/* header.css — floating pill header (partials/header.html) */

.site-header {
  position: fixed; top: var(--header-top); left: 0; right: 0; z-index: 100;
  margin: 0 auto; width: min(1180px, calc(100% - 2 * var(--gutter)));
  height: var(--header-h);
  border-radius: 999px;
  border: 1px solid transparent;
  transition: background .35s, border-color .35s, box-shadow .35s, backdrop-filter .35s;
}
.site-header.scrolled, .site-header.open {
  background: rgba(250, 246, 239, .82);
  border-color: var(--line);
  box-shadow: 0 18px 44px -24px rgba(21, 42, 74, .45);
  backdrop-filter: blur(14px) saturate(1.3);
  -webkit-backdrop-filter: blur(14px) saturate(1.3);
}
/* On pages whose hero is navy the header starts light-on-dark */
.header-on-dark .site-header:not(.scrolled):not(.open) { color: var(--cream); }
.header-on-dark .site-header:not(.scrolled):not(.open) .nav-toggle span { background: var(--cream); }
.header-on-dark .site-header:not(.scrolled):not(.open) .nav-cta { background: var(--gold); color: var(--ink); }

.header-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; padding: 0 10px 0 22px; gap: 24px; }

.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand-mark { width: 34px; height: 34px; border-radius: 50%; }
.brand-name { font-family: var(--font-display); font-size: 21px; letter-spacing: -.01em; white-space: nowrap; }

.site-nav { display: flex; align-items: center; gap: 28px; }
.site-nav ul { display: flex; gap: 4px; }
.site-nav ul a {
  position: relative; display: block; padding: 8px 14px;
  font-size: 13px; font-weight: 500; letter-spacing: .12em; text-transform: uppercase;
  transition: color .2s;
}
.site-nav ul a::after {
  content: ""; position: absolute; left: 50%; right: 50%; bottom: 3px; height: 1px; background: var(--gold);
  transition: left .35s var(--ease), right .35s var(--ease);
}
.site-nav ul a:hover, .site-nav ul a.active { color: var(--gold); }
.site-nav ul a:hover::after, .site-nav ul a.active::after { left: 14px; right: 14px; }
.nav-cta { padding: 12px 22px; font-size: 13px; }

.nav-toggle { display: none; width: 48px; height: 48px; border-radius: 50%; background: none; border: 0; flex-direction: column; justify-content: center; align-items: center; gap: 5px; cursor: pointer; }
.nav-toggle span { width: 22px; height: 1.5px; background: var(--ink); transition: transform .3s, opacity .3s, background .3s; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

@media (max-width: 900px) {
  .nav-toggle { display: flex; }
  .site-nav {
    position: absolute; top: calc(100% + 10px); left: 0; right: 0;
    background: var(--cream); color: var(--ink);
    border: 1px solid var(--line); border-radius: 28px;
    flex-direction: column; align-items: stretch; gap: 18px;
    padding: 20px 20px 24px;
    opacity: 0; transform: translateY(-10px); pointer-events: none;
    box-shadow: 0 30px 60px -30px rgba(21, 42, 74, .5);
    transition: opacity .25s, transform .3s var(--ease);
  }
  .site-nav.open { opacity: 1; transform: none; pointer-events: auto; }
  .site-nav ul { flex-direction: column; gap: 2px; }
  .site-nav ul a { font-family: var(--font-display); font-size: 26px; text-transform: none; letter-spacing: -.01em; padding: 10px 8px; }
  .site-nav ul a::after { display: none; }
  .nav-cta { width: 100%; }
  .header-on-dark .site-header:not(.scrolled):not(.open) .site-nav { color: var(--ink); }
}