/* ZereBros AI Site v0.2 */
:root{
  --zb-navy:#0B1F3A;
  --zb-deep:#050B1B;
  --zb-blue:#2563EB;
  --zb-blue-hover:#1D4ED8;
  --zb-cyan:#22D3EE;
  --zb-purple:#7C3AED;
  --zb-green:#10B981;
  --zb-pink:#EC4899;
  --zb-warning:#F59E0B;
  --zb-bg:#F8FAFC;
  --zb-surface:#FFFFFF;
  --zb-text:#111827;
  --zb-muted:#64748B;
  --zb-border:#E2E8F0;
  --zb-gradient-ai:linear-gradient(90deg,#2563EB 0%,#22D3EE 50%,#7C3AED 100%);
  --zb-gradient-dark:radial-gradient(circle at 75% 20%,rgba(37,99,235,.28),transparent 30%),radial-gradient(circle at 45% 45%,rgba(124,58,237,.20),transparent 34%),linear-gradient(135deg,#050B1B 0%,#07162E 52%,#0B1F3A 100%);
  --shadow:0 18px 45px rgba(15,23,42,.12);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--zb-bg);color:var(--zb-text)}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(1180px,calc(100% - 48px));margin-inline:auto}
.site-header{position:sticky;top:0;z-index:50;background:#060c24;backdrop-filter:blur(18px);border-bottom:1px solid rgba(226,232,240,.08)}
.nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand img{width:196px;height:auto}
.main-nav{display:flex;align-items:center;gap:26px;color:#D7E2F0;font-size:14px;font-weight:700}
.main-nav a{opacity:.9;position:relative}
.main-nav a:hover,.main-nav a.active{color:#fff;opacity:1}
.main-nav a.active:after{content:"";position:absolute;left:0;right:0;bottom:-10px;height:2px;border-radius:999px;background:var(--zb-gradient-ai)}
.nav-actions{display:flex;align-items:center;gap:12px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:14px 22px;font-weight:800;font-size:14px;border:1px solid transparent;transition:.22s ease;cursor:pointer}
.btn-primary{color:#fff;background:linear-gradient(90deg,#7C3AED,#2563EB);box-shadow:0 12px 28px rgba(37,99,235,.28)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 18px 36px rgba(37,99,235,.36)}
.btn-secondary{border-color:rgba(255,255,255,.34);color:#fff;background:rgba(255,255,255,.04)}
.btn-secondary:hover{background:rgba(255,255,255,.10)}
.whatsapp{width:42px;height:42px;border:2px solid transparent;border-radius:50%;display:grid;place-items:center;color:#10B981;font-weight:900;background:rgba(255,255,255,0.05);transition:transform 0.2s}
.whatsapp:hover{transform:scale(1.05);background:rgba(255,255,255,0.1)}
.section-dark{background:var(--zb-gradient-dark);color:#fff;position:relative;overflow:hidden}
.section-light{background:var(--zb-bg);color:var(--zb-text)}
.hero{padding:92px 0 42px;min-height:670px}
.hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(34,211,238,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(34,211,238,.04) 1px,transparent 1px);background-size:68px 68px;mask-image:linear-gradient(to bottom,black,transparent 82%);pointer-events:none}
.hero-grid{position:relative;display:grid;grid-template-columns:1.02fr .98fr;gap:46px;align-items:center}
.eyebrow,.kicker{display:inline-flex;align-items:center;gap:8px;text-transform:uppercase;letter-spacing:.08em;border-radius:999px;font-weight:900;font-size:12px;color:#A5B4FC}
.eyebrow{background:rgba(37,99,235,.16);padding:10px 16px;border:1px solid rgba(37,99,235,.22)}
.hero h1{font-size:48px;line-height:1.2;margin:28px 0 22px;letter-spacing:-.02em;max-width:760px;font-weight:800}
.hero h1 span,.grad-text{background:var(--zb-gradient-ai);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{max-width:620px;color:#CBD5E1;font-size:18px;line-height:1.6}
.hero-actions{display:flex;gap:16px;margin-top:34px;flex-wrap:wrap}
.hero-visual{filter:drop-shadow(0 30px 70px rgba(34,211,238,.20))}
