/* =========================================================
   site.css — header, navigation, footer, page hero
   ========================================================= */

/* ---------------- header ---------------- */
.header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.95);
  backdrop-filter:blur(14px) saturate(150%);
  border-bottom:1px solid var(--line);
}
.header__inner{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:flex;align-items:center;gap:11px;flex:none;min-width:0}
.brand__mark{
  width:38px;height:38px;border-radius:10px;background:var(--ink);color:#fff;
  display:grid;place-items:center;font-weight:800;font-size:.95rem;letter-spacing:-.03em;flex:none;
}
.brand__text{display:flex;flex-direction:column;line-height:1.18;min-width:0}
.brand__text b{font-size:.97rem;font-weight:750;letter-spacing:-.02em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand__text small{font-size:.7rem;color:var(--text-3);letter-spacing:.03em}

.nav{display:flex;gap:2px;margin-left:8px;flex-wrap:nowrap}
.nav a{
  padding:9px 12px;border-radius:8px;font-size:.9rem;font-weight:550;color:var(--text-2);
  white-space:nowrap;transition:color .18s,background .18s;
}
.nav a:hover{color:var(--blue);background:var(--bg-tint)}

.header__cta{display:flex;align-items:center;gap:9px;margin-left:auto;flex:none}
.lang-switch{
  padding:8px 12px;border:1px solid var(--line-2);border-radius:8px;
  font-size:.82rem;font-weight:650;color:var(--text-2);
  transition:border-color .18s,color .18s;
}
.lang-switch:hover{border-color:var(--blue);color:var(--blue)}
.burger{display:none;width:40px;height:40px;border:1px solid var(--line-2);border-radius:9px;place-items:center}

.mobile-nav{
  display:none;flex-direction:column;gap:2px;
  padding:14px clamp(18px,4vw,32px) 24px;border-top:1px solid var(--line);background:#fff;
}
.mobile-nav[hidden]{display:none}
.mobile-nav.is-open{display:flex}
.mobile-nav a{padding:13px 4px;font-size:1.05rem;font-weight:600;border-bottom:1px solid var(--line)}
.mobile-nav .btn{margin-top:16px;border-bottom:0}
.mobile-nav__lang{color:var(--blue);font-weight:650}

/* ---------------- page hero ---------------- */
.page-hero{
  position:relative;background:var(--ink);color:#fff;
  padding-block:clamp(46px,6vw,78px);overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(58% 60% at 84% 8%,rgba(30,136,229,.32),transparent 62%),
    radial-gradient(46% 52% at 6% 96%,rgba(255,143,0,.18),transparent 66%);
}
.page-hero > .wrap{position:relative;z-index:1}
.page-hero .eyebrow{color:var(--amber-soft)}
.page-hero h1{font-size:clamp(1.75rem,4vw,2.85rem);max-width:24ch;font-weight:760;letter-spacing:-.026em}
.page-hero .lead{color:#b6c8da;margin-top:16px;font-size:clamp(.98rem,1.7vw,1.1rem)}
.page-hero .hero__actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}

/* ---------------- footer ---------------- */
.footer{background:var(--ink);color:#c3d3e2;padding-block:clamp(44px,5.5vw,64px) 26px}
.footer__grid{display:grid;gap:32px;grid-template-columns:minmax(0,1.6fr) repeat(2,minmax(0,1fr))}
.brand--footer .brand__mark{background:rgba(255,255,255,.12)}
.brand--footer .brand__text b{color:#fff}
.brand--footer .brand__text small{color:#8fa6bc}
.footer__about{font-size:.9rem;color:#9db2c8;margin-top:16px;max-width:44ch}
.footer h4{font-size:.78rem;letter-spacing:.13em;text-transform:uppercase;color:#8fa6bc;margin-bottom:14px;font-weight:700}
.footer li + li{margin-top:10px}
.footer li a,.footer li span{font-size:.92rem;color:#c3d3e2;transition:color .18s}
.footer li a:hover{color:#fff}
.footer__bottom{
  margin-top:clamp(30px,4vw,46px);padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px 22px;justify-content:space-between;
  font-size:.85rem;color:#8fa6bc;
}
.footer__bottom ul{display:flex;gap:18px;flex-wrap:wrap}
.footer__bottom a:hover{color:#fff}

/* ---------------- responsive ---------------- */
@media (max-width:1080px){
  .nav a{padding:9px 9px;font-size:.86rem}
  .brand__text small{display:none}
}
@media (max-width:900px){
  .footer__grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:840px){
  .nav{display:none}
  .burger{display:grid}
  .header__cta .btn{display:none}
  .mobile-nav{display:none}
  .mobile-nav.is-open{display:flex}
}
@media (max-width:560px){
  .header__inner{height:64px}
  .brand__text b{max-width:52vw}
  .footer__grid{grid-template-columns:1fr}
}