/* ============================================
   BLCKBX BUSINESS SITE — SHARED STYLES
   One source of truth for every page.
   ============================================ */
:root{
  --black:#0f0f0f;
  --panel:#161616;
  --panel-2:#1c1c1c;
  --line:#2a2a2a;
  --purple:#8b5cf6;
  --purple-2:#9333ea;
  --purple-dim:#6d28d9;
  --text:#f5f5f5;
  --muted:#a1a1aa;
  --muted-2:#71717a;
  --warn:#e4a0a0;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  background:var(--black);
  color:var(--text);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* NAV */
nav{
  position:sticky;top:0;z-index:100;
  background:rgba(15,15,15,.85);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{font-weight:800;font-size:24px;letter-spacing:-.03em}
.brand span{color:var(--purple)}
.nav-links{display:flex;gap:32px;align-items:center}
.nav-links a{color:var(--muted);font-size:14px;font-weight:500;transition:color .2s}
.nav-links a:hover{color:var(--text)}
.nav-links a.active{color:var(--text)}
.nav-cta{
  background:var(--purple)!important;color:#fff!important;padding:9px 18px;border-radius:8px;
  font-size:14px;font-weight:600;transition:background .2s
}
.nav-cta:hover{background:var(--purple-2)!important}
.nav-toggle{display:none;background:none;border:0;color:var(--text);font-size:24px;cursor:pointer}

/* BUTTONS */
.btn-primary{
  background:var(--purple);color:#fff;padding:14px 28px;border-radius:10px;
  font-weight:600;font-size:16px;display:inline-block;transition:background .2s,transform .1s
}
.btn-primary:hover{background:var(--purple-2);transform:translateY(-1px)}
.btn-ghost{
  border:1px solid var(--line);color:var(--text);padding:14px 28px;border-radius:10px;
  font-weight:600;font-size:16px;display:inline-block;transition:border-color .2s,background .2s
}
.btn-ghost:hover{border-color:var(--purple);background:rgba(139,92,246,.06)}

/* PAGE HERO (interior pages) */
.page-hero{padding:90px 0 56px;position:relative;overflow:hidden}
.page-hero::before{
  content:"";position:absolute;top:-200px;left:50%;transform:translateX(-50%);
  width:900px;height:520px;
  background:radial-gradient(ellipse at center,rgba(139,92,246,.15),transparent 70%);
  pointer-events:none;
}
.page-hero .eyebrow{display:inline-block;color:var(--purple);font-size:13px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;margin-bottom:16px;border:1px solid var(--purple-dim);padding:6px 14px;border-radius:100px;background:rgba(139,92,246,.08)}
.page-hero h1{font-size:clamp(36px,5.5vw,60px);font-weight:800;letter-spacing:-.03em;line-height:1.05;margin-bottom:18px;max-width:820px}
.page-hero p{font-size:clamp(17px,2.2vw,20px);color:var(--muted);max-width:640px}

/* SECTION SHELL */
section.block{padding:80px 0}
.section-head{max-width:680px;margin-bottom:52px}
.section-head .eyebrow{color:var(--purple);font-size:13px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;margin-bottom:14px}
.section-head h2{font-size:clamp(28px,4vw,42px);font-weight:800;letter-spacing:-.02em;line-height:1.1;margin-bottom:16px}
.section-head p{color:var(--muted);font-size:18px}
.alt-bg{background:var(--panel);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* FOOTER */
footer{border-top:1px solid var(--line);padding:60px 0 40px;background:var(--panel)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:48px}
.footer-brand .brand{font-size:22px;margin-bottom:12px;display:inline-block}
.footer-brand p{color:var(--muted);font-size:14px;max-width:280px}
.footer-col h4{font-size:13px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted-2);margin-bottom:16px;font-weight:600}
.footer-col a{display:block;color:var(--muted);font-size:14px;margin-bottom:10px;transition:color .2s}
.footer-col a:hover{color:var(--text)}
.footer-bottom{border-top:1px solid var(--line);padding-top:28px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.footer-bottom p{color:var(--muted-2);font-size:13px}

@media(max-width:860px){
  .nav-links{display:none}
  .nav-toggle{display:block}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media(max-width:520px){
  .footer-grid{grid-template-columns:1fr}
}