/* ══════════════════════════════════════════════
   nav.css  —  Navigation (sticky, glass, mobile)
   ══════════════════════════════════════════════ */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: background var(--t-base), box-shadow var(--t-base), padding var(--t-base);
  /* starts transparent over hero */
  background: transparent;
  padding: .5rem 0;
}

/* scrolled state — added via JS */
.nav.scrolled {
  background: rgba(255,255,255,.9);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: 0 1px 0 rgba(0,0,0,.08);
  padding: .25rem 0;
}

/* edition pages: always opaque */
.nav.opaque {
  background: var(--white);
  box-shadow: 0 1px 0 var(--gray-200);
  padding: .25rem 0;
}

.nav-inner {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--px);
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

/* ── Logo ── */
.nav-logo { flex-shrink: 0; }

.nav-logo-box {
  background: var(--white);
  border-radius: var(--r-lg);
  padding: .5rem .9rem;
  box-shadow: var(--shadow-md);
  transition: box-shadow var(--t-base);
}
.nav-logo-box:hover { box-shadow: var(--shadow-lg); }

.nav-logo-img {
  height: 72px;
  width: auto;
  transition: height var(--t-base);
}
.nav.scrolled .nav-logo-img { height: 58px; }

/* ── Desktop links ── */
.nav-links {
  display: flex;
  align-items: center;
  gap: .25rem;
  margin-left: auto;
  list-style: none;
}

.nav-link {
  font-size: .85rem;
  font-weight: 500;
  color: rgba(255,255,255,.75);
  padding: .4rem .65rem;
  border-radius: var(--r-sm);
  transition: color var(--t-fast), background var(--t-fast);
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  white-space: nowrap;
}
.nav-link:hover { color: var(--white); background: rgba(255,255,255,.08); }

.nav.scrolled .nav-link,
.nav.opaque  .nav-link { color: var(--gray-700); }
.nav.scrolled .nav-link:hover,
.nav.opaque  .nav-link:hover { color: var(--blue); background: var(--gray-50); }

/* ── Dropdown ── */
.nav-dropdown { position: relative; }

.nav-drop-btn { display: flex; align-items: center; gap: .3rem; }
.caret { font-size: .7rem; transition: transform var(--t-fast); }
.nav-dropdown:hover .caret,
.nav-dropdown.open   .caret { transform: rotate(180deg); }

.nav-dropdown::before {
  content: '';
  position: absolute;
  top: 100%;
  left: -1rem;
  right: -1rem;
  height: .75rem;
}
.nav-drop-menu {
  position: absolute;
  top: calc(100% + .5rem);
  right: 0;
  min-width: 170px;
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-6px);
  transition: opacity var(--t-base), transform var(--t-base);
  list-style: none;
}
.nav-dropdown:hover .nav-drop-menu,
.nav-dropdown.open  .nav-drop-menu {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
}
.nav-drop-menu a {
  display: block;
  padding: .7rem 1.1rem;
  font-size: .85rem;
  color: var(--gray-700);
  font-weight: 500;
  transition: background var(--t-fast), color var(--t-fast);
}
.nav-drop-menu a:hover { background: var(--gray-50); color: var(--blue); }

/* ── CTA / back button ── */
.nav-cta  { margin-left: .75rem; }
.nav-back { margin-left: auto; }

/* ── Home-only elements (hidden on edition pages) ── */
[data-page="home"] ~ * .home-only,
body.on-edition .home-only { display: none !important; }

/* ── Burger ── */
.nav-burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 38px;
  height: 38px;
  padding: 6px;
  margin-left: auto;
  border-radius: var(--r-sm);
  background: none;
  border: none;
  cursor: pointer;
}
.nav-burger span {
  display: block;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: background var(--t-fast);
}
.nav.scrolled .nav-burger span,
.nav.opaque   .nav-burger span { background: var(--navy); }

/* ── Mobile menu ── */
.nav-mobile {
  background: var(--white);
  border-top: 1px solid var(--gray-100);
  padding: 1rem var(--px) 1.5rem;
  box-shadow: var(--shadow-lg);
  display: flex !important; /* override [hidden] when open via .open class */
  flex-direction: column;
  gap: .25rem;
}
.nav-mobile[hidden] { display: none !important; }

.nav-mobile-link {
  display: block;
  padding: .75rem 1rem;
  font-size: .9rem;
  font-weight: 500;
  color: var(--gray-700);
  border-radius: var(--r-sm);
  transition: background var(--t-fast), color var(--t-fast);
}
.nav-mobile-link:hover { background: var(--gray-50); color: var(--blue); }

.nav-mobile-divider {
  height: 1px;
  background: var(--gray-100);
  margin: .5rem 0;
}

.nav-mobile-cta {
  margin-top: .75rem;
  justify-content: center;
}
.nav-mobile-back {
  margin-top: .5rem;
  justify-content: center;
  color: var(--navy);
  border-color: var(--gray-200);
}

/* ── Responsive ── */
@media (max-width: 900px) {
  .nav-links,
  .nav-cta,
  .nav-back { display: none !important; }
  .nav-burger { display: flex; }
}
@media (min-width: 901px) {
  .nav-burger { display: none; }
  .nav-mobile { display: none !important; }
}