/* ==========================================================
   INGENIO · Landing
   Paleta y tipografía según Manual de Marca
   ========================================================== */
/* Metropolis (fuente de cuerpo del manual), incluida en el proyecto */
@font-face {
  font-family: "Metropolis"; font-style: normal; font-weight: 400; font-display: swap;
  src: url("assets/fonts/metropolis-400.woff2") format("woff2");
}
@font-face {
  font-family: "Metropolis"; font-style: normal; font-weight: 600; font-display: swap;
  src: url("assets/fonts/metropolis-600.woff2") format("woff2");
}

:root {
  --indigo: #3C3489;   /* ancla: isotipo, piezas institucionales */
  --amber:  #EF9F27;   /* acción: botones, CTAs, destacados */
  --teal:   #1D9E75;   /* secundario: diferenciar áreas */
  --gray:   #5F5E5A;   /* texto de cuerpo */

  --indigo-900: #26205E;
  --indigo-50:  #F1F0F9;
  --amber-600:  #D9861A;
  --ink: #16151A;
  --bg: #FFFFFF;
  --bg-soft: #F7F6F3;
  --line: #E7E5DF;

  --f-title: "Poppins", system-ui, sans-serif;
  --f-body: "Metropolis", "Poppins", system-ui, -apple-system, "Segoe UI", sans-serif;

  --radius: 18px;
  --shadow: 0 1px 2px rgba(22, 21, 26, .04), 0 8px 24px rgba(60, 52, 137, .08);
  --max: 1160px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  margin: 0;
  font-family: var(--f-body);
  font-size: 17px;
  line-height: 1.65;
  color: var(--gray);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { font-family: var(--f-title); font-weight: 700; color: var(--ink); line-height: 1.15; margin: 0 0 .5em; letter-spacing: -.01em; }
h1 { font-size: clamp(2.3rem, 5vw, 3.7rem); }
h2 { font-size: clamp(1.8rem, 3.4vw, 2.6rem); }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1em; }
strong { color: var(--ink); font-weight: 600; }

.container { width: min(100% - 2.5rem, var(--max)); margin-inline: auto; }

/* ---------- Utilidades ---------- */
.eyebrow {
  font-family: var(--f-body);
  font-weight: 600;
  font-size: .8rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--indigo);
  margin-bottom: 1rem;
  display: inline-flex; align-items: center; gap: .6rem;
}
.eyebrow::before { content: ""; width: 26px; height: 4px; border-radius: 2px; background: var(--amber); }
.eyebrow--teal { color: var(--teal); }
.eyebrow--teal::before { background: var(--teal); }
.eyebrow--amber { color: var(--amber); }

.lead { font-size: 1.15rem; max-width: 60ch; }
.lead--muted { color: var(--gray); }
.hl { color: var(--indigo); }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  font-family: var(--f-title); font-weight: 600; font-size: 1rem;
  padding: .9rem 1.6rem; border-radius: 999px; border: 2px solid transparent;
  cursor: pointer; transition: transform .2s, background .2s, box-shadow .2s, color .2s;
}
.btn--amber { background: var(--amber); color: var(--ink); }
.btn--amber:hover { background: var(--amber-600); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(239, 159, 39, .35); }
.btn--ghost { border-color: var(--indigo); color: var(--indigo); }
.btn--ghost:hover { background: var(--indigo); color: #fff; }
.btn--sm { padding: .55rem 1.2rem; font-size: .92rem; }
.btn--block { width: 100%; }

.link { font-family: var(--f-title); font-weight: 600; color: var(--indigo); }
.link:hover { color: var(--amber-600); }

/* ---------- NAV ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .85);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s, box-shadow .3s;
}
.nav.is-scrolled { border-color: var(--line); box-shadow: 0 4px 20px rgba(22, 21, 26, .04); }
.nav__inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }

.brand { display: flex; align-items: center; gap: .65rem; }
.brand__iso { width: 40px; height: 40px; }
.brand__word { font-family: var(--f-title); font-weight: 700; font-size: 1.45rem; color: var(--ink); letter-spacing: .01em; }
.brand__word .in { color: var(--indigo); }
.brand__word--light { color: #fff; }
.brand__word--light .in { color: var(--amber); }