.logos-row{margin-top:54px}
.logos-row small{display:block;text-transform:uppercase;letter-spacing:.12em;color:#94A3B8;font-weight:900;margin-bottom:18px}
.logos{display:flex;align-items:center;gap:28px;flex-wrap:wrap;color:#E2E8F0;font-weight:900;opacity:.86}
.logos span{display:inline-flex;align-items:center;gap:8px}
.logos span svg{opacity:0.8; transition:opacity 0.2s}
.logos span:hover svg{opacity:1}
.section{padding:86px 0}
.section-head{margin-bottom:34px}
.section-head h1,.section-head h2{font-size:36px;line-height:1.3;letter-spacing:-.01em;margin:8px 0 0;font-weight:700}
.section-head p{color:var(--zb-muted);font-size:16px;line-height:1.6}
.section-head.two-col{display:grid;grid-template-columns:1.05fr .95fr;gap:42px;align-items:end}
.section-head h2 span{color:var(--zb-blue)}
.link-head{display:flex;justify-content:space-between;gap:24px;align-items:end}
.link-head>a,.text-link{font-weight:900;color:var(--zb-blue)}
.card-grid{display:grid;gap:22px}
.card-grid.four{grid-template-columns:repeat(4,1fr)}
.card-grid.three{grid-template-columns:repeat(3,1fr)}
.card-grid.six{grid-template-columns:repeat(6,1fr)}
.card,.mini-card{background:#fff;border:1px solid var(--zb-border);border-radius:18px;padding:28px;box-shadow:0 10px 26px rgba(15,23,42,.05);transition:.22s ease}
.card:hover,.mini-card:hover{transform:translateY(-4px);box-shadow:0 0 15px rgba(37,99,235,0.6);border-color:#2563EB}
.card h3,.mini-card h3{font-size:24px;line-height:1.4;margin:18px 0 12px;font-weight:600}
.card p,.mini-card p{color:#475569;line-height:1.62;font-size:14px;margin:0}
.icon{width:48px;height:48px;border-radius:16px;display:grid;place-items:center;font-weight:900;font-size:22px}
.icon svg{width:24px;height:24px}
.icon.blue{color:var(--zb-blue);background:rgba(37,99,235,.10)}
.icon.purple{color:var(--zb-purple);background:rgba(124,58,237,.12)}
.icon.cyan{color:#0EA5E9;background:rgba(34,211,238,.13)}
.icon.green{color:var(--zb-green);background:rgba(16,185,129,.12)}
.icon.pink{color:var(--zb-pink);background:rgba(236,72,153,.12)}
.what{padding:82px 0}
.dark-cards .dark-card{padding:32px;border-radius:12px;background:#0f2444;border:1px solid rgba(59,130,246,0.3);box-shadow:none;transition:border-color 0.3s}
.dark-cards .dark-card:hover{border-color:rgba(59,130,246,0.6)}
.dark-card h3{font-size:20px;margin:0 0 12px;font-weight:700}
.dark-card p{color:#CBD5E1;line-height:1.65;font-size:14px;height:48px;margin-bottom:24px}
.dark-card ul{list-style:none;padding:0;margin:0;display:grid;gap:12px;color:#CBD5E1;font-size:14px}
.dark-card li{display:flex;align-items:flex-start;gap:8px}
.dark-card li:before{content:">";font-weight:900;color:#60a5fa}
.dark-card .icon{width:56px;height:56px;border-radius:12px;margin-bottom:24px;display:flex;align-items:center;justify-content:center}
.blue-card{border-color:rgba(59,130,246,0.3)!important}
.blue-card:hover{border-color:rgba(59,130,246,0.6)!important}
.blue-card .icon{background:rgba(59,130,246,0.2);border:1px solid rgba(59,130,246,0.3);color:#60a5fa}
.purple-card{border-color:rgba(168,85,247,0.3)!important}
.purple-card:hover{border-color:rgba(168,85,247,0.6)!important}
.purple-card .icon{background:rgba(168,85,247,0.2);border:1px solid rgba(168,85,247,0.3);color:#c084fc}
.purple-card li:before{color:#c084fc}
.cyan-card{border-color:rgba(20,184,166,0.3)!important}
.cyan-card:hover{border-color:rgba(20,184,166,0.6)!important}
.cyan-card .icon{background:rgba(20,184,166,0.2);border:1px solid rgba(20,184,166,0.3);color:#2dd4bf}
.cyan-card li:before{color:#2dd4bf}
