/* ═══════════════════════════════════════════════════════════
   OPENEER — Landing
   Lenguaje visual: papel off-white, tinta negra, un solo acento
   naranja de marca. Display gigante en mayúsculas, labels de 11px,
   reglas capilares, mucho aire.
   ═══════════════════════════════════════════════════════════ */

/* ── TOKENS ─────────────────────────────────────────────── */
:root {
  --paper:      #F4F1EB;
  --paper-2:    #EBE7DF;
  --ink:        #0C0D0F;
  --ink-2:      #17191C;
  --accent:     #FF5A00;

  --fg:         var(--ink);
  --bg:         var(--paper);
  --muted:      rgba(12, 13, 15, .52);
  --faint:      rgba(12, 13, 15, .34);
  --line:       rgba(12, 13, 15, .16);
  --line-soft:  rgba(12, 13, 15, .08);
  --grid:       rgba(12, 13, 15, .055);
  --ghost:      rgba(12, 13, 15, .045);

  --display:    'Space Grotesk', 'Helvetica Neue', Arial, sans-serif;
  --body:       'Manrope', 'Helvetica Neue', Arial, sans-serif;

  --pad:        clamp(20px, 3.6vw, 64px);
  --gap:        clamp(20px, 2.4vw, 40px);
  --sec-y:      clamp(96px, 14vh, 200px);

  --ease:       cubic-bezier(.22, 1, .36, 1);
  --ease-io:    cubic-bezier(.65, .05, .36, 1);
}

/* ── RITMO DE INVERSIÓN ──────────────────────────────────
   Las secciones pares van en tinta y la 10 en el acento, para que
   el papel nunca corra más de una sección seguida. Cada bloque sólo
   redefine los tokens; ningún componente sabe en qué fondo vive. */
.sec--dark {
  --fg: var(--paper);
  --bg: var(--ink);
  --muted: rgba(244, 241, 235, .56);
  --faint: rgba(244, 241, 235, .34);
  --line: rgba(244, 241, 235, .18);
  --line-soft: rgba(244, 241, 235, .09);
  --grid: rgba(244, 241, 235, .06);
  --ghost: rgba(244, 241, 235, .05);
}
.sec--accent {
  --fg: #fff;
  --bg: var(--accent);
  --muted: rgba(255, 255, 255, .74);
  --faint: rgba(255, 255, 255, .5);
  --line: rgba(255, 255, 255, .36);
  --line-soft: rgba(255, 255, 255, .22);
  --grid: rgba(255, 255, 255, .14);
  /* más bajo que en el resto: sobre el naranja, el blanco pesa mucho más y
     el numeral empieza a competir con el titular en vez de sostenerlo */
  --ghost: rgba(255, 255, 255, .075);
}
/* Sobre el naranja, el acento pasa a tinta: es el único par que contrasta. */
.sec--accent .is-accent { color: var(--ink); }

/* ── RESET ──────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
/* `overflow-x: clip` y no `hidden`: `hidden` fuerza `overflow-y: auto`,
   convierte al body en contenedor de scroll y rompe `position: sticky`
   (el pin de la sección 05) además del pintado en scroll largo. */
html { -webkit-text-size-adjust: 100%; overflow-x: clip; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.55;
  font-weight: 400;
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
body.is-locked { overflow: hidden; height: 100svh; }
h1, h2, h3, h4, p, ul, ol, blockquote, figure { margin: 0; }
ul, ol { list-style: none; padding: 0; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
img { max-width: 100%; display: block; }
input, textarea, select { font: inherit; color: inherit; }
::selection { background: var(--accent); color: #fff; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; border-radius: 2px; }

/* Salto al contenido: sólo visible al tabular */
.skip {
  position: fixed; top: 10px; left: 10px; z-index: 200;
  padding: 13px 20px; border-radius: 999px;
  background: var(--accent); color: #fff;
  font-family: var(--display); font-size: 11px; font-weight: 500;
  letter-spacing: .16em; text-transform: uppercase;
  transform: translateY(-160%);
  transition: transform .3s var(--ease);
}
.skip:focus-visible { transform: none; }

/* ── TIPOGRAFÍA BASE ────────────────────────────────────── */
.kicker {
  display: block;
  font-family: var(--display);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--muted);
}
.display {
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(40px, 8.6vw, 152px);
  line-height: .88;
  letter-spacing: -.045em;
  text-transform: uppercase;
}
.h2 {
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(30px, 5vw, 84px);
  line-height: .95;
  letter-spacing: -.038em;
  text-transform: uppercase;
}
.h3 {
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(22px, 2.6vw, 44px);
  line-height: 1.02;
  letter-spacing: -.03em;
  text-transform: uppercase;
}
.is-accent { color: var(--accent); }
.is-muted  { color: var(--faint); }
.lede { max-width: 58ch; margin-top: 26px; font-size: clamp(15px, 1.15vw, 18px); color: var(--muted); }

/* ── TEXTURA DE SUPERFICIE ──────────────────────────────── */

/* Grano: una capa fija de ruido sobre todo. En `overlay` funciona igual
   sobre papel que sobre tinta, así que no hay que invertirla. */
.grain {
  position: fixed; inset: 0; z-index: 4; pointer-events: none;
  opacity: .5; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.82' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='220' height='220' filter='url(%23n)' opacity='.42'/%3E%3C/svg%3E");
}

/* Resplandor que sigue al cursor. En `screen` sólo se ve sobre los fondos
   oscuros: sobre el papel el resultado es casi el mismo blanco. */
.glow {
  position: fixed; top: 0; left: 0; z-index: 3;
  width: 640px; height: 640px; margin: -320px 0 0 -320px;
  border-radius: 50%; pointer-events: none;
  background: radial-gradient(circle closest-side, rgba(255, 90, 0, .28), rgba(255, 90, 0, .07) 55%, transparent 72%);
  mix-blend-mode: screen;
  opacity: 0; transition: opacity .6s var(--ease);
  will-change: transform;
}
.glow.is-ready { opacity: 1; }
@media (hover: none), (pointer: coarse) { .glow { display: none; } }

/* Barra de progreso de lectura */
.progress {
  position: fixed; top: 0; left: 0; z-index: 130;
  height: 2px; width: 100%; transform: scaleX(0); transform-origin: left;
  background: var(--accent);
}

/* ── LAYOUT ─────────────────────────────────────────────── */
.sec {
  position: relative;
  isolation: isolate;              /* para que el numeral fantasma quede
                                      sobre el fondo pero bajo el contenido */
  background-color: var(--bg);
  color: var(--fg);
  padding: var(--sec-y) var(--pad);
  transition: background-color .5s var(--ease), color .5s var(--ease);

  /* Grilla editorial de 6 columnas capilares, anclada al padding lateral */
  background-image: linear-gradient(90deg, var(--grid) 0 1px, transparent 1px);
  background-size: calc((100% - var(--pad) * 2) / 6) 100%;
  background-position: var(--pad) 0;
  background-repeat: repeat;
}

