/**
 * COMPONENTE — Header flotante en píldora
 * Estado inicial: transparente (texto claro, sobre secciones oscuras).
 * .is-scrolled: agrega glassmorphism (oscuro por defecto).
 * .is-over-light: cuando una sección con [data-nav-invert] está detrás del
 * header (ver nav.js), invierte texto a tinta oscura y el glass a tokens claros.
 */

.nav-pill {
  --nav-fg: var(--color-hero-text);
  --nav-fg-muted: var(--color-hero-text-muted);

  position: fixed;
  top: var(--space-4);
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
  width: min(calc(100% - var(--space-6)), var(--container-max-width));
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-pill);
  background: transparent;
  border: 1px solid transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  box-shadow: none;
  transition: background-color var(--duration-base) var(--ease-out),
              border-color var(--duration-base) var(--ease-out),
              backdrop-filter var(--duration-base) var(--ease-out),
              box-shadow var(--duration-base) var(--ease-out),
              padding var(--duration-base) var(--ease-out),
              color var(--duration-base) var(--ease-out);
}

.nav-pill.is-over-light {
  --nav-fg: var(--color-text);
  --nav-fg-muted: var(--color-text-muted);
}

.nav-pill.is-scrolled {
  background: var(--glass-dark-bg);
  border-color: var(--glass-dark-border);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  box-shadow: var(--glass-dark-shadow);
  padding: var(--space-1) var(--space-2);
}

.nav-pill.is-scrolled.is-over-light {
  background: var(--glass-bg);
  border-color: var(--glass-border);
  box-shadow: var(--glass-shadow);
}

.nav-pill__logo {
  display: inline-flex;
  align-items: center;
  padding-inline: var(--space-3);
}

.nav-pill__logo img {
  display: block;
  height: var(--space-5);
  width: auto;
}

.nav-pill__links {
  display: none;
  align-items: center;
  gap: var(--space-4);
}

.nav-pill__links a {
  font-size: 0.875rem;
  font-weight: 500;
  white-space: nowrap;
  color: var(--nav-fg-muted);
  transition: color var(--duration-fast) var(--ease-out);
}

.nav-pill__links a:hover {
  color: var(--nav-fg);
}

/* CTA distintivo — píldora de vidrio con borde degradado (marca) */
.nav-pill__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-pill);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--nav-fg);
  background:
    linear-gradient(var(--glass-dark-bg), var(--glass-dark-bg)) padding-box,
    linear-gradient(120deg, var(--color-secondary), var(--color-primary)) border-box;
  border: 1px solid transparent;
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  transition: transform var(--duration-fast) var(--ease-out),
              color var(--duration-base) var(--ease-out);
}

.nav-pill.is-over-light .nav-pill__cta {
  background:
    linear-gradient(var(--glass-bg), var(--glass-bg)) padding-box,
    linear-gradient(120deg, var(--color-secondary), var(--color-primary)) border-box;
}

.nav-pill__cta:hover {
  transform: translateY(-1px);
}

.nav-pill__cta .nav-pill__cta-arrow {
  transition: transform var(--duration-fast) var(--ease-out);
}

.nav-pill__cta:hover .nav-pill__cta-arrow {
  transform: translateX(3px);
}

@media (min-width: 1024px) {
  .nav-pill__links {
    display: flex;
  }
}