/* ==========================================================================
   EXPRESS WEBSITE — Sistema visual
   Estrategia de color: Drenched. El ámbar es el estado de solución.
   Ver DESIGN.md para la justificación de cada decisión.
   ========================================================================== */

/* --- Tokens ------------------------------------------------------------- */

:root {
  /* Superficies. Croma exactamente 0: la calidez la carga solo la marca. */
  --void:        oklch(0.130 0     0);
  --deep:        oklch(0.178 0     0);
  --raised:      oklch(0.222 0     0);
  --line:        oklch(0.300 0     0);

  /* Marca */
  --volt:        oklch(0.842 0.165 91.3);
  --volt-dim:    oklch(0.720 0.142 88);

  /* Acento cobre */
  --ember:       oklch(0.400 0.120 40);
  --ember-deep:  oklch(0.300 0.094 38);

  /* Tinta */
  --paper:       oklch(0.965 0.004 91);
  --paper-mute:  oklch(0.760 0.008 91);
  --paper-faint: oklch(0.640 0.010 91);

  /* Roles de sección: los redefine cada superficie drench */
  --surface:     var(--void);
  --ink:         var(--paper);
  --ink-mute:    var(--paper-mute);
  --ink-faint:   var(--paper-faint);
  --rule:        var(--line);
  --mark:        var(--volt);

  /* Tipografía */
  --font-sans: "Archivo", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "Azeret Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --t-hero:  clamp(2.75rem, 7vw + 0.5rem, 5.75rem);
  --t-h2:    clamp(2rem, 4vw + 0.5rem, 3.5rem);
  --t-h3:    clamp(1.35rem, 1.2vw + 1rem, 1.75rem);
  --t-lead:  clamp(1.125rem, 0.7vw + 1rem, 1.375rem);
  --t-body:  clamp(1rem, 0.35vw + 0.9rem, 1.125rem);
  --t-small: 0.9375rem;
  --t-mono:  0.8125rem;

  /* Espaciado, escala de 4px */
  --s-1: 0.25rem;  --s-2: 0.5rem;   --s-3: 0.75rem;  --s-4: 1rem;
  --s-5: 1.25rem;  --s-6: 1.5rem;   --s-8: 2rem;     --s-10: 2.5rem;
  --s-12: 3rem;    --s-16: 4rem;    --s-20: 5rem;    --s-24: 6rem;

  /* Ritmo vertical variable */
  --pad-section: clamp(6rem, 11vh, 9rem);
  --pad-drench:  clamp(7rem, 14vh, 11rem);
  --container:   min(100% - 2.5rem, 76rem);

  /* Movimiento */
  --ease: cubic-bezier(0.25, 1, 0.5, 1);
  --d-micro: 120ms;
  --d-trans: 280ms;
  --d-reveal: 620ms;

  /* Escala z semántica */
  --z-base: 0; --z-sticky: 100; --z-nav: 200; --z-overlay: 300; --z-toast: 400;
}

/* --- Reset -------------------------------------------------------------- */

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 6rem;
}

body {
  font-family: var(--font-sans);
  font-size: var(--t-body);
  font-weight: 400;
  line-height: 1.65;
  background: var(--void);
  color: var(--paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, svg, video { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; color: inherit; }
h1, h2, h3, h4 { font-weight: 700; line-height: 1.05; text-wrap: balance; letter-spacing: -0.03em; }
p { text-wrap: pretty; }

::selection { background: var(--volt); color: var(--void); }

:focus-visible {
  outline: 2px solid var(--mark);
  outline-offset: 3px;
  border-radius: 1px;
}

/* --- Utilidades --------------------------------------------------------- */

.container { width: var(--container); margin-inline: auto; }

.skip-link {
  position: absolute;
  left: var(--s-4); top: var(--s-4);
  z-index: var(--z-toast);
  padding: var(--s-3) var(--s-5);
  background: var(--volt);
  color: var(--void);
  font-weight: 700;
  transform: translateY(-160%);
  transition: transform var(--d-trans) var(--ease);
}
.skip-link:focus-visible { transform: translateY(0); }

.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip-path: inset(50%); white-space: nowrap;
}

.mono {
  font-family: var(--font-mono);
  font-size: var(--t-mono);
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--ink-faint);
  font-variant-numeric: tabular-nums;
}

/* --- Secciones ---------------------------------------------------------- */

.section {
  background: var(--surface);
  color: var(--ink);
  padding-block: var(--pad-section);
  position: relative;
}

