/* ============================================================
   The BBF Group — Design System
   ============================================================ */
:root{
  --ink:#2B3139;
  --ink-900:#20252b;
  --ink-800:#262c33;
  --ink-700:#3a424c;
  --paper:#ffffff;
  --mist:#f4f6f8;
  --mist-2:#eef1f4;
  --line:#e2e7ec;
  --muted:#5c6672;
  --muted-2:#7a828d;
  --accent:#2f6feb;
  --accent-600:#1f57c9;
  --accent-050:#eaf1fe;
  --cyan:#43c6e8;
  --ok:#1a9e6e;

  --maxw:1160px;
  --radius:14px;
  --radius-sm:10px;
  --shadow-sm:0 1px 2px rgba(20,25,31,.06), 0 2px 6px rgba(20,25,31,.05);
  --shadow-md:0 6px 20px rgba(20,25,31,.08), 0 2px 6px rgba(20,25,31,.05);
  --shadow-lg:0 18px 48px rgba(20,25,31,.16);
  --font-body:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  --font-head:'Sora','Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --ease:cubic-bezier(.2,.7,.2,1);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--paper);
  line-height:1.65;
  font-size:17px;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{margin:0;padding:0;list-style:none}

h1,h2,h3,h4{font-family:var(--font-head);color:var(--ink-900);line-height:1.15;margin:0;font-weight:700;letter-spacing:-.02em}
h1{font-size:clamp(2.3rem,5vw,3.6rem)}
h2{font-size:clamp(1.7rem,3.4vw,2.5rem)}
h3{font-size:1.22rem}
p{margin:0 0 1rem}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section--tight{padding:64px 0}
.mist{background:var(--mist)}
.center{text-align:center}
.eyebrow{
  display:inline-block;font-family:var(--font-head);font-weight:600;
  font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--accent);margin-bottom:14px;
}
.eyebrow--light{color:var(--cyan)}
.lead{font-size:1.18rem;color:var(--muted);max-width:62ch}
.center .lead{margin-left:auto;margin-right:auto}
.section-head{max-width:720px;margin:0 0 48px}
.center.section-head{margin-left:auto;margin-right:auto}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.55rem;
  font-family:var(--font-head);font-weight:600;font-size:.98rem;
  padding:14px 26px;border-radius:10px;cursor:pointer;border:1px solid transparent;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),color .18s;
  white-space:nowrap;
}
.btn svg{width:18px;height:18px}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 18px rgba(47,111,235,.35)}
.btn-primary:hover{background:var(--accent-600);transform:translateY(-2px);box-shadow:0 10px 26px rgba(47,111,235,.42)}
.btn-ghost{background:transparent;color:var(--ink-900);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--ink-700);transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--ink-900)}
.btn-light:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.35)}
.btn-outline-light:hover{border-color:#fff;background:rgba(255,255,255,.08);transform:translateY(-2px)}
.btn-row{display:flex;gap:14px;flex-wrap:wrap}
.center .btn-row{justify-content:center}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.85);
  backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px}
.brand{display:flex;align-items:center;gap:12px}
.brand-logo{height:34px;width:auto;display:block}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{
  font-family:var(--font-head);font-weight:500;font-size:.96rem;color:var(--ink-700);
  padding:9px 15px;border-radius:8px;transition:color .15s,background .15s;
}
.nav-links a:hover{color:var(--ink-900);background:var(--mist)}
.nav-links a.active{color:var(--accent)}
.nav-cta{margin-left:10px}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--ink-900);margin:5px 0;transition:.25s var(--ease)}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;color:#eef1f5;
  background:
    radial-gradient(1100px 500px at 78% -10%, rgba(67,198,232,.16), transparent 60%),
    radial-gradient(900px 500px at 10% 110%, rgba(47,111,235,.20), transparent 55%),
    linear-gradient(160deg,#20252b 0%,#2B3139 55%,#323b45 100%);
}
.hero::before{
  content:"";position:absolute;inset:0;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:54px 54px;
  mask-image:radial-gradient(900px 600px at 70% 20%,#000,transparent 75%);
}
.hero-inner{position:relative;z-index:1;padding:104px 0 108px;max-width:820px}
.hero h1{color:#fff}
.hero h1 .grad{background:linear-gradient(90deg,#7fd6ee,#5b8dff);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{color:#c3ccd6;font-size:1.24rem;max-width:60ch;margin:22px 0 34px}
.hero .btn-row{margin-top:6px}
.chip{
  display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.16);color:#dbe4ee;border-radius:999px;
  padding:7px 16px;font-size:.85rem;font-weight:500;font-family:var(--font-head);
  backdrop-filter:blur(6px);
}
.chip .dot{width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 4px rgba(67,198,232,.22)}
.hero-meta{display:flex;gap:28px;flex-wrap:wrap;margin-top:44px;padding-top:30px;border-top:1px solid rgba(255,255,255,.12)}
.hero-meta div{min-width:120px}
.hero-meta .n{font-family:var(--font-head);font-weight:700;font-size:1.7rem;color:#fff}
.hero-meta .l{font-size:.86rem;color:#9aa6b2}

