/* =========================================================
   ACUC · Casos de Éxito
   ========================================================= */

:root {
  --azul: #0097F4;
  --azul-logo: #009EFE;
  --naranja: #F97316;
  --negro: #0A0A0A;
  --blanco: #FFFFFF;
  --gris-calido: #F5F4F0;
  --azul-noche: #1A1A2E;
  --azul-claro: #E8F4FE;
  --naranja-claro: #FFF3EB;

  --font-display: 'Inter', sans-serif;
  --font-body: 'DM Sans', sans-serif;

  --radio: 14px;

  --container: 1440px;
  --pad: clamp(1.5rem, 5vw, 6rem);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-body);
  color: var(--negro);
  background: var(--blanco);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* El fondo real lo pinta la capa cinematográfica; las secciones son transparentes */
.bg-layer {
  position: fixed;
  inset: 0;
  z-index: -1;
  background: var(--blanco);
}

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding-inline: var(--pad);
}

/* Temas de texto ------------------------------------------------ */
.tema-claro, .tema-gris { color: var(--negro); }
.tema-oscuro, .tema-cta { color: var(--blanco); }

/* Eyebrow (único en todo el sitio) ------------------------------ */
.eyebrow {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: clamp(0.72rem, 1vw, 0.85rem);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--azul);
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
}

/* =========================================================
   Nav mínimo
   ========================================================= */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: clamp(1rem, 2.2vw, 1.6rem) var(--pad);
  pointer-events: none;
}
.nav__mark {
  pointer-events: auto;
  display: inline-flex;
  align-items: baseline;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--negro);
  transition: color .4s ease;
}
.nav.on-dark .nav__mark { color: var(--blanco); }
.logo-wm {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(17px, 4vw, 22px);
  letter-spacing: -0.01em;
  line-height: 1;
  white-space: nowrap;
  color: inherit;
}
.logo-wm .d { color: #0066FF; }
.nav__by {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: clamp(11px, 2.4vw, 13px);
  letter-spacing: 0.01em;
  color: inherit;
  opacity: 0.55;
  white-space: nowrap;
}
.nav__c { color: var(--azul-logo); }
.nav__wa {
  pointer-events: auto;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--blanco);
  background: var(--azul);
  text-decoration: none;
  padding: 0.5rem 1.1rem;
  border-radius: 999px;
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity .3s ease, transform .3s ease;
}
.nav__wa.is-visible { opacity: 1; transform: translateY(0); }

/* =========================================================
   Preloader
   ========================================================= */
.preloader {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--blanco);
}
.preloader__inner {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  color: var(--negro);
}
.preloader__mark {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.5rem, 8vw, 5rem);
  letter-spacing: -0.03em;
}
.preloader__count {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1rem, 2vw, 1.4rem);
  color: var(--azul);
}
.preloader__curtain {
  position: absolute;
  inset: 0;
  background: var(--azul-noche);
  transform: translateY(100%);
}

/* =========================================================
   Hero
   ========================================================= */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero__bars {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 120%;
  z-index: 0;
}
.hero__inner { position: relative; z-index: 1; }
.hero__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.5rem, 9vw, 7rem);
  line-height: 0.92;
  letter-spacing: -0.03em;
}
.line-mask { overflow: hidden; }
.hero__sub {
  margin-top: clamp(1.5rem, 3vw, 2.25rem);
  max-width: 34ch;
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  line-height: 1.6;
  color: color-mix(in srgb, var(--negro) 72%, transparent);
}

/* =========================================================
   Escenas de caso
   ========================================================= */
.caso {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-block: clamp(2rem, 5vh, 4rem);
}
.caso__grid {
  display: grid;
  grid-template-columns: 58% 42%;
  align-items: center;
  gap: clamp(2rem, 4vw, 4rem);
  width: 100%;
}

/* Número ROAS gigante */
.caso__roas {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  line-height: 0.85;
}
.roas__num, .roas__x {
  font-family: var(--font-display);
  font-weight: 800;
  color: var(--naranja);
  font-size: clamp(5rem, 18vw, 14rem);
  line-height: 0.85;
  letter-spacing: -0.04em;
}
.roas__x { font-size: clamp(2.5rem, 8vw, 6rem); align-self: flex-start; }
.tema-oscuro .roas__num,
.tema-oscuro .roas__x {
  text-shadow: 0 0 60px rgba(249, 115, 22, 0.35);
}
.roas__cap {
  flex-basis: 100%;
  margin-top: 0.75rem;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: clamp(0.8rem, 1.2vw, 0.95rem);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--azul);
}

