/* =========================================================
   Navigation — sticky header, mega menu, mobile accordion
   ========================================================= */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 800; height: var(--header-h);
  background: rgba(255, 255, 255, .78); backdrop-filter: saturate(1.4) blur(14px); -webkit-backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid rgba(26, 26, 46, .06);
  transition: height .45s var(--ease), background .45s var(--ease), box-shadow .45s var(--ease), transform .45s var(--ease);
}
.site-header.is-scrolled { height: 68px; background: rgba(255, 255, 255, .97); box-shadow: 0 6px 30px -12px rgba(16, 16, 29, .18); }
.nav { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.nav__brand { display: flex; align-items: center; height: 100%; padding-block: 14px; flex: none; }
.nav__brand img { height: 52px; width: auto; object-fit: contain; transition: height .45s var(--ease); }
.site-header.is-scrolled .nav__brand img { height: 42px; }

.nav__menu { display: flex; align-items: center; gap: 4px; height: 100%; }
.nav__item { height: 100%; display: flex; align-items: center; }
.nav__link {
  position: relative; display: inline-flex; align-items: center; gap: 6px; padding: 10px 14px; font-size: 14.5px; font-weight: 500;
  color: var(--navy); border-radius: var(--radius); transition: color .25s;
}
.nav__link::after { content: ""; position: absolute; left: 14px; right: 14px; bottom: 4px; height: 1.5px; background: var(--green); transform: scaleX(0); transform-origin: right; transition: transform .4s var(--ease-out); }
.nav__link:hover::after, .nav__link[aria-current="page"]::after, .nav__item.is-open > .nav__link::after { transform: scaleX(1); transform-origin: left; }
.nav__link svg { width: 10px; height: 10px; transition: transform .35s var(--ease); }
.nav__item.is-open > .nav__link svg { transform: rotate(180deg); }
.nav__actions { display: flex; align-items: center; gap: 12px; }
.nav__cta { padding: 13px 22px; }

/* ---------- Mega menu ---------- */
.mega {
  position: absolute; left: 0; right: 0; top: 100%; background: #fff; border-top: 1px solid var(--line);
  box-shadow: 0 30px 60px -30px rgba(16, 16, 29, .35); max-height: calc(100vh - var(--header-h)); overflow-y: auto;
  opacity: 0; visibility: hidden; transform: translateY(-8px); transition: opacity .35s var(--ease), transform .45s var(--ease-out), visibility 0s .35s;
}
.nav__item.is-open .mega, .no-js .nav__item--mega:focus-within .mega { opacity: 1; visibility: visible; transform: none; transition-delay: 0s; }
.mega__inner { display: grid; grid-template-columns: 1.45fr 1.15fr 1fr 1fr; gap: 0; padding-block: 36px 28px; }
.mega__col { padding: 0 28px; border-left: 1px solid var(--line); display: flex; flex-direction: column; }
.mega__col:first-child { border-left: 0; padding-left: 0; }
.mega__col:last-child { padding-right: 0; }
.mega__logo { height: 60px; width: 100%; max-width: 210px; justify-content: flex-start; padding: 0; margin-bottom: 14px; background: transparent; }
.mega__logo img { object-position: left center; }
.mega__logo--square { height: 72px; max-width: 80px; }
.mega__title { font-family: var(--font-head); font-weight: 600; font-size: 15.5px; color: var(--navy); letter-spacing: -.01em; display: inline-flex; align-items: center; gap: 8px; }
.mega__title:hover { color: var(--blue); }
.mega__desc { font-size: 13.5px; color: var(--muted); line-height: 1.55; margin: 6px 0 14px; }
.mega__items { display: grid; gap: 2px; margin-bottom: 16px; }
.mega__items a { display: block; padding: 9px 12px; margin-inline: -12px; border-radius: var(--radius); transition: background .25s; position: relative; }
.mega__items a:hover, .mega__items a:focus-visible { background: var(--surface); }
.mega__items a:hover .mi-name { color: var(--blue); }
.mi-name { display: block; font-size: 14px; font-weight: 600; color: var(--navy); line-height: 1.35; transition: color .25s; }
.mi-desc { display: block; font-size: 12.5px; color: var(--muted); line-height: 1.45; margin-top: 2px; }
/* Specx Technologies offerings: three equal peer items (same edge, size, weight, padding) */
.mega__peer .mi-head { display: flex; align-items: center; gap: 10px; min-height: 24px; }
.mega__peer img { height: 24px; width: 86px; object-fit: contain; object-position: left center; mix-blend-mode: multiply; flex: none; }
.mega__ext { margin-top: auto; display: inline-flex; align-items: center; gap: 6px; font-family: var(--font-mono); font-size: 12px; letter-spacing: .04em; color: var(--blue); padding-top: 14px; border-top: 1px dashed var(--line); }
.mega__ext svg { width: 12px; height: 12px; transition: transform .3s var(--ease); }
.mega__ext:hover svg { transform: translate(2px, -2px); }
.mega__foot { border-top: 1px solid var(--line); padding-block: 16px; display: flex; justify-content: space-between; align-items: center; gap: 20px; font-size: 13px; color: var(--muted); }
.mega__foot a { color: var(--navy); font-weight: 600; display: inline-flex; gap: 8px; align-items: center; }
.mega__foot a svg { width: 14px; height: 14px; }

