/* =========================================================
   BALCANTI — sistema web
   Grafito 55 · Hueso 30 · Acero 10 · Fundición 4 · Fundido ≤1
   Archivo (display, pesos extremos) · Inter (texto) · IBM Plex Mono (datos)
   ========================================================= */

:root {
  --grafito: #16181A;
  --fundicion: #2E3336;
  --acero: #8A9199;
  --hueso: #F4F2EE;
  --fundido: #FF4A17;

  --display: "Archivo", "Arial Black", system-ui, sans-serif;
  --text: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --gutter: clamp(20px, 8vw, 140px);
  --max: 1520px;
  --nav-h: 76px;
  --ease: cubic-bezier(.2, .7, .1, 1);
  --ease-out: cubic-bezier(.16, 1, .3, 1);
  --seam-shift: 10px; /* el desfase */
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 12px); }
body {
  margin: 0;
  background: var(--grafito);
  color: var(--hueso);
  font-family: var(--text);
  font-size: clamp(16px, 1.05vw, 18px);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
p, h1, h2, h3, blockquote, ul, ol, dl, dd { margin: 0; padding: 0; }
ul, ol { list-style: none; }
::selection { background: var(--hueso); color: var(--grafito); }
:focus-visible { outline: 2px solid var(--acero); outline-offset: 4px; }

.sr, .skip:not(:focus) {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap;
}
.skip:focus { position: fixed; top: 12px; left: 12px; z-index: 200; background: var(--hueso); color: var(--grafito); padding: 10px 16px; }

.wrap { width: 100%; max-width: calc(var(--max) + var(--gutter) * 2); margin: 0 auto; padding: 0 var(--gutter); }

/* ---------- Tipografía base ---------- */
.label {
  font-family: var(--text);
  font-size: 11px;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--acero);
  font-weight: 400;
}
.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; font-size: 13px; letter-spacing: .02em; }
.h2 {
  font-family: var(--display);
  font-stretch: 112%;
  font-weight: 800;
  font-size: clamp(34px, 4.6vw, 76px);
  line-height: 1.02;
  letter-spacing: -.02em;
  max-width: 18ch;
}
.light { font-weight: 250; font-stretch: 100%; letter-spacing: -.01em; }
.h2 .light { display: block; color: var(--acero); }
.theme-light .h2 .light { color: #5b6168; }
.heat { color: var(--fundido); font-style: normal; }
.heat-text { color: var(--fundido); }

/* ---------- Temas por sección ---------- */
.theme-dark { background: var(--grafito); color: var(--hueso); }
.theme-light { background: var(--hueso); color: var(--grafito); }
.theme-light .label { color: #5b6168; }

section { position: relative; }
.section-head { margin-bottom: clamp(48px, 7vw, 110px); display: grid; gap: 22px; }
.section-head--split { grid-template-columns: 1fr; align-items: end; }
.section-head__aside { max-width: 40ch; color: var(--acero); }
.theme-light .section-head__aside { color: #4a5057; }
@media (min-width: 960px) {
  .section-head--split { grid-template-columns: 1.6fr 1fr; gap: 60px; }
}

/* ---------- Botones ---------- */
.btn {
  --bg: var(--hueso); --fg: var(--grafito);
  position: relative; display: inline-flex; align-items: center; gap: 12px;
  padding: 18px 28px;
  background: var(--bg); color: var(--fg);
  font-family: var(--text); font-weight: 500; font-size: 15px; letter-spacing: .01em;
  border-radius: 0; overflow: hidden; isolation: isolate;
  transition: color .45s var(--ease);
  will-change: transform;
}
.btn::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: var(--fundicion);
  transform: translateX(-101%);
  transition: transform .55s var(--ease-out);
}
.btn:hover { color: var(--hueso); }
.btn:hover::before { transform: translateX(0); }
.btn span { position: relative; display: inline-block; transition: transform .45s var(--ease-out); }
.btn::after { /* flecha-costura: una línea que se interrumpe con desfase */
  content: ""; width: 24px; height: 6px; flex-shrink: 0;
  background:
    linear-gradient(currentColor, currentColor) 0 0 / 13px 2px no-repeat,
    linear-gradient(currentColor, currentColor) 13px 4px / 11px 2px no-repeat;
  transition: transform .45s var(--ease-out);
}
.btn:hover::after { transform: translateX(4px); }
.btn--small { padding: 12px 18px; font-size: 14px; }
.btn--small::after { display: none; }
.theme-light .btn { --bg: var(--grafito); --fg: var(--hueso); }

