/* =============================================
   HERO
============================================= */

.sistemas-hero {
  padding: 1.5rem 0;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-gray-light);
}

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

.sistemas-hero-text .lead {
  font-size: 1.08rem;
  font-weight: 400;
  color: var(--color-gray-text);
  line-height: 1.75;
  margin-top: 1.25rem;
  margin-bottom: 0.75rem;
}

.sistemas-hero-text .lead-button {
  font-size: 0.975rem;
  color: var(--color-gray-text);
  line-height: 1.75;
  margin-bottom: 1.75rem;
}

.sistemas-hero-image {
  position: relative;
  z-index: 2;
}

.sistemas-hero-image img {
  border-radius: var(--radius-md);
  object-fit: cover;
  height: 25rem;
  width: 100%;
  box-shadow: var(--shadow-md);
}

/* Marco decorativo */
.sistemas-hero-image::before {
  content: '';
  position: absolute;
  inset: 12px -12px -12px 12px;
  border: 1px solid rgba(242, 140, 40, 0.35);
  border-radius: var(--radius-md);
  z-index: -1;
}

/* =============================================
   TIPOS DE SISTEMAS
============================================= */

.sistemas-tipos {
  background: var(--color-white);
}

.sistemas-tipos-header {
  max-width: 44rem;
  margin-bottom: 3rem;
}

.sistemas-tipos-header h2 {
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  margin-bottom: 0.75rem;
  color: var(--color-primary);
}

.sistemas-tipos-header p {
  color: var(--color-gray-text);
  line-height: 1.75;
}

.sistemas-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.sistemas-card {
  background: var(--color-surface);
  border: 1px solid var(--color-gray-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform var(--t), box-shadow var(--t), border-color var(--t);
}

.sistemas-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: rgba(242, 140, 40, 0.35);
}

.sistemas-card-image {
  width: 100%;
  height: 12.5rem;
  overflow: hidden;
  background: var(--color-gray-light);
}

.sistemas-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}

.sistemas-card:hover .sistemas-card-image img {
  transform: scale(1.04);
}

.sistemas-card-body {
  padding: 1.5rem;
}

.sistemas-card-body h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 0.65rem;
}

.sistemas-card-body p {
  font-size: 0.9rem;
  color: var(--color-gray-text);
  line-height: 1.75;
}

/* =============================================
   EDITORIAL — OPERACIÓN
============================================= */

.sistemas-editorial {
  background: var(--color-surface);
}

.sistemas-editorial-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

.sistemas-editorial-text h2 {
  font-size: clamp(1.6rem, 2.8vw, 2.1rem);
  margin-bottom: 1.4rem;
  color: var(--color-primary);
}

.sistemas-editorial-text .lead {
  font-size: 1.08rem;
  font-weight: 500;
  color: var(--color-primary);
  line-height: 1.75;
  margin-bottom: 1.25rem;
}

.sistemas-editorial-text p {
  margin-bottom: 1rem;
  line-height: 1.8;
  color: var(--color-gray-text);
}

.sistemas-editorial-text .signature {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-gray-light);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-primary);
  line-height: 1.7;
}

.sistemas-editorial-image img {
  border-radius: var(--radius-md);
  object-fit: cover;
  height: 23.75rem;
  width: 100%;
  box-shadow: var(--shadow-md);
}

/* =============================================
   MÉTRICAS ANIMADAS
============================================= */

.sistemas-metrics {
  background: var(--color-primary);
}

.sistemas-metrics h2 {
  color: var(--color-white);
  text-align: center;
  margin-bottom: 3rem;
  font-size: clamp(1.6rem, 2.8vw, 2.1rem);
}

.sistemas-metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  text-align: center;
}

.sistemas-metric {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 1.75rem 1rem;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  transition: background var(--t), border-color var(--t);
}

.sistemas-metric:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.18);
}

.sistemas-metric-value {
  display: flex;
  align-items: baseline;
  gap: 0.2rem;
}

.sistemas-metric-number {
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--color-white);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.sistemas-metric-number.is-text {
  font-size: 1.8rem;
  letter-spacing: 0.04em;
}

.sistemas-metric-unit {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
}

.sistemas-metric p {
  font-size: 0.82rem;
  color: rgba(207, 216, 227, 0.65);
  line-height: 1.55;
  margin: 0;
}

/* =============================================
   FADE IN ON SCROLL
============================================= */

.fade-in-section {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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


/* =============================================
   RESPONSIVE — TABLET (≤ 960px)
============================================= */

@media (max-width: 960px) {
  .sistemas-hero {
    padding: 2.5rem 0;
  }

  .sistemas-hero-inner {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .sistemas-hero-image::before {
    display: none;
  }

  .sistemas-hero-image img {
    height: 18.75rem;
  }

  .sistemas-grid {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .sistemas-card-image {
    height: 13.75rem;
  }

  .sistemas-editorial-inner {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .sistemas-editorial-image img {
    height: 17.5rem;
  }

  .sistemas-metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* =============================================
   RESPONSIVE — MÓVIL (≤ 640px)
============================================= */

@media (max-width: 640px) {
  .sistemas-hero {
    padding: 2rem 0;
  }

  .sistemas-hero-image img {
    height: 13.75rem;
  }

  .sistemas-tipos-header {
    margin-bottom: 2rem;
  }

  .sistemas-card-image {
    height: 11.25rem;
  }

  .sistemas-editorial-image img {
    height: 13.75rem;
  }

  .sistemas-metrics-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }

  .sistemas-metric {
    padding: 1.25rem 0.75rem;
  }

  .sistemas-metric-number {
    font-size: 1.9rem;
  }
}