.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}
.header-inner {
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 12px;
  position: relative;
  min-width: 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  flex: 1 1 auto;
}
.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  background: linear-gradient(135deg, var(--accent), #7c5cff);
  color: #fff;
}
.brand-logo {
  width: 40px;
  height: 40px;
  object-fit: contain;
  border-radius: 14px;
}
.brand-text { display: grid; gap: 2px; min-width: 0; max-width: 100%; flex: 1 1 auto; }
.brand-title { font-weight: 900; font-size: 14px; line-height: 1.1; }
.brand-sub { font-size: 11px; color: var(--muted); font-weight: 700; }
.brand-title,
.brand-sub{
  display: block;
  white-space: normal;
  overflow: visible;
  text-overflow: clip;
  word-break: break-word;
}

.nav-toggle {
  border: 1px solid rgba(0,0,0,0.14);
  background: #fff;
  border-radius: 12px;
  padding: 10px 12px;
  width: 46px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.nav-icon { display: inline-flex; flex-direction: column; gap: 5px; width: 20px; height: 18px; }
.nav-icon span { display: block; height: 2px; background: #1f1f24; border-radius: 10px; transition: transform .25s ease, opacity .2s ease, width .2s ease; width: 100%; }
.nav-toggle.is-open .nav-icon span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open .nav-icon span:nth-child(2) { opacity: 0; width: 0; }
.nav-toggle.is-open .nav-icon span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.site-nav {
  position: absolute;
  top: calc(var(--header-h) - 8px);
  right: 0;
  left: 0;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 16px;
  padding: 14px 14px;
  box-shadow: var(--shadow-soft);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-8px) scale(0.98);
  transition: opacity .22s ease, transform .22s ease, visibility .22s ease;
}
.site-nav.open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}
.nav-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 0;
}
.nav-links a {
  font-weight: 900;
  padding: 10px 12px;
  border-radius: 12px;
}
.nav-links a:hover { background: rgba(0,0,0,0.04); }

.nav-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.social-links {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.social-link {
  width: 40px;
  height: 40px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(0,0,0,0.14);
  background: #fff;
}
.social-link svg{ display:block; }
.social-link:hover { box-shadow: var(--shadow-soft); }

.cta-links { display: flex; gap: 10px; flex-wrap: wrap; }

.header-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
}
.header-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: flex-end;
}
.header-actions .social-links{ flex-wrap: nowrap; }
.header-actions .social-link{ flex: 0 0 auto; }
.header-actions .cta-links{ flex-wrap: nowrap; }
.header-actions .btn{ white-space: nowrap; }
.header-actions .social-links { display: none; }
.mobile-only { display: none; }

@media (min-width: 900px) {
  .nav-toggle { display: none; }
  .site-nav {
    position: static;
    display: flex;
    align-items: center;
    gap: 14px;
    background: transparent;
    border: none;
    padding: 0;
    box-shadow: none;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: none;
  }
  .nav-links { flex-direction: row; padding: 0; gap: 6px; }
  .header-actions { flex-direction: row; align-items: center; gap: 12px; }
  .header-actions .social-links { display: flex; }
  .mobile-only { display: none !important; }

  .site-header.is-social-collapse .nav-toggle { display: inline-flex; }
  .site-header.is-social-collapse .site-nav {
    position: absolute;
    top: calc(var(--header-h) - 8px);
    right: 0;
    left: 0;
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 16px;
    padding: 14px 14px;
    box-shadow: var(--shadow-soft);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-8px) scale(0.98);
  }
  .site-header.is-social-collapse .site-nav.open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0) scale(1);
  }
  .site-header.is-social-collapse .nav-links {
    flex-direction: column;
    padding: 0;
    gap: 10px;
  }
  .site-header.is-social-collapse .header-actions .social-links { display: none; }
  .site-header.is-social-collapse .nav-social { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 12px; }
}

@media (max-width: 899px) {
  .mobile-only { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 12px; }
}