.nav__links { display: flex; align-items: center; gap: 2rem; }
.nav__links a:not(.btn) { font-weight: 600; font-size: .95rem; color: var(--ink); position: relative; }
.nav__links a:not(.btn)::after {
  content: ""; position: absolute; left: 0; bottom: -6px; height: 2px; width: 0;
  background: var(--amber); transition: width .25s;
}
.nav__links a:not(.btn):hover::after { width: 100%; }

.nav__toggle { display: none; background: none; border: 0; width: 44px; height: 44px; cursor: pointer; padding: 10px; }
.nav__toggle span { display: block; height: 2px; background: var(--ink); margin: 5px 0; border-radius: 2px; transition: transform .3s, opacity .3s; }
.nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Elementos gráficos de marca ---------- */
.contours { position: absolute; fill: none; stroke: #CFCDC6; stroke-width: 1; pointer-events: none; }
.dots {
  position: absolute; width: 96px; height: 96px; pointer-events: none;
  background-image: radial-gradient(currentColor 1.6px, transparent 1.8px);
  background-size: 16px 16px;
}

/* ---------- HERO ---------- */
.hero { position: relative; overflow: hidden; padding: clamp(3.5rem, 9vw, 7rem) 0 clamp(4rem, 9vw, 7rem); }
.hero::after { /* barra ámbar de marca */
  content: ""; position: absolute; left: 0; bottom: 0; width: min(220px, 30vw); height: 14px; background: var(--amber);
}
.hero .contours { width: 640px; left: -180px; top: -60px; opacity: .8; }
.dots--hero { color: var(--teal); right: 6%; bottom: 12%; opacity: .55; }

.hero__inner { position: relative; display: grid; grid-template-columns: 1.25fr .75fr; gap: 3rem; align-items: center; }
.hero__copy .lead { margin-bottom: 2rem; }
.hero__cta { display: flex; flex-wrap: wrap; gap: .9rem; }

.hero__art { display: grid; place-items: center; position: relative; }
.hero__art::before {
  content: ""; position: absolute; inset: 8% 4%; border-radius: 40px;
  background: var(--teal); transform: rotate(8deg); opacity: .12;
}
.hero__iso { width: min(320px, 100%); filter: drop-shadow(0 24px 40px rgba(60, 52, 137, .3)); position: relative; }
.node { transform-box: fill-box; transform-origin: center; animation: pulse 3.6s ease-in-out infinite; }
.node--b { animation-delay: 1.2s; }
.node--c { animation-delay: 2.4s; }
@keyframes pulse { 0%, 70%, 100% { transform: scale(1); } 35% { transform: scale(1.18); } }

/* ---------- Secciones ---------- */
.section { position: relative; padding: clamp(4rem, 9vw, 6.5rem) 0; }
.section--tint { background: var(--bg-soft); }
.section__head { text-align: center; margin: 0 auto 3rem; max-width: 720px; }
.section__head .lead { margin-inline: auto; }
.section__head--left { text-align: left; margin-left: 0; }
.section__head--left .lead { margin-inline: 0; }

/* Nosotros */
.about { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: start; }
.about__text p { font-size: 1.08rem; }
.pillars-mini { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; margin-top: 3rem; }
.mini { padding: 1.5rem; border: 1px solid var(--line); border-radius: var(--radius); }
.mini h3 { margin-top: .9rem; margin-bottom: .3rem; }
.mini p { margin: 0; font-size: .97rem; }
.mini__dot { display: block; width: 18px; height: 18px; border-radius: 50%; background: var(--c); }

/* Servicios */
.services { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.service {
  background: #fff; border-radius: 24px; padding: 2.4rem; box-shadow: var(--shadow);
  border-top: 6px solid var(--c); transition: transform .3s, box-shadow .3s;
}
.service:hover { transform: translateY(-4px); box-shadow: 0 2px 4px rgba(22,21,26,.04), 0 18px 40px rgba(60,52,137,.14); }
.service--edu { --c: var(--indigo); }
.service--dev { --c: var(--teal); }
.service h3 { font-size: 1.7rem; margin-bottom: .4rem; }
.service__icon {
  width: 56px; height: 56px; border-radius: 16px; display: grid; place-items: center;
  background: var(--c); color: #fff; margin-bottom: 1.4rem;
}
.service__icon svg { width: 28px; height: 28px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.service__tag { font-size: .8rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--c); margin-bottom: .3rem; }