/* Columna de info */
.caso__nombre {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.75rem, 4vw, 3rem);
  letter-spacing: -0.02em;
  line-height: 1;
}
.caso__meta {
  margin-top: 0.5rem;
  font-size: clamp(0.9rem, 1.3vw, 1.05rem);
  color: color-mix(in srgb, currentColor 65%, transparent);
}
.metricas {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(1rem, 2vw, 1.75rem);
  margin-block: clamp(1.75rem, 3.5vw, 2.5rem);
}
.metrica {
  position: relative;
  padding-left: clamp(0.9rem, 1.4vw, 1.2rem);
  border-left: 1.5px solid color-mix(in srgb, var(--azul) 40%, transparent);
}
.metrica__val {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  line-height: 1;
  letter-spacing: -0.02em;
}
.metrica__lab {
  display: block;
  margin-top: 0.4rem;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: clamp(0.8rem, 1.2vw, 0.95rem);
  letter-spacing: 0.02em;
  color: color-mix(in srgb, currentColor 60%, transparent);
}
.caso__ctx {
  max-width: 46ch;
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  line-height: 1.6;
  color: color-mix(in srgb, currentColor 78%, transparent);
}

/* =========================================================
   Remate: gráfico de barras
   ========================================================= */
.remate {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding-block: clamp(4rem, 10vh, 8rem);
}
.remate__titulo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 5vw, 4rem);
  letter-spacing: -0.03em;
  line-height: 1.02;
  max-width: 16ch;
  margin-inline: auto;
  margin-bottom: clamp(2rem, 5vw, 4rem);
}
.chart { width: 100%; max-width: 720px; margin-inline: auto; }
.chart__svg { width: 100%; height: auto; display: block; overflow: visible; }
.chart__axis { stroke: color-mix(in srgb, var(--azul) 35%, transparent); stroke-width: 1.5; }
.bar__rect { transform-box: fill-box; transform-origin: bottom; }
.bar__val {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 26px;
  fill: var(--negro);
  text-anchor: middle;
}
.bar__lab {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 18px;
  fill: color-mix(in srgb, var(--negro) 70%, transparent);
  text-anchor: middle;
}
.remate__total {
  margin-top: clamp(2rem, 4vw, 3rem);
  font-size: clamp(1rem, 1.6vw, 1.25rem);
  line-height: 1.6;
  color: color-mix(in srgb, var(--negro) 78%, transparent);
}
.remate__total strong { color: var(--azul); font-weight: 700; }

/* =========================================================
   Método (cómo se logran los números) + nota metodológica
   ========================================================= */
.metodo { padding-block: clamp(4rem, 10vh, 8rem); }
.metodo__inner { max-width: 1040px; }
.metodo__titulo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 5vw, 3.5rem);
  letter-spacing: -0.03em;
  line-height: 1.03;
  margin-bottom: clamp(1rem, 2vw, 1.5rem);
}
.metodo__intro {
  max-width: 62ch;
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  line-height: 1.65;
  color: color-mix(in srgb, currentColor 80%, transparent);
  margin-bottom: clamp(2.5rem, 5vw, 3.5rem);
}
.metodo__intro strong { color: var(--azul); font-weight: 700; }
.metodo__link {
  color: var(--azul);
  font-weight: 700;
  text-decoration: underline;
  text-decoration-thickness: 1.5px;
  text-underline-offset: 3px;
  text-decoration-color: color-mix(in srgb, var(--azul) 45%, transparent);
  transition: text-decoration-color .25s ease;
}
.metodo__link:hover { text-decoration-color: var(--azul); }
.metodo__pasos {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.5rem, 3vw, 2.5rem);
}
.paso__n {
  display: block;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--azul);
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 0.75rem;
}
.paso__t {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.1rem, 1.8vw, 1.35rem);
  letter-spacing: -0.01em;
  margin-bottom: 0.6rem;
}
.paso__d {
  font-size: clamp(0.95rem, 1.3vw, 1.05rem);
  line-height: 1.6;
  color: color-mix(in srgb, currentColor 72%, transparent);
}
.ficha {
  margin-top: clamp(2.5rem, 5vw, 3.5rem);
  max-width: 62ch;
}
.ficha__t {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  letter-spacing: -0.01em;
  margin-bottom: clamp(1rem, 2vw, 1.4rem);
}
.ficha__lista { border-top: 1px solid color-mix(in srgb, currentColor 16%, transparent); }
.ficha__row {
  display: grid;
  grid-template-columns: minmax(120px, 170px) 1fr;
  gap: clamp(0.5rem, 2vw, 1.5rem);
  align-items: baseline;
  padding: clamp(0.7rem, 1.6vw, 0.95rem) 0;
  border-bottom: 1px solid color-mix(in srgb, currentColor 16%, transparent);
}
.ficha__row dt {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: clamp(0.72rem, 1vw, 0.82rem);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--azul);
}
.ficha__row dd {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  letter-spacing: -0.01em;
  line-height: 1.3;
}
.ficha__nota {
  margin-top: clamp(1.1rem, 2vw, 1.5rem);
  font-size: clamp(0.9rem, 1.2vw, 1rem);
  line-height: 1.6;
  color: color-mix(in srgb, currentColor 62%, transparent);
}

