/* ══════════════════════════════════════════════════
   TOKENS
   ══════════════════════════════════════════════════ */
:root {
  --ink: #0B0B0B;          /* canvas */
  --ink-2: #141414;        /* panel */
  --paper: #F4F3EE;        /* text on dark */
  --paper-dim: #A7A6A0;    /* secondary text */
  --hairline: #262626;
  --verde: #1E8A5B;        /* acento institucional 5050 */
  --verde-tinta: #0F3B28;
  --verde-text: #22A06A;   /* variante AA-safe del verde para texto pequeño sobre fondos oscuros */
  --display: 'Archivo', sans-serif;
  --mono: 'IBM Plex Mono', monospace;
  --gutter: clamp(20px, 5vw, 72px);
  --measure: 62ch;
}

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

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

body {
  font-family: var(--display);
  font-weight: 400;
  background: var(--ink);
  color: var(--paper);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--verde); color: var(--paper); }

a { color: inherit; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible {
  outline: 2px solid var(--verde);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -60px;
  z-index: 200;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 12px 20px;
  transition: top 0.2s;
}
.skip-link:focus {
  top: 12px;
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* utilidades tipográficas */
.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--paper-dim);
}
.eyebrow .bar { color: var(--verde); }

/* ══════════════════════════════════════════════════
   HEADER
   ══════════════════════════════════════════════════ */
header {
  position: fixed;
  inset: 0 0 auto 0;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding: 0 var(--gutter);
  background: rgba(11, 11, 11, 0.88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--hairline);
  z-index: 100;
}

.wordmark {
  font-weight: 900;
  font-stretch: 125%;
  font-size: 19px;
  letter-spacing: 0.02em;
  text-decoration: none;
}
.wordmark .bar { color: var(--verde); font-weight: 400; padding: 0 2px; }
.wordmark img { display: block; height: 26px; width: auto; }

header nav { margin-left: auto; }
.nav-links { display: flex; gap: 34px; list-style: none; }
.nav-links a {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--paper-dim);
  transition: color 0.25s;
}
.nav-links a:hover { color: var(--paper); }

/* Desplegable de Casos — sin JS: hover en desktop, :focus-within accesible por teclado */
.nav-dropdown { position: relative; }
.nav-dropdown > a::after {
  content: "▾";
  display: inline-block;
  margin-left: 5px;
  font-size: 9px;
  transition: transform 0.25s;
}
.nav-dropdown:hover > a::after,
.nav-dropdown:focus-within > a::after { transform: rotate(180deg); }

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  margin-top: 22px;
  min-width: 220px;
  background: var(--ink-2);
  border: 1px solid var(--hairline);
  list-style: none;
  padding: 6px 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s, transform 0.2s;
  z-index: 110;
}
.nav-dropdown:hover .dropdown-menu,
.nav-dropdown:focus-within .dropdown-menu {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}
.dropdown-menu a {
  display: block;
  padding: 10px 20px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--paper-dim);
  white-space: nowrap;
  transition: background 0.2s, color 0.2s;
}
.dropdown-menu a:hover,
.dropdown-menu a:focus-visible { background: var(--ink); color: var(--paper); }
.dropdown-menu a[aria-current="page"] { color: var(--verde-text); }
.dropdown-menu .dropdown-divider {
  border-top: 1px solid var(--hairline);
  margin-top: 6px;
  padding-top: 6px;
}
.dropdown-menu .dropdown-divider a { color: var(--paper); font-weight: 500; }
@media (max-width: 900px) {
  .dropdown-menu { display: none; }
}

.cta-header {
  margin-left: 34px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink);
  background: var(--paper);
  border: none;
  padding: 10px 20px;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.25s, color 0.25s;
}
.cta-header:hover { background: var(--verde); color: var(--ink); }

/* ══════════════════════════════════════════════════
   HERO — la tesis, homologada a LinkedIn
   ══════════════════════════════════════════════════ */
.hero {
  min-height: 92vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 140px var(--gutter) 0;
  position: relative;
}

