:root{
  --navy:#102a43;--blue:#1f6feb;--cyan:#22b8cf;--ink:#14202b;--muted:#607080;
  --bg:#f7fafc;--white:#fff;--line:#e3eaf0;--soft:#edf6ff;--shadow:0 18px 50px rgba(16,42,67,.10);
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--bg);line-height:1.6}a{text-decoration:none;color:inherit}
.container{width:min(1160px,92%);margin:auto}.narrow{max-width:850px}.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.94);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:10px}.brand-mark{display:grid;place-items:center;width:42px;height:42px;border-radius:12px;background:var(--navy);color:white;font-weight:900;font-size:23px}.brand strong{display:block;color:var(--navy);font-size:19px;line-height:1}.brand small{display:block;color:var(--muted);font-size:10px;margin-top:5px}.menu{display:flex;align-items:center;gap:25px;font-size:14px;font-weight:700}.menu a:hover{color:var(--blue)}.nav-cta{background:var(--navy);color:white!important;padding:11px 17px;border-radius:10px}.menu-toggle{display:none;border:0;background:none;font-size:25px}
.hero{padding:82px 0 70px;background:linear-gradient(135deg,#f7fbff 0%,#eef8ff 58%,#f7fafc 100%);overflow:hidden}.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center}.eyebrow{font-size:12px;letter-spacing:.14em;font-weight:900;color:var(--blue);margin-bottom:14px}.hero h1{font-size:clamp(44px,6vw,70px);line-height:1.03;letter-spacing:-.045em;margin:0 0 22px;color:var(--navy)}.hero-copy{font-size:19px;color:var(--muted);max-width:650px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:30px 0}.btn{display:inline-flex;justify-content:center;align-items:center;gap:10px;border-radius:12px;padding:14px 20px;font-weight:900;border:1px solid transparent;transition:.2s;cursor:pointer}.btn-primary{background:var(--navy);color:white;box-shadow:0 10px 25px rgba(16,42,67,.18)}.btn-primary:hover{transform:translateY(-2px)}.btn-ghost{background:white;border-color:var(--line);color:var(--navy)}.btn-light{background:white;color:var(--navy)}.btn-full{width:100%}.trust-row{display:flex;gap:18px;flex-wrap:wrap;font-size:12px;font-weight:800;color:#4d6275}
.hero-card{min-height:500px;border-radius:30px;background:var(--navy);box-shadow:var(--shadow);padding:30px;display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden}.hero-card:before{content:"";position:absolute;width:330px;height:330px;border:1px solid rgba(255,255,255,.16);border-radius:50%;top:-70px;right:-70px}.math-orbit{height:360px;display:grid;place-items:center;position:relative}.center-equation{font-size:48px;font-weight:900;color:white}.center-equation span{color:#6ee7f2}.orb{position:absolute;width:76px;height:76px;border-radius:24px;background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.14);display:grid;place-items:center;color:white;font-size:25px;font-weight:900}.orb-a{top:20px;left:25%}.orb-b{right:12%;top:48%}.orb-c{bottom:20px;left:14%}.hero-card-bottom{border-top:1px solid rgba(255,255,255,.14);padding-top:20px;color:white}.hero-card-bottom strong{display:block;font-size:18px}.hero-card-bottom span{color:#b9cad8;font-size:14px}
section{padding:90px 0}.section-head{max-width:720px;margin-bottom:40px}.section-head.center{text-align:center;margin-left:auto;margin-right:auto}.section-head h2,h2{font-size:clamp(31px,4vw,46px);line-height:1.1;letter-spacing:-.035em;color:var(--navy);margin:0 0 14px}.section-head p,.lead{color:var(--muted);font-size:17px}.cards.four{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.card{background:white;border:1px solid var(--line);border-radius:18px;padding:25px;box-shadow:0 8px 25px rgba(16,42,67,.04)}.icon{font-size:28px;margin-bottom:16px}.card h3{font-size:18px;margin:0 0 8px;color:var(--navy)}.card p{margin:0;color:var(--muted);font-size:14px}
.audiences{background:white}.audience-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.audience{border:1px solid var(--line);border-radius:22px;padding:32px;background:#fff}.audience.featured{background:var(--navy);color:white;transform:translateY(-8px);box-shadow:var(--shadow)}.tag{font-size:11px;font-weight:900;letter-spacing:.12em;color:var(--blue)}.featured .tag{color:#6ee7f2}.audience h3{font-size:27px;line-height:1.15;margin:14px 0}.audience p,.audience li{color:var(--muted);font-size:14px}.featured p,.featured li{color:#c6d4df}.audience ul{padding-left:18px;min-height:125px}.audience a{font-weight:900;color:var(--blue)}.featured a{color:#6ee7f2}
