/* ctelltech.com — «Del código al cable». Plano técnico: papel, tinta y un solo acento naranja. */
@layer reset, tokens, base, components, sections, motion;

@property --esq { syntax: "<length>"; inherits: false; initial-value: 12px; }

/* ───────────── reset ───────────── */
@layer reset {
  *, *::before, *::after { box-sizing: border-box; }
  body, h1, h2, h3, h4, p, figure, dl, dd, ol, ul { margin: 0; }
  ol, ul { padding: 0; list-style: none; }
  img, svg { display: block; max-width: 100%; }
  button, input, textarea, select { font: inherit; color: inherit; }
  button { cursor: pointer; background: none; border: 0; padding: 0; }
  [hidden] { display: none !important; }
}

/* ───────────── tokens (claro/oscuro con light-dark) ───────────── */
@layer tokens {
  :root {
    color-scheme: light dark;
    --paper:   light-dark(#F3F1EA, #0E1116);
    --paper-2: light-dark(#EBE8DF, #141821);
    --card:    light-dark(#FAF9F5, #171B24);
    --ink:     light-dark(#12151B, #E9E6DD);
    --ink-2:   light-dark(#454A54, #B4B1A8);
    --ink-3:   light-dark(#5F636C, #8F8C84);
    --line:        light-dark(rgb(18 21 27 / .16), rgb(233 230 221 / .16));
    --line-strong: light-dark(rgb(18 21 27 / .42), rgb(233 230 221 / .40));
    --grid:        light-dark(rgb(18 21 27 / .055), rgb(233 230 221 / .045));
    --signal: #FF5A1F;
    --signal-ink: light-dark(#B23A0B, #FF8A5C);
    --signal-soft: light-dark(rgb(255 90 31 / .12), rgb(255 90 31 / .16));
    --signal-on-ink: light-dark(#FF5A1F, #B23A0B);
    --on-signal: #12151B;
    --ok: light-dark(#1F7A4D, #4CC38A);
    --monitor: light-dark(#12151B, #07090C);
    --monitor-ink: #E9E6DD;
    --monitor-ink-2: #A3A098;

    --font-sans: "Bricolage Grotesque", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
    --font-mono: "JetBrains Mono", ui-monospace, "Cascadia Mono", Menlo, Consolas, monospace;
    --nav-h: 64px;
    --gutter: clamp(16px, 4vw, 40px);
    --maxw: 1200px;
    --radius: 12px;
    --ease: cubic-bezier(.2, .7, .2, 1);
  }
  :root[data-theme="light"] { color-scheme: light; }
  :root[data-theme="dark"]  { color-scheme: dark; }
}

/* ───────────── base ───────────── */
@layer base {
  html {
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--nav-h) + 20px);
    -webkit-text-size-adjust: 100%;
    background-color: var(--paper);
  }
  body {
    min-height: 100vh;
    background-color: var(--paper);
    background-image:
      linear-gradient(var(--grid) 1px, transparent 1px),
      linear-gradient(90deg, var(--grid) 1px, transparent 1px);
    background-size: 32px 32px;
    color: var(--ink);
    font: 400 1.0625rem/1.6 var(--font-sans);
    font-optical-sizing: auto;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    overflow-x: clip;
  }
  h1, h2, h3 { font-weight: 750; line-height: 1.02; letter-spacing: -.03em; text-wrap: balance; }
  p { text-wrap: pretty; }
  a { color: inherit; text-underline-offset: .2em; }
  strong { font-weight: 650; }
  ::selection { background: var(--signal); color: var(--on-signal); }
  :focus-visible { outline: 2px solid var(--signal); outline-offset: 3px; border-radius: 6px; }

  .wrap { width: 100%; max-width: calc(var(--maxw) + 2 * var(--gutter)); margin-inline: auto; padding-inline: var(--gutter); }
  .mono { font-family: var(--font-mono); font-size: .75rem; letter-spacing: .06em; text-transform: uppercase; }
  .sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

  svg.i {
    width: 1.25em; height: 1.25em; flex: none;
    fill: none; stroke: currentColor; stroke-width: 1.75; stroke-linecap: round; stroke-linejoin: round;
  }
}

/* ───────────── componentes ───────────── */
@layer components {
  .skip {
    position: fixed; left: 12px; top: -60px; z-index: 100;
    background: var(--ink); color: var(--paper); padding: 10px 16px; border-radius: 8px; text-decoration: none;
  }
  .skip:focus { top: 12px; }

  /* Botones */
  .btn {
    display: inline-flex; align-items: center; justify-content: center; gap: .6em;
    min-height: 50px; padding: 0 1.3em;
    border: 1.5px solid var(--ink); border-radius: 10px;
    font: 600 1rem/1.1 var(--font-sans); letter-spacing: -.005em;
    text-decoration: none; white-space: nowrap;
    transition: transform .2s var(--ease), box-shadow .2s var(--ease), background-color .2s, color .2s, border-color .2s;
  }
  .btn svg.i { width: 1.15em; height: 1.15em; }
  .btn--signal { background: var(--signal); border-color: var(--signal); color: var(--on-signal); }
  .btn--signal:hover { transform: translate(-3px, -3px); box-shadow: 3px 3px 0 var(--ink); }
  .btn--line { background: transparent; color: var(--ink); }
  .btn--line:hover { background: var(--ink); color: var(--paper); }
  .btn--sm { min-height: 40px; padding: 0 1em; font-size: .9375rem; }
  .btn .flecha { transition: transform .2s var(--ease); }
  .btn:hover .flecha { transform: translateX(3px); }

  .icon-btn {
    display: inline-grid; place-items: center; width: 40px; height: 40px;
    border: 1.5px solid var(--line); border-radius: 10px; color: var(--ink);
    transition: border-color .2s, background-color .2s;
  }
  .icon-btn:hover { border-color: var(--ink); }

  /* Rótulo de plano: «FIG. 02 ─── Servicios» */
  .rotulo {
    display: flex; align-items: center; gap: 12px;
    font-family: var(--font-mono); font-size: .75rem; letter-spacing: .08em; text-transform: uppercase;
    color: var(--ink-2);
  }
  .rotulo__fig { flex: none; white-space: nowrap; color: var(--signal-ink); font-weight: 500; }
  .rotulo--linea::after { content: ""; flex: 1; border-top: 1px solid var(--line); }

