/* ============================================================
   NORTH HORIZON PARTNERS — navbar.css
   ============================================================ */

#site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-h);
  transition: background 0.3s cubic-bezier(0.4, 0, 0.2, 1),
              border-color 0.3s cubic-bezier(0.4, 0, 0.2, 1),
              box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border-bottom: 1px solid transparent;
}

#site-nav.scrolled {
  background: rgba(10, 10, 10, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-color: var(--border-solid);
  box-shadow: var(--shadow-sm);
}

.nav-inner {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  height: 100%;
}

/* ── Logo ───────────────────────────────────────────────────── */
.logo {
  font-family: var(--font-serif);
  font-size: 1.45rem;
  font-weight: 500;
  letter-spacing: -0.03em;
  color: var(--text);
  margin-right: auto;
  flex-shrink: 0;
}

/* ── Desktop nav links ──────────────────────────────────────── */
.nav-links {
  display: none;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
}

.nav-links a {
  font-size: 0.88rem;
  color: var(--text-muted);
  padding: 0.4rem 0.75rem;
  border-radius: 6px;
  transition: color 0.18s ease, background 0.18s ease;
}

.nav-links a:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
}

.nav-desktop-cta {
  display: none;
  flex-shrink: 0;
}

/* ── Hamburger ──────────────────────────────────────────────── */
.menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  padding: 0.4rem;
  margin-left: auto;
  z-index: 1100;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--text);
  border-radius: 2px;
  transform-origin: center;
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1),
              opacity 0.25s ease;
}

/* Hamburger → X transform */
#site-nav.nav-open .menu-toggle span:first-child {
  transform: translateY(6.5px) rotate(45deg);
}

#site-nav.nav-open .menu-toggle span:last-child {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* ── Mobile full-screen overlay ─────────────────────────────── */
#site-nav.nav-open .nav-links {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 1050;
  padding: 2rem;
}

#site-nav.nav-open .nav-links a {
  font-size: 1.6rem;
  font-family: var(--font-serif);
  padding: 0.5rem 1rem;
}

#site-nav.nav-open .nav-links a:hover {
  color: var(--accent);
  background: none;
}

.nav-mobile-cta-item {
  margin-top: 1rem;
}

/* ── Show desktop elements on larger screens ────────────────── */
@media (min-width: 768px) {
  .menu-toggle       { display: none; }
  .nav-links         { display: flex; }
  .nav-desktop-cta   { display: inline-flex; }
  .nav-mobile-cta-item { display: none; }
}