/* =====================================================================
   404 DESIGN STUDIO — Secciones
   ---------------------------------------------------------------------
   01 Hero        02 ¿Qué es 404?   03 Servicios     04 Especialización
   05 Diferencial 06 Portafolio      07 Proceso       08 Tecnología
   09 Filosofía   10 CTA final       11 Footer
   ===================================================================== */

/* ============================== 01. HERO ============================== */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-top: clamp(90px, 12vh, 140px);
  padding-bottom: var(--s9);
  overflow: clip;
}
.hero__inner {
  position: relative;
  z-index: var(--z-content);
  width: 100%;
}

.hero__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s4);
  margin-bottom: clamp(2rem, 6vh, 5rem);
}

/* Escenario del 404 */
.hero__stage {
  position: relative;
  width: fit-content;
  max-width: 100%;
  margin-bottom: clamp(1.5rem, 3vh, 3rem);
}
.hero__glyph {
  position: relative;
  font-size: var(--t-mega);
  font-weight: 500;
  line-height: .8;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
  display: flex;
  justify-content: flex-start;
  transition: color .6s var(--ease-out);
}
.hero__digit {
  display: block;
  position: relative;
  transition: opacity .8s var(--ease-out);
}
/* Los dígitos se mantienen unidos, como un solo logotipo */
.hero__digit + .hero__digit { margin-left: -.045em; }
/* Evita el destello antes de que hero.js prepare la secuencia.
   Sin GSAP, hero.js restaura la opacidad explícitamente (nunca queda oculto). */
html.js .hero__digit { opacity: 0; }
/* El "0" central es el portal: se marca con acento sutil */
.hero__digit--portal { color: var(--accent); }
.hero__glyph::after {
  /* rejilla técnica dentro del glyph */
  content: "";
  position: absolute;
  inset: -6% -2%;
  background-image: linear-gradient(to right, var(--line-soft) 1px, transparent 1px);
  background-size: calc(100% / 6) 100%;
  pointer-events: none;
  opacity: .6;
  mix-blend-mode: overlay;
}

/* Línea de escaneo que recorre el 404 al cargar */
.hero__scan {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}
.hero__scan::before {
  content: "";
  position: absolute;
  left: 0; right: 0; top: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

/* Corchetes de encuadre (arquitectura) */
.hero__frame { position: absolute; inset: -4% -1.5%; pointer-events: none; }
.hero__frame span {
  position: absolute;
  width: 22px; height: 22px;
  border: 1px solid var(--line-strong);
}
.hero__frame span:nth-child(1) { top: 0; left: 0; border-right: 0; border-bottom: 0; }
.hero__frame span:nth-child(2) { top: 0; right: 0; border-left: 0; border-bottom: 0; }
.hero__frame span:nth-child(3) { bottom: 0; left: 0; border-right: 0; border-top: 0; }
.hero__frame span:nth-child(4) { bottom: 0; right: 0; border-left: 0; border-top: 0; }

/* Titular */
.hero__headline {
  font-size: var(--t-display);
  font-weight: 450;
  line-height: .95;
  letter-spacing: -.045em;
  margin-bottom: clamp(2rem, 5vh, 3.5rem);
  max-width: 18ch;
}
.hero__headline em { font-style: normal; color: var(--accent); }

.hero__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--s6);
  border-top: 1px solid var(--line);
  padding-top: var(--s6);
}
.hero__services {
  max-width: 26ch;
  color: var(--ink-dim);
  font-size: var(--t-small);
  letter-spacing: .02em;
  line-height: 1.7;
}
.hero__services b { color: var(--ink); font-weight: 500; }
.hero__cta { display: flex; flex-wrap: wrap; gap: var(--s4); }

/* Lectura de estado del sistema (SCANNING → READY) */
.hero__readout {
  position: absolute;
  right: var(--gutter);
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: .55rem;
  font-family: var(--font-mono);
  font-size: var(--t-micro);
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--ink-faint);
  z-index: var(--z-content);
}
.hero__readout li { display: flex; align-items: center; gap: .6rem; transition: color .4s var(--ease-out); }
.hero__readout li::before {
  content: "";
  width: 14px; height: 1px;
  background: var(--ink-ghost);
  transform-origin: left center;
  transition: background-color .4s var(--ease-out), transform .4s var(--ease-out);
}
.hero__readout li.is-active { color: var(--accent); }
.hero__readout li.is-active::before { background: var(--accent); transform: scaleX(1.57); }
.hero__readout li.is-done { color: var(--ink-dim); }
.hero__readout li.is-done::before { background: var(--ink-dim); }