  /* Esquinas de visor, como en el logo */
  .esquinas {
    --esq-c: var(--line-strong);
    --o: 6px;
    background-image:
      linear-gradient(var(--esq-c) 0 0), linear-gradient(var(--esq-c) 0 0),
      linear-gradient(var(--esq-c) 0 0), linear-gradient(var(--esq-c) 0 0),
      linear-gradient(var(--esq-c) 0 0), linear-gradient(var(--esq-c) 0 0),
      linear-gradient(var(--esq-c) 0 0), linear-gradient(var(--esq-c) 0 0);
    background-position:
      left var(--o) top var(--o), left var(--o) top var(--o),
      right var(--o) top var(--o), right var(--o) top var(--o),
      left var(--o) bottom var(--o), left var(--o) bottom var(--o),
      right var(--o) bottom var(--o), right var(--o) bottom var(--o);
    background-size:
      var(--esq) 1.5px, 1.5px var(--esq), var(--esq) 1.5px, 1.5px var(--esq),
      var(--esq) 1.5px, 1.5px var(--esq), var(--esq) 1.5px, 1.5px var(--esq);
    background-repeat: no-repeat;
    transition: --esq .35s var(--ease);
  }

  /* Chips de tecnología */
  .chips { display: flex; flex-wrap: wrap; gap: 6px; }
  .chip {
    font-family: var(--font-mono); font-size: .75rem; line-height: 1; letter-spacing: .02em;
    padding: 6px 8px; border: 1px solid var(--line); border-radius: 6px; color: var(--ink-2);
  }

  /* Punto de estado «en operación» */
  .estado {
    display: inline-flex; align-items: center; gap: 8px;
    font-family: var(--font-mono); font-size: .75rem; letter-spacing: .06em; text-transform: uppercase; color: var(--ok);
  }
  .estado::before {
    content: ""; width: 8px; height: 8px; border-radius: 50%; background: currentColor;
    box-shadow: 0 0 0 3px color-mix(in srgb, currentColor 22%, transparent);
  }

  /* Cable de progreso a la izquierda (escritorio) */
  .progreso {
    position: fixed; z-index: 30; left: 18px; top: calc(var(--nav-h) + 28px); bottom: 28px; width: 2px;
    background: repeating-linear-gradient(to bottom, var(--line-strong) 0 6px, transparent 6px 11px);
    pointer-events: none;
  }
  .progreso span {
    position: absolute; left: 0; top: 0; width: 100%; height: calc(var(--p, 0) * 100%);
    background: var(--signal);
  }
  .progreso span::after {
    content: ""; position: absolute; left: 50%; bottom: -5px; width: 10px; height: 10px; translate: -50% 0;
    border-radius: 50%; background: var(--signal); box-shadow: 0 0 0 4px var(--signal-soft);
  }
  @media (max-width: 1099px) { .progreso { display: none; } }
}

/* ───────────── secciones ───────────── */
@layer sections {
  /* Navegación */
  .nav {
    position: fixed; inset: 0 0 auto; z-index: 40; height: var(--nav-h);
    background: var(--paper); border-bottom: 1px solid var(--line);
    transition: transform .35s var(--ease);
  }
  .nav[data-oculta="1"] { transform: translateY(-100%); }
  .nav__in { height: 100%; display: flex; align-items: center; gap: 24px; }
  .nav__logo { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 750; font-size: 1.125rem; letter-spacing: -.02em; }
  .nav__logo { --logo-esq: var(--signal); }
  .nav__logo svg { width: 46px; height: auto; }
  .nav__links { display: flex; gap: 4px; margin-inline: auto; }
  .nav__links a {
    position: relative; padding: 8px 12px; text-decoration: none; font-size: .9375rem; color: var(--ink-2);
    transition: color .2s;
  }
  .nav__links a::after {
    content: ""; position: absolute; left: 12px; right: 12px; bottom: 2px; height: 2px; background: var(--signal);
    transform: scaleX(0); transform-origin: left; transition: transform .3s var(--ease);
  }
  .nav__links a:hover, .nav__links a[aria-current="true"] { color: var(--ink); }
  .nav__links a[aria-current="true"]::after, .nav__links a:hover::after { transform: scaleX(1); }
  .nav__acts { display: flex; align-items: center; gap: 8px; }
  .nav__menu { display: none; }
  .tema .luna { display: none; }
  :root[data-tema-actual="dark"] .tema .sol { display: none; }
  :root[data-tema-actual="dark"] .tema .luna { display: block; }
  @media (max-width: 1023px) {
    .nav__links { display: none; }
    .nav__menu { display: inline-grid; }
    .nav__acts { margin-left: auto; }
  }
  @media (max-width: 479px) {
    .nav__wa span { display: none; }
    .nav__wa { padding: 0 .8em; }
  }

  /* Menú móvil */
  .menu {
    width: 100%; max-width: none; height: 100%; max-height: none; margin: 0; padding: 0; border: 0;
    background: var(--paper); color: var(--ink);
  }
  .menu::backdrop { background: rgb(0 0 0 / .3); }
  .menu__in { min-height: 100%; display: flex; flex-direction: column; gap: 32px; padding: 20px var(--gutter) 32px; }
  .menu__top { display: flex; justify-content: space-between; align-items: center; }
  .menu nav { display: grid; }
  .menu nav a {
    display: flex; align-items: baseline; gap: 14px; padding: 14px 0;
    border-bottom: 1px solid var(--line); text-decoration: none;
    font-size: clamp(1.75rem, 8vw, 2.5rem); font-weight: 700; letter-spacing: -.03em;
  }
  .menu nav a .mono { color: var(--signal-ink); }
  .menu__pie { margin-top: auto; display: grid; gap: 10px; }