.method{background:#eef6fb}.method-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:80px;align-items:center}.method-list{display:grid;gap:12px}.method-item{display:grid;grid-template-columns:55px 1fr;gap:20px;padding:24px;background:white;border:1px solid var(--line);border-radius:18px}.method-item>span{font-size:13px;font-weight:900;color:var(--blue);padding-top:3px}.method-item h3{margin:0;color:var(--navy)}.method-item p{margin:6px 0 0;color:var(--muted);font-size:14px}
.steps{background:white}.step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.step{border-top:3px solid var(--blue);padding:22px 4px}.step span{font-weight:900;color:var(--blue)}.step h3{color:var(--navy);margin:12px 0 6px}.step p{color:var(--muted);font-size:14px}
.lead-magnet{padding:40px 0}.lead-banner{background:var(--navy);color:white;border-radius:26px;padding:42px 50px;display:flex;align-items:center;justify-content:space-between;gap:30px}.lead-banner h2{color:white;margin-bottom:8px}.lead-banner p{margin:0;color:#c7d5df;max-width:680px}
.lead-section{background:linear-gradient(180deg,#f7fafc,#edf6fb)}.lead-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:70px;align-items:start}.contact-points{margin-top:35px;display:grid;gap:14px}.contact-points div{display:flex;flex-direction:column}.contact-points strong{color:var(--navy)}.contact-points span{color:var(--muted)}.lead-form{background:white;border:1px solid var(--line);padding:30px;border-radius:22px;box-shadow:var(--shadow)}label{display:block;font-size:13px;font-weight:800;color:var(--navy);margin-bottom:14px}input,select{width:100%;margin-top:7px;padding:13px 14px;border:1px solid #d7e0e8;border-radius:10px;font:inherit;background:white}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}.lead-form small{display:block;color:#7a8b99;margin-top:12px}.success{margin-top:14px;padding:13px;border-radius:10px;background:#e9f9ef;color:#1b6b3a;font-weight:700;font-size:14px}
.faq{background:white}.faq details{border-top:1px solid var(--line);padding:20px 0}.faq details:last-child{border-bottom:1px solid var(--line)}summary{cursor:pointer;font-weight:900;color:var(--navy)}details p{color:var(--muted);margin-bottom:0}
.footer{background:#0b2033;color:#b7c7d3;padding:55px 0 20px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px}.footer-brand strong{color:white}.footer-brand small{color:#8fa4b4}.footer strong{color:white;display:block;margin-bottom:12px}.footer-grid a,.footer-grid span{display:block;margin:5px 0;font-size:14px}.copyright{border-top:1px solid rgba(255,255,255,.1);margin-top:35px;padding-top:18px;font-size:12px}.floating-wa{position:fixed;right:20px;bottom:20px;width:58px;height:58px;border-radius:50%;background:#16a34a;color:white;display:grid;place-items:center;font-size:28px;box-shadow:0 12px 30px rgba(0,0,0,.2);z-index:30}
@media(max-width:900px){.menu{display:none;position:absolute;left:4%;right:4%;top:70px;background:white;padding:18px;border:1px solid var(--line);border-radius:15px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.menu.open{display:flex}.menu-toggle{display:block}.hero-grid,.method-grid,.lead-grid{grid-template-columns:1fr}.hero-card{min-height:420px}.cards.four{grid-template-columns:repeat(2,1fr)}.audience-grid{grid-template-columns:1fr}.step-grid{grid-template-columns:repeat(2,1fr)}.lead-banner{flex-direction:column;align-items:flex-start}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:600px){section{padding:65px 0}.hero{padding:60px 0}.hero h1{font-size:44px}.hero-card{min-height:370px}.math-orbit{height:260px}.center-equation{font-size:38px}.cards.four,.step-grid,.form-row,.footer-grid{grid-template-columns:1fr}.audience.featured{transform:none}.lead-form{padding:22px}.trust-row{gap:10px}.nav{min-height:68px}}