/* ==========================================================
   COMERCIALIZADORA TRAFAD — Sistema visual
   Concepto: "Ordenar para vender" — los techos/chevrones del logotipo
   se apilan como niveles de crecimiento comercial.
   ========================================================== */

:root {
  /* Color (derivado del logotipo #597B8B) */
  --ink: #0d1a22;
  --ink-2: #14262f;
  --slate: #597b8b;
  --slate-deep: #3b5866;
  --slate-soft: #8fa9b6;
  --sage: #284641;
  --paper: #f3f1ec;
  --bone: #eef1f0;
  --sand: #d9b98c;
  --line-dark: rgba(238, 241, 240, .16);
  --line-light: rgba(13, 26, 34, .16);
  --muted-dark: rgba(238, 241, 240, .72);
  --muted-light: rgba(13, 26, 34, .72);
  --error: #ffb4a6;

  /* Tipografía */
  --font-display: "Instrument Serif", "Times New Roman", serif;
  --font-body: "Manrope", system-ui, -apple-system, "Segoe UI", sans-serif;

  /* Espaciado */
  --space-xs: .5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: clamp(5rem, 10vw, 9rem);
  --gutter: clamp(1.25rem, 4vw, 3.5rem);
  --radius-sm: 2px;

  --ease: cubic-bezier(.77, 0, .18, 1);
  --ease-out: cubic-bezier(.16, 1, .3, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: auto; -webkit-text-size-adjust: 100%; }
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
.lenis.lenis-stopped { overflow: hidden; }

body {
  margin: 0;
  background: var(--ink);
  color: var(--bone);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; padding: 0; }
h1, h2, h3, h4, p, ul, ol, dl, dd, figure, blockquote { margin: 0; padding: 0; }
ul, ol { list-style: none; }
em { font-style: italic; }
::selection { background: var(--sand); color: var(--ink); }

:focus-visible { outline: 2px solid var(--sand); outline-offset: 4px; }

.skip {
  position: fixed; left: 1rem; top: -4rem; z-index: 200;
  background: var(--sand); color: var(--ink); padding: .75rem 1rem; font-weight: 700;
}
.skip:focus { top: 1rem; }

.wrap { width: 100%; max-width: 1360px; margin-inline: auto; padding-inline: var(--gutter); }

.kicker {
  display: flex; align-items: center; gap: .8rem;
  font-size: .78rem; font-weight: 700; letter-spacing: .18em; text-transform: uppercase;
  color: var(--slate-deep);
}
.kicker span { font-family: var(--font-display); font-style: italic; font-size: 1.15rem; letter-spacing: 0; text-transform: none; }
.kicker::after { content: ""; flex: 0 0 3.5rem; height: 1px; background: currentColor; opacity: .6; }
.kicker--light { color: var(--slate-soft); }

/* ---------- Reveal ---------- */
.js [data-reveal] { opacity: 0; transform: translateY(32px); transition: opacity 1s var(--ease-out), transform 1.1s var(--ease-out); }
.js [data-reveal].in { opacity: 1; transform: none; }

/* ---------- Telón de entrada ---------- */
.curtain {
  position: fixed; inset: 0; z-index: 300; background: var(--ink);
  display: grid; place-items: center;
  transition: transform 1s var(--ease) .25s;
}
.curtain__mark { width: 84px; overflow: visible; }
.curtain__mark polygon { fill: none; stroke: var(--slate-soft); stroke-width: 2; stroke-dasharray: 700; stroke-dashoffset: 700; animation: draw 1.1s var(--ease-out) forwards; }
.curtain__mark .c2 { animation-delay: .15s; } .curtain__mark .c3 { animation-delay: .3s; fill: var(--sand); stroke: var(--sand); fill-opacity: 0; }
@keyframes draw { to { stroke-dashoffset: 0; } }
html.ready .curtain { transform: translateY(-100%); pointer-events: none; }
html:not(.js) .curtain { display: none; }

/* ---------- Cursor ---------- */
.cursor { display: none; }
@media (hover: hover) and (pointer: fine) {
  .js .cursor {
    display: block; position: fixed; left: 0; top: 0; z-index: 250; pointer-events: none;
    width: 38px; height: 38px; margin: -19px 0 0 -19px;
    border: 1px solid #fff; border-radius: 50%; mix-blend-mode: difference;
    transition: width .35s var(--ease-out), height .35s var(--ease-out), margin .35s var(--ease-out), background .35s, opacity .3s;
    opacity: 0;
  }
  .cursor.on { opacity: 1; }
  .cursor.big { width: 72px; height: 72px; margin: -36px 0 0 -36px; background: #fff; }
}