@media (max-width: 1100px) {
  .hero__readout { display: none; }
}
@media (max-width: 760px) {
  .hero__glyph { justify-content: flex-start; }
  .hero__foot { flex-direction: column; align-items: flex-start; }
}

/* ========================== 02. ¿QUÉ ES 404? ========================= */
.meaning__top {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: var(--grid-gap);
  align-items: end;
  margin-bottom: clamp(4rem, 12vh, 9rem);
}
.meaning__title { font-size: var(--t-h2); font-weight: 450; letter-spacing: -.035em; }
.meaning__copy { max-width: 52ch; }
.meaning__copy p { color: var(--ink-dim); font-size: var(--t-lead); line-height: 1.5; }
.meaning__copy p strong { color: var(--ink); font-weight: 500; }

.meaning__statement {
  position: relative;
  margin-block: clamp(2rem, 6vh, 4rem);
}
.meaning__statement .mega { display: block; }
.meaning__statement .mega + .mega { color: var(--accent); }
.meaning__caption {
  position: absolute;
  right: 0;
  bottom: -.2rem;
  max-width: 30ch;
  font-family: var(--font-mono);
  font-size: var(--t-micro);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-faint);
  text-align: right;
}
@media (max-width: 900px) {
  .meaning__top { grid-template-columns: 1fr; gap: var(--s6); }
  .meaning__caption { position: static; text-align: left; margin-top: var(--s5); }
}

.meaning__list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  margin-top: clamp(3rem, 8vh, 6rem);
}
.meaning__list li {
  padding: var(--s6) var(--s5) var(--s6) 0;
  border-right: 1px solid var(--line);
  position: relative;
}
.meaning__list li:last-child { border-right: 0; }
.meaning__list .n {
  font-family: var(--font-mono);
  font-size: var(--t-micro);
  letter-spacing: .2em;
  color: var(--accent);
  display: block;
  margin-bottom: var(--s5);
}
.meaning__list .w {
  display: block;
  font-size: var(--t-h4);
  font-weight: 450;
  letter-spacing: -.02em;
}
@media (max-width: 760px) {
  .meaning__list { grid-template-columns: repeat(2, 1fr); }
  .meaning__list li:nth-child(2) { border-right: 0; }
  .meaning__list li:nth-child(1),
  .meaning__list li:nth-child(2) { border-bottom: 1px solid var(--line); }
}

/* =========================== 03. SERVICIOS =========================== */
.services__intro {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: var(--grid-gap);
  margin-bottom: var(--s8);
}
.services__intro p { color: var(--ink-dim); font-size: var(--t-lead); line-height: 1.5; max-width: 46ch; }

.service-rows { border-top: 1px solid var(--line); }
.service-row {
  position: relative;
  display: grid;
  grid-template-columns: 90px minmax(0, 1fr) minmax(0, 1fr);
  gap: var(--s5);
  align-items: start;
  padding: clamp(1.6rem, 3vw, 2.6rem) 0;
  border-bottom: 1px solid var(--line);
}
.service-row__body { grid-column: 3; min-width: 0; }
.service-row__num {
  display: flex;
  flex-direction: column;
  gap: .8rem;
  font-family: var(--font-mono);
  font-size: var(--t-label);
  letter-spacing: .18em;
  color: var(--ink-faint);
  padding-top: .35rem;
  transition: color var(--dur) var(--ease-out), transform var(--dur) var(--ease-out);
}
.service-row__icon { display: block; width: 30px; height: 30px; flex: none; }
.service-row__name {
  font-size: clamp(1.8rem, 1rem + 4vw, 4rem);
  font-weight: 450;
  line-height: .98;
  letter-spacing: -.04em;
  color: var(--ink);
  transition: color var(--dur) var(--ease-out), transform var(--dur) var(--ease-out);
}
.service-row__desc {
  align-self: center;
  color: var(--ink-dim);
  font-size: var(--t-small);
  line-height: 1.5;
  max-width: 30ch;
  opacity: 0;
  transform: translateX(14px);
  transition: opacity var(--dur) var(--ease-out), transform var(--dur) var(--ease-out);
}
.service-row__tags {
  grid-column: 3;
  display: flex;
  flex-wrap: wrap;
  gap: .5rem .9rem;
  margin-top: var(--s3);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--dur) var(--ease-out), transform var(--dur) var(--ease-out);
}
.service-row__tags span {
  font-family: var(--font-mono);
  font-size: var(--t-micro);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
/* Línea de seguimiento vertical que crece con el hover */
.service-row::before {
  content: "";
  position: absolute;
  left: -1px; top: 0; bottom: 0;
  width: 2px;
  background: var(--accent);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform .5s var(--ease-draw);
}
.service-row:hover::before { transform: scaleY(1); }
.service-row:hover .service-row__num { color: var(--accent); transform: translateX(var(--s5)); }
.service-row:hover .service-row__name { color: var(--accent); transform: translateX(var(--s5)); }
.service-row:hover .service-row__desc,
.service-row:hover .service-row__tags { opacity: 1; transform: none; }

