/* =========================================================
   Neutrategy — hoja de estilos única
   Marca: verde #71BF44 (logo), grafito #55585A (wordmark)
   ========================================================= */

:root {
  --verde:        #71bf44;
  --verde-hondo:  #3f6b23;
  --verde-claro:  #eaf5e2;
  --grafito:      #55585a;
  --tinta:        #1e2427;
  --tinta-suave:  #4a545a;
  --papel:        #ffffff;
  --bruma:        #f3f6f0;
  --linea:        #e0e6da;

  --display: "Nunito", "Arial Rounded MT Bold", "Trebuchet MS", sans-serif;
  --texto:   "IBM Plex Sans", -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono:    "IBM Plex Mono", ui-monospace, "Courier New", monospace;

  --ancho: 1160px;
  --radio: 14px;
  --sombra: 0 1px 2px rgba(30,36,39,.05), 0 12px 32px -18px rgba(30,36,39,.28);
  --nav-alto: 76px;
}

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: var(--nav-alto); }

body {
  margin: 0;
  font-family: var(--texto);
  font-size: 17px;
  line-height: 1.68;
  color: var(--tinta-suave);
  background: var(--papel);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--verde-hondo); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 {
  font-family: var(--display);
  color: var(--tinta);
  line-height: 1.15;
  margin: 0 0 .6em;
  font-weight: 800;
  letter-spacing: -.015em;
}
h1 { font-size: clamp(2.3rem, 5.2vw, 3.7rem); }
h2 { font-size: clamp(1.75rem, 3.4vw, 2.5rem); }
h3 { font-size: 1.22rem; font-weight: 700; }
p { margin: 0 0 1.1em; }
strong { color: var(--tinta); font-weight: 600; }

:focus-visible {
  outline: 3px solid var(--verde);
  outline-offset: 3px;
  border-radius: 4px;
}

.contenedor { width: min(100% - 2.5rem, var(--ancho)); margin-inline: auto; }

.saltar {
  position: absolute; left: -9999px; top: 0; z-index: 999;
  background: var(--tinta); color: #fff; padding: .8rem 1.2rem; border-radius: 0 0 8px 0;
}
.saltar:focus { left: 0; }

/* ---------- rótulos y secciones ---------- */
.rotulo {
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--verde-hondo);
  margin: 0 0 .9rem;
  display: flex;
  align-items: center;
  gap: .7rem;
}
.rotulo::after {
  content: ""; flex: 1; height: 1px; background: var(--linea); max-width: 90px;
}
.rotulo--centro { justify-content: center; }
.rotulo--centro::before {
  content: ""; flex: 1; height: 1px; background: var(--linea); max-width: 90px;
}

.seccion { padding: clamp(4rem, 8vw, 6.5rem) 0; }
.seccion--bruma { background: var(--bruma); }
.seccion__intro { max-width: 62ch; }
.seccion__intro--centro { margin-inline: auto; text-align: center; }
.seccion__intro p { font-size: 1.08rem; }

.bajada { font-size: 1.12rem; color: var(--tinta-suave); }

/* ---------- botones ---------- */
.boton {
  display: inline-flex; align-items: center; gap: .55rem;
  font-family: var(--display); font-weight: 700; font-size: .98rem;
  padding: .82rem 1.6rem; border-radius: 999px;
  border: 2px solid transparent; cursor: pointer;
  transition: transform .18s ease, background-color .18s ease, color .18s ease, border-color .18s ease;
  text-decoration: none;
}
.boton:hover { text-decoration: none; transform: translateY(-2px); }
.boton--verde { background: var(--verde); color: #fff; }
.boton--verde:hover { background: var(--verde-hondo); color: #fff; }
.boton--linea { border-color: currentColor; color: var(--tinta); background: transparent; }
.boton--linea:hover { background: var(--tinta); color: #fff; border-color: var(--tinta); }
.boton--claro { border-color: rgba(255,255,255,.7); color: #fff; }
.boton--claro:hover { background: #fff; color: var(--tinta); border-color: #fff; }
.boton .flecha { transition: transform .18s ease; }
.boton:hover .flecha { transform: translateX(3px); }

/* ---------- encabezado ---------- */
.encabezado {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color .25s ease, box-shadow .25s ease;
}
.encabezado.esta-fija { border-bottom-color: var(--linea); box-shadow: 0 6px 20px -18px rgba(0,0,0,.4); }
.encabezado__fila {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1.5rem; height: var(--nav-alto);
}
.marca img { height: 38px; width: auto; }