/* ---------- Header ---------- */
.header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.1rem var(--gutter);
  color: var(--bone);
  transition: background .5s, color .5s, padding .5s var(--ease-out), transform .6s var(--ease-out);
}
.header__logo img { height: clamp(30px, 3.2vw, 42px); width: auto; transition: filter .5s; filter: brightness(0) invert(1); }
.header.is-stuck { padding-block: .7rem; }
.header.on-dark.is-stuck { background: rgba(13, 26, 34, .8); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); }
.header.on-light { color: var(--ink); }
.header.on-light .header__logo img { filter: none; }
.header.on-light.is-stuck { background: rgba(243, 241, 236, .84); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); }
.header__progress { position: absolute; left: 0; bottom: 0; height: 2px; width: 100%; background: var(--sand); transform-origin: left; transform: scaleX(0); }

.header__nav { display: flex; align-items: center; gap: clamp(1rem, 2.6vw, 2.6rem); }
.header__nav a {
  position: relative; font-size: .86rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; padding: .5rem 0;
}
.header__nav a span { display: inline-block; transition: transform .45s var(--ease-out); }
.header__nav a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: .1rem; height: 1px; background: currentColor;
  transform: scaleX(0); transform-origin: right; transition: transform .5s var(--ease-out);
}
.header__nav a:hover::after, .header__nav a.is-current::after { transform: scaleX(1); transform-origin: left; }
.header__nav .nav-cta { padding: .7rem 1.4rem; border: 1px solid currentColor; border-radius: var(--radius-sm); transition: background .4s, color .4s; }
.header__nav .nav-cta::after { display: none; }
.header__nav .nav-cta:hover { background: var(--sand); border-color: var(--sand); color: var(--ink); }

.burger { display: none; width: 44px; height: 44px; position: relative; z-index: 120; }
.burger i { position: absolute; left: 10px; right: 10px; height: 2px; background: currentColor; transition: transform .5s var(--ease-out), top .5s var(--ease-out); }
.burger i:first-child { top: 17px; } .burger i:last-child { top: 25px; }
.burger[aria-expanded="true"] i:first-child { top: 21px; transform: rotate(45deg); }
.burger[aria-expanded="true"] i:last-child { top: 21px; transform: rotate(-45deg); }

.menu {
  position: fixed; inset: 0; z-index: 90; background: var(--ink);
  display: flex; flex-direction: column; justify-content: center; gap: .4rem;
  padding: 6rem var(--gutter) 3rem; visibility: hidden;
  clip-path: inset(0 0 100% 0); transition: clip-path .8s var(--ease), visibility 0s .8s;
}
.menu.open { visibility: visible; clip-path: inset(0); transition: clip-path .8s var(--ease), visibility 0s; }
.menu a { font-family: var(--font-display); font-size: clamp(3rem, 14vw, 5rem); line-height: 1.1; display: flex; align-items: baseline; gap: 1rem; }
.menu a span { font-family: var(--font-body); font-size: .8rem; letter-spacing: .15em; color: var(--sand); }
.menu p { margin-top: 2rem; color: var(--muted-dark); }

/* ---------- Botones ---------- */
.btn {
  position: relative; display: inline-flex; align-items: center; gap: 1rem; overflow: hidden; isolation: isolate;
  padding: 1.05rem 1.7rem; min-height: 52px; border-radius: var(--radius-sm);
  font-size: .86rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  transition: color .45s var(--ease-out), border-color .45s, transform .35s var(--ease-out);
}
.btn::before {
  content: ""; position: absolute; inset: 0; z-index: -1; transform: translateY(101%);
  transition: transform .55s var(--ease-out);
}
.btn:hover::before, .btn:focus-visible::before { transform: none; }
.btn b { font-weight: 400; font-size: 1.2rem; display: inline-block; transition: transform .45s var(--ease-out); }
.btn:hover b { transform: translateX(6px); }
.btn--sand { background: var(--sand); color: var(--ink); }
.btn--sand::before { background: var(--bone); }
.btn--ghost { border: 1px solid rgba(238, 241, 240, .5); color: var(--bone); }
.btn--ghost::before { background: var(--bone); }
.btn--ghost:hover { color: var(--ink); border-color: var(--bone); }
.btn--lg { padding: 1.2rem 2.2rem; }