/* ---------- Trust bar ---------- */
.trust{padding:30px 0;border-bottom:1px solid var(--line)}
.trust-inner{display:flex;align-items:center;gap:14px 40px;flex-wrap:wrap;justify-content:center}
.trust-label{font-family:var(--font-head);font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted-2)}
.trust-badges{display:flex;gap:14px 30px;flex-wrap:wrap;align-items:center}
.trust-badges span{font-family:var(--font-head);font-weight:600;color:var(--muted);font-size:.98rem;opacity:.85}

/* ---------- Cards / grid ---------- */
.grid{display:grid;gap:24px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}

.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:30px;box-shadow:var(--shadow-sm);transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s;
  height:100%;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#d3dae1}
.card .ico{
  width:52px;height:52px;border-radius:12px;display:grid;place-items:center;margin-bottom:18px;
  background:linear-gradient(150deg,var(--accent-050),#fff);border:1px solid var(--line);color:var(--accent);
}
.card .ico svg{width:26px;height:26px}
.card h3{margin-bottom:8px}
.card p{color:var(--muted);font-size:.98rem;margin:0}
.card--dark{background:linear-gradient(160deg,#262c33,#2B3139);border-color:#39424d;color:#dfe5ec}
.card--dark h3{color:#fff}
.card--dark p{color:#aeb8c3}
.card--dark .ico{background:rgba(67,198,232,.12);border-color:rgba(67,198,232,.25);color:var(--cyan)}

/* ---------- Split feature ---------- */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center}
.split.rev .split-media{order:2}
.checklist li{position:relative;padding:10px 0 10px 34px;border-bottom:1px solid var(--line);color:var(--ink-700)}
.checklist li:last-child{border-bottom:0}
.checklist li::before{
  content:"";position:absolute;left:0;top:14px;width:20px;height:20px;border-radius:50%;
  background:var(--accent-050);
}
.checklist li::after{
  content:"";position:absolute;left:6px;top:18px;width:8px;height:4px;border-left:2px solid var(--accent);
  border-bottom:2px solid var(--accent);transform:rotate(-45deg);
}
.media-card{
  border-radius:var(--radius);padding:38px;color:#e7ecf2;position:relative;overflow:hidden;
  background:radial-gradient(600px 300px at 20% 0%,rgba(67,198,232,.18),transparent 60%),linear-gradient(160deg,#232931,#2B3139);
  box-shadow:var(--shadow-lg);
}
.media-card .kpi{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:8px}
.media-card .kpi .n{font-family:var(--font-head);font-weight:700;font-size:2rem;color:#fff}
.media-card .kpi .l{color:#a7b2bd;font-size:.86rem}
.media-card .bar{height:8px;border-radius:99px;background:rgba(255,255,255,.1);margin-top:6px;overflow:hidden}
.media-card .bar i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--cyan),var(--accent))}

/* ---------- Process steps ---------- */
.steps{counter-reset:step;display:grid;gap:22px}
.step{display:flex;gap:20px;align-items:flex-start;padding:24px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm)}
.step .num{
  counter-increment:step;flex:0 0 auto;width:46px;height:46px;border-radius:12px;
  display:grid;place-items:center;font-family:var(--font-head);font-weight:700;color:#fff;
  background:linear-gradient(150deg,var(--accent),var(--accent-600));
}
.step .num::before{content:counter(step,decimal-leading-zero)}
.step h3{margin-bottom:4px}
.step p{margin:0;color:var(--muted);font-size:.97rem}

/* ---------- Service page rows ---------- */
.svc{
  display:grid;grid-template-columns:auto 1fr;gap:22px;padding:30px;border:1px solid var(--line);
  border-radius:var(--radius);background:#fff;box-shadow:var(--shadow-sm);transition:box-shadow .2s,transform .2s var(--ease),border-color .2s;
}
.svc:hover{box-shadow:var(--shadow-md);transform:translateY(-3px);border-color:#d3dae1}
.svc .ico{width:56px;height:56px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(150deg,#eaf1fe,#fff);border:1px solid var(--line);color:var(--accent)}
.svc .ico svg{width:28px;height:28px}
.svc h3{margin-bottom:8px}
.svc p{color:var(--muted);margin:0 0 14px;font-size:.98rem}
.tags{display:flex;flex-wrap:wrap;gap:8px}
.tag{font-family:var(--font-head);font-size:.78rem;font-weight:600;color:var(--ink-700);background:var(--mist-2);border:1px solid var(--line);padding:5px 11px;border-radius:999px}

/* ---------- CTA band ---------- */
.cta{
  position:relative;overflow:hidden;border-radius:22px;padding:64px;color:#fff;text-align:center;
  background:
    radial-gradient(700px 300px at 85% -20%,rgba(67,198,232,.22),transparent 60%),
    radial-gradient(700px 340px at 0% 120%,rgba(47,111,235,.28),transparent 55%),
    linear-gradient(160deg,#20252b,#2B3139);
  box-shadow:var(--shadow-lg);
}
.cta h2{color:#fff;margin-bottom:14px}
.cta p{color:#c3ccd6;max-width:56ch;margin:0 auto 30px;font-size:1.12rem}