.hero .eyebrow { margin-bottom: 28px; }

.hero h1 {
  font-weight: 900;
  font-stretch: 125%;
  font-size: clamp(38px, 6.2vw, 96px);
  line-height: 1.02;
  letter-spacing: -0.015em;
  text-transform: uppercase;
  max-width: 18ch;
}
.hero h1 em {
  font-style: normal;
  color: var(--verde);
}

.hero-baseline {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: end;
  border-top: 1px solid var(--hairline);
  margin-top: clamp(36px, 6vh, 70px);
  padding: 26px 0 34px;
}
.hero-baseline p {
  font-size: clamp(16px, 1.4vw, 20px);
  color: var(--paper-dim);
  max-width: 44ch;
}
.hero-baseline p strong { color: var(--paper); font-weight: 600; }
.hero-actions { display: flex; gap: 14px; justify-content: flex-end; flex-wrap: wrap; }

/* ── Reel de marcas — evidencia en movimiento, tratamiento contenido ── */
.hero-reel {
  padding: 0 var(--gutter);
}
.hero-reel video {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: #000;
  border: 1px solid var(--hairline);
}

.btn {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 15px 28px;
  cursor: pointer;
  border: 1px solid var(--paper);
  background: transparent;
  color: var(--paper);
  transition: background 0.25s, color 0.25s, border-color 0.25s;
  display: inline-block;
}
.btn:hover { background: var(--paper); color: var(--ink); }
.btn.solid { background: var(--verde); border-color: var(--verde); color: var(--ink); font-weight: 600; }
.btn.solid:hover { background: var(--paper); border-color: var(--paper); color: var(--ink); }

/* ══════════════════════════════════════════════════
   MARQUEE — principio de método
   ══════════════════════════════════════════════════ */
.ticker {
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  overflow: hidden;
  white-space: nowrap;
  padding: 14px 0;
}
.ticker-track {
  display: inline-block;
  animation: ticker 36s linear infinite;
}
.ticker span {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--paper-dim);
  padding: 0 28px;
}
.ticker span::after { content: "·"; color: var(--verde); margin-left: 56px; }
@keyframes ticker { from { transform: translateX(0); } to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) {
  .ticker { white-space: normal; text-align: center; }
  .ticker-track { animation: none; }
}

/* ══════════════════════════════════════════════════
   TESIS
   ══════════════════════════════════════════════════ */
.tesis { padding: clamp(90px, 12vh, 150px) var(--gutter); }

.section-label {
  display: flex;
  align-items: baseline;
  gap: 18px;
  margin-bottom: clamp(34px, 5vh, 56px);
}
.section-label .num {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--verde-text);
}

.tesis-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(30px, 5vw, 90px);
}

.tesis h2 {
  font-weight: 900;
  font-stretch: 125%;
  font-size: clamp(30px, 3.6vw, 54px);
  line-height: 1.05;
  text-transform: uppercase;
  letter-spacing: -0.01em;
}

.tesis-body p {
  font-size: clamp(16px, 1.35vw, 19px);
  color: var(--paper-dim);
  max-width: var(--measure);
}
.tesis-body p + p { margin-top: 1.2em; }
.tesis-body strong { color: var(--paper); font-weight: 600; }

.principios {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: clamp(50px, 8vh, 90px);
  border-top: 1px solid var(--hairline);
}
.principio {
  padding: 30px 26px 30px 0;
  border-right: 1px solid var(--hairline);
}
.principio:last-child { border-right: none; }
.principio:not(:first-child) { padding-left: 26px; }
.principio .k {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--verde-text);
  display: block;
  margin-bottom: 12px;
}
.principio p {
  font-weight: 600;
  font-size: clamp(17px, 1.5vw, 21px);
  line-height: 1.3;
}

/* ══════════════════════════════════════════════════
   CASOS — el corazón del sitio. Split 50|50: DE → A
   ══════════════════════════════════════════════════ */
.casos { border-top: 1px solid var(--hairline); }
.casos-header {
  padding: clamp(70px, 10vh, 120px) var(--gutter) clamp(40px, 6vh, 70px);
}
.casos-header h2 {
  font-weight: 900;
  font-stretch: 125%;
  font-size: clamp(34px, 5vw, 74px);
  text-transform: uppercase;
  line-height: 1;
  letter-spacing: -0.015em;
}
.casos-header p {
  margin-top: 20px;
  color: var(--paper-dim);
  font-size: clamp(16px, 1.35vw, 19px);
  max-width: 60ch;
}