/* ==========================================================
   HERO SLIDER
   ========================================================== */
.hero { position: relative; height: 100vh; height: 100svh; min-height: 640px; overflow: hidden; background: var(--ink); }
.hero__slides { position: absolute; inset: 0; }

.slide {
  position: absolute; inset: 0; visibility: hidden; z-index: 0;
  clip-path: inset(0 0 0 100%); transition: none;
  background: var(--ink); color: var(--bone);
}
.hero.dir-back .slide { clip-path: inset(0 100% 0 0); }
.slide[data-theme="slate"] { background: var(--slate-deep); }
.slide[data-theme="ink2"] { background: var(--ink-2); }
.slide[data-theme="sage"] { background: var(--sage); }
.slide.is-active { visibility: visible; z-index: 2; clip-path: inset(0); transition: clip-path 1.2s var(--ease); }
.slide.is-leaving { visibility: visible; z-index: 1; clip-path: inset(0); }
.slide.is-leaving .slide__inner { transform: translateX(-6%); opacity: 0; transition: transform 1.2s var(--ease), opacity 1s; }
.hero.dir-back .slide.is-leaving .slide__inner { transform: translateX(6%); }
.slide.is-leaving .slide__art { transform: translateX(-8%); transition: transform 1.2s var(--ease); }
.hero.dir-back .slide.is-leaving .slide__art { transform: translateX(8%); }

/* grano */
.slide::after {
  content: ""; position: absolute; inset: 0; z-index: 1; pointer-events: none; opacity: .09; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}

.slide__art { position: absolute; inset: 0; }
.art { position: absolute; right: -4%; top: 0; width: 74%; height: 100%; transform: scale(1.14); transform-origin: 70% 60%; }
.slide.is-active .art { transform: scale(1); transition: transform 8s linear; }
.art .par { transition: transform .9s var(--ease-out); }
.art use { transform-box: fill-box; opacity: 0; transform: translateY(70px); }
.slide.is-active .art use { opacity: 1; transform: none; transition: opacity 1.2s var(--ease-out), transform 1.5s var(--ease-out); }
.slide.is-active .art use:nth-of-type(1) { transition-delay: .35s; }
.slide.is-active .art use:nth-of-type(2) { transition-delay: .5s; }
.slide.is-active .art use:nth-of-type(3) { transition-delay: .65s; }

.f-line { fill: none; stroke: rgba(238, 241, 240, .34); stroke-width: 1.4; }
.f-mid { fill: rgba(89, 123, 139, .55); }
.f-sand { fill: var(--sand); }
.f-ink { fill: var(--ink); opacity: .85; }
.f-ink2 { fill: var(--ink-2); }
.slide[data-theme="slate"] .f-ink { fill: var(--ink-2); }
.s-line { stroke: rgba(238, 241, 240, .16); stroke-width: 1; fill: none; }
.route { fill: none; stroke: var(--sand); stroke-width: 3; stroke-linecap: round; stroke-dasharray: 1400; stroke-dashoffset: 1400; }
.slide.is-active .route { stroke-dashoffset: 0; transition: stroke-dashoffset 2.6s var(--ease) .5s; }
.dot { fill: var(--ink-2); stroke: var(--bone); stroke-width: 2; opacity: 0; }
.dot--sand { fill: var(--sand); stroke: var(--sand); }
.slide.is-active .dot { opacity: 1; transition: opacity .5s; }
.slide.is-active .dot:nth-of-type(1) { transition-delay: .6s; } .slide.is-active .dot:nth-of-type(2) { transition-delay: 1.2s; }
.slide.is-active .dot:nth-of-type(3) { transition-delay: 1.9s; } .slide.is-active .dot:nth-of-type(4) { transition-delay: 2.7s; }

.slide__inner {
  position: relative; z-index: 2; height: 100%; max-width: 1360px; margin-inline: auto;
  padding: 7.5rem var(--gutter) 8.5rem; display: flex; flex-direction: column; justify-content: center;
}