.checks { list-style: none; padding: 0; margin: 1.4rem 0 1.8rem; display: grid; gap: .55rem; }
.checks li { display: flex; align-items: center; gap: .7rem; color: var(--ink); font-weight: 600; }
.checks li::before {
  content: ""; flex: none; width: 10px; height: 10px; border-radius: 50%; background: var(--amber);
}

/* Instituto: recorrido */
.path { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 1rem; position: relative; }
.path::before { /* línea conectora */
  content: ""; position: absolute; top: 24px; left: 24px; right: 24px; height: 3px;
  background: linear-gradient(90deg, var(--indigo), var(--teal) 60%, var(--amber));
  border-radius: 2px;
}
.path__step { position: relative; }
.path__n {
  position: relative; display: grid; place-items: center; width: 50px; height: 50px; border-radius: 50%;
  background: #fff; border: 3px solid var(--indigo); color: var(--indigo);
  font-family: var(--f-title); font-weight: 700; font-size: 1.15rem; margin-bottom: 1.1rem;
}
.path__step:nth-child(3) .path__n, .path__step:nth-child(4) .path__n { border-color: var(--teal); color: var(--teal); }
.path__step:nth-child(5) .path__n { border-color: var(--amber); color: var(--amber-600); }
.path__step h3 { margin-bottom: .3rem; }
.path__step p { font-size: .95rem; margin: 0; }

.facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-top: 3.5rem; padding: 1.6rem; border-radius: var(--radius); background: var(--indigo-50); }
.fact { display: flex; flex-direction: column; padding: 0 1rem; }
.fact + .fact { border-left: 1px solid rgba(60, 52, 137, .15); }
.fact strong { font-family: var(--f-title); color: var(--indigo); font-size: 1.05rem; }
.fact span { font-size: .95rem; }

/* Desarrollo */
.section--indigo { background: var(--indigo); color: rgba(255, 255, 255, .78); overflow: hidden; }
.section--indigo h2, .section--indigo h3 { color: #fff; }
.dots--dev { color: rgba(255, 255, 255, .35); right: 5%; top: 3.5rem; }

.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem; }
.card-dark {
  padding: 1.8rem; border-radius: var(--radius);
  background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .12);
  transition: background .3s, transform .3s;
}
.card-dark:hover { background: rgba(255, 255, 255, .1); transform: translateY(-4px); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.card-dark { display: flex; flex-direction: column; }
.card-dark h3 { margin-bottom: .45rem; }
.chips { list-style: none; padding: 0; margin: auto 0 0; padding-top: 1.1rem; display: flex; flex-wrap: wrap; gap: .4rem; }
.chips li {
  font-size: .78rem; font-weight: 600; color: #fff; line-height: 1.2;
  padding: .32rem .65rem; border-radius: 999px;
  background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .18);
}
.dev-note { margin: 1.6rem 0 0; color: rgba(255, 255, 255, .85); }
.card-dark svg { width: 34px; height: 34px; fill: none; stroke: var(--amber); stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; margin-bottom: 1.2rem; }
.card-dark p { margin: 0; font-size: .97rem; }

.process { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; margin-top: 3rem; border-radius: var(--radius); overflow: hidden; background: rgba(255, 255, 255, .12); }
.process div { background: var(--indigo-900); padding: 1.3rem 1.4rem; color: #fff; font-weight: 600; }
.process span { display: block; font-family: var(--f-title); color: var(--teal); font-size: .85rem; margin-bottom: .2rem; filter: brightness(1.35); }

/* Contacto */
.contact { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: start; }
.contact__list { list-style: none; padding: 0; margin: 2rem 0 0; display: grid; gap: 1.1rem; }
.contact__list li { display: flex; align-items: center; gap: 1rem; }
.contact__list small { display: block; font-size: .8rem; text-transform: uppercase; letter-spacing: .1em; }
.contact__list a, .contact__list span:not(.ci) { color: var(--ink); font-weight: 600; }
.contact__list a:hover { color: var(--indigo); }
.ci { flex: none; width: 48px; height: 48px; border-radius: 14px; display: grid; place-items: center; color: #fff; }
.ci svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.ci--amber { background: var(--amber); }
.ci--indigo { background: var(--indigo); }
.ci--teal { background: var(--teal); }
.ci--gray { background: var(--gray); }