@media (max-width: 900px) {
  .service-row { grid-template-columns: 56px 1fr; }
  .service-row__body { grid-column: 1 / -1; margin-top: var(--s2); }
  .service-row__desc { opacity: 1; transform: none; max-width: 46ch; }
  .service-row__tags { opacity: 1; transform: none; }
  .service-row__icon { width: 24px; height: 24px; }
  .services__intro { grid-template-columns: 1fr; }
}

/* ======================== 04. ESPECIALIZACIÓN ======================== */
.spec { position: relative; }
.spec__head { margin-bottom: clamp(3rem, 8vh, 6rem); }
.spec__head h2 { max-width: 20ch; font-size: var(--t-h1); font-weight: 450; letter-spacing: -.04em; }
.spec__head p { color: var(--ink-dim); font-size: var(--t-lead); line-height: 1.5; margin-top: var(--s5); max-width: 48ch; }

.spec__sectors {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  border-top: 1px solid var(--line);
}
.spec__sector {
  position: relative;
  flex: 1 1 33.333%;
  min-width: 240px;
  padding: clamp(1.6rem, 3vw, 2.6rem) var(--s5) clamp(1.6rem, 3vw, 2.6rem) 0;
  border-bottom: 1px solid var(--line);
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: var(--s6);
  min-height: clamp(180px, 22vw, 300px);
  justify-content: space-between;
  transition: background-color var(--dur) var(--ease-out);
}
.spec__sector:hover { background: var(--surface); }
.spec__sector .n {
  font-family: var(--font-mono);
  font-size: var(--t-micro);
  letter-spacing: .2em;
  color: var(--ink-faint);
}
.spec__sector .name {
  font-size: clamp(1.1rem, .9rem + 1.2vw, 1.7rem);
  font-weight: 450;
  letter-spacing: -.02em;
  line-height: 1.05;
}
.spec__sector .desc { color: var(--ink-faint); font-size: var(--t-small); line-height: 1.5; }
/* Sectors fuertes (medical + technology) */
.spec__sector--key { background: var(--bg-2); }
.spec__sector--key .name { color: var(--accent); }
.spec__sector--key .n { color: var(--accent); }
.spec__sector--key::after {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: var(--accent);
  opacity: .5;
}

/* ========================== 05. DIFERENCIAL ========================== */
.diff__head { margin-bottom: clamp(3rem, 8vh, 6rem); }
.diff__head h2 { max-width: 20ch; font-size: var(--t-h1); font-weight: 450; letter-spacing: -.04em; }
.diff__head h2 span { display: block; color: var(--ink-dim); }