/* Superficie drench ámbar: el estado de solución. Tinta oscura, siempre. */
.section--volt {
  --surface:   var(--volt);
  --ink:       var(--void);
  --ink-mute:  var(--ember-deep);
  --ink-faint: var(--ember-deep);
  --rule:      color-mix(in oklab, var(--ember-deep) 28%, transparent);
  --mark:      var(--void);
  padding-block: var(--pad-drench);
}

/* Superficie drench cobre: la invitación al diagnóstico. Tinta clara. */
.section--ember {
  --surface:   var(--ember);
  --ink:       var(--paper);
  --ink-mute:  color-mix(in oklab, var(--paper) 82%, var(--ember));
  --ink-faint: color-mix(in oklab, var(--paper) 72%, var(--ember));
  --rule:      color-mix(in oklab, var(--paper) 26%, transparent);
  --mark:      var(--volt);
  padding-block: var(--pad-drench);
}

.section--deep { --surface: var(--deep); }

.section__head { max-width: 46rem; margin-bottom: clamp(3rem, 6vw, 4.5rem); }
.section__title { font-size: var(--t-h2); }
.section__lead {
  margin-top: var(--s-5);
  font-size: var(--t-lead);
  line-height: 1.55;
  color: var(--ink-mute);
  max-width: 60ch;
}

/* --- Botones ------------------------------------------------------------ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
  padding: var(--s-4) var(--s-8);
  border: 1px solid transparent;
  border-radius: 2px;
  font-weight: 700;
  font-size: var(--t-small);
  letter-spacing: -0.01em;
  cursor: pointer;
  transition: background var(--d-micro) var(--ease),
              border-color var(--d-micro) var(--ease),
              color var(--d-micro) var(--ease),
              transform var(--d-micro) var(--ease);
}

.btn--primary { background: var(--volt); color: var(--void); }
.btn--primary:hover { background: var(--volt-dim); transform: translateY(-1px); }
.btn--primary:active { transform: translateY(0); }

.btn--ghost { border-color: var(--rule); color: var(--ink); }
.btn--ghost:hover { border-color: var(--mark); transform: translateY(-1px); }

/* Sobre superficie ámbar el primario se invierte a tinta oscura */
.section--volt .btn--primary { background: var(--void); color: var(--volt); }
.section--volt .btn--primary:hover { background: var(--ember-deep); color: var(--volt); }
.section--ember .btn--primary { background: var(--volt); color: var(--void); }

/* El formulario es un panel oscuro dentro de la sección ámbar, así que la
   inversión de arriba lo dejaba sin relleno visible: el botón se leía como
   un enlace. Dentro del panel vuelve a ser ámbar sólido. */
.section--volt .form .btn--primary { background: var(--volt); color: var(--void); }
.section--volt .form .btn--primary:hover { background: var(--volt-dim); color: var(--void); }

.btn__arrow { transition: transform var(--d-trans) var(--ease); }
.btn:hover .btn__arrow { transform: translateX(3px); }

/* --- Movimiento: revelado ----------------------------------------------- */
/* Visible por defecto. Solo con JS activo se prepara la animación. */

/* Solo se anima lo que el JS "arma" al iniciar, y arma únicamente lo que está
   bajo el pliegue. Lo que ya es visible jamás se oculta: ni en un render sin
   scroll, ni en impresión, ni en un rastreador. */
.js-motion [data-reveal][data-armed] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity var(--d-reveal) var(--ease),
              transform var(--d-reveal) var(--ease);
  transition-delay: var(--reveal-delay, 0ms);
}
.js-motion [data-reveal][data-armed].is-revealed { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .js-motion [data-reveal] { opacity: 1; transform: none; }
  .js-motion [data-reveal][data-armed] { opacity: 1; transform: none; }
}

/* --- Navegación --------------------------------------------------------- */

.nav {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: var(--z-nav);
  background: color-mix(in oklab, var(--void) 82%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--d-trans) var(--ease),
              background var(--d-trans) var(--ease);
}
.nav.is-stuck { border-bottom-color: var(--line); background: color-mix(in oklab, var(--void) 94%, transparent); }

.nav__inner {
  width: var(--container);
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-6);
  min-height: 4.5rem;
}

.nav__brand { display: flex; align-items: baseline; gap: var(--s-3); flex-shrink: 0; }
.nav__mark {
  font-weight: 800;
  font-size: 1.0625rem;
  letter-spacing: -0.035em;
  color: var(--paper);
}
.nav__mark .brand-accent { color: var(--volt); }
.nav__desc {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--paper-faint);
  letter-spacing: 0.01em;
}

