/* ==================================================================
   Header, primary navigation & mega menu
   ================================================================== */

.topbar {
  background: var(--navy-900);
  color: rgba(255,255,255,.8);
  font-size: var(--fs-sm);
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.topbar .container { display: flex; align-items: center; justify-content: space-between; min-height: 42px; }
.topbar a { color: rgba(255,255,255,.8); }
.topbar a:hover { color: var(--cyan-300); }
.topbar__contact { display: flex; gap: var(--sp-5); align-items: center; }
.topbar__contact span { display: inline-flex; align-items: center; gap: 6px; }
.topbar__contact svg { width: 15px; height: 15px; opacity: .7; }
.topbar__social { display: flex; gap: var(--sp-4); align-items: center; }
.topbar__social svg { width: 16px; height: 16px; }

.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.97);
  backdrop-filter: saturate(140%) blur(6px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition);
}
.site-header.is-stuck { box-shadow: var(--shadow); }
.navbar { display: flex; align-items: center; justify-content: space-between; min-height: var(--header-h); gap: var(--sp-5); }
.navbar__brand { display: flex; align-items: center; flex: 0 0 auto; }
.navbar__brand img { height: 44px; width: auto; }

.nav-menu { display: flex; align-items: center; gap: 2px; list-style: none; margin: 0; padding: 0; }
.nav-menu > li { position: relative; }
.nav-menu > li > a {
  display: flex; align-items: center; gap: 5px;
  padding: 0.9rem 1rem; font-weight: 600; font-size: var(--fs-sm);
  color: var(--navy-800); border-radius: var(--radius-sm);
}
.nav-menu > li > a:hover,
.nav-menu > li > a.is-active { color: var(--cyan-500); background: var(--grey-50); }
.nav-menu > li > a .chev { width: 14px; height: 14px; transition: transform var(--transition); }
.nav-menu > li:hover > a .chev { transform: rotate(180deg); }

.navbar__actions { display: flex; align-items: center; gap: var(--sp-3); flex: 0 0 auto; }

/* Mega menu */
.mega {
  position: absolute; top: calc(100% + 6px); left: 50%; transform: translateX(-50%) translateY(8px);
  width: min(880px, 92vw);
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--sp-6);
  opacity: 0; visibility: hidden; pointer-events: none;
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
  z-index: 120;
}
.nav-menu > li:hover .mega,
.nav-menu > li:focus-within .mega { opacity: 1; visibility: visible; pointer-events: auto; transform: translateX(-50%) translateY(0); }
.mega__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-4) var(--sp-6); }
.mega__col h5 { font-size: var(--fs-xs); text-transform: uppercase; letter-spacing: .1em; color: var(--grey-400); margin-bottom: var(--sp-3); }
.mega__link { display: flex; align-items: flex-start; gap: var(--sp-3); padding: var(--sp-3); border-radius: var(--radius-sm); transition: background var(--transition); }
.mega__link:hover { background: var(--grey-50); }
.mega__link svg { width: 22px; height: 22px; color: var(--steel-600); flex: 0 0 auto; margin-top: 2px; }
.mega__link strong { display: block; color: var(--navy-800); font-size: var(--fs-sm); }
.mega__link span { font-size: var(--fs-xs); color: var(--text-muted); }
.mega__cta { grid-column: 1 / -1; margin-top: var(--sp-4); padding-top: var(--sp-4); border-top: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; }