.diff__eq {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--line);
  max-width: 1000px;
}
.diff__term {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s5);
  padding: clamp(1rem, 2.4vw, 1.7rem) 0;
  border-bottom: 1px solid var(--line);
}
.diff__term .t {
  font-size: clamp(1.4rem, .9rem + 2.6vw, 3rem);
  font-weight: 450;
  letter-spacing: -.035em;
  transition: color var(--dur) var(--ease-out), transform var(--dur) var(--ease-out);
}
.diff__term .op {
  font-family: var(--font-mono);
  font-size: var(--t-h3);
  color: var(--ink-faint);
}
.diff__term:hover .t { color: var(--accent); transform: translateX(10px); }
.diff__term--eq { border-bottom: 0; }
.diff__term--eq .t {
  color: var(--accent);
  font-size: var(--t-display);
  font-weight: 500;
  letter-spacing: -.06em;
  font-variant-numeric: tabular-nums;
}
.diff__note {
  margin-top: var(--s6);
  color: var(--ink-dim);
  font-size: var(--t-small);
  line-height: 1.7;
  max-width: 56ch;
}
.diff__note b { color: var(--ink); font-weight: 500; }

/* =========================== 06. PORTAFOLIO ========================== */
.work__list { display: flex; flex-direction: column; gap: clamp(3rem, 8vh, 7rem); }

.work-card {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: center;
}
.work-card:nth-child(even) .work-card__media { order: 2; }
.work-card:nth-child(even) .work-card__body { order: 1; }

.work-card__media {
  position: relative;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--line);
  aspect-ratio: 16 / 10;
  border-radius: 2px;
}
.work-card__media img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 1.1s var(--ease-out), filter .6s var(--ease-out);
  filter: saturate(.85) contrast(1.02);
}
.work-card__media::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 45%, rgba(5,5,5,.5));
  pointer-events: none;
}
.work-card:hover .work-card__media img { transform: scale(1.05); filter: saturate(1) contrast(1.05); }

/* Etiqueta "VIEW PROJECT" que sigue el cursor dentro de la tarjeta */
.work-card__view {
  position: absolute;
  z-index: 3;
  top: 0; left: 0;
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .55rem 1rem;
  background: var(--accent);
  color: #001318;
  font-family: var(--font-mono);
  font-size: var(--t-micro);
  letter-spacing: .18em;
  text-transform: uppercase;
  border-radius: 2px;
  transform: translate(-50%, -50%) scale(.7);
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s var(--ease-out), transform .3s var(--ease-out);
  white-space: nowrap;
}
.work-card__media:hover .work-card__view { opacity: 1; transform: translate(-50%, -50%) scale(1); }

.work-card__body { display: flex; flex-direction: column; gap: var(--s4); max-width: 42ch; }
.work-card__meta {
  display: flex;
  align-items: center;
  gap: var(--s4);
  font-family: var(--font-mono);
  font-size: var(--t-micro);
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.work-card__meta .cat { color: var(--accent); }
.work-card__title {
  font-size: clamp(1.6rem, 1rem + 3vw, 3.2rem);
  font-weight: 450;
  letter-spacing: -.035em;
  line-height: 1;
  margin: 0;
}
.work-card__desc { color: var(--ink-dim); font-size: var(--t-body); line-height: 1.6; }
.work-card__tech {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem .9rem;
  margin-top: var(--s2);
}
.work-card__tech span {
  font-family: var(--font-mono);
  font-size: var(--t-micro);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-faint);
  border: 1px solid var(--line);
  padding: .3rem .6rem;
  border-radius: 2px;
}
.work-card__link { margin-top: var(--s3); }

@media (max-width: 900px) {
  .work-card { grid-template-columns: 1fr; gap: var(--s5); }
  .work-card:nth-child(even) .work-card__media,
  .work-card:nth-child(even) .work-card__body { order: 0; }
  .work-card__media { aspect-ratio: 4 / 3; }
}

/* ============================= 07. PROCESO =========================== */
.process__track { position: relative; }
.process__steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--grid-gap);
  position: relative;
}
/* Línea base + relleno animado por scroll */
.process__rail {
  position: absolute;
  top: 34px;
  left: 0; right: 0;
  height: 1px;
  background: var(--line);
}
.process__rail span {
  position: absolute;
  inset: 0;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left center;
}
.process__step { position: relative; padding-top: var(--s7); }
.process__step .node {
  position: absolute;
  top: 28px; left: 0;
  width: 13px; height: 13px;
  border: 1px solid var(--line-strong);
  background: var(--bg);
  border-radius: 50%;
  transition: border-color var(--dur) var(--ease-out),
              background-color var(--dur) var(--ease-out);
}
.process__step .n {
  font-family: var(--font-mono);
  font-size: var(--t-micro);
  letter-spacing: .2em;
  color: var(--ink-faint);
  display: block;
  margin-bottom: var(--s3);
}
.process__step h3 {
  font-size: clamp(1.15rem, .95rem + 1vw, 1.7rem);
  font-weight: 450;
  letter-spacing: -.02em;
  margin-bottom: var(--s2);
  text-transform: uppercase;
}
.process__step p { color: var(--ink-dim); font-size: var(--t-small); line-height: 1.5; }
.process__step.is-active .node {
  background: var(--accent);
  border-color: var(--accent);
  outline: 6px solid var(--accent-soft);
}
.process__step.is-active h3 { color: var(--accent); }

