*{margin:0;padding:0;box-sizing:border-box}
:root{
  --primary:#1e3a8a;--accent:#3b82f6;
  --bg:#f8fafc;--bg-alt:#ffffff;
  --text:#0f172a;--muted:#475569;
  --card:#ffffff;--border:#cbd5e1;
  --radius:6px;
}
html{scroll-behavior:smooth}
body{font-family:'Public Sans',system-ui,-apple-system,sans-serif;color:var(--text);background:var(--bg);line-height:1.65;font-size:16px}
h1,h2,h3,h4{font-family:'Saira',sans-serif;color:var(--text);line-height:1.2}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:1180px;margin:0 auto;padding:0 24px}
.reveal{opacity:0;transform:translateY(20px);transition:.6s ease-out}
.reveal.on{opacity:1;transform:none}

.header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--border);box-shadow:0 1px 0 var(--border)}
.header-top{background:var(--primary);color:#fff;font-family:'Public Sans',sans-serif;font-size:12px;padding:6px 0;letter-spacing:.04em}
.header-top .container{display:flex;justify-content:space-between;align-items:center}
.header-top .lbl{color:rgba(255,255,255,.7)}
.header-top .lbl b{color:var(--accent);font-weight:600}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{font-family:'Saira',sans-serif;font-weight:700;font-size:22px;color:var(--primary);display:flex;align-items:center;gap:10px;letter-spacing:-.02em}
.logo .seal{width:30px;height:30px;border-radius:50%;background:var(--primary);color:var(--accent);display:flex;align-items:center;justify-content:center;font-family:'Saira',sans-serif;font-weight:700;font-size:12px;letter-spacing:-.02em;border:2px solid var(--accent)}
.nav-links{display:flex;gap:28px;align-items:center}
.nav-links a{font-family:'Public Sans',sans-serif;font-size:14px;color:var(--text);font-weight:500;letter-spacing:.02em}
.nav-links a:hover{color:var(--primary)}
.nav-links a.nav-cta{background:var(--primary);color:#fff !important;padding:10px 24px;border-radius:4px;font-weight:600;font-size:14px;font-family:'Saira',sans-serif;letter-spacing:.02em;text-transform:uppercase}
.nav-links a.nav-cta:hover{background:var(--accent);color:#fff !important}
.burger{display:none;flex-direction:column;gap:4px;background:none;border:0;cursor:pointer;padding:8px}
.burger span{width:22px;height:2px;background:var(--text)}
@media(max-width:860px){.nav-links{display:none}.burger{display:flex}}
.mob-nav{display:none;background:#fff;padding:16px 24px;border-top:1px solid var(--border)}
.mob-nav.on{display:block}
.mob-nav a{display:block;padding:10px 0;font-size:15px;border-bottom:1px solid var(--border)}

/* hero — clean official */
.hero{padding:80px 0 60px;background:linear-gradient(180deg,#fff 0%,#f8fafc 100%);position:relative;border-bottom:1px solid var(--border)}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:60px;align-items:center}
.kick{display:inline-flex;align-items:center;gap:10px;background:var(--bg-alt);border:1px solid var(--border);color:var(--primary);font-family:'Saira',sans-serif;font-weight:600;font-size:13px;padding:8px 16px;border-radius:4px;margin-bottom:24px;letter-spacing:.04em;text-transform:uppercase}
.kick::before{content:'';width:8px;height:8px;background:var(--accent);border-radius:50%}
h1.htitle{font-family:'Saira',sans-serif;font-size:56px;font-weight:700;line-height:1.04;letter-spacing:-.03em;color:var(--primary);margin-bottom:22px}
h1.htitle em{font-style:normal;color:var(--accent)}
.hdesc{font-size:18px;color:var(--muted);max-width:560px;margin-bottom:32px;line-height:1.7}
.hcta{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:36px}
.btn{padding:14px 28px;border-radius:4px;font-weight:600;font-size:14px;cursor:pointer;border:0;display:inline-block;transition:.16s;font-family:'Saira',sans-serif;letter-spacing:.05em;text-transform:uppercase}
.btn-a{background:var(--primary);color:#fff}
.btn-a:hover{background:var(--accent)}
.btn-b{background:#fff;color:var(--primary);border:2px solid var(--primary)}
.btn-b:hover{background:var(--primary);color:#fff}
.creds{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;background:#fff;border:1px solid var(--border);border-radius:6px;padding:24px}
.creds-i{padding:12px 14px;background:var(--bg-alt);border-radius:4px;border-left:3px solid var(--accent)}
.creds-i b{display:block;font-family:'Saira',sans-serif;font-weight:700;font-size:24px;color:var(--primary);line-height:1}
.creds-i span{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.08em;font-weight:600;margin-top:4px;display:block}