  /* Hero */
  .hero {
    display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(24px, 4vw, 64px); align-items: center;
    padding-top: calc(var(--nav-h) + clamp(40px, 7vw, 96px)); padding-bottom: clamp(40px, 6vw, 72px);
  }
  .hero__t { font-size: clamp(3.2rem, 9.2vw, 7.4rem); line-height: .9; letter-spacing: -.035em; font-weight: 800; margin: 22px 0 26px; }
  .hero__cable { position: relative; display: inline-block; white-space: nowrap; }
  .hero__cable svg { position: absolute; left: 0; bottom: -.26em; width: 94%; height: auto; overflow: visible; }
  .hero__cable .base { fill: none; stroke: var(--ink); stroke-width: 3.5; stroke-linecap: round; }
  .hero__cable .luz  { fill: none; stroke: var(--signal); stroke-width: 6; stroke-linecap: round;
                       stroke-dasharray: .09 1; stroke-dashoffset: .09; opacity: 0; }
  .hero__lead { max-width: 36em; font-size: clamp(1.0625rem, 1.4vw, 1.25rem); color: var(--ink-2); }
  .hero__ctas { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
  .hero__nota { margin-top: 16px; color: var(--ink-3); }
  @media (max-width: 899px) {
    .hero { grid-template-columns: minmax(0, 1fr); }
    .hero__fig { max-width: 440px; width: 100%; justify-self: center; }
  }
  @media (max-width: 479px) { .hero__ctas .btn { width: 100%; } }

  /* Esquema interactivo del hero */
  .esquema { position: relative; aspect-ratio: 1; }
  .esquema > svg { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
  .esquema .cable { fill: none; stroke: var(--ink); stroke-width: 1.75; }
  .esquema .cota  { fill: none; stroke: var(--line-strong); stroke-width: 1; stroke-dasharray: 4 5; }
  .esquema .pulso { fill: var(--signal); stroke: rgb(255 90 31 / .28); stroke-width: 10; }
  .esquema__centro {
    position: absolute; left: 51%; top: 51%; translate: -50% -50%; text-align: center; color: var(--ink-3);
    font-family: var(--font-mono); font-size: .75rem; letter-spacing: .1em; text-transform: uppercase; line-height: 1.7;
  }
  .esquema__centro b { display: block; color: var(--ink); font-family: var(--font-sans); font-size: clamp(1.1rem, 2.2vw, 1.5rem); letter-spacing: -.02em; text-transform: none; font-weight: 750; }
  .nodo {
    position: absolute; translate: -50% -50%; display: grid; justify-items: center; gap: 6px;
    color: var(--ink); -webkit-tap-highlight-color: transparent;
  }
  .nodo__caja {
    display: grid; place-items: center; width: clamp(44px, 5.2vw, 56px); aspect-ratio: 1;
    background: var(--paper); border: 1.5px solid var(--ink); border-radius: 12px;
    transition: background-color .25s, border-color .25s, color .25s, transform .25s var(--ease), box-shadow .25s;
  }
  .nodo__caja svg.i { width: 45%; height: 45%; }
  .nodo__txt {
    font-family: var(--font-mono); font-size: .6875rem; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-2);
    white-space: nowrap; background: var(--paper); padding: 1px 5px; border-radius: 4px;
  }
  .nodo:hover .nodo__caja, .nodo[aria-pressed="true"] .nodo__caja {
    background: var(--signal); border-color: var(--signal); color: var(--on-signal);
    transform: translateY(-2px); box-shadow: 3px 3px 0 var(--ink);
  }
  .nodo[aria-pressed="true"] .nodo__txt { color: var(--signal-ink); }
  .nodo:focus-visible { outline: none; }
  .nodo:focus-visible .nodo__caja { outline: 2px solid var(--signal); outline-offset: 4px; }
  .esquema__leyenda {
    margin-top: 18px; min-height: 7.5em; padding: 14px 16px; border-left: 2px solid var(--signal);
    background: var(--card); border-radius: 0 10px 10px 0;
  }
  .esquema__leyenda .mono { color: var(--signal-ink); }
  .esquema__leyenda p:last-child { margin-top: 4px; color: var(--ink-2); font-size: .9875rem; line-height: 1.5; }

  /* Franja de datos comprobables */
  .pruebas { padding-bottom: clamp(56px, 8vw, 104px); }
  .pruebas__grid {
    display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
    border-top: 1.5px solid var(--ink); border-bottom: 1px solid var(--line);
  }
  .pruebas__item { display: flex; flex-direction: column-reverse; justify-content: flex-end; gap: 6px; padding: 22px 20px 24px 0; }
  .pruebas__item + .pruebas__item { padding-left: 20px; border-left: 1px solid var(--line); }
  .pruebas__item dd { font-size: clamp(2rem, 3.6vw, 2.9rem); font-weight: 800; letter-spacing: -.04em; line-height: 1; }
  .pruebas__item dt { color: var(--ink-2); font-size: .9375rem; line-height: 1.4; max-width: 17em; }
  @media (max-width: 767px) {
    .pruebas__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .pruebas__item:nth-child(3) { padding-left: 0; border-left: 0; }
    .pruebas__item:nth-child(n+3) { border-top: 1px solid var(--line); }
  }

  /* Secciones comunes */
  .seccion { padding-block: clamp(72px, 10vw, 136px); }
  .seccion--alt {
    background-color: var(--paper-2);
    background-image:
      linear-gradient(var(--grid) 1px, transparent 1px),
      linear-gradient(90deg, var(--grid) 1px, transparent 1px);
    background-size: 32px 32px;
    border-block: 1px solid var(--line);
  }
  .seccion > .wrap > .rotulo { margin-bottom: clamp(28px, 4vw, 44px); }
  .seccion__cab { max-width: 780px; margin-bottom: clamp(36px, 5vw, 56px); }
  .seccion__t { font-size: clamp(2.25rem, 5.4vw, 4.1rem); line-height: .98; letter-spacing: -.035em; font-weight: 800; }
  .seccion__lead { margin-top: 18px; max-width: 40em; font-size: clamp(1.0625rem, 1.35vw, 1.1875rem); color: var(--ink-2); }

  .checks { display: grid; gap: 10px; margin: 22px 0 28px; }
  .checks li { display: grid; grid-template-columns: 16px minmax(0, 1fr); gap: 12px; }
  .checks li::before {
    content: ""; width: 14px; height: 14px; margin-top: .38em; border: 1.5px solid var(--ink); border-radius: 3px;
    background: linear-gradient(var(--signal) 0 0) center / 6px 6px no-repeat;
  }

