/* ==========================================================================
   NAVIGATION
   Site header, primary nav, mobile drawer, footer, breadcrumb, language toggle.
   ========================================================================== */

/* ----------------------------------------------------------------------
   SITE HEADER
   ---------------------------------------------------------------------- */

.site-header {
  position: sticky;
  inset-block-start: 0;
  z-index: var(--z-sticky);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-block-end: 1px solid transparent;
  transition:
    background var(--motion-base) var(--ease-out),
    border-block-end-color var(--motion-base) var(--ease-out),
    box-shadow var(--motion-base) var(--ease-out),
    block-size var(--motion-base) var(--ease-out);
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.96);
  border-block-end-color: var(--surface-border);
  box-shadow: var(--shadow-sm);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  block-size: var(--header-height);
  transition: block-size var(--motion-base) var(--ease-out);
}

.site-header.is-scrolled .site-header__inner {
  block-size: var(--header-height-scrolled);
}

/* Brand / logo */
.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--text-strong);
  font-family: var(--font-display);
  font-weight: var(--weight-black);
  font-size: var(--font-size-lg);
  letter-spacing: var(--tracking-tight);
}

.brand__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  inline-size: 2.5rem;
  block-size: 2.5rem;
  background: var(--color-navy-700);
  color: var(--color-ink-0);
  border-radius: var(--radius-md);
  font-family: var(--font-display);
  font-weight: var(--weight-black);
  font-size: 1rem;
  letter-spacing: -0.04em;
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
}

.brand__mark::before {
  content: "";
  position: absolute;
  inset-block-start: 0;
  inset-inline: 0;
  block-size: 0.4rem;
  background: var(--color-red-700);
}

.brand__mark::after {
  content: "";
  position: absolute;
  inset-block-end: 0;
  inset-inline: 0;
  block-size: 0.3rem;
  background: var(--color-gold-500);
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.05;
}

.brand__name {
  font-size: 1.125rem;
  letter-spacing: var(--tracking-tight);
  color: var(--text-strong);
}

.brand__tag {
  font-family: var(--font-sans);
  font-size: 0.625rem;
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--text-accent);
  margin-block-start: 0.125rem;
}

/* Primary nav */
.primary-nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.primary-nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
  padding: 0;
  margin: 0;
}

.primary-nav__link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: var(--nav-link-padding-y) var(--nav-link-padding-x);
  font-weight: var(--weight-semibold);
  font-size: var(--font-size-sm);
  color: var(--text-strong);
  text-decoration: none;
  border-radius: var(--nav-link-radius);
  letter-spacing: var(--tracking-wide);
  transition: background var(--motion-fast) var(--ease-out), color var(--motion-fast) var(--ease-out);
  position: relative;
}

.primary-nav__link:hover {
  background: var(--surface-bg-alt);
  color: var(--text-brand);
}

.primary-nav__link[aria-current="page"],
.primary-nav__link.is-active {
  color: var(--text-brand);
}

.primary-nav__link[aria-current="page"]::after,
.primary-nav__link.is-active::after {
  content: "";
  position: absolute;
  inset-block-end: -1.25rem;
  inset-inline: 0.5rem;
  block-size: 3px;
  background: var(--color-red-700);
  border-radius: 1.5px;
}

/* Header right actions */
.site-header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.375em;
  padding: 0.375em 0.75em;
  background: transparent;
  border: 1px solid var(--surface-border);
  color: var(--text-muted);
  font-size: var(--font-size-xs);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: background var(--motion-fast), color var(--motion-fast), border-color var(--motion-fast);
}

.lang-toggle:hover {
  background: var(--color-navy-50);
  color: var(--text-strong);
  border-color: var(--color-navy-300);
}

.lang-toggle__icon {
  inline-size: 1em;
  block-size: 1em;
}

/* Mobile menu button */
.menu-toggle {
  display: none;
  inline-size: 2.75rem;
  block-size: 2.75rem;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  color: var(--text-strong);
  cursor: pointer;
}

.menu-toggle:hover {
  background: var(--surface-bg-alt);
}

.menu-toggle__bar {
  display: block;
  inline-size: 1.25rem;
  block-size: 2px;
  background: currentColor;
  border-radius: 1px;
  position: relative;
  transition: transform var(--motion-base) var(--ease-out), background var(--motion-fast);
}