/* ---------- Page hero (inner pages) ---------- */
.page-hero{
  color:#eef1f5;position:relative;overflow:hidden;
  background:
    radial-gradient(900px 400px at 80% -30%,rgba(67,198,232,.14),transparent 60%),
    linear-gradient(160deg,#20252b,#2B3139);
}
.page-hero::before{
  content:"";position:absolute;inset:0;opacity:.45;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:50px 50px;mask-image:radial-gradient(700px 400px at 75% 0%,#000,transparent 80%);
}
.page-hero-inner{position:relative;z-index:1;padding:76px 0}
.page-hero h1{color:#fff}
.page-hero p{color:#c3ccd6;font-size:1.16rem;max-width:60ch;margin-top:16px}
.breadcrumb{font-size:.85rem;color:#93a0ac;margin-bottom:16px;font-family:var(--font-head)}
.breadcrumb a:hover{color:#cdd6df}

/* ---------- Contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:48px;align-items:start}
.info-item{display:flex;gap:16px;padding:18px 0;border-bottom:1px solid var(--line)}
.info-item:last-child{border-bottom:0}
.info-item .ico{flex:0 0 auto;width:46px;height:46px;border-radius:12px;display:grid;place-items:center;background:var(--accent-050);color:var(--accent)}
.info-item .ico svg{width:22px;height:22px}
.info-item h4{font-family:var(--font-head);margin:0 0 2px;font-size:1rem;color:var(--ink-900)}
.info-item p{margin:0;color:var(--muted);font-size:.96rem}
.form{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:34px;box-shadow:var(--shadow-md)}
.field{margin-bottom:18px}
.field label{display:block;font-family:var(--font-head);font-weight:600;font-size:.86rem;margin-bottom:7px;color:var(--ink-800)}
.field input,.field select,.field textarea{
  width:100%;padding:13px 15px;border:1px solid var(--line);border-radius:10px;font:inherit;font-size:.98rem;
  color:var(--ink-900);background:#fff;transition:border-color .15s,box-shadow .15s;
}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-050)}
.field textarea{resize:vertical;min-height:130px}
.form-note{font-size:.85rem;color:var(--muted-2);margin:14px 0 0}
.form-success{display:none;background:#eaf7f1;border:1px solid #bfe6d4;color:#12694a;padding:14px 16px;border-radius:10px;margin-bottom:18px;font-size:.95rem}
.form-success.show{display:block}
.form-error{display:none;background:#fdecec;border:1px solid #f3c2c2;color:#a12626;padding:14px 16px;border-radius:10px;margin-bottom:18px;font-size:.95rem}
.form-error.show{display:block}
.hp-field{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.btn[disabled]{opacity:.65;cursor:not-allowed;transform:none}

/* ---------- Values / about ---------- */
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.stat{padding:26px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);text-align:center;box-shadow:var(--shadow-sm)}
.stat .n{font-family:var(--font-head);font-weight:700;font-size:2.1rem;color:var(--ink-900)}
.stat .n span{color:var(--accent)}
.stat .l{color:var(--muted);font-size:.92rem;margin-top:4px}

.quote{max-width:820px;margin:0 auto;text-align:center}
.quote blockquote{font-family:var(--font-head);font-weight:600;font-size:clamp(1.3rem,2.6vw,1.9rem);line-height:1.4;color:var(--ink-900);letter-spacing:-.01em;margin:0 0 20px}
.quote cite{font-style:normal;color:var(--muted);font-size:.98rem}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink-900);color:#aab4bf;padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.09)}
.footer-brand .brand-logo{height:42px}
.footer-brand p{margin:18px 0 0;color:#8b96a2;font-size:.95rem;max-width:34ch}
.site-footer h5{font-family:var(--font-head);color:#fff;font-size:.82rem;letter-spacing:.12em;text-transform:uppercase;margin:0 0 16px}
.site-footer .footer-links a{display:block;padding:6px 0;color:#9aa5b1;font-size:.95rem;transition:color .15s}
.site-footer .footer-links a:hover{color:#fff}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:24px;font-size:.86rem;color:#7f8a96}
.footer-bottom a:hover{color:#cdd6df}

/* ---------- Reveal animation ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media (max-width:960px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:36px}
  .split.rev .split-media{order:0}
  .contact-grid{grid-template-columns:1fr;gap:36px}
  .stat-row{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:720px){
  body{font-size:16px}
  .section{padding:64px 0}
  .nav-links{
    position:absolute;top:74px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);
    flex-direction:column;align-items:stretch;gap:2px;padding:14px 18px 20px;
    box-shadow:var(--shadow-md);display:none;
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 14px}
  .nav-cta{margin:8px 0 0}
  .nav-toggle{display:block}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .cta{padding:44px 26px}
  .hero-inner{padding:72px 0 76px}
  .svc{grid-template-columns:1fr;gap:16px}
}
@media (max-width:460px){
  .stat-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero-meta{gap:20px}
}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}