/* =========================================================
   Nodo5 — Midnight Indigo · sitio estático
   ========================================================= */

/* ---------- Tokens ---------- */
:root {
  --radius: 0.75rem;

  --background: oklch(0.99 0.005 270);
  --foreground: oklch(0.18 0.04 275);
  --card: oklch(1 0 0);
  --card-foreground: oklch(0.18 0.04 275);
  --primary: oklch(0.55 0.22 275);
  --primary-foreground: oklch(0.99 0.005 270);
  --primary-glow: oklch(0.6 0.22 295);
  --muted: oklch(0.96 0.01 270);
  --muted-foreground: oklch(0.45 0.03 270);
  --accent: oklch(0.94 0.03 280);
  --border: oklch(0 0 0 / 10%);
  --input: oklch(0 0 0 / 14%);
  --ring: oklch(0.55 0.22 275);

  --gradient-hero:
    radial-gradient(ellipse at top, oklch(0.7 0.18 285 / 0.18), transparent 60%),
    linear-gradient(180deg, oklch(0.99 0.005 270), oklch(0.96 0.02 275));
  --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--primary-glow) 100%);
  --shadow-glow: 0 0 40px -10px oklch(0.55 0.22 275 / 0.35);
  --shadow-elegant: 0 20px 60px -20px oklch(0.45 0.1 275 / 0.25);
  --grid-line: color-mix(in oklab, var(--foreground) 6%, transparent);

  --font-sans: "Inter", system-ui, -apple-system, sans-serif;
  --font-display: "Space Grotesk", "Inter", system-ui, sans-serif;

  --container: 72rem;
  color-scheme: light;
}

html.dark {
  --background: oklch(0.13 0.04 275);
  --foreground: oklch(0.97 0.01 270);
  --card: oklch(0.18 0.05 275);
  --card-foreground: oklch(0.97 0.01 270);
  --primary: oklch(0.58 0.22 275);
  --primary-foreground: oklch(0.99 0.005 270);
  --primary-glow: oklch(0.72 0.2 285);
  --muted: oklch(0.22 0.05 275);
  --muted-foreground: oklch(0.7 0.03 270);
  --accent: oklch(0.28 0.08 280);
  --border: oklch(1 0 0 / 8%);
  --input: oklch(1 0 0 / 12%);
  --ring: oklch(0.58 0.22 275);

  --gradient-hero:
    radial-gradient(ellipse at top, oklch(0.32 0.18 280 / 0.55), transparent 60%),
    linear-gradient(180deg, oklch(0.13 0.04 275), oklch(0.1 0.04 275));
  --shadow-glow: 0 0 40px -10px oklch(0.58 0.22 275 / 0.6);
  --shadow-elegant: 0 20px 60px -20px oklch(0.05 0.04 275 / 0.8);
  color-scheme: dark;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

body {
  background: var(--background);
  color: var(--foreground);
  font-family: var(--font-sans);
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color .3s ease, color .3s ease;
}

main { flex: 1 0 auto; }

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  letter-spacing: -0.02em;
  line-height: 1.1;
  font-weight: 600;
  text-wrap: balance;
}
p { text-wrap: pretty; }

