/* =============================================================================
   ALPENDRA — nav.css
   Navigation: fixed top bar + mobile overlay
   ============================================================================= */

/* ── Body offset for fixed nav ────────────────────────────────────────────── */
body {
  padding-top: 72px;
}

/* ── Main Nav Bar ─────────────────────────────────────────────────────────── */
#main-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  z-index: 1000;
  height: 72px;
  background-color: var(--white);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 56px;
  border-bottom: 1px solid var(--gray-line);
  transition: box-shadow var(--transition);
}

#main-nav.scrolled {
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
}

/* ── Logo ─────────────────────────────────────────────────────────────────── */
.nav-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.nav-logo img {
  height: 36px;
  width: auto;
  object-fit: contain;
}

/* ── Desktop Nav Links ────────────────────────────────────────────────────── */
.nav-links {
  display: flex;
  gap: 36px;
  align-items: center;
}

.nav-links a {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  color: var(--gray-text);
  letter-spacing: 0.02em;
  transition: color var(--transition);
  position: relative;
}

.nav-links a:hover {
  color: var(--navy);
}

.nav-links a.active {
  color: var(--gold);
  opacity: 1;
}

/* ── Nav CTA Button ───────────────────────────────────────────────────────── */
.nav-cta {
  display: inline-flex;
  align-items: center;
  background-color: var(--navy);
  color: var(--white);
  padding: 10px 24px;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.05em;
  border: none;
  cursor: pointer;
  transition: background-color var(--transition), color var(--transition);
  white-space: nowrap;
}

.nav-cta:hover {
  background-color: var(--gold);
  color: var(--navy-deep);
}

/* ── Hamburger Button ─────────────────────────────────────────────────────── */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
  border: none;
  background: transparent;
  cursor: pointer;
  z-index: 1001;
}

.nav-hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background-color: var(--navy);
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav-hamburger.open span:nth-child(1) {
  transform: rotate(45deg) translate(4.5px, 4.5px);
}

.nav-hamburger.open span:nth-child(2) {
  opacity: 0;
}

.nav-hamburger.open span:nth-child(3) {
  transform: rotate(-45deg) translate(4.5px, -4.5px);
}

/* ── Mobile Overlay ───────────────────────────────────────────────────────── */
.nav-mobile-overlay {
  position: fixed;
  inset: 0;
  background-color: var(--white);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-8px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.nav-mobile-overlay.open {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
}

.nav-mobile-overlay a {
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 300;
  color: var(--navy);
  transition: color var(--transition);
}

.nav-mobile-overlay a:hover {
  color: var(--gold);
}

.nav-mobile-overlay .nav-mobile-cta {
  display: inline-flex;
  align-items: center;
  background-color: var(--gold);
  color: var(--navy-deep);
  padding: 14px 40px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.04em;
  margin-top: 16px;
  transition: background-color var(--transition);
}

.nav-mobile-overlay .nav-mobile-cta:hover {
  background-color: #b8933e;
  color: var(--navy-deep);
}

/* ── Responsive ───────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  #main-nav {
    padding: 0 24px;
  }

  .nav-links {
    display: none;
  }

  .nav-cta {
    display: none;
  }

  .nav-hamburger {
    display: flex;
  }
}