/* Clean black & white, mobile-first */
:root{--bg:#fff;--fg:#0b0b0b;--muted:#5d5d5d;--line:#e8e8e8}
*{box-sizing:border-box}html,body{margin:0}
body{font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial;color:var(--fg);background:var(--bg);line-height:1.55}
a{color:inherit}
.container{max-width:1050px;margin:0 auto;padding:0 18px}
.section{padding:56px 0}.alt{background:#fafafa;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.site-header{position:sticky;top:0;background:#fff;border-bottom:1px solid var(--line)}
.header-inner{display:flex;justify-content:space-between;align-items:center;padding:14px 0}
.brand{display:flex;gap:12px;align-items:center}
.brand-mark{width:40px;height:40px;border:2px solid var(--fg);display:grid;place-items:center;font-weight:800}
.brand-name{font-weight:900}.brand-tag{font-size:12px;color:var(--muted)}
.nav{display:flex;gap:14px}.btn{background:var(--fg);color:#fff;padding:10px 14px;border-radius:10px}
.hero{padding:64px 0}.hero-inner{display:grid;grid-template-columns:1.2fr .8fr;gap:22px}
h1{font-size:42px;margin:0 0 10px}.lead{color:var(--muted)}
.card{border:1px solid var(--line);border-radius:14px;padding:18px}
.two-col{display:grid;grid-template-columns:1.2fr .8fr;gap:22px}
.panel{border:1px solid var(--line);border-radius:14px;padding:18px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.service{border:1px solid var(--line);border-radius:14px;padding:16px}
.chips{display:flex;gap:8px;flex-wrap:wrap}.chip{border:1px solid var(--line);padding:6px 10px;border-radius:999px}
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.contact-card{border:1px solid var(--line);border-radius:14px;padding:16px}
.site-footer{border-top:1px solid var(--line);padding:18px 0}
@media(max-width:860px){.hero-inner,.two-col,.grid,.contact-grid{grid-template-columns:1fr}}