.eyebrow { display: flex; align-items: center; gap: .9rem; font-size: .78rem; font-weight: 700; letter-spacing: .2em; text-transform: uppercase; color: var(--sand); margin-bottom: clamp(1.2rem, 3vh, 2.2rem); }
.eyebrow i { width: 3rem; height: 1px; background: currentColor; }
.slide__title { font-family: var(--font-display); font-weight: 400; font-size: clamp(2.35rem, 8.4vw, 3.6rem); line-height: .98; letter-spacing: -.01em; }
.slide__title em { color: var(--sand); }
.line { display: block; overflow: hidden; padding: .04em 0 .12em; margin-bottom: -.08em; white-space: nowrap; }
.line > span { display: block; }
.slide__lead { margin-top: clamp(1.4rem, 3.5vh, 2.4rem); max-width: 34rem; font-size: clamp(.98rem, 1.2vw, 1.12rem); color: var(--muted-dark); }
.slide__cta { margin-top: clamp(1.6rem, 4vh, 2.6rem); display: flex; flex-wrap: wrap; gap: .9rem; }

/* texto: entrada por máscara */
.js .line > span { transform: translateY(112%); }
.js.ready .slide.is-active .line > span { transform: none; transition: transform 1.15s var(--ease-out); }
.js.ready .slide.is-active .line:nth-child(1) > span { transition-delay: .55s; }
.js.ready .slide.is-active .line:nth-child(2) > span { transition-delay: .67s; }
.js.ready .slide.is-active .line:nth-child(3) > span { transition-delay: .79s; }
.js .eyebrow, .js .slide__lead, .js .slide__cta { opacity: 0; transform: translateY(22px); }
.js.ready .slide.is-active .eyebrow, .js.ready .slide.is-active .slide__lead, .js.ready .slide.is-active .slide__cta { opacity: 1; transform: none; transition: opacity 1s var(--ease-out), transform 1s var(--ease-out); }
.js.ready .slide.is-active .eyebrow { transition-delay: .45s; }
.js.ready .slide.is-active .slide__lead { transition-delay: 1s; }
.js.ready .slide.is-active .slide__cta { transition-delay: 1.15s; }

/* controles */
.hero__ui {
  position: absolute; z-index: 5; left: 0; right: 0; bottom: 0;
  padding: 0 var(--gutter) clamp(1.4rem, 4vh, 2.4rem); max-width: 1360px; margin-inline: auto;
  display: flex; align-items: center; gap: 2rem;
}
.hero__count { display: flex; align-items: center; gap: .8rem; font-family: var(--font-display); font-size: 1.4rem; }
.hero__count b { font-weight: 400; font-size: 2.2rem; line-height: 1; }
.hero__count i { width: 2.4rem; height: 1px; background: var(--muted-dark); }
.hero__count span { color: var(--muted-dark); }
.hero__dots { flex: 1; display: flex; gap: .6rem; max-width: 28rem; }
.hero__dots button { position: relative; flex: 1; height: 28px; }
.hero__dots button::before { content: ""; position: absolute; left: 0; right: 0; top: 13px; height: 2px; background: rgba(238, 241, 240, .26); }
.hero__dots button i { position: absolute; left: 0; top: 13px; height: 2px; width: 100%; background: var(--sand); transform: scaleX(0); transform-origin: left; }
.hero__dots button.done i { transform: scaleX(1); }
.hero__dots button.run i { animation: fill var(--dur, 7000ms) linear forwards; }
.hero.paused .hero__dots button.run i { animation-play-state: paused; }
@keyframes fill { to { transform: scaleX(1); } }
.hero__arrows { margin-left: auto; display: flex; gap: .6rem; }
.hero__arrows button {
  width: 54px; height: 54px; border: 1px solid rgba(238, 241, 240, .4); border-radius: 50%;
  display: grid; place-items: center; transition: background .4s, color .4s, border-color .4s, transform .4s var(--ease-out);
}
.hero__arrows svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.hero__arrows button:hover { background: var(--bone); color: var(--ink); border-color: var(--bone); }
.hero__arrows #pause { display: none; }
.hero__scroll { position: absolute; z-index: 5; right: var(--gutter); top: 50%; display: none; flex-direction: column; align-items: center; gap: .8rem; writing-mode: vertical-rl; font-size: .7rem; letter-spacing: .25em; text-transform: uppercase; color: var(--muted-dark); }
.hero__scroll i { width: 1px; height: 64px; background: rgba(238, 241, 240, .3); position: relative; overflow: hidden; }
.hero__scroll i::after { content: ""; position: absolute; inset: 0; background: var(--sand); animation: drip 2s var(--ease) infinite; }
@keyframes drip { 0% { transform: translateY(-100%); } 60%, 100% { transform: translateY(100%); } }