.link {
  position: relative; font-weight: 500; font-size: 15px; padding: 6px 0;
  display: inline-flex;
}
.link::after, .footer__nav a::after, .nav__links a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 2px;
  background: currentColor; transform: scaleX(0); transform-origin: right;
  transition: transform .5s var(--ease-out);
}
.link:hover::after, .footer__nav a:hover::after, .nav__links a:hover::after { transform: scaleX(1); transform-origin: left; }
.link::after { transform: scaleX(1); opacity: .35; }
.link:hover::after { opacity: 1; }

/* ---------- La costura ---------- */
.seam { position: relative; height: calc(2px + var(--seam-shift)); width: 100%; }
.seam i { position: absolute; height: 2px; background: var(--acero); opacity: .55; transform-origin: left; transform: scaleX(0); transition: transform 1.4s var(--ease-out); }
.seam i:first-child { left: 0; width: 58%; top: 0; }
.seam i:last-child { left: 58%; right: 0; top: var(--seam-shift); transition-delay: .35s; }
.seam.is-in i { transform: scaleX(1); }
.seam--contact i:last-child { background: var(--fundido); opacity: 1; }

/* =========================================================
   SPLASH
   ========================================================= */
.splash {
  position: fixed; inset: 0; z-index: 150;
  background: var(--grafito);
  display: grid; place-items: center;
  pointer-events: none;
  animation: splashSafety 0s linear 3.2s forwards; /* red de seguridad sin JS */
}
.splash__seam { position: absolute; left: 0; right: 0; top: 50%; height: 14px; }
.splash__line { position: absolute; height: 2px; transform-origin: left; transform: scaleX(0); }
.splash__line--a { left: 0; width: 56%; top: 0; background: var(--acero); animation: seamDraw .7s var(--ease-out) .1s forwards; }
.splash__line--b { left: 56%; right: 0; top: 10px; background: var(--fundido); animation: seamDraw .6s var(--ease-out) .55s forwards; }
.splash__mono { position: relative; width: 64px; opacity: 0; transform: translateY(-46px); animation: monoIn .6s var(--ease-out) .35s forwards; }
.splash.is-out { transition: clip-path .9s var(--ease-out), visibility 0s .9s; clip-path: inset(0 0 100% 0); visibility: hidden; }
html.no-splash .splash { display: none; }
@keyframes seamDraw { to { transform: scaleX(1); } }
@keyframes monoIn { to { opacity: 1; transform: translateY(-50px); } }
@keyframes splashSafety { to { visibility: hidden; opacity: 0; } }

/* =========================================================
   Progreso + cursor
   ========================================================= */
.progress { position: fixed; top: 0; left: 0; right: 0; height: 2px; z-index: 120; pointer-events: none; }
.progress span { display: block; height: 100%; width: 100%; background: var(--acero); transform-origin: left; transform: scaleX(var(--p, 0)); }

.cursor { display: none; }
@media (hover: hover) and (pointer: fine) {
  .cursor {
    display: block; position: fixed; top: 0; left: 0; z-index: 130; pointer-events: none;
    width: 10px; height: 10px; margin: -5px 0 0 -5px;
    background: var(--hueso); mix-blend-mode: difference;
    transform: translate3d(var(--cx, -100px), var(--cy, -100px), 0) scale(var(--cs, 1));
    transition: transform .18s var(--ease-out), opacity .3s;
    opacity: 0;
  }
  .cursor.is-on { opacity: 1; }
}

/* =========================================================
   NAV
   ========================================================= */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h);
  display: flex; align-items: center; gap: 32px;
  padding: 0 var(--gutter);
  color: var(--hueso);
  transition: transform .6s var(--ease-out), background-color .4s, backdrop-filter .4s;
}
.nav.is-solid { background: rgba(22, 24, 26, .82); -webkit-backdrop-filter: blur(14px) saturate(120%); backdrop-filter: blur(14px) saturate(120%); }
.nav.is-hidden { transform: translateY(-100%); }
.nav__brand img { width: 118px; height: auto; }
.nav__links { display: none; margin-left: auto; gap: 34px; font-size: 14px; }
.nav__links a { position: relative; padding: 4px 0; color: rgba(244, 242, 238, .78); transition: color .3s; }
.nav__links a:hover, .nav__links a.is-active { color: var(--hueso); }
.nav__cta { display: none; }
.nav__toggle {
  margin-left: auto; width: 44px; height: 44px; border: 0; background: transparent; cursor: pointer;
  position: relative; color: var(--hueso);
}
.nav__toggle i { position: absolute; left: 10px; right: 10px; height: 2px; background: currentColor; transition: transform .45s var(--ease-out); }
.nav__toggle i:first-of-type { top: 17px; right: 13px; }
.nav__toggle i:last-of-type { top: 25px; left: 13px; }
.nav__toggle[aria-expanded="true"] i:first-of-type { transform: translateY(4px) rotate(45deg); right: 10px; }
.nav__toggle[aria-expanded="true"] i:last-of-type { transform: translateY(-4px) rotate(-45deg); left: 10px; }
@media (min-width: 1024px) {
  .nav__links { display: flex; }
  .nav__cta { display: inline-flex; }
  .nav__toggle { display: none; }
}

