/* ─── NAVIGATION ─── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 28px 60px;
  transition: all .4s ease;
}

nav.scrolled {
  padding: 18px 60px;
  background: rgba(247, 244, 239, .94);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: .12em;
  color: var(--ink);
  text-decoration: none;
}

.nav-logo span { color: var(--green); }

.nav-links {
  display: flex;
  gap: 40px;
  list-style: none;
}

.nav-links a {
  font-size: .75rem;
  font-weight: 500;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-2);
  text-decoration: none;
  transition: color .3s;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 1px;
  background: var(--green);
  transition: width .3s;
}

.nav-links a:hover { color: var(--green); }
.nav-links a:hover::after { width: 100%; }

.nav-cta {
  font-size: .72rem;
  font-weight: 500;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-inv);
  background: var(--green);
  padding: 10px 24px;
  text-decoration: none;
  transition: background .3s;
}

.nav-cta:hover { background: var(--green-mid); }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 10px;
  min-width: 44px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.hamburger span {
  display: block;
  width: 26px; height: 1.5px;
  background: var(--ink);
  transition: all .3s;
}

/* ─── MOBILE MENU ─── */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 99;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 40px;
  transform: translateX(100%);
  transition: transform .4s ease;
  border-left: 1px solid var(--border);
}

.mobile-menu.open { transform: translateX(0); }

.mobile-menu a {
  font-family: var(--serif);
  font-size: 2.2rem;
  font-weight: 300;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: .03em;
  transition: color .3s;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  padding: 8px 0;
}

.mobile-menu a:hover { color: var(--green); }

.close-menu {
  position: absolute;
  top: 16px; right: 20px;
  background: none;
  border: none;
  color: var(--ink);
  font-size: 1.3rem;
  cursor: pointer;
  padding: 12px;
  line-height: 1;
  min-width: 44px;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

/* ─── RESPONSIVE NAV ─── */
@media (max-width: 1024px) {
  nav { padding: 22px 32px; }
  nav.scrolled { padding: 16px 32px; }
  .nav-links, .nav-cta { display: none; }
  .hamburger { display: flex; }
}

@media (max-width: 640px) {
  nav { padding: 20px; }
  nav.scrolled { padding: 14px 20px; }
}