/* ═══ NAVIGATION ═══ */
nav { position: fixed; top: 0; left: 0; right: 0; z-index: 200; height: 72px; display: flex; align-items: center; background: transparent; border-bottom: 1px solid transparent; transition: transform .4s cubic-bezier(0.4,0,0.2,1); }
nav.hidden { transform: translateY(-100%); }
.nav-wrap { display: flex; align-items: center; justify-content: space-between; width: 100%; }
.nav-logo { display: flex; align-items: center; }
.logo-light, .logo-dark { display: flex; align-items: center; transition: opacity 0.3s; }
.logo-dark { display: none; }
.nav-logo svg { height: 36px; width: auto; }

/* Solid nav (non-hero pages): white bg, dark text, dark logo */
nav.nav-solid { background: #fff; border-bottom: 1px solid var(--border); }
nav.nav-solid .logo-light { display: none; }
nav.nav-solid .logo-dark { display: flex; }
nav.nav-solid .nav-link { color: var(--text); }
nav.nav-solid .nav-link:hover { background: var(--bg); color: var(--azure); }
nav.nav-solid .nav-ham { color: var(--text); }
.nav-menu { display: flex; align-items: center; gap: 4px; list-style: none; }
.nav-menu > li { position: relative; }
.nav-link { color: rgba(255,255,255,0.9); text-decoration: none; font-size: 14px; font-weight: 500; padding: 8px 16px; border-radius: 8px; transition: all .2s; display: inline-flex; align-items: center; gap: 6px; }
.nav-link:hover { background: rgba(255,255,255,0.1); color: #fff; }
.nav-cta { background: var(--azure)!important; color: #fff!important; border-radius: 100px!important; box-shadow: 0 4px 16px rgba(26,175,176,0.25)!important; padding: 10px 24px!important; font-weight: 600!important; margin-left: 8px; }
.nav-cta:hover { background: var(--azure-h)!important; transform: translateY(-1px); }

/* Desktop Submenu Dropdown */
.sub-menu { position: absolute; top: calc(100% + 8px); left: 0; background: #fff; border: 1px solid var(--border); border-radius: var(--r-sm); box-shadow: 0 12px 40px rgba(0,0,0,0.08); padding: 20px; width: 420px; display: grid; grid-template-columns: 1fr 1fr; gap: 24px; opacity: 0; pointer-events: none; transform: translateY(8px); transition: all 0.25s ease; }
.sub-menu::before { content: ''; position: absolute; top: -16px; left: 0; width: 120px; height: 16px; background: transparent; }
.nav-menu > li:hover .sub-menu { opacity: 1; pointer-events: auto; transform: translateY(0); }
.nav-menu > li.sub-open .sub-menu { opacity: 1; pointer-events: auto; transform: translateY(0); }
.sub-col h4 { font-size: 11px; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 12px; padding-left: 12px; }
.sub-col a { display: block; text-decoration: none; color: var(--text); font-size: 14px; padding: 8px 12px; border-radius: 6px; transition: background 0.2s, color 0.2s; }
.sub-col a:hover { background: var(--bg); color: var(--azure); }
.nav-ham { display: none; background: none; border: none; cursor: pointer; color: #fff; padding: 4px; transition: color 0.3s; }

/* ═══ MOBILE OVERLAY ═══ */
.mob-overlay {
  position: fixed;
  top: 72px; left: 0; right: 0;
  z-index: 190;
  background: #fff;
  box-shadow: 0 8px 32px rgba(0,0,0,0.12);
  opacity: 0; pointer-events: none;
  transform: translateY(-8px);
  transition: opacity 0.25s ease, transform 0.25s ease;
  overflow: hidden;
}
.mob-overlay.active {
  opacity: 1; pointer-events: all;
  transform: translateY(0);
}
.mob-inner { padding: 8px 0 16px; }
.mob-link-wrap { border-bottom: 1px solid var(--border); }
.mob-link-wrap:last-of-type { border-bottom: none; }
.mob-link {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 20px;
  text-decoration: none; color: var(--text);
  font-size: 16px; font-weight: 600;
  cursor: pointer; transition: color 0.2s;
}
.mob-link:hover, .mob-link:active { color: var(--azure); }
.mob-link svg { color: var(--muted); transition: transform 0.25s; }
.mob-link.open svg { transform: rotate(180deg); }
.mob-sub-menu {
  display: none; flex-direction: row;
  padding: 4px 20px 14px;
  gap: 20px;
  background: var(--bg);
}
.mob-sub-menu.open { display: flex; }
.mob-sub-menu > div { flex: 1; }
.mob-sub-menu h4 {
  font-size: 9px; letter-spacing: 1.8px; text-transform: uppercase;
  color: var(--muted); margin-bottom: 8px; font-weight: 600;
}
.mob-sub-menu a {
  display: block; text-decoration: none;
  color: var(--text); font-size: 14px;
  padding: 5px 0; transition: color 0.2s;
  border-bottom: none;
}
.mob-sub-menu a:hover { color: var(--azure); }
.mob-cta-wrap { padding: 16px 20px 4px; }
.mob-cta-wrap .btn {
  width: 100%; justify-content: center;
  border-radius: 12px; padding: 14px;
  font-size: 14px; font-weight: 700;
}

/* ═══ RESPONSIVE ═══ */
@media (max-width: 1024px) {
  .sub-menu { left: auto; right: 0; width: 380px; }
}

@media (max-width: 820px) {
  .nav-logo svg { height: 32px; }
}

@media (max-width: 768px) {
  nav { height: 64px; }
  .mob-overlay { top: 64px; }
  .nav-logo svg { height: 30px; }
  .nav-menu { gap: 0; }
  .nav-link { padding: 8px 10px; font-size: 13px; }
  .nav-cta { padding: 9px 18px!important; font-size: 13px!important; }
  .sub-menu { width: 340px; padding: 16px; gap: 16px; }
  .sub-col a { font-size: 13px; padding: 6px 10px; }
}

@media (min-width: 561px) {
  .mob-overlay { display: none !important; }
}

@media (max-width: 560px) {
  .nav-menu { display: none; }
  .nav-ham { display: block; order: 3; }
  .nav-wrap {
    display: grid;
    grid-template-columns: 40px 1fr 40px;
    align-items: center;
  }
  .nav-wrap::before {
    content: '';
    width: 40px;
  }
  .nav-logo { justify-self: center; order: 2; }
  .nav-logo svg { height: 30px; }
  .nav-ham { justify-self: end; }
}