/* ==========================================================================
   EMPRESAR · Propuesta-manifiesto · Design System
   ========================================================================== */

/* ---------- Fuentes self-hosteadas (Fontshare: Teko + Hind) ---------- */
@font-face { font-family: "Teko"; font-weight: 500; font-style: normal; font-display: swap; src: url("assets/fonts/teko-500.woff2") format("woff2"); }
@font-face { font-family: "Teko"; font-weight: 600; font-style: normal; font-display: swap; src: url("assets/fonts/teko-600.woff2") format("woff2"); }
@font-face { font-family: "Teko"; font-weight: 700; font-style: normal; font-display: swap; src: url("assets/fonts/teko-700.woff2") format("woff2"); }
@font-face { font-family: "Hind"; font-weight: 400; font-style: normal; font-display: swap; src: url("assets/fonts/hind-400.woff2") format("woff2"); }
@font-face { font-family: "Hind"; font-weight: 500; font-style: normal; font-display: swap; src: url("assets/fonts/hind-500.woff2") format("woff2"); }
@font-face { font-family: "Hind"; font-weight: 600; font-style: normal; font-display: swap; src: url("assets/fonts/hind-600.woff2") format("woff2"); }
@font-face { font-family: "Hind"; font-weight: 700; font-style: normal; font-display: swap; src: url("assets/fonts/hind-700.woff2") format("woff2"); }

:root {
  --color-bg: #0E1311;
  --color-bg-alt: #161C1A;
  --color-text: #EDEFEC;
  --color-text-dim: #9BA5A0;
  --color-acento: #2FBF71;
  --color-acento-hover: #27A862;
  --color-linea: #26302C;

  --font-display: "Teko", sans-serif;
  --font-body: "Hind", sans-serif;

  --space-2xs: 0.5rem;  --space-xs: 0.75rem;  --space-s: 1.25rem;
  --space-m: 2rem;      --space-l: 3.5rem;    --space-xl: 6rem;
  --space-2xl: 10rem;

  --t-fast: 0.24s;
  --ease-firma: cubic-bezier(0.16, 0, 0.1, 1);

  --maxw: 1440px;
  --pad-x: clamp(1.5rem, 5vw, 6rem);
  --radius-btn: 8px;
  --radius-card: 12px;
  --radius-lg: 20px;
}

/* ---------- reset ligero ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button, input { font: inherit; color: inherit; }
::selection { background: var(--color-acento); color: var(--color-bg); }

/* ScrollSmoother necesita esto */
#smooth-wrapper { overflow: hidden; }

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

/* ---------- tipografía base ---------- */
.h-hero   { font-family: var(--font-display); font-weight: 600; font-size: clamp(1.75rem, 4.2vw, 3.6rem); line-height: 1; letter-spacing: 0.005em; }
.h-seccion{ font-family: var(--font-display); font-weight: 600; font-size: clamp(2.2rem, 5.5vw, 4.4rem); line-height: 0.95; letter-spacing: 0.005em; }
.h-sub    { font-family: var(--font-display); font-weight: 600; font-size: clamp(1.5rem, 3vw, 2.2rem); line-height: 1; letter-spacing: 0.008em; }
.cifra    { font-family: var(--font-display); font-weight: 600; font-size: clamp(3rem, 8vw, 5.75rem); line-height: 0.9; color: var(--color-acento); font-variant-numeric: tabular-nums; letter-spacing: 0.005em; }
.cuerpo   { font-family: var(--font-body); font-weight: 400; font-size: clamp(1rem, 1.15vw, 1.12rem); line-height: 1.62; color: var(--color-text-dim); }
.label    { font-family: var(--font-body); font-weight: 500; font-size: 0.8rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--color-text-dim); }
.label--acento { color: var(--color-acento); }

.section { padding-block: var(--space-xl); }

/* ==========================================================================
   BOTONES / CTA
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  font-family: var(--font-body);
  font-weight: 700;
  cursor: pointer;
  border: none;
  border-radius: var(--radius-btn);
  transition: background-color var(--t-fast) var(--ease-firma),
              transform var(--t-fast) var(--ease-firma);
}
.btn-wa {
  background-color: var(--color-acento);
  color: #06120C;
  padding: 0.9em 1.5em;
  font-size: 1rem;
}
.btn-wa .wa-ico { width: 1.25em; height: 1.25em; }
.btn-wa--sm { padding: 0.55em 1em; font-size: 0.85rem; border-radius: var(--radius-btn); }
.btn-wa--big { padding: 1.1em 2.2em; font-size: clamp(1.05rem, 1.6vw, 1.35rem); border-radius: var(--radius-lg); }
.btn:active { transform: scale(0.98); }
.btn:focus-visible { outline: 2px solid var(--color-acento); outline-offset: 3px; }
@media (hover: hover) and (pointer: fine) {
  .btn-wa:hover { background-color: var(--color-acento-hover); }
}