  /* Servicios: pila de capas + pestañas */
  .servicios__grid {
    display: grid; grid-template-columns: minmax(0, 330px) minmax(0, 1fr); gap: clamp(32px, 5vw, 72px); align-items: start;
    view-timeline: --capas block;
  }
  .capas { position: sticky; top: calc(var(--nav-h) + 40px); }
  .capas svg { width: 100%; height: auto; overflow: visible; }
  .capas figcaption { margin-top: 14px; text-align: center; color: var(--ink-3); }
  .capas .eje { fill: none; stroke: var(--line-strong); stroke-dasharray: 4 6; }
  .capas .placa { cursor: pointer; }
  .capas .cara { fill: var(--card); stroke: var(--ink); stroke-width: 1.5; stroke-linejoin: round; transition: fill .3s; }
  .capas .lado { fill: var(--paper-2); stroke: var(--ink); stroke-width: 1.5; stroke-linejoin: round; }
  .capas text {
    font-family: var(--font-mono); font-size: 13px; letter-spacing: .12em; text-transform: uppercase;
    fill: var(--ink-2); pointer-events: none; transition: fill .3s;
  }
  .capas .placa:hover .cara { fill: var(--signal-soft); }
  .capas .placa.activa .cara { fill: var(--signal); }
  .capas .placa.activa text { fill: var(--on-signal); font-weight: 500; }

  .pestanas, .rubros { display: none; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
  .js .pestanas, .js .rubros { display: flex; }
  .pestana, .rubro-btn {
    display: inline-flex; align-items: center; gap: 10px; min-height: 44px; padding: 0 16px;
    border: 1.5px solid var(--line-strong); border-radius: 999px; font-weight: 600; font-size: .96875rem;
    transition: background-color .2s, color .2s, border-color .2s;
  }
  .pestana .mono, .rubro-btn .mono { font-size: .6875rem; letter-spacing: .04em; color: var(--ink-3); }
  .rubro-btn .mono { color: var(--signal-ink); }
  .pestana:hover, .rubro-btn:hover { border-color: var(--ink); }
  .pestana[aria-selected="true"], .rubro-btn[aria-checked="true"] { background: var(--ink); border-color: var(--ink); color: var(--paper); }
  .pestana[aria-selected="true"] .mono, .rubro-btn[aria-checked="true"] .mono { color: var(--signal-on-ink); }

  .tabpanel + .tabpanel { margin-top: 40px; }
  .js .tabpanel + .tabpanel { margin-top: 0; }
  .tabpanel__t { font-size: 1.5rem; margin-bottom: 16px; }
  .js .tabpanel__t { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
  .tabpanel:focus-visible { outline-offset: 8px; }
  .tarjetas { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
  .tarjeta {
    display: flex; flex-direction: column; padding: 22px 22px 20px; background-color: var(--card);
    border: 1px solid var(--line); border-radius: 14px; transition: border-color .25s, --esq .35s var(--ease);
  }
  .tarjeta:hover { --esq: 26px; --esq-c: var(--signal); border-color: var(--line-strong); }
  .tarjeta__cab { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 18px; }
  .tarjeta__ico {
    display: grid; place-items: center; width: 44px; height: 44px; border: 1.5px solid var(--ink); border-radius: 11px;
    transition: background-color .25s, color .25s;
  }
  .tarjeta__ico svg.i { width: 21px; height: 21px; }
  .tarjeta:hover .tarjeta__ico { background: var(--ink); color: var(--paper); }
  .tarjeta__n { color: var(--ink-3); }
  .tarjeta h4 { font-size: 1.25rem; font-weight: 700; letter-spacing: -.02em; line-height: 1.15; margin-bottom: 8px; }
  .tarjeta p { color: var(--ink-2); font-size: .96875rem; line-height: 1.55; margin-bottom: 18px; }
  .tarjeta .chips { margin-top: auto; }
  .ymas { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; margin-top: 28px; padding-top: 22px; border-top: 1px dashed var(--line-strong); }
  .ymas > .mono { color: var(--signal-ink); }
  @media (max-width: 899px) {
    .servicios__grid { grid-template-columns: minmax(0, 1fr); }
    .capas { position: static; width: min(300px, 80%); margin-inline: auto; }
  }
  @media (max-width: 639px) { .tarjetas { grid-template-columns: minmax(0, 1fr); } }

  /* Soluciones por industria */
  .rubro {
    --esq: 18px;
    display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: clamp(28px, 4vw, 64px); align-items: center;
    padding: clamp(24px, 3.6vw, 48px); background-color: var(--card); border: 1px solid var(--line); border-radius: 18px;
  }
  .rubro + .rubro { margin-top: 20px; }
  .js .rubro + .rubro { margin-top: 0; }
  .rubro h3 { font-size: clamp(1.9rem, 3.4vw, 2.75rem); letter-spacing: -.035em; margin: 14px 0 12px; }
  .rubro__txt > p:not(.estado) { color: var(--ink-2); max-width: 34em; }
  .rubro .checks { margin: 20px 0 26px; }
  .rubro__ctas { display: flex; flex-wrap: wrap; gap: 10px; }
  .rubro__diagrama > .mono { color: var(--ink-3); margin-bottom: 18px; }
  .rubros__paneles.vt { view-transition-name: rubro; }
  @media (max-width: 899px) { .rubro { grid-template-columns: minmax(0, 1fr); } }
  @media (max-width: 599px) {
    .js .rubros {
      flex-wrap: nowrap; overflow-x: auto; scroll-snap-type: x proximity; scrollbar-width: none;
      margin-inline: calc(-1 * var(--gutter)); padding: 2px var(--gutter) 6px; scroll-padding-inline: var(--gutter);
    }
    .rubros::-webkit-scrollbar { display: none; }
    .rubro-btn { flex: none; scroll-snap-align: start; }
  }