/* ---------- Helpers ---------- */
.container { max-width: var(--container); margin-inline: auto; padding-inline: 1.5rem; }
.eyebrow {
  display: inline-flex; align-items: center; gap: .4rem;
  font-size: .72rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase;
  color: var(--primary-glow);
  border: 1px solid var(--border);
  background: color-mix(in oklab, var(--primary) 8%, transparent);
  padding: .35rem .7rem; border-radius: 999px; white-space: nowrap;
}
.eyebrow svg { width: 13px; height: 13px; }
.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.muted { color: var(--muted-foreground); }
.grid-bg {
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 48px 48px;
}
.bg-hero { background: var(--gradient-hero); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  height: 3rem; padding-inline: 1.5rem; border-radius: .6rem;
  font-size: .9rem; font-weight: 500; border: 1px solid transparent;
  transition: transform .15s ease, background-color .2s ease, border-color .2s ease, color .2s ease;
  white-space: nowrap;
}
.btn svg { width: 1rem; height: 1rem; }
.btn-primary {
  background: var(--gradient-primary); color: var(--primary-foreground);
  box-shadow: var(--shadow-glow);
}
.btn-primary:hover { transform: scale(1.02); }
.btn-ghost {
  background: color-mix(in oklab, var(--card) 70%, transparent);
  border-color: var(--border); color: var(--foreground);
}
.btn-ghost:hover { border-color: color-mix(in oklab, var(--primary) 50%, transparent); }
.btn-sm { height: 2.4rem; padding-inline: 1rem; font-size: .82rem; border-radius: .5rem; }
.btn-block { width: 100%; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50; width: 100%;
  border-bottom: 1px solid color-mix(in oklab, var(--border) 60%, transparent);
  background: color-mix(in oklab, var(--background) 72%, transparent);
  backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
}
.site-header .bar { display: flex; align-items: center; justify-content: space-between; height: 5rem; gap: 1rem; }
.brand { display: inline-flex; align-items: center; gap: .6rem; }
.brand img { height: 3rem; width: auto; object-fit: contain; }
.logo-dark { display: none; }
html.dark .logo-light { display: none; }
html.dark .logo-dark { display: block; }
.nav-desktop { display: none; align-items: center; gap: 2rem; }
.nav-desktop a {
  font-size: .9rem; color: var(--muted-foreground); transition: color .2s ease; position: relative;
}
.nav-desktop a:hover, .nav-desktop a[aria-current="page"] { color: var(--foreground); }
.nav-desktop a[aria-current="page"]::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -1.55rem; height: 2px;
  background: var(--gradient-primary);
}
.header-actions { display: flex; align-items: center; gap: .5rem; }
.icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  height: 2.4rem; width: 2.4rem; border-radius: .55rem;
  border: 1px solid var(--border); background: transparent; color: var(--foreground);
  transition: background-color .2s ease;
}
.icon-btn:hover { background: var(--accent); }
.icon-btn svg { width: 1.1rem; height: 1.1rem; }
.theme-toggle .sun { display: none; }
html.dark .theme-toggle .sun { display: block; }
html.dark .theme-toggle .moon { display: none; }
.nav-toggle { display: inline-flex; }
.header-cta { display: none; }

/* Mobile menu */
.nav-mobile {
  display: none; flex-direction: column; gap: .25rem;
  border-bottom: 1px solid var(--border);
  background: var(--background); padding: .75rem 1.5rem 1.25rem;
}
.nav-mobile.open { display: flex; }
.nav-mobile a {
  padding: .8rem .25rem; font-size: 1rem; color: var(--muted-foreground);
  border-bottom: 1px solid color-mix(in oklab, var(--border) 50%, transparent);
}
.nav-mobile a[aria-current="page"], .nav-mobile a:hover { color: var(--foreground); }
.nav-mobile .btn { margin-top: .75rem; }

@media (min-width: 768px) {
  .nav-desktop { display: flex; }
  .header-cta { display: inline-flex; }
  .nav-toggle { display: none; }
  .nav-mobile { display: none !important; }
}

/* ---------- Sections ---------- */
.section { padding-block: 5rem; }
.section-sm { padding-block: 3.5rem; }
.section-head h2 { font-size: clamp(2rem, 4vw, 3rem); margin-top: 1rem; }
.lead { font-size: 1.125rem; color: var(--muted-foreground); }

/* ---------- Cards ---------- */
.card {
  border: 1px solid var(--border); background: var(--card);
  border-radius: 1rem; padding: 2rem;
  transition: border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.card.hoverable:hover { border-color: color-mix(in oklab, var(--primary) 50%, transparent); }
.card .ic { width: 1.6rem; height: 1.6rem; color: var(--primary-glow); }
.grid { display: grid; gap: 1.5rem; }
@media (min-width: 768px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
}

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; }
.hero .grid-bg { position: absolute; inset: 0; opacity: .4; pointer-events: none; }
.hero-inner {
  position: relative; display: grid; gap: 3rem; align-items: center;
  padding-block: 4.5rem 5rem;
}
.hero h1 { font-size: clamp(2.4rem, 6vw, 4rem); line-height: 1.04; }
.hero p.lead { margin-top: 1.5rem; max-width: 36rem; }
.hero-cta { margin-top: 2.25rem; display: flex; flex-wrap: wrap; gap: .9rem; }
.hero-meta { margin-top: 2.5rem; display: flex; flex-wrap: wrap; gap: 1.5rem 2.5rem; }
.hero-meta .stat .n { font-family: var(--font-display); font-size: 1.9rem; font-weight: 600; }
.hero-meta .stat .l { font-size: .82rem; color: var(--muted-foreground); max-width: 11rem; }
@media (min-width: 880px) {
  .hero-inner { grid-template-columns: 1.05fr .95fr; padding-block: 6rem 6.5rem; }
}

