/* Global site header — canonical light navigation based on the homepage scrolled state. */
:root { --site-header-height: 72px; }

.site-header,
.site-header.scrolled,
body.blog-page .site-header,
body.blog-index-page .site-header,
body.service-page .site-header,
body.faq-page .site-header,
body.standard-article-page .site-header,
body.general-article-page .site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  height: var(--site-header-height);
  min-height: var(--site-header-height);
  padding: 0 max(5vw, 22px);
  background: rgba(250, 248, 243, .96);
  color: var(--ink, #172329);
  border: 0;
  border-bottom: 1px solid rgba(23, 35, 41, .12);
  box-shadow: 0 1px 0 rgba(23, 35, 41, .04);
  backdrop-filter: blur(16px);
}

.site-header .brand {
  display: flex;
  align-items: center;
  min-width: 180px;
  color: inherit;
  text-decoration: none;
}

.site-header .brand-logo,
.site-header:not(.scrolled) .brand-logo,
.site-header.scrolled .brand-logo {
  display: block;
  width: 180px;
  height: auto;
  object-fit: contain;
}

.site-header .brand-logo-dark,
.site-header:not(.scrolled) .brand-logo-dark { display: block; }

.site-header .brand-logo-light,
.site-header:not(.scrolled) .brand-logo-light { display: none; }

.site-header .nav {
  position: static;
  display: flex;
  align-items: center;
  gap: 32px;
  padding: 0;
  background: transparent;
  color: inherit;
  box-shadow: none;
  transform: none;
}

.site-header .nav a {
  display: inline-flex;
  align-items: center;
  min-height: 0;
  padding: 0;
  border: 0;
  color: inherit;
  font-size: 13px;
  line-height: 1.6;
  letter-spacing: .08em;
  text-decoration: none;
}

.site-header .nav > a:not(.nav-cta) { position: relative; }
.site-header .nav > a:not(.nav-cta)::after {
  content: "";
  position: absolute;
  bottom: -7px;
  left: 0;
  width: 0;
  height: 1px;
  background: currentColor;
  transition: width .3s ease;
}
.site-header .nav > a:not(.nav-cta):hover::after,
.site-header .nav > a:not(.nav-cta)[aria-current="page"]::after { width: 100%; }

.site-header .nav-cta {
  padding: 9px 19px;
  border: 1px solid currentColor;
  border-radius: 999px;
}

.site-header .menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 8px;
  border: 0;
  background: transparent;
  color: inherit;
  cursor: pointer;
}

.site-header .menu-toggle span {
  display: block;
  width: 24px;
  height: 1px;
  margin: 7px auto;
  background: currentColor;
  transition: transform .25s ease;
}

@media (max-width: 900px) {
  .site-header,
  .site-header.scrolled { padding-inline: 22px; }

  .site-header .brand { min-width: 136px; }
  .site-header .brand-logo,
  .site-header:not(.scrolled) .brand-logo,
  .site-header.scrolled .brand-logo { width: 136px; }
  .site-header .menu-toggle { display: block; }

  .site-header .nav {
    position: fixed;
    inset: var(--site-header-height) 0 auto;
    z-index: 49;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px 25px 25px;
    background: var(--paper, #faf8f3);
    color: var(--ink, #172329);
    box-shadow: 0 10px 30px rgba(0, 0, 0, .13);
    transform: translateY(-130%);
    visibility: hidden;
    transition: transform .35s ease, visibility 0s linear .35s;
  }

  .site-header .nav.open {
    transform: translateY(0);
    visibility: visible;
    transition-delay: 0s;
  }

  .site-header .nav a,
  .site-header .nav-cta {
    min-height: 48px;
    padding: 13px 15px;
    border: 0;
    border-bottom: 1px solid rgba(23, 35, 41, .16);
    border-radius: 0;
    font-size: 16px;
  }

  .site-header .nav > a::after { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .site-header,
  .site-header .nav,
  .site-header .menu-toggle span { transition: none; }
}