/* ============================================================
   ReturnAI — CSS específico de página (vitrina de soluciones)
   Carga DESPUÉS de styles.css / 4 / 5 / 6 / modelo-aria.
   Solo componentes propios de esta página. Tokens, .btn, .nav,
   .footer, .card, .label, .chapeau, .section, .wrap, .badge,
   .section-nav, .fullbleed ya existen.
   ============================================================ */

/* ============================================================
   S1 — HERO (2 columnas: copy 70 / métricas 30)
   ============================================================ */
/* Las etiquetas de botón nunca se parten en esta página */
.rai .btn { white-space: nowrap; }

.rai-hero { padding: 176px 0 104px; text-align: left; }
.rai-hero .hero__inner { max-width: var(--maxw); padding: 0 40px; }
.rai-hero__grid { display: grid; grid-template-columns: 1.55fr 0.9fr; gap: 72px; align-items: start; }
.rai-hero .hero__eyebrow { margin-bottom: 24px; }
.rai-hero h1 { margin: 0; }
.rai-hero h1 .line { display: block; }
.rai-hero .chapeau { text-align: left; max-width: 640px; margin: 30px 0 0; }

/* Tarjeta de métricas (platino, separadores teal) */
.rai-metrics {
  background: var(--platinum);
  border-radius: 16px;
  padding: 14px 40px;
  position: relative;
}
.rai-metrics::before {
  content: ""; position: absolute; left: 0; top: 28px; bottom: 28px; width: 3px;
  background: var(--teal); border-radius: 0 3px 3px 0;
}
.rai-metric { padding: 30px 0; border-top: 1px solid var(--teal-light); }
.rai-metric:first-child { border-top: 0; }
.rai-metric b {
  display: block; font-family: var(--display); font-weight: 400; line-height: 1;
  font-size: clamp(48px, 4.4vw, 60px); color: var(--teal);
}
.rai-metric b .suffix { color: var(--gold); }
.rai-metric > span {
  display: block; margin-top: 10px; font-size: 13px; font-weight: 500;
  letter-spacing: 0.08em; text-transform: uppercase; color: rgba(30,42,56,0.72);
}

@media (max-width: 980px) {
  .rai-hero { padding: 128px 0 64px; }
  .rai-hero__grid { grid-template-columns: 1fr; gap: 44px; }
  .rai-metrics { padding: 8px 32px; }
  .rai-metric { padding: 24px 0; }
}

/* Banda fotográfica con velo teal 10% */
.rai-band .fullbleed__frame { position: relative; }
.rai-band__veil {
  position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background: rgba(46,139,118,0.10);
}

/* ============================================================
   S2 — LA LÓGICA DEL SISTEMA (3 etapas con conector)
   ============================================================ */
.logic { display: grid; grid-template-columns: 1fr 56px 1fr 56px 1fr; align-items: stretch; }
.stage {
  background: var(--white); border: 1px solid var(--border); border-radius: 14px;
  padding: 36px 34px; display: flex; flex-direction: column;
  box-shadow: 0 2px 14px rgba(30,42,56,0.05);
}
.stage__top { display: flex; align-items: center; gap: 14px; margin-bottom: 20px; }
.stage__num { font-family: var(--display); font-size: 34px; line-height: 1; color: var(--teal-light); }
.badge--carbon { background: #e7eaee; color: var(--carbon); border: 1px solid var(--carbon); }
.stage h3 { font-family: var(--display); font-weight: 400; font-size: 23px; line-height: 1.3; margin-bottom: 14px; }
.stage p { font-size: 15.5px; color: var(--carbon-70); }

/* Conector animado (flecha que se dibuja) */
.logic__arrow { display: grid; place-items: center; }
.logic__arrow svg { width: 100%; height: 26px; overflow: visible; }
.logic__arrow path { fill: none; stroke: var(--teal); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.logic__arrow .ln {
  stroke-dasharray: 60; stroke-dashoffset: 60;
  transition: stroke-dashoffset 0.7s var(--ease, ease) 0.15s;
}
.logic__arrow .hd {
  stroke-dasharray: 16; stroke-dashoffset: 16;
  transition: stroke-dashoffset 0.35s var(--ease, ease) 0.7s;
}
.logic.in .logic__arrow .ln,
.logic.in .logic__arrow .hd { stroke-dashoffset: 0; }

