/**
 * @file
 * Main navigation. Standalone reimplementation of the campsaturna_fluid navbar.
 * Uses Drupal core's default menu markup — no menu--main.html.twig override:
 * camp_preprocess_menu() adds .navbar-nav/.menu--main to the root <ul> and a
 * .home class to the Home item; submenus are the plain nested <ul> core emits.
 *
 * Layout:
 * - Fixed, transparent bar overlaying the page banner.
 * - Turns solid green once scrolled (.affix, toggled by js/camp.js).
 * - Desktop (>=768): centred horizontal nav, the "Home" item renders the logo;
 *   submenus open on hover (and on tap via .open).
 * - Mobile (<768): logo + hamburger; the menu slides in from the right and a
 *   tap on a parent toggles its submenu (.open, js/camp.js).
 * Menus are max one level deep.
 */

.navbar {
  position: fixed;
  top: var(--drupal-displace-offset-top, 0);
  left: 0;
  right: 0;
  z-index: 130;
  margin-bottom: 0;
  background: transparent;
  transition: background-color 200ms ease;
}
.navbar.affix {
  background-color: var(--color-green-muted);
}
.navbar > .container { position: relative; }

.navbar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  z-index: 1;
}
/* Shadow on the full-width bar, not .navbar-header (which is inset by the
   container's 15px padding, so its shadow wouldn't reach the viewport edges). */
.navbar.affix {
  box-shadow: 0 4px 3px -3px var(--color-shadow);
}
/* On the front page, drop-shadow the transparent-bar logo/text for contrast. */
.path-frontpage .navbar:not(.affix) .navbar-header {
  filter: drop-shadow(0 0 2px rgba(0, 0, 0, 0.8));
}

/* Hamburger */
.navbar-toggle {
  box-sizing: content-box;
  width: 22px;
  height: 14px;
  margin-right: var(--space-md);
  padding: 12px 10px;
  border: 0;
  background: none;
  color: var(--color-white);
  cursor: pointer;
}
.navbar-toggle .icon-bar {
  display: block;
  width: 100%;
  height: 2px;
  margin: 3px 0;
  background-color: var(--color-white);
  transition: transform 150ms ease-in-out;
}
.navbar-toggle[aria-expanded="true"] .icon-bar:nth-of-type(2) { transform: translateY(5px) rotate(45deg); }
.navbar-toggle[aria-expanded="true"] .icon-bar:nth-of-type(3) { transform: scaleX(0); }
.navbar-toggle[aria-expanded="true"] .icon-bar:nth-of-type(4) { transform: translateY(-5px) rotate(-45deg); }

/* Menu list resets */
.navbar-nav,
.navbar-nav ul {
  margin: 0;
  padding: 0;
  list-style: none;
}
.navbar-nav a,
.navbar-nav span { text-decoration: none; }
.navbar-nav > li > a,
.navbar-nav > li > span {
  color: var(--color-white);
  text-transform: uppercase;
  cursor: pointer;
}

/* ---------- Desktop (>=768) ---------- */
@media (min-width: 768px) {
  .navbar-header { display: none; }
  .navbar-collapse { display: none !important; }
  .navbar-desktop { display: block; }

  .navbar-nav {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    position: relative;
  }
  .navbar-nav > li { position: static; }

  .navbar-nav > li > a,
  .navbar-nav > li > span {
    display: block;
    padding: 6px 15px;
    font-size: 13px;
  }
  /* Home item shows the logo, centred on its own row until it fits inline. */
  .navbar-nav > li.home {
    flex-basis: 100%;
    order: -1;
  }
  .navbar-nav > li.home .hometext { display: none; }
  .navbar-nav > li.home img { width: 14em; height: auto; }
  .navbar-nav > li.home > a {
    border-bottom: 0;
    text-align: center;
  }

  .path-frontpage .navbar:not(.affix) .navbar-nav > li > a,
  .path-frontpage .navbar:not(.affix) .navbar-nav > li > span {
    filter: drop-shadow(-1px 1px 1px rgba(0, 0, 0, 0.8));
  }

  /* Active / open highlight */
  .navbar-nav > li.menu-item--active-trail > a,
  .navbar-nav > li.open > a,
  .navbar-nav > li.open > span,
  .navbar-nav > li:hover > a,
  .navbar-nav > li:hover > span {
    background-color: var(--color-green-dark);
    color: var(--color-white);
    filter: none;
  }
  .navbar-nav > li.home.menu-item--active-trail > a { background-color: transparent; }

  /* Dropdown panel = core's plain nested <ul>. */
  .navbar-nav > li > ul {
    display: none;
    position: absolute;
    z-index: 500;
    min-width: 200px;
    margin: 0;
    padding: 12px 15px;
    text-align: left;
    background-color: var(--color-green-dark);
    border-top: 1px solid var(--color-green-muted-60);
  }
  .navbar-nav > li:hover > ul,
  .navbar-nav > li.open > ul {
    display: block;
  }
  .navbar-nav > li > ul > li:not(:last-of-type) { margin-bottom: var(--space-sm); }
  .navbar-nav > li > ul > li a,
  .navbar-nav > li > ul > li span {
    color: var(--color-white);
    font-weight: normal;
    white-space: nowrap;
    border-bottom: 0;
  }
  .navbar-nav > li > ul > li a:hover { color: var(--color-green-light); }
}

@media (min-width: 1200px) {
  .navbar-nav { flex-wrap: nowrap; }
  .navbar-nav > li.home { flex-basis: auto; order: 0; }
  .navbar-nav > li.home img { width: 18em; }
}
@media (min-width: 1350px) {
  .navbar-nav > li > a,
  .navbar-nav > li > span { font-size: 15px; }
}

/* ---------- Mobile (<768) ---------- */
@media (max-width: 767px) {
  .navbar-desktop { display: none; }
  .navbar-header .block-camp-branding img {
    padding-top: var(--space-xs);
    width: 200px;
  }

  .navbar-collapse {
    position: absolute;
    top: 100%;
    right: 0;
    width: 300px;
    max-width: 90vw;
    max-height: calc(100vh - 60px);
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform 300ms ease;
    background-color: var(--color-green-dark);
  }
  .navbar-collapse.is-open { transform: translateX(0); }

  .navbar-collapse .navbar-nav { margin-top: 0; }
  .navbar-collapse li { border-top: 1px solid var(--color-green-muted); }
  .navbar-collapse li.home { display: none; }

  .navbar-nav > li > a,
  .navbar-nav > li > span {
    display: block;
    padding: 15px 30px;
  }

  /* Submenus: hidden until the parent is opened (toggled by camp.js). */
  .navbar-nav > li > ul {
    display: none;
    background-color: var(--color-green-dark);
  }
  .navbar-nav > li.open > ul { display: block; }
  .navbar-nav > li > ul > li > a,
  .navbar-nav > li > ul > li > span {
    display: block;
    padding: 15px 5px 15px 45px;
    color: var(--color-white);
    border-bottom: 0;
  }
}

@media (min-width: 1200px) {
  .navbar-nav > li:nth-of-type(2) { order: 0; }
  .navbar-nav > li:nth-of-type(3) { order: 1; }
  .navbar-nav > li:nth-of-type(4) { order: 2; }
  .navbar-nav > li:nth-of-type(1) { order: 3; }
  .navbar-nav > li:nth-of-type(5) { order: 4; }
  .navbar-nav > li:nth-of-type(6) { order: 5; }
  .navbar-nav > li:nth-of-type(7) { order: 6; }
}