/* ===== IA APLICADA SERVICIOS (Adapted to Dark Theme) ===== */
#ia {
  /* Using global dark theme colors from autosolve-web2.0 */
  --bg: #0C0F23;
  --bg-alt: rgba(12, 15, 35, 0.85);
  --titulo: #FFFFFF;
  --texto: rgba(255,255,255,.75);
  --texto-fuerte: #FFFFFF;
  --linea: rgba(255,255,255,.14);
  --linea-suave: rgba(255,255,255,.09);
  --chip-bg: rgba(255,255,255,.06);
  --chip-txt: rgba(255,255,255,.82);
  --nodo-bg: #0C0F23;
  --nodo-borde: rgba(255,255,255,.26);
  --nodo-icono: rgba(255,255,255,.85);
  
  --azul: #3360AA;
  --azul-claro: #449AD5;
  background: var(--bg);
  color: var(--texto);
}

#ia .wrap { max-width: 1180px; margin: 0 auto; }

#ia .eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  background: rgba(68,154,213,0.10); color: var(--azul-claro); border-radius: 22px;
  padding: 8px 16px; font-size: 12px; font-weight: 700; letter-spacing: 0.06em;
  text-transform: uppercase; margin-bottom: 18px;
}
#ia .eyebrow::before { content: "\f085"; font-family: "Font Awesome 6 Free"; font-weight: 900; }

#ia h2 {
  font-size: 40px; font-weight: 700; line-height: 1.08;
  color: var(--titulo); max-width: 20ch; margin: 0 0 18px;
}
#ia h2 em { font-style: normal; color: var(--azul-claro); }

#ia .intro {
  font-size: 15px; font-weight: 300; line-height: 1.7; color: rgba(255,255,255,0.68);
  max-width: 74ch; margin-bottom: 16px; text-wrap: pretty;
}
#ia .intro strong { font-weight: 500; color: var(--texto-fuerte); }

#ia h3 {
  font-size: 13px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
  color: rgba(255,255,255,0.55); margin-bottom: 18px; margin-top: 0;
}

#ia .sep { height: 1px; background: var(--linea); margin: 64px 0; }

/* ===== DIAGRAMA ===== */
#ia .diagrama {
  background: var(--bg-alt); border: 1px solid var(--linea-suave);
  border-radius: 16px; padding: 44px 44px 34px; margin-top: 52px;
}
#ia .diag-titulo {
  font-size: 10.5px; font-weight: 600; letter-spacing: .18em; text-transform: uppercase;
  color: var(--texto); opacity: .7; margin-bottom: 34px;
}
#ia .cadena { display: grid; grid-template-columns: repeat(6, 1fr); position: relative; }
#ia .riel {
  position: absolute; top: 25px; left: 8.33%; right: 8.33%; height: 1px;
  background: linear-gradient(90deg, var(--nodo-borde) 0%, var(--nodo-borde) 52%, var(--azul-claro) 70%, var(--azul-claro) 100%);
}
#ia .pulso {
  position: absolute; top: 22px; width: 7px; height: 7px; border-radius: 50%; margin-left: -3.5px;
  background: var(--azul-claro); box-shadow: 0 0 12px 3px rgba(68,154,213,.5);
  animation: correr-ia 4.8s cubic-bezier(.55,0,.45,1) infinite;
}
@keyframes correr-ia {
  0% { left: 8.33%; opacity: 0; }
  7% { opacity: 1; }
  86% { left: 91.66%; opacity: 1; }
  100% { left: 91.66%; opacity: 0; }
}
#ia .nodo { display: flex; flex-direction: column; align-items: center; text-align: center; }
#ia .bola {
  width: 50px; height: 50px; border-radius: 50%;
  background: var(--nodo-bg); border: 1px solid var(--nodo-borde);
  display: grid; place-items: center; margin-bottom: 14px;
}
#ia .bola svg { width: 20px; height: 20px; stroke: var(--nodo-icono); stroke-width: 1.4; fill: none; stroke-linecap: round; stroke-linejoin: round; }
#ia .nodo-etq { font-size: 12.5px; font-weight: 500; color: var(--texto-fuerte); line-height: 1.3; }
#ia .nodo-sub { font-size: 11px; font-weight: 300; color: var(--texto); opacity: .8; margin-top: 4px; }
#ia .nodo.ia .bola { background: var(--azul-claro); border-color: var(--azul-claro); box-shadow: 0 0 0 6px rgba(68,154,213,.13); }
#ia .nodo.ia .bola svg { stroke: #fff; stroke-width: 1.6; }
#ia .nodo.ia .nodo-etq { color: var(--azul-claro); font-weight: 600; }
#ia .nodo.accion .bola { border-color: var(--azul-claro); }

#ia .limite {
  display: flex; gap: 14px; align-items: flex-start;
  border-left: 2px solid var(--azul-claro); padding: 4px 0 4px 16px; margin-top: 36px;
  font-size: 13.5px; line-height: 1.6; color: var(--texto);
}
#ia .limite b { color: var(--texto-fuerte); font-weight: 600; }

