.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 var(--container-px);
  transition: background 0.35s ease, backdrop-filter 0.35s ease, box-shadow 0.35s ease;
}

/* Transparent per defecte (sobre hero fosc) */
.nav--transparent {
  background: transparent;
}

/* Glassmorphism quan fa scroll */
.nav--solid {
  background: rgba(236, 237, 220, 0.82);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: 0 1px 0 rgba(68, 5, 5, 0.08);
}

.nav__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
  transition: color 0.3s ease;
}

.nav__icon {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  object-fit: cover;
}

.nav--transparent .nav__logo { color: #fff; }
.nav--solid .nav__logo { color: var(--color-primary); }

.nav__links {
  display: flex;
  gap: 0.25rem;
  list-style: none;
}

.nav__links a {
  display: block;
  padding: 0.4rem 1rem;
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: 20px;
  transition: background 0.18s ease, color 0.18s ease;
}

.nav--transparent .nav__links a {
  color: rgba(255,255,255,0.85);
}
.nav--transparent .nav__links a:hover,
.nav--transparent .nav__links a.active {
  background: rgba(255,255,255,0.15);
  color: #fff;
}

.nav--solid .nav__links a {
  color: var(--color-primary);
  opacity: 0.75;
}
.nav--solid .nav__links a:hover,
.nav--solid .nav__links a.active {
  background: rgba(68, 5, 5, 0.08);
  opacity: 1;
}

/* Hamburger */
.nav__toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.4rem;
}

.nav__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 5px 0;
  border-radius: 2px;
  transition: background 0.3s ease, transform 0.25s ease, opacity 0.25s ease;
}

.nav--transparent .nav__toggle span { background: #fff; }
.nav--solid .nav__toggle span { background: var(--color-primary); }