.menu {
  position: fixed; inset: 0; z-index: 90; background: var(--grafito);
  padding: calc(var(--nav-h) + 40px) var(--gutter) 40px;
  display: flex; flex-direction: column; justify-content: space-between;
  clip-path: inset(0 0 100% 0); transition: clip-path .7s var(--ease-out);
}
.menu[hidden] { display: none; }
.menu.is-open { clip-path: inset(0 0 0 0); }
.menu nav { display: grid; gap: 6px; }
.menu nav a {
  font-family: var(--display); font-weight: 800; font-stretch: 112%;
  font-size: clamp(36px, 10vw, 64px); line-height: 1.1; letter-spacing: -.02em;
  display: flex; align-items: baseline; gap: 16px;
  opacity: 0; transform: translateX(-20px); transition: opacity .5s, transform .6s var(--ease-out);
}
.menu nav a small { font-family: var(--mono); font-size: 12px; font-weight: 400; color: var(--acero); letter-spacing: 0; }
.menu.is-open nav a { opacity: 1; transform: none; }
.menu.is-open nav a:nth-child(2) { transition-delay: .05s; }
.menu.is-open nav a:nth-child(3) { transition-delay: .1s; }
.menu.is-open nav a:nth-child(4) { transition-delay: .15s; }
.menu.is-open nav a:nth-child(5) { transition-delay: .2s; }
.menu.is-open nav a:nth-child(6) { transition-delay: .25s; }
.menu__foot { color: var(--acero); font-size: 14px; }

/* =========================================================
   HERO
   ========================================================= */
.hero {
  min-height: 100svh;
  display: flex; flex-direction: column; justify-content: flex-end;
  padding-top: calc(var(--nav-h) + 40px);
  overflow: hidden;
}
.hero__inner { position: relative; z-index: 2; }
.hero__label { margin-bottom: clamp(28px, 4vw, 48px); }
.hero__title {
  font-family: var(--display);
  font-stretch: 125%;
  font-weight: 800;
  font-size: clamp(34px, 10.2vw, 188px);
  line-height: .92;
  letter-spacing: -.035em;
  margin-left: -.04em;
  white-space: nowrap;
}
@media (max-width: 600px) {
  .hero__title { font-stretch: 112%; font-size: 11.2vw; }
  .is-ready .hero__title .line--shift > span, html:not(.js) .hero__title .line--shift > span { transform: translateX(.22em); }
}
.hero__title .line { display: block; overflow: hidden; padding-bottom: .04em; }
/* sin opacidad: el texto se desliza desde fuera de su línea y nunca queda invisible por culpa de una animación */
.hero__title .line > span { display: inline-block; transform: translateX(-102%); transition: transform 1.3s var(--ease-out); }
.is-ready .hero__title .line > span { transform: translateX(0); }
.is-ready .hero__title .line--shift > span { transform: translateX(.55em); } /* se detienen sin alinearse */
.is-ready .hero__title .line:nth-child(2) > span { transition-delay: .12s; }
.is-ready .hero__title .line:nth-child(3) > span { transition-delay: .24s; }

.hero__foot {
  margin-top: clamp(36px, 5vw, 64px);
  display: grid; gap: 32px; align-items: end;
}
.hero__lead { max-width: 46ch; color: rgba(244, 242, 238, .78); font-size: clamp(16px, 1.2vw, 19px); }
.hero__actions { display: flex; flex-wrap: wrap; align-items: center; gap: 22px 32px; }
@media (min-width: 960px) {
  .hero__foot { grid-template-columns: 1fr auto; }
}
.hero__meta {
  position: relative; z-index: 2;
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px 24px;
  margin-top: clamp(48px, 7vw, 96px); padding-bottom: 22px;
  color: var(--acero);
}
.hero__clock b { font-weight: 500; color: var(--hueso); }
.hero .seam { z-index: 2; }