.nav ul { display: flex; align-items: center; gap: .35rem; list-style: none; margin: 0; padding: 0; }
.nav a {
  display: block; padding: .55rem .8rem; border-radius: 8px;
  font-size: .93rem; font-weight: 600; color: var(--grafito); font-family: var(--display);
}
.nav a:hover, .nav a.activo { color: var(--verde-hondo); background: var(--verde-claro); text-decoration: none; }

.submenu { position: relative; }
.submenu > a::after { content: " ▾"; font-size: .72em; opacity: .65; }
.submenu ul {
  position: absolute; top: calc(100% + .35rem); left: 0;
  display: block; min-width: 250px; padding: .45rem;
  background: #fff; border: 1px solid var(--linea); border-radius: 12px;
  box-shadow: var(--sombra);
  opacity: 0; visibility: hidden; transform: translateY(-6px);
  transition: opacity .18s ease, transform .18s ease, visibility .18s;
}
.submenu:hover ul, .submenu:focus-within ul { opacity: 1; visibility: visible; transform: translateY(0); }
.submenu ul a { padding: .6rem .75rem; font-weight: 500; }

.hamburguesa {
  display: none; background: none; border: 0; cursor: pointer;
  padding: .5rem; color: var(--tinta);
}
.hamburguesa span {
  display: block; width: 24px; height: 2px; background: currentColor; border-radius: 2px;
  transition: transform .25s ease, opacity .25s ease;
}
.hamburguesa span + span { margin-top: 6px; }
.hamburguesa[aria-expanded="true"] span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.hamburguesa[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.hamburguesa[aria-expanded="true"] span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* ---------- portada ---------- */
.portada {
  position: relative;
  min-height: min(86vh, 760px);
  display: flex; align-items: center;
  color: #fff;
  overflow: hidden;
}
.portada__fondo {
  position: absolute; inset: 0;
  background: url("../img/hero.jpg") center 62% / cover no-repeat;
  transform: scale(1.04);
}
.portada__velo {
  position: absolute; inset: 0;
  background:
    linear-gradient(105deg, rgba(20,31,19,.82) 0%, rgba(24,38,22,.56) 48%, rgba(30,45,26,.18) 100%),
    linear-gradient(to top, rgba(18,26,18,.62) 0%, transparent 40%);
}
.portada .contenedor { position: relative; padding: 6rem 0 5rem; }
.portada__texto { max-width: 46rem; }
.portada__rotulo {
  font-family: var(--mono); font-size: .74rem; letter-spacing: .22em; text-transform: uppercase;
  color: #cfe9bd; margin: 0 0 1.3rem; display: flex; align-items: center; gap: .8rem;
}
.portada__rotulo::before { content: ""; width: 42px; height: 2px; background: var(--verde); }
.portada h1 { color: #fff; margin-bottom: .5rem; text-wrap: balance; }
.portada h1 em { font-style: normal; color: var(--verde); }
.portada__bajada {
  font-size: clamp(1.05rem, 2vw, 1.32rem);
  color: #e4ece0; max-width: 34rem; margin-bottom: 2.2rem;
  font-weight: 300;
}
.portada__acciones { display: flex; flex-wrap: wrap; gap: .9rem; }
.portada__pie {
  position: relative; margin-top: 3.5rem; padding-top: 1.6rem;
  border-top: 1px solid rgba(255,255,255,.2);
  display: flex; flex-wrap: wrap; gap: 2.4rem;
  font-family: var(--mono); font-size: .78rem; letter-spacing: .06em;
  color: rgba(255,255,255,.78); text-transform: uppercase;
}

/* ---------- acerca de ---------- */
.acerca { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(2.5rem, 5vw, 5rem); align-items: start; }
.acerca__figura {
  position: sticky; top: calc(var(--nav-alto) + 1.6rem);
  background: #fff; border: 1px solid var(--linea); border-radius: var(--radio);
  padding: 1.4rem; box-shadow: var(--sombra); margin: 0;
}
.acerca__figura figcaption {
  font-size: .94rem; line-height: 1.55; color: var(--tinta-suave);
  margin-top: 1.1rem; padding-top: 1rem; border-top: 1px solid var(--linea);
}
.porque {
  margin-top: 2.4rem; padding: 1.8rem 2rem;
  background: var(--verde-claro); border-left: 4px solid var(--verde);
  border-radius: 0 var(--radio) var(--radio) 0;
}
.porque h3 { margin-bottom: .5rem; }
.porque p:last-child { margin-bottom: 0; }

/* ---------- hoja de ruta (elemento firma) ---------- */
.ruta { position: relative; margin-top: 3.5rem; }
.ruta__via {
  position: absolute; top: 27px; left: 6%; right: 6%; height: 2px;
  background: repeating-linear-gradient(to right, var(--linea) 0 12px, transparent 12px 22px);
}
.ruta__avance {
  position: absolute; top: 27px; left: 6%; height: 2px; width: 0;
  background: var(--verde);
  transition: width 1.4s cubic-bezier(.22,.61,.36,1);
}
.ruta.esta-visible .ruta__avance { width: 88%; }

