site-header {
  display: block;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-header);
}

/* Editorial: transparente flotando sobre el Hero, se compacta con un
   fondo suave y una linea casi imperceptible al hacer scroll. */
.header-bar {
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background 420ms ease, border-color 420ms ease, backdrop-filter 420ms ease;
}

.header-bar.is-scrolled {
  background: rgba(251, 238, 241, 0.92);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border-color: var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-block: var(--space-4);
  transition: padding-block 420ms ease;
}

.header-bar.is-scrolled .header-inner {
  padding-block: var(--space-2);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: inherit;
}

.brand-logo {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: var(--shadow-sm);
  transition: width 420ms ease, height 420ms ease;
}

.header-bar.is-scrolled .brand-logo {
  width: 40px;
  height: 40px;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand-name {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--color-secondary);
}

.brand-tagline {
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-primary-dark);
}

.main-nav ul {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  list-style: none;
  margin: 0;
  padding: 0;
}

.main-nav a {
  color: var(--color-secondary);
  text-decoration: none;
  font-weight: 600;
  font-size: var(--fs-sm);
  position: relative;
  padding-block: var(--space-1);
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width var(--transition-base);
}

.main-nav a:hover::after {
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-secondary);
  cursor: pointer;
}

.nav-toggle svg {
  width: 20px;
  height: 20px;
}

@media (max-width: 860px) {
  .header-actions .btn-whatsapp span {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .main-nav {
    position: fixed;
    inset: 84px var(--space-4) auto var(--space-4);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
    padding: var(--space-4);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition-base), opacity var(--transition-base);
  }

  .main-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .main-nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
  }
}