.nav__links { display: flex; align-items: center; gap: var(--s-6); list-style: none; padding: 0; }
.nav__link {
  position: relative;
  font-size: var(--t-small);
  color: var(--paper-mute);
  padding-block: var(--s-2);
  transition: color var(--d-micro) var(--ease);
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: var(--volt);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--d-trans) var(--ease);
}
.nav__link:hover { color: var(--paper); }
.nav__link:hover::after { transform: scaleX(1); }

.nav__actions { display: flex; align-items: center; gap: var(--s-4); }
.nav__actions .btn { padding: var(--s-3) var(--s-5); }

.nav__toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: var(--s-3);
  cursor: pointer;
}
.nav__toggle-bar {
  display: block; width: 18px; height: 1.5px;
  background: var(--paper);
  transition: transform var(--d-trans) var(--ease), opacity var(--d-micro) var(--ease);
}
.nav__toggle-bar + .nav__toggle-bar { margin-top: 4px; }
.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); }

@media (max-width: 68rem) {
  .nav__toggle { display: block; }
  .nav__links {
    position: fixed;
    inset: 4.5rem 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--deep);
    border-bottom: 1px solid var(--line);
    padding: var(--s-2) max(1.25rem, calc((100vw - var(--container)) / 2)) var(--s-6);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--d-trans) var(--ease), transform var(--d-trans) var(--ease);
  }
  .nav__links.is-open { opacity: 1; transform: none; pointer-events: auto; }
  /* display:block es necesario: en línea, el borde inferior solo abarcaba
     el ancho del texto y los separadores salían cortados. */
  .nav__link {
    display: block;
    padding-block: var(--s-4);
    border-bottom: 1px solid var(--line);
    font-size: 1.0625rem;
    color: var(--paper);
  }
  .nav__link::after { display: none; }

  /* El CTA sale de la barra y entra al panel: en la barra empujaba el botón
     de menú fuera de pantalla y lo dejaba inalcanzable. */
  .nav__inner > .nav__actions > .btn { display: none; }
  .nav__cta-item { margin-top: var(--s-5); }
  .nav__cta-item .btn { width: 100%; justify-content: center; }
}

/* El descriptor de marca solo cabe junto a los 5 enlaces y el CTA a partir
   de 80rem. Bajo ese ancho empujaba el CTA fuera de la pantalla. */
@media (max-width: 80rem) {
  .nav__desc { display: none; }
}

/* En escritorio el CTA vive en la barra, no en la lista. */
@media (min-width: 68.0625rem) {
  .nav__cta-item { display: none; }
}

/* --- Hero --------------------------------------------------------------- */

.hero {
  position: relative;
  padding-block: clamp(9rem, 20vh, 13rem) clamp(5rem, 9vh, 7rem);
  overflow: hidden;
}

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(3rem, 6vw, 5rem);
  align-items: center;
}

.hero__status {
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
  margin-bottom: var(--s-6);
  font-family: var(--font-mono);
  font-size: var(--t-mono);
  color: var(--paper-mute);
}
.hero__pulse {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--volt);
  box-shadow: 0 0 0 0 color-mix(in oklab, var(--volt) 70%, transparent);
  animation: pulse 2.4s var(--ease) infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 color-mix(in oklab, var(--volt) 60%, transparent); }
  70%  { box-shadow: 0 0 0 9px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}

.hero__title { font-size: var(--t-hero); max-width: 15ch; }
.hero__title em { font-style: normal; color: var(--volt); }

.hero__lead {
  margin-top: var(--s-8);
  font-size: var(--t-lead);
  line-height: 1.55;
  color: var(--paper-mute);
  max-width: 52ch;
}

.hero__actions { margin-top: var(--s-10); display: flex; flex-wrap: wrap; gap: var(--s-4); }

.hero__meta {
  margin-top: clamp(3rem, 5vw, 4rem);
  padding-top: var(--s-6);
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-3) var(--s-6);
}
.hero__meta span { font-family: var(--font-mono); font-size: var(--t-mono); color: var(--paper-faint); }
.hero__meta span::before { content: "·"; margin-right: var(--s-3); color: var(--volt); }
.hero__meta span:first-child::before { content: none; }

/* Diagrama de sistema: representa integración, no es ornamento */
.hero__diagram { position: relative; width: 100%; }
.diagram { width: 100%; height: auto; overflow: visible; }
.diagram__edge { fill: none; stroke: var(--line); stroke-width: 1; }
.diagram__flow {
  fill: none;
  stroke: var(--volt);
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-dasharray: 12 188;
  filter: drop-shadow(0 0 4px color-mix(in oklab, var(--volt) 55%, transparent));
  animation: flow 3.4s linear infinite;
}
@keyframes flow { from { stroke-dashoffset: 200; } to { stroke-dashoffset: 0; } }

