.site-header{
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
  background: rgba(10,10,10,.75);
  border-bottom: 1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:16px;
  padding: 12px 0;
}
.brand-logo{
  height: 44px;
  width: auto;
  display:block;
}
.nav{
  display:flex;
  gap:14px;
  margin-left:auto;
  align-items:center;
}
.nav-link{
  padding:8px 10px;
  border-radius:10px;
  text-decoration:none;
}
.nav-link-strong{
  border: 1px solid rgba(255,255,255,.18);
}
.header-phone{
  padding:8px 10px;
  border-radius:10px;
  border: 1px solid rgba(255,255,255,.12);
}

.nav-toggle{
  display:none;
  border:1px solid rgba(255,255,255,.14);
  background:transparent;
  color:inherit;
  border-radius:10px;
  padding:8px 10px;
}

@media (max-width: 860px){
  .nav{ display:none; }
  .nav.is-open{ display:flex; flex-direction:column; position:absolute; right:20px; top:64px; background:rgba(10,10,10,.95); border:1px solid var(--line); padding:10px; border-radius:14px; }
  .nav-toggle{ display:inline-flex; margin-left:auto; }
  .header-phone{ display:none; }
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding: 12px 16px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,.14);
  text-decoration:none;
  font-weight: 600;
}
.btn-primary{
  background: var(--accent);
  border-color: rgba(255,255,255,.10);
  color:#fff;
}
.btn-secondary{
  background: transparent;
}

.section{ padding: 54px 0; }
.section-muted{ background: rgba(255,255,255,.03); border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
.section-title{ margin:0 0 18px 0; font-size: 26px; }
.section-head{ display:flex; justify-content:space-between; align-items:baseline; gap:18px; }

.grid-3{ display:grid; grid-template-columns: repeat(3, 1fr); gap:16px; }
.grid-4{ display:grid; grid-template-columns: repeat(4, 1fr); gap:12px; }
.grid-2{ display:grid; grid-template-columns: repeat(2, 1fr); gap:16px; }

@media (max-width: 860px){
  .grid-3,.grid-4,.grid-2{ grid-template-columns: 1fr; }
}

.card{
  background: rgba(255,255,255,.03);
  border:1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
}
.card-title{ margin:0 0 8px 0; font-size: 18px; }
.card-text{ margin:0; color: var(--muted); }

.pill{
  border:1px solid rgba(255,255,255,.12);
  border-radius: 999px;
  padding: 12px 14px;
  text-align:center;
  color: var(--muted);
}

.site-footer{
  border-top: 1px solid var(--line);
  padding: 26px 0;
  background: rgba(0,0,0,.35);
}
.footer-inner{
  display:grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 18px;
}
.footer-title{ font-weight: 700; margin-bottom: 6px; }
.footer-link{ display:block; margin: 6px 0; color: var(--muted); }
@media (max-width: 860px){
  .footer-inner{ grid-template-columns: 1fr; }
}