/* Animated network visual */
.netviz { position: relative; aspect-ratio: 1; width: 100%; max-width: 30rem; margin-inline: auto; }
.netviz::before {
  content: ""; position: absolute; inset: 8%; border-radius: 50%;
  background: radial-gradient(circle, oklch(0.6 0.22 295 / .22), transparent 70%);
  filter: blur(8px);
}
.netviz svg { position: relative; width: 100%; height: 100%; overflow: visible; }
.netviz .edge { stroke: url(#nodoGrad); stroke-width: 2.5; stroke-linecap: round; opacity: .55; }
.netviz .edge.diag { opacity: .22; stroke-dasharray: 4 7; }
.netviz .node { fill: url(#nodoGrad); }
.netviz .node-ring { fill: none; stroke: url(#nodoGrad); stroke-width: 2; opacity: 0; transform-origin: center; }
@media (prefers-reduced-motion: no-preference) {
  .netviz .node { animation: pulse 3.2s ease-in-out infinite; transform-box: fill-box; transform-origin: center; }
  .netviz .node:nth-child(2) { animation-delay: .0s; }
  .netviz .node:nth-child(3) { animation-delay: .5s; }
  .netviz .node:nth-child(4) { animation-delay: 1s; }
  .netviz .node:nth-child(5) { animation-delay: 1.5s; }
  .netviz .node:nth-child(6) { animation-delay: 2s; }
  .netviz .pkt { animation: travel 4s linear infinite; }
}
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .55; } }
@keyframes travel { from { offset-distance: 0%; } to { offset-distance: 100%; } }

/* ---------- Number cards (challenges) ---------- */
.numcard .num { font-family: var(--font-display); font-size: 1.9rem; font-weight: 600; }
.numcard h3 { font-size: 1.125rem; margin-top: 1rem; }
.numcard p { margin-top: .75rem; font-size: .9rem; color: var(--muted-foreground); line-height: 1.65; }

/* ---------- Capabilities strip ---------- */
.caps { display: flex; flex-wrap: wrap; gap: .6rem; }
.cap {
  border: 1px solid var(--border); background: color-mix(in oklab, var(--card) 60%, transparent);
  border-radius: 999px; padding: .5rem 1rem; font-size: .85rem; font-weight: 500;
  display: inline-flex; align-items: center; gap: .5rem;
}
.cap .dot { width: .5rem; height: .5rem; border-radius: 50%; background: var(--gradient-primary); }

/* ---------- Process steps ---------- */
.steps { counter-reset: step; display: grid; gap: 1.5rem; }
@media (min-width: 768px) { .steps { grid-template-columns: repeat(4, 1fr); } }
.step { position: relative; padding-top: 1rem; }
.step .k {
  font-family: var(--font-display); font-weight: 700; font-size: 1rem;
  display: inline-flex; align-items: center; justify-content: center;
  width: 2.5rem; height: 2.5rem; border-radius: .7rem;
  background: color-mix(in oklab, var(--primary) 12%, transparent);
  border: 1px solid color-mix(in oklab, var(--primary) 35%, transparent);
  color: var(--primary-glow);
}
.step h3 { font-size: 1.05rem; margin-top: 1rem; }
.step p { margin-top: .5rem; font-size: .88rem; color: var(--muted-foreground); }

/* ---------- Service cards ---------- */
.service { display: flex; flex-direction: column; }
.service .ic { width: 2rem; height: 2rem; }
.service h3 { font-size: 1.4rem; margin-top: 1.5rem; }
.service .pitch { margin-top: 1rem; font-size: .9rem; color: var(--muted-foreground); line-height: 1.65; }
.service .recv { margin-top: 1.5rem; padding-top: 1.5rem; border-top: 1px solid color-mix(in oklab, var(--border) 60%, transparent); }
.service .recv h4 { font-size: .72rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--muted-foreground); }
.service ul { list-style: none; padding: 0; margin-top: 1rem; display: grid; gap: .75rem; }
.service li { display: flex; gap: .75rem; font-size: .88rem; }
.service li svg { width: 1rem; height: 1rem; margin-top: .15rem; flex: none; color: var(--primary-glow); }
.featured { position: relative; }
.featured::after {
  content: "Más elegido"; position: absolute; top: -.7rem; right: 1.5rem;
  font-size: .68rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase;
  background: var(--gradient-primary); color: var(--primary-foreground);
  padding: .25rem .7rem; border-radius: 999px; box-shadow: var(--shadow-glow);
}