.diagram__node { fill: var(--deep); stroke: var(--line); stroke-width: 1; }
.diagram__node--live { stroke: var(--volt); }
.diagram__label {
  font-family: var(--font-mono);
  font-size: 9px;
  fill: var(--paper-mute);
  letter-spacing: 0.02em;
}
.diagram__core { fill: var(--volt); }
.diagram__core-label { font-family: var(--font-sans); font-size: 10px; font-weight: 700; fill: var(--void); }
.diagram__ring {
  fill: none;
  stroke: var(--volt);
  stroke-width: 1;
  opacity: 0.35;
  transform-origin: 50% 50%;
  animation: ring 3s var(--ease) infinite;
}
@keyframes ring {
  0%   { transform: scale(0.85); opacity: 0.45; }
  100% { transform: scale(1.45); opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .diagram__flow { animation: none; stroke-dasharray: none; opacity: 0.6; }
  .diagram__ring, .hero__pulse { animation: none; }
}

@media (max-width: 64rem) {
  .hero__grid { grid-template-columns: 1fr; gap: var(--s-16); }
  .hero__title { max-width: 18ch; }
  .hero__diagram { max-width: 32rem; }
}

/* --- Servicios: índice interactivo, no grilla de tarjetas --------------- */

.services__layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(2.5rem, 5vw, 4.5rem);
  align-items: start;
}

.services__list { list-style: none; padding: 0; border-top: 1px solid var(--line); }

.services__tab {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--s-4);
  width: 100%;
  padding: var(--s-5) var(--s-4) var(--s-5) var(--s-2);
  background: none;
  border: 0;
  border-bottom: 1px solid var(--line);
  text-align: left;
  cursor: pointer;
  color: var(--paper-mute);
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  transition: color var(--d-trans) var(--ease), padding-left var(--d-trans) var(--ease);
}
/* Traza ámbar que se dibuja: reemplaza el side-stripe prohibido */
.services__tab::before {
  content: "";
  position: absolute;
  left: 0; top: 50%;
  width: 0; height: 1px;
  background: var(--volt);
  transform: translateY(-50%);
  transition: width var(--d-trans) var(--ease);
}
.services__tab:hover { color: var(--paper); }
.services__tab[aria-selected="true"] { color: var(--volt); padding-left: var(--s-8); }
.services__tab[aria-selected="true"]::before { width: var(--s-6); }

.services__num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--paper-faint);
  font-variant-numeric: tabular-nums;
  transition: color var(--d-trans) var(--ease);
}
.services__tab[aria-selected="true"] .services__num { color: var(--volt); }

.services__panel-wrap {
  position: sticky;
  top: 7rem;
  background: var(--deep);
  border: 1px solid var(--line);
  padding: clamp(2rem, 3.5vw, 3rem);
  min-height: 22rem;
}
.services__panel[hidden] { display: none; }
.services__panel-title { font-size: var(--t-h3); color: var(--paper); }
.services__panel-body { margin-top: var(--s-5); color: var(--paper-mute); max-width: 52ch; }

.services__tags {
  margin-top: var(--s-8);
  padding-top: var(--s-6);
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
  list-style: none;
}
.services__tag {
  padding: var(--s-2) var(--s-4);
  border: 1px solid var(--line);
  border-radius: 2px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--paper-mute);
}

/* Acordeón nativo en móvil */
.services__accordion { display: none; border-top: 1px solid var(--line); }
.services__item { border-bottom: 1px solid var(--line); }
.services__summary {
  display: flex;
  align-items: center;
  gap: var(--s-4);
  padding: var(--s-5) 0;
  cursor: pointer;
  font-weight: 600;
  font-size: 1.0625rem;
  letter-spacing: -0.015em;
  list-style: none;
}
.services__summary::-webkit-details-marker { display: none; }
.services__sign { margin-left: auto; color: var(--volt); transition: transform var(--d-trans) var(--ease); flex-shrink: 0; }
.services__item[open] .services__sign { transform: rotate(45deg); }
.services__item[open] .services__summary { color: var(--volt); }
.services__detail { padding-bottom: var(--s-6); color: var(--paper-mute); }
.services__detail .services__tags { margin-top: var(--s-5); }

@media (max-width: 60rem) {
  .services__layout { display: none; }
  .services__accordion { display: block; }
}