/* ==========================================================================
   PRELOADER
   ========================================================================== */
#preloader {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: var(--color-bg);
  display: grid;
  place-items: center;
}
.pre-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-s);
}
.pre-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.75rem, 5vw, 3rem);
  letter-spacing: 0.02em;
}
.pre-count {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--color-acento);
  font-variant-numeric: tabular-nums;
}
.pre-count::after { content: "%"; }
.pre-curtain {
  position: fixed;
  inset: 0;
  z-index: 201;
  background: var(--color-acento);
  transform: translateY(100%);
  pointer-events: none;
}

/* ==========================================================================
   HEADER
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding-block: var(--space-s);
  transition: background-color 0.4s var(--ease-firma), border-color 0.4s var(--ease-firma);
  border-bottom: 1px solid transparent;
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.site-header.is-scrolled {
  background: color-mix(in srgb, var(--color-bg) 82%, transparent);
  backdrop-filter: blur(12px);
  border-bottom-color: var(--color-linea);
}
.wordmark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
}

/* ==========================================================================
   1 · HERO
   ========================================================================== */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  padding-block: clamp(6rem, 14vh, 10rem) var(--space-xl);
  overflow: hidden;
}
.hero-media {
  position: absolute;
  inset: -8% 0;
  width: 100%;
  height: 116%;
  object-fit: cover;
  object-position: 50% 55%;
  background: var(--color-bg-alt);
  z-index: 0;
}
/* placeholder visible marcado (se reemplaza por foto real tratada) */
.foto-placeholder {
  background-color: var(--color-bg-alt);
  background-image:
    linear-gradient(135deg, rgba(47,191,113,0.10) 0%, rgba(14,19,17,0.65) 60%),
    repeating-linear-gradient(45deg, transparent 0 22px, rgba(155,165,160,0.05) 22px 23px);
}
.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(90deg, rgba(14,19,17,0.85) 0%, rgba(14,19,17,0.5) 38%, rgba(14,19,17,0.08) 70%, transparent 100%),
    linear-gradient(180deg, rgba(14,19,17,0.5) 0%, rgba(14,19,17,0.15) 30%, rgba(14,19,17,0.92) 100%),
    radial-gradient(120% 90% at 15% 100%, rgba(47,191,113,0.16), transparent 55%);
}
.hero-inner { position: relative; z-index: 2; width: 100%; }
.hero-title { margin-bottom: var(--space-l); }
.hero-title .line { display: block; white-space: nowrap; }
.hero-title em { color: var(--color-acento); font-style: normal; }
/* máscara por líneas para SplitText */
.hero-title .line-mask { overflow: hidden; display: block; }

.hero-foot {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-m);
}
.hero-support { max-width: 40ch; color: var(--color-text); }
@media (min-width: 820px) {
  .hero-foot {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
    gap: var(--space-xl);
  }
  .hero-support { max-width: 34ch; margin-bottom: 0.35rem; }
  .hero-cta { flex-shrink: 0; }
}

/* ==========================================================================
   2 · TESIS
   ========================================================================== */
.tesis { padding-block: var(--space-xl); }
.tesis-head { max-width: 24ch; margin-bottom: var(--space-xl); }
.tesis-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-l);
  align-items: center;
}
.tesis-col {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-linea);
  border-radius: var(--radius-lg);
  padding: clamp(1.75rem, 3vw, 2.75rem);
}
.tesis-tag { display: inline-block; margin-bottom: var(--space-s); }
.tesis-col h3 { margin-bottom: var(--space-s); }
.tesis-puente {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-xs);
  padding-block: var(--space-s);
}
.puente-mark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  color: var(--color-acento);
  letter-spacing: 0.01em;
}
.puente-line {
  width: 1px; height: 3rem;
  background: linear-gradient(var(--color-acento), transparent);
}
.puente-sub { max-width: 22ch; }

@media (min-width: 900px) {
  .tesis-grid {
    grid-template-columns: 1fr auto 1fr;
    gap: clamp(2rem, 4vw, 4rem);
    align-items: stretch;
  }
  .tesis-col--a { margin-top: -2.5rem; }   /* asimetría del enfrentamiento */
  .tesis-col--b { margin-bottom: -2.5rem; }
  .tesis-puente { justify-content: center; }
  .puente-line { height: 5rem; }
}

