/* HERO */
.architecture-hero {
  padding: 1.5rem 0;
  background: var(--color-surface);
}

.architecture-hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 4rem;
  align-items: center;
}

.architecture-hero-text h1 {
  font-size: clamp(2.5rem, 5vw, 3.4rem);
  margin-bottom: 0.5rem;
}

.architecture-hero-text .lead {
  font-size: 1.15rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.lead-button {
  margin-bottom: 1.5rem;
}

/* DIAGRAMA */
.architecture-diagram {
  position: relative;
  height: 20rem;
}

.diagram-node {
  position: absolute;
  padding: 0.8rem 1.2rem;
  background: var(--color-primary);
  color: var(--color-white);
  font-size: 0.8rem;
  border-radius: 0.25rem;
  animation: float 4s ease-in-out infinite;
}

.core  { top: 40%; left: 40%; }
.api   { top: 10%; left: 60%; }
.db    { bottom: 10%; left: 30%; }
.infra { bottom: 20%; right: 10%; }

@keyframes float {
  0%   { transform: translateY(0); }
  50%  { transform: translateY(-8px); }
  100% { transform: translateY(0); }
}

/* BLOQUES */
.architecture-block {
  padding: 6rem 0;
  background: var(--color-white);
}

.architecture-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 3rem;
}

.architecture-card {
  padding: 2rem;
  border-left: 4px solid var(--color-accent);
  background: var(--color-surface);
  transition: transform 0.3s ease;
}

.architecture-card:hover {
  transform: translateY(-6px);
}

/* MÉTRICAS */
.architecture-metrics {
  padding: 6rem 0;
  background: var(--color-secondary);
  color: var(--color-white);
}

.metrics-grid {
  display: flex;
  gap: 4rem;
}

.metric-number {
  font-size: 2.5rem;
  font-weight: 600;
}

.metric p {
  color: var(--color-white);
}

/* FADE */
.fade-in-section {
  opacity: 0;
  transform: translateY(40px);
  transition: 0.8s ease;
}

.fade-in-section.visible {
  opacity: 1;
  transform: translateY(0);
}

/* =============================================
   ARCHITECTURE FADE ROTATION
============================================= */

.architecture-visual {
  width: 100%;
  max-width: 32.5rem;
  height: 26.25rem;
  margin-left: auto;
  position: relative;
  overflow: hidden;
}

.arch-fade {
  position: relative;
  width: 100%;
  height: 100%;
  transition: opacity 1.2s ease-in-out;
}

.arch-fade img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  opacity: 0;
  transition: opacity 1.4s ease-in-out;
  pointer-events: none;
}

.arch-fade img.active {
  opacity: 1;
}

/* RESPONSIVE */
@media (max-width: 900px) {
  .architecture-hero {
    padding: 2rem 0;
  }

  .architecture-hero-text .lead {
    padding: 1rem 0;
  }

  .architecture-hero-inner {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .architecture-grid {
    grid-template-columns: 1fr;
  }

  .metrics-grid {
    flex-direction: column;
  }

  .architecture-visual {
    height: 20rem;
    margin: 3rem auto 0;
  }
}