/* Human in the Loop — estilos compartidos */
:root {
  color-scheme: light;
  --paper: #FAFBFD;
  --surface: #F1F4FA;
  --rule: #DFE5F0;
  --ink: #0A1A4F;
  --ink-soft: #4A5680;
  --signal: #1C7CF4;
  --teal: #18BFA0;
  --amber: #F2AE12;
  --coral: #E15B4E;
  --max: 1180px;
  --gutter: clamp(20px, 5vw, 56px);
  --font: "Urbanist", "Avenir Next", "Segoe UI", system-ui, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.6;
  font-weight: 450;
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--signal); outline-offset: 3px; border-radius: 4px; }

.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }

/* ---------- Tipografía: pesos contrastados, como el logotipo ---------- */
.display {
  font-size: clamp(2.4rem, 5.6vw, 4.4rem);
  line-height: 1.04;
  letter-spacing: -0.025em;
  margin: 0;
  max-width: 17ch;
}
.display b { font-weight: 800; display: block; }
.display span { font-weight: 300; display: block; }

h2 {
  font-size: clamp(1.75rem, 3.2vw, 2.5rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  font-weight: 800;
  margin: 0 0 0.6em;
  max-width: 22ch;
}
h2 span { font-weight: 300; }
h3 { font-size: 1.375rem; line-height: 1.25; font-weight: 700; margin: 0 0 0.4em; letter-spacing: -0.01em; }
p { margin: 0 0 1em; max-width: 62ch; }
.lead { font-size: clamp(1.125rem, 1.6vw, 1.3rem); color: var(--ink-soft); line-height: 1.55; }
.muted { color: var(--ink-soft); }

/* ---------- Encabezado ---------- */
.site-header {
  position: sticky; top: 0; z-index: 20;
  background: rgba(250, 251, 253, 0.88);
  backdrop-filter: saturate(1.4) blur(10px);
  -webkit-backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s;
}
.site-header.scrolled { border-bottom-color: var(--rule); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 84px; gap: 24px; }
.brand img { height: 50px; width: auto; }
.menu { display: flex; align-items: center; gap: clamp(16px, 3vw, 36px); list-style: none; margin: 0; padding: 0; }
.menu a { text-decoration: none; font-weight: 600; font-size: 1rem; position: relative; padding: 6px 0; }
.menu a.navlink::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 2px;
  background: var(--dot, var(--signal)); transform: scaleX(0); transform-origin: left; transition: transform .2s;
}
.menu a.navlink:hover::after, .menu a[aria-current="page"]::after { transform: scaleX(1); }
.menu .academy { --dot: var(--amber); }
.menu .enterprise { --dot: var(--signal); }
.menu .dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--dot); margin-right: 8px; vertical-align: 1px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  font: inherit; font-weight: 700; font-size: 1rem; text-decoration: none;
  padding: 13px 24px; border-radius: 999px; border: 1.5px solid var(--ink);
  background: var(--ink); color: #fff; cursor: pointer; transition: background .15s, color .15s;
}
.btn:hover { background: #142a72; border-color: #142a72; }
.btn.ghost { background: transparent; color: var(--ink); }
.btn.ghost:hover { background: var(--ink); color: #fff; }
.menu .btn { padding: 9px 20px; color: #fff; }
.menu .btn:hover { color: #fff; }

.menu-toggle { display: none; background: none; border: 0; padding: 8px; cursor: pointer; color: var(--ink); }
.menu-toggle svg { width: 26px; height: 26px; }

@media (max-width: 760px) {
  .brand img { height: 38px; }
  .menu-toggle { display: block; }
  .menu {
    position: absolute; top: 84px; left: 0; right: 0;
    flex-direction: column; align-items: flex-start; gap: 4px;
    background: var(--paper); border-bottom: 1px solid var(--rule);
    padding: 12px var(--gutter) 24px; display: none;
  }
  .menu.open { display: flex; }
  .menu li { width: 100%; }
  .menu a.navlink { display: block; padding: 12px 0; font-size: 1.15rem; }
  .menu .btn { margin-top: 10px; }
}