.ruta__pasos {
  position: relative; list-style: none; margin: 0; padding: 0;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.6rem;
}
.paso { text-align: center; padding: 0 .4rem; }
.paso__hito {
  width: 56px; height: 56px; margin: 0 auto 1.1rem;
  display: grid; place-items: center;
  border-radius: 50%;
  background: #fff; border: 2px solid var(--linea);
  font-family: var(--display); font-weight: 800; font-size: 1.25rem; color: var(--grafito);
  transition: background-color .5s ease, border-color .5s ease, color .5s ease, transform .5s ease;
}
.ruta.esta-visible .paso__hito {
  background: var(--verde); border-color: var(--verde); color: #fff;
}
.ruta.esta-visible .paso:nth-child(1) .paso__hito { transition-delay: .15s; }
.ruta.esta-visible .paso:nth-child(2) .paso__hito { transition-delay: .5s; }
.ruta.esta-visible .paso:nth-child(3) .paso__hito { transition-delay: .85s; }
.ruta.esta-visible .paso:nth-child(4) .paso__hito { transition-delay: 1.2s; }
.paso h3 { font-size: 1.02rem; letter-spacing: .04em; text-transform: uppercase; margin-bottom: .5rem; }
.paso p { font-size: .95rem; margin: 0; }

/* ---------- soluciones ---------- */
.grilla-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.6rem; margin-top: 3rem; }

.tarjeta {
  display: flex; flex-direction: column;
  background: #fff; border: 1px solid var(--linea); border-radius: var(--radio);
  padding: 2rem 1.8rem 1.6rem;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.tarjeta:hover { transform: translateY(-4px); box-shadow: var(--sombra); border-color: #c9d8bd; }
.tarjeta__num {
  font-family: var(--mono); font-size: .74rem; letter-spacing: .14em;
  color: var(--verde-hondo); margin-bottom: 1rem;
}
.tarjeta h3 { margin-bottom: .7rem; font-size: 1.3rem; }
.tarjeta p { font-size: .97rem; }
.tarjeta__enlace {
  margin-top: auto; padding-top: 1rem;
  font-family: var(--display); font-weight: 700; font-size: .93rem;
  display: inline-flex; align-items: center; gap: .4rem;
}
.tarjeta__enlace:hover { text-decoration: none; }
.tarjeta__enlace .flecha { transition: transform .18s ease; }
.tarjeta:hover .tarjeta__enlace .flecha { transform: translateX(4px); }

/* ---------- proyectos / logos ---------- */
.logos {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: .9rem; margin: 2.8rem 0 0; padding: 0;
}
.logos li { list-style: none; }
.logos figure {
  margin: 0; background: #fff; aspect-ratio: 8 / 5;
  display: grid; place-items: center; padding: 1.1rem;
  border: 1px solid var(--linea); border-radius: 10px;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.logos img {
  max-height: 100%; width: auto; object-fit: contain;
  filter: grayscale(1); opacity: .58;
  transition: filter .25s ease, opacity .25s ease, transform .25s ease;
}
.logos figure:hover { border-color: #c9d8bd; box-shadow: var(--sombra); }
.logos figure:hover img { filter: none; opacity: 1; transform: scale(1.05); }

/* ---------- equipo ---------- */
.equipo { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2.2rem; margin-top: 3rem; }
.persona { text-align: center; }
.persona__retrato {
  position: relative; width: 148px; aspect-ratio: 1; margin: 0 auto 1.2rem;
  border-radius: 50%; overflow: hidden;
  box-shadow: 0 0 0 1px var(--linea), 0 0 0 8px #fff, 0 0 0 9px var(--linea);
}
.persona__retrato img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.persona h3 { margin-bottom: .25rem; font-size: 1.1rem; }
.persona__rol {
  font-family: var(--mono); font-size: .71rem; letter-spacing: .1em; text-transform: uppercase;
  color: var(--verde-hondo); margin-bottom: .9rem;
  min-height: 2.4em; display: flex; align-items: center; justify-content: center;
}
.persona p { font-size: .92rem; line-height: 1.6; }

/* ---------- contacto ---------- */
.contacto { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(2.5rem, 5vw, 4.5rem); align-items: start; }
.dato { display: flex; gap: 1rem; margin-bottom: 1.6rem; align-items: flex-start; }
.dato__icono {
  flex: 0 0 42px; height: 42px; border-radius: 50%;
  background: var(--verde-claro); color: var(--verde-hondo);
  display: grid; place-items: center;
}
.dato__icono svg { width: 20px; height: 20px; }
.dato h3 { font-size: .95rem; margin-bottom: .15rem; }
.dato p, .dato a { margin: 0; font-size: 1rem; }