/* Numeral de sección gigante y tenue: da profundidad al papel sin ruido */
.sec[data-section]::after {
  content: attr(data-section);
  position: absolute; z-index: -1;
  top: clamp(24px, 4vh, 64px); right: var(--pad);
  font-family: var(--display); font-weight: 500;
  font-size: clamp(150px, 26vw, 420px); line-height: .72;
  letter-spacing: -.06em;
  color: var(--ghost);
  pointer-events: none; user-select: none;
}
.hero::after { display: none; }
.sec__head { max-width: 1600px; margin: 0 auto clamp(48px, 7vw, 110px); }
.sec__head .kicker { margin-bottom: clamp(24px, 3vw, 48px); }
.sec__foot {
  max-width: 62ch;
  margin: clamp(40px, 5vw, 80px) auto 0;
  padding-top: 26px;
  border-top: 1px solid var(--line);
  font-size: 15px;
  color: var(--muted);
}
.sec--dark + .sec--dark { padding-top: 0; }

/* ═══════════ PRELOADER ═══════════ */
.loader {
  position: fixed; inset: 0; z-index: 200;
  background: var(--ink); color: var(--paper);
  display: flex; align-items: flex-end;
  padding: var(--pad);
  transition: transform 1.1s var(--ease);
}
.loader.is-done { transform: translate3d(0, -101%, 0); }
.loader__inner { width: 100%; }
.loader__brand { display: flex; align-items: baseline; gap: 14px; margin-bottom: 28px; }
.loader__mark {
  width: 14px; height: 14px; border-radius: 50%;
  border: 2px solid var(--accent); border-right-color: transparent;
  animation: spin 1s linear infinite;
}
.loader__word {
  font-family: var(--display); font-weight: 500;
  font-size: clamp(40px, 9vw, 150px); line-height: .85;
  letter-spacing: -.05em; text-transform: uppercase;
}
.loader__line { height: 1px; background: rgba(244,241,235,.2); overflow: hidden; }
.loader__line i { display: block; height: 100%; width: 0; background: var(--accent); }
.loader__meta {
  display: flex; justify-content: space-between; gap: 20px; margin-top: 16px;
  font-family: var(--display); font-size: 11px; letter-spacing: .18em;
  text-transform: uppercase; color: rgba(244,241,235,.5);
}
.loader__count em { font-style: normal; color: var(--paper); }
@keyframes spin { to { transform: rotate(360deg); } }

/* ═══════════ CURSOR ═══════════ */
.cursor {
  position: fixed; top: 0; left: 0; z-index: 190; pointer-events: none;
  mix-blend-mode: difference;
  opacity: 0; transition: opacity .25s var(--ease);
}
.cursor.is-ready { opacity: 1; }
.cursor__dot {
  position: absolute; width: 6px; height: 6px; margin: -3px 0 0 -3px;
  border-radius: 50%; background: #fff;
  transition: opacity .3s var(--ease), transform .3s var(--ease);
}
.cursor__ring {
  position: absolute; width: 56px; height: 56px; margin: -28px 0 0 -28px;
  border: 1px solid rgba(255,255,255,.65); border-radius: 50%;
  display: grid; place-items: center;
  transform: scale(0);
  transition: transform .4s var(--ease), background .3s var(--ease);
}
.cursor__label {
  font-family: var(--display); font-size: 9px; font-style: normal;
  letter-spacing: .14em; text-transform: uppercase; color: #fff;
  opacity: 0; transition: opacity .25s var(--ease);
}
.cursor.is-active .cursor__ring { transform: scale(1); background: rgba(255,255,255,.08); }
.cursor.is-active .cursor__dot { transform: scale(0); }
.cursor.is-active .cursor__label { opacity: 1; }
@media (hover: none), (pointer: coarse) { .cursor { display: none; } }

/* ═══════════ NAV ═══════════ */
.nav {
  --nav-fg: var(--ink);
  position: fixed; top: 0; left: 0; right: 0; z-index: 120;
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center; gap: clamp(16px, 3vw, 48px);
  padding: 20px var(--pad);
  color: var(--nav-fg);
  transition: transform .55s var(--ease), opacity .4s var(--ease), color .45s var(--ease);
}
.nav.is-inverted { --nav-fg: var(--paper); }
.nav.is-hidden { transform: translate3d(0, -110%, 0); opacity: 0; }

/* Fuera del tope de página el nav flota sobre contenido: le damos un
   respaldo translúcido del color de la franja que tiene detrás. */
.nav.is-stuck {
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  transition: transform .55s var(--ease), opacity .4s var(--ease),
              color .45s var(--ease), background-color .45s var(--ease);
}
.nav.is-stuck[data-theme="light"]  { background-color: rgba(244, 241, 235, .78); }
.nav.is-stuck[data-theme="dark"]   { background-color: rgba(12, 13, 15, .74); }
.nav.is-stuck[data-theme="accent"] { background-color: rgba(255, 90, 0, .78); }

/* Con el menú abierto el nav queda sobre el panel oscuro: tiene que
   invertirse y soltar el respaldo, o la X de cerrar es invisible.
   Va después de las reglas de .is-stuck a propósito (misma especificidad). */
.nav.is-menu-open,
.nav.is-stuck.is-menu-open {
  --nav-fg: var(--paper);
  background-color: transparent;
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
}
.nav.is-menu-open .nav__logo--d { opacity: 0; }
.nav.is-menu-open .nav__logo--l { opacity: 1; }
.nav__brand { position: relative; display: block; height: 19px; }
.nav__logo { height: 19px; width: auto; transition: opacity .45s var(--ease); }
.nav__logo--l { position: absolute; top: 0; left: 0; opacity: 0; }
.nav.is-inverted .nav__logo--d { opacity: 0; }
.nav.is-inverted .nav__logo--l { opacity: 1; }
.nav__tag,
.nav__links a,
.nav__cta span {
  font-family: var(--display); font-size: 11px; font-weight: 400;
  letter-spacing: .16em; text-transform: uppercase; color: var(--nav-fg);
}
.nav__tag { opacity: .5; }
.nav__links { display: flex; gap: clamp(14px, 1.8vw, 30px); justify-self: end; }
.nav__links a { position: relative; opacity: .72; transition: opacity .3s var(--ease); }
.nav__links a::after {
  content: ''; position: absolute; left: 0; bottom: -4px; height: 1px; width: 100%;
  background: currentColor; transform: scaleX(0); transform-origin: right;
  transition: transform .45s var(--ease);
}
.nav__links a:hover { opacity: 1; }
.nav__links a:hover::after { transform: scaleX(1); transform-origin: left; }
.nav__cta {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 9px 16px; border: 1px solid currentColor; border-radius: 999px;
  color: var(--nav-fg);
  transition: background .35s var(--ease), border-color .35s var(--ease), color .35s var(--ease);
}
.nav__cta:hover { background: var(--accent); border-color: var(--accent); }
.nav__cta:hover span { color: #fff; }
.nav__cta:hover svg { stroke: #fff; }
.nav__cta svg { width: 9px; height: 9px; fill: none; stroke: currentColor; stroke-width: 1.4; }
.nav__burger { display: none; width: 26px; height: 16px; position: relative; justify-self: end; }
.nav__burger i { position: absolute; left: 0; right: 0; height: 1px; background: currentColor; transition: transform .4s var(--ease), opacity .3s; }
.nav__burger i:first-child { top: 4px; }
.nav__burger i:last-child { bottom: 4px; }
.nav__burger[aria-expanded="true"] i:first-child { transform: translateY(3.5px) rotate(45deg); }
.nav__burger[aria-expanded="true"] i:last-child { transform: translateY(-3.5px) rotate(-45deg); }

