:root{
  --slate:#5a6c6d; --navy:#16125d; --ink:var(--navy); --mist:#eef2f1; --brass:#a9823a; --gold:#e6a92f; --aqua:#79bbbb; --paper:#ffffff; --muted:#56615f;
  --line:#d5dcda; --wrap:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Montserrat",system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--ink);background:var(--paper);font-size:17px;line-height:1.6}
img{max-width:100%;display:block}
a{color:inherit}
:focus-visible{outline:3px solid var(--brass);outline-offset:3px}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
/* header */
.site-head{position:sticky;top:0;z-index:10;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line)}
.site-head::before{content:"";display:block;height:3px;background:linear-gradient(90deg,var(--slate),var(--gold))}
.site-head .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px}
.brand{display:flex;align-items:center;text-decoration:none}
.brand-logo{height:40px;width:auto;display:block}
nav ul{list-style:none;display:flex;gap:22px;margin:0;padding:0}
nav a{text-decoration:none;font-weight:600;font-size:.95rem;color:var(--muted)}
nav a[aria-current="page"],nav a:hover{color:var(--ink)}
nav a[aria-current="page"]{box-shadow:0 2px 0 var(--brass)}
nav a:not([aria-current="page"]):hover{box-shadow:0 2px 0 var(--aqua)}
/* hero */
.hero{position:relative;min-height:78vh;display:flex;align-items:flex-end;color:#fff;overflow:hidden;background:var(--ink)}
.hero iframe{position:absolute;top:50%;left:50%;width:177.78vh;min-width:100%;height:56.25vw;min-height:100%;transform:translate(-50%,-50%);border:0;pointer-events:none}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(22,18,93,.25) 0%,rgba(22,18,93,.85) 100%)}
.hero .wrap{position:relative;z-index:1;padding-top:120px;padding-bottom:72px;width:100%}
.hero h1{color:#fff;font-size:clamp(2.3rem,6vw,4.6rem);line-height:1.02;letter-spacing:-.03em;margin:0 0 20px;font-weight:800;max-width:16ch}
.hero h1 .plus{display:block;color:var(--gold);font-weight:800}
.hero p{font-size:1.15rem;max-width:56ch;margin:0 0 32px;color:#e3e9e8}
.btns{display:flex;flex-wrap:wrap;gap:12px}
.btn{display:inline-block;padding:14px 22px;border-radius:4px;font-weight:700;text-decoration:none;border:2px solid transparent;transition:background-color .15s ease,box-shadow .15s ease,transform .15s ease}
.btn-primary{background:var(--brass);color:#fff}
.btn-primary:hover{background:#8f6d2f;box-shadow:0 6px 16px rgba(169,130,58,.35)}
.btn:active{transform:translateY(1px)}
.btn-ghost{border-color:currentColor}
/* sections */
section{padding:88px 0}
.alt{background:var(--mist)}
h2::before{content:"";display:block;width:44px;height:3px;border-radius:2px;background:var(--gold);margin-bottom:16px}
h2,h3{color:var(--slate)}
h2{font-size:clamp(1.8rem,3.4vw,2.6rem);letter-spacing:-.02em;line-height:1.1;margin:0 0 16px}
.lede{color:var(--muted);max-width:60ch;margin:0 0 44px;font-size:1.08rem}
h3{font-size:1.15rem;margin:0 0 8px;letter-spacing:-.01em}
/* expertise: two-column list with rule */
.expertise{display:grid;grid-template-columns:repeat(2,1fr);gap:0 56px}
.expertise div{padding:26px 0;border-top:1px solid var(--aqua)}
.expertise p{margin:0;color:var(--muted)}
/* steps */
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:28px;counter-reset:s}
.steps li{counter-increment:s;position:relative;padding-top:56px}
.steps li::before{content:counter(s);position:absolute;top:0;left:0;width:40px;height:40px;border-radius:50%;background:var(--slate);color:#fff;display:grid;place-items:center;font-weight:800;box-shadow:0 0 0 4px rgba(121,187,187,.3)}
.steps li:not(:last-child)::after{content:"";position:absolute;top:20px;left:52px;right:-16px;height:2px;background:var(--line)}
.steps p{margin:0;color:var(--muted)}
/* models */
.models{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:2px;background:var(--line);border:2px solid var(--line)}
.models div{background:#fff;padding:28px}
.models p{margin:0;color:var(--muted)}
/* industries */
.industries{columns:3;column-gap:40px;padding:0;margin:0;list-style:none}
.industries li{padding:10px 0;border-bottom:1px solid var(--line);break-inside:avoid;font-weight:600}
.industries small{font-weight:400;color:var(--muted)}
/* cta band */
.band{background:var(--slate);color:#fff}
.band .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.band h2{color:#fff;margin:0}
.band p{margin:6px 0 0;color:#e3e9e8}
/* about */
.page-title{background:var(--ink);color:#fff;padding:72px 0 56px}
.page-title h1{color:#fff;margin:0;font-size:clamp(2.2rem,5vw,3.6rem);letter-spacing:-.03em;line-height:1.05}
.page-title p{margin:12px 0 0;color:#cfd8d6;max-width:60ch}
.leader{display:grid;grid-template-columns:minmax(220px,340px) 1fr;gap:56px;align-items:start}
.leader img{border-radius:4px;border-bottom:6px solid var(--gold)}
.leader p{max-width:62ch}
.approach{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:36px 56px}
.approach p{margin:0;color:var(--muted)}
/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:64px}
.contact-list{list-style:none;padding:0;margin:0}
.contact-list li{padding:18px 0;border-top:1px solid var(--line)}
.contact-list span{display:block;font-size:.9rem;color:var(--muted)}
.contact-list a{font-weight:700;font-size:1.08rem;text-decoration:none}
.contact-list a:hover{text-decoration:underline}
form{display:grid;gap:18px}
label{font-weight:600;font-size:.95rem;display:grid;gap:6px}
input,textarea{font:inherit;padding:12px 14px;border:1.5px solid #b9c3c1;border-radius:4px;background:#fff;color:var(--ink)}
textarea{min-height:150px;resize:vertical}
.form-note{font-size:.9rem;color:var(--muted);margin:0}
/* footer */
.site-foot{background:var(--ink);color:#cfd8d6;padding:48px 0;font-size:.93rem}
.site-foot .wrap{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
.site-foot a{color:#fff}
.site-foot p{margin:0 0 6px}
.site-foot .tagline{color:var(--gold);font-weight:600}
@media (max-width:860px){
  .expertise,.leader,.contact-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr 1fr}
  .steps li::after{display:none}
  .industries{columns:2}
  section{padding:64px 0}
}
@media (max-width:520px){
  nav ul{gap:14px}
  .brand-logo{height:32px}
  .steps{grid-template-columns:1fr}
  .industries{columns:1}
  .hero{min-height:70vh}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.hero iframe{display:none}}