/* ---------- Mobile toggle ---------- */
.nav__toggle { display: none; width: 46px; height: 46px; border: 1px solid var(--line); border-radius: var(--radius); position: relative; }
.nav__toggle span { position: absolute; left: 13px; right: 13px; height: 1.5px; background: var(--navy); transition: transform .4s var(--ease), opacity .3s, top .4s var(--ease); }
.nav__toggle span:nth-child(1) { top: 16px; }
.nav__toggle span:nth-child(2) { top: 22px; }
.nav__toggle span:nth-child(3) { top: 28px; }
.nav-open .nav__toggle span:nth-child(1) { top: 22px; transform: rotate(45deg); }
.nav-open .nav__toggle span:nth-child(2) { opacity: 0; }
.nav-open .nav__toggle span:nth-child(3) { top: 22px; transform: rotate(-45deg); }

/* ---------- Mobile drawer ---------- */
.drawer {
  position: fixed; left: 0; right: 0; top: var(--header-h); bottom: 0; z-index: 790; background: #fff; overflow-y: auto; overscroll-behavior: contain;
  padding: 12px var(--gutter) 40px; opacity: 0; visibility: hidden; transform: translateY(-10px); transition: opacity .35s var(--ease), transform .45s var(--ease-out), visibility 0s .35s;
}
.site-header.is-scrolled ~ .drawer { top: 68px; }
.nav-open .drawer { opacity: 1; visibility: visible; transform: none; transition-delay: 0s; }
.drawer__list > li { border-bottom: 1px solid var(--line); }
.drawer__link, .acc__btn { width: 100%; display: flex; justify-content: space-between; align-items: center; padding: 18px 0; font-family: var(--font-head); font-size: 19px; font-weight: 600; color: var(--navy); text-align: left; }
.acc__btn svg { width: 14px; height: 14px; transition: transform .35s var(--ease); flex: none; }
.acc__btn[aria-expanded="true"] svg { transform: rotate(45deg); }
.acc__panel { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .45s var(--ease-out); }
.acc__panel > div { overflow: hidden; }
.acc__btn[aria-expanded="true"] + .acc__panel { grid-template-rows: 1fr; }
.acc--company .acc__btn { font-size: 16px; padding: 16px 0; font-family: var(--font-body); }
.acc--company { border-top: 1px solid var(--line); }
.acc--company .acc__btn img { height: 30px; width: 110px; object-fit: contain; object-position: left center; mix-blend-mode: multiply; }
.acc__label { display: flex; align-items: center; gap: 14px; }
.acc__label em { font-style: normal; font-size: 14.5px; font-weight: 600; }
.drawer__sublist { padding: 0 0 16px 4px; display: grid; gap: 2px; }
.drawer__sublist a { display: block; padding: 10px 12px; border-radius: var(--radius); font-size: 15px; color: var(--steel-600); }
.drawer__sublist a:active, .drawer__sublist a:hover { background: var(--surface); color: var(--navy); }
.drawer__sublist a.is-peer { display: flex; align-items: center; gap: 10px; }
.drawer__sublist a.is-peer img { height: 20px; width: 70px; object-fit: contain; object-position: left; mix-blend-mode: multiply; }
.drawer__sublist a.is-ext { color: var(--blue); font-family: var(--font-mono); font-size: 13px; display: inline-flex; gap: 6px; align-items: center; }
.drawer__sublist a.is-ext svg { width: 12px; height: 12px; }
.drawer__cta { margin-top: 28px; width: 100%; }

@media (max-width: 1180px) {
  .nav__menu, .nav__cta { display: none; }
  .nav__toggle { display: block; }
  .nav__brand img { height: 46px; }
}
@media (min-width: 1181px) { .drawer { display: none; } }
@media (max-width: 1320px) and (min-width: 1181px) { .nav__link { padding-inline: 10px; font-size: 14px; } .nav__link::after { left: 10px; right: 10px; } .mega__col { padding: 0 20px; } }