/* ------------------------------------------------------------------
   Nuevo Usuario — sitio institucional
   Paleta tomada del logo (celeste nube) sobre azul noche.
------------------------------------------------------------------- */

:root {
  --navy-950: #061020;
  --navy-900: #0a1a30;
  --navy-800: #102542;
  --sky-300: #7dd3fc;
  --sky-400: #38bdf8;
  --sky-500: #0ea5e9;
  --sky-600: #0284c7;

  --paper: #f3f7fb;
  --paper-2: #ffffff;
  --ink: #0a1a30;
  --ink-muted: #46587a;
  --line-light: #d6e2ef;

  --on-dark: #e8f0fa;
  --on-dark-muted: #9bb0cc;
  --line-dark: rgba(125, 190, 255, 0.18);

  --font-sans: "Manrope", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --radius: 14px;
  --header-h: 68px;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);
  --maxw: 1160px;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 12px); }

body {
  margin: 0;
  background: var(--navy-950);
  color: var(--on-dark);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; }
a { color: inherit; }
h1, h2, h3, p, ul, ol { margin: 0; }
ul, ol { padding: 0; list-style: none; }

:focus-visible { outline: 2px solid var(--sky-400); outline-offset: 3px; border-radius: 4px; }

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

/* ---------- Botones ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 0.85rem 1.6rem;
  border-radius: 999px;
  border: 1.5px solid transparent;
  font-weight: 700; font-size: 0.98rem; text-decoration: none; line-height: 1.2;
  transition: transform .15s ease, background-color .15s ease, border-color .15s ease, color .15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn--sm { padding: 0.55rem 1.1rem; font-size: 0.9rem; }
.btn--accent { background: var(--sky-400); color: #04121f; }
.btn--accent:hover { background: var(--sky-300); }
.btn--ghost { border-color: var(--line-dark); color: var(--on-dark); background: rgba(255,255,255,.03); }
.btn--ghost:hover { border-color: var(--sky-400); }
.btn--dark { background: var(--navy-950); color: #fff; }
.btn--dark:hover { background: var(--navy-800); }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  height: var(--header-h);
  background: rgba(6, 16, 32, 0.78);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line-dark);
}
.header-row { height: 100%; display: flex; align-items: center; gap: 1.5rem; }

.brand { display: flex; align-items: center; gap: 0.6rem; text-decoration: none; font-weight: 800; letter-spacing: -0.01em; }
.brand img { height: 38px; width: auto; }

.nav { display: flex; gap: 1.75rem; margin-left: auto; }
.nav a { text-decoration: none; font-size: 0.93rem; font-weight: 600; color: var(--on-dark-muted); transition: color .15s; }
.nav a:hover { color: #fff; }

.nav-toggle { display: none; }

@media (max-width: 860px) {
  .header-cta { display: none; }
  .nav-toggle {
    display: inline-flex; flex-direction: column; justify-content: center; gap: 6px;
    margin-left: auto; width: 44px; height: 44px; padding: 0 11px;
    background: none; border: 1px solid var(--line-dark); border-radius: 10px; cursor: pointer;
  }
  .nav-toggle span { display: block; height: 2px; background: var(--on-dark); border-radius: 2px; transition: transform .2s; }
  .nav-toggle[aria-expanded="true"] span:first-child { transform: translateY(4px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:last-child { transform: translateY(-4px) rotate(-45deg); }

  .nav {
    position: absolute; top: var(--header-h); left: 0; right: 0;
    flex-direction: column; gap: 0; margin: 0;
    background: var(--navy-950); border-bottom: 1px solid var(--line-dark);
    padding: 0.5rem var(--gutter) 1rem;
    display: none;
  }
  .nav.is-open { display: flex; }
  .nav a { padding: 0.85rem 0; font-size: 1.05rem; border-bottom: 1px solid var(--line-dark); }
  .nav a:last-child { border-bottom: 0; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  padding-block: clamp(3.5rem, 8vw, 6.5rem) 0;
  background:
    radial-gradient(60% 55% at 85% 20%, rgba(14, 165, 233, 0.22), transparent 70%),
    radial-gradient(45% 45% at 5% 90%, rgba(56, 189, 248, 0.10), transparent 70%),
    var(--navy-950);
}
/* cuadrícula técnica */
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(var(--line-dark) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-dark) 1px, transparent 1px);
  background-size: 56px 56px;
  opacity: .45;
  mask-image: radial-gradient(ellipse 80% 70% at 60% 30%, #000 25%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 60% 30%, #000 25%, transparent 75%);
}

