/* ============================================================
   NAVIGATION
   ============================================================ */

.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-height);
  background: var(--color-bg);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.site-nav.scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.nav-inner {
  display: flex;
  align-items: center;
  height: 100%;
  gap: var(--space-8);
}

/* ── Logo ── */
.nav-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  text-decoration: none;
}

.nav-logo img {
  height: 52px;
  min-height: 44px;
  width: auto;
}

/* ── Primary links ── */
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  margin-left: auto;
}

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

.nav-links > li > a:not(.btn) {
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text);
  padding: var(--space-2) 0;
  border-bottom: 2px solid transparent;
  transition: color var(--transition), border-color var(--transition);
}

.nav-links > li > a:not(.btn):hover,
.nav-links > li > a:not(.btn).active {
  color: var(--color-primary);
  border-bottom-color: var(--color-accent);
}

/* ── CTAs ── */
.nav-ctas {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

/* ── Mobile CTAs (inside nav-links list — desktop: hidden) ── */
.mobile-nav-cta {
  display: none;
}

/* ── Hamburger ── */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
  margin-left: auto;
  border-radius: var(--radius);
  transition: background var(--transition);
}

.nav-toggle:hover {
  background: var(--color-bg-subtle);
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ── Mobile ── */
@media (max-width: 900px) {
  .nav-ctas .btn-outline {
    display: none;
  }
}

@media (max-width: 767px) {
  .nav-toggle {
    display: flex;
  }

  .nav-ctas {
    display: none;
  }

  .nav-links {
    display: none;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-bg);
    border-top: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: var(--space-4) 0 0;
    margin: 0;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links > li > a:not(.btn) {
    display: block;
    padding: var(--space-3) var(--space-6);
    border-bottom: none;
    font-size: var(--text-base);
  }

  .nav-links > li > a:not(.btn):hover {
    background: var(--color-bg-subtle);
    border-bottom: none;
  }

  /* Mobile CTA — pinned to bottom of full-screen menu */
  .mobile-nav-cta {
    display: flex !important;
    flex-direction: column;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-6) var(--space-6);
    border-top: 1px solid var(--color-border);
    margin-top: auto;
  }

  .mobile-nav-cta .btn {
    text-align: center;
  }
}