/* ==========================================================================
   3 · POSICIONAMIENTO
   ========================================================================== */
.posic-head { max-width: 20ch; margin-bottom: var(--space-m); }
.posic-intro { max-width: 52ch; margin-bottom: var(--space-l); }
.contraste {
  display: grid;
  grid-template-columns: 1fr;
  border: 1px solid var(--color-linea);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.contraste-col { padding: clamp(1.75rem, 3vw, 2.75rem); }
.contraste-col--otros { background: var(--color-bg); }
.contraste-col--empresar { background: var(--color-bg-alt); }
.contraste-col .label { display: block; margin-bottom: var(--space-m); }
.contraste-col ul { display: flex; flex-direction: column; gap: var(--space-s); }
.contraste-col li {
  font-family: var(--font-body);
  line-height: 1.5;
  padding-left: 1.5rem;
  position: relative;
  color: var(--color-text-dim);
}
.contraste-col li::before {
  content: "";
  position: absolute; left: 0; top: 0.55em;
  width: 6px; height: 6px; border-radius: 2px;
}
.contraste-col--otros li::before { background: var(--color-text-dim); opacity: 0.5; }
.contraste-col--empresar li { color: var(--color-text); }
.contraste-col--empresar li::before { background: var(--color-acento); }

@media (min-width: 820px) {
  .contraste { grid-template-columns: 1fr 1.1fr; }
  .contraste-col--otros { border-right: 1px solid var(--color-linea); }
}

/* ==========================================================================
   4 · PILARES (sticky stacking)
   ========================================================================== */
.pilares-grid { display: grid; grid-template-columns: 1fr; gap: var(--space-l); }
.pilares-aside .sec-marker { margin-bottom: var(--space-m); }
.pilares-head { max-width: 16ch; margin-bottom: var(--space-s); }
.pilares-lead { max-width: 36ch; }

.pilares-list { display: flex; flex-direction: column; }
.pilar {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(1.25rem, 3vw, 2.5rem);
  align-items: baseline;
  padding-block: clamp(1.75rem, 3.5vw, 2.75rem);
  border-top: 1px solid var(--color-linea);
}
.pilar:last-child { border-bottom: 1px solid var(--color-linea); }
.pilar-idx {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.4rem, 3vw, 2rem);
  line-height: 1;
  color: var(--color-text-dim);
  font-variant-numeric: tabular-nums;
  transition: color 0.4s var(--ease-firma);
}
.pilar.is-active .pilar-idx { color: var(--color-acento); }
.pilar-body h3 { margin-bottom: var(--space-xs); }
.pilar-body .cuerpo { max-width: 54ch; }

@media (min-width: 900px) {
  .pilares-grid {
    grid-template-columns: 5fr 7fr;
    gap: clamp(3rem, 6vw, 7rem);
    align-items: start;
  }
  /* el "sticky" del aside lo maneja ScrollTrigger.pin (compatible con ScrollSmoother) */
}

/* ==========================================================================
   5 · SIMULADOR (pieza firma — más aire)
   ========================================================================== */
.simulador { padding-block: var(--space-2xl); }
.sim-head { max-width: 46rem; margin-bottom: var(--space-l); }
.sim-head .h-seccion { margin-block: var(--space-xs) var(--space-s); }
.sim-sub { max-width: 44ch; }

.sim-box {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-l);
  background: var(--color-bg-alt);
  border: 1px solid var(--color-linea);
  border-radius: var(--radius-lg);
  padding: clamp(1.75rem, 4vw, 3.5rem);
}
.sim-form { display: flex; flex-direction: column; gap: var(--space-l); }
.sim-field { display: flex; flex-direction: column; gap: var(--space-xs); }
.sim-field > .label { display: flex; align-items: baseline; gap: 0.5em; }
.sim-unit { font-size: 0.65rem; color: var(--color-acento); letter-spacing: 0.1em; }
.sim-input-wrap {
  display: flex;
  align-items: center;
  gap: 0.4em;
  background: var(--color-bg);
  border: 1px solid var(--color-linea);
  border-radius: var(--radius-card);
  padding: 0.7em 1em;
  transition: border-color var(--t-fast) var(--ease-firma);
}
.sim-input-wrap:focus-within { border-color: var(--color-acento); }
.sim-prefix {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--color-text-dim);
  font-size: 1.4rem;
}
.sim-input-wrap input {
  flex: 1;
  min-width: 0;
  background: transparent;
  border: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  color: var(--color-text);
  font-variant-numeric: tabular-nums;
}
.sim-input-wrap input:focus { outline: none; }
.sim-input-wrap input:focus-visible { outline: none; }
.sim-hint { font-size: 0.85rem; color: var(--color-text-dim); }

