/* =========================================================
   ICIURP 2027 — Site header & navigation
   Solid, accessible, responsive. Replaces the legacy template's
   transparent-over-hero header pattern (which had no reliable
   background behind it) and the broken meanmenu mobile plugin.
   ========================================================= */

:root {
  --brand-green: #14162e;
  --brand-green-dark: #0c0d1e;
  --brand-orange: #e25a26;
  --brand-orange-dark: #c94916;
  --nav-text: #14162e;
  --nav-text-muted: #5c5f77;
  --nav-border: #ececf3;
  --nav-shadow: 0 12px 28px rgba(20, 22, 46, 0.12);
  --header-height: 84px;
}

@media (max-width: 1199.98px) {
  :root {
    --header-height: 68px;
  }
}

* { box-sizing: border-box; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: #ffffff;
  border-bottom: 1px solid var(--nav-border);
  box-shadow: 0 2px 10px rgba(20, 40, 25, 0.05);
}

.site-header.is-scrolled {
  box-shadow: var(--nav-shadow);
}

.site-header__bar {
  max-width: 1380px;
  margin: 0 auto;
  padding: 0 20px;
  height: var(--header-height);
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Logo */
.site-header__logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  margin-right: 8px;
}

.site-header__logo img {
  height: 42px;
  width: auto;
  display: block;
}

@media (max-width: 1199.98px) {
  .site-header__logo img { height: 42px; }
}

/* Primary nav (desktop) */
.site-nav {
  flex: 1;
  min-width: 0;
}

.site-nav__list {
  display: flex;
  align-items: stretch;
  list-style: none;
  margin: 0;
  padding: 0;
  flex-wrap: nowrap;
  justify-content: flex-end;
}

.site-nav__item {
  position: relative;
  display: flex;
  align-items: center;
}

.site-nav__item > a {
  display: flex;
  align-items: center;
  gap: 4px;
  height: var(--header-height);
  padding: 0 9px;
  color: var(--nav-text);
  font-weight: 600;
  font-size: 13.5px;
  text-decoration: none;
  white-space: nowrap;
  border-bottom: 3px solid transparent;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.site-nav__item.has-dropdown > a::after {
  content: "";
  width: 6px;
  height: 6px;
  margin-top: -4px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  opacity: 0.6;
  transform: rotate(45deg);
}

/* Mobile accordion toggle caret */
.caret {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg);
  transition: transform 0.18s ease;
}

.site-nav__item:hover > a,
.site-nav__item:focus-within > a,
.site-nav__item.is-active > a {
  color: var(--brand-orange);
}

.site-nav__item.is-active > a {
  border-bottom-color: var(--brand-orange);
}

.submenu-toggle { display: none; }

/* Dropdown menus (desktop: hover / keyboard focus) */
.site-nav__dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 260px;
  margin: 0;
  padding: 8px;
  list-style: none;
  background: #ffffff;
  border-top: 3px solid var(--brand-green);
  border-radius: 0 0 10px 10px;
  box-shadow: var(--nav-shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s;
  z-index: 10;
}

.site-nav__item:hover > .site-nav__dropdown,
.site-nav__item:focus-within > .site-nav__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.site-nav__dropdown li a {
  display: block;
  padding: 10px 14px;
  border-radius: 6px;
  color: var(--nav-text-muted);
  font-weight: 500;
  font-size: 14px;
  text-decoration: none;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.site-nav__dropdown li a:hover {
  background: #fdf1ea;
  color: var(--brand-orange-dark);
}

/* Actions: search + sign in */
.site-header__actions {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
  margin-left: 4px;
}

.icon-btn {
  display: flex;
  align-items: center;
  gap: 7px;
  height: 38px;
  padding: 0 10px;
  border-radius: 8px;
  color: var(--brand-green);
  text-decoration: none;
  font-weight: 600;
  font-size: 13.5px;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.icon-btn:hover {
  background: #fdf1ea;
  color: var(--brand-orange-dark);
}

.icon-btn--text {
  background: var(--brand-green);
  color: #fff;
}

.icon-btn--text:hover {
  background: var(--brand-orange);
  color: #fff;
}

.icon-btn--text span { display: inline; }

/* Hamburger toggle (mobile) */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  margin-left: auto;
  border: none;
  background: transparent;
  cursor: pointer;
  flex-shrink: 0;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--brand-green);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s 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__item--mobile-only { display: none; }

/* =========================================================
   Responsive: below 992px, collapse into a slide-down panel
   ========================================================= */
@media (max-width: 1199.98px) {
  .site-header__bar {
    padding: 0 16px;
    gap: 12px;
  }

  .nav-toggle { display: flex; }

  .site-header__actions .icon-btn--text span { display: none; }
  .site-header__actions .icon-btn--text { width: 40px; justify-content: center; padding: 0; }

  .site-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: #ffffff;
    overflow-y: auto;
    max-height: calc(100vh - var(--header-height));
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
    border-top: 1px solid var(--nav-border);
    box-shadow: 0 16px 24px rgba(20, 40, 25, 0.1);
  }

  .site-nav.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
  }

  .site-nav__list {
    flex-direction: column;
    padding: 8px 0 24px;
  }

  .site-nav__item {
    display: block;
    position: relative;
  }

  .site-nav__item > a {
    height: auto;
    padding: 14px 24px;
    border-bottom: none;
    border-left: 3px solid transparent;
  }

  .site-nav__item.is-active > a {
    border-bottom-color: transparent;
    border-left-color: var(--brand-orange);
    background: #fdf1ea;
  }

  .site-nav__item.has-dropdown > a::after { display: none; }

  .site-nav__item--mobile-only { display: block; }

  .submenu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    right: 8px;
    top: 6px;
    width: 40px;
    height: 40px;
    border: none;
    background: transparent;
    color: var(--nav-text-muted);
    cursor: pointer;
  }

  .submenu-toggle[aria-expanded="true"] .caret { transform: rotate(225deg); }

  .site-nav__dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border-top: none;
    border-radius: 0;
    background: #f7faf7;
    display: none;
    padding: 4px 8px 8px 24px;
  }

  .site-nav__item.dropdown-open > .site-nav__dropdown {
    display: block;
  }
}