  /* Flujo: cuatro cajas unidas por un cable que recorre un pulso */
  .flujo { position: relative; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
  .flujo::before { content: ""; position: absolute; left: 12.5%; right: 12.5%; top: 58px; border-top: 1.5px solid var(--ink); }
  .flujo::after {
    content: ""; position: absolute; top: 52px; left: 12.5%; width: 12px; height: 12px; margin-left: -6px; border-radius: 50%;
    background: var(--signal); box-shadow: 0 0 0 5px var(--signal-soft);
  }
  .flujo li { position: relative; z-index: 1; display: grid; justify-items: center; align-content: start; gap: 8px; text-align: center; }
  .flujo__n { color: var(--signal-ink); height: 18px; }
  .flujo b {
    display: grid; place-items: center; width: 100%; max-width: 120px; height: 64px; padding: 0 8px;
    background: var(--paper); border: 1.5px solid var(--ink); border-radius: 12px;
    font-weight: 700; font-size: .96875rem; letter-spacing: -.01em; line-height: 1.1;
  }
  .flujo li > span:last-child { font-size: .875rem; color: var(--ink-2); line-height: 1.35; max-width: 12em; }
  @media (max-width: 599px) {
    .flujo { grid-template-columns: minmax(0, 1fr); gap: 12px; }
    .flujo::before { left: 98px; right: auto; top: 28px; bottom: 28px; border-top: 0; border-left: 1.5px solid var(--ink); }
    .flujo::after { left: 98.75px; top: 22px; }
    .flujo li { grid-template-columns: 26px 120px minmax(0, 1fr); justify-items: start; align-items: center; text-align: left; gap: 12px; }
    .flujo b { height: 56px; }
  }

  /* Trayectoria: monitor de sistemas */
  .trayectoria__in { display: grid; grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr); gap: clamp(32px, 5vw, 72px); align-items: start; }
  .trayectoria__in .seccion__cab, .proceso__in .seccion__cab { position: sticky; top: calc(var(--nav-h) + 40px); margin-bottom: 0; }
  .monitor {
    background: var(--monitor); color: var(--monitor-ink); border-radius: 16px; overflow: hidden;
    border: 1px solid rgb(233 230 221 / .14); box-shadow: 10px 10px 0 var(--signal-soft);
  }
  .monitor__barra { display: flex; align-items: center; gap: 14px; padding: 12px 18px; border-bottom: 1px solid rgb(233 230 221 / .12); color: var(--monitor-ink-2); }
  .monitor__barra .mono { font-size: .6875rem; white-space: nowrap; }
  @media (max-width: 479px) { .monitor__lugar { display: none; } }
  .monitor__luces { display: flex; gap: 6px; }
  .monitor__luces i { width: 10px; height: 10px; border-radius: 50%; border: 1px solid rgb(233 230 221 / .35); }
  .monitor__luces i:first-child { background: var(--signal); border-color: var(--signal); }
  .monitor__hora { margin-left: auto; font-variant-numeric: tabular-nums; }
  .monitor__lista li {
    display: grid; grid-template-columns: 140px minmax(0, 1fr); gap: 2px 18px; padding: 15px 18px;
    border-bottom: 1px solid rgb(233 230 221 / .08);
  }
  .monitor__lista .estado { grid-row: span 2; color: #4CC38A; padding-top: 4px; font-size: .6875rem; }
  .monitor__lista b { font-weight: 650; letter-spacing: -.01em; }
  .monitor__lista li > span:last-child { color: var(--monitor-ink-2); font-size: .9375rem; line-height: 1.45; }
  .monitor__pie {
    display: flex; align-items: center; gap: 10px; padding: 16px 18px; font-family: var(--font-mono); font-size: .8125rem;
    color: #FF8A5C; text-decoration: none; transition: background-color .2s;
  }
  .monitor__pie:hover { background: rgb(255 90 31 / .1); }
  .monitor__pie:focus-visible { outline-offset: -4px; }
  .cursor { display: inline-block; width: .55em; height: 1.1em; background: currentColor; }
  @media (max-width: 899px) {
    .trayectoria__in, .proceso__in { grid-template-columns: minmax(0, 1fr); }
    .trayectoria__in .seccion__cab, .proceso__in .seccion__cab { position: static; }
  }
  @media (max-width: 559px) {
    .monitor__lista li { grid-template-columns: minmax(0, 1fr); }
    .monitor__lista .estado { grid-row: auto; padding: 0 0 4px; }
  }

  /* IA on-premise */
  .ia__in { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, .85fr); gap: clamp(32px, 6vw, 88px); align-items: center; }
  .ia__fig svg { width: 100%; max-width: 420px; height: auto; margin-inline: auto; overflow: visible; }
  .ia__fig .ruta { fill: none; stroke: var(--ink); stroke-width: 1.75; }
  .ia__fig .ruta--nube { stroke: var(--line-strong); stroke-dasharray: 5 6; }
  .ia__fig .corte path { stroke: var(--signal-ink); stroke-width: 3.5; stroke-linecap: round; }
  .ia__fig .caja rect { fill: var(--card); stroke: var(--ink); stroke-width: 1.5; }
  .ia__fig .caja--fuerte rect { stroke-width: 2.5; }
  .ia__fig .caja--nube rect { fill: var(--paper-2); stroke: var(--line-strong); stroke-dasharray: 5 5; }
  .ia__fig .t { font-family: var(--font-sans); font-size: 17px; font-weight: 700; fill: var(--ink); }
  .ia__fig .caja--nube .t { fill: var(--ink-3); }
  .ia__fig .c { font-family: var(--font-mono); font-size: 11.5px; letter-spacing: .05em; text-transform: uppercase; fill: var(--ink-3); }
  .ia__fig .c--signal { fill: var(--signal-ink); }
  .ia__fig .pulso { fill: var(--signal); stroke: rgb(255 90 31 / .28); stroke-width: 10; }
  .ia__prueba { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 20px; }
  .ia__prueba p { max-width: 22em; font-size: .9375rem; color: var(--ink-2); }
  @media (max-width: 899px) { .ia__in { grid-template-columns: minmax(0, 1fr); } }

  /* Cómo trabajamos: un cable que se llena al bajar */
  .proceso__in { display: grid; grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr); gap: clamp(32px, 5vw, 72px); align-items: start; }
  .pasos { position: relative; }
  .pasos::before, .pasos::after { content: ""; position: absolute; left: 23px; top: 38px; bottom: 50px; width: 2px; }
  .pasos::before { background: repeating-linear-gradient(to bottom, var(--line-strong) 0 6px, transparent 6px 11px); }
  .pasos::after { background: var(--signal); transform-origin: top; transform: scaleY(var(--llenado, 1)); }
  .paso { position: relative; display: grid; grid-template-columns: 48px minmax(0, 1fr); gap: 22px; padding: 14px 0 26px; }
  .paso__n {
    position: relative; z-index: 1; display: grid; place-items: center; width: 48px; height: 48px; border-radius: 50%;
    border: 1.5px solid var(--signal); background: var(--signal); color: var(--on-signal); font-size: .8125rem;
    box-shadow: 0 0 0 6px var(--signal-soft);
    transition: background-color .35s, color .35s, border-color .35s, box-shadow .35s;
  }
  .js .paso:not(.encendido) .paso__n { background: var(--paper); border-color: var(--ink); color: var(--ink); box-shadow: none; }
  .paso h3 { font-size: clamp(1.3rem, 2.2vw, 1.6rem); letter-spacing: -.025em; margin-top: 11px; }
  .paso p { margin-top: 6px; color: var(--ink-2); max-width: 32em; }