/* hero certificate */
.cert{background:#fff;border:2px solid var(--primary);border-radius:6px;padding:32px;position:relative}
.cert::before{content:'';position:absolute;inset:8px;border:1px solid var(--accent);border-radius:4px;pointer-events:none}
.cert-head{display:flex;align-items:center;gap:14px;padding-bottom:18px;border-bottom:1px solid var(--border);margin-bottom:18px}
.cert-head .seal{width:54px;height:54px;border-radius:50%;background:var(--primary);color:var(--accent);display:flex;align-items:center;justify-content:center;font-family:'Saira',sans-serif;font-weight:700;font-size:18px;border:3px solid var(--accent);box-shadow:0 0 0 4px #fff}
.cert-head h4{font-family:'Saira',sans-serif;font-size:14px;color:var(--muted);letter-spacing:.1em;text-transform:uppercase;margin-bottom:2px}
.cert-head .ttl{font-family:'Saira',sans-serif;font-size:18px;color:var(--primary);font-weight:700}
.cert-body{display:grid;gap:10px}
.cert-row{display:flex;justify-content:space-between;padding:6px 0;border-bottom:1px dashed var(--border)}
.cert-row:last-child{border-bottom:0}
.cert-row .k{font-family:'Public Sans',sans-serif;font-size:13px;color:var(--muted);letter-spacing:.02em}
.cert-row .v{font-family:'Saira',sans-serif;font-size:13px;color:var(--primary);font-weight:600}
.cert-stamp{position:absolute;top:-12px;right:24px;background:var(--accent);color:#fff;font-family:'Saira',sans-serif;font-size:11px;padding:4px 12px;border-radius:4px;letter-spacing:.1em;text-transform:uppercase;font-weight:600}
@media(max-width:980px){.hero-grid{grid-template-columns:1fr;gap:40px}h1.htitle{font-size:38px}}

/* features */
.sec{padding:96px 0;background:var(--bg-alt)}
.sec-plain{padding:96px 0}
.shead{margin-bottom:60px}
.shead .small{display:inline-block;background:var(--primary);color:var(--accent);font-family:'Saira',sans-serif;font-size:12px;padding:5px 14px;border-radius:4px;letter-spacing:.1em;text-transform:uppercase;font-weight:600;margin-bottom:16px}
.shead h2{font-family:'Saira',sans-serif;font-size:44px;font-weight:700;color:var(--primary);letter-spacing:-.02em;margin-bottom:14px;line-height:1.05}
.shead h2 em{font-style:normal;color:var(--accent)}
.shead p{color:var(--muted);font-size:17px;max-width:620px;line-height:1.7}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.fcard{background:var(--card);border:1px solid var(--border);border-top:3px solid var(--accent);border-radius:6px;padding:30px 26px;transition:.18s}
.fcard:hover{border-top-color:var(--primary);box-shadow:0 8px 22px -10px rgba(30,58,138,.18);transform:translateY(-2px)}
.fcard .lbl{font-family:'Saira',sans-serif;font-size:11px;color:var(--accent);letter-spacing:.12em;margin-bottom:12px;text-transform:uppercase;font-weight:700}
.fcard h3{font-family:'Saira',sans-serif;font-size:17px;font-weight:700;color:var(--primary);margin-bottom:10px;letter-spacing:-.01em}
.fcard p{color:var(--muted);font-size:14px;line-height:1.65}
@media(max-width:980px){.grid4{grid-template-columns:repeat(2,1fr)}.shead h2{font-size:32px}}
@media(max-width:560px){.grid4{grid-template-columns:1fr}}

/* document-style advantages */
.adv-doc{background:#fff;border:1px solid var(--border);border-radius:6px;margin-top:40px;overflow:hidden}
.adv-row{display:grid;grid-template-columns:80px 1fr;border-bottom:1px solid var(--border)}
.adv-row:last-child{border-bottom:0}
.adv-row:hover{background:var(--bg-alt)}
.adv-row .ai-n{padding:22px 0;font-family:'Saira',sans-serif;font-size:24px;color:var(--accent);text-align:center;border-right:1px solid var(--border);background:var(--bg-alt);font-weight:700;display:flex;align-items:center;justify-content:center;letter-spacing:-.02em}
.adv-row .ai-c{padding:22px 26px}
.adv-row .ai-c h4{font-family:'Saira',sans-serif;font-size:18px;color:var(--primary);font-weight:700;margin-bottom:6px;letter-spacing:-.01em}
.adv-row .ai-c p{color:var(--muted);font-size:14.5px;line-height:1.65}