/* Índice de casos — tarjetas que enlazan a la página individual de cada caso */
.casos-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid var(--hairline);
  border-left: 1px solid var(--hairline);
}
.caso-card {
  display: flex;
  flex-direction: column;
  padding: clamp(30px, 3.5vw, 44px);
  border-right: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  text-decoration: none;
  transition: background 0.3s;
}
.caso-card:hover { background: var(--ink-2); }
.caso-card:last-child { grid-column: 1 / -1; }
.caso-card-meta {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}
.caso-card .cliente {
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.caso-card .cliente b { color: var(--verde-text); font-weight: 500; }
.caso-card h3 {
  font-weight: 900;
  font-stretch: 125%;
  font-size: clamp(22px, 2.4vw, 32px);
  line-height: 1.08;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  margin-bottom: 14px;
}
.caso-card-resultado { color: var(--paper-dim); font-size: 15px; max-width: 48ch; flex-grow: 1; }
.caso-card-link {
  margin-top: 20px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--paper);
}
.caso-card:hover .caso-card-link { color: var(--verde-text); }

.caso {
  border-top: 1px solid var(--hairline);
  padding: clamp(56px, 9vh, 110px) var(--gutter);
}

.caso-meta {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 26px;
}
.caso-meta .cliente {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.caso-meta .cliente b { color: var(--verde-text); font-weight: 500; }

.caso h1 {
  font-weight: 900;
  font-stretch: 125%;
  font-size: clamp(30px, 4.4vw, 66px);
  line-height: 1.02;
  text-transform: uppercase;
  letter-spacing: -0.015em;
  max-width: 24ch;
  text-wrap: balance;
  margin-bottom: clamp(36px, 6vh, 60px);
}

/* el split 50|50: estado inicial | consecuencia */
.dea {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: 1px solid var(--hairline);
}
.dea > div { padding: clamp(26px, 3vw, 44px); }
.dea .de { border-right: 1px solid var(--hairline); }
.dea .k {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 16px;
  color: var(--paper-dim);
}
.dea .a { background: var(--ink-2); }
.dea .a .k { color: var(--verde-text); }
.dea p { font-size: clamp(15px, 1.25vw, 18px); color: var(--paper-dim); max-width: 48ch; }
.dea .a p { color: var(--paper); }

.mediante {
  border: 1px solid var(--hairline);
  border-top: none;
  padding: 20px clamp(26px, 3vw, 44px);
  display: flex;
  gap: 22px;
  align-items: baseline;
}
.mediante .k {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--verde-text);
  white-space: nowrap;
}
.mediante p { font-size: 15px; color: var(--paper-dim); }

.caso-datos {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 34px;
  margin-top: 24px;
}
.caso-datos span {
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--paper-dim);
}
.caso-datos span::before { content: "— "; color: var(--verde); }