/* range */
input[type="range"] {
  -webkit-appearance: none; appearance: none;
  width: 100%; height: 4px;
  background: var(--color-linea);
  border-radius: 2px;
  margin-top: var(--space-2xs);
  cursor: pointer;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 20px; height: 20px; border-radius: 50%;
  background: var(--color-acento);
  border: 3px solid var(--color-bg);
  transition: transform var(--t-fast) var(--ease-firma);
}
input[type="range"]::-moz-range-thumb {
  width: 20px; height: 20px; border-radius: 50%;
  background: var(--color-acento);
  border: 3px solid var(--color-bg);
  cursor: pointer;
}
input[type="range"]:active::-webkit-slider-thumb { transform: scale(1.15); }
input[type="range"]:focus-visible { outline: 2px solid var(--color-acento); outline-offset: 4px; }

/* result */
.sim-result {
  display: flex;
  flex-direction: column;
  gap: var(--space-m);
  justify-content: center;
  padding: clamp(1.5rem, 3vw, 2.5rem);
  background: var(--color-bg);
  border: 1px solid var(--color-linea);
  border-radius: var(--radius-card);
}
.sim-result-main .label { display: block; margin-bottom: var(--space-2xs); }
.sim-meses .sim-meses-u { font-size: 0.35em; color: var(--color-text-dim); font-weight: 600; }
.sim-anios { margin-top: var(--space-2xs); color: var(--color-text); font-weight: 500; }
.sim-bar-track {
  width: 100%; height: 10px;
  background: var(--color-linea);
  border-radius: 6px;
  overflow: hidden;
}
.sim-bar-fill {
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, var(--color-acento-hover), var(--color-acento));
  border-radius: 6px;
  transform: scaleX(0);
  transform-origin: left center;
}
.sim-foot { font-size: 0.8rem; }
.sim-tc { color: var(--color-text-dim); }

@media (min-width: 860px) {
  .sim-box { grid-template-columns: 1fr 1fr; align-items: stretch; }
}

/* ==========================================================================
   6 · MODELO DE NEGOCIO
   ========================================================================== */
.modelo-head { max-width: 22ch; margin-bottom: var(--space-l); }
.modelo-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-m);
}
.modelo-hero-card {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-linea);
  border-radius: var(--radius-lg);
  padding: clamp(1.75rem, 4vw, 3rem);
  display: flex;
  flex-direction: column;
  gap: var(--space-s);
}
.modelo-hero-card .cifra { margin-block: var(--space-2xs); }
.modelo-hero-card .cuerpo { max-width: 40ch; }
.modelo-sec {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--color-linea);
  border: 1px solid var(--color-linea);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.modelo-item {
  background: var(--color-bg);
  padding: clamp(1.25rem, 3vw, 2rem);
  display: flex;
  flex-direction: column;
  gap: var(--space-2xs);
}
.modelo-item h3 { font-size: clamp(1.1rem, 2vw, 1.4rem); }
.modelo-precio {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--color-acento);
  font-size: 1.15rem;
  font-variant-numeric: tabular-nums;
}

@media (min-width: 820px) {
  .modelo-grid { grid-template-columns: 1fr 1.15fr; align-items: start; }
  .modelo-sec { grid-template-columns: 1fr 1fr; }
}

/* ==========================================================================
   7 · ACUC
   ========================================================================== */
.acuc-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-l);
}
.acuc-text .h-seccion { margin-block: var(--space-xs) var(--space-s); max-width: 16ch; }
.acuc-text .cuerpo { max-width: 46ch; }
.acuc-list { display: flex; flex-direction: column; gap: 1px; background: var(--color-linea);
  border: 1px solid var(--color-linea); border-radius: var(--radius-lg); overflow: hidden; }
.acuc-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-m);
  align-items: center;
  background: var(--color-bg-alt);
  padding: clamp(1.1rem, 2.5vw, 1.6rem) clamp(1.25rem, 3vw, 2rem);
}
.acuc-list .cuerpo { color: var(--color-text); }