/* ===== LISTAS DE SERVICIO ===== */
#ia .tres { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-top: 1px solid var(--linea); }
#ia .col { padding: 30px 30px 30px 0; border-right: 1px solid var(--linea); }
#ia .col:nth-child(2) { padding-left: 30px; }
#ia .col:nth-child(3) { padding-left: 30px; border-right: 0; padding-right: 0; }
#ia .col-donde {
  font-size: 10.5px; font-weight: 600; letter-spacing: .16em; text-transform: uppercase;
  color: var(--azul-claro); margin-bottom: 12px;
}
#ia .col-titulo { font-size: 17px; font-weight: 600; color: var(--titulo); line-height: 1.3; margin-bottom: 16px; }
#ia .col ul { list-style: none; padding: 0; margin: 0; }
#ia .col li {
  font-size: 13.5px; font-weight: 300; line-height: 1.55; color: var(--texto);
  padding-left: 16px; position: relative; margin-bottom: 10px;
}
#ia .col li::before { content: ""; position: absolute; left: 0; top: 9px; width: 6px; height: 1px; background: var(--azul-claro); }

/* ===== MARCO DE CONFIANZA ===== */
#ia .confianza {
  background: var(--bg-alt); border: 1px solid var(--linea-suave); border-radius: 16px;
  padding: 44px 44px 40px;
}
#ia .conf-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px 40px; }
#ia .conf-item h4 { font-size: 14.5px; font-weight: 600; color: var(--titulo); margin-bottom: 8px; margin-top: 0; }
#ia .conf-item p { font-size: 13px; font-weight: 300; line-height: 1.6; color: var(--texto); margin: 0; }

/* ===== TECNOLOGÍAS ===== */
#ia .tec-grupo { margin-bottom: 26px; }
#ia .tec-label { font-size: 12px; font-weight: 500; color: var(--texto-fuerte); margin-bottom: 12px; margin-top: 0; }
#ia .chips { display: flex; flex-wrap: wrap; gap: 9px; }
#ia .chip {
  font-size: 12.5px; font-weight: 400; color: var(--chip-txt);
  background: var(--chip-bg); border: 1px solid var(--linea-suave);
  padding: 8px 15px; border-radius: 6px;
}

/* ===== CÓMO EMPEZAMOS ===== */
#ia .pasos { display: grid; grid-template-columns: repeat(3, 1fr); gap: 34px; }
#ia .paso-num {
  font-size: 12px; font-weight: 600; color: var(--azul-claro);
  letter-spacing: .1em; margin-bottom: 14px; margin-top: 0;
  padding-bottom: 12px; border-bottom: 1px solid var(--linea);
}
#ia .paso h4 { font-size: 16px; font-weight: 600; color: var(--titulo); margin-bottom: 10px; margin-top: 0; line-height: 1.3; }
#ia .paso p { font-size: 13.5px; font-weight: 300; line-height: 1.62; color: var(--texto); margin: 0; }

/* ===== CTA ===== */
#ia .cta {
  display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap;
  border-top: 1px solid var(--linea); padding-top: 40px;
}
#ia .cta-txt { font-size: 17px; font-weight: 500; color: var(--titulo); max-width: 44ch; line-height: 1.45; margin: 0; }
#ia .btn {
  display: inline-block; background: var(--azul); color: #fff;
  font-family: inherit; font-size: 14.5px; font-weight: 500;
  padding: 15px 34px; border-radius: 999px; text-decoration: none; white-space: nowrap;
  transition: background .25s ease, transform .25s ease;
}
#ia .btn:hover { background: var(--azul-claro); transform: translateY(-2px); color: #fff; }

/* ===== RESPONSIVE ===== */
@media (max-width: 960px) {
  #ia .tres { grid-template-columns: 1fr; }
  #ia .col, #ia .col:nth-child(2), #ia .col:nth-child(3) {
    padding: 26px 0; border-right: 0; border-bottom: 1px solid var(--linea);
  }
  #ia .col:nth-child(3) { border-bottom: 0; }
  #ia .conf-grid { grid-template-columns: 1fr 1fr; }
  #ia .pasos { grid-template-columns: 1fr; gap: 28px; }
}
@media (max-width: 660px) {
  #ia { padding: 64px 20px 68px !important; }
  #ia .diagrama, #ia .confianza { padding: 30px 22px 26px; }
  #ia .cadena { grid-template-columns: 1fr; }
  #ia .riel {
    top: 0; bottom: 0; left: 25px; right: auto; width: 1px; height: auto;
    background: linear-gradient(180deg, var(--nodo-borde) 0%, var(--nodo-borde) 52%, var(--azul-claro) 70%, var(--azul-claro) 100%);
  }
  #ia .pulso { display: none; }
  #ia .nodo { flex-direction: row; align-items: center; gap: 16px; text-align: left; height: 70px; }
  #ia .bola { margin-bottom: 0; flex: 0 0 50px; }
  #ia .conf-grid { grid-template-columns: 1fr; }
  #ia .sep { margin: 48px 0; }
  #ia .btn { display: block; text-align: center; width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  #ia .pulso { animation: none; opacity: 0; }
}