/* ============================================================
   Nav v2 — dropdown IA (What's on / Courses / About us / News /
   Support us / Contact + Join & Donate always visible).
   Loaded AFTER styles.css; overrides only nav/header rules.
   Mobile: hamburger opens the full list with groups expanded —
   no hover-only interactions anywhere.
   ============================================================ */

.header-ctas { display: flex; align-items: center; gap: .55rem; flex: none; margin-left: .4rem; }
.header-join, .header-donate { padding: .6rem 1.2rem; }

.site-nav > ul { align-items: center; gap: clamp(.55rem, 1.4vw, 1.35rem); }
.nav-group { position: relative; }

.nav-group-btn {
  display: inline-flex; align-items: center; gap: .3rem;
  background: none; border: 0; cursor: pointer;
  font-family: var(--font-body); font-weight: 600; color: var(--ink); font-size: 1.02rem;
  padding: .45rem .15rem; border-bottom: 3px solid transparent;
  transition: border-color .18s, color .18s;
}
.nav-group-btn:hover { color: var(--red); border-bottom-color: var(--yellow); }
.nav-group.is-current > .nav-group-btn { border-bottom-color: var(--red); color: var(--red); }
.nav-caret { transition: transform .18s; flex: none; }
.nav-group.open > .nav-group-btn .nav-caret { transform: rotate(180deg); }

/* Desktop dropdown panel.
   NB: selectors are prefixed with .site-nav so they OUTRANK styles.css's
   `.site-nav ul { display:flex }`, which also matches these nested uls. */
@media (min-width: 1021px) {
  /* Top-level links and dropdown buttons share one box model so they sit at the
     same height — an inline <a> baseline-aligns ~2px lower than an inline-flex
     <button>, which made the items-with-submenus look higher. */
  .site-nav > ul > li > a,
  .site-nav .nav-group-btn {
    display: inline-flex; align-items: center; line-height: 1.5;
    padding: .45rem .15rem; border-bottom: 3px solid transparent;
  }
  .site-nav .nav-sub {
    display: none; position: absolute; top: 100%; left: -.7rem; z-index: 120;
    min-width: 240px; background: var(--white); border-radius: 14px;
    box-shadow: var(--shadow-lift); border: 1px solid var(--line);
    padding: .55rem; margin: 0;
  }
  /* invisible bridge across the gap between the button and the panel, so the
     pointer never leaves .nav-group while moving down onto a submenu item */
  .site-nav .nav-sub::before {
    content: ""; position: absolute; left: 0; right: 0; top: -14px; height: 14px;
  }
  .site-nav .nav-group.open > .nav-sub { display: block; }
  .nav-sub a {
    display: block; padding: .6rem .85rem; border-radius: 9px;
    border-bottom: 0; font-size: 1rem; min-height: 44px;
    display: flex; align-items: center;
  }
  .nav-sub a:hover { background: var(--cream); color: var(--red); border-bottom: 0; }
}

/* Collapse to hamburger earlier — six items + two buttons need room */
@media (max-width: 1020px) {
  .site-nav {
    position: absolute; top: 100%; left: 0; right: 0;
    background: var(--cream); border-bottom: 1px solid var(--line);
    box-shadow: 0 18px 30px rgba(23, 24, 28, .12);
    display: none; padding: .6rem var(--pad) 1.2rem;
    max-height: calc(100vh - 80px); overflow-y: auto;
  }
  .nav-open .site-nav { display: block; }
  .site-nav > ul { flex-direction: column; gap: 0; align-items: stretch; }
  .site-nav a { display: block; padding: .85rem .2rem; font-size: 1.15rem; border-bottom: 1px solid var(--line); }

  /* groups render expanded: button becomes a static section label */
  .nav-group-btn { width: 100%; padding: .95rem .2rem .35rem; font-size: .85rem; letter-spacing: .13em; text-transform: uppercase; color: var(--ink-soft); cursor: default; border-bottom: 0; }
  .nav-group-btn:hover { color: var(--ink-soft); border-bottom-color: transparent; }
  .nav-caret { display: none; }
  .site-nav .nav-sub { display: block; position: static; flex-direction: column; gap: 0; }
  .nav-sub a { padding-left: .9rem; font-size: 1.08rem; }

  .nav-toggle { display: inline-flex; align-items: center; }
  .header-ctas { margin-left: auto; }
}

@media (max-width: 480px) {
  .header-ctas .btn { padding: .5rem .85rem; font-size: .95rem; }
  .header-donate .ic { display: none; }
  .header-inner { gap: .6rem; }
  .brand img { width: 84px; }
  .site-header.scrolled .brand img { width: 78px; }
}