.hero-grid {
  position: relative;
  display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: clamp(2rem, 5vw, 4.5rem); align-items: center;
}
@media (max-width: 900px) { .hero-grid { grid-template-columns: 1fr; } }

.tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1.5rem; }
.tags li {
  font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.02em;
  padding: 0.35rem 0.8rem; border-radius: 6px;
  color: var(--sky-300); border: 1px solid var(--line-dark); background: rgba(56,189,248,.07);
}

h1 {
  font-size: clamp(2.3rem, 5.6vw, 4.2rem);
  font-weight: 800; line-height: 1.04; letter-spacing: -0.035em;
  text-wrap: balance; margin-bottom: 1.5rem;
}
h1 em {
  font-style: normal;
  background: linear-gradient(100deg, var(--sky-300), var(--sky-500));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

.lead { color: var(--on-dark-muted); font-size: clamp(1rem, 1.5vw, 1.12rem); max-width: 40rem; }
.actions { display: flex; flex-wrap: wrap; gap: 0.85rem; margin-top: 2rem; }

/* Diagrama híbrido */
.hybrid { display: flex; flex-direction: column; align-items: stretch; max-width: 26rem; width: 100%; margin-inline: auto; }
@media (max-width: 900px) { .hybrid { display: none; } }

.node {
  border: 1px solid var(--line-dark); border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
  padding: 1.1rem 1.25rem 1.25rem;
  box-shadow: 0 18px 50px -20px rgba(0,0,0,.6);
}
.node--cloud { border-color: rgba(56,189,248,.45); box-shadow: 0 18px 60px -22px rgba(14,165,233,.45); }

.node-head { display: flex; align-items: center; gap: 0.6rem; margin-bottom: 0.9rem; font-family: var(--font-mono); font-size: 0.85rem; color: var(--on-dark); }
.node-head svg { width: 20px; height: 20px; fill: none; stroke: var(--sky-300); stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.node-head .status { margin-left: auto; width: 8px; height: 8px; border-radius: 50%; background: #34d399; box-shadow: 0 0 0 0 rgba(52,211,153,.6); animation: ping 2.4s ease-out infinite; }

.chips { display: flex; flex-wrap: wrap; gap: 0.45rem; }
.chips li { font-size: 0.82rem; font-weight: 600; padding: 0.3rem 0.7rem; border-radius: 6px; background: rgba(125,190,255,.1); color: var(--on-dark); }

.link { position: relative; height: 84px; display: flex; align-items: center; justify-content: center; }
.link .flow {
  position: absolute; left: 50%; top: 0; bottom: 0; width: 2px; transform: translateX(-50%);
  background: linear-gradient(180deg, transparent, var(--sky-400) 45%, transparent 90%);
  background-size: 100% 200%;
  animation: flow 2.2s linear infinite;
}
.link b {
  position: relative; font-family: var(--font-mono); font-weight: 500; font-size: 0.74rem; letter-spacing: 0.08em; text-transform: uppercase;
  padding: 0.3rem 0.8rem; border-radius: 999px;
  background: var(--navy-950); border: 1px solid rgba(56,189,248,.5); color: var(--sky-300);
}

@keyframes flow { from { background-position: 0 200%; } to { background-position: 0 -100%; } }
@keyframes ping { 70%, 100% { box-shadow: 0 0 0 9px rgba(52,211,153,0); } }

/* Franja de plataformas */
.platforms {
  position: relative; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.75rem 2rem;
  margin-top: clamp(3rem, 6vw, 5rem); padding-block: 1.4rem;
  border-top: 1px solid var(--line-dark);
  font-family: var(--font-mono); font-size: 0.85rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--on-dark-muted);
}
.platforms li::before { content: "/ "; color: var(--sky-400); }

/* ---------- Secciones ---------- */
.section { padding-block: clamp(4rem, 9vw, 7rem); }
.section--light { background: var(--paper); color: var(--ink); }
.section--dark { background: var(--navy-900); color: var(--on-dark); }