  /* Por qué */
  .razones { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1.5px solid var(--ink); }
  .razon { padding: 26px 26px 30px 0; border-bottom: 1px solid var(--line); }
  .razon:not(:nth-child(3n+1)) { padding-left: 26px; border-left: 1px solid var(--line); }
  .razon > .mono { color: var(--signal-ink); }
  .razon h3 { font-size: 1.375rem; letter-spacing: -.02em; margin: 14px 0 8px; }
  .razon p { color: var(--ink-2); }
  @media (max-width: 899px) {
    .razones { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .razon:not(:nth-child(3n+1)) { padding-left: 0; border-left: 0; }
    .razon:nth-child(2n) { padding-left: 24px; border-left: 1px solid var(--line); }
  }
  @media (max-width: 559px) {
    .razones { grid-template-columns: minmax(0, 1fr); }
    .razon:nth-child(n) { padding-left: 0; border-left: 0; }
  }

  /* Cobertura */
  .cobertura {
    display: grid; grid-template-columns: minmax(0, 280px) minmax(0, 1fr); gap: clamp(28px, 5vw, 64px); align-items: center;
    margin-top: clamp(40px, 6vw, 72px); padding: clamp(22px, 3vw, 36px);
    background-color: var(--card); border: 1px solid var(--line); border-radius: 18px;
  }
  .radar { position: relative; aspect-ratio: 1; display: grid; place-items: center; }
  .radar span { position: absolute; inset: 0; border: 1.5px solid var(--line-strong); border-radius: 50%; }
  .radar span:nth-child(2) { inset: 18%; }
  .radar span:nth-child(3) { inset: 36%; border-style: dashed; }
  .radar i { position: relative; z-index: 1; width: 14px; height: 14px; border-radius: 50%; background: var(--signal); box-shadow: 0 0 0 6px var(--signal-soft); }
  .radar b { position: absolute; top: calc(50% + 16px); left: 50%; translate: -50% 0; white-space: nowrap; font-weight: 500; color: var(--ink-2); background: var(--card); padding: 0 6px; }
  .radar::before, .radar::after { content: ""; position: absolute; inset: 36%; border: 1.5px solid var(--signal); border-radius: 50%; opacity: 0; }
  .cobertura__datos { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px 32px; }
  .cobertura__datos dt { color: var(--signal-ink); margin-bottom: 6px; }
  .cobertura__datos dd { font-size: 1.0625rem; }
  .cobertura__datos a { display: inline-flex; align-items: center; gap: 4px; font-weight: 600; }
  .cobertura__datos a svg.i { width: 1em; height: 1em; }
  @media (max-width: 767px) {
    .cobertura { grid-template-columns: minmax(0, 1fr); }
    .radar { width: min(240px, 70%); margin-inline: auto; }
    .cobertura__datos { grid-template-columns: minmax(0, 1fr); }
  }

  /* Contacto: canales + armador de mensaje */
  .contacto__in { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: clamp(32px, 5vw, 72px); align-items: start; }
  .canales { display: grid; gap: 10px; margin-top: 32px; }
  .canales a, .canal {
    display: flex; align-items: center; gap: 14px; padding: 14px 16px; background: var(--card);
    border: 1px solid var(--line); border-radius: 12px; text-decoration: none; transition: border-color .2s, transform .2s var(--ease);
  }
  .canales a:hover { border-color: var(--ink); transform: translateX(4px); }
  .canales svg.i { width: 22px; height: 22px; color: var(--signal-ink); }
  .canales b { display: block; font: 500 .75rem/1.4 var(--font-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--ink-3); }
  .armador {
    --esq: 18px;
    display: none; gap: 22px; padding: clamp(22px, 3vw, 36px);
    background-color: var(--card); border: 1px solid var(--line); border-radius: 18px;
  }
  .js .armador { display: grid; }
  .armador fieldset { border: 0; padding: 0; margin: 0; min-width: 0; }
  .armador legend { padding: 0; margin-bottom: 14px; font-weight: 700; font-size: 1.25rem; letter-spacing: -.02em; }
  .armador__chips { display: flex; flex-wrap: wrap; gap: 8px; }
  .armador__chips input { position: absolute; width: 1px; height: 1px; opacity: 0; margin: 0; }
  .armador__chips span {
    display: inline-flex; align-items: center; gap: 8px; min-height: 42px; padding: 0 14px; cursor: pointer;
    border: 1.5px solid var(--line-strong); border-radius: 999px; font-weight: 600; font-size: .9375rem;
    transition: background-color .2s, color .2s, border-color .2s;
  }
  .armador__chips span::before { content: ""; width: 12px; height: 12px; border: 1.5px solid currentColor; border-radius: 3px; }
  .armador__chips span:hover { border-color: var(--ink); }
  .armador__chips input:checked + span { background: var(--ink); color: var(--paper); border-color: var(--ink); }
  .armador__chips input:checked + span::before { background: var(--signal-on-ink); border-color: var(--signal-on-ink); }
  .armador__chips input:focus-visible + span { outline: 2px solid var(--signal); outline-offset: 3px; }
  .armador__campos { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
  .campo { display: grid; gap: 6px; align-content: start; }
  .campo--ancho { grid-column: 1 / -1; }
  .campo label { font-weight: 600; font-size: .9375rem; }
  .campo label span { font-weight: 400; color: var(--ink-3); }
  .campo input, .campo textarea {
    width: 100%; padding: 12px 14px; font-size: 1rem; background: var(--paper);
    border: 1.5px solid var(--line-strong); border-radius: 10px; resize: vertical; transition: border-color .2s, box-shadow .2s;
  }
  .campo input:focus, .campo textarea:focus { outline: none; border-color: var(--signal); box-shadow: 0 0 0 3px var(--signal-soft); }
  .campo input::placeholder, .campo textarea::placeholder { color: var(--ink-3); }
  .armador__vista .mono { color: var(--ink-3); margin-bottom: 8px; }
  .burbuja {
    padding: 12px 14px; min-height: 3.2em; background: var(--paper-2); border: 1px solid var(--line);
    border-radius: 4px 14px 14px 14px; white-space: pre-line; font-size: .9375rem; line-height: 1.5; overflow-wrap: anywhere;
  }
  .armador__enviar { justify-self: start; }
  .armador__nota { margin-top: -8px; font-size: .8125rem; color: var(--ink-3); }
  @media (max-width: 899px) { .contacto__in { grid-template-columns: minmax(0, 1fr); } }
  @media (max-width: 559px) {
    .armador__campos { grid-template-columns: minmax(0, 1fr); }
    .armador__enviar { justify-self: stretch; }
  }