/* --- Problemas: lista tipográfica --------------------------------------- */

.problems__layout {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(2.5rem, 5vw, 5rem);
  align-items: start;
}
.problems__intro { position: sticky; top: 7rem; }
.problems__intro .section__title { font-size: var(--t-h2); }

.problems__list { list-style: none; padding: 0; counter-reset: problem; }
.problems__item {
  display: flex;
  gap: var(--s-5);
  padding: var(--s-5) 0;
  border-bottom: 1px solid var(--line);
  transition: color var(--d-trans) var(--ease);
}
.problems__item:first-child { border-top: 1px solid var(--line); }
.problems__item::before {
  counter-increment: problem;
  content: counter(problem, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--paper-faint);
  padding-top: 0.35em;
  flex-shrink: 0;
  font-variant-numeric: tabular-nums;
  transition: color var(--d-trans) var(--ease);
}
.problems__item:hover { color: var(--volt); }
.problems__item:hover::before { color: var(--volt); }

@media (max-width: 60rem) {
  .problems__layout { grid-template-columns: 1fr; }
  .problems__intro { position: static; }
}

/* --- Soluciones (drench ámbar): el pivote ------------------------------- */

.solutions__title { font-size: clamp(2.25rem, 5vw + 0.5rem, 4rem); max-width: 20ch; }
.solutions__lead { margin-top: var(--s-6); font-size: var(--t-lead); color: var(--ink-mute); max-width: 58ch; }

.solutions__list {
  margin-top: clamp(3.5rem, 7vw, 5.5rem);
  list-style: none;
  padding: 0;
  border-top: 1px solid var(--rule);
}
.solutions__item {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: var(--s-6) clamp(2rem, 5vw, 4rem);
  padding: clamp(1.75rem, 3vw, 2.5rem) 0;
  border-bottom: 1px solid var(--rule);
  align-items: baseline;
}
.solutions__name {
  font-size: clamp(1.25rem, 1.5vw + 0.9rem, 1.875rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--ink);
}
.solutions__desc { color: var(--ink-mute); max-width: 56ch; }

@media (max-width: 48rem) {
  .solutions__item { grid-template-columns: 1fr; gap: var(--s-3); }
}

/* --- Proceso: única secuencia numerada del sitio ------------------------ */

/* Cinco columnas exactas en escritorio: es una secuencia de cinco etapas y
   partirla en 4 + 1 la rompe como secuencia. Bajo 68rem se apila en vertical,
   que sigue leyéndose en orden. auto-fit no sirve aquí porque el número de
   columnas es semántico, no un acomodo libre. */
.process__track {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  /* Es un <ol>: sin esto el navegador dibuja sus propios marcadores "1." "2."
     junto a la numeración de la maqueta, y su sangría descuadra la grilla. */
  list-style: none;
  padding: 0;
  margin: 0;
}
.process__step {
  background: var(--void);
  padding: clamp(1.5rem, 2.2vw, 2rem) clamp(1.125rem, 1.5vw, 1.5rem) clamp(2rem, 3vw, 2.75rem);
  position: relative;
  transition: background var(--d-trans) var(--ease);
}

@media (max-width: 68rem) {
  .process__track { grid-template-columns: 1fr; }
}
.process__step::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 2px;
  background: var(--volt);
  transform-origin: left;
  transition: transform var(--d-reveal) var(--ease);
}
/* Sin JS el subrayado ya está dibujado; con JS se anima al entrar en pantalla. */
.js-motion .process__step[data-armed]::after { transform: scaleX(0); }
.js-motion .process__step[data-armed].is-revealed::after { transform: scaleX(1); }
.process__step:hover { background: var(--deep); }
.process__step.is-revealed::after { transform: scaleX(1); }
.process__num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--volt);
  font-variant-numeric: tabular-nums;
}
.process__name { margin-top: var(--s-5); font-size: 1.125rem; letter-spacing: -0.02em; }
.process__text { margin-top: var(--s-3); font-size: 0.875rem; line-height: 1.6; color: var(--paper-mute); }

@media (min-width: 68.0625rem) {
  .process__name { font-size: 1.0625rem; }
}

/* --- Proyectos ---------------------------------------------------------- */

.projects__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(17rem, 100%), 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.project {
  background: var(--void);
  padding: clamp(2rem, 3vw, 2.75rem);
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
  transition: background var(--d-trans) var(--ease);
}
.project:hover { background: var(--deep); }
.project__mark { color: var(--volt); }
.project__name { font-size: 1.1875rem; letter-spacing: -0.02em; }
.project__text { font-size: var(--t-small); color: var(--paper-mute); }