@media (min-width: 900px) {
  .acuc-inner { grid-template-columns: 0.9fr 1.1fr; gap: clamp(3rem, 6vw, 6rem); align-items: center; }
}

/* ==========================================================================
   8 · CRONOGRAMA
   ========================================================================== */
.crono-head { max-width: 16ch; margin-bottom: var(--space-xl); }

/* timeline sin cards: spine + nodos */
.crono { position: relative; }
.crono-step { position: relative; padding-left: 2.75rem; padding-bottom: var(--space-l); }
.crono-step:last-child { padding-bottom: 0; }
.crono-node {
  position: absolute; left: 0; top: 0.35rem;
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--color-bg);
  border: 2px solid var(--color-acento);
  z-index: 1;
}
.crono-step:not(:last-child)::before {
  content: "";
  position: absolute; left: 6px; top: 0.35rem; bottom: 0;
  width: 1px; background: var(--color-linea);
}
.crono-rango {
  display: block;
  font-family: var(--font-body);
  font-weight: 500; font-size: 0.8rem;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--color-acento);
  margin-bottom: var(--space-xs);
}
.crono-step h3 { margin-bottom: var(--space-xs); }
.crono-step .cuerpo { max-width: 38ch; }

@media (min-width: 860px) {
  .crono { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-l); }
  .crono::before {
    content: "";
    position: absolute; top: 6px; left: 0; right: 0;
    height: 1px; background: var(--color-linea);
  }
  .crono-step { padding-left: 0; padding-top: 2.75rem; padding-bottom: 0; padding-right: var(--space-m); }
  .crono-node { top: 0; left: 0; }
  .crono-step:not(:last-child)::before { content: none; }
}

/* ==========================================================================
   9 · CTA FINAL
   ========================================================================== */
.cta-final {
  min-height: 90svh;
  display: flex;
  align-items: center;
  padding-block: var(--space-2xl);
  background:
    radial-gradient(80% 60% at 50% 100%, rgba(47,191,113,0.12), transparent 60%);
}
.cta-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-m);
}
.cta-title { max-width: 18ch; }
.cta-sub { max-width: 46ch; }
.cta-final .btn-wa--big { margin-top: var(--space-s); }

/* ==========================================================================
   10 · FOOTER
   ========================================================================== */
.site-footer {
  border-top: 1px solid var(--color-linea);
  padding-block: var(--space-l);
}
.footer-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  align-items: flex-start;
}
.footer-mark { font-size: 1.4rem; }
.footer-tag { color: var(--color-text-dim); }
.footer-credit {
  margin-top: var(--space-s);
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--color-text-dim);
}
.footer-credit a { color: var(--color-text); border-bottom: 1px solid var(--color-linea); }
.footer-credit a:focus-visible { outline: 2px solid var(--color-acento); outline-offset: 3px; }
@media (hover: hover) and (pointer: fine) {
  .footer-credit a:hover { border-bottom-color: var(--color-acento); }
}

/* ==========================================================================
   ESTADOS DE ANIMACIÓN (pre-reveal). Solo si JS activo + motion permitido.
   ========================================================================== */
.js-anim .reveal,
.js-anim .reveal-clip,
.js-anim [data-hero],
.js-anim [data-cta],
.js-anim [data-tramo],
.js-anim .modelo-hero-card,
.js-anim .modelo-item,
.js-anim .tesis-col,
.js-anim .tesis-puente { will-change: transform, opacity; }

.js-anim .reveal { opacity: 0; transform: translateY(28px); }
.js-anim .reveal-clip { clip-path: inset(0 100% 0 0); }
.js-anim [data-hero] { opacity: 0; }
.js-anim [data-cta] { opacity: 0; transform: translateY(28px); }
.js-anim [data-tramo] { opacity: 0; transform: translateY(28px); }
.js-anim .tesis-col--a { opacity: 0; transform: translateY(-24px); }
.js-anim .tesis-col--b { opacity: 0; transform: translateY(24px); }
.js-anim .tesis-puente { opacity: 0; }
.js-anim .modelo-hero-card,
.js-anim .modelo-item { opacity: 0; transform: translateY(28px); }
.js-anim .sim-box { opacity: 0; transform: scale(0.985); }
.js-anim .pilar { opacity: 0; transform: translateY(28px); }

/* body bloqueado mientras corre el preloader */
body.is-loading { overflow: hidden; height: 100svh; }

/* ==========================================================================
   REDUCED MOTION / SIN JS: todo visible
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; }
  #preloader { display: none; }
  body.is-loading { overflow: visible; height: auto; }
}