/* =========================================================
   FAQ de casos (AEO)
   ========================================================= */
.faq-casos { padding-block: clamp(4rem, 10vh, 8rem); }
.faq-casos__inner { max-width: 820px; }
.faq-casos__titulo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.9rem, 4.5vw, 3rem);
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: clamp(2rem, 4vw, 3rem);
}
.faqc { display: flex; flex-direction: column; }
.faqc__item {
  border-top: 1px solid color-mix(in srgb, currentColor 15%, transparent);
  padding: clamp(1.1rem, 2vw, 1.5rem) 0;
}
.faqc__item:last-child { border-bottom: 1px solid color-mix(in srgb, currentColor 15%, transparent); }
.faqc__q {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.05rem, 1.7vw, 1.25rem);
  letter-spacing: -0.01em;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}
.faqc__q::-webkit-details-marker { display: none; }
.faqc__q::after {
  content: '+';
  font-weight: 400;
  font-size: 1.6em;
  line-height: 1;
  color: var(--azul);
  transition: transform .3s ease;
}
.faqc__item[open] .faqc__q::after { transform: rotate(45deg); }
.faqc__a {
  margin-top: 0.9rem;
  font-size: clamp(0.98rem, 1.35vw, 1.1rem);
  line-height: 1.65;
  color: color-mix(in srgb, currentColor 78%, transparent);
  max-width: 68ch;
}
.faqc__a strong { color: var(--azul); font-weight: 700; }

/* =========================================================
   CTA
   ========================================================= */
.cta {
  min-height: 100svh;
  display: flex;
  align-items: center;
  text-align: center;
}
.cta__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(2rem, 5vw, 3.5rem);
}
.cta__titulo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.25rem, 6vw, 5rem);
  letter-spacing: -0.03em;
  line-height: 1.02;
  max-width: 18ch;
}
.cta__btn {
  --btn-x: 0px;
  --btn-y: 0px;
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: clamp(1.1rem, 2vw, 1.4rem) clamp(2.25rem, 4vw, 3.25rem);
  background: var(--naranja);
  color: var(--blanco);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.1rem, 1.8vw, 1.4rem);
  letter-spacing: -0.01em;
  text-decoration: none;
  border-radius: 999px;
  transform: translate(var(--btn-x), var(--btn-y));
  transition: box-shadow .3s ease, background .3s ease;
  box-shadow: 0 12px 40px rgba(249, 115, 22, 0.35);
  will-change: transform;
}
.cta__btn:hover { box-shadow: 0 18px 60px rgba(249, 115, 22, 0.5); }
.cta__btn-txt { position: relative; z-index: 1; pointer-events: none; }

/* =========================================================
   Footer
   ========================================================= */
.footer {
  padding-top: clamp(1.25rem, 3vw, 2rem);
  padding-bottom: clamp(2.5rem, 6vw, 4rem);
}
.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.75rem;
}
.footer__mark {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.4rem;
  letter-spacing: -0.02em;
  color: inherit;
  text-decoration: none;
}
.footer__line {
  font-size: clamp(0.85rem, 1.2vw, 1rem);
  color: color-mix(in srgb, var(--blanco) 60%, transparent);
}

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 1023px) {
  .caso__grid {
    grid-template-columns: 1fr;
    gap: clamp(1.5rem, 4vw, 2.5rem);
  }
  .caso { padding-block: clamp(2.5rem, 6vh, 3.5rem); }
  .roas__num { font-size: clamp(5rem, 26vw, 10rem); }
  .roas__x { font-size: clamp(2.5rem, 11vw, 4.5rem); }
  .metodo__pasos { grid-template-columns: 1fr; gap: clamp(1.75rem, 5vw, 2.5rem); }
}

@media (max-width: 767px) {
  .metricas { gap: clamp(1rem, 4vw, 1.5rem); }
  .ficha__row { grid-template-columns: 1fr; gap: 0.2rem; }
  .bar__val { font-size: 30px; }
  .bar__lab { font-size: 22px; }
}
@media (max-width: 420px) {
  .nav__by { display: none; }
}

/* =========================================================
   Accesibilidad: sin movimiento
   Fallback de fondos sólidos (sin capa animada por JS)
   ========================================================= */
@media (prefers-reduced-motion: reduce) {
  .preloader { display: none; }
  .line-mask { overflow: visible; }
  [data-bg="claro"] { background: var(--blanco); }
  [data-bg="gris"]  { background: var(--gris-calido); }
  [data-bg="oscuro"]{ background: var(--azul-noche); }
  [data-bg="cta"]   { background: var(--azul-noche); }
  .bg-layer { display: none; }
}