/* ============ bexline design system ============
   Black + red core. Neon topic accents per service family. */

:root{
  --bg:#0a0a0a; --bg2:#0f0f10; --panel:#151517; --panel2:#1b1b1e;
  --line:#232326; --line2:#333338;
  --ink:#f5f4f2; --muted:#a3a3a6; --dim:#69696e;
  --red:#ff3644; --red-btn:#e11827; --red-btn-h:#f52735;
  --acc:var(--red);
  --acc-soft:rgba(255,54,68,.12);
  /* neon topic accents */
  --n-ai:#b57bff; --n-tools:#22d3ee; --n-knowledge:#fbbf24;
  --n-web:#4d9fff; --n-ecom:#34d399; --n-cro:#a3e635;
  --n-seo:#2dd4bf; --n-marketing:#f472b6; --n-brand:#e879f9;
  --n-data:#38bdf8; --n-finance:#10b981; --n-compliance:#fb923c;
  --max:1140px; --r:16px; --r-lg:22px;
  --sans:'DM Sans',-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --mono:'JetBrains Mono',ui-monospace,Menlo,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.65 var(--sans);-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit}
img{max-width:100%}
::selection{background:var(--red-btn);color:#fff}

.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
.mono{font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(15,14,12,.78);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:68px;gap:20px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.brand img{height:26px;width:auto;display:block}
.nav{display:flex;align-items:center;gap:4px}
.nav a{text-decoration:none;font-size:14.5px;color:var(--muted);padding:8px 13px;border-radius:10px;transition:.18s}
.nav a:hover{color:var(--ink);background:var(--panel)}
.nav a.active{color:var(--ink)}
.nav a.cta{background:var(--red-btn);color:#fff;font-weight:600;margin-left:8px}
.nav a.cta:hover{background:var(--red-btn-h);color:#fff}
.nav a.lang{border:1px solid var(--line);font-family:var(--mono);font-size:11px;letter-spacing:.1em;padding:7px 11px}
.burger{display:none;background:none;border:1px solid var(--line);border-radius:10px;color:var(--ink);padding:8px 12px;font-size:18px;cursor:pointer}

/* ---------- hero ---------- */
.hero{position:relative;padding:104px 0 88px;overflow:hidden}
.hero.compact{padding:84px 0 56px}
.hero-bg{position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(700px 420px at 18% 8%, color-mix(in srgb,var(--tc,var(--red)) 12%,transparent), transparent 65%),
    radial-gradient(600px 400px at 85% 30%, rgba(181,123,255,.07), transparent 65%),
    radial-gradient(500px 380px at 55% 95%, rgba(34,211,238,.06), transparent 65%)}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--tc,var(--acc));margin:0 0 22px}
.eyebrow:before{content:"";width:26px;height:1px;background:var(--tc,var(--acc))}
h1{font-size:clamp(36px,5.6vw,62px);line-height:1.04;letter-spacing:-.025em;margin:0 0 22px;font-weight:700}
h1 .dim{color:var(--dim)}
h1 .hl{color:var(--tc,var(--acc))}
.lede{font-size:clamp(17px,2vw,20px);color:var(--muted);max-width:640px;margin:0 0 34px}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:9px;text-decoration:none;font-weight:600;font-size:15px;background:var(--red-btn);color:#fff;padding:14px 26px;border-radius:12px;border:0;cursor:pointer;transition:.2s;font-family:var(--sans)}
.btn:hover{transform:translateY(-2px);background:var(--red-btn-h);box-shadow:0 12px 34px rgba(225,24,39,.35)}
.btn.ghost{background:transparent;color:var(--ink);border:1px solid var(--line2)}
.btn.ghost:hover{border-color:var(--tc,var(--acc));color:var(--tc,var(--acc));box-shadow:none}
.btn.sm{padding:10px 18px;font-size:14px}
.btn-row{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- sections ---------- */
section{padding:76px 0}
section.alt{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
h2{font-size:clamp(26px,3.4vw,38px);letter-spacing:-.02em;line-height:1.12;margin:0 0 14px;font-weight:700}
h3{font-size:19px;margin:0 0 8px;font-weight:600}
.sub{color:var(--muted);max-width:640px;margin:0 0 44px;font-size:17px}
.center{text-align:center}
.center .sub{margin-left:auto;margin-right:auto}

/* key phrase banner */
.keyline{padding:64px 0}
.keyline blockquote{margin:0;font-size:clamp(22px,3.4vw,34px);line-height:1.3;letter-spacing:-.015em;font-weight:600;max-width:820px}
.keyline blockquote em{font-style:normal;color:var(--tc,var(--acc))}
.keyline .mono{color:var(--dim);margin-top:18px;display:block}

