/* ══════════════════════════════════════════════════════════════
   iarchitettura — Component: Navigation
   ══════════════════════════════════════════════════════════════ */

.nav {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  height: var(--nav-h);
  z-index: 900;
  background-color: transparent;
  border-bottom: 1px solid transparent;
  transition:
    background-color var(--t-base),
    border-color     var(--t-base),
    backdrop-filter  var(--t-base);
}

/* ── Scrolled state (added by JS) ────────────────────────────── */
.nav.is-scrolled {
  background-color: rgba(10, 10, 10, 0.88);
  backdrop-filter: blur(14px) saturate(180%);
  -webkit-backdrop-filter: blur(14px) saturate(180%);
  border-color: var(--c-border-dark);
}

/* ── Inner layout ────────────────────────────────────────────── */
.nav__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ── Brand / Logo ────────────────────────────────────────────── */
.nav__brand {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  color: var(--c-ivory);
  transition: opacity var(--t-base);
  flex-shrink: 0;
}
.nav__brand:hover { opacity: 0.65; }

.nav__mark {
  width: 18px;
  height: auto;
  color: currentColor;
  flex-shrink: 0;
}
.nav__wordmark {
  font-size: 0.92rem;
  font-weight: var(--fw-normal);
  letter-spacing: 0.12em;
  color: currentColor;
}

/* ── Desktop links ───────────────────────────────────────────── */
.nav__links {
  display: flex;
  align-items: center;
  gap: var(--sp-10);
}

.nav__link {
  position: relative;
  font-size: var(--text-2xs);
  font-weight: var(--fw-normal);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  text-indent: 0.22em;
  color: rgba(244,244,241,0.65);
  transition: color var(--t-base);
}
.nav__link::after {
  content: '';
  position: absolute;
  inset-block-end: -4px;
  inset-inline-start: 0;
  width: 0;
  height: 1px;
  background-color: var(--c-gold);
  transition: width var(--t-base);
}
.nav__link:hover,
.nav__link:focus-visible {
  color: var(--c-ivory);
}
.nav__link:hover::after,
.nav__link:focus-visible::after {
  width: 100%;
}
.nav__link:focus-visible {
  outline: 1px solid var(--c-gold);
  outline-offset: 4px;
}

/* ── CTA link (last item, highlighted) ───────────────────────── */
.nav__link--cta {
  color: var(--c-gold);
}
.nav__link--cta::after { background-color: var(--c-gold); }
.nav__link--cta:hover { color: var(--c-gold); }

/* ── Hamburger (mobile only) ─────────────────────────────────── */
.nav__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  padding: var(--sp-2);
  color: var(--c-ivory);
  z-index: 1001;
}
.nav__hamburger span {
  display: block;
  width: 22px;
  height: 1px;
  background-color: currentColor;
  transition: transform var(--t-base), opacity var(--t-fast);
  transform-origin: center;
}
/* Open state */
.nav__hamburger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(3.5px) rotate(45deg);
}
.nav__hamburger[aria-expanded="true"] span:nth-child(2) {
  transform: translateY(-3.5px) rotate(-45deg);
}

/* ── Mobile overlay ──────────────────────────────────────────── */
.nav__overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0,0,0,0.55);
  z-index: 899;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--t-slow);
}
.nav__overlay.is-open {
  opacity: 1;
  pointer-events: auto;
}

/* ── Mobile menu panel ───────────────────────────────────────── */
.nav__mobile {
  position: fixed;
  inset-block: 0;
  inset-inline-end: 0;
  width: min(300px, 78vw);
  background-color: var(--c-black);
  z-index: 900;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--sp-10);
  padding: var(--sp-16) var(--sp-8);
  transform: translateX(100%);
  transition: transform var(--t-slow);
}
.nav__mobile.is-open {
  transform: translateX(0);
}

.nav__mobile-links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-8);
}
.nav__mobile-link {
  font-size: var(--text-xl);
  font-weight: var(--fw-light);
  letter-spacing: 0.08em;
  color: var(--c-ivory);
  transition: color var(--t-base);
}
.nav__mobile-link:hover { color: var(--c-gold); }

/* ── Responsive breakpoint ───────────────────────────────────── */
@media (max-width: 768px) {
  .nav__links    { display: none; }
  .nav__hamburger { display: flex; }
}