/**
 * @file services.css
 * Estilos BEM para la escena Sticky de los 9 Servicios de Syntek
 * SDD: docs/06-interactions.md, docs/05-content-services.md
 */

.services {
  position: relative;
  background-color: var(--color-bg-base);
  z-index: 20;
  transition: background-color var(--transition-base);
}

.services__sticky {
  position: relative;
  width: 100%;
  height: 100vh;
  height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
  padding: calc(var(--space-2xl) + 2rem) 0 var(--space-xl);
}

.services__top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-2xl);
  border-bottom: 1px solid var(--color-border-subtle);
  padding-bottom: var(--space-sm);
}

.services__pagination {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.services__pagination-current {
  color: var(--color-cyan);
  font-weight: 700;
  font-size: var(--text-sm);
}

.services__pagination-total {
  color: var(--color-text-dim);
}

.services__dots {
  display: flex;
  align-items: center;
  gap: 6px;
}

.services__dot {
  width: 24px;
  height: 3px;
  background: var(--color-border-subtle);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  cursor: pointer;
}

.services__dot--active {
  width: 48px;
  background: var(--gradient-tech);
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.5);
}

/* =========================================
   SPLIT GRID LAYOUT
   ========================================= */
.services__grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
  min-height: 520px;
}

/* =========================================
   TEXT CONTENT COLUMN
   ========================================= */
.services__content-column {
  position: relative;
  min-height: 480px;
  display: flex;
  align-items: center;
}

.services__card {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
  pointer-events: none;
}

.services__card--active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
  position: relative;
}

.services__meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-sm);
}

.services__number {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: 800;
  color: var(--color-cyan);
  line-height: 1;
  text-shadow: 0 0 20px rgba(0, 229, 255, 0.3);
}

.services__tag {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  padding: 0.2rem 0.65rem;
  background: rgba(0, 229, 255, 0.08);
  border: 1px solid rgba(0, 229, 255, 0.2);
  border-radius: var(--radius-sm);
  color: var(--color-cyan);
  letter-spacing: 0.08em;
}

.services__title {
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-text-primary);
  line-height: 1.15;
  margin-bottom: var(--space-xs);
}

.services__subtitle {
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-cyan);
  margin-bottom: var(--space-md);
}

.services__desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-lg);
}

.services__bullets {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm) var(--space-md);
  margin-bottom: var(--space-lg);
}

.services__bullet-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-xs);
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
  line-height: 1.45;
}

.services__bullet-icon {
  flex-shrink: 0;
  width: 14px;
  height: 14px;
  margin-top: 2px;
  color: var(--color-cyan);
}

.services__key-message {
  padding: var(--space-md) var(--space-lg);
  background: var(--color-border-subtle);
  border-left: 3px solid var(--color-blue);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: var(--text-xs);
  font-style: italic;
  color: var(--color-text-secondary);
  position: relative;
  backdrop-filter: blur(8px);
}

.services__key-message strong {
  font-style: normal;
  color: var(--color-text-primary);
}

/* =========================================
   MEDIA COLUMN (IMAGE & BAD SIGNAL)
   ========================================= */
.services__media-column {
  position: relative;
  aspect-ratio: 16 / 10;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border-subtle);
  box-shadow: var(--shadow-card);
  background: var(--color-bg-surface);
}

.services__media-item {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}

.services__media-item--active {
  opacity: 1;
  visibility: visible;
}

.services__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.services__noise-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
  cursor: default;
  pointer-events: auto;
}



/* =========================================
   RESPONSIVE DESIGN (SERVICES)
   ========================================= */
@media (max-width: 1024px) {
  .services__grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
    min-height: auto;
  }

  .services__sticky {
    height: auto;
    position: relative;
    padding: var(--space-3xl) 0;
  }

  .services__media-column {
    order: -1;
    max-height: 340px;
    aspect-ratio: 16 / 9;
  }

  .services__content-column {
    min-height: auto;
  }

  .services__card {
    position: relative;
    opacity: 1;
    visibility: visible;
    transform: none;
    pointer-events: auto;
    display: none;
  }

  .services__card--active {
    display: flex;
  }

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

@media (max-width: 640px) {
  .services__top-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
  }

  .services__title {
    font-size: var(--text-2xl);
  }

  .services__media-column {
    aspect-ratio: 4 / 3;
  }
}