.form { background: #fff; border-radius: 24px; padding: 2.2rem; box-shadow: var(--shadow); border: 1px solid var(--line); display: grid; gap: 1.1rem; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form label { display: grid; gap: .4rem; font-weight: 600; font-size: .9rem; color: var(--ink); }
.form input, .form select, .form textarea {
  font: inherit; font-weight: 400; color: var(--ink); width: 100%;
  padding: .8rem 1rem; border-radius: 12px; border: 1.5px solid var(--line); background: var(--bg-soft);
  transition: border-color .2s, background .2s, box-shadow .2s;
}
.form textarea { resize: vertical; }
.form input:focus, .form select:focus, .form textarea:focus {
  outline: none; border-color: var(--indigo); background: #fff; box-shadow: 0 0 0 4px rgba(60, 52, 137, .12);
}
.form .is-invalid { border-color: #D64545; }
.form__note { font-size: .85rem; margin: 0; text-align: center; }

/* Footer */
.footer { background: var(--ink); color: rgba(255, 255, 255, .6); padding: 2.8rem 0; border-top: 6px solid var(--teal); }
.footer__inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1.5rem; }
.footer__brand { display: flex; align-items: center; gap: .9rem; }
.footer__brand small { display: block; font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; line-height: 1.4; }
.footer__links { display: flex; gap: 1.6rem; }
.footer__links a:hover { color: var(--amber); }
.footer__copy { width: 100%; margin: .5rem 0 0; padding-top: 1.5rem; border-top: 1px solid rgba(255, 255, 255, .1); font-size: .85rem; }

/* ---------- BIT: robot mascota ---------- */
.bot {
  position: fixed; left: 0; bottom: 10px; z-index: 40;
  width: 92px; pointer-events: none;
  transform: translate3d(var(--x, 20px), 0, 0);
  will-change: transform;
}
.bot.is-hidden { display: none; }
.bot__sprite {
  pointer-events: auto; display: block; width: 100%; padding: 0; border: 0; background: none; cursor: pointer;
  transform: scaleX(var(--dir, 1));
  filter: drop-shadow(0 8px 10px rgba(22, 21, 26, .18));
  -webkit-tap-highlight-color: transparent;
}
.bot__sprite:focus-visible { outline: 3px solid var(--amber); outline-offset: 4px; border-radius: 12px; }
.bot__sprite svg { width: 100%; height: auto; overflow: visible; }

.bot svg * { transform-box: fill-box; }
.bot__led { animation: led 1.6s ease-in-out infinite; }
@keyframes led { 0%, 100% { opacity: 1; } 50% { opacity: .35; } }
.bot__heart { transform-origin: center; animation: heart 1.2s ease-in-out infinite; }
@keyframes heart { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.35); } }
.bot__eyes { transition: transform .15s ease-out; }
.bot__blink { transform-origin: center; animation: blink 4.5s infinite; }
@keyframes blink { 0%, 94%, 100% { transform: scaleY(1); } 97% { transform: scaleY(.1); } }
.bot__arm { transform-origin: 50% 8%; }
.bot__wheel { transform-origin: center; }

/* caminando: ruedas giran y el cuerpo rebota un poco */
.bot.is-walking .bot__wheel { animation: spin .7s linear infinite; }
.bot.is-walking .bot__sprite svg { animation: bob .35s ease-in-out infinite alternate; }
.bot.is-walking .bot__arm--l { animation: swing .7s ease-in-out infinite alternate; }
.bot.is-walking .bot__arm--r { animation: swing .7s ease-in-out infinite alternate-reverse; }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes bob { to { transform: translateY(-2px); } }
@keyframes swing { from { transform: rotate(-14deg); } to { transform: rotate(14deg); } }

/* saludando */
.bot.is-waving .bot__arm--r { animation: wave .45s ease-in-out 4 alternate; }
@keyframes wave { from { transform: rotate(-20deg); } to { transform: rotate(-150deg); } }

