/* ═══════════════════════════════════════════════
   NAVIGATION
   ═══════════════════════════════════════════════ */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.7rem 4rem;
  /* Semi-transparent from the very start — always readable */
  background: rgba(13, 38, 32, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: background 0.5s, padding 0.4s, box-shadow 0.5s;
}

/* Scrolled: fully opaque white */
nav.scrolled {
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  padding: 0.4rem 4rem;
  box-shadow: 0 2px 24px rgba(0, 0, 0, 0.07);
  border-bottom-color: rgba(0,0,0,0.06);
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.nav-logo-img {
  height: 80px;              /* portrait logo: constrain by height */
  width: auto;
  max-width: 250px;          /* safety cap in case very wide */
  object-fit: contain;
  object-position: left center;
  filter: brightness(0) invert(1);
  transition: transform 0.3s var(--ease), height 0.4s var(--ease), background 0.4s, filter 0.4s;
}
.nav-logo:hover .nav-logo-img { transform: scale(1.04); }

/* Scrolled (white bg): natural colors, slightly smaller */
nav.scrolled .nav-logo-img {
  filter: none;
  height: 60px;
}

/* Desktop links */
.nav-links {
  display: flex;
  gap: 2.2rem;
  list-style: none;
}

.nav-links a {
  font-family: var(--font-body);
  font-size: 0.85rem;          /* increased from 0.78rem */
  font-weight: 500;
  color: rgba(255, 255, 255, 0.92);
  text-decoration: none;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  position: relative;
  transition: color 0.3s;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -3px; left: 0;
  width: 0; height: 1px;
  background: var(--gold);
  transition: width 0.3s var(--ease);
}
.nav-links a:hover { color: var(--white); }
.nav-links a:hover::after { width: 100%; }

/* Scrolled links */
nav.scrolled .nav-links a { color: var(--green); }
nav.scrolled .nav-links a:hover { color: var(--green-lt); }

/* Contact CTA pill */
.nav-cta {
  font-size: 0.78rem !important;
  letter-spacing: 0.12em !important;
  color: var(--gold) !important;
  border: 1px solid var(--gold);
  padding: 0.45rem 1.1rem !important;
  transition: background 0.3s, color 0.3s, border-color 0.3s !important;
}
.nav-cta:hover {
  background: var(--gold) !important;
  color: var(--black) !important;
}
.nav-cta::after { display: none !important; }

nav.scrolled .nav-cta {
  color: var(--green) !important;
  border-color: var(--green) !important;
}
nav.scrolled .nav-cta:hover {
  background: var(--green) !important;
  color: var(--white) !important;
}

/* Hamburger button */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: none;
  padding: 4px;
}
.nav-hamburger span {
  display: block;
  width: 24px; height: 1.5px;
  background: var(--white);
  transition: transform 0.3s, opacity 0.3s, background 0.3s;
}
nav.scrolled .nav-hamburger span { background: var(--green); }

.nav-hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* Full-screen mobile menu */
.mobile-menu {
  position: fixed; inset: 0; z-index: 99;
  background: var(--green-dk);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 1.5rem;
  transform: translateX(100%);
  transition: transform 0.5s var(--ease);
}
.mobile-menu.open { transform: translateX(0); }
.mobile-menu a {
  font-family: var(--font-display);
  font-size: 1.8rem; font-weight: 300;
  color: var(--white); text-decoration: none;
  letter-spacing: 0.05em; transition: color 0.3s;
}
.mobile-menu a:hover { color: var(--gold); }