.menu-toggle__bar::before,
.menu-toggle__bar::after {
  content: "";
  position: absolute;
  inset-inline-start: 0;
  inline-size: 100%;
  block-size: 2px;
  background: currentColor;
  border-radius: 1px;
  transition: transform var(--motion-base) var(--ease-out), top var(--motion-base) var(--ease-out);
}

.menu-toggle__bar::before { inset-block-start: -0.4rem; }
.menu-toggle__bar::after  { inset-block-start: 0.4rem; }

.menu-toggle[aria-expanded="true"] .menu-toggle__bar {
  background: transparent;
}

.menu-toggle[aria-expanded="true"] .menu-toggle__bar::before {
  transform: rotate(45deg);
  inset-block-start: 0;
}

.menu-toggle[aria-expanded="true"] .menu-toggle__bar::after {
  transform: rotate(-45deg);
  inset-block-start: 0;
}

@media (max-width: 62em) {
  .primary-nav {
    display: none;
  }
  .menu-toggle {
    display: inline-flex;
  }
}

/* ----------------------------------------------------------------------
   MOBILE DRAWER
   ---------------------------------------------------------------------- */

.mobile-drawer {
  position: fixed;
  inset-block-start: var(--header-height);
  inset-inline: 0;
  inset-block-end: 0;
  background: var(--surface-bg);
  z-index: calc(var(--z-sticky) - 1);
  padding: var(--space-6) var(--gutter) var(--space-12);
  overflow-y: auto;
  transform: translateY(-100%);
  visibility: hidden;
  transition: transform var(--motion-base) var(--ease-out), visibility var(--motion-base);
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.mobile-drawer.is-open {
  transform: translateY(0);
  visibility: visible;
}

.mobile-drawer__nav {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.mobile-drawer__nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-3);
  font-family: var(--font-display);
  font-weight: var(--weight-bold);
  font-size: var(--font-size-lg);
  color: var(--text-strong);
  text-decoration: none;
  border-block-end: 1px solid var(--surface-border);
}

.mobile-drawer__nav-link:hover,
.mobile-drawer__nav-link[aria-current="page"] {
  color: var(--text-brand);
}

.mobile-drawer__nav-link::after {
  content: "→";
  color: var(--text-subtle);
  font-weight: var(--weight-regular);
}

.mobile-drawer__cta {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-block-start: var(--space-4);
}

.mobile-drawer__contact {
  padding-block-start: var(--space-6);
  border-block-start: 1px solid var(--surface-border);
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  line-height: var(--leading-relaxed);
}

.mobile-drawer__contact a {
  color: var(--text-strong);
  font-weight: var(--weight-semibold);
}

@media (min-width: 62em) {
  .mobile-drawer {
    display: none;
  }
}

/* Lock scroll when drawer is open */
body.has-drawer-open {
  overflow: hidden;
  touch-action: none;
}

/* ----------------------------------------------------------------------
   FOOTER
   ---------------------------------------------------------------------- */

.site-footer {
  background: var(--color-navy-950);
  color: var(--color-ink-200);
  padding-block: var(--space-20) var(--space-12);
  margin-block-start: var(--space-20);
  position: relative;
  overflow: hidden;
}

.site-footer::before {
  content: "";
  position: absolute;
  inset-block-start: 0;
  inset-inline: 0;
  block-size: 4px;
  background: linear-gradient(90deg,
    var(--color-navy-700) 0%,
    var(--color-red-700) 33%,
    var(--color-ink-0) 66%,
    var(--color-gold-500) 100%);
}

.site-footer__top {
  display: grid;
  grid-template-columns: 2fr repeat(4, 1fr);
  gap: var(--space-10);
  align-items: start;
  margin-block-end: var(--space-12);
  padding-block-end: var(--space-10);
  border-block-end: 1px solid var(--color-navy-800);
}

@media (max-width: 62em) {
  .site-footer__top {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }
}

@media (max-width: 36em) {
  .site-footer__top {
    grid-template-columns: 1fr;
  }
}

.site-footer__brand {
  max-inline-size: 22rem;
}

.site-footer__brand .brand {
  color: var(--color-ink-0);
  margin-block-end: var(--space-4);
}