/* monograma en dos planos: entran deslizándose y se detienen con el desfase */
.hero__mono {
  position: absolute; z-index: 1;
  right: calc(var(--gutter) * -.4); top: calc(var(--nav-h) + 2vh);
  width: min(62vw, 880px); aspect-ratio: 596 / 522;
  opacity: .07; pointer-events: none;
}
.hero__plane {
  position: absolute; inset: 0;
  background: url("assets/img/monograma-hueso.webp?v=20260925") center / contain no-repeat;
  transition: transform 1.6s var(--ease-out);
}
.hero__plane--top { clip-path: inset(0 0 50% 0); transform: translateX(-24%); }
.hero__plane--bottom { clip-path: inset(50% 0 0 0); transform: translateX(24%); }
.is-ready .hero__plane { transform: translateX(0); }
@media (max-width: 720px) {
  .hero__mono { width: 110vw; right: -30vw; top: 12vh; opacity: .06; }
}

/* =========================================================
   TESIS
   ========================================================= */
.thesis { padding: clamp(110px, 14vw, 220px) 0; }
.thesis__big {
  font-family: var(--display); font-weight: 800; font-stretch: 112%;
  font-size: clamp(38px, 6.4vw, 112px); line-height: 1; letter-spacing: -.03em;
  margin: 28px 0 clamp(48px, 6vw, 90px); max-width: 15ch;
}
.thesis__words {
  font-family: var(--display); font-weight: 250; font-stretch: 100%;
  font-size: clamp(22px, 2.6vw, 42px); line-height: 1.28; letter-spacing: -.01em;
  max-width: 32ch; margin-left: auto;
}
.thesis__words .w { opacity: var(--o, .16); transition: opacity .25s linear; }
.thesis__grid {
  display: grid; gap: 40px; margin-top: clamp(80px, 10vw, 150px);
  padding-top: 32px; border-top: 2px solid rgba(22, 24, 26, .14);
}
.thesis__grid .mono { color: #5b6168; margin-bottom: 12px; text-transform: uppercase; font-size: 12px; letter-spacing: .12em; }
.thesis__grid p:last-child { font-family: var(--display); font-weight: 700; font-size: clamp(20px, 1.7vw, 26px); line-height: 1.2; letter-spacing: -.01em; }
@media (min-width: 860px) { .thesis__grid { grid-template-columns: repeat(3, 1fr); } }

/* =========================================================
   DUDAS — tarjetas apiladas
   ========================================================= */
.doubts { padding: clamp(110px, 12vw, 200px) 0 clamp(80px, 10vw, 160px); }
.stack { display: grid; gap: 22px; }
.card {
  position: sticky; top: calc(var(--nav-h) + 20px);
  background: var(--fundicion);
  padding: clamp(28px, 4vw, 64px);
  display: grid; gap: 22px 60px;
  min-height: min(62vh, 520px);
  align-content: space-between;
  box-shadow: 0 -30px 60px -30px rgba(0, 0, 0, .5);
}
.card:nth-child(2) { top: calc(var(--nav-h) + 38px); margin-left: var(--seam-shift); }
.card:nth-child(3) { top: calc(var(--nav-h) + 56px); }
.card:nth-child(4) { top: calc(var(--nav-h) + 74px); margin-left: var(--seam-shift); }
.card__num { color: var(--acero); }
.card__quote {
  font-family: var(--display); font-weight: 800; font-stretch: 112%;
  font-size: clamp(28px, 4vw, 64px); line-height: 1.02; letter-spacing: -.025em;
  max-width: 20ch;
}
.card__answer { color: rgba(244, 242, 238, .82); max-width: 44ch; font-size: clamp(16px, 1.25vw, 19px); border-top: 2px solid rgba(138, 145, 153, .35); padding-top: 20px; }
@media (min-width: 960px) {
  .card { grid-template-columns: 1.7fr 1fr; grid-template-rows: auto 1fr; }
  .card__num { grid-column: 1 / -1; }
  .card__answer { align-self: end; }
}

/* =========================================================
   PLANOS (posicionamiento)
   ========================================================= */
.planes { padding: clamp(60px, 8vw, 120px) 0 clamp(110px, 12vw, 190px); overflow: hidden; }
.planes__row { display: grid; }
.plane { padding: clamp(40px, 6vw, 96px) var(--gutter); transition: transform 1.4s var(--ease-out), opacity 1s; }
.plane .label { margin-bottom: 20px; }
.plane__text {
  font-family: var(--display); font-weight: 800; font-stretch: 118%;
  font-size: clamp(32px, 5.4vw, 96px); line-height: .98; letter-spacing: -.03em; max-width: 16ch;
}
.plane--a { background: var(--fundicion); width: min(100%, 1180px); transform: translateX(-30%); opacity: 0; }
.plane--b { background: var(--hueso); color: var(--grafito); width: min(100%, 1280px); justify-self: end; transform: translateX(30%); opacity: 0; }
.plane--b .label { color: #5b6168; }
.plane--b .light { display: block; color: #5b6168; }
[data-planes].is-in .plane--a { transform: translateX(0); opacity: 1; }
[data-planes].is-in .plane--b { transform: translateX(-10vw); opacity: 1; transition-delay: .15s; }
@media (max-width: 860px) {
  .plane--a { width: auto; margin-right: 28px; }
  .plane--b { width: auto; margin-left: 28px; }
  [data-planes].is-in .plane--b { transform: none; }
}
.planes__claim { margin-top: 40px; color: var(--acero); text-align: right; font-size: 14px; }