/* Carrusel de evidencia — se construye por JS a partir de data-case.
   Contrato: img/caso-NN-slug-01..12 en .webp, .jpg o .png.
   Tratamiento: grayscale por defecto → color al hover (desktop)
   o al entrar en viewport (touch). */
.carousel { position: relative; margin-bottom: clamp(36px, 6vh, 60px); min-height: clamp(200px, 34vw, 420px); }
.carousel:has(.carousel-track) { min-height: 0; }
.carousel-track {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}
.carousel-track::-webkit-scrollbar { display: none; }
.carousel-track figure {
  flex: 0 0 min(72%, 880px);
  scroll-snap-align: start;
  position: relative;
  margin: 0;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--ink-2);
  border: 1px solid var(--hairline);
}
.carousel-track img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  filter: grayscale(1) contrast(1.05);
  transition: filter 0.5s ease, transform 0.8s ease;
}
@media (hover: hover) {
  .carousel-track figure:hover img { filter: none; transform: scale(1.02); }
}
@media (hover: none) {
  .carousel-track figure.color img { filter: none; }
}
.carousel-track figcaption {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 8px 14px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--paper);
  background: rgba(11, 11, 11, 0.72);
  backdrop-filter: blur(4px);
}
/* Placeholder autodocumentado cuando la carpeta img/ aún no tiene archivos */
.carousel figure.pending {
  flex: 0 0 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 20px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--paper-dim);
  background:
    repeating-linear-gradient(45deg, transparent 0 14px, rgba(244,243,238,0.03) 14px 15px),
    var(--ink-2);
}
.carousel-ui {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 12px;
}
.carousel-count {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--paper-dim);
}
.carousel-count b { color: var(--verde-text); font-weight: 500; }
.carousel-btns { display: flex; gap: 8px; }
.carousel-btns button {
  font-family: var(--mono);
  font-size: 14px;
  background: transparent;
  border: 1px solid var(--hairline);
  color: var(--paper-dim);
  padding: 8px 18px;
  cursor: pointer;
  transition: border-color 0.25s, color 0.25s, background 0.25s;
}
.carousel-btns button:hover { border-color: var(--paper); color: var(--paper); }
.carousel-btns button:active { background: var(--paper); color: var(--ink); }

/* ══════════════════════════════════════════════════
   MÉTODO — cuatro pilares, declarados una sola vez
   ══════════════════════════════════════════════════ */
.metodo {
  border-top: 1px solid var(--hairline);
  padding: clamp(90px, 12vh, 150px) var(--gutter);
}
.metodo h2 {
  font-weight: 900;
  font-stretch: 125%;
  font-size: clamp(34px, 5vw, 74px);
  text-transform: uppercase;
  line-height: 1;
  letter-spacing: -0.015em;
  max-width: 16ch;
}
.metodo .lead {
  margin-top: 20px;
  color: var(--paper-dim);
  font-size: clamp(16px, 1.35vw, 19px);
  max-width: 58ch;
}

.pilares {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--hairline);
  margin-top: clamp(44px, 7vh, 80px);
}
.pilar {
  padding: clamp(26px, 2.6vw, 40px);
  border-right: 1px solid var(--hairline);
  transition: background 0.3s;
}
.pilar:last-child { border-right: none; }
.pilar:hover { background: var(--ink-2); }
.pilar .num {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--verde-text);
  display: block;
  margin-bottom: 42px;
}
.pilar h4 {
  font-weight: 900;
  font-stretch: 125%;
  font-size: clamp(19px, 1.8vw, 26px);
  text-transform: uppercase;
  letter-spacing: 0.01em;
  margin-bottom: 14px;
}
.pilar p { font-size: 14.5px; color: var(--paper-dim); }

/* ══════════════════════════════════════════════════
   ENTREGABLES
   ══════════════════════════════════════════════════ */
.entregables {
  border-top: 1px solid var(--hairline);
  padding: clamp(90px, 12vh, 150px) var(--gutter);
}
.entregables h2 {
  font-weight: 900;
  font-stretch: 125%;
  font-size: clamp(30px, 3.8vw, 56px);
  text-transform: uppercase;
  line-height: 1.04;
  letter-spacing: -0.01em;
  max-width: 22ch;
}
.entregables-lista { margin-top: clamp(40px, 6vh, 70px); }
.entregable {
  display: grid;
  grid-template-columns: 90px 1fr 1.4fr;
  gap: 24px;
  align-items: baseline;
  padding: 26px 0;
  border-top: 1px solid var(--hairline);
}
.entregable:last-child { border-bottom: 1px solid var(--hairline); }
.entregable .num { font-family: var(--mono); font-size: 13px; color: var(--verde-text); }
.entregable h4 {
  font-weight: 800;
  font-stretch: 118%;
  font-size: clamp(18px, 1.7vw, 24px);
  text-transform: uppercase;
}
.entregable p { color: var(--paper-dim); font-size: 15.5px; max-width: 52ch; }