/* Área táctil de 44px sin alterar el tamaño visual ni la altura del nav:
   el rectángulo lo pone un pseudo-elemento, no la caja del botón. */
.nav__burger::after { content: ''; position: absolute; inset: -14px -9px; }
.nav__brand::after  { content: ''; position: absolute; inset: -13px -8px; }

/* ═══════════ MENU MOBILE ═══════════ */
.menu {
  position: fixed; inset: 0; z-index: 110;
  background: var(--ink); color: var(--paper);
  padding: 96px var(--pad) var(--pad);
  display: flex; flex-direction: column; justify-content: center; gap: 2px;
  clip-path: inset(0 0 100% 0);
  transition: clip-path .8s var(--ease);
  pointer-events: none;
  overflow-y: auto;              /* en pantallas bajas los 11 ítems no entran */
  -webkit-overflow-scrolling: touch;
}
.menu.is-open { clip-path: inset(0 0 0 0); pointer-events: auto; }
.menu a {
  font-family: var(--display); font-size: clamp(20px, 5.4vw, 34px);
  line-height: 1.25;
  letter-spacing: -.03em; text-transform: uppercase;
  padding: 10px 0; border-bottom: 1px solid rgba(244,241,235,.12);
  opacity: 0; transform: translateY(18px);
  transition: opacity .5s var(--ease), transform .5s var(--ease);
}
.menu.is-open a { opacity: 1; transform: none; }
.menu.is-open a:nth-child(1) { transition-delay: .12s }
.menu.is-open a:nth-child(2) { transition-delay: .16s }
.menu.is-open a:nth-child(3) { transition-delay: .2s }
.menu.is-open a:nth-child(4) { transition-delay: .24s }
.menu.is-open a:nth-child(5) { transition-delay: .28s }
.menu.is-open a:nth-child(6) { transition-delay: .32s }
.menu.is-open a:nth-child(7) { transition-delay: .36s }
.menu.is-open a:nth-child(8) { transition-delay: .4s }
.menu.is-open a:nth-child(9) { transition-delay: .44s }
.menu.is-open a:nth-child(10) { transition-delay: .48s }
.menu.is-open a:nth-child(11) { transition-delay: .52s }
.menu__cta { color: var(--accent); border-bottom: 0 !important; margin-top: 12px; }

/* En pantallas bajas (iPhone SE y similares) los 11 ítems centrados dejaban
   el CTA fuera de vista. Los alineamos arriba y los compactamos. */
@media (max-height: 760px) {
  .menu { justify-content: flex-start; padding-top: 84px; }
  .menu a { font-size: clamp(17px, 4.6vw, 26px); padding: 7px 0; }
  .menu__cta { margin-top: 8px; }
}

/* ═══════════ WHATSAPP FLOTANTE ═══════════
   En el naranja de marca, no en el verde de WhatsApp: el sitio tiene un solo
   acento y meterle un segundo color rompería la dirección de arte. Cerrado es
   un círculo; al pasar el mouse se abre y muestra el texto. */
.wa {
  position: fixed; right: var(--pad); bottom: 22px; z-index: 105;
  display: flex; align-items: center; gap: 0;
  height: 58px; padding: 0 5px 0 0;
  border-radius: 999px;
  background: var(--accent); color: #fff;
  box-shadow: 0 10px 34px rgba(255, 90, 0, .3), 0 2px 8px rgba(12, 13, 15, .18);
  overflow: hidden;
  /* Entra recién cuando el hero quedó atrás */
  opacity: 0; transform: translateY(22px) scale(.9); pointer-events: none;
  transition: opacity .5s var(--ease), transform .6s var(--ease),
              box-shadow .4s var(--ease), background .3s var(--ease);
  will-change: transform;
}
.wa.is-on { opacity: 1; transform: none; pointer-events: auto; }
.wa:hover { background: #ff6a17; box-shadow: 0 14px 40px rgba(255, 90, 0, .42), 0 2px 8px rgba(12, 13, 15, .2); }
.wa:active { transform: scale(.96); }
/* Se aparta cuando el menú móvil ocupa la pantalla */
body.is-locked .wa { opacity: 0; transform: translateY(22px) scale(.9); pointer-events: none; }

.wa__ico {
  position: relative; z-index: 2;
  flex: none; width: 58px; height: 58px;
  display: grid; place-items: center;
}
.wa__ico svg {
  width: 26px; height: 26px;
  transition: transform .45s var(--ease);
}
.wa:hover .wa__ico svg { transform: rotate(-8deg) scale(1.08); }

/* El texto se abre desde el círculo: animamos max-width, no display */
.wa__txt {
  position: relative; z-index: 2;
  display: grid; align-content: center; gap: 2px;
  max-width: 0; overflow: hidden; white-space: nowrap;
  transition: max-width .55s var(--ease), padding .55s var(--ease);
  padding-right: 0;
}
.wa:hover .wa__txt, .wa:focus-visible .wa__txt { max-width: 230px; padding-right: 22px; }
.wa__txt b {
  font-family: var(--display); font-weight: 500; font-size: 14px;
  letter-spacing: -.01em; line-height: 1;
}
.wa__txt i {
  font-style: normal; font-family: var(--display);
  font-size: 9.5px; letter-spacing: .13em; text-transform: uppercase;
  opacity: .78; line-height: 1;
}

/* Pulso: el mismo gesto que el punto "en línea" del chat de la sección 06 */
.wa__ring {
  position: absolute; z-index: 1;
  left: 29px; top: 50%; width: 52px; height: 52px; margin: -26px 0 0 -26px;
  border-radius: 50%; border: 1.5px solid rgba(255, 255, 255, .55);
  opacity: 0; pointer-events: none;
  animation: wa-pulse 3.6s var(--ease-io) infinite;
}
.wa__ring--2 { animation-delay: 1.8s; }
@keyframes wa-pulse {
  0%   { transform: scale(.72); opacity: .65; }
  70%  { transform: scale(1.55); opacity: 0; }
  100% { transform: scale(1.55); opacity: 0; }
}
.wa:hover .wa__ring { animation-play-state: paused; opacity: 0; }

@media (max-width: 860px) {
  /* Sin hover en touch: círculo perfecto, sin el padding que deja el texto */
  .wa { right: 16px; bottom: 16px; height: 54px; padding: 0; }
  .wa__ico { width: 54px; height: 54px; }
  .wa__txt { display: none; }
  .wa__ring { left: 27px; }
}
@media (prefers-reduced-motion: reduce) {
  .wa__ring { display: none; }
}