/* --- Consultoría (drench cobre) ----------------------------------------- */

.consult__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: clamp(3rem, 6vw, 5rem);
  align-items: center;
}
.consult__title { font-size: var(--t-h2); max-width: 18ch; }
.consult__body { margin-top: var(--s-6); color: var(--ink-mute); max-width: 52ch; }
.consult__body + .consult__body { margin-top: var(--s-4); }
.consult__actions { margin-top: var(--s-10); }

.consult__flow { list-style: none; padding: 0; display: flex; flex-direction: column; gap: 1px; }
.consult__stage {
  display: flex;
  align-items: center;
  gap: var(--s-4);
  padding: var(--s-5) var(--s-6);
  background: color-mix(in oklab, var(--ember-deep) 55%, transparent);
  border-left: 1px solid var(--rule);
  transition: background var(--d-trans) var(--ease), transform var(--d-trans) var(--ease);
}
.consult__stage:hover { background: color-mix(in oklab, var(--ember-deep) 80%, transparent); transform: translateX(4px); }
.consult__stage-num { font-family: var(--font-mono); font-size: 0.75rem; color: var(--volt); }
.consult__stage-name { font-weight: 600; letter-spacing: -0.015em; }

@media (max-width: 60rem) { .consult__grid { grid-template-columns: 1fr; } }

/* --- Nosotros ----------------------------------------------------------- */

.about__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(2.5rem, 5vw, 4.5rem);
  align-items: start;
}
.about__statement { font-size: var(--t-h3); line-height: 1.35; letter-spacing: -0.02em; max-width: 24ch; }
.about__statement em { font-style: normal; color: var(--volt); }
.about__body { color: var(--paper-mute); }
.about__body p + p { margin-top: var(--s-5); }

.about__disciplines {
  margin-top: var(--s-10);
  padding-top: var(--s-6);
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
  list-style: none;
}

@media (max-width: 60rem) { .about__grid { grid-template-columns: 1fr; } }

/* --- Contacto (drench ámbar): el cierre ---------------------------------- */

.contact__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: clamp(3rem, 6vw, 5rem);
  align-items: start;
}
.contact__title { font-size: var(--t-h2); max-width: 16ch; }
.contact__lead { margin-top: var(--s-6); font-size: var(--t-lead); color: var(--ink-mute); max-width: 46ch; }

.contact__direct { margin-top: clamp(2.5rem, 5vw, 3.5rem); display: flex; flex-direction: column; gap: var(--s-5); }
.contact__channel { display: flex; flex-direction: column; gap: var(--s-1); }
.contact__channel-label { font-family: var(--font-mono); font-size: var(--t-mono); color: var(--ink-faint); }
.contact__channel-value {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--ink);
  width: fit-content;
  border-bottom: 1px solid color-mix(in oklab, var(--void) 35%, transparent);
  transition: border-color var(--d-micro) var(--ease);
}
a.contact__channel-value:hover { border-bottom-color: var(--void); }

/* Panel oscuro sobre ámbar: máximo contraste, campos legibles */
.form {
  background: var(--void);
  border: 1px solid var(--ember-deep);
  padding: clamp(1.75rem, 3.5vw, 2.75rem);
  color: var(--paper);
}
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s-5); }
.form__field { display: flex; flex-direction: column; gap: var(--s-2); margin-bottom: var(--s-5); }
.form__label { font-family: var(--font-mono); font-size: var(--t-mono); color: var(--paper-mute); }
.form__optional { color: var(--paper-faint); text-transform: none; }

.form__input, .form__select, .form__textarea {
  width: 100%;
  padding: var(--s-3) var(--s-4);
  background: var(--raised);
  color: var(--paper);
  border: 1px solid transparent;
  border-bottom: 1px solid var(--line);
  border-radius: 0;
  transition: border-color var(--d-micro) var(--ease), background var(--d-micro) var(--ease);
}
.form__input::placeholder, .form__textarea::placeholder { color: var(--paper-faint); }
.form__input:hover, .form__select:hover, .form__textarea:hover { background: color-mix(in oklab, var(--raised) 80%, var(--paper)); }
.form__input:focus, .form__select:focus, .form__textarea:focus {
  outline: none;
  border-bottom-color: var(--volt);
  border-bottom-width: 2px;
  padding-bottom: calc(var(--s-3) - 1px);
}
.form__input:focus-visible, .form__select:focus-visible, .form__textarea:focus-visible {
  outline: 2px solid var(--volt);
  outline-offset: 2px;
}
.form__textarea { resize: vertical; min-height: 7rem; }
.form__select {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--volt) 50%),
                    linear-gradient(135deg, var(--volt) 50%, transparent 50%);
  background-position: calc(100% - 18px) 50%, calc(100% - 13px) 50%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  padding-right: var(--s-10);
  cursor: pointer;
}
.form__select option { background: var(--raised); color: var(--paper); }