/* =========================================================
   SERVICIOS
   ========================================================= */
.services { padding: clamp(80px, 10vw, 160px) 0 clamp(110px, 12vw, 200px); border-top: 2px solid rgba(138, 145, 153, .12); }
.core {
  display: grid; gap: 20px;
  padding: clamp(32px, 5vw, 72px) 0;
  border-top: 2px solid var(--hueso);
}
.core__tag { color: var(--acero); text-transform: uppercase; letter-spacing: .12em; font-size: 12px; }
.core__title {
  font-family: var(--display); font-weight: 800; font-stretch: 125%;
  font-size: clamp(40px, 7.6vw, 136px); line-height: .92; letter-spacing: -.035em;
}
.core__text { max-width: 52ch; color: rgba(244, 242, 238, .78); }
@media (min-width: 960px) { .core { grid-template-columns: 1fr 1fr; } .core__tag, .core__title { grid-column: 1 / -1; } .core__text { grid-column: 2; } }

.rows { border-top: 2px solid rgba(138, 145, 153, .28); }
.row {
  position: relative; isolation: isolate;
  display: grid; grid-template-columns: 40px 1fr; gap: 8px 20px;
  padding: clamp(24px, 3vw, 40px) 0;
  border-bottom: 2px solid rgba(138, 145, 153, .28);
}
.row::before {
  content: ""; position: absolute; z-index: -1; inset: 0 calc(var(--gutter) * -.5);
  background: var(--fundicion);
  transform: scaleY(0); transform-origin: bottom;
  transition: transform .6s var(--ease-out);
}
.row:hover::before { transform: scaleY(1); }
.row__num { color: var(--acero); padding-top: .5em; }
.row__title {
  font-family: var(--display); font-weight: 700; font-stretch: 112%;
  font-size: clamp(24px, 3vw, 48px); line-height: 1.05; letter-spacing: -.02em;
  transition: transform .6s var(--ease-out);
}
.row:hover .row__title { transform: translateX(var(--seam-shift)); }
.row__text { grid-column: 2; color: var(--acero); max-width: 50ch; }
@media (min-width: 960px) {
  .row { grid-template-columns: 60px 1.2fr 1fr; align-items: center; }
  .row__text { grid-column: 3; }
}

/* =========================================================
   CÓMO EMPEZAMOS
   ========================================================= */
.open { padding: clamp(110px, 12vw, 200px) 0; }
.steps3 { display: grid; gap: 0; border-top: 2px solid var(--grafito); }
.steps3 li { padding: 32px 0 40px; border-bottom: 2px solid rgba(22, 24, 26, .14); display: grid; gap: 14px; }
.steps3 .mono { color: #5b6168; }
.steps3 h3 {
  font-family: var(--display); font-weight: 800; font-stretch: 112%;
  font-size: clamp(26px, 2.8vw, 42px); line-height: 1.05; letter-spacing: -.02em;
}
.steps3 p { color: #3e444a; max-width: 38ch; }
@media (min-width: 960px) {
  .steps3 { grid-template-columns: repeat(3, 1fr); }
  .steps3 li { border-bottom: 0; padding: 36px 40px 0 0; }
  .steps3 li + li { padding-left: 40px; border-left: 2px solid rgba(22, 24, 26, .14); }
  .steps3 li:nth-child(2) { margin-top: var(--seam-shift); }
}

