/* ==========================================================================
   Header / Nav
   ========================================================================== */
.topbar {
  background: var(--navy-950);
  color: rgba(243,245,244,0.75);
  font-size: 0.82rem;
}
.topbar .container { display: flex; justify-content: space-between; align-items: center; padding-top: 8px; padding-bottom: 8px; flex-wrap: wrap; gap: 6px; }
.topbar a { color: inherit; }
.topbar a:hover { color: var(--amber-500); }
.topbar__contacts { display: flex; gap: 18px; flex-wrap: wrap; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--navy-950);
  border-bottom: 1px solid var(--line-on-dark);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--white); }
.brand__mark {
  width: 40px; height: 40px; border-radius: var(--radius);
  background: var(--amber-500); color: var(--navy-950);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-weight: 700; font-size: 1.1rem;
  flex-shrink: 0;
}
.brand__text { line-height: 1.2; }
.brand__text strong { display: block; font-family: var(--font-display); font-size: 1.05rem; letter-spacing: 0.01em; }
.brand__text span { display: block; font-size: 0.68rem; color: rgba(243,245,244,0.6); }

.nav { display: flex; align-items: center; gap: 6px; }
.nav a {
  color: rgba(243,245,244,0.85);
  padding: 10px 14px;
  font-size: 0.92rem;
  font-weight: 500;
  border-radius: var(--radius);
}
.nav a:hover, .nav a[aria-current="page"] { color: var(--white); background: rgba(255,255,255,0.06); }
.nav a.nav__cta { background: var(--amber-500); color: var(--navy-950); font-weight: 600; }
.nav a.nav__cta:hover { background: var(--amber-600); }

.nav-toggle {
  display: none;
  width: 42px; height: 42px;
  background: transparent; border: 1px solid var(--line-on-dark); border-radius: var(--radius);
  color: var(--paper);
  align-items: center; justify-content: center;
}

@media (max-width: 960px) {
  .nav-toggle { display: inline-flex; }
  .nav {
    position: fixed; inset: var(--header-h) 0 0 0;
    background: var(--navy-950);
    flex-direction: column;
    align-items: stretch;
    padding: 12px 20px 32px;
    gap: 2px;
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.18s ease, transform 0.18s ease;
    overflow-y: auto;
  }
  .nav.is-open { opacity: 1; transform: translateY(0); pointer-events: auto; }
  .nav a { padding: 14px 10px; font-size: 1.02rem; border-bottom: 1px solid var(--line-on-dark); }
  .nav a.nav__cta { margin-top: 10px; text-align: center; border-bottom: none; }
  .topbar__contacts span:last-child { display: none; }
}