.form__submit { width: 100%; justify-content: center; margin-top: var(--s-2); }
.form__submit[disabled] { opacity: 0.6; cursor: progress; }

.form__note { margin-top: var(--s-4); font-size: 0.8125rem; color: var(--paper-faint); text-align: center; }

.form__status {
  margin-top: var(--s-5);
  padding: var(--s-4);
  font-size: var(--t-small);
  border: 1px solid var(--line);
  display: flex;
  gap: var(--s-3);
  align-items: flex-start;
}
.form__status[hidden] { display: none; }
.form__status--ok { border-color: var(--volt); color: var(--paper); }
.form__status--error { border-color: oklch(0.62 0.19 25); color: var(--paper); }
.form__status-mark { flex-shrink: 0; font-weight: 700; }
.form__status--ok .form__status-mark { color: var(--volt); }
.form__status--error .form__status-mark { color: oklch(0.72 0.17 25); }

@media (max-width: 60rem) { .contact__grid { grid-template-columns: 1fr; } }
@media (max-width: 34rem) { .form__row { grid-template-columns: 1fr; gap: 0; } }

/* --- Footer -------------------------------------------------------------- */

.footer { background: var(--void); border-top: 1px solid var(--line); padding-block: clamp(3.5rem, 7vw, 5rem) var(--s-10); }
.footer__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(auto-fit, minmax(min(11rem, 100%), 1fr));
  gap: clamp(2.5rem, 5vw, 4rem);
}
.footer__brand-mark { font-size: 1.25rem; font-weight: 800; letter-spacing: -0.035em; }
.footer__brand-mark .brand-accent { color: var(--volt); }
.footer__brand-text { margin-top: var(--s-4); font-size: var(--t-small); color: var(--paper-mute); max-width: 34ch; }

.footer__heading { font-family: var(--font-mono); font-size: var(--t-mono); color: var(--paper-faint); margin-bottom: var(--s-5); }
.footer__list { list-style: none; padding: 0; display: flex; flex-direction: column; gap: var(--s-1); }
/* inline-block + padding para alcanzar los 24px mínimos de área táctil
   (WCAG 2.2, 2.5.8). El gap se reduce para conservar el mismo ritmo visual. */
.footer__link {
  display: inline-block;
  padding-block: var(--s-1);
  font-size: var(--t-small);
  color: var(--paper-mute);
  transition: color var(--d-micro) var(--ease);
  width: fit-content;
}
.footer__link:hover { color: var(--volt); }

.footer__bottom {
  margin-top: clamp(3rem, 6vw, 4.5rem);
  padding-top: var(--s-6);
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--s-4);
  font-family: var(--font-mono);
  font-size: var(--t-mono);
  color: var(--paper-faint);
}

/* --- WhatsApp flotante --------------------------------------------------- */

.wa {
  position: fixed;
  right: clamp(1rem, 3vw, 1.75rem);
  bottom: clamp(1rem, 3vw, 1.75rem);
  z-index: var(--z-sticky);
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
  padding: var(--s-4) var(--s-5);
  /* Oscuro a propósito: el botón es fijo y pasa por encima de secciones
     bañadas en ámbar, donde un relleno ámbar quedaría invisible. */
  background: var(--void);
  color: var(--volt);
  border: 1px solid var(--volt);
  border-radius: 999px;
  font-size: var(--t-small);
  font-weight: 700;
  box-shadow: 0 6px 28px color-mix(in oklab, var(--void) 70%, transparent);
  transition: transform var(--d-trans) var(--ease),
              background var(--d-micro) var(--ease),
              color var(--d-micro) var(--ease);
}
.wa:hover { background: var(--volt); color: var(--void); transform: translateY(-2px); }
.wa__text { display: inline; }
@media (max-width: 40rem) { .wa__text { display: none; } .wa { padding: var(--s-4); } }

/* --- Página pymes: planes ------------------------------------------------ */

.pymes-hero { padding-block: clamp(8.5rem, 18vh, 11rem) clamp(4rem, 7vh, 6rem); }
.pymes-hero__back {
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
  padding-block: var(--s-2);
  font-family: var(--font-mono);
  font-size: var(--t-mono);
  color: var(--paper-mute);
  margin-bottom: var(--s-8);
  transition: color var(--d-micro) var(--ease);
}
.pymes-hero__back:hover { color: var(--volt); }
.pymes-hero__title { font-size: clamp(2.5rem, 6vw + 0.5rem, 4.75rem); max-width: 16ch; }
.pymes-hero__title em { font-style: normal; color: var(--volt); }
.pymes-hero__lead { margin-top: var(--s-8); font-size: var(--t-lead); color: var(--paper-mute); max-width: 54ch; }