@media (max-width: 900px) {
  .process__steps { grid-template-columns: 1fr; gap: 0; }
  .process__rail { top: 0; bottom: 0; left: 6px; right: auto; width: 1px; height: auto; }
  .process__rail span { transform: scaleY(0); transform-origin: top center; }
  .process__step {
    padding: var(--s5) 0 var(--s5) var(--s7);
    border-bottom: 1px solid var(--line);
  }
  .process__step .node { top: var(--s5); }
}

/* =========================== 08. TECNOLOGÍA ========================== */
.tech { position: relative; }
.tech__head { margin-bottom: clamp(3rem, 8vh, 6rem); }
.tech__head h2 { max-width: 20ch; font-size: var(--t-h1); font-weight: 450; letter-spacing: -.04em; }

.tech__field {
  position: relative;
  min-height: clamp(420px, 46vw, 640px);
  border: 1px solid var(--line);
  border-radius: 2px;
  background:
    radial-gradient(ellipse 60% 50% at 50% 40%, rgba(0,229,255,.05), transparent 70%),
    var(--bg-2);
  overflow: hidden;
}
.tech__grid-lines {
  position: absolute; inset: -10% 0;
  background-image:
    linear-gradient(to right, var(--line-soft) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line-soft) 1px, transparent 1px);
  background-size: 64px 64px;
  pointer-events: none;
}
.tech__node {
  position: absolute;
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  padding: .5rem .85rem;
  border: 1px solid var(--line);
  background: rgba(5,5,5,.6);
  backdrop-filter: blur(6px);
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: var(--t-label);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-dim);
  transition: color var(--dur) var(--ease-out), border-color var(--dur) var(--ease-out),
              transform var(--dur) var(--ease-out), background-color var(--dur) var(--ease-out);
  animation: float-node 7s var(--ease-inout) infinite;
}
.tech__node::before {
  content: "";
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--ink-faint);
  transition: background-color var(--dur) var(--ease-out);
}
.tech__node:hover {
  color: var(--ink);
  border-color: var(--line-accent);
  background: rgba(0,229,255,.06);
}
.tech__node:hover::before { background: var(--accent); }
.tech__node--core {
  color: var(--accent);
  border-color: var(--line-accent);
  background: rgba(0,229,255,.08);
  letter-spacing: .24em;
}
.tech__node--core::before { background: var(--accent); }

@keyframes float-node {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-9px); }
}
.tech__legend {
  position: absolute;
  left: var(--s5); bottom: var(--s4);
  font-family: var(--font-mono);
  font-size: var(--t-micro);
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
@media (max-width: 760px) {
  .tech__field { min-height: auto; padding: var(--s5); display: flex; flex-wrap: wrap; gap: .6rem; }
  .tech__node { position: static !important; animation: none; }
  .tech__legend { position: static; margin-top: var(--s5); display: block; }
}

/* ============================ 09. FILOSOFÍA ========================== */
.philosophy { text-align: left; }
.philosophy__statement {
  font-size: clamp(2.2rem, 1rem + 7vw, 7rem);
  font-weight: 450;
  line-height: .98;
  letter-spacing: -.05em;
  margin-bottom: clamp(2.5rem, 6vh, 4.5rem);
}
.philosophy__statement span { display: block; }
.philosophy__statement .dim { color: var(--ink-faint); }
.philosophy__statement .accent { color: var(--accent); }
.philosophy__body {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: var(--grid-gap);
  border-top: 1px solid var(--line);
  padding-top: var(--s7);
}
.philosophy__body p { color: var(--ink-dim); font-size: var(--t-lead); line-height: 1.45; max-width: 42ch; }
.philosophy__body .sig {
  font-family: var(--font-mono);
  font-size: var(--t-label);
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--ink-faint);
  align-self: end;
  text-align: right;
}
@media (max-width: 900px) {
  .philosophy__body { grid-template-columns: 1fr; }
  .philosophy__body .sig { text-align: left; }
}