/* ==========================================================
   NOSOTROS
   ========================================================== */
.about { background: var(--paper); color: var(--ink); padding-top: var(--space-xl); }
.about .kicker { margin-bottom: 2.5rem; }
.about__statement {
  font-family: var(--font-display); font-weight: 400; font-size: clamp(1.8rem, 4.1vw, 3.7rem); line-height: 1.16; letter-spacing: -.005em; max-width: 24ch;
  max-width: 1100px;
}
.about__statement .w { opacity: .16; transition: opacity .5s; }
.about__statement .w.lit { opacity: 1; }
.no-split .about__statement .w { opacity: 1; }

.about__grid { display: grid; grid-template-columns: 1fr; gap: 2.5rem; margin-top: clamp(3rem, 7vw, 6rem); align-items: end; }
.about__side { font-size: 1.1rem; max-width: 30rem; color: var(--muted-light); border-left: 2px solid var(--slate); padding-left: 1.4rem; }
.about__seal { overflow: hidden; border-radius: var(--radius-sm); }
.about__seal img { width: 100%; height: auto; aspect-ratio: 16 / 10; object-fit: cover; transform: scale(1.08); transition: transform 1.8s var(--ease-out); }
.about__seal.in img { transform: scale(1); }

.mv { margin-top: var(--space-xl); }
.mv__grid { display: grid; gap: 1.2rem; }
.mv__card { position: relative; padding: clamp(2rem, 5vw, 4rem); border-radius: var(--radius-sm); overflow: hidden; background: var(--ink); color: var(--bone); min-height: 22rem; display: flex; flex-direction: column; justify-content: space-between; gap: 3rem; }
.mv__card--b { background: var(--slate-deep); }
.mv__num { font-family: var(--font-display); font-style: italic; font-size: clamp(3.4rem, 9vw, 7.5rem); line-height: .9; color: var(--sand); }
.mv__card p { font-size: clamp(1.05rem, 1.5vw, 1.3rem); line-height: 1.55; max-width: 36rem; }
.mv__card::after { content: ""; position: absolute; right: -40px; top: -40px; width: 220px; height: 110px; opacity: .08; background: var(--bone); clip-path: polygon(0 100%, 50% 0, 100% 100%, 85% 100%, 50% 30%, 15% 100%); transform: scale(2) rotate(0deg); transform-origin: top right; }

.philosophy { padding-block: var(--space-xl) var(--space-lg); }
.philosophy .kicker { margin-bottom: 2rem; }
.philosophy__q p { font-family: var(--font-display); font-size: clamp(2rem, 5vw, 4.6rem); line-height: 1.1; max-width: 18em; }
.philosophy__q em { background: linear-gradient(var(--sand), var(--sand)) no-repeat 0 92% / 0% .16em; transition: background-size 1.4s var(--ease-out) .5s; }
.philosophy__q.in em { background-size: 100% .16em; }
.philosophy__q footer { margin-top: 2.5rem; max-width: 36rem; color: var(--muted-light); font-size: 1.05rem; margin-left: auto; }