.plans {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(19rem, 100%), 1fr));
  gap: var(--s-6);
  align-items: stretch;
}

.plan {
  display: flex;
  flex-direction: column;
  background: var(--deep);
  border: 1px solid var(--line);
  padding: clamp(1.75rem, 3vw, 2.5rem);
  transition: border-color var(--d-trans) var(--ease), transform var(--d-trans) var(--ease);
}
.plan:hover { border-color: var(--paper-faint); transform: translateY(-3px); }

/* El plan destacado invierte la superficie: drench a nivel de componente */
.plan--featured {
  background: var(--volt);
  border-color: var(--volt);
  color: var(--void);
}
.plan--featured:hover { border-color: var(--void); }

.plan__flag {
  font-family: var(--font-mono);
  font-size: var(--t-mono);
  color: var(--paper-faint);
  display: flex;
  align-items: center;
  gap: var(--s-3);
}
.plan--featured .plan__flag { color: var(--ember-deep); }
.plan__flag::before {
  content: "";
  width: 5px; height: 5px;
  border-radius: 50%;
  background: currentColor;
}

.plan__name { margin-top: var(--s-5); font-size: 1.5rem; letter-spacing: -0.025em; }
.plan__for { margin-top: var(--s-2); font-size: var(--t-small); color: var(--paper-mute); }
.plan--featured .plan__for { color: var(--ember-deep); }

.plan__price {
  margin-top: var(--s-8);
  display: flex;
  align-items: baseline;
  gap: var(--s-2);
  flex-wrap: wrap;
}
.plan__from { font-family: var(--font-mono); font-size: var(--t-mono); color: var(--paper-faint); }
.plan--featured .plan__from { color: var(--ember-deep); }
.plan__amount { font-size: clamp(1.875rem, 2.5vw + 1rem, 2.5rem); font-weight: 800; letter-spacing: -0.035em; }
.plan__currency { font-family: var(--font-mono); font-size: var(--t-mono); color: var(--paper-faint); }
.plan--featured .plan__currency { color: var(--ember-deep); }

.plan__hosting {
  margin-top: var(--s-4);
  padding: var(--s-3) var(--s-4);
  border: 1px solid var(--line);
  font-size: 0.8125rem;
  color: var(--paper-mute);
}
.plan--featured .plan__hosting { border-color: color-mix(in oklab, var(--ember-deep) 35%, transparent); color: var(--ember-deep); font-weight: 600; }
.plan__hosting--included { border-color: var(--volt); color: var(--volt); font-weight: 600; }

.plan__features {
  margin: var(--s-8) 0 var(--s-8);
  padding-top: var(--s-6);
  border-top: 1px solid var(--line);
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
  flex: 1;
}
.plan--featured .plan__features { border-top-color: color-mix(in oklab, var(--ember-deep) 30%, transparent); }
.plan__feature { display: flex; gap: var(--s-3); font-size: var(--t-small); color: var(--paper-mute); }
.plan--featured .plan__feature { color: var(--ember-deep); }
.plan__check { color: var(--volt); flex-shrink: 0; font-weight: 700; }
.plan--featured .plan__check { color: var(--void); }

.plan__cta { justify-content: center; }
.plan--featured .plan__cta { background: var(--void); color: var(--volt); }
.plan--featured .plan__cta:hover { background: var(--ember-deep); }

/* Garantías: banda de refuerzo */
.assurances {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(15rem, 100%), 1fr));
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}
.assurance {
  background: var(--surface);
  padding: clamp(1.75rem, 3vw, 2.25rem);
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
}
.assurance__mark { color: var(--mark); }
.assurance__name { font-size: 1.0625rem; letter-spacing: -0.02em; }
.assurance__text { font-size: var(--t-small); color: var(--ink-mute); }

/* Nota de escalamiento: puente de vuelta al negocio B2B */
.bridge__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-8);
  padding: clamp(2rem, 4vw, 3rem);
  border: 1px solid var(--line);
}
.bridge__text { max-width: 46ch; }
.bridge__title { font-size: var(--t-h3); }
.bridge__body { margin-top: var(--s-3); color: var(--paper-mute); font-size: var(--t-small); }