/* ---------- Partners ---------- */
.partners { display: grid; gap: 1.5rem; margin-top: 2rem; }
@media (min-width: 640px) { .partners { grid-template-columns: repeat(2, 1fr); } }
.partner {
  display: flex; gap: 1.25rem; align-items: center;
  border: 1px solid var(--border); background: color-mix(in oklab, var(--card) 50%, transparent);
  border-radius: 1rem; padding: 1.25rem; transition: border-color .2s ease, transform .2s ease;
}
.partner:hover { border-color: color-mix(in oklab, var(--primary) 50%, transparent); transform: translateY(-3px); }
.partner .ph { position: relative; flex: none; }
.partner .ph img {
  width: 5rem; height: 5rem; border-radius: 50%; object-fit: cover;
  outline: 2px solid var(--border); outline-offset: 2px;
}
.partner .ph.placeholder {
  width: 5rem; height: 5rem; border-radius: 50%;
  background:
    repeating-linear-gradient(45deg, color-mix(in oklab, var(--foreground) 7%, transparent) 0 6px, transparent 6px 12px),
    var(--muted);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-weight: 600; color: var(--muted-foreground);
}
.partner .ph .badge {
  position: absolute; right: -2px; bottom: -2px; width: 1.4rem; height: 1.4rem;
  background: var(--gradient-primary); border-radius: 50%; box-shadow: var(--shadow-glow);
  display: flex; align-items: center; justify-content: center; color: #fff;
}
.partner .ph .badge svg { width: .8rem; height: .8rem; }
.partner .name { font-family: var(--font-display); font-weight: 600; font-size: 1.05rem; }
.partner .role { font-size: .82rem; color: var(--muted-foreground); margin-top: .15rem; }
.partner .li { font-size: .78rem; color: var(--primary-glow); margin-top: .5rem; display: inline-flex; align-items: center; gap: .3rem; }
.partner .li svg { width: .85rem; height: .85rem; }

/* ---------- Rules list ---------- */
.rules { list-style: none; padding: 0; margin-top: 1.25rem; display: grid; gap: .9rem; }
.rules li { font-size: .92rem; }
.rules b { font-family: var(--font-display); }
.rules .muted { color: var(--muted-foreground); }

/* ---------- FAQ ---------- */
.faq { margin-top: 2.5rem; border-top: 1px solid var(--border); }
.faq details { border-bottom: 1px solid var(--border); }
.faq summary {
  list-style: none; cursor: pointer; padding: 1.25rem 0;
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
  font-weight: 500; font-size: 1rem;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary .chev { transition: transform .25s ease; flex: none; width: 1.1rem; height: 1.1rem; color: var(--muted-foreground); }
.faq details[open] summary .chev { transform: rotate(180deg); }
.faq .ans { padding-bottom: 1.25rem; color: var(--muted-foreground); font-size: .95rem; line-height: 1.65; }

/* ---------- CTA band ---------- */
.cta-band { position: relative; overflow: hidden; border: 1px solid var(--border); background: var(--card); border-radius: 1.5rem; padding: 3rem; }
.cta-band .bg-hero { position: absolute; inset: 0; opacity: .6; }
.cta-band > .inner { position: relative; }
.cta-band h2 { font-size: clamp(1.8rem, 4vw, 3rem); margin-top: 1rem; max-width: 34rem; }
.cta-band p { margin-top: 1rem; max-width: 32rem; color: var(--muted-foreground); }
@media (min-width: 768px) { .cta-band { padding: 4rem; } }