/* platforms */
.plat-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:12px}
.plat{background:var(--card);border:1px solid var(--border);border-radius:6px;padding:22px 14px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:10px;color:inherit;transition:.16s}
.plat:hover{border-color:var(--primary);background:var(--bg-alt)}
.plat .pico{width:32px;height:32px;color:var(--primary)}
.plat .pn{font-family:'Saira',sans-serif;font-size:13px;font-weight:600;letter-spacing:.02em;text-transform:uppercase}
@media(max-width:860px){.plat-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:480px){.plat-grid{grid-template-columns:repeat(2,1fr)}}

/* CTA */
.ctab{padding:80px 0}
.ctab-card{background:var(--primary);color:#fff;border-radius:6px;padding:60px 50px;text-align:center;position:relative;overflow:hidden;border:2px solid var(--accent)}
.ctab-card::before{content:'';position:absolute;inset:8px;border:1px solid rgba(59,130,246,.3);border-radius:4px;pointer-events:none}
.ctab-card .pre{font-family:'Saira',sans-serif;font-size:12px;letter-spacing:.16em;color:var(--accent);margin-bottom:14px;text-transform:uppercase;font-weight:600;position:relative}
.ctab-card h2{font-family:'Saira',sans-serif;color:#fff;font-size:40px;font-weight:700;margin-bottom:14px;letter-spacing:-.02em;position:relative;line-height:1.1}
.ctab-card h2 em{font-style:normal;color:var(--accent)}
.ctab-card p{color:rgba(255,255,255,.82);margin-bottom:28px;max-width:520px;margin-left:auto;margin-right:auto;font-family:'Public Sans',sans-serif;font-size:16px;position:relative}
.ctab-card .btn-a{background:var(--accent);color:#fff;position:relative}
.ctab-card .btn-a:hover{background:#fff;color:var(--primary)}

/* FAQ */
.faq-list{max-width:780px;margin:40px 0 0;border:1px solid var(--border);border-radius:6px;overflow:hidden;background:#fff}
.faq-item{border-bottom:1px solid var(--border);padding:0 26px}
.faq-item:last-child{border-bottom:0}
.faq-item[open]{background:var(--bg-alt)}
.faq-q{padding:22px 0;display:flex;justify-content:space-between;align-items:center;cursor:pointer;font-family:'Saira',sans-serif;font-weight:600;font-size:16px;color:var(--primary);list-style:none;letter-spacing:-.01em}
.faq-q::-webkit-details-marker{display:none}
.faq-q::after{content:'+';font-family:'Saira',sans-serif;font-size:22px;color:var(--accent);transition:.2s;font-weight:600}
.faq-item[open] .faq-q::after{transform:rotate(45deg)}
.faq-a{padding:0 0 22px;color:var(--muted);font-size:15px;line-height:1.7}

/* footer */
.footer{padding:54px 0 28px;background:var(--primary);color:rgba(255,255,255,.75);border-top:4px solid var(--accent)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;margin-bottom:30px}
.footer h4{font-family:'Saira',sans-serif;color:var(--accent);font-size:13px;font-weight:700;margin-bottom:14px;text-transform:uppercase;letter-spacing:.08em}
.footer a{display:block;color:rgba(255,255,255,.65);font-size:14px;padding:4px 0;font-family:'Public Sans',sans-serif}
.footer a:hover{color:var(--accent)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:20px;font-family:'Public Sans',sans-serif;font-size:13px;color:rgba(255,255,255,.5);display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}
@media(max-width:760px){.footer-grid{grid-template-columns:1fr;gap:24px}}

/* steps */
.steps{padding:60px 0}
.step{background:#fff;border:1px solid var(--border);border-left:4px solid var(--accent);border-radius:6px;padding:32px;margin-bottom:18px;display:grid;grid-template-columns:64px 1fr;gap:24px}
.step-n{width:48px;height:48px;border-radius:4px;background:var(--primary);color:var(--accent);display:flex;align-items:center;justify-content:center;font-family:'Saira',sans-serif;font-weight:700;font-size:22px;border:2px solid var(--accent)}
.step h3{font-family:'Saira',sans-serif;font-size:20px;margin-bottom:8px;font-weight:700;color:var(--primary);letter-spacing:-.01em}
.step p{color:var(--muted);font-size:15px;line-height:1.7;margin-bottom:14px}
.after-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:24px}
.after-card{background:#fff;border:1px solid var(--border);border-top:3px solid var(--accent);border-radius:6px;padding:20px}
.after-card h4{font-family:'Saira',sans-serif;font-size:16px;margin-bottom:6px;font-weight:700;color:var(--primary)}
.after-card p{color:var(--muted);font-size:14px}
@media(max-width:680px){.after-grid{grid-template-columns:1fr}.step{grid-template-columns:1fr}}