@media (max-width: 920px) {
  .logic { grid-template-columns: 1fr; gap: 0; }
  .logic__arrow { padding: 14px 0; }
  .logic__arrow svg { width: 26px; height: 34px; transform: rotate(90deg); }
}

/* ============================================================
   S3 — PORTAFOLIO DE SOLUCIONES (grupos + cards)
   ============================================================ */
.sol-group + .sol-group { margin-top: 64px; }
.sol-group__head { display: flex; align-items: center; gap: 14px; margin-bottom: 30px; }
.sol-group__head .label { margin: 0; }
.sol-group__rule { flex: 1; height: 1px; background: var(--border); }

.sol-grid { display: grid; gap: 24px; }
.sol-grid--2 { grid-template-columns: 1fr 1fr; }
.sol-grid--3 { grid-template-columns: repeat(3, 1fr); }

.sol-card {
  background: var(--white); border: 1px solid var(--border); border-radius: 14px;
  padding: 34px 34px 30px; display: flex; flex-direction: column;
  box-shadow: 0 2px 14px rgba(30,42,56,0.05);
  transition: transform 0.4s var(--ease, ease), box-shadow 0.4s var(--ease, ease), border-color 0.4s var(--ease, ease);
}
.sol-card:hover { transform: translateY(-6px); box-shadow: 0 22px 54px rgba(30,42,56,0.12); border-color: var(--teal-light); }
.sol-card__name { font-family: var(--display); font-weight: 400; font-size: 26px; line-height: 1.25; margin-bottom: 16px; }
.sol-card__price-lbl { font-size: 11.5px; font-weight: 600; letter-spacing: 0.09em; text-transform: uppercase; color: rgba(30,42,56,0.62); display: block; margin-bottom: 5px; }
.sol-card__price { font-size: 21px; font-weight: 600; color: var(--carbon); line-height: 1.35; }
.sol-card__price .sub { display: block; font-size: 13.5px; font-weight: 500; color: var(--carbon-55); letter-spacing: 0.01em; margin-top: 3px; }
.sol-card__price.free { color: var(--teal); }
.sol-card__role { font-style: italic; font-size: 15px; color: #5a6472; margin: 16px 0 0; }
.sol-card__body { font-size: 15.5px; line-height: 1.6; color: var(--carbon-70); margin: 14px 0 26px; }
.sol-card__cta {
  margin-top: auto; align-self: flex-start; display: inline-flex; align-items: center; gap: 9px;
  font-size: 14.5px; font-weight: 600; color: var(--teal); text-decoration: none; white-space: nowrap;
}
.sol-card__cta .arrow { transition: transform 0.3s var(--ease, ease); }
.sol-card:hover .sol-card__cta .arrow { transform: translateX(5px); }

/* Card flagship (Grupo 3 · oro) */
.sol-flagship {
  max-width: 920px; margin: 0 auto;
  border: 3px solid var(--gold); border-radius: 16px;
  background: var(--teal-05);
  padding: 48px 52px;
  display: grid; grid-template-columns: 1.35fr 1fr; gap: 48px; align-items: center;
  box-shadow: 0 18px 50px rgba(30,42,56,0.08);
}
.sol-flagship .sol-card__name { font-size: 32px; margin-bottom: 18px; }
.sol-flagship .sol-card__body { margin-bottom: 0; font-size: 16px; }
.sol-flagship__aside { border-left: 1px solid var(--teal-light); padding-left: 44px; }
.sol-flagship .sol-card__price { font-size: 26px; }
.sol-flagship .btn { margin-top: 26px; }

@media (max-width: 980px) {
  .sol-grid--2, .sol-grid--3 { grid-template-columns: 1fr; }
  .sol-flagship { grid-template-columns: 1fr; gap: 32px; padding: 38px 32px; }
  .sol-flagship__aside { border-left: 0; border-top: 1px solid var(--teal-light); padding-left: 0; padding-top: 30px; }
}

/* ============================================================
   S4 — BUQUE INSIGNIA · timeline de 6 sprints (spine animada)
   ============================================================ */
.rai-flagship-lead { max-width: 760px; }
.rai-timeline { position: relative; max-width: 940px; margin: 8px 0 0; }
.rai-timeline::before {
  content: ""; position: absolute; left: 31px; top: 18px; bottom: 18px; width: 2px;
  background: var(--teal-light);
}
.rai-timeline__fill {
  position: absolute; left: 31px; top: 18px; width: 2px; height: calc(100% - 36px);
  background: var(--teal); transform: scaleY(0); transform-origin: top;
  transition: transform 1.5s var(--ease-smooth, cubic-bezier(0.4,0,0.2,1)) 0.1s;
}
.rai-timeline.in .rai-timeline__fill { transform: scaleY(1); }