/* ---------- Contact ---------- */
.contact-grid { display: grid; gap: 3rem; padding-block: 4rem; }
@media (min-width: 880px) { .contact-grid { grid-template-columns: 1fr 1.4fr; } }
.field { display: grid; gap: .5rem; }
.field label { font-size: .85rem; font-weight: 500; }
.field input, .field select, .field textarea {
  width: 100%; font: inherit; color: var(--foreground);
  background: var(--background); border: 1px solid var(--input); border-radius: .6rem;
  padding: .7rem .85rem; transition: border-color .15s ease, box-shadow .15s ease;
}
.field textarea { resize: vertical; min-height: 8rem; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--ring);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--ring) 25%, transparent);
}
.form-grid { display: grid; gap: 1.25rem; }
@media (min-width: 600px) { .form-grid { grid-template-columns: repeat(2, 1fr); } .form-grid .col-2 { grid-column: span 2; } }
.phone-row { display: grid; grid-template-columns: minmax(7.5rem, 9rem) 1fr; gap: .6rem; }
.form-note { margin-top: .75rem; text-align: center; font-size: .78rem; color: var(--muted-foreground); }
.contact-aside { display: grid; gap: 1.25rem; align-content: start; }
.contact-aside .card { padding: 1.5rem; }
.contact-aside h3 { font-size: 1rem; margin-top: .75rem; }
.contact-aside p, .contact-aside li { font-size: .9rem; color: var(--muted-foreground); }
.contact-aside ul { list-style: none; padding: 0; margin-top: .75rem; display: grid; gap: .5rem; }
.wa-btn { background: #25d366; color: #06311a; border: none; }
.wa-btn:hover { transform: scale(1.02); }

/* ---------- Toast ---------- */
.toast {
  position: fixed; left: 50%; bottom: 1.5rem; transform: translateX(-50%) translateY(2rem);
  z-index: 100; max-width: 90vw; padding: .9rem 1.25rem; border-radius: .7rem;
  background: var(--card); border: 1px solid var(--border); box-shadow: var(--shadow-elegant);
  font-size: .9rem; opacity: 0; pointer-events: none; transition: opacity .25s ease, transform .25s ease;
  display: flex; align-items: center; gap: .6rem;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.ok { border-color: color-mix(in oklab, oklch(0.6 0.18 150) 60%, var(--border)); }
.toast.err { border-color: color-mix(in oklab, oklch(0.6 0.22 25) 60%, var(--border)); }
.toast svg { width: 1.1rem; height: 1.1rem; flex: none; }

/* ---------- Footer ---------- */
.site-footer { margin-top: 6rem; border-top: 1px solid color-mix(in oklab, var(--border) 60%, transparent); flex-shrink: 0; }
.footer-grid { display: grid; gap: 2.5rem; padding-block: 3.5rem; }
@media (min-width: 768px) { .footer-grid { grid-template-columns: 2fr 1fr 1fr; } }
.site-footer .brand-row { display: flex; align-items: center; gap: .75rem; }
.site-footer .brand-row img { height: 2.75rem; width: auto; }
html.dark .site-footer .footer-logo { filter: brightness(0) invert(1); }
.site-footer .blurb { margin-top: 1rem; max-width: 24rem; font-size: .9rem; color: var(--muted-foreground); }
.footer-col h4 { font-size: .9rem; }
.footer-col ul { list-style: none; padding: 0; margin-top: 1rem; display: grid; gap: .6rem; }
.footer-col a, .footer-col li { font-size: .9rem; color: var(--muted-foreground); transition: color .2s ease; }
.footer-col a:hover { color: var(--foreground); }
.footer-bottom { border-top: 1px solid color-mix(in oklab, var(--border) 60%, transparent); }
.footer-bottom .row { display: flex; flex-wrap: wrap; gap: .5rem 1rem; justify-content: space-between; padding-block: 1.5rem; font-size: .78rem; color: var(--muted-foreground); }

/* ---------- Page hero (interior) ---------- */
.page-hero { position: relative; overflow: hidden; }
.page-hero .grid-bg { position: absolute; inset: 0; opacity: .4; }
.page-hero .inner { position: relative; padding-block: 5rem 3.5rem; }
.page-hero h1 { font-size: clamp(2.4rem, 5vw, 3.75rem); margin-top: 1.5rem; max-width: 48rem; }
.page-hero p { margin-top: 1.5rem; max-width: 38rem; }
@media (min-width: 768px) { .page-hero .inner { padding-block: 7rem 4rem; } }

.skip-link {
  position: absolute; left: -999px; top: .5rem; z-index: 200;
  background: var(--card); border: 1px solid var(--border); padding: .5rem .9rem; border-radius: .5rem;
}
.skip-link:focus { left: .5rem; }