/* ================================================
   PLANTILLA 9 SECCIONES — ADD-ON CSS
   Prefijo: "t9-"
   Añadir DESPUÉS de article_add_on_style.css
   y project_article_add_on.css.
   Solo contiene los 3 componentes que NO existían
   ya en el sistema: arquitectura, dual agente/teoría
   y los dos CTA de cierre.
   ================================================ */

/* ------------------------------------------------
   SECCIÓN 5 — Diagrama de arquitectura (bloques + flecha)
   ------------------------------------------------ */
.t9-arch-row {
  display: flex;
  align-items: stretch;
  flex-wrap: wrap;
  gap: 0;
  margin: 20px 0 12px;
}

.t9-arch-block {
  flex: 1 1 160px;
  background: var(--background-secondary, #f4f6f8);
  border: 1px solid var(--border-color, #e1e8ed);
  border-top: 3px solid var(--fuzzy-ocean, #006a87);
  border-radius: 8px;
  padding: 14px 16px;
  min-width: 140px;
}

.t9-arch-block__label {
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: .08em;
  font-weight: 700;
  color: var(--fuzzy-ocean, #006a87);
  margin-bottom: 4px;
}

.t9-arch-block__desc {
  font-size: 13.5px;
  color: var(--text-primary, #1a2b3c);
  line-height: 1.5;
}

.t9-arch-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 10px;
  color: var(--border-color, #cbd5de);
  flex: 0 0 auto;
}

.t9-arch-note {
  font-size: 13.5px;
  color: var(--text-secondary, #5a6c7d);
  line-height: 1.65;
  margin-top: 6px;
}

/* ------------------------------------------------
   SECCIÓN 6 — Dual: proceso con el agente ↔ principio que validaste
   ------------------------------------------------ */
.t9-dual {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin: 20px 0;
  border: 1px solid var(--border-color, #e1e8ed);
  border-radius: 10px;
  overflow: hidden;
}

.t9-dual__header {
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.t9-dual__header-col {
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: .08em;
  font-weight: 700;
  padding: 10px 16px;
}

.t9-dual__header-col--agent {
  background: rgba(50, 236, 253, 0.1);
  color: var(--fuzzy-ocean, #006a87);
}

.t9-dual__header-col--human {
  background: rgba(0, 183, 108, 0.1);
  color: #065f46;
  border-left: 1px solid var(--border-color, #e1e8ed);
}

.t9-dual__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--border-color, #e1e8ed);
}

.t9-dual__cell {
  padding: 14px 16px;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--text-primary, #1a2b3c);
}

.t9-dual__cell--human {
  border-left: 1px solid var(--border-color, #e1e8ed);
  background: rgba(0, 183, 108, 0.03);
}

/* ------------------------------------------------
   SECCIÓN 9 — CTA de cierre (dos variantes fijas)
   ------------------------------------------------ */
.t9-cta {
  border-radius: 8px;
  padding: 16px 20px;
  margin: 24px 0 0;
  font-size: 14.5px;
  line-height: 1.65;
}

.t9-cta--aprender {
  background: rgba(0, 183, 108, 0.07);
  border: 1px solid rgba(0, 183, 108, 0.25);
  color: var(--text-primary, #1a2b3c);
}

.t9-cta--aprender strong { color: #065f46; }

.t9-cta--contratar {
  background: rgba(0, 106, 135, 0.07);
  border: 1px solid rgba(0, 106, 135, 0.25);
  color: var(--text-primary, #1a2b3c);
}

.t9-cta--contratar strong { color: var(--fuzzy-ocean, #006a87); }

/* ================================================
   RESPONSIVE — MOBILE (≤ 768px)
   ================================================ */
@media (max-width: 768px) {

  .t9-arch-row {
    flex-direction: column;
  }

  .t9-arch-arrow {
    transform: rotate(90deg);
    padding: 6px 0;
  }

  .t9-dual__header,
  .t9-dual__row {
    grid-template-columns: 1fr;
  }

  .t9-dual__header-col--human,
  .t9-dual__cell--human {
    border-left: none;
    border-top: 1px solid var(--border-color, #e1e8ed);
  }
}