.mix { margin-top: clamp(90px, 10vw, 160px); }
.mix__head { margin-bottom: 22px; }
.mix__bar { display: flex; height: clamp(120px, 14vw, 200px); gap: 2px; }
.mix__bar span {
  position: relative; flex: 0 0 calc(var(--w) * 1%); background: var(--grafito); color: var(--hueso);
  padding: 16px; display: flex; flex-direction: column; justify-content: space-between;
  transform-origin: left; transform: scaleX(0); transition: transform 1.2s var(--ease-out);
  overflow: hidden;
}
.mix__bar span:nth-child(2) { background: var(--fundicion); transition-delay: .1s; }
.mix__bar span:nth-child(3) { background: #4a5057; transition-delay: .2s; }
.mix__bar span:nth-child(4) { background: var(--grafito); transition-delay: .3s; }
.mix__bar span.is-heat::after { content: ""; position: absolute; top: 16px; right: 16px; width: 10px; height: 10px; background: var(--fundido); }
.mix.is-in .mix__bar span { transform: scaleX(1); }
.mix__bar b { font-family: var(--display); font-weight: 800; font-stretch: 112%; font-size: clamp(28px, 4vw, 64px); line-height: 1; letter-spacing: -.02em; }
.mix__bar b::after { content: "%"; font-family: var(--mono); font-weight: 400; font-size: .32em; margin-left: 4px; vertical-align: top; letter-spacing: 0; }
.mix__bar i { font-style: normal; font-size: 12px; letter-spacing: .2em; text-transform: uppercase; color: var(--acero); }
.mix__legend { display: grid; gap: 14px 30px; margin-top: 28px; grid-template-columns: repeat(2, 1fr); }
.mix__legend dt { font-weight: 500; }
.mix__legend dd { color: #4a5057; font-size: 15px; }
@media (min-width: 960px) { .mix__legend { grid-template-columns: repeat(4, 1fr); } }
@media (max-width: 600px) {
  .mix__bar i { display: none; }
  .mix__bar span { padding: 10px 8px; }
  .mix__bar b { font-size: 20px; }
  .mix__bar b::after { display: none; }
  .mix__bar span.is-heat::after { top: auto; bottom: 10px; right: auto; left: 8px; width: 8px; height: 8px; }
}

/* =========================================================
   CASOS — ficha
   ========================================================= */
.cases { padding: clamp(110px, 12vw, 200px) 0; }
.sheet { background: var(--grafito); color: var(--hueso); }
.sheet__head {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px;
  padding: 20px clamp(24px, 4vw, 56px); border-bottom: 2px solid rgba(138, 145, 153, .25); color: var(--acero);
}
.sheet__body { display: grid; }
.metric { padding: clamp(32px, 5vw, 72px) clamp(24px, 4vw, 56px); display: grid; gap: 14px; align-content: start; }
.metric__fig { font-family: var(--display); font-weight: 800; font-stretch: 125%; font-size: clamp(88px, 13vw, 220px); line-height: .85; letter-spacing: -.04em; }
.metric__fig small { font-size: .28em; margin-left: 6px; vertical-align: top; letter-spacing: 0; color: var(--acero); }
.metric__unit { font-size: 15px; color: var(--hueso); text-transform: uppercase; letter-spacing: .08em; }
.metric__ctx { color: rgba(244, 242, 238, .74); max-width: 42ch; }
.metric__note { color: var(--acero); margin-top: 18px; padding-top: 18px; border-top: 2px solid rgba(138, 145, 153, .25); }
.sheet__blocks { border-top: 2px solid rgba(138, 145, 153, .25); }
.sheet__blocks li {
  display: grid; grid-template-columns: 38px 1fr; gap: 4px 12px;
  padding: 22px clamp(24px, 4vw, 56px); border-bottom: 2px solid rgba(138, 145, 153, .18);
  transition: background-color .4s;
}
.sheet__blocks li:last-child { border-bottom: 0; }
.sheet__blocks li:hover { background: var(--fundicion); }
.sheet__blocks .mono { color: var(--acero); padding-top: 3px; }
.sheet__blocks b { font-family: var(--display); font-weight: 700; font-stretch: 112%; font-size: 22px; letter-spacing: -.01em; }
.sheet__blocks p { grid-column: 2; color: var(--acero); font-size: 15px; }
.sheet__blocks .is-key { background: var(--fundicion); }
.sheet__blocks .is-key b { color: var(--fundido); font-size: 26px; }
@media (min-width: 1000px) {
  .sheet__body { grid-template-columns: 1.15fr 1fr; }
  .sheet__blocks { border-top: 0; border-left: 2px solid rgba(138, 145, 153, .25); }
}