/* ═══════════ RAIL (indicador de sección) ═══════════ */
.rail {
  position: fixed; left: var(--pad); bottom: 22px; z-index: 100;
  display: flex; align-items: baseline; gap: 10px;
  font-family: var(--display); font-size: 11px; letter-spacing: .18em;
  text-transform: uppercase; color: var(--ink);
  opacity: 0; transition: opacity .5s var(--ease), color .45s var(--ease);
}
.rail.is-inverted { color: var(--paper); }
.rail.is-on { opacity: .78; }
.rail__num { font-size: 13px; letter-spacing: .06em; }
.rail__name { opacity: .6; }
@media (max-width: 860px) { .rail { display: none; } }

/* ═══════════ HERO ═══════════ */
.hero, .pin {
  background-image: linear-gradient(90deg, var(--grid) 0 1px, transparent 1px);
  background-size: calc((100% - var(--pad) * 2) / 6) 100%;
  background-position: var(--pad) 0;
  background-repeat: repeat;
}
.hero {
  min-height: 100svh;
  padding: clamp(100px, 13.5vh, 158px) var(--pad) var(--pad);
  display: flex; flex-direction: column; justify-content: space-between;
  gap: clamp(28px, 4.5vh, 60px);
}
.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(250px, 30%);
  gap: clamp(20px, 3vh, 44px) clamp(24px, 4vw, 80px);
  align-items: end;
}
.hero__kicker { grid-column: 1 / -1; }
.hero__title {
  grid-column: 1 / -1;
  font-size: clamp(34px, 6.6vw, 120px);
}
.hero__title > span { display: block; }
.hero__aside { grid-column: 2; }
.hero__aside p { font-size: clamp(14px, 1.05vw, 17px); color: var(--muted); max-width: 36ch; }
.hero__aside .btn { margin-top: 24px; }
.hero__foot {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: var(--gap); flex-wrap: wrap;
  padding-top: 26px; border-top: 1px solid var(--line);
}
.scroll-cue {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--display); font-size: 11px; letter-spacing: .2em;
  text-transform: uppercase; color: var(--muted);
}
.scroll-cue i {
  width: 1px; height: 26px; background: var(--line); position: relative; overflow: hidden;
}
.scroll-cue i::after {
  content: ''; position: absolute; inset: 0; background: var(--accent);
  animation: cue 2s var(--ease-io) infinite;
}
@keyframes cue { 0% { transform: translateY(-100%) } 60%,100% { transform: translateY(100%) } }
.stats { display: flex; flex-wrap: wrap; gap: clamp(20px, 3.4vw, 62px); }
.stats b {
  display: block; font-family: var(--display); font-weight: 500;
  font-size: clamp(22px, 2.3vw, 40px); letter-spacing: -.035em; line-height: 1;
}
.stats span {
  display: block; margin-top: 7px; max-width: 15ch;
  font-family: var(--display); font-size: 10px; letter-spacing: .14em;
  text-transform: uppercase; color: var(--muted);
}

/* ═══════════ MARQUEE ═══════════ */
/* Banda en tinta justo debajo del hero: corta el papel temprano, antes de
   que el diagnóstico corra 1900px en claro. */
.marquee {
  overflow: hidden;
  background: var(--ink); color: var(--paper);
  padding: clamp(18px, 2.2vw, 30px) 0;
}
.marquee__track { display: flex; width: max-content; animation: marquee 42s linear infinite; }
.marquee__track span {
  display: inline-flex; align-items: center;
  font-family: var(--display); font-size: clamp(15px, 1.9vw, 27px);
  letter-spacing: -.01em; text-transform: uppercase; white-space: nowrap;
}
.marquee__track i {
  display: inline-block; width: 6px; height: 6px; margin: 0 clamp(18px, 2.4vw, 40px);
  border-radius: 50%; background: var(--accent);
}
@keyframes marquee { to { transform: translate3d(-50%, 0, 0); } }

/* ═══════════ 01 · DIAGNÓSTICO ═══════════ */
.leaks { max-width: 1600px; margin: 0 auto; border-top: 1px solid var(--line); }
.leaks li {
  display: grid;
  grid-template-columns: 64px minmax(0, .95fr) minmax(0, 1fr);
  gap: clamp(16px, 3vw, 60px); align-items: baseline;
  padding: clamp(20px, 2.2vw, 34px) 0;
  border-bottom: 1px solid var(--line-soft);
  transition: padding-left .5s var(--ease), color .4s var(--ease);
}
.leaks li:hover { padding-left: clamp(10px, 1.6vw, 28px); }
.leaks__n {
  font-family: var(--display); font-size: 11px; letter-spacing: .16em; color: var(--faint);
  transition: color .4s var(--ease);
}
.leaks li:hover .leaks__n { color: var(--accent); }
.leaks h3 {
  font-family: var(--display); font-weight: 500;
  font-size: clamp(17px, 1.85vw, 30px); line-height: 1.1; letter-spacing: -.025em;
}
.leaks p { font-size: 15px; color: var(--muted); max-width: 46ch; }
.pull {
  max-width: 1600px; margin: clamp(64px, 9vw, 140px) auto 0;
  font-family: var(--display); font-weight: 500;
  font-size: clamp(26px, 4.6vw, 76px); line-height: .98; letter-spacing: -.04em;
  text-transform: uppercase;
}
.pull span { display: block; }
.pull span:last-child { color: var(--accent); }

/* ═══════════ 02 · CALCULADORA ═══════════ */
.calc {
  max-width: 1600px; margin: 0 auto;
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(40px, 6vw, 110px);
  align-items: start;
}
.calc__inputs { display: grid; gap: clamp(22px, 2.6vw, 40px); }
.field { display: grid; grid-template-columns: 1fr auto; gap: 8px 16px; align-items: baseline; }
.field label {
  font-family: var(--display); font-size: 11px; letter-spacing: .16em;
  text-transform: uppercase; color: var(--muted);
}
.field output {
  font-family: var(--display); font-weight: 500;
  font-size: clamp(19px, 1.9vw, 30px); letter-spacing: -.03em;
  color: var(--fg); font-variant-numeric: tabular-nums;
}
.field input[type="range"] {
  grid-column: 1 / -1; -webkit-appearance: none; appearance: none;
  width: 100%; height: 26px; background: transparent; cursor: grab; margin: 0;
}
.field input[type="range"]:active { cursor: grabbing; }
.field input[type="range"]::-webkit-slider-runnable-track {
  height: 1px; background: var(--line);
}
.field input[type="range"]::-moz-range-track { height: 1px; background: var(--line); }
.field input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 14px; height: 14px; margin-top: -6.5px; border-radius: 50%;
  background: var(--accent); border: 0;
  box-shadow: 0 0 0 0 rgba(255,90,0,.35);
  transition: box-shadow .3s var(--ease), transform .3s var(--ease);
}
.field input[type="range"]:hover::-webkit-slider-thumb { transform: scale(1.25); box-shadow: 0 0 0 8px rgba(255,90,0,.16); }
.field input[type="range"]::-moz-range-thumb {
  width: 14px; height: 14px; border-radius: 50%; background: var(--accent); border: 0;
}
.calc__out { border-top: 1px solid var(--line); }
.calc__row { padding: clamp(20px, 2.4vw, 34px) 0; border-bottom: 1px solid var(--line-soft); }
.calc__row .kicker { margin-bottom: 12px; }
.calc__big {
  display: flex; align-items: baseline; gap: 12px;
  font-family: var(--display); font-weight: 500;
  font-size: clamp(36px, 6.4vw, 104px); line-height: .9; letter-spacing: -.05em;
  font-variant-numeric: tabular-nums;
}
.calc__big em { font-style: normal; font-size: clamp(13px, 1.2vw, 20px); letter-spacing: .1em; color: var(--muted); }
.calc__big--accent { color: var(--accent); }
.calc__note { margin: 24px 0 0; font-size: 15px; color: var(--muted); max-width: 42ch; }
.calc__note span { color: var(--fg); }
.calc__out .btn { margin-top: 32px; }