/* saltando */
.bot.is-jumping .bot__sprite svg { animation: jump .6s cubic-bezier(.3, 1.6, .5, 1); }
@keyframes jump { 0%, 100% { transform: translateY(0); } 40% { transform: translateY(-34px) rotate(-6deg); } }

/* globito de diálogo */
.bot__bubble {
  position: absolute; bottom: calc(100% + 10px); left: 50%;
  width: max-content; max-width: 230px;
  background: #fff; color: var(--ink); border: 2px solid var(--indigo);
  border-radius: 16px; padding: .6rem 1.9rem .6rem .9rem;
  font-family: var(--f-title); font-weight: 600; font-size: .9rem; line-height: 1.35;
  box-shadow: 0 10px 24px rgba(60, 52, 137, .18);
  transform: translateX(var(--bx, -50%)) translateY(6px) scale(.9); transform-origin: bottom center;
  opacity: 0; visibility: hidden; transition: opacity .25s, transform .25s, visibility .25s;
  pointer-events: auto;
}
.bot__bubble::after {
  content: ""; position: absolute; top: 100%; left: var(--tail, 50%);
  width: 14px; height: 14px; background: #fff;
  border-right: 2px solid var(--indigo); border-bottom: 2px solid var(--indigo);
  transform: translate(-50%, -6px) rotate(45deg);
}
.bot.is-talking .bot__bubble { opacity: 1; visibility: visible; transform: translateX(var(--bx, -50%)) translateY(0) scale(1); }
.bot__close {
  position: absolute; top: 4px; right: 6px; width: 22px; height: 22px; padding: 0;
  border: 0; border-radius: 50%; background: transparent; color: var(--gray);
  font-size: 1.1rem; line-height: 1; cursor: pointer;
}
.bot__close:hover { background: var(--indigo-50); color: var(--indigo); }

@media (max-width: 520px) {
  .bot { width: 68px; }
  .bot__bubble { max-width: 190px; font-size: .82rem; }
}

/* Animación de entrada */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .node { animation: none; }
  .bot *, .bot__sprite svg { animation: none !important; }
}

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .grid-4, .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .path { grid-template-columns: 1fr; gap: 1.6rem; }
  .path::before { top: 24px; bottom: 24px; left: 24px; right: auto; width: 3px; height: auto;
    background: linear-gradient(180deg, var(--indigo), var(--teal) 60%, var(--amber)); }
  .path__step { display: grid; grid-template-columns: 50px 1fr; column-gap: 1.2rem; }
  .path__n { grid-row: span 2; margin: 0; }
  .process { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 820px) {
  .nav__toggle { display: block; }
  .nav__links {
    position: absolute; top: 72px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0;
    background: #fff; border-bottom: 1px solid var(--line); padding: .5rem 1.25rem 1.25rem;
    transform: translateY(-8px); opacity: 0; visibility: hidden; transition: opacity .25s, transform .25s, visibility .25s;
  }
  .nav__links.is-open { opacity: 1; transform: none; visibility: visible; }
  .nav__links a:not(.btn) { padding: .85rem 0; border-bottom: 1px solid var(--line); }
  .nav__links a:not(.btn)::after { display: none; }
  .nav__links .btn { margin-top: 1rem; }

  .hero__inner { grid-template-columns: 1fr; text-align: left; }
  .hero__art { order: -1; justify-content: start; }
  .hero__iso { width: 120px; }
  .hero__art::before { display: none; }
  .dots--hero { display: none; }

  .about, .contact, .services { grid-template-columns: 1fr; gap: 2rem; }
  .pillars-mini, .facts { grid-template-columns: 1fr; }
  .fact { padding: .6rem 0; }
  .fact + .fact { border-left: 0; border-top: 1px solid rgba(60, 52, 137, .15); }
}

@media (max-width: 520px) {
  body { font-size: 16px; }
  .grid-4, .grid-3, .process, .form__row { grid-template-columns: 1fr; }
  .service, .form { padding: 1.6rem; }
  .hero__cta .btn { flex: 1 1 100%; }
  .footer__links { flex-wrap: wrap; gap: 1rem; }
}