/* ==========================================================================
   Site header
   Mirrors the source site's header config, read from its data-current-styles:
     layout navRight · mobile logoLeftNavRight · doubleLineHamburger @1px
     headerStyle "theme" / sectionTheme "bright" → cream ground, indigo nav
     border-bottom 0px · menuOverlayTheme "dark-bold" → indigo overlay
     drop shadow off · opacity 100% · header-width-full
     fixed header, style "scroll-back"  (tweak-fixed-header-style-scroll-back)
   Collapses to the hamburger at 768px, the Squarespace 7.1 default.
   ========================================================================== */

/* --- Skip link ----------------------------------------------------------- */
.skip-link {
  position: absolute;
  left: var(--space-sm);
  top: var(--space-sm);
  z-index: var(--z-skiplink);
  transform: translateY(-200%);
  padding: var(--space-2xs) var(--space-sm);
  background: var(--indigo);
  color: var(--pure-white);
  font-family: var(--font-ui);
  font-size: var(--type-cta);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-cta);
  text-transform: uppercase;
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: transform var(--duration-fast) var(--ease);
}
.skip-link:focus-visible { transform: translateY(0); }

/* --- Sticky shell -------------------------------------------------------- */
/* The announcement bar and header travel together, so "scroll back to reveal"
   hides both as one block. */
.announcement-bar,
.site-header {
  position: fixed;
  left: 0;
  right: 0;
  z-index: var(--z-header);
}
.announcement-bar { top: 0; }
.site-header {
  top: var(--announcement-height, 0px);
  transition: transform var(--duration-normal) var(--ease);
}
.announcement-bar { transition: transform var(--duration-normal) var(--ease); }

/* scroll-back: hidden while scrolling down, revealed on any upward scroll */
.site-header.is-hidden,
.announcement-bar.is-hidden {
  transform: translateY(calc(-100% - var(--announcement-height, 0px)));
}

/* Page offset so content is not sat on by the fixed header. Applied to <body>
   by site-chrome.js via --chrome-offset. */
body { padding-top: var(--chrome-offset, var(--header-height)); }

@media (prefers-reduced-motion: reduce) {
  .site-header,
  .announcement-bar,
  .skip-link { transition: none; }
}

/* --- Announcement bar (removed per user request) ------------------------- */
.announcement-bar {
  display: none !important;
}
.announcement-bar__inner {
  width: 100%;
  padding: var(--space-2xs) var(--page-gutter);
  text-align: center;
}
.announcement-bar__text {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--type-small);
  font-weight: var(--weight-bold);
  line-height: var(--leading-tight);
}
.announcement-bar__text a { color: inherit; text-underline-offset: 3px; }

/* --- Header bar ---------------------------------------------------------- */
.site-header {
  background: var(--color-header-bg);
  color: var(--color-header-fg);
  border-bottom: var(--header-border-width) solid hsla(var(--indigo-hsl), 0.15);
}
.site-header__inner {
  min-height: var(--header-height);
  height: var(--header-height);
  padding-inline: var(--page-gutter);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
}

/* --- Logo (removed per user request) ------------------------------------- */
.site-header__logo {
  display: none !important;
}

/* --- Desktop nav (layout: centered thin line) ---------------------------- */
.site-nav {
  margin-inline: auto;
  display: flex;
  justify-content: center;
}
.site-nav__list {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  margin: 0;
  padding: 0;
  list-style: none;
}
.site-nav__item { position: relative; }

.site-nav__link,
.site-nav__folder-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3xs);
  padding: 2px 0;
  border: 0;
  background: none;
  color: inherit;
  font-family: var(--font-nav);
  font-size: var(--type-nav);
  font-weight: var(--weight-bold);
  line-height: var(--leading-nav);
  letter-spacing: var(--tracking-nav);
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
}
.site-nav__link::after,
.site-nav__folder-toggle::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--duration-fast) var(--ease);
}
.site-nav__link:hover::after,
.site-nav__folder-toggle:hover::after,
.site-nav__item:focus-within .site-nav__link::after,
.site-nav__item:focus-within .site-nav__folder-toggle::after { transform: scaleX(1); }

@media (prefers-reduced-motion: reduce) {
  .site-nav__link::after,
  .site-nav__folder-toggle::after { transition: none; }
}

/* Folder caret — matches the source's closedArrowHeadFilled at 1em */
.site-nav__caret {
  width: 0.5em;
  height: 0.5em;
  transition: transform var(--duration-fast) var(--ease);
}
.site-nav__folder-toggle[aria-expanded="true"] .site-nav__caret { transform: rotate(180deg); }

/* --- Desktop dropdown ---------------------------------------------------- */
.site-nav__folder {
  position: absolute;
  top: 100%;
  left: 50%;
  translate: -50% 0;
  min-width: 15rem;
  margin: 0;
  padding: var(--space-2xs);
  list-style: none;
  background: var(--pure-white);
  color: var(--indigo);
  border-radius: var(--radius-sm);
  box-shadow: 0 8px 24px hsla(var(--indigo-hsl), 0.18);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration-fast) var(--ease),
              visibility 0s linear var(--duration-fast);
}
.site-nav__folder-toggle[aria-expanded="true"] + .site-nav__folder {
  opacity: 1;
  visibility: visible;
  transition: opacity var(--duration-fast) var(--ease),
              visibility 0s linear 0s;
}
.site-nav__folder-link {
  display: block;
  padding: var(--space-2xs) var(--space-xs);
  border-radius: var(--radius-sm);
  color: inherit;
  font-family: var(--font-body);
  font-size: var(--type-small);
  text-decoration: none;
}
.site-nav__folder-link:hover,
.site-nav__folder-link:focus-visible { background: var(--cream); }