/* ═══════════ BOTONES ═══════════ */
.btn {
  display: inline-flex; align-items: center; gap: 12px;
  padding: 15px 24px; border-radius: 999px;
  font-family: var(--display); font-size: 11px; font-weight: 500;
  letter-spacing: .16em; text-transform: uppercase;
  border: 1px solid transparent;
  transition: background .4s var(--ease), color .4s var(--ease), border-color .4s var(--ease);
  will-change: transform;
}
.btn svg { width: 10px; height: 10px; fill: none; stroke: currentColor; stroke-width: 1.4; }
.btn--ink { background: var(--ink); color: var(--paper); }
.btn--ink:hover { background: var(--accent); color: #fff; }
.btn--accent { background: var(--accent); color: #fff; }
.btn--accent:hover { background: var(--fg); color: var(--bg); }

/* ═══════════ 03 · POR QUÉ ═══════════ */
.why {
  max-width: 1600px; margin: 0 auto;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px;
  background: var(--line); border: 1px solid var(--line);
}
.why article {
  background: var(--bg); padding: clamp(26px, 3vw, 52px);
  min-height: clamp(240px, 26vw, 380px);
  display: flex; flex-direction: column; gap: 18px;
  transition: background .5s var(--ease), color .5s var(--ease);
}
.why article:hover { background: var(--ink); color: var(--paper); }
.why article:hover p { color: rgba(244,241,235,.62); }
.why__x { font-size: 15px; color: var(--accent); }
.why h3 {
  margin-top: auto;
  font-family: var(--display); font-weight: 500;
  font-size: clamp(19px, 2.1vw, 34px); line-height: 1.04; letter-spacing: -.03em;
  text-transform: uppercase;
}
.why p { font-size: 15px; color: var(--muted); transition: color .5s var(--ease); }

/* ═══════════ 04 · MECANISMO ═══════════ */
.engine {
  position: relative;
  max-width: 1600px; margin: 0 auto;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(20px, 2.4vw, 44px);
}
.engine__card {
  position: relative;
  border-top: 1px solid var(--fg);
  padding-top: clamp(20px, 2.2vw, 34px);
  display: flex; flex-direction: column; gap: clamp(24px, 3vw, 48px);
}
/* El título de la sección promete "motores conectados": un pulso recorre el
   borde superior de una tarjeta y arranca en la siguiente, escalonado. */
.engine__card { overflow: hidden; }
.engine__card::before {
  content: ''; position: absolute; top: 0; left: 0;
  width: 100%; height: 3px;
  background: linear-gradient(90deg, transparent 0, var(--accent) 14%, var(--accent) 26%, transparent 40%);
  transform: translateX(-100%);
  animation: engine-pulse 5.4s linear infinite;
}
.engine__card:nth-child(2)::before { animation-delay: .6s; }
.engine__card:nth-child(3)::before { animation-delay: 1.2s; }
@keyframes engine-pulse {
  0%   { transform: translateX(-100%); }
  55%  { transform: translateX(100%); }
  100% { transform: translateX(100%); }
}
.engine__card header { display: grid; gap: 14px; }
.engine__card h3 {
  font-family: var(--display); font-weight: 500;
  font-size: clamp(22px, 2.6vw, 42px); line-height: 1; letter-spacing: -.035em;
  text-transform: uppercase;
}
.engine__card ul { display: grid; gap: 0; }
.engine__card li {
  padding: 13px 0; border-bottom: 1px solid var(--line-soft);
  font-size: 15px; color: var(--muted);
  display: flex; align-items: baseline; gap: 12px;
}
.engine__card li::before { content: ''; width: 4px; height: 4px; border-radius: 50%; background: var(--accent); flex: none; }

/* ═══════════ 05 · PIN HORIZONTAL ═══════════ */
.pin { position: relative; height: 380vh; background: var(--paper); }
.pin__sticky {
  position: sticky; top: 0; height: 100svh;
  display: flex; flex-direction: column; justify-content: center;
  gap: clamp(24px, 4vh, 54px);
  padding: clamp(90px, 12vh, 140px) 0 clamp(40px, 7vh, 80px);
  overflow: hidden;
}
.pin__head { padding-inline: var(--pad); display: grid; gap: 16px; max-width: 900px; }
.pin__track { width: 100%; }
.flow {
  display: flex; gap: clamp(14px, 1.6vw, 28px);
  padding-inline: var(--pad);
  width: max-content;
  will-change: transform;
}
.flow li {
  position: relative;
  width: clamp(220px, 25vw, 340px); flex: none;
  border-top: 1px solid var(--ink);
  padding: clamp(16px, 1.8vw, 26px) 0 0;
  display: grid; gap: 10px; align-content: start;
}
.flow li::after {
  content: ''; position: absolute; top: -1px; left: 0; height: 3px; width: 100%;
  background: var(--accent); transform: scaleX(0); transform-origin: left;
  transition: transform .7s var(--ease);
}
.flow li.is-on::after { transform: scaleX(1); }
.flow__n { font-family: var(--display); font-size: 11px; letter-spacing: .18em; color: var(--faint); }
.flow h3 {
  font-family: var(--display); font-weight: 500;
  font-size: clamp(18px, 1.9vw, 30px); line-height: 1; letter-spacing: -.03em;
  text-transform: uppercase;
}
.flow__main { font-size: 15px; }
.flow__src {
  font-family: var(--display); font-size: 10px; letter-spacing: .14em;
  text-transform: uppercase; color: var(--muted);
}
.flow li.is-last h3 { color: var(--accent); }
.pin__foot {
  padding-inline: var(--pad); max-width: 68ch;
  font-size: 15px; color: var(--muted);
}
.pin__bar { margin: 0 var(--pad); height: 1px; background: var(--line); }
.pin__bar i { display: block; height: 100%; width: 0; background: var(--accent); }