.tl-item { position: relative; display: grid; grid-template-columns: 64px 1fr; gap: 30px; padding: 0 0 46px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-node {
  position: relative; z-index: 1; width: 64px; height: 64px; border-radius: 50%;
  display: grid; place-items: center; flex: none;
  font-family: var(--display); font-size: 23px; color: var(--teal);
  background: var(--white); border: 2px solid var(--teal-light);
  box-shadow: 0 0 0 6px var(--white);
}
.tl-item.in .tl-node { border-color: var(--teal); }
.tl-body { padding-top: 5px; }
.tl-days {
  display: inline-block; white-space: nowrap; font-size: 11.5px; font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--teal);
  padding: 5px 13px; border: 1px solid var(--teal-light); border-radius: 100px;
  background: var(--teal-05); margin-bottom: 14px;
}
.tl-title { font-family: var(--display); font-weight: 400; font-size: clamp(22px, 2vw, 27px); line-height: 1.3; margin-bottom: 10px; }
.tl-desc { font-size: 16px; line-height: 1.6; color: var(--carbon-70); max-width: 640px; }

.rai-flagship-close {
  margin-top: 44px; max-width: 760px; padding: 24px 28px;
  border-left: 4px solid var(--gold); background: var(--teal-05); border-radius: 0 8px 8px 0;
  font-size: 16.5px; line-height: 1.6; color: var(--carbon);
}

@media (max-width: 880px) {
  .rai-timeline::before, .rai-timeline__fill { left: 26px; }
  .tl-item { grid-template-columns: 52px 1fr; gap: 22px; padding-bottom: 38px; }
  .tl-node { width: 52px; height: 52px; font-size: 19px; }
}

/* ============================================================
   S5.5 — PRUEBA SECTORIAL con KPI ancla por industria
   ============================================================ */
.rai .industries-grid div {
  display: flex; flex-direction: column; gap: 5px;
  padding: 18px 20px; border-radius: 10px;
  border: 1px solid rgba(30,42,56,0.08);
  transition: border-color 0.2s, background 0.2s;
}
.rai .industries-grid div:hover {
  border-color: rgba(46,139,118,0.35); background: rgba(46,139,118,0.03);
}
.ind-name {
  font-size: 15px; font-weight: 600; color: var(--carbon);
}
.ind-kpi {
  font-size: 12.5px; color: var(--carbon-55); line-height: 1.45;
}
.proof__footer {
  display: flex; align-items: center; gap: 14px;
  font-size: 13.5px; color: var(--carbon-55);
}
.proof__cta {
  font-size: 13.5px; font-weight: 600; color: var(--teal);
  text-decoration: none; display: inline-flex; align-items: center; gap: 6px;
  transition: gap 0.2s;
}
.proof__cta:hover { gap: 10px; }

/* ============================================================
   S5 — GARANTÍA (fondo carbón · stat cards)
   ============================================================ */
.bg-carbon .label.on-carbon { color: #6fc3ad; }
.guarantee-body { max-width: 720px; }
.guarantee-body p { color: rgba(255,255,255,0.85); font-size: 17.5px; line-height: 1.65; }
.guarantee-body p + p { margin-top: 20px; }
.guarantee-body b { color: #fff; font-weight: 600; }

.guarantee-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 52px; }
.gstat {
  background: #243040; border: 1px solid rgba(255,255,255,0.08); border-radius: 14px;
  padding: 34px 32px;
}
.gstat__num { font-family: var(--display); font-weight: 400; line-height: 1; font-size: clamp(38px, 4vw, 54px); color: #fff; }
.gstat__num .suffix { color: var(--gold); }
.gstat__num.teal { color: #6fc3ad; }
.gstat__lbl { margin-top: 14px; font-size: 14px; line-height: 1.5; color: rgba(255,255,255,0.7); }

@media (max-width: 760px) {
  .guarantee-stats { grid-template-columns: 1fr; gap: 16px; }
}

