/* css/navigation.css
   ============================================================
   Primary navigation, mobile menu, language switcher
   ============================================================ */

/* ── Primary nav ─────────────────────────────────────────────── */
.site-nav {
  display: flex;
  align-items: center;
}

.site-nav ul {
  list-style: none;
  display: flex;
  gap: var(--space-xs);
  align-items: center;
}

.site-nav a {
  display: block;
  padding: 0.5rem var(--space-sm);
  font-family: var(--font-nav);
  font-size: var(--font-size-sm);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-primary);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
  position: relative;
}

/* Active underline indicator */
.site-nav a::after {
  content: '';
  position: absolute;
  bottom: 2px; left: var(--space-sm); right: var(--space-sm);
  height: 2px;
  background: var(--color-accent);
  border-radius: 1px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--color-accent);
  text-decoration: none;
}
.site-nav a:hover::after,
.site-nav a:focus-visible::after,
.site-nav .is-active::after {
  transform: scaleX(1);
}

.site-nav .is-active {
  color: var(--color-accent);
}

/* Contact link as CTA pill */
.site-nav .nav-contact a {
  background: var(--color-accent);
  color: var(--color-white);
  padding: 0.45rem 1.1rem;
  border-radius: 2rem;
}
.site-nav .nav-contact a::after { display: none; }
.site-nav .nav-contact a:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

/* ── Language switcher ──────────────────────────────────────── */
.language-switcher {
  display: flex;
  gap: 0.25rem;
  margin-left: var(--space-md);
}

.language-switcher a {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted);
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  text-decoration: none;
  transition: all var(--transition-fast);
}
.language-switcher a:hover,
.language-switcher a.is-active {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
  text-decoration: none;
}

/* ── Mobile menu toggle ─────────────────────────────────────── */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  flex-direction: column;
  gap: 5px;
  z-index: var(--z-nav);
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-fast);
}
.nav-toggle.is-open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ── Mobile breakpoint ──────────────────────────────────────── */
@media (max-width: 767px) {
  .nav-toggle { display: flex; }

  .site-nav {
    display: none;
    position: fixed;
    inset: 0;
    background: var(--color-primary);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: calc(var(--z-nav) - 1);
    padding: var(--space-xl);
  }
  .site-nav.is-open { display: flex; }

  .site-nav ul {
    flex-direction: column;
    gap: var(--space-sm);
    text-align: center;
  }

  .site-nav a {
    color: var(--color-white);
    font-size: 1.2rem;
  }
  .site-nav a::after { background: var(--color-accent); }

  .site-nav .nav-contact a {
    background: var(--color-accent);
    margin-top: var(--space-sm);
  }

  .language-switcher {
    margin: var(--space-md) 0 0;
  }
  .language-switcher a {
    color: rgba(255,255,255,0.6);
    border-color: rgba(255,255,255,0.2);
  }
  .language-switcher a:hover,
  .language-switcher a.is-active {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-white);
  }
}