/* ══════════════════════════════════════════════════
   FUNDADOR
   ══════════════════════════════════════════════════ */
.fundador {
  border-top: 1px solid var(--hairline);
  padding: clamp(90px, 12vh, 150px) var(--gutter);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(30px, 5vw, 90px);
}
.fundador h2 {
  font-weight: 900;
  font-stretch: 125%;
  font-size: clamp(30px, 3.8vw, 56px);
  text-transform: uppercase;
  line-height: 1.04;
  letter-spacing: -0.01em;
}
.fundador-body p {
  font-size: clamp(16px, 1.35vw, 19px);
  color: var(--paper-dim);
  max-width: var(--measure);
}
.fundador-body p + p { margin-top: 1.2em; }
.fundador-body strong { color: var(--paper); font-weight: 600; }
.fundador-body .firma {
  margin-top: 34px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--paper);
}
.fundador-body .firma .bar { color: var(--verde); }

/* ══════════════════════════════════════════════════
   DIAGNÓSTICO — cierre y formulario
   ══════════════════════════════════════════════════ */
.diagnostico {
  border-top: 1px solid var(--hairline);
  background: var(--verde-tinta);
  padding: clamp(90px, 12vh, 150px) var(--gutter);
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: clamp(36px, 5vw, 90px);
}
.diagnostico h2 {
  font-weight: 900;
  font-stretch: 125%;
  font-size: clamp(32px, 4.4vw, 64px);
  text-transform: uppercase;
  line-height: 1.02;
  letter-spacing: -0.015em;
}
.diagnostico h2 em { font-style: normal; color: var(--verde); filter: brightness(1.7); }
.diagnostico .lead {
  margin-top: 22px;
  font-size: clamp(16px, 1.35vw, 19px);
  color: rgba(244, 243, 238, 0.75);
  max-width: 48ch;
}

.form-panel label {
  display: block;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 8px;
  color: rgba(244, 243, 238, 0.75);
}
.form-panel input, .form-panel select {
  width: 100%;
  padding: 14px;
  margin-bottom: 20px;
  background: rgba(244, 243, 238, 0.06);
  border: 1px solid rgba(244, 243, 238, 0.25);
  color: var(--paper);
  font-family: var(--display);
  font-size: 15px;
  border-radius: 0;
}
.form-panel select { appearance: none; }
.form-panel option { color: var(--ink); }
.form-panel input:focus, .form-panel select:focus {
  outline: none;
  border-color: var(--paper);
  background: rgba(244, 243, 238, 0.1);
}
.form-panel .btn { width: 100%; text-align: center; }
.form-nota {
  margin-top: 16px;
  font-size: 13px;
  color: rgba(244, 243, 238, 0.6);
}
.form-nota a { color: var(--paper); }

/* ══════════════════════════════════════════════════
   FOOTER
   ══════════════════════════════════════════════════ */
footer { padding: 60px var(--gutter) 40px; border-top: 1px solid var(--hairline); }
.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--hairline);
}
.footer-signature {
  display: flex;
  align-items: center;
  gap: 16px;
  text-decoration: none;
}
.footer-signature img {
  display: block;
  width: 44px;
  height: auto;
  flex-shrink: 0;
}
.footer-signature p {
  font-size: 15px;
  line-height: 1.35;
  color: var(--paper-dim);
  max-width: 22ch;
  transition: color 0.25s;
}
.footer-signature:hover p { color: var(--paper); }
.footer-links { display: flex; gap: 30px; }
.footer-links a {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--paper-dim);
  text-decoration: none;
  transition: color 0.25s;
}
.footer-links a:hover { color: var(--paper); }

.footer-social { display: flex; gap: 18px; align-items: center; }
.footer-social a { display: block; line-height: 0; }
.footer-social svg {
  width: 20px;
  height: 20px;
  fill: var(--paper-dim);
  transition: fill 0.25s;
}
.footer-social a:hover svg { fill: var(--paper); }

.footer-bottom {
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--paper-dim);
}