/* =========================== 10. CTA FINAL =========================== */
.cta {
  position: relative;
  text-align: center;
  padding-block: clamp(5rem, 16vh, 12rem);
  overflow: clip;
}
.cta::before {
  content: "";
  position: absolute;
  left: 50%; top: 50%;
  width: min(120vw, 1100px);
  aspect-ratio: 1;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, var(--accent-soft), transparent 62%);
  pointer-events: none;
  opacity: .8;
}
.cta__inner { position: relative; z-index: var(--z-content); }
.cta h2 {
  font-size: clamp(3rem, 1.4rem + 11vw, 12rem);
  font-weight: 450;
  line-height: .9;
  letter-spacing: -.055em;
  margin-bottom: var(--s6);
}
.cta h2 span { display: block; }
.cta h2 .accent { color: var(--accent); }
.cta__sub { color: var(--ink-dim); font-size: var(--t-lead); margin-bottom: var(--s7); }
.cta__actions { display: flex; justify-content: center; }
.cta .btn { padding: 1.3rem 2.4rem; font-size: var(--t-body); }

/* ============================= 11. FOOTER ============================ */
.footer {
  border-top: 1px solid var(--line);
  padding-top: var(--s8);
  padding-bottom: var(--s6);
  position: relative;
  z-index: var(--z-content);
}
.footer__top {
  display: grid;
  grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
  gap: var(--grid-gap);
  padding-bottom: var(--s8);
  border-bottom: 1px solid var(--line);
}
.footer__brand .brand { font-size: 1.5rem; }
.footer__tag { color: var(--ink-dim); margin-top: var(--s4); max-width: 34ch; }
.footer__loc {
  font-family: var(--font-mono);
  font-size: var(--t-label);
  letter-spacing: .02em;
  color: var(--ink-faint);
  margin-top: var(--s6);
}
.footer__cols {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--s5);
}
.footer__col h3 {
  font-family: var(--font-mono);
  font-size: var(--t-micro);
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--ink-faint);
  font-weight: 400;
  margin-bottom: var(--s4);
}
.footer__col a {
  display: block;
  padding: .28rem 0;
  color: var(--ink-dim);
  font-size: var(--t-small);
  transition: color var(--dur-fast) var(--ease-out), transform var(--dur) var(--ease-out);
}
.footer__col a:hover { color: var(--accent); transform: translateX(4px); }
.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--s5);
  padding-top: var(--s6);
  font-family: var(--font-mono);
  font-size: var(--t-micro);
  letter-spacing: .02em;
  color: var(--ink-faint);
}
.footer__bottom a:hover { color: var(--accent); }
@media (max-width: 900px) {
  .footer__top { grid-template-columns: 1fr; gap: var(--s8); }
}
@media (max-width: 560px) {
  .footer__cols { grid-template-columns: 1fr 1fr; gap: var(--s6) var(--s5); }
}

/* ------------------------- Iconos de sección ------------------------- */
.meaning__icon {
  display: block;
  width: 26px; height: 26px;
  color: var(--accent);
  margin-bottom: var(--s5);
}
.spec__sector-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s3);
}
.spec__icon { display: block; width: 26px; height: 26px; color: var(--ink-faint); }
.spec__sector--key .spec__icon { color: var(--accent); }
.diff__icon {
  display: inline-block;
  width: .62em; height: .62em;
  margin-right: .4em;
  vertical-align: -.02em;
  color: var(--ink-faint);
}
.diff__term:hover .diff__icon { color: var(--accent); }
.process__icon {
  display: block;
  width: 28px; height: 28px;
  color: var(--ink-faint);
  margin-bottom: var(--s3);
  transition: color var(--dur) var(--ease-out);
}
.process__step.is-active .process__icon { color: var(--accent); }
.footer__icon {
  display: inline-block;
  width: 16px; height: 16px;
  margin-right: .5rem;
  vertical-align: -.14em;
  color: var(--ink-faint);
}