/* ==========================================================================
   Navigation — sticky, transparent over hero, solid cream on scroll
   ========================================================================== */

.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-height);
  background: rgba(245, 235, 221, 0.96);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(74, 55, 40, 0.08);
  transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.site-nav .nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}
.nav-logo {
  font-family: var(--font-script);
  font-size: 1.9rem;
  line-height: 1;
  color: var(--bark);
  white-space: nowrap;
}
.nav-logo:hover { color: var(--rust); }

/* Transparent state (pages with a hero, before scroll) */
.site-nav.nav-transparent:not(.scrolled):not(.menu-open) {
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  border-bottom-color: transparent;
}
.site-nav.nav-transparent:not(.scrolled):not(.menu-open) .nav-logo,
.site-nav.nav-transparent:not(.scrolled):not(.menu-open) .nav-links a { color: var(--cream); }
.site-nav.nav-transparent:not(.scrolled):not(.menu-open) .nav-toggle span { background: var(--cream); }
.site-nav.nav-transparent:not(.scrolled):not(.menu-open) .nav-links a.nav-cta { border-color: rgba(245,235,221,0.7); }
.site-nav.scrolled { box-shadow: 0 4px 20px rgba(74, 55, 40, 0.08); }

/* Hamburger */
.nav-toggle {
  position: relative;
  width: 44px; height: 44px;
  background: none;
  border: 0;
  cursor: pointer;
  z-index: 102;
}
.nav-toggle span {
  position: absolute;
  left: 11px;
  width: 22px; height: 1.5px;
  background: var(--bark);
  transition: transform var(--transition), opacity var(--transition), top var(--transition);
}
.nav-toggle span:nth-child(1) { top: 15px; }
.nav-toggle span:nth-child(2) { top: 21px; }
.nav-toggle span:nth-child(3) { top: 27px; }
.menu-open .nav-toggle span:nth-child(1) { top: 21px; transform: rotate(45deg); }
.menu-open .nav-toggle span:nth-child(2) { opacity: 0; }
.menu-open .nav-toggle span:nth-child(3) { top: 21px; transform: rotate(-45deg); }

/* Mobile menu panel */
.nav-links {
  position: fixed;
  top: var(--nav-height); left: 0; right: 0;
  height: calc(100vh - var(--nav-height));
  height: calc(100dvh - var(--nav-height));
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  gap: 0.25rem;
  padding: var(--space-lg) var(--space-md);
  background: var(--cream);
  overflow-y: auto;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-12px);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
}
.menu-open .nav-links { opacity: 1; visibility: visible; transform: none; }
.nav-links a {
  position: relative;
  display: inline-block;
  padding: 0.55rem 0.5rem;
  font-family: var(--font-heading);
  font-size: 1.6rem;
  color: var(--bark);
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 50%; bottom: 0.35rem;
  width: 0; height: 1px;
  background: var(--rust);
  transition: width var(--transition), left var(--transition);
}
.nav-links a:hover::after, .nav-links a.active::after { width: 60%; left: 20%; }
.nav-links a.active { color: var(--rust); }
.nav-links a.nav-cta {
  margin-top: var(--space-sm);
  padding: 0.6rem 1.8rem;
  border: 1px solid var(--rust);
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-size: 0.85rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--rust);
}
.nav-links a.nav-cta::after { display: none; }
.nav-links a.nav-cta:hover, .nav-links a.nav-cta.active { background: var(--rust); color: var(--white) !important; }
body.no-scroll { overflow: hidden; }

/* Desktop */
@media (min-width: 1100px) {
  .nav-toggle { display: none; }
  .nav-links {
    position: static;
    height: auto;
    flex-direction: row;
    align-items: center;
    gap: 0.15rem;
    padding: 0;
    background: none;
    opacity: 1;
    visibility: visible;
    transform: none;
    overflow: visible;
  }
  .nav-links a {
    font-family: var(--font-body);
    font-size: 0.76rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    padding: 0.5rem 0.6rem;
  }
  .nav-links a::after { bottom: 0.2rem; }
  .nav-links a.nav-cta { margin: 0 0 0 0.6rem; padding: 0.5rem 1.2rem; font-size: 0.76rem; }
  .site-nav .nav-inner { padding: 0 var(--space-lg); }
}