/* ══════════════════════════════════════════════════
   PÁGINA DE CASO INDIVIDUAL — breadcrumb, prev/next, cierre
   ══════════════════════════════════════════════════ */
.caso-breadcrumb {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  padding: 140px var(--gutter) 30px;
}
.caso-breadcrumb a {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--paper-dim);
  transition: color 0.25s;
}
.caso-breadcrumb a:hover { color: var(--paper); }
.caso-progress {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--paper-dim);
}

.caso-nav {
  border-top: 1px solid var(--hairline);
  display: grid;
  grid-template-columns: 1fr 1fr;
}
.caso-nav-link {
  padding: clamp(30px, 4vw, 50px) var(--gutter);
  text-decoration: none;
  transition: background 0.3s;
}
.caso-nav-link:hover { background: var(--ink-2); }
.caso-nav-prev { border-right: 1px solid var(--hairline); }
.caso-nav-next { text-align: right; }
.caso-nav-eyebrow {
  display: block;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--paper-dim);
  margin-bottom: 10px;
}
.caso-nav-link strong {
  display: block;
  font-weight: 900;
  font-stretch: 125%;
  font-size: clamp(18px, 2.2vw, 26px);
  text-transform: uppercase;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.caso-cta {
  border-top: 1px solid var(--hairline);
  padding: clamp(60px, 9vh, 100px) var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
}
.caso-cta p {
  font-weight: 900;
  font-stretch: 125%;
  font-size: clamp(22px, 3vw, 34px);
  text-transform: uppercase;
  line-height: 1.1;
  letter-spacing: -0.01em;
  max-width: 20ch;
}

/* ══════════════════════════════════════════════════
   REVEAL ON SCROLL
   ══════════════════════════════════════════════════ */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; } }
html.no-js .reveal { opacity: 1; transform: none; }

/* ══════════════════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════════════════ */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .hero { min-height: auto; padding-top: 120px; }
  .hero-baseline { grid-template-columns: 1fr; }
  .hero-actions { justify-content: flex-start; }
  .tesis-grid, .fundador, .diagnostico { grid-template-columns: 1fr; }
  .principios { grid-template-columns: 1fr; }
  .principio { border-right: none; border-bottom: 1px solid var(--hairline); padding-left: 0 !important; }
  .principio:last-child { border-bottom: none; }
  .dea { grid-template-columns: 1fr; }
  .dea .de { border-right: none; border-bottom: 1px solid var(--hairline); }
  .pilares { grid-template-columns: 1fr 1fr; }
  .pilar:nth-child(2n) { border-right: none; }
  .pilar:nth-child(-n+2) { border-bottom: 1px solid var(--hairline); }
  .entregable { grid-template-columns: 60px 1fr; }
  .entregable p { grid-column: 2; }
  .mediante { flex-direction: column; gap: 8px; }
  .carousel-track figure { flex: 0 0 86%; }
  .casos-grid { grid-template-columns: 1fr; }
  .caso-card:last-child { grid-column: auto; }
  .caso-breadcrumb { padding-top: 120px; }
  .caso-nav { grid-template-columns: 1fr; }
  .caso-nav-prev { border-right: none; border-bottom: 1px solid var(--hairline); }
  .caso-nav-next { text-align: left; }
  .caso-cta { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 560px) {
  .pilares { grid-template-columns: 1fr; }
  .pilar { border-right: none !important; border-bottom: 1px solid var(--hairline); }
  .pilar:last-child { border-bottom: none; }
}

/* ══════════════════════════════════════════════════
   WHATSAPP — botón flotante, fijo en scroll
   ══════════════════════════════════════════════════ */
.whatsapp-float {
  position: fixed;
  right: 22px;
  bottom: 22px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--verde);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
  transition: transform 0.2s ease;
}
.whatsapp-float:hover { transform: scale(1.07); }
.whatsapp-float:focus-visible { outline: 2px solid var(--paper); outline-offset: 3px; }
.whatsapp-float svg { width: 28px; height: 28px; fill: var(--paper); }
@media (max-width: 560px) {
  .whatsapp-float { right: 16px; bottom: 16px; width: 50px; height: 50px; }
  .whatsapp-float svg { width: 25px; height: 25px; }
}