/* Header styles scoped to .site-header. Builds on base.css */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: #ffffffcc;
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(0,0,0,0.06);
}
.site-header .header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
/* Brand */
.site-header .brand-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: inherit;
  text-decoration: none;
}
.site-header .brand-link:focus-visible {
  outline: 3px solid #2b6cb0; /* soft blue focus */
  outline-offset: 3px;
  border-radius: 6px;
}
.site-header .brand-mark {
  font-size: 1.35rem;
}
.site-header .brand-name {
  font-weight: 700; /* use head font from head assets */
  letter-spacing: 0.2px;
}
/* Nav */
.primary-nav {
  /* visible by default for no-JS and desktop */
}
.nav-list {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-item a {
  display: inline-block;
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  text-decoration: none;
  color: #1a202c; /* stone dark */
}
.nav-item a:hover {
  background: #edf2f7; /* soft stone */
}
.nav-item a:focus-visible {
  outline: 3px solid #c6a64b; /* gold focus */
  outline-offset: 2px;
}
/* Menu toggle */
.menu-toggle {
  display: none;
  background: transparent;
  border: 2px solid transparent;
  padding: 0.5rem;
  border-radius: 8px;
  color: #1a202c;
}
.menu-toggle:focus-visible {
  outline: 3px solid #2b6cb0;
  outline-offset: 2px;
}
.menu-toggle .fa-bars { font-size: 1.25rem; }
/* Mobile behavior: only hide nav when JS is enabled */
@media (max-width: 960px) {
  .menu-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .js .primary-nav { display: none; }
  .js .site-header.nav-open .primary-nav { display: block; }
  .js .primary-nav .nav-list { flex-direction: column; align-items: flex-start; gap: 0; }
  .js .primary-nav .nav-item a { width: 100%; padding: 0.75rem 0.75rem; }
  .js .site-header.nav-open .menu-toggle .fa-bars { transform: rotate(90deg); transition: transform 200ms ease; }
  /* Mobile panel styling */
  .js .primary-nav {
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    background: #ffffff;
    border-bottom: 1px solid rgba(0,0,0,0.06);
    box-shadow: 0 6px 18px rgba(0,0,0,0.06);
    padding: 0.5rem 0.5rem 0.75rem;
  }
}
/* Skip link */
.skip-link {
  position: absolute;
  left: -9999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.skip-link:focus {
  position: fixed;
  left: 1rem;
  top: 1rem;
  width: auto;
  height: auto;
  padding: 0.5rem 0.75rem;
  background: #2b6cb0;
  color: #fff;
  border-radius: 6px;
  z-index: 1100;
}