.mini-card{padding:23px}
.mini-card small{display:block;margin-top:16px;color:#64748B;font-weight:800}
.mini-card h3{font-size:18px}
.method{padding:80px 0}
.timeline{position:relative;display:grid;grid-template-columns:repeat(8,1fr);gap:16px;padding-top:20px}
.timeline:before{content:"";position:absolute;left:4%;right:4%;top:44px;height:2px;background:rgba(255,255,255,0.1);opacity:1}
.step{text-align:center;position:relative;z-index:10;display:flex;flex-direction:column;align-items:center}
.step .step-icon{width:48px;height:48px;margin:0 auto 16px;border-radius:50%;background:#1e293b;border:2px solid #a855f7;color:#a855f7;display:flex;align-items:center;justify-content:center}
.step .step-num{font-size:12px;font-weight:700;color:#a855f7;margin-bottom:4px}
.step h3{font-size:14px;margin:0 0 8px;font-weight:700}
.step p{font-size:12px;color:#94a3b8;line-height:1.45;margin:0}
.integration-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;margin-top:36px}
.integration-grid article{background:#fff;border:1px solid var(--zb-border);border-radius:12px;padding:24px 16px;display:flex;flex-direction:column;align-items:center;gap:18px;box-shadow:0 4px 20px rgba(0,0,0,.04);transition:.22s ease}
.integration-grid article:hover{transform:translateY(-4px);box-shadow:0 10px 25px rgba(37,99,235,0.1);border-color:rgba(37,99,235,0.4)}
.integration-grid h3{font-size:14px;margin:0;font-weight:700;color:var(--zb-text);text-align:center}
.integration-icons{display:flex;gap:12px;align-items:center;justify-content:center}
.int-icon{display:grid;place-items:center;width:28px;height:28px}
.int-icon svg{width:100%;height:100%;fill:currentColor}
.text-link{display:block;text-align:center;margin-top:24px}
.cta-band{padding:58px 0}
.cta-grid{display:grid;grid-template-columns:1fr auto;gap:32px;align-items:center}
.cta-grid h2{font-size:34px;line-height:1.1;margin:0 0 10px}.cta-grid p{margin:0;color:#CBD5E1}.cta-actions{display:flex;gap:16px;flex-wrap:wrap}
.footer{background:#040A17;color:#CBD5E1;padding:56px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.4fr repeat(4,1fr);gap:42px}
.footer-logo{width:190px;margin-bottom:16px}
.footer h3{color:#fff;font-size:15px;margin:0 0 14px}.footer a,.footer p{display:block;color:#94A3B8;margin:0 0 10px;font-size:14px;line-height:1.55}
.footer-bottom{border-top:1px solid rgba(226,232,240,.08);display:flex;justify-content:space-between;gap:20px;margin-top:34px;padding-top:22px;color:#64748B;font-size:13px}
.page-hero{padding:92px 0 70px}
.page-hero h1{font-size:clamp(42px,5vw,68px);letter-spacing:-.055em;line-height:1.03;margin:16px 0}
.page-hero p{max-width:760px;color:#CBD5E1;font-size:18px;line-height:1.7}
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-card{background:#fff;border:1px solid var(--zb-border);border-radius:22px;padding:30px;box-shadow:0 10px 24px rgba(15,23,42,.05)}
.feature-card h2,.feature-card h3{margin:14px 0 10px;font-size:24px;letter-spacing:-.03em}
.feature-card p{color:#475569;line-height:1.65}
.feature-card ul{padding-left:18px;color:#475569;line-height:1.9}
.form-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:34px;align-items:start}
.form-card{background:#fff;border-radius:24px;padding:32px;box-shadow:var(--shadow);border:1px solid var(--zb-border)}
/* Founders */
.founders-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.founder-card { background: #f8fafc; border: 1px solid var(--zb-border); border-radius: 12px; padding: 32px; text-align: center; transition: .22s ease; }