.values { padding-bottom: var(--space-xl); display: grid; gap: 2.5rem; }
.values__head h3 { font-family: var(--font-display); font-weight: 400; font-size: clamp(2rem, 4vw, 3.4rem); line-height: 1.05; margin-top: 1.4rem; max-width: 12em; }
.values__head h3 em { color: var(--slate-deep); }
.values__list { border-bottom: 1px solid var(--line-light); }
.values__list li { border-top: 1px solid var(--line-light); transition: background .5s; }
.values__list button { width: 100%; display: grid; grid-template-columns: 3rem 1fr 2.2rem; align-items: center; text-align: left; gap: .6rem; padding: 1.5rem .4rem; }
.values__list i { font-style: normal; font-size: .8rem; font-weight: 700; letter-spacing: .12em; color: var(--slate-deep); }
.values__list strong { font-family: var(--font-display); font-weight: 400; font-size: clamp(1.7rem, 3.6vw, 2.9rem); line-height: 1.1; transition: transform .6s var(--ease-out), color .4s; }
.values__list b { position: relative; width: 1.4rem; height: 1.4rem; justify-self: end; }
.values__list b::before, .values__list b::after { content: ""; position: absolute; left: 0; right: 0; top: 50%; height: 1.5px; background: currentColor; transition: transform .5s var(--ease-out); }
.values__list b::after { transform: rotate(90deg); }
.values__list li.open b::after { transform: rotate(0); }
.values__list li > div { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .7s var(--ease-out); }
.values__list li.open > div { grid-template-rows: 1fr; }
.values__list li > div p { overflow: hidden; padding-left: 3.6rem; max-width: 40rem; color: var(--muted-light); font-size: 1.08rem; }
.values__list li.open > div p { padding-bottom: 1.8rem; }
.values__list li:hover { background: rgba(89, 123, 139, .1); }
.values__list li:hover strong, .values__list li.open strong { transform: translateX(.6rem); color: var(--slate-deep); }

/* ==========================================================
   SERVICIOS
   ========================================================== */
.services { background: var(--ink); color: var(--bone); padding-top: var(--space-xl); }
.services__grid { display: grid; gap: 3rem; align-items: start; }
.services__sticky h2 { margin-top: 1.6rem; font-family: var(--font-display); font-weight: 400; font-size: clamp(2.2rem, 4.8vw, 4.4rem); line-height: 1.02; }
.services__sticky h2 em { color: var(--sand); }
.services__intro { margin-top: 1.2rem; color: var(--muted-dark); max-width: 28rem; }
.stack { display: none; margin-top: 3rem; width: min(100%, 300px); }
.stack svg { width: 100%; overflow: visible; }
.stack .lv { fill: none; stroke: rgba(238, 241, 240, .22); stroke-width: 1.4; transition: fill .8s var(--ease-out), stroke .8s, transform .9s var(--ease-out); transform-box: fill-box; }
.stack[data-level="1"] .lv1, .stack[data-level="2"] .lv1, .stack[data-level="3"] .lv1, .stack[data-level="4"] .lv1 { fill: var(--sand); stroke: var(--sand); }
.stack[data-level="2"] .lv2, .stack[data-level="3"] .lv2, .stack[data-level="4"] .lv2 { fill: var(--slate); stroke: var(--slate); }
.stack[data-level="3"] .lv3, .stack[data-level="4"] .lv3 { fill: var(--slate-soft); stroke: var(--slate-soft); }
.stack[data-level="4"] .lv4 { fill: var(--bone); stroke: var(--bone); }
.stack__label { display: flex; align-items: baseline; gap: 1rem; margin-top: 1.4rem; }
.stack__label b { font-family: var(--font-display); font-weight: 400; font-size: 2.6rem; color: var(--sand); line-height: 1; }
.stack__label span { font-size: .78rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; color: var(--muted-dark); }

.svc { padding: 2.4rem 0 3rem; border-top: 1px solid var(--line-dark); opacity: .42; transition: opacity .7s; }
.svc.is-active { opacity: 1; }
.svc header { display: flex; align-items: baseline; gap: 1.2rem; margin-bottom: 1.6rem; }
.svc header span { font-size: .8rem; font-weight: 700; letter-spacing: .14em; color: var(--sand); }
.svc h3 { font-family: var(--font-display); font-weight: 400; font-size: clamp(1.9rem, 3.4vw, 3rem); line-height: 1.08; }
.svc li { position: relative; padding: .9rem 0 .9rem 2rem; border-top: 1px dashed var(--line-dark); color: var(--muted-dark); transition: color .4s, padding .5s var(--ease-out); }
.svc li::before { content: ""; position: absolute; left: 0; top: 1.45rem; width: 11px; height: 6px; background: var(--slate); clip-path: polygon(0 100%, 50% 0, 100% 100%); transition: background .4s, transform .5s var(--ease-out); }
.svc li:hover { color: var(--bone); padding-left: 2.6rem; }
.svc li:hover::before { background: var(--sand); transform: translateY(-2px); }