/* Ad carousel — fills the mega-menu column, auto-slides, swipeable */
.ad-carousel { position: relative; height: 100%; min-height: 200px; border-radius: var(--radius); overflow: hidden; }
.ad-carousel__track { display: flex; height: 100%; transition: transform .5s cubic-bezier(.4,0,.2,1); }
.ad-slide {
  position: relative; flex: 0 0 100%; min-height: 200px;
  display: flex; align-items: flex-end; overflow: hidden;
  background-size: cover; background-position: center; color: #fff; text-decoration: none;
}
.ad-slide__tint { position: absolute; inset: 0; z-index: 0; }
.ad-slide::after {   /* bottom scrim so text is always legible */
  content: ""; position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(to top, rgba(0,0,0,.8) 0%, rgba(0,0,0,.15) 55%, transparent 100%);
}
.ad-slide__text { position: relative; z-index: 2; padding: var(--sp-4) var(--sp-4) calc(var(--sp-4) + 6px); }
.ad-slide__text strong { display: block; font-size: var(--fs-base); line-height: 1.25; }
.ad-slide__text span { display: block; font-size: var(--fs-sm); color: rgba(255,255,255,.88); margin-top: 3px; }
.ad-slide:hover .ad-slide__text { transform: translateY(-2px); transition: transform var(--transition); }
.ad-carousel__dots { position: absolute; z-index: 3; bottom: 10px; right: 12px; display: flex; gap: 5px; }
.ad-dot { width: 7px; height: 7px; border-radius: 999px; border: 0; padding: 0; cursor: pointer; background: rgba(255,255,255,.45); transition: all var(--transition); }
.ad-dot.is-active { background: #fff; width: 18px; }

/* Mobile toggle */
.nav-toggle { display: none; width: 46px; height: 46px; border: 1px solid var(--border); border-radius: var(--radius-sm); background: #fff; align-items: center; justify-content: center; }
.nav-toggle svg { width: 24px; height: 24px; color: var(--navy-800); }

/* Mobile drawer */
.nav-backdrop { position: fixed; inset: 0; background: rgba(10,26,47,.5); opacity: 0; visibility: hidden; transition: opacity var(--transition); z-index: 200; }
.nav-backdrop.is-open { opacity: 1; visibility: visible; }
.mobile-nav {
  position: fixed; top: 0; right: 0; height: 100dvh; width: min(360px, 88vw);
  background: #fff; z-index: 210; transform: translateX(100%);
  transition: transform var(--transition); overflow-y: auto;
  box-shadow: var(--shadow-lg);
}
.mobile-nav.is-open { transform: translateX(0); }
.mobile-nav__head { display: flex; align-items: center; justify-content: space-between; padding: var(--sp-4) var(--sp-5); border-bottom: 1px solid var(--border); }
.mobile-nav__head img { height: 36px; }
.mobile-nav__close { width: 42px; height: 42px; border: 0; background: var(--grey-100); border-radius: var(--radius-sm); display: grid; place-items: center; }
.mobile-nav ul { list-style: none; padding: 0; margin: 0; }
.mobile-nav > ul > li { border-bottom: 1px solid var(--grey-100); }
.mobile-nav a { display: block; padding: var(--sp-4) var(--sp-5); color: var(--navy-800); font-weight: 600; }
.mobile-nav .submenu a { padding-left: var(--sp-7); font-weight: 500; font-size: var(--fs-sm); color: var(--grey-600); }
.mobile-nav__foot { padding: var(--sp-5); display: grid; gap: var(--sp-3); }
/* `.mobile-nav a` forces display:block, which stacks a button's icon above its
   label — restore the button's inline row layout for the drawer footer. */
.mobile-nav__foot .btn {
  display: flex; align-items: center; justify-content: center;
  gap: var(--sp-2); padding: 0.8rem 1.5rem;
}
.mobile-nav__foot .btn svg { flex: 0 0 auto; }
.mobile-accordion-toggle { display: flex; justify-content: space-between; align-items: center; width: 100%; background: none; border: 0; padding: var(--sp-4) var(--sp-5); font-weight: 600; color: var(--navy-800); }
.mobile-accordion-toggle svg { width: 18px; height: 18px; transition: transform var(--transition); }
.mobile-accordion.is-open .mobile-accordion-toggle svg { transform: rotate(180deg); }
.mobile-accordion .submenu { display: none; background: var(--grey-50); }
.mobile-accordion.is-open .submenu { display: block; }