:root{--mist:#edf1f4;--paper:#fff;--navy:#10243b;--steel:#4f647a;--line:#cfd8e0;--tint:#dde5ec;--amber:#e3a21a;--blue:#1b4f8a;--w:1320px;--f:"Archivo",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{font:400 17px/1.65 var(--f);color:var(--navy);background:var(--mist);-webkit-font-smoothing:antialiased}
svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul{list-style:none}
address{font-style:normal}
:focus-visible{outline:3px solid var(--amber);outline-offset:3px}
.wrap{width:min(var(--w),100% - 56px);margin-inline:auto}
h1,h2,h3{line-height:1.1;letter-spacing:-.02em;font-weight:600}
h2{font-size:clamp(2rem,3.6vw,3.1rem);margin-bottom:18px}
h3{font-size:1.3rem;margin-bottom:10px}
.lead{font-size:1.15rem;color:var(--steel);max-width:60ch}
.btn{display:inline-block;padding:15px 28px;border-radius:6px;background:var(--amber);color:var(--navy);border:2px solid var(--amber);cursor:pointer;font:600 1rem/1.2 var(--f);transition:transform .2s,background .2s,border-color .2s}
.btn:hover{transform:translateY(-2px);background:#f0b232;border-color:#f0b232}
.btn.ghost{background:transparent;color:#fff;border-color:#5d7690}
.btn.ghost:hover{border-color:#fff}
.btn.navy{background:var(--navy);color:#fff;border-color:var(--navy)}
.btn.navy:hover{background:#1a3a5c;border-color:#1a3a5c}
.btn.sm{padding:10px 18px;font-size:.95rem}
.skip{position:absolute;left:-999px}.skip:focus{left:12px;top:12px;background:#fff;padding:8px 12px;z-index:99}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:var(--navy);color:#fff;transition:box-shadow .3s}
.site-header.stuck{box-shadow:0 6px 24px rgba(8,20,36,.35)}
.bar{display:flex;align-items:center;justify-content:space-between;height:76px}
.brand{display:flex;align-items:center;gap:12px;font-weight:700;letter-spacing:.05em}
.brand i{display:grid;place-items:center;width:34px;height:34px;background:var(--amber);color:var(--navy);border-radius:9px 9px 9px 0;font-style:normal}
.nav{display:flex;align-items:center;gap:32px}
.nav a:not(.btn){color:#cdd8e3;font-weight:500;padding:6px 0;background:linear-gradient(var(--amber),var(--amber)) 0 100%/0 2px no-repeat;transition:background-size .3s,color .2s}
.nav a:not(.btn):hover{color:#fff;background-size:100% 2px}
.burger{display:none;background:none;border:0;width:44px;height:44px;cursor:pointer}
.burger span{display:block;width:24px;height:2px;background:#fff;margin:5px auto;transition:transform .3s,opacity .3s}
.burger[aria-expanded=true] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded=true] span:nth-child(2){opacity:0}
.burger[aria-expanded=true] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* hero */
.hero{position:relative;background:var(--navy);color:#fff;padding:88px 0 160px;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:56px 56px}
.hero-in{display:grid;grid-template-columns:1.1fr .9fr;gap:64px;align-items:center}
.tag{display:inline-block;color:var(--amber);font-weight:600;margin-bottom:22px;padding-left:18px;border-left:3px solid var(--amber)}
.hero h1{font-size:clamp(2.6rem,5.2vw,4.9rem);letter-spacing:-.03em;margin-bottom:26px}
.hero-p{font-size:1.2rem;color:#b8c7d6;max-width:56ch;margin-bottom:38px}
.actions{display:flex;flex-wrap:wrap;gap:14px}
.schem{width:100%;max-width:520px;justify-self:end}
.hero-in>*{animation:rise .9s cubic-bezier(.2,.7,.2,1) both}
.hero-in>*:last-child{animation-delay:.2s}
@keyframes rise{from{opacity:0;transform:translateY(22px)}}

.facts{position:relative;z-index:2;margin-top:-86px;display:grid;grid-template-columns:repeat(4,1fr);background:var(--paper);border-radius:14px;box-shadow:0 18px 50px rgba(16,36,59,.16);overflow:hidden}
.facts div{padding:30px 28px;border-left:1px solid var(--line)}
.facts div:first-child{border-left:0}
.facts span{display:block;color:var(--steel);font-size:.88rem;margin-bottom:4px}
.facts strong{font-weight:600;line-height:1.3;display:block;overflow-wrap:anywhere}

/* sections */
.sec{padding:112px 0}
.alt{background:var(--paper)}
.about{display:grid;grid-template-columns:.95fr 1.05fr;gap:80px;align-items:start}
.tbl{width:100%;margin-top:40px;border-collapse:collapse;background:var(--paper);border-radius:12px;overflow:hidden}
.tbl caption{caption-side:top;text-align:left;font-weight:600;color:var(--steel);padding-bottom:12px;font-size:.95rem}
.tbl td{padding:18px 22px;border-bottom:1px solid var(--line);vertical-align:top}
.tbl tr:last-child td{border-bottom:0}
.tbl td:first-child{font-weight:700;color:var(--blue);white-space:nowrap;width:1%}
.prose p{margin-bottom:22px;max-width:64ch}
.note{background:var(--navy);color:#dbe5ee;padding:26px 30px;border-radius:12px;border-left:6px solid var(--amber)}
.note strong{color:#fff}