/* ============================================================
   S3.5 — SIGNPOST (orientador 3 etapas antes de escalera de valor)
   ============================================================ */
.signpost {
  display: flex; align-items: center; gap: 0;
  justify-content: center; flex-wrap: wrap;
}
.signpost__item {
  display: flex; flex-direction: column; align-items: center; text-align: center;
  gap: 14px; max-width: 260px; padding: 0 24px;
}
.signpost__num {
  font-family: var(--display); font-size: 40px; font-weight: 400;
  color: var(--platinum-dark, #d8d8d8); line-height: 1;
}
.signpost__item p {
  font-size: 14.5px; color: var(--carbon-70); line-height: 1.55; margin: 0;
}
.signpost__arrow {
  flex-shrink: 0; padding: 0 8px;
}
.signpost__arrow svg {
  width: 48px; height: 22px; stroke: var(--teal); stroke-width: 1.5;
  fill: none; stroke-linecap: round; opacity: 0.45;
}
.signpost__link {
  text-align: center; margin-top: 40px;
  font-size: 14px; color: var(--carbon-55);
}
.signpost__link a { color: var(--teal); text-decoration: none; font-weight: 500; }
.signpost__link a:hover { text-decoration: underline; }

@media (max-width: 720px) {
  .signpost { flex-direction: column; gap: 24px; }
  .signpost__arrow { transform: rotate(90deg); }
  .signpost__item { max-width: 100%; padding: 0; }
}

/* ============================================================
   S5 — ROI CASE (reemplaza exhibit de barras)
   ============================================================ */
.roi-case {
  background: #fff; border: 1px solid rgba(30,42,56,0.09); border-radius: 14px;
  padding: 36px 32px;
}
.roi-case__flow {
  display: flex; align-items: center; flex-wrap: wrap; gap: 8px 0;
  justify-content: space-between; margin-bottom: 28px;
}
.roi-case__step { text-align: center; flex: 1 1 80px; }
.roi-case__val {
  font-family: var(--display); font-size: clamp(22px, 2.4vw, 30px); font-weight: 400;
  line-height: 1; color: var(--carbon);
}
.roi-case__val.accent { color: var(--gold); }
.roi-case__val.teal  { color: var(--teal); }
.roi-case__step--dim .roi-case__val { opacity: 0.45; }
.roi-case__cap { font-size: 12px; color: #8b94a0; letter-spacing: 0.06em; margin-top: 6px; }
.roi-case__arrow { color: rgba(30,42,56,0.25); font-size: 18px; flex-shrink: 0; padding: 0 4px; }
.roi-case__quote {
  font-size: 16px; font-style: italic; color: var(--carbon-70);
  border-left: 3px solid var(--teal); padding-left: 18px; margin: 0 0 10px;
  line-height: 1.6;
}
.roi-case__cite { font-size: 13px; color: var(--carbon-55); }

@media (max-width: 640px) {
  .roi-case__flow { gap: 14px 0; justify-content: center; }
  .roi-case__arrow { display: none; }
  .roi-case__step { flex: 0 0 calc(50% - 8px); }
}

/* Entregable en comp-card */
.comp-deliver {
  margin-top: 14px; font-size: 13px; color: var(--carbon-55);
  border-top: 1px solid rgba(30,42,56,0.09); padding-top: 12px;
}
.comp-deliver .k { font-weight: 600; color: var(--teal); margin-right: 6px; }

/* ============================================================
   S6 — CTA FINAL
   ============================================================ */
.rai-cta { text-align: center; }
.rai-cta .label { display: block; margin-bottom: 20px; }
.rai-cta__wrap { max-width: 660px; margin: 0 auto; }
.rai-cta h2 { margin-bottom: 24px; }
.rai-cta__body { color: var(--carbon-70); font-size: 17px; max-width: 600px; margin: 0 auto 40px; }
.rai-cta__note { margin-top: 20px; font-size: 14px; color: var(--carbon-55); }
.rai-cta__alt { display: block; margin-top: 26px; font-size: 13.5px; color: #5a6472; text-decoration: none; }
.rai-cta__alt:hover { color: var(--teal); }
.rai-cta__alt .arrow { color: var(--teal); }

@media (max-width: 560px) {
  .rai-cta .btn--lg { width: 100%; justify-content: center; }
}

/* Hero credentials — números en oro (vs. teal en /modelo-aria) */
.mra-hero .hero__cred b { color: var(--gold); }

