/* ============================================================
   DESERT SAGE DRAFTING — Navigation Styles
   ============================================================ */

/* ── Nav Shell ── */
#site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(250, 248, 244, 0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

#site-nav.scrolled {
  border-color: var(--border);
  box-shadow: 0 2px 24px rgba(0,0,0,0.06);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 2rem;
}

/* ── Logo ── */
.nav-logo img {
  height: 48px;
  width: auto;
  display: block;
  transition: opacity var(--trans);
}
.nav-logo:hover img { opacity: 0.8; }

/* ── Primary Links ── */
.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-links > li { position: relative; }

.nav-links > li > a {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.5rem 0.85rem;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--charcoal-mid);
  border-radius: var(--radius);
  transition: color var(--trans), background var(--trans);
}

.nav-links > li > a:hover,
.nav-links > li > a.active {
  color: var(--sage-dark);
  background: var(--sage-mist);
}

.nav-links > li > a .chevron {
  width: 10px;
  height: 10px;
  transition: transform var(--trans);
}
.nav-links > li:hover > a .chevron { transform: rotate(180deg); }

/* ── Dropdown ── */
.nav-dropdown {
  position: absolute;
  top: calc(100% + 0.5rem);
  left: 50%;
  transform: translateX(-50%);
  min-width: 220px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: 0 12px 40px rgba(0,0,0,0.12);
  padding: 0.5rem;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  transform: translateX(-50%) translateY(-6px);
}

/* Invisible "bridge" that fills the gap between the trigger and the menu,
   so moving the mouse down to the items doesn't drop the hover. */
.nav-dropdown::before {
  content: '';
  position: absolute;
  top: -0.6rem;
  left: 0;
  right: 0;
  height: 0.6rem;
  background: transparent;
}

.nav-links > li:hover .nav-dropdown {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

/* Two-column dropdown for Services */
.nav-dropdown.wide {
  min-width: 440px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}
.nav-dropdown.wide .dropdown-col { padding: 0.5rem; }
.nav-dropdown.wide .dropdown-col-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--charcoal-light);
  padding: 0.5rem 0.75rem 0.25rem;
}

.nav-dropdown a {
  display: block;
  padding: 0.6rem 0.85rem;
  font-size: 0.88rem;
  color: var(--charcoal-mid);
  border-radius: var(--radius);
  transition: background var(--trans), color var(--trans);
  white-space: nowrap;
}
.nav-dropdown a:hover {
  background: var(--sage-mist);
  color: var(--sage-dark);
}

/* ── Nav Right (CTA + Portal) ── */
.nav-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-portal-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--sage-dark);
  border: 1.5px solid var(--sage-light);
  border-radius: var(--radius);
  transition: var(--trans);
}
.nav-portal-btn:hover {
  background: var(--sage);
  color: var(--white);
  border-color: var(--sage);
}
.nav-portal-btn svg { width: 14px; height: 14px; }

/* ── Mobile Toggle ── */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  padding: 6px;
  border-radius: var(--radius);
  transition: background var(--trans);
}
.nav-hamburger:hover { background: var(--sage-mist); }
.nav-hamburger span {
  display: block;
  height: 2px;
  background: var(--charcoal);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Mobile Drawer ── */
.nav-mobile {
  display: none;
  position: fixed;
  top: 76px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--cream);
  z-index: 999;
  overflow-y: auto;
  padding: 1.5rem 1.25rem 3rem;
  transform: translateX(100%);
  transition: transform 0.35s var(--ease);
}
.nav-mobile.open { transform: translateX(0); }

.mobile-link {
  display: block;
  padding: 0.85rem 0;
  font-size: 1rem;
  font-weight: 500;
  color: var(--charcoal);
  border-bottom: 1px solid var(--border);
  letter-spacing: 0.04em;
}
.mobile-link:last-child { border-bottom: none; }

.mobile-group-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--charcoal-light);
  padding: 1.2rem 0 0.4rem;
}
.mobile-sub-link {
  display: block;
  padding: 0.6rem 0 0.6rem 1rem;
  font-size: 0.9rem;
  color: var(--charcoal-mid);
  border-bottom: 1px solid var(--border);
}
.mobile-cta-group {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 2rem;
}
.mobile-cta-group .btn { justify-content: center; }

/* ── Nav Spacer (pushes content below fixed nav) ── */
.nav-spacer { height: 76px; }

/* ── Responsive ── */
@media (max-width: 1024px) {
  .nav-links, .nav-right .btn { display: none; }
  .nav-hamburger { display: flex; }
  .nav-mobile { display: block; }
}

@media (max-width: 480px) {
  .nav-inner { padding: 0 1.25rem; }
  .nav-logo img { height: 40px; }
}