.why { padding-block: var(--space-xl); }
.why__head h3 { margin-top: 1.6rem; font-family: var(--font-display); font-weight: 400; font-size: clamp(2rem, 4.4vw, 4rem); line-height: 1.08; max-width: 18em; }
.why__head h3 em { color: var(--sand); }
.why__list { margin-top: clamp(3rem, 7vw, 5.5rem); counter-reset: w; }
.why__list li { position: relative; display: grid; grid-template-columns: 4rem 1fr; gap: 1rem; padding: 2rem 0; border-top: 1px solid var(--line-dark); }
.why__list li > span { font-family: var(--font-display); font-style: italic; font-size: 2.6rem; line-height: 1; color: var(--slate-soft); }
.why__list h4 { font-family: var(--font-display); font-weight: 400; font-size: clamp(1.6rem, 2.6vw, 2.3rem); line-height: 1.1; }
.why__list p { margin-top: .6rem; color: var(--muted-dark); max-width: 34rem; }
.why__list li:last-child { border-bottom: 1px solid var(--line-dark); }

/* ==========================================================
   CONTACTO
   ========================================================== */
.contact { background: var(--slate-deep); color: var(--bone); padding-block: var(--space-xl); position: relative; overflow: hidden; }
.contact::before { content: ""; position: absolute; right: -8%; bottom: -12%; width: 60vw; height: 30vw; background: var(--ink); opacity: .22; clip-path: polygon(0 100%, 50% 0, 100% 100%); pointer-events: none; }
.contact__grid { position: relative; display: grid; gap: 3.5rem; }
.contact .kicker { color: var(--bone); opacity: .85; }
.contact__title { margin-top: 1.6rem; font-family: var(--font-display); font-weight: 400; font-size: clamp(2.6rem, 8vw, 6.6rem); line-height: .98; }
.contact__title em { color: var(--sand); }
.contact__title .line > span { transform: translateY(112%); transition: transform 1.2s var(--ease-out); }
.contact__title.in .line > span { transform: none; }
.contact__title .line:nth-child(2) > span { transition-delay: .12s; }
html:not(.js) .contact__title .line > span { transform: none; }
.contact__lead { margin-top: 1.8rem; max-width: 30rem; color: rgba(238, 241, 240, .86); font-size: 1.1rem; }
.contact__data { margin-top: 2.6rem; display: grid; gap: 1.4rem; }
.contact__data div { display: grid; gap: .2rem; padding-top: 1.2rem; border-top: 1px solid rgba(238, 241, 240, .25); }
.contact__data dt { font-size: .72rem; font-weight: 700; letter-spacing: .2em; text-transform: uppercase; color: var(--sand); }
.contact__data dd { font-size: 1.2rem; }
.contact__data a { background: linear-gradient(currentColor, currentColor) no-repeat 0 100% / 0 1px; transition: background-size .5s var(--ease-out); }
.contact__data a:hover { background-size: 100% 1px; }

.form { display: grid; gap: 1.6rem; align-content: start; background: rgba(13, 26, 34, .32); padding: clamp(1.6rem, 4vw, 3rem); border-radius: var(--radius-sm); }
.field { position: relative; padding-top: 1.1rem; }
.field input, .field textarea {
  width: 100%; font: inherit; font-size: 1.05rem; color: var(--bone); background: transparent; border: 0; border-bottom: 1px solid rgba(238, 241, 240, .45);
  padding: .7rem 0; border-radius: 0; outline: none; resize: vertical; transition: border-color .4s;
}
.field label { position: absolute; left: 0; top: 1.9rem; pointer-events: none; color: rgba(238, 241, 240, .82); transition: transform .4s var(--ease-out), color .4s, font-size .4s; transform-origin: left; }
.field input:focus + label, .field input:not(:placeholder-shown) + label,
.field textarea:focus + label, .field textarea:not(:placeholder-shown) + label { transform: translateY(-1.5rem); font-size: .78rem; letter-spacing: .08em; color: var(--sand); }
.field input:focus, .field textarea:focus { border-color: var(--sand); box-shadow: 0 1px 0 0 var(--sand); }
.field small { display: none; margin-top: .4rem; color: var(--error); font-size: .85rem; }
.field.invalid small { display: block; }
.field.invalid input, .field.invalid textarea { border-color: var(--error); }
.form .btn { justify-self: start; margin-top: .6rem; }
.form__ok { min-height: 1.4rem; color: var(--sand); font-weight: 600; }