/* ============================================================
   READING PANEL — Preludio de la novela ReturnAI
   Slide-in desde la derecha. Fondo carbón, experiencia
   de lectura nocturna ejecutiva.
   ============================================================ */
.preludio-panel {
  position: fixed; inset: 0; z-index: 1200;
  display: flex; justify-content: flex-end;
  visibility: hidden; pointer-events: none;
}
.preludio-panel:not([hidden]) { visibility: visible; pointer-events: auto; }

.preludio-panel__backdrop {
  position: absolute; inset: 0;
  background: rgba(30,42,56,0.65);
  opacity: 0; transition: opacity 0.35s ease;
}
.preludio-panel.is-open .preludio-panel__backdrop { opacity: 1; }

.preludio-panel__drawer {
  position: relative; width: min(620px, 92vw);
  background: var(--carbon); height: 100vh; overflow-y: auto;
  transform: translateX(100%);
  transition: transform 0.42s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex; flex-direction: column;
  scrollbar-width: thin; scrollbar-color: rgba(255,255,255,0.15) transparent;
}
.preludio-panel.is-open .preludio-panel__drawer { transform: translateX(0); }

.preludio-panel__close {
  position: sticky; top: 0; align-self: flex-end;
  background: transparent; border: none; cursor: pointer;
  color: rgba(255,255,255,0.5); font-size: 28px; line-height: 1;
  padding: 20px 24px 0; z-index: 10; transition: color 0.2s;
}
.preludio-panel__close:hover { color: #fff; }

.preludio-panel__inner { padding: 0 48px 64px; }

.preludio-panel__header { margin-bottom: 40px; }
.preludio-panel__tag {
  display: inline-block; font-family: var(--body); font-size: 11px;
  font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--teal); border: 1px solid rgba(46,139,118,0.4);
  border-radius: 4px; padding: 4px 10px; margin-bottom: 16px;
}
.preludio-panel__title {
  font-family: var(--display); font-weight: 400;
  font-size: clamp(22px, 2vw, 28px); color: #fff;
  line-height: 1.25; margin: 0 0 12px;
}
.preludio-panel__date {
  display: block; font-size: 13px; color: rgba(255,255,255,0.4);
  letter-spacing: 0.04em;
}

.preludio-panel__body p {
  font-family: var(--body); font-size: 15.5px; font-weight: 400;
  color: rgba(255,255,255,0.78); line-height: 1.78; margin: 0 0 20px;
}
.preludio-panel__quote {
  border-left: 3px solid var(--gold);
  padding-left: 20px; margin-left: 0;
  color: rgba(255,255,255,0.9) !important;
  font-style: italic;
}
.preludio-panel__emphasis {
  color: rgba(255,255,255,0.95) !important;
  font-weight: 600 !important;
}
.preludio-panel__countdown {
  font-family: var(--display) !important; font-size: 18px !important;
  color: rgba(255,255,255,0.5) !important; line-height: 1.9 !important;
  letter-spacing: 0.02em;
}
.preludio-panel__closing {
  font-family: var(--display) !important; font-size: 19px !important;
  color: #fff !important; line-height: 1.5 !important; margin-top: 32px !important;
}
.preludio-panel__closing strong { color: var(--gold); font-weight: 400; font-family: var(--display); }
.preludio-panel__list {
  padding-left: 20px; margin: 0 0 20px;
}
.preludio-panel__list li {
  font-size: 15.5px; color: rgba(255,255,255,0.78);
  line-height: 1.78; margin-bottom: 8px;
}
.preludio-panel__list li::marker { color: var(--teal); }

.preludio-panel__cta {
  margin-top: 48px; padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.1);
}
.preludio-panel__cta p {
  font-size: 14.5px; color: rgba(255,255,255,0.6);
  line-height: 1.65; margin-bottom: 24px;
}

@media (prefers-reduced-motion: reduce) {
  .preludio-panel__drawer { transition: none; }
  .preludio-panel__backdrop { transition: none; }
}
@media (max-width: 560px) {
  .preludio-panel__inner { padding: 0 24px 48px; }
  .preludio-panel__close { padding: 16px 16px 0; }
}

/* Hero /returnai — columna de texto más amplia + H1 mayor que /modelo-aria
   La columna 1.25fr da ~710px a 1200px container; soporta las 36 chars
   de la línea más larga a 34px sin quiebre. */
#top .hero-split { grid-template-columns: 1.25fr 0.75fr; }
#top h1 { font-size: clamp(24px, 2.6vw, 34px); }