/* ═══ NAVIGATION ═══ */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: 60px;
  padding: 0 var(--content-pad);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(251, 248, 243, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: box-shadow var(--duration-normal) ease;
}
nav.scrolled {
  box-shadow: 0 1px 12px rgba(0,0,0,0.06);
}

nav .wm { font-size: 24px; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-family: 'DM Sans', sans-serif;
  font-weight: 400;
  font-size: 0.88rem;
  color: var(--ink);
  text-decoration: none;
  opacity: 0.6;
  position: relative;
  transition: opacity var(--duration-fast) ease, color var(--duration-fast) ease;
}
.nav-link:hover { opacity: 1; color: var(--saffron); }
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--saffron);
  transition: width var(--duration-normal) var(--ease-out-expo);
}
.nav-link:hover::after { width: 100%; }
.nav-link.active {
  opacity: 1;
  border-bottom: 2px solid var(--saffron);
  padding-bottom: 2px;
}
.how-it-works { opacity: 0.55; }

/* Nav primary button */
nav .nb {
  font-family: 'Sora', sans-serif;
  font-weight: 600;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  padding: 9px 20px;
  background: var(--ink);
  color: var(--paper);
  border: none;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
  white-space: nowrap;
  text-decoration: none;
  display: inline-block;
}
nav .nb:hover { background: var(--saffron); color: var(--ink); }

/* ─── Hamburger ─── */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 16px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
}
.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--ink);
  transition: transform 0.2s, opacity 0.2s;
}

/* ─── Mobile overlay ─── */
.mobile-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--ink);
  z-index: 200;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 32px;
}
.mobile-overlay.open { display: flex; }

.mobile-close {
  position: absolute;
  top: 20px;
  right: 24px;
  background: transparent;
  border: none;
  color: var(--paper);
  font-size: 1.5rem;
  cursor: pointer;
  font-family: 'DM Sans', sans-serif;
  opacity: 0.6;
  transition: opacity 0.15s;
}
.mobile-close:hover { opacity: 1; }

.mobile-links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
}
.mobile-links a {
  font-family: 'Sora', sans-serif;
  font-weight: 600;
  font-size: 1.4rem;
  color: var(--paper);
  text-decoration: none;
  letter-spacing: -0.02em;
  opacity: 0.7;
  transition: opacity 0.15s;
}
.mobile-links a:hover { opacity: 1; }

.mobile-cta {
  margin-top: 8px;
  font-size: 0.78rem !important;
  background: var(--saffron) !important;
  color: var(--ink) !important;
  padding: 14px 40px !important;
}

/* ─── Responsive ─── */
@media (max-width: 900px) {
  .nav-links { display: none; }
}

@media (max-width: 768px) {
  nav { padding: 0 var(--content-pad-mobile); }
  .hamburger { display: flex; }
}