/* ============================================================
   LEOSTUDIO — sections/cta-footer.css
   Cierre del sitio: CTA final oscuro con glow decorativo +
   footer continuo (mismo fondo, separados por border-top).
   Mobile-first. Depende de: tokens.css, base.css, animations.css.
   Nota: los rgba() decorativos vienen especificados literalmente
   en el brief del Sprint 8 (no existen como tokens).
   ============================================================ */

/* === CTA FINAL === */

.ls-cta-final {
  position: relative;
  overflow: hidden; /* recorta el glow para que no genere scroll horizontal */
  padding-block: clamp(var(--space-2xl), 10vw, var(--space-3xl));
  background: var(--bg-dark);
  text-align: center;
}

/* Glow decorativo centrado */
.ls-cta-final__glow {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 0;
  width: 600px;
  height: 600px;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(123, 63, 228, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

/* Fondo interactivo: destellos de color que siguen el cursor.
   Capa decorativa detrás del contenido (z-index 0) — no resta legibilidad
   porque mezcla en 'screen' (solo suma luz) y el texto va por encima.
   El JS añade .is-active y actualiza --fx-x / --fx-y; sin JS, en touch o con
   prefers-reduced-motion la capa permanece invisible. */
.ls-cta-final__fx {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-slow);
}

.ls-cta-final__fx.is-active {
  opacity: 1;
}

/* Halo suave que persigue al cursor */
.ls-cta-final__fx::before {
  content: '';
  position: absolute;
  left: var(--fx-x, 50%);
  top: var(--fx-y, 50%);
  width: 360px;
  height: 360px;
  transform: translate(-50%, -50%);
  background: radial-gradient(
    circle,
    rgba(123, 63, 228, 0.28) 0%,
    rgba(30, 43, 255, 0.12) 45%,
    transparent 70%
  );
  mix-blend-mode: screen;
  transition: left 140ms var(--ease-out-expo),
              top 140ms var(--ease-out-expo);
}

/* Cada destello individual (creado por JS, color de la paleta de la melena) */
.ls-cta-final__spark {
  position: absolute;
  width: var(--spark-size, 8px);
  height: var(--spark-size, 8px);
  border-radius: 50%;
  background: var(--spark-color, var(--purple-soft));
  transform: translate(-50%, -50%);
  mix-blend-mode: screen;
  filter: blur(0.5px);
  animation: cta-spark 720ms var(--ease-out-expo) forwards;
}

.ls-cta-final__inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
}

.ls-cta-final__pill {
  padding: 0.375rem 1rem;
  border-radius: var(--radius-pill);
  background: rgba(30, 43, 255, 0.15);
  border: 1px solid rgba(30, 43, 255, 0.3);
  color: var(--blue-soft);
  font-size: 0.875rem;
  font-weight: 600;
}

.ls-cta-final__title {
  max-width: 700px;
  margin-inline: auto;
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  color: var(--text-on-dark);
}

.ls-cta-final__subtitle {
  max-width: 520px;
  margin-inline: auto;
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  color: var(--text-on-dark-soft);
}

/* CTAs: stack en mobile, fila desde tablet */
.ls-cta-final__ctas {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: var(--space-sm);
  width: 100%;
  margin-top: var(--space-xs);
}

@media (min-width: 600px) {
  .ls-cta-final__ctas {
    flex-direction: row;
    justify-content: center;
    width: auto;
  }
}

.ls-cta-final__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-xl);
  border-radius: var(--radius-btn);
  font-size: 1rem;
  font-weight: 600;
  transition: transform var(--transition-base),
              box-shadow var(--transition-base),
              background var(--transition-base),
              border-color var(--transition-base);
}

.ls-cta-final__btn--primary {
  background: var(--gradient-primary);
  color: var(--text-on-dark);
  box-shadow: var(--shadow-card);
}

.ls-cta-final__btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-card-hover);
}

.ls-cta-final__btn--secondary {
  background: transparent;
  border: 1px solid var(--border-dark);
  color: var(--text-on-dark);
}

.ls-cta-final__btn--secondary:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--blue-soft);
}

/* Fila de confianza */
.ls-cta-final__trust {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--space-xs) var(--space-sm);
  margin-top: var(--space-xs);
}

.ls-cta-final__trust-item {
  display: inline-flex;
  align-items: center;
  gap: 0.4ch;
  font-size: 0.8rem;
  color: var(--text-on-dark-soft);
}

.ls-cta-final__trust-sep {
  color: var(--text-on-dark-soft);
  opacity: 0.5;
}

/* === FOOTER === */

.ls-footer {
  position: relative;
  padding: var(--space-xl) 0 var(--space-lg);
  background: var(--bg-dark);
  border-top: 1px solid var(--border-dark);
}

/* Línea de acento de marca en el borde superior (transición desde el CTA) */
.ls-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg,
    var(--blue-deep), var(--purple), var(--magenta), var(--green));
  opacity: 0.5;
}

.ls-footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

/* Tablet: 2 columnas */
@media (min-width: 768px) {
  .ls-footer__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg) var(--space-xl);
  }
}

/* Desktop: 4 columnas (marca un poco más ancha) */
@media (min-width: 1024px) {
  .ls-footer__grid {
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
  }
}

/* Columna brand */
.ls-footer__logo {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  color: var(--text-on-dark);
}

.ls-footer__brand-icon {
  width: 24px;
  height: 24px;
  margin-right: 8px;
  border-radius: 50%;
}

.ls-footer__logo strong {
  font-weight: 800;
}

.ls-footer__tagline {
  max-width: 260px;
  margin-top: var(--space-xs);
  font-size: 0.9375rem;
  color: var(--text-on-dark-soft);
}

.ls-footer__social {
  display: flex;
  gap: var(--space-xs);
  margin-top: var(--space-md);
}

.ls-footer__social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.7);
  transition: background var(--transition-base),
              border-color var(--transition-base),
              color var(--transition-base),
              transform var(--transition-base);
}

.ls-footer__social-link:hover {
  background: var(--gradient-primary);
  border-color: transparent;
  color: var(--text-on-dark);
  transform: translateY(-2px);
}

/* Columnas de links */
.ls-footer__label {
  margin-bottom: var(--space-sm);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-on-dark-soft);
}

.ls-footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  margin: 0;
  padding: 0;
  list-style: none;
}

.ls-footer__links a {
  font-size: 0.9rem;
  color: var(--text-on-dark-soft);
  transition: color var(--transition-fast);
}

.ls-footer__links a:hover {
  color: var(--purple-soft);
}

/* Separador */
.ls-footer__divider {
  margin: var(--space-lg) 0 var(--space-md);
  border: none;
  border-top: 1px solid var(--border-dark);
}

/* Fila inferior */
.ls-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-xs);
}

.ls-footer__bottom span {
  font-size: 0.8rem;
  color: var(--text-on-dark-soft);
}

/* Mobile: barra inferior centrada y apilada */
@media (max-width: 767px) {
  .ls-footer__bottom {
    flex-direction: column;
    align-items: center;
    gap: var(--space-xs);
    text-align: center;
  }
}

/* === REDUCED MOTION === */

@media (prefers-reduced-motion: reduce) {
  .ls-footer__social-link {
    transition: none;
  }

  .ls-footer__social-link:hover {
    transform: none;
  }
}