.head{margin-bottom:48px}
.core{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.core article{background:var(--mist);border-radius:14px;border-top:6px solid var(--navy);padding:36px 34px;transition:transform .3s,box-shadow .3s}
.core article:nth-child(2){border-top-color:var(--amber)}
.core article:nth-child(3){border-top-color:var(--blue)}
.core article:hover{transform:translateY(-6px);box-shadow:0 16px 36px rgba(16,36,59,.12)}
.code{display:inline-block;font-size:.85rem;font-weight:600;background:var(--tint);padding:4px 10px;border-radius:4px;margin-bottom:18px}
.core p{color:var(--steel);margin-bottom:20px}
.core li{padding:9px 0 9px 24px;border-top:1px solid var(--line);position:relative;font-weight:500}
.core li::before{content:"";position:absolute;left:0;top:19px;width:10px;height:10px;background:var(--amber);border-radius:2px}
.also{margin-top:28px;display:grid;gap:14px}
.also article{display:grid;grid-template-columns:.8fr 2fr;gap:36px;align-items:center;background:var(--mist);border-left:5px solid var(--amber);border-radius:4px 12px 12px 4px;padding:26px 32px;transition:padding-left .3s}
.also article:hover{padding-left:44px}
.also h3{margin:0}
.also p{color:var(--steel)}

.why{display:grid;grid-template-columns:.8fr 1.2fr;gap:72px;align-items:start}
.why-l{position:sticky;top:110px}
.why-l .btn{margin-top:30px}
.ben{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.ben li{background:var(--paper);border-radius:12px;padding:30px;border:1px solid var(--line);transition:border-color .3s,transform .3s}
.ben li:hover{border-color:var(--navy);transform:translateY(-3px)}
.ben li:last-child{grid-column:1/-1;background:var(--navy);color:#fff;border-color:var(--navy)}
.ben li:last-child p{color:#b8c7d6}
.ben h3{font-size:1.2rem;display:flex;gap:12px;align-items:baseline}
.ben h3::before{content:"";flex:none;width:12px;height:12px;background:var(--amber);border-radius:3px}
.ben p{color:var(--steel);padding-left:24px}

.contact{display:grid;grid-template-columns:.8fr 1.2fr;gap:72px;align-items:start}
.details{margin-top:36px}
.details dt{font-size:.9rem;color:var(--steel);margin-top:20px}
.details dd{font-weight:600;font-size:1.1rem;overflow-wrap:anywhere}
.details a{border-bottom:2px solid var(--amber)}
.form{background:var(--mist);border-radius:14px;padding:40px}
.row{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.f{margin-bottom:20px}
.f label{display:block;font-weight:600;font-size:.95rem;margin-bottom:6px}
.f input,.f select,.f textarea{width:100%;padding:13px 14px;border:1.5px solid var(--line);border-radius:8px;background:#fff;font:inherit;color:var(--navy);transition:border-color .2s,box-shadow .2s}
.f input:focus,.f select:focus,.f textarea:focus{outline:0;border-color:var(--blue);box-shadow:0 0 0 3px rgba(27,79,138,.18)}
.f [aria-invalid=true]{border-color:#b3261e}
.err{display:block;color:#b3261e;font-size:.88rem;min-height:1.2em;margin-top:4px}
.status{margin-top:16px;font-weight:500}
.status.ok{color:#17623a}

/* footer */
.site-footer{background:#0b1a2b;color:#aebdcc;padding:68px 0 0}
.foot{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:48px;padding-bottom:48px}
.foot .brand{color:#fff;margin-bottom:16px}
.foot h3{color:#fff;font-size:1.05rem;margin-bottom:12px}
.foot a:hover{color:var(--amber)}
.legal{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;border-top:1px solid #20344b;padding:22px 0;font-size:.9rem}

/* scroll reveal */
.js .rv{opacity:0;transform:translateY(14px);transition:opacity .7s,transform .7s}
.js .rv.in{opacity:1;transform:none}

@media(max-width:1000px){
  .burger{display:block}
  .nav{display:none;position:absolute;top:76px;left:0;right:0;flex-direction:column;align-items:flex-start;gap:18px;background:var(--navy);padding:22px 28px 30px;border-top:1px solid #20344b}
  .nav.open{display:flex}
  .hero{padding:60px 0 130px}
  .hero-in,.about,.why,.contact{grid-template-columns:1fr;gap:48px}
  .schem{justify-self:start;max-width:440px}
  .facts{grid-template-columns:1fr 1fr}
  .facts div:nth-child(3){border-left:0}
  .facts div:nth-child(n+3){border-top:1px solid var(--line)}
  .core{grid-template-columns:1fr}
  .also article{grid-template-columns:1fr;gap:8px}
  .why-l{position:static}
  .foot{grid-template-columns:1fr 1fr}
  .foot>div:first-child{grid-column:1/-1}
}
@media(max-width:600px){
  body{font-size:16px}
  .wrap{width:calc(100% - 36px)}
  .sec{padding:72px 0}
  .facts{grid-template-columns:1fr}
  .facts div{border-left:0;border-top:1px solid var(--line)}
  .facts div:first-child{border-top:0}
  .ben,.row,.foot{grid-template-columns:1fr}
  .form{padding:26px 20px}
  .actions .btn{width:100%;text-align:center}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
  .js .rv{opacity:1;transform:none}
}