/* --- Actions ------------------------------------------------------------- */
.site-header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex: 0 0 auto;
}
.site-header__actions .btn--cta {
  display: none !important; /* DONATE is now in the primary nav list */
}

/* Source: primary-button-style-solid + primary-button-shape-rounded */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--button-pad-y) var(--button-pad-x);
  border: 0;
  border-radius: var(--radius-button);
  font-family: var(--font-ui);
  font-size: var(--type-cta);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-cta);
  line-height: var(--leading-tight);
  text-decoration: none;
  cursor: pointer;
  transition: opacity var(--duration-fast) var(--ease);
}
.btn--cta { background: var(--color-cta-bg); color: var(--color-cta-fg); }
.btn--cta:hover { opacity: 0.85; }
.btn--block { display: flex; width: 100%; }

@media (prefers-reduced-motion: reduce) { .btn { transition: none; } }

/* --- Burger (two horizontal lines icon) ---------------------------------- */
.burger {
  display: none;          /* shown below the breakpoint */
  place-items: center;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 0;
  background: var(--cream);
  color: var(--indigo);
  border-radius: 50%;
  box-shadow: 0 2px 8px hsla(var(--indigo-hsl), 0.2);
  cursor: pointer;
}
.burger__box {
  position: relative;
  display: block;
  width: 20px;
  height: 10px;
}
.burger__bar {
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  border-radius: 1px;
  background: currentColor;
  transition: transform var(--duration-fast) var(--ease),
              top var(--duration-fast) var(--ease);
}
.burger__bar--top    { top: 0; }
.burger__bar--bottom { top: 8px; }

.burger[aria-expanded="true"] .burger__bar--top    { top: 4px; transform: rotate(45deg); }
.burger[aria-expanded="true"] .burger__bar--bottom { top: 4px; transform: rotate(-45deg); }

@media (prefers-reduced-motion: reduce) { .burger__bar { transition: none; } }

/* --- Mobile overlay ------------------------------------------------------ */
.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: var(--z-overlay);
  padding-top: var(--chrome-offset, var(--header-height-mobile));
  background: var(--color-overlay-bg);
  overflow-y: auto;
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease);
}
.mobile-nav.is-open { opacity: 1; }         /* source menuOverlayAnimation: fade */
.mobile-nav[hidden] { display: none; }

@media (prefers-reduced-motion: reduce) { .mobile-nav { transition: none; } }

.mobile-nav__panel {
  max-width: var(--page-max);
  margin-inline: auto;
  padding: var(--space-md) var(--page-gutter) var(--space-2xl);
}
.mobile-nav__list { margin: 0 0 var(--space-lg); padding: 0; list-style: none; }
.mobile-nav {
  color: var(--color-overlay-fg);
}
.mobile-nav__item { border-bottom: 1px solid hsla(var(--cream-hsl), 0.25); }

.mobile-nav__link,
.mobile-nav__folder-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  width: 100%;
  padding: var(--space-sm) 0;
  border: 0;
  background: none;
  color: var(--color-overlay-fg);
  font-family: var(--font-nav);
  font-size: 1.25rem;
  text-transform: uppercase;
  font-weight: var(--weight-bold);
  text-align: left;
  text-decoration: none;
  cursor: pointer;
}
.mobile-nav__folder-toggle .site-nav__caret { width: 0.6em; height: 0.6em; }

.mobile-nav__folder {
  margin: 0;
  padding: 0 0 var(--space-sm) var(--space-sm);
  list-style: none;
}
.mobile-nav__folder[hidden] { display: none; }
.mobile-nav__folder-link {
  display: block;
  padding: var(--space-2xs) 0;
  color: var(--color-overlay-fg);
  font-family: var(--font-body);
  font-size: var(--type-body);
  text-decoration: none;
}

/* The overlay ground is indigo (source menuOverlayTheme "dark-bold") and so is
   --color-cta-bg, so the default CTA renders as bare yellow text with no
   button shape on top of it. Invert inside the overlay: yellow fill, indigo
   label. Measured 8.11:1, comfortably AA. */
.mobile-nav .btn--cta {
  background: var(--cta-yellow);
  color: var(--indigo);
}

/* --- Breakpoint (768px — keep in sync with --bp-mobile) ------------------ */
@media (max-width: 767.98px) {
  :root { --announcement-height: 0px; }
  .site-header {
    background: transparent;
    border-bottom: none;
    pointer-events: none;
  }
  .site-header__inner {
    min-height: auto;
    height: var(--header-height-mobile);
    padding-inline: var(--page-gutter);
    justify-content: flex-end;
  }
  .site-header__logo { display: none !important; }
  .site-nav { display: none !important; }
  .site-header__actions {
    margin-left: auto;
    pointer-events: auto;
  }
  .site-header__actions .btn--cta { display: none !important; }
  .burger { display: grid; }
}

@media (min-width: 768px) {
  .mobile-nav { display: none !important; }
}

/* --- Focus ---------------------------------------------------------------- */
.site-header :focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 3px;
  border-radius: 2px;
}
/* The overlay and the bar are indigo grounds, so an indigo ring would be
   invisible against them. */
.mobile-nav :focus-visible,
.announcement-bar :focus-visible {
  outline: 2px solid var(--cream);
  outline-offset: 3px;
  border-radius: 2px;
}

/* Scroll lock applied while the overlay is open */
body.chrome-scroll-locked { overflow: hidden; }