  /* Asistente flotante */
  .chat { position: fixed; right: 16px; bottom: 16px; z-index: 50; display: grid; justify-items: end; gap: 12px; }
  .chat__boton {
    display: inline-flex; align-items: center; justify-content: center; gap: 10px; height: 56px; padding: 0 20px 0 18px;
    background: var(--ink); color: var(--paper); border-radius: 16px; font-weight: 650;
    box-shadow: 4px 4px 0 var(--signal); transition: transform .2s var(--ease), box-shadow .2s var(--ease);
  }
  .chat__boton:hover { transform: translate(-2px, -2px); box-shadow: 6px 6px 0 var(--signal); }
  .chat__boton svg.i { width: 22px; height: 22px; }
  @media (max-width: 559px) {
    .chat { right: 12px; bottom: 12px; }
    .chat__boton { width: 56px; padding: 0; }
    .chat__boton span { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
  }
  .chat__aviso {
    display: flex; align-items: center; gap: 2px; padding: 4px 4px 4px 14px; background: var(--card);
    border: 1.5px solid var(--ink); border-radius: 12px; box-shadow: 3px 3px 0 var(--line-strong);
  }
  .chat__aviso > button:first-child { padding: 8px 4px; font-weight: 600; font-size: .9375rem; }
  .chat__aviso-x { display: grid; place-items: center; width: 32px; height: 32px; border-radius: 8px; color: var(--ink-3); }
  .chat__aviso-x:hover { color: var(--ink); background: var(--paper-2); }
  .chat__aviso-x svg.i { width: 16px; height: 16px; }
  .chat__panel {
    display: flex; flex-direction: column; width: min(380px, calc(100vw - 24px)); max-height: min(600px, calc(100dvh - 110px));
    background: var(--card); border: 1.5px solid var(--ink); border-radius: 18px; overflow: hidden;
    box-shadow: 8px 8px 0 var(--signal-soft), 0 24px 48px -24px rgb(0 0 0 / .4);
    transform-origin: bottom right; transition: opacity .22s var(--ease), transform .22s var(--ease);
  }
  .chat:not(.abierto) .chat__panel { opacity: 0; transform: translateY(12px) scale(.97); }
  .chat__cab { display: flex; align-items: center; gap: 12px; padding: 14px 14px 14px 16px; border-bottom: 1px solid var(--line); }
  .chat__avatar { --logo-esq: var(--signal); display: grid; place-items: center; width: 40px; height: 40px; flex: none; border-radius: 11px; background: var(--ink); color: var(--paper); }
  .chat__avatar svg { width: 30px; height: auto; }
  .chat__t { font-weight: 700; line-height: 1.2; }
  .chat__sub { display: flex; align-items: center; gap: 6px; margin-top: 3px; font-size: .6875rem; color: var(--ok); }
  .chat__sub::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
  .chat__cab .icon-btn { margin-left: auto; }
  .chat__msgs { flex: 1; min-height: 180px; overflow-y: auto; overscroll-behavior: contain; padding: 16px; display: flex; flex-direction: column; gap: 10px; }
  .msg { max-width: 88%; padding: 10px 13px; border-radius: 14px; font-size: .9375rem; line-height: 1.5; white-space: pre-line; overflow-wrap: anywhere; }
  .msg--bot { align-self: flex-start; background: var(--paper-2); border: 1px solid var(--line); border-top-left-radius: 4px; }
  .msg--yo { align-self: flex-end; background: var(--ink); color: var(--paper); border-top-right-radius: 4px; }
  .msg--error { border-color: var(--signal); }
  .msg a { color: var(--signal-ink); font-weight: 600; }
  .msg--escribiendo { display: inline-flex; gap: 5px; padding: 14px; }
  .msg--escribiendo i { width: 7px; height: 7px; border-radius: 50%; background: var(--ink-3); }
  .chat__rapidas { display: flex; flex-wrap: wrap; gap: 6px; }
  .chat__rapidas button {
    padding: 7px 11px; border: 1.5px solid var(--line-strong); border-radius: 999px; font-size: .875rem; font-weight: 600;
    transition: border-color .2s, background-color .2s;
  }
  .chat__rapidas button:hover { border-color: var(--ink); background: var(--paper-2); }
  .chat__form { display: flex; gap: 8px; padding: 12px; border-top: 1px solid var(--line); }
  .chat__form input {
    flex: 1; min-width: 0; padding: 12px 14px; font-size: 1rem; background: var(--paper);
    border: 1.5px solid var(--line-strong); border-radius: 12px;
  }
  .chat__form input:focus { outline: none; border-color: var(--signal); box-shadow: 0 0 0 3px var(--signal-soft); }
  .chat__enviar { display: grid; place-items: center; width: 48px; flex: none; border-radius: 12px; background: var(--signal); color: var(--on-signal); transition: opacity .2s; }
  .chat__enviar[aria-disabled="true"] { opacity: .45; cursor: progress; }

