(--mono);padding:8px 12px;border:1px solid var(--line-2);border-radius:999px;color:var(--ink-2);background:#fff}
.case-metrics{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.metric{background:var(--soft);border:1px solid var(--line);border-radius:var(--radius-sm);padding:20px}
.metric b{display:block;font-family:var(--display);font-size:26px;font-weight:700;color:var(--accent);letter-spacing:-.02em}
.metric small{color:var(--muted);font-size:12.5px}
.metric-note{grid-column:1/-1;color:var(--muted);font-size:13px;margin-top:2px}

/* ===== process timeline ===== */
.timeline{display:grid;grid-template-columns:repeat(5,1fr);gap:20px;position:relative}
.tstep{position:relative;padding-top:8px}
.tstep .num{font-family:var(--display);font-weight:800;font-size:15px;color:#fff;background:var(--grad);width:40px;height:40px;border-radius:11px;display:grid;place-items:center;box-shadow:0 8px 18px rgba(63,107,255,.3);margin-bottom:16px}
.tstep h3{font-size:16px;margin-bottom:7px}
.tstep p{font-size:14px;color:var(--ink-2)}

/* ===== about ===== */
.about{display:grid;grid-template-columns:.85fr 1.15fr;gap:54px;align-items:center}
.about-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow-sm);text-align:center}
.avatar{width:128px;height:128px;margin:0 auto 20px;border-radius:30px;background:var(--grad);display:grid;place-items:center;color:#fff;font-family:var(--display);font-weight:800;font-size:52px;box-shadow:0 16px 36px rgba(63,107,255,.32)}
.about-meta b{font-family:var(--display);font-size:19px;display:block}
.about-meta span{color:var(--muted);font-size:14px}
.chips{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:16px}
.chips i{font:500 12px/1 var(--mono);font-style:normal;padding:7px 12px;border:1px solid var(--line);border-radius:999px;color:var(--ink-2)}
.about h2{margin:14px 0 16px}
.about .lead{margin-bottom:14px}
.about .btn{margin-top:10px}

/* ===== faq ===== */
.faq{display:flex;flex-direction:column;gap:12px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:4px 22px;transition:border-color .2s,box-shadow .2s}
.faq details[open]{border-color:var(--line-2);box-shadow:var(--shadow-sm)}
.faq summary{font-family:var(--display);font-weight:600;font-size:16.5px;padding:18px 0;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:var(--font);font-weight:400;font-size:24px;color:var(--accent);transition:transform .25s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{color:var(--ink-2);font-size:15px;padding:0 0 20px}

/* ===== contact ===== */
.cta-band{background:var(--dark);color:#fff;border-radius:28px;padding:64px 48px;text-align:center;position:relative;overflow:hidden}
.cta-band .kicker{color:var(--accent-2)}
.cta-band h2{color:#fff;margin:14px 0 16px;position:relative}
.cta-band .lead{color:#9aa4c4;margin:0 auto 30px;position:relative}
.btn-row{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;position:relative}

/* ===== footer ===== */
footer{border-top:1px solid var(--line);padding:40px 0;color:var(--muted);font-size:14px}
.foot{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.foot-links a{color:var(--ink-2)}
.foot-links a:hover{color:var(--accent)}

/* ===== reveal animation ===== */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s cubic-bezier(.2,.7,.2,1),transform .6s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none}.marquee-track,.pulse-dot{animation:none}}

/* ===== responsive ===== */
@media(max-width:920px){
  .hero-grid,.case,.about{grid-template-columns:1fr;gap:40px}
  .about-card{max-width:360px;margin:0 auto}
  .cards-3,.offers,.pipe{grid-template-columns:1fr 1fr}
  .timeline{grid-template-columns:1fr 1fr}
  .nav-links{position:fixed;inset:74px 12px auto 12px;flex-direction:column;align-items:stretch;gap:0;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);padding:8px;max-height:0;overflow:hidden;opacity:0;pointer-events:none;transition:max-height .28s,opacity .2s}
  .nav-links.open{max-height:380px;opacity:1;pointer-events:auto}
  .nav-links a{padding:14px 16px}
  .nav-links .btn{margin:6px 8px 8px;justify-content:center}
  .menu-btn{display:flex}
  section{padding:76px 0}
}
@media(max-width:560px){
  .cards-3,.offers,.pipe,.timeline,.case-metrics{grid-template-columns:1fr}
  .stats{gap:24px}
  .cta-band{padding:40px 22px}
  .hero{padding:56px 0 40px}
}