.site-footer__brand .brand__name {
  color: var(--color-ink-0);
}

.site-footer__tagline {
  color: var(--color-ink-300);
  font-size: var(--font-size-sm);
  line-height: var(--leading-relaxed);
  margin-block-end: var(--space-4);
}

.site-footer__group {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.site-footer__heading {
  font-family: var(--font-display);
  font-size: var(--font-size-xs);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-gold-400);
  margin-block-end: var(--space-3);
}

.site-footer__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.site-footer__link {
  color: var(--color-ink-200);
  text-decoration: none;
  font-size: var(--font-size-sm);
  transition: color var(--motion-fast), padding-inline-start var(--motion-fast);
}

.site-footer__link:hover {
  color: var(--color-ink-0);
  padding-inline-start: 0.25rem;
}

.site-footer__social {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-block-start: var(--space-3);
}

.site-footer__social-link {
  inline-size: 2.25rem;
  block-size: 2.25rem;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-ink-100);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background var(--motion-fast), transform var(--motion-fast), color var(--motion-fast);
}

.site-footer__social-link:hover {
  background: var(--color-navy-700);
  color: var(--color-ink-0);
  transform: translateY(-2px);
}

.site-footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
  font-size: var(--font-size-xs);
  color: var(--color-ink-400);
}

.site-footer__disclosure {
  background: var(--color-navy-900);
  border: 1px solid var(--color-navy-800);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  font-size: var(--font-size-xs);
  color: var(--color-ink-300);
  text-align: center;
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wide);
  margin-block-start: var(--space-8);
}

.site-footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.site-footer__legal a {
  color: var(--color-ink-300);
  text-decoration: none;
}

.site-footer__legal a:hover {
  color: var(--color-ink-0);
  text-decoration: underline;
}

.site-footer__credit {
  font-size: var(--font-size-xs);
  color: var(--color-ink-500);
}

.site-footer__credit a {
  color: inherit;
  text-decoration: underline dotted;
}

/* ----------------------------------------------------------------------
   IN-PAGE NAVIGATION (table of contents for long pages)
   ---------------------------------------------------------------------- */

.toc {
  background: var(--surface-bg-alt);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
}

.toc__heading {
  font-family: var(--font-display);
  font-size: var(--font-size-xs);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--text-muted);
  margin-block-end: var(--space-3);
}

.toc__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toc__link {
  display: block;
  padding: 0.5rem 0.625rem;
  text-decoration: none;
  color: var(--text-body);
  font-size: var(--font-size-sm);
  font-weight: var(--weight-medium);
  border-radius: var(--radius-sm);
  border-inline-start: 3px solid transparent;
  transition: background var(--motion-fast), color var(--motion-fast), border-color var(--motion-fast);
}

.toc__link:hover {
  background: var(--card-bg);
  color: var(--text-brand);
  border-inline-start-color: var(--color-navy-400);
}

.toc__link.is-active {
  background: var(--card-bg);
  color: var(--text-brand);
  font-weight: var(--weight-semibold);
  border-inline-start-color: var(--color-red-700);
}

.toc__link--child {
  padding-inline-start: 1.5rem;
  font-size: var(--font-size-xs);
}

/* ----------------------------------------------------------------------
   NAV CTA buttons in the header (donate, volunteer)
   ---------------------------------------------------------------------- */

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
}

@media (max-width: 80em) {
  .nav-cta .btn-text-md { display: none; }
}

@media (max-width: 36em) {
  .site-header__actions .lang-toggle { display: none; }
  .brand__tag { display: none; }
}

/* ----------------------------------------------------------------------
   ON-PAGE BREADCRUMB (re-uses .breadcrumb in components.css)
   ---------------------------------------------------------------------- */

.page-bar {
  background: var(--surface-bg-alt);
  border-block-end: 1px solid var(--surface-border);
  padding-block: var(--space-3);
  font-size: var(--font-size-sm);
}

.page-bar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.page-bar__share {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

/* ----------------------------------------------------------------------
   COMPACT NAV (used on legal pages and 404)
   ---------------------------------------------------------------------- */

.minimal-header {
  padding-block: var(--space-6);
  background: var(--surface-bg);
  border-block-end: 1px solid var(--surface-border);
  text-align: center;
}

.minimal-header .brand {
  justify-content: center;
}