.section-head { max-width: 46rem; margin-bottom: clamp(2.25rem, 5vw, 3.75rem); }
.eyebrow {
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-family: var(--font-mono); font-size: 0.8rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--sky-600); margin-bottom: 0.9rem;
}
.eyebrow::before { content: ""; width: 26px; height: 2px; background: currentColor; }
.section--dark .eyebrow { color: var(--sky-400); }

h2 { font-size: clamp(1.8rem, 3.8vw, 2.9rem); font-weight: 800; line-height: 1.1; letter-spacing: -0.03em; text-wrap: balance; }
.section--dark h2 { font-size: clamp(1.6rem, 3.2vw, 2.35rem); }

/* Servicios */
.services { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1.25rem; }
@media (max-width: 1020px) { .services { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px)  { .services { grid-template-columns: 1fr; } }

.service {
  background: var(--paper-2); border: 1px solid var(--line-light); border-radius: var(--radius);
  padding: 1.75rem 1.5rem 1.9rem;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.service:hover { transform: translateY(-4px); border-color: var(--sky-400); box-shadow: 0 18px 40px -22px rgba(2,132,199,.5); }
.service svg { width: 40px; height: 40px; padding: 8px; margin-bottom: 1.25rem; border-radius: 10px; background: #e3f3fd; fill: none; stroke: var(--sky-600); stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.service h3 { font-size: 1.12rem; font-weight: 800; letter-spacing: -0.015em; line-height: 1.25; margin-bottom: 0.6rem; }
.service p { color: var(--ink-muted); font-size: 0.95rem; }

/* Por qué elegirnos */
.reasons { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 clamp(2rem, 6vw, 5rem); }
@media (max-width: 760px) { .reasons { grid-template-columns: 1fr; } }
.reasons li { display: grid; grid-template-columns: auto 1fr; align-content: start; column-gap: 1.5rem; padding-block: 1.9rem; border-top: 1px solid var(--line-dark); }
.reasons .num { grid-row: span 2; font-family: var(--font-mono); font-size: 0.9rem; color: var(--sky-400); padding-top: 0.35rem; }
.reasons h3 { font-size: 1.35rem; font-weight: 800; letter-spacing: -0.02em; margin-bottom: 0.35rem; }
.reasons p { color: var(--on-dark-muted); }

/* Tecnologías */
.stack { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.25rem; }
@media (max-width: 760px) { .stack { grid-template-columns: 1fr; } }
.stack-group { background: var(--paper-2); border: 1px solid var(--line-light); border-radius: var(--radius); padding: 1.75rem; border-left: 4px solid var(--sky-500); }
.stack-group h3 { font-size: 1.25rem; font-weight: 800; letter-spacing: -0.02em; margin-bottom: 1rem; }
.stack-group li { position: relative; padding-left: 1.4rem; color: var(--ink-muted); font-size: 0.96rem; }
.stack-group li + li { margin-top: 0.55rem; }
.stack-group li::before { content: ""; position: absolute; left: 0; top: 0.62em; width: 7px; height: 7px; border-radius: 2px; background: var(--sky-400); }

/* CTA */
.cta { background: linear-gradient(120deg, var(--sky-400), var(--sky-600)); color: #04121f; padding-block: clamp(4rem, 8vw, 6rem); }
.cta-inner { text-align: center; display: flex; flex-direction: column; align-items: center; gap: 1.25rem; }
.cta h2 { max-width: 40rem; }
.cta p { max-width: 38rem; font-size: 1.1rem; font-weight: 500; color: #052039; margin-bottom: 0.5rem; }

/* ---------- Footer ---------- */
.site-footer { background: var(--navy-950); color: var(--on-dark-muted); padding-top: clamp(3rem, 6vw, 4.5rem); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 2.5rem; }
@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-brand img { height: 64px; width: auto; margin-bottom: 0.75rem; margin-left: -6px; }
.footer-brand p { max-width: 20rem; }
.site-footer h3 { font-size: 0.8rem; font-family: var(--font-mono); letter-spacing: 0.12em; text-transform: uppercase; color: var(--on-dark); margin-bottom: 1rem; }
.site-footer li + li { margin-top: 0.6rem; }
.site-footer a { text-decoration: none; transition: color .15s; }
.site-footer a:hover { color: var(--sky-300); }
.footer-legal { margin-top: 3rem; padding-block: 1.5rem; border-top: 1px solid var(--line-dark); font-size: 0.88rem; text-align: center; }

/* ---------- Animación de entrada ---------- */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.js .reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .js .reveal { opacity: 1; transform: none; }
}