  /* Pie de página */
  .pie { border-top: 1.5px solid var(--ink); background: var(--paper-2); padding-top: clamp(48px, 7vw, 80px); }
  .pie__in { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr) minmax(0, 1fr); gap: 40px; padding-bottom: 48px; }
  .pie__marca p { margin-top: 16px; max-width: 30em; color: var(--ink-2); }
  .pie h2 { font-size: .75rem; font-family: var(--font-mono); font-weight: 500; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 14px; }
  .pie ul { display: grid; gap: 8px; }
  .pie ul a { text-decoration: none; color: var(--ink-2); transition: color .2s; }
  .pie ul a:hover { color: var(--ink); text-decoration: underline; }
  .cartela {
    display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)) minmax(0, 2fr);
    border: 1.5px solid var(--ink); border-bottom: 0; font-family: var(--font-mono); font-size: .6875rem; letter-spacing: .06em; text-transform: uppercase;
  }
  .cartela > div { padding: 10px 12px; border-right: 1px solid var(--line-strong); }
  .cartela > div:last-child { border-right: 0; }
  .cartela > div > span:first-child { display: block; color: var(--ink-3); margin-bottom: 4px; }
  @media (max-width: 767px) {
    .pie__in { grid-template-columns: minmax(0, 1fr); gap: 32px; }
    .cartela { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .cartela > div { border-bottom: 1px solid var(--line-strong); }
    .cartela > div:nth-child(2n) { border-right: 0; }
    .cartela > div:last-child { grid-column: 1 / -1; }
  }
}

/* ───────────── movimiento (sólo si el usuario no pidió reducirlo) ───────────── */
@layer motion {
  @media (prefers-reduced-motion: no-preference) {
    /* Entrada del hero, escalonada */
    .hero__txt > * { animation: sube .8s var(--ease) both; }
    .hero__txt > :nth-child(2) { animation-delay: .08s; }
    .hero__txt > :nth-child(3) { animation-delay: .18s; }
    .hero__txt > :nth-child(4) { animation-delay: .26s; }
    .hero__txt > :nth-child(5) { animation-delay: .32s; }
    .hero__fig { animation: aparece 1s .3s var(--ease) both; }
    .hero__cable .base { stroke-dasharray: 1; stroke-dashoffset: 1; animation: traza 1.1s .55s var(--ease) forwards; }
    .hero__cable .luz  { animation: corre 2.6s 1.7s linear infinite; }
    .esquema .cable { stroke-dasharray: 1; stroke-dashoffset: 1; animation: traza 1.6s .5s var(--ease) forwards; }

    /* Apariciones al hacer scroll (sólo con JS; si el JS no carga, todo queda visible) */
    .js [data-aparece] {
      opacity: 0; translate: 0 18px;
      transition: opacity .7s var(--ease), translate .7s var(--ease);
      transition-delay: calc(var(--i, 0) * 70ms);
    }
    .js [data-aparece].visible, .js.reveal-all [data-aparece] { opacity: 1; translate: none; }

    /* Tarjetas al cambiar de pestaña */
    .js .tarjetas.entra > li { animation: sube .5s var(--ease) both; animation-delay: calc(var(--i, 0) * 45ms); }

    /* Pulso que recorre el flujo de cada industria (en pausa fuera de pantalla) */
    .flujo::after { animation: viaja 3.4s linear infinite; }
    .flujo.pausa::after { animation-play-state: paused; }

    /* Ondas de cobertura y cursor del monitor */
    .radar::before, .radar::after { animation: onda 3.2s var(--ease) infinite; }
    .radar::after { animation-delay: 1.6s; }
    .cursor { animation: parpadeo 1.1s steps(1) infinite; }
    .msg--escribiendo i { animation: rebota 1.2s var(--ease) infinite; }
    .msg--escribiendo i:nth-child(2) { animation-delay: .15s; }
    .msg--escribiendo i:nth-child(3) { animation-delay: .3s; }

    /* Las capas de servicios se separan al entrar en pantalla (Chrome/Edge 115+, Safari 26+) */
    @supports (animation-timeline: view()) {
      .capas .placa--a { animation: separa-a linear both; animation-timeline: --capas; animation-range: cover 0px cover 420px; }
      .capas .placa--c { animation: separa-c linear both; animation-timeline: --capas; animation-range: cover 0px cover 420px; }
    }
  }
  @media (max-width: 599px) and (prefers-reduced-motion: no-preference) {
    .flujo::after { animation-name: viaja-v; }
  }

  /* Cambio de panel de industria */
  :root[data-vt="panel"]::view-transition-old(root),
  :root[data-vt="panel"]::view-transition-new(root) { animation: none; }
  ::view-transition-old(rubro) { animation: sale .22s var(--ease) both; }
  ::view-transition-new(rubro) { animation: entra .38s var(--ease) both; }

  @keyframes viaja { from { left: 12.5%; } to { left: 87.5%; } }
  @keyframes viaja-v { from { top: 22px; } to { top: calc(100% - 34px); } }
  @keyframes onda { from { transform: scale(.4); opacity: .9; } to { transform: scale(2.7); opacity: 0; } }
  @keyframes parpadeo { 50% { opacity: 0; } }
  @keyframes rebota { 0%, 60%, 100% { transform: translateY(0); opacity: .5; } 30% { transform: translateY(-4px); opacity: 1; } }
  @keyframes separa-a { from { transform: translateY(80px); } }
  @keyframes separa-c { from { transform: translateY(-80px); } }
  @keyframes sale { to { opacity: 0; transform: translateX(-28px); } }
  @keyframes entra { from { opacity: 0; transform: translateX(28px); } }
  /* Cambio de tema: círculo que se abre desde el botón */
  :root[data-vt="tema"]::view-transition-old(root),
  :root[data-vt="tema"]::view-transition-new(root) { animation: none; mix-blend-mode: normal; }
  :root[data-vt="tema"]::view-transition-new(root) { animation: revela .6s var(--ease); }
  @keyframes revela {
    from { clip-path: circle(0 at var(--vt-x, 100%) var(--vt-y, 0)); }
    to   { clip-path: circle(150vmax at var(--vt-x, 100%) var(--vt-y, 0)); }
  }

  @keyframes sube { from { opacity: 0; translate: 0 22px; } }
  @keyframes aparece { from { opacity: 0; scale: .96; } }
  @keyframes traza { to { stroke-dashoffset: 0; } }
  @keyframes corre { 0% { stroke-dashoffset: .09; opacity: 1; } 70% { stroke-dashoffset: -1; opacity: 1; } 71%, 100% { stroke-dashoffset: -1; opacity: 0; } }

  @media (prefers-reduced-motion: reduce) {
    .esquema .pulso, .hero__cable .luz, .ia__fig .pulso,
    .flujo::after, .radar::before, .radar::after { display: none; }
  }
}