/* ═══════════ 06 · IA / CHAT ═══════════ */
.ia {
  max-width: 1600px; margin: 0 auto;
  display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
  gap: clamp(40px, 5vw, 100px); align-items: start;
}
.ia__list { border-top: 1px solid var(--line); }
.ia__list li {
  display: flex; align-items: baseline; gap: 16px;
  padding: clamp(14px, 1.6vw, 22px) 0; border-bottom: 1px solid var(--line-soft);
  font-size: clamp(15px, 1.15vw, 18px);
}
.ia__list li::before {
  content: '✓'; color: var(--accent); font-size: 12px; flex: none;
}
.chat {
  border: 1px solid var(--line); border-radius: 4px;
  background: rgba(244,241,235,.04);
  overflow: hidden;
}
.chat__head {
  display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 12px;
  padding: 18px 22px; border-bottom: 1px solid var(--line);
}
.chat__dot { width: 7px; height: 7px; border-radius: 50%; background: #3ad07a; box-shadow: 0 0 0 0 rgba(58,208,122,.5); animation: pulse 2.4s infinite; }
@keyframes pulse { 70%, 100% { box-shadow: 0 0 0 9px rgba(58,208,122,0); } }
.chat__head b { display: block; font-family: var(--display); font-weight: 500; font-size: 13px; letter-spacing: -.01em; }
.chat__head span { display: block; font-size: 11px; color: var(--muted); }
.chat__head time { font-family: var(--display); font-size: 11px; letter-spacing: .12em; color: var(--faint); }
.chat__body {
  padding: 24px 22px; display: flex; flex-direction: column; gap: 14px;
  min-height: clamp(300px, 38vh, 420px);
  /* El chat crece solo al tipearse. Sin esto, el anclaje de scroll del
     navegador corrige la posición por su cuenta y pelea con el scroll suave. */
  overflow-anchor: none;
}
.faq div, .flow { overflow-anchor: none; }
.msg { max-width: 78%; display: grid; gap: 7px; opacity: 0; transform: translateY(14px); }
.msg.is-in { opacity: 1; transform: none; transition: opacity .5s var(--ease), transform .5s var(--ease); }
.msg span {
  font-family: var(--display); font-size: 9px; letter-spacing: .16em;
  text-transform: uppercase; color: var(--faint);
}
.msg p { padding: 14px 16px; border-radius: 12px; font-size: 14.5px; line-height: 1.5; }
.msg--user { align-self: flex-start; }
.msg--user p { background: rgba(244,241,235,.09); border-bottom-left-radius: 3px; }
.msg--bot { align-self: flex-end; text-align: right; }
.msg--bot span { text-align: right; }
.msg--bot p { background: var(--accent); color: #fff; border-bottom-right-radius: 3px; text-align: left; }
.msg--typing p { display: inline-flex; gap: 5px; padding: 16px 18px; }
.msg--typing i { width: 5px; height: 5px; border-radius: 50%; background: currentColor; opacity: .45; animation: blink 1.2s infinite; }
.msg--typing i:nth-child(2) { animation-delay: .18s; }
.msg--typing i:nth-child(3) { animation-delay: .36s; }
@keyframes blink { 0%, 60%, 100% { opacity: .25; transform: translateY(0) } 30% { opacity: 1; transform: translateY(-3px) } }

/* ═══════════ 07 · QUÉ SE INSTALA ═══════════ */
.install { max-width: 1600px; margin: 0 auto; border-top: 1px solid var(--line); }
.install li {
  display: flex; align-items: baseline; justify-content: space-between; gap: 24px;
  padding: clamp(15px, 1.6vw, 24px) 0; border-bottom: 1px solid var(--line-soft);
  transition: padding-left .5s var(--ease);
}
.install li:hover { padding-left: 16px; }
.install__t {
  font-family: var(--display); font-weight: 400;
  font-size: clamp(15px, 1.5vw, 24px); letter-spacing: -.02em;
  display: flex; align-items: baseline; gap: 14px;
}
.install__t::before { content: '✓'; color: var(--accent); font-size: 11px; }
.install__v {
  font-family: var(--display); font-size: clamp(13px, 1.1vw, 17px);
  letter-spacing: .04em; color: var(--muted); font-variant-numeric: tabular-nums; white-space: nowrap;
}
.compare {
  max-width: 1600px; margin: clamp(48px, 6vw, 90px) auto 0;
  display: grid; grid-template-columns: 1fr 1fr; gap: clamp(24px, 3vw, 60px);
}
.compare__col { display: grid; gap: 16px; align-content: start; padding-top: 26px; border-top: 1px solid var(--line); }
.compare__num {
  font-family: var(--display); font-weight: 500;
  font-size: clamp(30px, 4.6vw, 76px); line-height: .9; letter-spacing: -.045em;
  font-variant-numeric: tabular-nums;
}
.compare__num--old { color: var(--faint); text-decoration: line-through; text-decoration-thickness: 2px; }
.compare__col--main { border-top-color: var(--accent); }
.compare__col--main .compare__num { color: var(--accent); }

/* ═══════════ 08 · TIERS ═══════════ */
.tiers {
  max-width: 1600px; margin: 0 auto;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(16px, 2vw, 32px);
}
.tier {
  position: relative;
  border: 1px solid var(--line); border-radius: 4px;
  padding: clamp(24px, 2.6vw, 44px);
  display: flex; flex-direction: column; gap: clamp(22px, 2.4vw, 36px);
  transition: border-color .4s var(--ease), transform .5s var(--ease), background .5s var(--ease);
}
.tier:hover { border-color: var(--fg); transform: translateY(-6px); }
/* Se invierte respecto de su sección: en papel queda tinta, en tinta queda
   papel. No hace falta saber sobre qué fondo cayó. */
.tier--featured { background: var(--fg); color: var(--bg); border-color: var(--fg); }
.tier--featured:hover { transform: translateY(-10px); }
.tier__flag {
  position: absolute; top: -1px; right: clamp(24px, 2.6vw, 44px);
  background: var(--accent); color: #fff;
  font-family: var(--display); font-size: 9px; letter-spacing: .16em; text-transform: uppercase;
  padding: 6px 12px 5px; border-radius: 0 0 3px 3px;
}
.tier header { display: grid; gap: 12px; }
.tier__name {
  font-family: var(--display); font-size: 11px; letter-spacing: .24em; text-transform: uppercase;
  color: var(--accent);
}
.tier__price {
  font-family: var(--display); font-weight: 500;
  font-size: clamp(30px, 3.4vw, 56px); line-height: .92; letter-spacing: -.045em;
}
.tier__sub { font-size: 12.5px; opacity: .6; }
.tier ul { display: grid; gap: 0; flex: 1; }
.tier li {
  padding: 11px 0; border-bottom: 1px solid var(--line-soft);
  font-size: 14.5px; display: flex; align-items: baseline; gap: 11px;
}
.tier--featured li { border-bottom-color: rgba(128, 128, 128, .3); }
@supports (color: color-mix(in srgb, red 10%, transparent)) {
  .tier--featured li { border-bottom-color: color-mix(in srgb, currentColor 16%, transparent); }
}
.tier li::before { content: '✓'; font-size: 10px; color: var(--accent); flex: none; }
.tier a {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--display); font-size: 11px; letter-spacing: .16em; text-transform: uppercase;
  color: var(--accent);
}
.tier a svg { width: 9px; height: 9px; fill: none; stroke: currentColor; stroke-width: 1.5; transition: transform .4s var(--ease); }
.tier a:hover svg { transform: translate(3px, -3px); }