.founder-card:hover { border-color: var(--zb-blue); box-shadow: 0 10px 25px rgba(37,99,235,0.08); }
.founder-img-wrapper { width: 96px; height: 96px; border-radius: 50%; overflow: hidden; margin: 0 auto 24px; background: #e2e8f0; }
.founder-img-wrapper img { width: 100%; height: 100%; object-fit: cover; }
.founder-info h3 { font-size: 24px; margin: 0 0 8px; color: var(--zb-text); font-weight: 700; }
.founder-role { font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; margin: 0 0 16px; }
.founder-role.blue { color: var(--zb-blue); }
.founder-role.purple { color: var(--zb-purple); }
.founder-role.cyan { color: #0EA5E9; }
.founder-desc { font-size: 14px; color: var(--zb-muted); line-height: 1.5; margin: 0; }

/* Differentiators */
.diff-card { background: #fff; border: 1px solid var(--zb-border); border-radius: 12px; padding: 24px; box-shadow: 0 2px 8px rgba(0,0,0,.02); }
.diff-card .icon { width: 48px; height: 48px; border-radius: 8px; margin-bottom: 16px; display: grid; place-items: center; }
.diff-card h4 { font-size: 18px; font-weight: 600; margin: 0 0 8px; color: var(--zb-text); }
.diff-card p { font-size: 14px; color: var(--zb-muted); line-height: 1.5; margin: 0; }

.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-grid label{display:grid;gap:7px;font-size:13px;font-weight:800;color:#334155}
.form-grid input,.form-grid select,.form-grid textarea{width:100%;border:1px solid #CBD5E1;border-radius:12px;padding:13px 14px;font:inherit}
.form-grid textarea{min-height:120px;resize:vertical}.full{grid-column:1/-1}
/* Language Selector */
.lang-selector {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-right: 15px;
}
.lang-btn {
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 4px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.5;
}
.lang-btn img {
  width: 20px;
  height: 14px;
  object-fit: cover;
  border-radius: 2px;
}
.lang-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  opacity: 1;
}
.lang-btn.active {
  border-color: #0EA5E9;
  background: rgba(14, 165, 233, 0.1);
  opacity: 1;
}

/* Mobile Menu Toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: #fff;
  cursor: pointer;
  padding: 8px;
  z-index: 1001;
}
.nav-toggle span { font-size: 32px; }

@media (max-width:1050px){
  .nav-toggle { display: block; }
  .main-nav {
    display: none;
    position: fixed;
    top: 0;
    right: 0;
    width: 280px;
    height: 100vh;
    background: #060c24;
    flex-direction: column;
    padding: 80px 24px;
    gap: 20px;
    box-shadow: -10px 0 30px rgba(0,0,0,0.5);
    z-index: 1000;
    border-left: 1px solid rgba(255,255,255,0.1);
  }
  .main-nav.active { display: flex; }
  .main-nav a { font-size: 18px; width: 100%; padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,0.05); }
  
  .hero-grid,.section-head.two-col,.cta-grid,.form-wrap{grid-template-columns:1fr}
  .card-grid.four,.card-grid.three,.card-grid.six,.integration-grid,.feature-grid,.founders-grid,.diff-grid{grid-template-columns:repeat(2,1fr)}
  .timeline{grid-template-columns:repeat(4,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  .container{width:min(100% - 28px,1180px)}
  .nav-wrap{height:auto;padding:14px 0}.brand img{width:150px}.nav-actions .btn{display:none}
  .hero{padding:56px 0 36px}.hero h1{font-size:36px}
  .hero-actions,.cta-actions{display:grid}
  .card-grid.four,.card-grid.three,.card-grid.six,.integration-grid,.feature-grid,.founders-grid,.diff-grid,.timeline,.footer-grid,.form-grid{grid-template-columns:1fr}
  .timeline:before{display:none}.footer-bottom{flex-direction:column}
}