/* Offset anchor scroll targets so sticky navbar doesn't cover them */
html {
  scroll-padding-top: 80px;
}

@media (min-width: 768px) {
  html {
    scroll-padding-top: 140px;
  }
}

.site-wrapper {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ── Sticky wrapper (header + nav together) ── */
.sticky-header-wrap {
  position: sticky;
  top: 0;
  z-index: 100;
}

/* ── Header ── */
.site-header {
  background-color: var(--color-primary);
  padding: var(--spacing-md) 0;
  display: flex;
  align-items: center;
  justify-content: center;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 1350px;
  padding: 0 var(--spacing-lg);
}

/* When inside sticky wrapper, the wrapper handles stickiness */
.sticky-header-wrap .site-header {
  position: static;
  z-index: auto;
  box-shadow: none;
}

.sticky-header-wrap .site-nav {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  color: #fff;
  font-size: 1.125rem;
  font-weight: 700;
  text-decoration: none;
  line-height: 1.2;
}

.site-logo:hover {
  color: var(--color-accent);
  text-decoration: none;
}

.logo-emblem {
  width: 36px;
  height: 36px;
  object-fit: contain;
  flex-shrink: 0;
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.site-logo .logo-sub {
  display: block;
  font-size: 0.7rem;
  font-weight: 400;
  opacity: 0.8;
  letter-spacing: 0.02em;
}

/* ── Mobile nav toggle ── */
.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
  min-width: 44px;
  min-height: 44px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: #fff;
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ── Site Nav ── */
.site-nav {
  background-color: var(--color-primary-light);
  display: none;
}

.site-nav.is-open {
  display: block;
}

.site-nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.site-nav a {
  display: block;
  padding: var(--spacing-md) var(--spacing-lg);
  color: #fff;
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  transition: background-color 0.15s;
}

.site-nav a:hover {
  background-color: rgba(255, 255, 255, 0.12);
  color: #fff;
  text-decoration: none;
}

.site-nav button {
  background: none;
  border: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding: var(--spacing-md) var(--spacing-lg);
  color: #fff;
  font-size: inherit;
  font-weight: inherit;
  font-family: inherit;
  cursor: pointer;
  display: block;
  width: 100%;
  text-align: left;
  transition: background-color 0.15s;
}

.site-nav button:hover {
  background-color: rgba(255, 255, 255, 0.12);
}

.site-nav a[aria-current="page"] {
  background-color: rgba(255, 255, 255, 0.18);
  font-weight: 600;
  border-left: 3px solid var(--color-accent);
}

/* Desktop nav */
@media (min-width: 768px) {
  .nav-toggle {
    display: none;
  }

  .site-nav {
    display: block;
  }

  .site-nav ul {
    display: flex;
    max-width: 1350px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
  }

  .site-nav li {
    flex: 1;
    display: flex;
  }

  .site-nav a {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    border-bottom: none;
    font-size: 0.9375rem;
    font-weight: 600;
    border-left: none;
    border-bottom: 3px solid transparent;
  }

  .site-nav a[aria-current="page"] {
    border-left: none;
    border-bottom: 4px solid var(--color-accent);
    background-color: rgba(255, 255, 255, 0.12);
  }

  .site-nav a:hover {
    background-color: rgba(255, 255, 255, 0.2);
  }

  .site-nav button {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    border-bottom: 3px solid transparent;
    font-size: 0.9375rem;
    font-weight: 600;
    width: auto;
  }

  .site-nav button:hover {
    background-color: rgba(255, 255, 255, 0.2);
  }

  .site-nav button[aria-current="true"] {
    border-bottom: 4px solid var(--color-accent);
    background-color: rgba(255, 255, 255, 0.12);
  }
}

/* ── Nav submenu (pure CSS hover dropdown) ── */
.nav-arrow {
  font-size: 0.65em;
  margin-left: 0.2em;
  display: inline-block;
  transition: transform 0.2s ease;
  vertical-align: middle;
}

/* Mobile-first: submenu always visible as indented items when nav is open */
.site-nav .nav-submenu {
  list-style: none;
  padding: 0;
  margin: 0;
  background-color: rgba(0, 0, 0, 0.18);
}

.site-nav .nav-submenu li {
  margin-bottom: 0;
}

.site-nav .nav-submenu a {
  padding-left: 2.5rem;
  font-size: 0.875rem;
  font-weight: 400;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

/* Mobile: submenu collapsed by default, expanded via JS is-open */
@media (max-width: 767px) {
  .site-nav .nav-submenu {
    display: none;
  }

  .site-nav li.has-submenu.is-open > .nav-submenu {
    display: block;
  }

  .site-nav li.has-submenu.is-open > button .nav-arrow {
    transform: rotate(180deg);
  }
}

@media (min-width: 768px) {
  .site-nav li.has-submenu {
    position: relative;
  }

  /* Hidden by default on desktop; shown on hover / keyboard focus */
  .site-nav .nav-submenu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--color-primary);
    z-index: 200;
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
    border-top: 2px solid var(--color-accent);
  }

  .site-nav li.has-submenu:hover > .nav-submenu,
  .site-nav li.has-submenu:focus-within > .nav-submenu {
    display: block;
  }

  .site-nav li.has-submenu:hover .nav-arrow,
  .site-nav li.has-submenu:focus-within .nav-arrow {
    transform: rotate(180deg);
  }

  /* Override desktop .site-nav a flex rules for submenu links */
  .site-nav .nav-submenu a {
    display: block;
    text-align: left;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.875rem;
    font-weight: 500;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    border-left: none;
  }

  .site-nav .nav-submenu a:hover {
    background-color: rgba(255, 255, 255, 0.15);
  }

  /* Reset desktop active-page border-bottom for submenu current item */
  .site-nav .nav-submenu a[aria-current="page"] {
    background-color: rgba(255, 255, 255, 0.18);
    font-weight: 600;
    border-left: 3px solid var(--color-accent);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }
}

/* ── Main ── */
main {
  flex: 1;
  padding: var(--spacing-xl) var(--spacing-lg);
  max-width: 1350px;
  margin: 0 auto;
  width: 100%;
}

/* ── Footer ── */
.site-footer {
  background-color: var(--color-primary);
  color: rgba(255, 255, 255, 0.8);
  padding: var(--spacing-xl) var(--spacing-lg);
  margin-top: auto;
}

.site-footer .footer-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.site-footer a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--color-accent);
  text-decoration: underline;
}

.footer-desc {
  font-size: 0.9rem;
  margin-bottom: var(--spacing-md);
}

.footer-nav {
  margin-bottom: var(--spacing-md);
}

.footer-nav ul {
  list-style: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm) var(--spacing-lg);
}

.footer-nav li {
  margin-bottom: 0;
}

.footer-copyright {
  margin-top: var(--spacing-lg);
  font-size: 0.8125rem;
  opacity: 0.6;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: var(--spacing-md);
}