/* ═══════════ 09 · RIESGO ═══════════ */
.steps {
  max-width: 1600px; margin: 0 auto;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(20px, 2.6vw, 48px);
}
.steps li { border-top: 1px solid var(--fg); padding-top: clamp(18px, 2vw, 30px); display: grid; gap: 14px; align-content: start; }
.steps__n { font-family: var(--display); font-size: 11px; letter-spacing: .18em; color: var(--accent); }
.steps h3 {
  font-family: var(--display); font-weight: 500;
  font-size: clamp(20px, 2.2vw, 36px); line-height: 1; letter-spacing: -.03em; text-transform: uppercase;
}
.steps p { font-size: 15px; color: var(--muted); }
.assets {
  max-width: 1600px; margin: clamp(48px, 6vw, 90px) auto 0;
  padding-top: 28px; border-top: 1px solid var(--line);
}
.assets .kicker { margin-bottom: 22px; }
.assets ul { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px clamp(20px, 3vw, 50px); }
.assets li {
  font-family: var(--display); font-size: clamp(14px, 1.2vw, 19px); letter-spacing: -.015em;
  display: flex; align-items: baseline; gap: 11px;
}
.assets li::before { content: '·'; color: var(--accent); }
.legal {
  max-width: 1600px; margin: clamp(36px, 4vw, 60px) auto 0;
  font-size: 12.5px; line-height: 1.6; color: var(--faint); max-width: 90ch;
}

/* ═══════════ 10 · EXCLUSIVIDAD ═══════════ */
.sec--excl { text-align: left; }
.sec--excl > .kicker { max-width: 1600px; margin: 0 auto clamp(28px, 3vw, 48px); }
.display--excl { max-width: 1600px; margin: 0 auto; }
.display--excl span { display: block; }
.excl__lede {
  max-width: 62ch; margin: clamp(32px, 4vw, 60px) 0 0;
  font-size: clamp(15px, 1.2vw, 19px); color: var(--muted);
}
.excl__grid {
  max-width: 1600px;
  margin: clamp(48px, 6vw, 90px) auto 0;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(20px, 2.6vw, 48px);
}
.excl__grid > div { border-top: 1px solid var(--line); padding-top: 22px; display: grid; gap: 12px; }
.excl__grid p { font-size: 14.5px; color: var(--muted); }

/* ═══════════ 11 · FAQ ═══════════ */
.faq { max-width: 1600px; margin: 0 auto; border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line-soft); }
.faq summary {
  list-style: none; cursor: pointer;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  padding: clamp(20px, 2.2vw, 32px) 0;
  font-family: var(--display); font-weight: 500;
  font-size: clamp(17px, 1.9vw, 30px); line-height: 1.1; letter-spacing: -.028em;
  transition: color .35s var(--ease);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary:hover { color: var(--accent); }
.faq summary i {
  position: relative; width: 14px; height: 14px; flex: none;
}
.faq summary i::before, .faq summary i::after {
  content: ''; position: absolute; inset: 0; margin: auto;
  background: currentColor;
}
.faq summary i::before { width: 100%; height: 1px; }
.faq summary i::after { width: 1px; height: 100%; transition: transform .45s var(--ease); }
.faq details[open] summary i::after { transform: scaleY(0); }
.faq details[open] summary { color: var(--accent); }
.faq div { overflow: hidden; }
.faq p {
  padding-bottom: clamp(20px, 2.2vw, 32px); max-width: 66ch;
  font-size: clamp(15px, 1.15vw, 18px); color: var(--muted);
}

/* ═══════════ 12 · DECISIÓN ═══════════ */
.answers {
  max-width: 1600px; margin: 0 auto;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(16px, 2vw, 32px);
}
.answers article {
  border: 1px solid var(--line); border-radius: 4px;
  padding: clamp(24px, 2.6vw, 42px);
  display: grid; gap: 16px; align-content: start;
  min-height: clamp(180px, 18vw, 260px);
}
.answers b {
  font-family: var(--display); font-weight: 500;
  font-size: clamp(30px, 3.6vw, 60px); line-height: .9; letter-spacing: -.045em; text-transform: uppercase;
}
.answers p { font-size: 15px; color: var(--muted); }
.answers__yes { background: var(--accent); border-color: var(--accent); color: #fff; }
.answers__yes p { color: rgba(255,255,255,.8); }
.answers__maybe { border-style: dashed; }
.answers__maybe b { color: var(--faint); }

.cta { max-width: 1600px; margin: clamp(72px, 9vw, 140px) auto 0; }
.cta__title { margin-bottom: clamp(40px, 5vw, 72px); font-size: clamp(34px, 6.4vw, 108px); }
.cta__title span { display: block; }

/* ═══════════ FORM ═══════════ */
.form { display: grid; gap: clamp(18px, 2vw, 28px); max-width: 1100px; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(18px, 2vw, 28px); }
.form label { display: grid; gap: 9px; }
.form label > span {
  font-family: var(--display); font-size: 11px; letter-spacing: .16em;
  text-transform: uppercase; color: var(--muted);
}
.form input, .form textarea {
  width: 100%; background: transparent; border: 0; border-bottom: 1px solid var(--line);
  padding: 12px 0; font-size: 16px; font-family: var(--body);
  transition: border-color .35s var(--ease);
  resize: vertical;
}
.form input::placeholder, .form textarea::placeholder { color: var(--faint); }
.form input:focus, .form textarea:focus { outline: none; border-bottom-color: var(--accent); }
.form input:invalid:not(:placeholder-shown) { border-bottom-color: rgba(255,90,0,.55); }
.form__send { display: flex; align-items: center; gap: clamp(18px, 2.4vw, 40px); flex-wrap: wrap; margin-top: 8px; }
.form__legal { font-size: 12.5px; color: var(--faint); max-width: 38ch; }
.form__ok {
  font-family: var(--display); font-size: 12px; letter-spacing: .1em; text-transform: uppercase;
  color: var(--accent); padding-top: 6px; max-width: 60ch; line-height: 1.5;
}
.form__ok.is-error { color: var(--fg); opacity: .75; }
.form button[disabled] { opacity: .55; cursor: progress; }

/* ═══════════ FOOTER ═══════════ */
.foot { background: var(--ink); color: var(--paper); padding: clamp(64px, 8vw, 120px) var(--pad) 26px; overflow: hidden; }
.foot__top {
  max-width: 1600px; margin: 0 auto;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(28px, 3vw, 60px);
  padding-bottom: clamp(48px, 6vw, 90px);
}
.foot .kicker { color: rgba(244,241,235,.42); margin-bottom: 18px; }
.foot__contact a {
  display: block;
  font-family: var(--display); font-weight: 500;
  font-size: clamp(18px, 1.9vw, 30px); letter-spacing: -.03em; line-height: 1.35;
  transition: color .35s var(--ease);
}
.foot__contact a:hover { color: var(--accent); }
.foot__note { margin-top: 12px; font-size: 13.5px; color: rgba(244, 241, 235, .5); }