/* ---------- Héroe ---------- */
.hero { padding: clamp(48px, 9vw, 112px) 0 clamp(56px, 8vw, 104px); }
.hero-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: clamp(32px, 5vw, 72px); align-items: center; }
.hero .lead { margin-top: 28px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }
@media (max-width: 900px) { .hero-grid { grid-template-columns: 1fr; } }

/* Diagrama del ciclo */
.loop { width: 100%; height: auto; overflow: visible; }
.loop .track { fill: none; stroke: var(--rule); stroke-width: 2; }
.loop .flow { fill: none; stroke: url(#flowGrad); stroke-width: 2; stroke-dasharray: 6 10; }
.loop .wire { fill: none; stroke-width: 1.2; opacity: .55; }
.loop text.l { text-anchor: end; }
.loop text.r { text-anchor: start; }
.loop text { font-family: var(--font); font-size: 18px; font-weight: 600; fill: var(--ink); }
.loop text.sub { font-size: 14.5px; font-weight: 500; fill: var(--ink-soft); }
.loop .human-ring { fill: none; stroke: var(--amber); stroke-width: 1.5; opacity: .5; }

/* Héroe de subpáginas */
.page-hero { padding: clamp(56px, 9vw, 112px) 0 clamp(40px, 6vw, 72px); border-bottom: 1px solid var(--rule); }
.page-hero .tag { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.05rem; margin-bottom: 28px; }
.page-hero .tag i { width: 12px; height: 12px; border-radius: 50%; background: var(--dot); box-shadow: 0 0 0 5px color-mix(in srgb, var(--dot) 20%, transparent); }

/* ---------- Secciones ---------- */
.section { padding: clamp(64px, 9vw, 120px) 0; }
.section + .section { border-top: 1px solid var(--rule); }
.section-head { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: end; margin-bottom: clamp(36px, 5vw, 64px); }
.section-head p { margin: 0; }
@media (max-width: 800px) { .section-head { grid-template-columns: 1fr; } }

/* Dos caminos (inicio) */
.paths { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }
.path { padding: clamp(36px, 5vw, 64px) clamp(0px, 4vw, 56px) clamp(36px, 5vw, 64px) 0; display: flex; flex-direction: column; }
.path + .path { border-left: 1px solid var(--rule); padding-left: clamp(24px, 4vw, 56px); padding-right: 0; }
.path .name { font-size: clamp(1.9rem, 3.4vw, 2.6rem); font-weight: 800; letter-spacing: -0.02em; line-height: 1; margin: 0 0 6px; }
.path .name span { font-weight: 300; }
.path .for { font-weight: 600; color: var(--ink-soft); margin-bottom: 22px; }
.path ul { list-style: none; padding: 0; margin: 8px 0 32px; }
.path li { padding: 10px 0; border-top: 1px solid var(--rule); font-weight: 600; display: flex; align-items: center; gap: 12px; }
.path li:last-child { border-bottom: 1px solid var(--rule); }
.path .btn { margin-top: auto; align-self: flex-start; }
@media (max-width: 800px) {
  .paths { grid-template-columns: 1fr; }
  .path, .path + .path { padding: 40px 0; border-left: 0; }
  .path + .path { border-top: 1px solid var(--rule); }
}

/* Nodo de color: identifica cada disciplina en todo el sitio */
.node { flex: none; width: 10px; height: 10px; border-radius: 50%; background: var(--c, var(--signal)); }
.c-data { --c: var(--signal); }
.c-ml { --c: var(--teal); }
.c-ops { --c: var(--amber); }
.c-agents { --c: var(--coral); }

/* Principios */
.principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(24px, 4vw, 56px); }
.principles h3 { font-size: 1.25rem; }
.principles p { color: var(--ink-soft); margin: 0; }
@media (max-width: 800px) { .principles { grid-template-columns: 1fr; } }