/* ---------- cards & grids ---------- */
.grid{display:grid;gap:16px}
.g2{grid-template-columns:1fr 1fr}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:26px;transition:.22s;position:relative}
.card:hover{border-color:var(--line2);transform:translateY(-3px)}
.card .num{font-family:var(--mono);font-size:12px;color:var(--tc,var(--acc));letter-spacing:.12em}
.card p{color:var(--muted);font-size:14.5px;margin:8px 0 0}
.card h3 a{text-decoration:none}
.card h3 a:after{content:"";position:absolute;inset:0}
.card .tag{display:inline-block;font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--dim);border:1px solid var(--line);border-radius:99px;padding:3px 10px;margin:14px 6px 0 0}
.card.featured{border-color:color-mix(in srgb,var(--tc,var(--acc)) 42%,transparent);background:linear-gradient(180deg,color-mix(in srgb,var(--tc,var(--acc)) 7%,transparent),var(--panel) 55%)}

/* stat tiles */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.stat{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:22px}
.stat .big{font-size:32px;font-weight:700;letter-spacing:-.02em;font-family:var(--mono)}
.stat .big span{color:var(--tc,var(--acc))}
.stat .lbl{color:var(--muted);font-size:13.5px;margin-top:4px}

/* checklist */
.checks{list-style:none;padding:0;margin:0;display:grid;gap:11px}
.checks li{padding-left:30px;position:relative;color:var(--muted);font-size:15.5px}
.checks li:before{content:"";position:absolute;left:0;top:7px;width:16px;height:16px;border-radius:5px;background:color-mix(in srgb,var(--tc,var(--acc)) 13%,transparent);border:1px solid var(--tc,var(--acc))}
.checks li:after{content:"";position:absolute;left:5px;top:11px;width:6px;height:3px;border-left:2px solid var(--tc,var(--acc));border-bottom:2px solid var(--tc,var(--acc));transform:rotate(-45deg)}
.checks li b{color:var(--ink)}

/* split layout */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.split.rev{grid-template-columns:.95fr 1.05fr}

/* ---------- system map (interactive nodes) ---------- */
.sysmap{position:relative;height:430px;border:1px solid var(--line);border-radius:var(--r-lg);background:
  radial-gradient(400px 260px at 50% 50%, rgba(255,54,68,.06), transparent 70%), var(--bg2);overflow:hidden}
.sysmap svg{position:absolute;inset:0;width:100%;height:100%}
.sysmap .edge{stroke:var(--line2);stroke-width:1.2;opacity:.7}
.sysmap .pulse{fill:var(--tc,var(--red))}
.node{position:absolute;transform:translate(-50%,-50%);background:var(--panel);border:1px solid color-mix(in srgb,var(--tc,var(--line2)) 45%,var(--line2));border-radius:12px;padding:9px 14px;font-size:12.5px;font-family:var(--mono);letter-spacing:.04em;white-space:nowrap;cursor:default;transition:.2s;z-index:2}
.node:hover{border-color:var(--tc,var(--red));color:var(--tc,var(--red));transform:translate(-50%,-50%) scale(1.07)}
.node.core{background:var(--red-btn);color:#fff;font-weight:700;border-color:var(--red-btn);font-size:13px;padding:12px 18px}

/* ---------- process rail ---------- */
.rail{display:grid;gap:0;position:relative;margin-top:10px}
.rail .step{display:grid;grid-template-columns:64px 1fr;gap:22px;padding:26px 0;border-top:1px solid var(--line);position:relative}
.rail .step:last-child{border-bottom:1px solid var(--line)}
.rail .step .n{font-family:var(--mono);font-size:22px;color:var(--tc,var(--acc))}
.rail .step h3{margin-bottom:6px}
.rail .step p{color:var(--muted);margin:0;max-width:640px}
.rail .step .mono{color:var(--dim);margin-top:10px;display:block}

/* ---------- marquee (tools strip) ---------- */
.marquee{overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:20px 0;background:var(--bg2)}
.marquee-track{display:flex;gap:52px;width:max-content;animation:scroll 42s linear infinite}
.marquee-track span{font-family:var(--mono);font-size:14px;color:var(--dim);letter-spacing:.08em;white-space:nowrap}
.marquee:hover .marquee-track{animation-play-state:paused}
@keyframes scroll{to{transform:translateX(-50%)}}

/* ---------- accordion ---------- */
details.acc{border:1px solid var(--line);border-radius:14px;background:var(--panel);margin-bottom:10px;overflow:hidden}
details.acc summary{cursor:pointer;padding:18px 22px;font-weight:600;font-size:16px;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:14px}
details.acc summary::-webkit-details-marker{display:none}
details.acc summary:after{content:"+";font-family:var(--mono);color:var(--tc,var(--acc));font-size:19px;transition:.2s}
details.acc[open] summary:after{transform:rotate(45deg)}
details.acc .acc-body{padding:0 22px 20px;color:var(--muted);font-size:15px}
details.acc .acc-body ul{margin:8px 0;padding-left:20px}

