/* ============================================================
   Órbita Studio — nav.css
   Header sticky + menú móvil.
   ============================================================ */

.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

/* Al hacer scroll: cristal esmerilado (clase añadida desde main.js) */
.nav.is-scrolled {
  background: rgba(10, 15, 30, 0.72);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--color-border);
  box-shadow: 0 8px 30px -16px rgba(0, 0, 0, 0.6);
}

.nav__inner {
  max-width: var(--max-width);
  margin-inline: auto;
  height: var(--nav-height);
  padding-inline: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

/* ---------- Logo ---------- */
.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  flex-shrink: 0;
  transition: opacity 0.2s ease;
}

.logo:hover {
  opacity: 0.85;
}

.logo__symbol {
  flex-shrink: 0;
}

.logo__text {
  font-family: var(--font-logo);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
  color: var(--color-text);
}

.logo__text--accent {
  color: var(--color-accent);
  margin-left: 0.15em;
}

/* ---------- Links escritorio ---------- */
.nav__links {
  display: flex;
  align-items: center;
  gap: 2.25rem;
}

.nav__links a {
  position: relative;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-muted);
  transition: color 0.2s ease;
}

/* Subrayado animado (solo en los links, no en el CTA) */
.nav__links a:not(.nav__cta)::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -7px;
  height: 1.5px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}

.nav__links a:not(.nav__cta):hover {
  color: var(--color-text);
}

.nav__links a:not(.nav__cta):hover::after {
  transform: scaleX(1);
}

/* CTA tipo pill con glow */
.nav__links .nav__cta {
  color: var(--color-text);
  background: var(--color-accent);
  padding: 0.55rem 1.25rem;
  border-radius: 100px;
  box-shadow: 0 4px 14px -4px rgba(79, 142, 247, 0.55);
  transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
}

.nav__links .nav__cta:hover {
  color: var(--color-text);
  transform: translateY(-1px);
  filter: brightness(1.05);
  box-shadow: 0 8px 22px -6px rgba(79, 142, 247, 0.75);
}

/* ---------- Botón hamburguesa ---------- */
.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2.5rem;
  height: 2.5rem;
  flex-shrink: 0;
}

.nav__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin-inline: auto;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.2s ease;
}

.nav__toggle.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav__toggle.is-open span:nth-child(2) {
  opacity: 0;
}
.nav__toggle.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ============================================================
   Responsive — Nav móvil (< 768px)
   ============================================================ */
@media (max-width: 768px) {
  .nav__toggle {
    display: flex;
  }

  .nav__links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: rgba(10, 15, 30, 0.92);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--color-border);
    padding: 0.5rem 1.5rem 1.5rem;

    transform: translateY(-150%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.3s ease, opacity 0.3s ease, visibility 0.3s;
  }

  .nav__links.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav__links a {
    padding: 0.9rem 0;
    font-size: 1.05rem;
    border-bottom: 1px solid var(--color-border);
  }

  /* Desactivar el subrayado animado en móvil (ocupa toda la fila) */
  .nav__links a:not(.nav__cta)::after {
    display: none;
  }

  .nav__links .nav__cta {
    margin-top: 1rem;
    text-align: center;
    border-bottom: none;
  }
}