/* ============================================================
   PARALLAX — De ruido a enlace
   "QR caótico → QR limpio" sincronizado con scroll
   ============================================================ */

.qcd-parallax {
  position: relative;
  padding: var(--qcd-space-xxl) var(--qcd-space-md);
  background: linear-gradient(180deg, #ffffff 0%, #f5f5f7 100%);
  overflow: hidden;
}

.qcd-parallax::before,
.qcd-parallax::after {
  content: '';
  position: absolute;
  pointer-events: none;
  z-index: 0;
}

.qcd-parallax::before {
  top: -200px;
  right: -200px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0,168,120,0.16) 0%, transparent 60%);
  filter: blur(40px);
}

.qcd-parallax::after {
  bottom: -200px;
  left: -200px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(52,211,153,0.12) 0%, transparent 60%);
  filter: blur(40px);
}

.qcd-parallax__inner {
  position: relative;
  z-index: 1;
  max-width: var(--qcd-max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--qcd-space-xl);
  align-items: center;
}

/* ----- Texto narrativo ----- */
.qcd-parallax__text {
  opacity: 0;
  transform: translateY(50px);
  will-change: transform, opacity;
  text-align: center;
}

.qcd-parallax__title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.15;
  margin: var(--qcd-space-sm) 0;
  color: var(--qcd-txt);
  letter-spacing: -0.02em;
}

.qcd-parallax__title strong {
  background: var(--qcd-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.qcd-parallax__title-strike {
  position: relative;
  display: inline-block;
  color: var(--qcd-txt3);
}
.qcd-parallax__title-strike::after {
  content: '';
  position: absolute;
  left: -4px;
  right: -4px;
  top: 55%;
  height: 4px;
  background: var(--qcd-accent);
  border-radius: 2px;
  transform: rotate(-3deg);
}

.qcd-parallax__sub {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--qcd-txt2);
  margin: 0 0 var(--qcd-space-md);
}

.qcd-parallax__sub-highlight {
  color: var(--qcd-accent);
  font-weight: 700;
}

.qcd-parallax__url {
  display: inline-block;
  padding: 2px 10px;
  background: var(--qcd-gradient-soft);
  border: 1px solid rgba(0,168,120,0.25);
  border-radius: 6px;
  font-family: var(--qcd-font-mono);
  font-size: 0.95em;
  color: var(--qcd-accent3);
}

.qcd-parallax__cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  background: var(--qcd-gradient);
  color: #fff;
  border-radius: var(--qcd-radius-pill);
  font-weight: 600;
  text-decoration: none;
  box-shadow: var(--qcd-card-shadow-hover);
  transition: transform var(--qcd-transition), box-shadow var(--qcd-transition);
}
.qcd-parallax__cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 36px rgba(0,168,120,0.35);
}

/* ----- Stage del QR ----- */
.qcd-parallax__stage {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--qcd-space-sm);
  will-change: transform;
}

.qcd-parallax__frame {
  position: relative;
  box-sizing: border-box;
  width: 100%;
  max-width: 420px;
  background: #ffffff;
  border-radius: var(--qcd-radius-lg);
  box-shadow:
    0 4px 20px rgba(0, 0, 0, 0.06),
    0 24px 60px rgba(0, 168, 120, 0.18);
  padding: 22px;
  border: 1px solid var(--qcd-border);
  overflow: hidden;
}

.qcd-parallax__canvas {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
}

/* ----- Responsive ----- */
@media (max-width: 900px) {
  .qcd-parallax__inner {
    grid-template-columns: 1fr;
    gap: var(--qcd-space-lg);
  }
  .qcd-parallax__text {
    text-align: center;
    order: 2;
  }
  .qcd-parallax__stage {
    order: 1;
  }
  .qcd-parallax__frame {
    max-width: 320px;
  }
}

@media (max-width: 480px) {
  .qcd-parallax {
    padding: var(--qcd-space-xl) var(--qcd-space-sm);
  }
  .qcd-parallax__frame {
    max-width: 280px;
    padding: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .qcd-parallax__text {
    opacity: 1 !important;
    transform: none !important;
  }
  .qcd-parallax__stage {
    transform: none !important;
  }
}