/* Filas de servicios / programas */
.rows { border-top: 1px solid var(--ink); }
.row { display: grid; grid-template-columns: 280px 1fr 300px; gap: clamp(20px, 3vw, 48px); padding: clamp(28px, 3.5vw, 44px) 0; border-bottom: 1px solid var(--rule); }
.row h3 { display: flex; align-items: center; gap: 14px; margin: 0; align-self: start; }
.row p { margin: 0; color: var(--ink-soft); }
.row .meta { font-size: .95rem; }
.row .meta strong { display: block; font-weight: 700; margin-bottom: 6px; }
.row .meta ul { margin: 0; padding: 0 0 0 18px; color: var(--ink-soft); }
.row .meta li { margin: 2px 0; }
@media (max-width: 960px) { .row { grid-template-columns: 1fr; gap: 12px; } }

/* Proceso (secuencia real) */
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); counter-reset: step; position: relative; }
.steps li { counter-increment: step; padding: 0 24px 0 0; position: relative; }
.steps li::before {
  content: counter(step); display: grid; place-items: center;
  width: 40px; height: 40px; border-radius: 50%; border: 1.5px solid var(--ink);
  font-weight: 800; margin-bottom: 22px; background: var(--paper); position: relative; z-index: 1;
}
.steps::before { content: ""; position: absolute; top: 20px; left: 20px; right: 20%; height: 1.5px; background: var(--rule); }
.steps h3 { font-size: 1.2rem; }
.steps p { color: var(--ink-soft); font-size: 1rem; margin: 0; }
@media (max-width: 900px) {
  .steps { grid-template-columns: 1fr; gap: 32px; }
  .steps::before { top: 20px; bottom: 20px; left: 20px; right: auto; width: 1.5px; height: auto; }
  .steps li { padding: 0 0 0 64px; }
  .steps li::before { position: absolute; left: 0; top: -6px; margin: 0; }
}

/* Formatos (academy) */
.formats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-top: 1px solid var(--rule); }
.formats > div { padding: 32px 32px 8px 0; }
.formats > div + div { padding-left: 32px; border-left: 1px solid var(--rule); }
.formats p { color: var(--ink-soft); }
@media (max-width: 800px) {
  .formats { grid-template-columns: 1fr; }
  .formats > div, .formats > div + div { padding: 28px 0 4px; border-left: 0; }
  .formats > div + div { border-top: 1px solid var(--rule); }
}
.level { display: inline-block; font-size: .85rem; font-weight: 700; padding: 3px 12px; border-radius: 999px; background: var(--surface); color: var(--ink); margin-top: 12px; }

/* Llamado a la acción */
.cta { background: var(--surface); }
.cta-inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 28px 48px; align-items: center; padding-top: clamp(56px, 8vw, 96px); padding-bottom: clamp(56px, 8vw, 96px); }
.cta-inner > div { max-width: 640px; }
.cta h2 { margin: 0; }

/* ---------- Pie de página ---------- */
.site-footer { background: var(--ink); color: #fff; padding: clamp(56px, 7vw, 88px) 0 32px; }
.footer-grid { display: grid; grid-template-columns: auto 1fr auto; gap: clamp(28px, 5vw, 72px); align-items: start; }
.footer-icon { width: 150px; height: auto; }
.footer-contact h2 { color: #fff; font-size: clamp(1.5rem, 2.6vw, 2rem); margin-bottom: 18px; }
.footer-contact a { display: block; color: #fff; text-decoration: none; font-size: clamp(1.1rem, 1.8vw, 1.35rem); font-weight: 600; padding: 4px 0; width: fit-content; }
.footer-contact a:hover { color: #8FC2FF; }
.footer-contact small { display: block; color: #A9B3D6; font-size: .9rem; font-weight: 500; }
.footer-nav { list-style: none; margin: 0; padding: 0; }
.footer-nav a { color: #C9D1EE; text-decoration: none; font-weight: 600; display: block; padding: 5px 0; }
.footer-nav a:hover { color: #fff; }
.footer-bottom { margin-top: 56px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.14); color: #A9B3D6; font-size: .9rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.site-footer :focus-visible { outline-color: #8FC2FF; }
@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr; } .footer-icon { width: 96px; } }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}