/* =========================================================
   MARQUEE
   ========================================================= */
.marquee { padding: clamp(44px, 5vw, 72px) 0; overflow: hidden; border-top: 2px solid rgba(138, 145, 153, .12); border-bottom: 2px solid rgba(138, 145, 153, .12); }
.marquee__track { display: flex; width: max-content; animation: marquee 38s linear infinite; }
.marquee:hover .marquee__track { animation-play-state: paused; }
.marquee p { display: flex; align-items: center; flex-shrink: 0; }
.marquee span {
  font-family: var(--display); font-weight: 800; font-stretch: 118%;
  font-size: clamp(34px, 5vw, 84px); letter-spacing: -.03em; white-space: nowrap; padding: 0 .5em;
}
.marquee span:nth-of-type(2) { font-weight: 250; font-stretch: 100%; color: var(--acero); }
.marquee i { width: 60px; height: 12px; position: relative; flex-shrink: 0; }
.marquee i::before, .marquee i::after { content: ""; position: absolute; height: 2px; background: var(--acero); width: 30px; }
.marquee i::before { left: 0; top: 0; } .marquee i::after { left: 30px; top: 10px; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* =========================================================
   VALORES
   ========================================================= */
.values { padding: clamp(110px, 12vw, 200px) 0; }
.vlist { border-top: 2px solid rgba(138, 145, 153, .28); }
.v {
  display: grid; grid-template-columns: 40px 1fr; gap: 10px 20px;
  padding: clamp(26px, 3vw, 44px) 0; border-bottom: 2px solid rgba(138, 145, 153, .28);
}
.v .mono { color: var(--acero); padding-top: .6em; }
.v h3 { font-family: var(--display); font-weight: 800; font-stretch: 112%; font-size: clamp(26px, 3.4vw, 56px); line-height: 1.02; letter-spacing: -.025em; max-width: 22ch; }
.v p { grid-column: 2; color: var(--acero); max-width: 50ch; }
@media (min-width: 1000px) {
  .v { grid-template-columns: 60px 1.3fr 1fr; align-items: baseline; }
  .v p { grid-column: 3; }
}

/* =========================================================
   PARA QUIÉN
   ========================================================= */
.who { padding: clamp(110px, 12vw, 200px) 0; }
.who__grid { display: grid; gap: 56px; }
.who .h2 { margin: 22px 0 32px; max-width: 14ch; }
.who__text { color: #3e444a; max-width: 46ch; margin-bottom: 16px; }
.who__list { border-top: 2px solid var(--grafito); align-self: end; }
.who__list li {
  display: grid; grid-template-columns: 70px 1fr; gap: 16px; align-items: baseline;
  padding: 22px 0; border-bottom: 2px solid rgba(22, 24, 26, .14);
  font-family: var(--display); font-weight: 700; font-size: clamp(19px, 1.7vw, 26px); line-height: 1.2; letter-spacing: -.01em;
}
.who__list .mono { color: #5b6168; font-weight: 400; }
.who__limit { margin-top: clamp(60px, 7vw, 110px); display: flex; gap: 18px; align-items: baseline; max-width: 70ch; color: #3e444a; }
.who__limit .mono { color: var(--grafito); text-transform: uppercase; letter-spacing: .12em; font-size: 12px; flex-shrink: 0; }
@media (min-width: 1000px) { .who__grid { grid-template-columns: 1fr 1fr; gap: 90px; } }

/* =========================================================
   CONTACTO
   ========================================================= */
.contact { padding: clamp(120px, 14vw, 220px) 0 0; }
.contact__title {
  font-family: var(--display); font-weight: 800; font-stretch: 125%;
  font-size: clamp(40px, 7.4vw, 132px); line-height: .94; letter-spacing: -.035em;
  margin: 28px 0 0; max-width: 16ch;
}
.contact__title .light { display: block; color: var(--acero); }
.contact__lead { color: rgba(244, 242, 238, .78); max-width: 44ch; font-size: clamp(17px, 1.3vw, 20px); }
.contact__layout { display: grid; gap: 48px; margin: clamp(48px, 6vw, 90px) 0 clamp(90px, 10vw, 150px); }
.contact__note { color: var(--acero); margin-top: 18px; }
@media (min-width: 1000px) { .contact__layout { grid-template-columns: 1fr 1.5fr; gap: 90px; } }

