/* =============================================
    NAV
   ============================================= */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-8);
  background: transparent;
  transition: background var(--transition-slow), box-shadow var(--transition-slow);
}

.nav.is-scrolled {
  background: rgba(8, 12, 20, 0.92);
  box-shadow: 0 1px 0 var(--clr-border);
}

.nav__logo {
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  font-weight: 700;
  letter-spacing: 0.06em;
  flex-shrink: 1;
}

.nav__logo-bracket {
  color: var(--clr-primary);
}

.nav__logo-text {
  color: var(--clr-text);
  margin: 0 2px;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav__link {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--clr-text-muted);
  letter-spacing: 0.1em;
  text-transform: lowercase;
  transition: color var(--transition-fast);
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--clr-primary);
  transition: width var(--transition-base);
}

.nav__link:hover {
  color: var(--clr-primary);
}

.nav__link:hover::after {
  width: 100%;
}

.nav__link--cta {
  border: 1px solid var(--clr-primary);
  color: var(--clr-primary);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.nav__link--cta:hover {
  background: var(--clr-primary);
  color: var(--clr-bg);
}

.nav__link--cta::after { display: none; }

.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 2px 0;
}

.nav__hamburger span {
  display: block;
  height: 2px;
  background: var(--clr-text);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.nav__hamburger.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav__hamburger.is-open span:nth-child(2) {
  opacity: 0;
}
.nav__hamburger.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Active nav link */
.nav__link.is-active {
  color: var(--clr-primary);
}

@media (max-width: 768px) {
  .nav { padding: 0 var(--space-4); }

  .nav__hamburger { 
    display: flex;
    z-index: 1010;  
   }

  .nav__links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: rgba(8, 12, 20, 0.97);
    padding: var(--space-4) 0;
    border-bottom: 1px solid var(--clr-border);
    z-index: 999;                        
    pointer-events: none;                
    opacity: 0;
    transform: translateY(-8px);
    right: 0;
    left: 0;
    top: var(--nav-height);
    transition: opacity var(--transition-base), transform var(--transition-base);
  }

  .nav__links.is-open {
    pointer-events: all;                
    opacity: 1;
    transform: translateY(0);
  }

  .nav__link {
    display: block;
    width: 100%;
    padding: var(--space-3) var(--space-6);
    font-size: var(--fs-sm);
  }

  .nav__link--cta {
    margin: var(--space-2) var(--space-6);
    width: auto;
    display: inline-flex;
  }
}