/* ---------- forms ---------- */
.form{display:grid;gap:16px;max-width:640px}
.form label{font-size:13.5px;color:var(--muted);display:grid;gap:7px;font-weight:500}
.form input,.form textarea,.form select{background:var(--panel);border:1px solid var(--line2);border-radius:11px;color:var(--ink);padding:13px 15px;font:15px var(--sans);width:100%}
.form input:focus,.form textarea:focus,.form select:focus{outline:none;border-color:var(--red)}
.svc-picker{display:flex;flex-wrap:wrap;gap:8px}
.svc-picker input{display:none}
.svc-picker span{display:inline-block;border:1px solid var(--line2);border-radius:99px;padding:8px 15px;font-size:13.5px;color:var(--muted);cursor:pointer;transition:.15s;user-select:none}
.svc-picker input:checked+span{background:var(--acc-soft);border-color:var(--red);color:var(--red)}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--line);padding:56px 0 30px;background:var(--bg2)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;margin-bottom:40px}
.foot-grid h4{font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--dim);margin:0 0 14px}
.foot-grid a{display:block;text-decoration:none;color:var(--muted);font-size:14px;padding:4px 0;transition:.15s}
.foot-grid a:hover{color:var(--red)}
.foot-brand p{color:var(--dim);font-size:13.5px;max-width:260px;margin:12px 0 0}
.foot-base{border-top:1px solid var(--line);padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;color:var(--dim);font-size:13px}
.foot-base a{color:var(--dim);text-decoration:none}
.foot-base a:hover{color:var(--red)}

/* ---------- reveal on scroll ---------- */
.rv{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
.rv.in{opacity:1;transform:none}
.rv-d1{transition-delay:.08s}.rv-d2{transition-delay:.16s}.rv-d3{transition-delay:.24s}

/* ---------- misc ---------- */
.pill-row{display:flex;flex-wrap:wrap;gap:9px;margin-top:20px}
.pill{border:1px solid var(--line2);border-radius:99px;padding:8px 16px;font-size:13.5px;color:var(--muted)}
.pill b{color:var(--tc,var(--acc));font-weight:600}
.crumb{font-family:var(--mono);font-size:12px;letter-spacing:.1em;color:var(--dim);text-transform:uppercase;margin-bottom:26px;display:block}
.crumb a{color:var(--dim);text-decoration:none}
.crumb a:hover{color:var(--tc,var(--acc))}
.divider{height:1px;background:var(--line);border:0;margin:0}
.badge-row{display:flex;align-items:center;gap:34px;flex-wrap:wrap;opacity:.85}
.badge-row img{height:42px;width:auto;filter:grayscale(30%);transition:.2s}
.badge-row img:hover{filter:none}
.cta-final{text-align:center;padding:96px 0}
.cta-final h2{margin-bottom:12px}
.cta-final .sub{margin:0 auto 30px}

/* ---------- responsive ---------- */
@media(max-width:960px){
  .g3,.g4{grid-template-columns:1fr 1fr}
  .stats{grid-template-columns:1fr 1fr}
  .split,.split.rev{grid-template-columns:1fr;gap:34px}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:680px){
  .nav{position:fixed;inset:68px 0 auto 0;background:var(--bg);border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;padding:14px 20px 22px;display:none}
  .nav.open{display:flex}
  .nav a{padding:13px 12px;font-size:16px}
  .burger{display:block}
  .g2,.g3,.g4{grid-template-columns:1fr}
  .sysmap{height:520px}
  section{padding:56px 0}
  .hero{padding:70px 0 56px}
}
@media(prefers-reduced-motion:reduce){
  .rv{opacity:1;transform:none;transition:none}
  .marquee-track{animation:none}
}

/* ---------- topic accents (neon per service family) ---------- */
.t-ai{--tc:var(--n-ai)}.t-tools{--tc:var(--n-tools)}.t-knowledge{--tc:var(--n-knowledge)}
.t-web{--tc:var(--n-web)}.t-ecom{--tc:var(--n-ecom)}.t-cro{--tc:var(--n-cro)}
.t-seo{--tc:var(--n-seo)}.t-marketing{--tc:var(--n-marketing)}.t-brand{--tc:var(--n-brand)}
.t-data{--tc:var(--n-data)}.t-finance{--tc:var(--n-finance)}.t-compliance{--tc:var(--n-compliance)}
.node:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--tc,var(--dim));display:inline-block;margin-right:8px;vertical-align:1px}
.node.core:before{display:none}
a.tclink{color:var(--tc,var(--acc))}