.form { display: grid; gap: 28px; }
.form__grid { display: grid; gap: 0 32px; border-top: 2px solid rgba(138, 145, 153, .28); }
@media (min-width: 700px) { .form__grid { grid-template-columns: 1fr 1fr; } .field--full { grid-column: 1 / -1; } }
.field { display: grid; gap: 6px; padding: 20px 0 14px; border-bottom: 2px solid rgba(138, 145, 153, .28); position: relative; }
.field::after { content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 2px; background: var(--hueso); transform: scaleX(0); transform-origin: left; transition: transform .5s var(--ease-out); }
.field:focus-within::after { transform: scaleX(1); }
.field__label { font-size: 11px; letter-spacing: .24em; text-transform: uppercase; color: var(--acero); }
.field__label em { font-style: normal; color: var(--hueso); }
.field input, .field textarea {
  width: 100%; background: transparent; border: 0; outline: 0; padding: 4px 0;
  color: var(--hueso); font: 400 clamp(17px, 1.3vw, 20px)/1.4 var(--text); resize: vertical;
  border-radius: 0; -webkit-appearance: none; appearance: none;
}
.field input::placeholder, .field textarea::placeholder { color: rgba(138, 145, 153, .6); }
.field.is-error .field__label { color: var(--hueso); }
.field.is-error::after { transform: scaleX(1); background: var(--acero); }
.field--trap { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.check { display: flex; gap: 14px; align-items: flex-start; font-size: 14px; color: rgba(244, 242, 238, .74); cursor: pointer; }
.check input { -webkit-appearance: none; appearance: none; flex-shrink: 0; width: 20px; height: 20px; margin: 1px 0 0; border: 2px solid var(--acero); background: transparent; cursor: pointer; display: grid; place-items: center; }
.check input:checked { background: var(--hueso); border-color: var(--hueso); }
.check input:checked::after { content: ""; width: 8px; height: 8px; background: var(--grafito); }
.check.is-error span { color: var(--hueso); text-decoration: underline; text-decoration-color: var(--acero); text-underline-offset: 4px; }
.form__foot { display: flex; flex-wrap: wrap; align-items: center; gap: 18px 28px; }
.form .btn { border: 0; cursor: pointer; }
.form .btn[disabled] { opacity: .6; cursor: progress; }
.form__status { font-size: 15px; color: rgba(244, 242, 238, .82); max-width: 42ch; }
.form.is-sent .form__grid, .form.is-sent .check, .form.is-sent .btn { display: none; }
.form.is-sent .form__status { font-family: var(--display); font-weight: 700; font-stretch: 112%; font-size: clamp(24px, 2.4vw, 36px); line-height: 1.15; letter-spacing: -.02em; color: var(--hueso); max-width: 22ch; }

/* =========================================================
   FOOTER
   ========================================================= */
.footer { padding: clamp(70px, 8vw, 120px) 0 28px; }
.footer__top { display: grid; gap: 40px; margin-bottom: clamp(60px, 8vw, 120px); }
.footer__contact { display: grid; gap: 10px; font-size: 15px; }
.footer__contact li { display: grid; grid-template-columns: 90px 1fr; gap: 12px; align-items: baseline; }
.footer__contact .mono { color: var(--acero); font-size: 11px; text-transform: uppercase; letter-spacing: .12em; }
.footer__contact a { color: var(--hueso); transition: color .3s; }
.footer__contact a:hover { color: var(--acero); }
.footer__tag { font-family: var(--display); font-weight: 250; font-size: clamp(28px, 3.2vw, 52px); line-height: 1.05; letter-spacing: -.02em; }
.footer__nav { display: flex; flex-wrap: wrap; gap: 14px 30px; align-self: end; }
.footer__nav a { position: relative; color: var(--acero); transition: color .3s; padding: 2px 0; }
.footer__nav a:hover { color: var(--hueso); }
.footer__lockup { width: 100%; height: auto; opacity: .96; }
.footer__base { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px 24px; margin-top: 40px; padding-top: 22px; border-top: 2px solid rgba(138, 145, 153, .2); color: var(--acero); }
.link-top:hover { color: var(--hueso); }
@media (min-width: 960px) { .footer__top { grid-template-columns: 1.2fr 1fr auto; align-items: end; } }

/* =========================================================
   Revelado al hacer scroll (con JS). Sin JS todo se ve.
   ========================================================= */
.js .reveal { opacity: 0; transform: translateY(26px); transition: opacity 1s var(--ease), transform 1.1s var(--ease-out); }
.js .reveal.is-in { opacity: 1; transform: none; }
.js .reveal.is-in:nth-child(2) { transition-delay: .06s; }
.js .reveal.is-in:nth-child(3) { transition-delay: .12s; }
.js .reveal.is-in:nth-child(4) { transition-delay: .18s; }
.js .reveal.is-in:nth-child(5) { transition-delay: .24s; }

/* Sin JS: los elementos animados aparecen en su estado final */
html:not(.js) .hero__title .line > span { transform: none; opacity: 1; }
html:not(.js) .hero__title .line--shift > span { transform: translateX(.55em); }
html:not(.js) .hero__plane { transform: none; }
html:not(.js) .seam i { transform: scaleX(1); }
html:not(.js) .plane--a, html:not(.js) .plane--b { opacity: 1; transform: none; }
html:not(.js) .mix__bar span { transform: none; }
html:not(.js) .splash { display: none; }

/* Movimiento reducido: solo se apagan los efectos intrusivos */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .splash { display: none; }
  .marquee__track { animation-duration: 90s; }
}