/* ---------- Footer ---------- */
.footer { background: var(--ink); color: var(--bone); padding-top: 4rem; overflow: hidden; }
.footer__top { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 2rem; }
.footer__top img { height: 44px; width: auto; filter: brightness(0) invert(1); }
.footer nav { display: flex; gap: 2rem; flex-wrap: wrap; }
.footer nav a { font-size: .85rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--muted-dark); transition: color .3s; }
.footer nav a:hover { color: var(--sand); }
.totop { width: 52px; height: 52px; border: 1px solid var(--line-dark); border-radius: 50%; display: grid; place-items: center; font-size: 1.3rem; transition: background .4s, color .4s; }
.totop:hover { background: var(--sand); color: var(--ink); }
.footer__word {
  font-weight: 800; font-size: 27vw; line-height: .78; letter-spacing: .02em; text-align: center; margin-top: 3rem; white-space: nowrap;
  color: transparent; -webkit-text-stroke: 1px rgba(143, 169, 182, .45); user-select: none;
  background: linear-gradient(var(--slate), var(--slate)) no-repeat 0 100% / 100% 0%; -webkit-background-clip: text; background-clip: text;
  transition: background-size 1s var(--ease-out); transform: translateY(8%);
}
.footer__word:hover { background-size: 100% 100%; }
.footer__bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .5rem; padding-block: 1.4rem 1.8rem; font-size: .85rem; color: var(--muted-dark); border-top: 1px solid var(--line-dark); position: relative; background: var(--ink); }

/* ==========================================================
   BREAKPOINTS
   ========================================================== */
@media (max-width: 760px) {
  .header__nav { display: none; }
  .burger { display: block; }
  .hero__arrows button { width: 46px; height: 46px; }
  .hero__ui { gap: 1rem; }
  .hero__count b { font-size: 1.7rem; }
  .hero__count i { width: 1.2rem; }
  .art { width: 115%; right: -8%; height: 50%; top: 4rem; opacity: .85; }
  .slide__title { font-size: min(10.4vw, 3.4rem); }
  .slide__inner { padding-top: 6rem; padding-bottom: 7.5rem; justify-content: flex-end; }
  .slide__lead { display: none; }
  .btn { padding: .95rem 1.3rem; }
  .why__list li { grid-template-columns: 3rem 1fr; }
  .values__list li > div p { padding-left: 0; }
}
@media (min-width: 761px) {
  .hero__arrows #pause { display: grid; }
}
@media (min-width: 761px) and (max-width: 1019px) {
  .slide__title { font-size: clamp(3rem, 7vw, 5rem); }
  .art { width: 90%; right: -20%; opacity: .75; }
}
@media (min-width: 1020px) {
  .slide__title { font-size: clamp(4.2rem, 7.2vw, 8.2rem); }
  .hero__scroll { display: flex; }
  .about__grid { grid-template-columns: 5fr 6fr; gap: 5rem; }
  .mv__grid { grid-template-columns: 1fr 1fr; gap: 1.6rem; }
  .mv__card--b { margin-top: 6rem; }
  .values { grid-template-columns: 4fr 7fr; gap: 5rem; align-items: start; }
  .values__head { position: sticky; top: 8rem; }
  .services__grid { grid-template-columns: 5fr 7fr; gap: 6rem; }
  .services__sticky { position: sticky; top: 6.5rem; }
  .stack { display: block; }
  .svc { padding-block: 3rem 5rem; min-height: 52vh; }
  .why__list li:nth-child(even) { margin-left: 14%; }
  .why__list li:nth-child(odd) { margin-right: 14%; }
  .contact__grid { grid-template-columns: 6fr 5fr; gap: 6rem; align-items: start; }
}
@media (min-width: 1020px) and (max-height: 780px) {
  .stack { width: 200px; margin-top: 1.6rem; }
}

/* ==========================================================
   MOVIMIENTO REDUCIDO
   ========================================================== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; transition-delay: 0s !important; }
  .js [data-reveal], .js .line > span, .js .eyebrow, .js .slide__lead, .js .slide__cta { opacity: 1; transform: none; }
  .curtain { display: none; }
  .art use { opacity: 1; transform: none; }
  .route { stroke-dashoffset: 0; } .dot { opacity: 1; }
  .about__statement .w { opacity: 1; }
}