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

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

/* Adds subtle border when user has scrolled */
.nav.is-scrolled {
  border-bottom-color: var(--color-border);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

/* ---- Logo / Name ---- */
.nav__logo {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text);
  transition: opacity var(--transition-fast);
}

.nav__logo:hover {
  opacity: 0.65;
}

/* ---- Desktop Links ---- */
.nav__links {
  display: none;
  align-items: center;
  gap: var(--space-10);
}

.nav__link {
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-text);
  transition: width var(--transition);
}

.nav__link:hover,
.nav__link.is-active {
  color: var(--color-text);
  opacity: 1;
}

.nav__link:hover::after,
.nav__link.is-active::after {
  width: 100%;
}

/* ---- Resume CTA ---- */
.nav__resume {
  display: none;
}

/* ---- Hamburger ---- */
.nav__hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 28px;
  height: 28px;
  cursor: pointer;
  padding: 0;
}

.nav__hamburger span {
  display: block;
  width: 100%;
  height: 1.5px;
  background-color: var(--color-text);
  transition: all var(--transition);
  transform-origin: center;
}

/* Hamburger → X animation */
.nav__hamburger.is-open span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.nav__hamburger.is-open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.nav__hamburger.is-open span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* ---- Mobile Menu Overlay ---- */
.nav__mobile-menu {
  position: fixed;
  inset: 0;
  background-color: var(--color-bg);
  z-index: 99;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: var(--space-8);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.nav__mobile-menu.is-open {
  opacity: 1;
  pointer-events: all;
}

.nav__mobile-link {
  font-family: var(--font-heading);
  font-size: var(--text-4xl);
  color: var(--color-text);
  transition: opacity var(--transition-fast);
}

.nav__mobile-link:hover {
  opacity: 0.5;
}

.nav__mobile-resume {
  margin-top: var(--space-4);
}

/* =============================================================
   RESPONSIVE — Tablet / Desktop
   ============================================================= */
@media (min-width: 768px) {
  .nav__links {
    display: flex;
  }

  .nav__resume {
    display: inline-flex;
  }

  .nav__hamburger {
    display: none;
  }

  .nav__mobile-menu {
    display: none;
  }
}