/* WhatsApp del pie: el ícono asoma desde la izquierda al pasar el mouse y
   empuja el número, en vez de estar siempre ahí ocupando lugar. */
.wa-link { display: flex; align-items: center; }
.wa-link__ico {
  flex: none; display: grid; place-items: center;
  width: 0; overflow: hidden; opacity: 0;
  transition: width .45s var(--ease), opacity .35s var(--ease), margin .45s var(--ease);
}
.wa-link__ico svg { width: 20px; height: 20px; }
.wa-link:hover .wa-link__ico,
.wa-link:focus-visible .wa-link__ico { width: 20px; opacity: 1; margin-right: 12px; }
.wa-link__tag {
  margin-left: 12px; padding: 4px 9px 3px; border-radius: 999px;
  border: 1px solid rgba(244, 241, 235, .28);
  font-family: var(--display); font-style: normal; font-size: 9px;
  letter-spacing: .16em; text-transform: uppercase;
  opacity: .6;
  transition: opacity .35s var(--ease), border-color .35s var(--ease), background .35s var(--ease);
}
.wa-link:hover .wa-link__tag { opacity: 1; background: var(--accent); border-color: var(--accent); color: #fff; }

/* Botón de WhatsApp junto al del formulario */
.btn--wa {
  border-color: var(--line); color: var(--fg);
  gap: 10px;
}
.btn--wa svg { width: 17px; height: 17px; stroke: none; fill: currentColor; transition: transform .45s var(--ease); }
.btn--wa:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn--wa:hover svg { transform: rotate(-8deg) scale(1.1); }
.foot__nav { display: grid; align-content: start; gap: 7px; }
.foot__nav a { font-size: 14.5px; color: rgba(244,241,235,.62); transition: color .3s var(--ease); }
.foot__nav a:hover { color: var(--paper); }
.foot__back { justify-self: end; align-self: end; }
.foot__back a {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--display); font-size: 11px; letter-spacing: .16em; text-transform: uppercase;
  padding: 14px 22px; border: 1px solid rgba(244,241,235,.25); border-radius: 999px;
  transition: background .4s var(--ease), color .4s var(--ease), border-color .4s var(--ease);
}
.foot__back a:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.foot__back svg { width: 10px; height: 10px; fill: none; stroke: currentColor; stroke-width: 1.4; }
.foot__word {
  font-family: var(--display); font-weight: 500;
  font-size: clamp(56px, 21vw, 380px); line-height: .78; letter-spacing: -.055em;
  text-align: center; color: rgba(244,241,235,.1);
  margin-block: clamp(10px, 2vw, 30px);
  user-select: none;
}
.foot__bottom {
  max-width: 1600px; margin: 0 auto;
  display: flex; justify-content: space-between; gap: 18px; flex-wrap: wrap;
  padding-top: 22px; border-top: 1px solid rgba(244,241,235,.14);
  font-family: var(--display); font-size: 10.5px; letter-spacing: .16em; text-transform: uppercase;
  color: rgba(244,241,235,.45);
}

/* ═══════════ ANIMACIONES DE ENTRADA ═══════════ */
[data-split] { display: block; }
.line-wrap {
  display: block; overflow: hidden;
  /* aire arriba para las tildes de las mayúsculas (TENÉS) y abajo para
     las colas; se compensa con margen negativo para no romper el ritmo */
  padding-top: .14em; margin-top: -.14em;
  padding-bottom: .1em; margin-bottom: -.1em;
}
.line {
  display: block;
  transform: translate3d(0, 108%, 0);
  transition: transform 1.05s var(--ease);
}
[data-split].is-revealed .line { transform: none; }

[data-reveal] { opacity: 0; transform: translate3d(0, 26px, 0); }
[data-reveal].is-revealed {
  opacity: 1; transform: none;
  transition: opacity .85s var(--ease), transform .95s var(--ease);
}

/* FAQ: altura animada por JS */
.faq div { height: auto; transition: height .55s var(--ease); }
.faq details:not([open]) div { height: 0; }

/* ═══════════ TÁCTIL ═══════════
   Con el dedo no hay hover ni precisión de píxel: agrandamos las zonas de
   toque sin tocar el tamaño visual de nada. */
@media (hover: none), (pointer: coarse) {
  .field input[type="range"] { height: 44px; }
  .field input[type="range"]::-webkit-slider-thumb { width: 20px; height: 20px; margin-top: -9.5px; }
  .field input[type="range"]::-moz-range-thumb { width: 20px; height: 20px; }

  .foot__nav a { padding: 12px 0; }
  .foot__nav  { gap: 0; }
  .foot__contact a { padding: 10px 0; }   /* mail y WhatsApp: los CTA del pie */
  .tier a     { padding: 12px 0; }
  .faq summary { padding-block: clamp(22px, 3vw, 32px); }

  /* 9px es ilegible en mano; el piso pasa a 10 */
  .msg span, .tier__flag { font-size: 10px; }
}

/* ═══════════ RESPONSIVE ═══════════ */
@media (max-width: 1100px) {
  .why, .engine, .tiers, .steps, .excl__grid, .answers { grid-template-columns: 1fr 1fr; }
  .assets ul { grid-template-columns: 1fr 1fr; }
  .calc, .ia { grid-template-columns: 1fr; gap: clamp(40px, 6vw, 70px); }
  .compare { grid-template-columns: 1fr; }
  .hero__grid { grid-template-columns: 1fr; }
  .hero__title, .hero__aside { grid-column: 1; }
  .hero__aside { padding-bottom: 0; }
  .nav__tag { display: none; }
}
@media (max-width: 860px) {
  .nav { grid-template-columns: auto 1fr; }
  .nav__links, .nav__cta { display: none; }
  .nav__burger { display: block; }
  .why, .engine, .tiers, .steps, .excl__grid, .answers { grid-template-columns: 1fr; }
  .assets ul, .form__row { grid-template-columns: 1fr; }
  .foot__top { grid-template-columns: 1fr; }
  .foot__back { justify-self: start; }
  .leaks li { grid-template-columns: 40px 1fr; }
  .leaks p { grid-column: 2; }
  .pin { height: auto; }
  .pin__sticky { position: static; height: auto; padding: var(--sec-y) 0; }
  .flow { width: auto; flex-direction: column; transform: none !important; }
  .flow li { width: auto; }
  .pin__bar { display: none; }
  .why article { min-height: 0; }
  .msg { max-width: 88%; }
  /* 6 columnas en 390px quedan densas: la grilla baja a 3 */
  .sec, .hero, .pin { background-size: calc((100% - var(--pad) * 2) / 3) 100%; }
  /* 2×2 para que las cuatro cifras entren sin cortarse */
  .stats { display: grid; grid-template-columns: 1fr 1fr; gap: 24px 20px; width: 100%; }
  .stats span { max-width: none; }
  .hero__foot { gap: 30px; }
}

/* ═══════════ ACCESIBILIDAD ═══════════ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
  [data-reveal], .line { opacity: 1 !important; transform: none !important; }
  .flow { transform: none !important; }
}