.formulario { display: grid; gap: 1.1rem; }
.campo { display: grid; gap: .4rem; }
.campo label {
  font-family: var(--mono); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase;
  color: var(--grafito);
}
.campo input, .campo textarea, .campo select {
  font-family: var(--texto); font-size: 1rem; color: var(--tinta);
  padding: .8rem .95rem; border: 1px solid var(--linea); border-radius: 10px;
  background: #fff; width: 100%;
  transition: border-color .18s ease, box-shadow .18s ease;
}
.campo input:focus, .campo textarea:focus, .campo select:focus {
  outline: none; border-color: var(--verde); box-shadow: 0 0 0 3px rgba(113,191,68,.18);
}
.campo textarea { resize: vertical; min-height: 130px; }
.formulario .boton { justify-self: start; }
.nota-form { font-size: .85rem; color: var(--grafito); margin: 0; }

/* ---------- llamado final ---------- */
.llamado {
  position: relative; color: #fff; text-align: center;
  padding: clamp(4rem, 8vw, 6rem) 0;
  background: url("../img/cta.jpg") center 55% / cover no-repeat fixed;
}
.llamado::before { content: ""; position: absolute; inset: 0; background: rgba(24,38,22,.82); }
.llamado .contenedor { position: relative; }
.llamado h2 { color: #fff; max-width: 22ch; margin-inline: auto; }
.llamado p { color: #dbe6d5; max-width: 52ch; margin-inline: auto 	; margin-bottom: 2rem; }

/* ---------- pie ---------- */
.pie { background: var(--tinta); color: #a8b2b0; padding: 3.5rem 0 1.8rem; font-size: .93rem; }
.pie__fila { display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 2.5rem; }
.pie img { height: 40px; width: auto; margin-bottom: 1.1rem; }
.pie h4 {
  color: #fff; font-family: var(--mono); font-size: .74rem; letter-spacing: .14em;
  text-transform: uppercase; font-weight: 500; margin-bottom: 1rem;
}
.pie ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .5rem; }
.pie a { color: #a8b2b0; }
.pie a:hover { color: var(--verde); text-decoration: none; }
.pie__legal {
  margin-top: 3rem; padding-top: 1.4rem; border-top: 1px solid rgba(255,255,255,.12);
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem;
  font-size: .82rem; color: #7d8785;
}

/* ---------- páginas de detalle ---------- */
.cabecera-pagina {
  background: var(--tinta);
  color: #fff; padding: clamp(3.5rem, 7vw, 5.5rem) 0 clamp(3rem, 6vw, 4.5rem);
  position: relative; overflow: hidden;
}
.cabecera-pagina::after {
  content: ""; position: absolute; right: -80px; bottom: -120px;
  width: 340px; height: 340px; border-radius: 50%;
  border: 44px solid rgba(113,191,68,.14);
}
.cabecera-pagina .contenedor { position: relative; }
.cabecera-pagina h1 { color: #fff; max-width: 20ch; }
.cabecera-pagina p { color: #cdd6d3; max-width: 60ch; font-size: 1.1rem; margin: 0; }
.migas {
  font-family: var(--mono); font-size: .74rem; letter-spacing: .12em; text-transform: uppercase;
  color: #8fa88a; margin-bottom: 1.4rem;
}
.migas a { color: #8fa88a; }
.migas a:hover { color: var(--verde); }

.bloque { margin-bottom: 3.5rem; max-width: 880px; }
.bloque:last-child { margin-bottom: 0; }
.bloque__titulo { display: flex; align-items: center; gap: 1rem; margin-bottom: 1.8rem; flex-wrap: wrap; }
.bloque__titulo h2 { margin: 0; font-size: clamp(1.4rem, 2.6vw, 1.85rem); }
.bloque__titulo img { max-width: 260px; }

.lista-detalle { list-style: none; margin: 0; padding: 0; display: grid; gap: 1.2rem; max-width: 880px; }
.lista-detalle > li {
  background: #fff; border: 1px solid var(--linea); border-radius: var(--radio);
  padding: 1.5rem 1.7rem; border-left: 4px solid var(--verde);
}
.lista-detalle h3 { margin-bottom: .5rem; font-size: 1.08rem; }
.lista-detalle p { margin: 0; font-size: .98rem; }
.lista-detalle p + p { margin-top: .7rem; }

.notas {
  max-width: 880px;
  margin-top: 2.5rem; padding-top: 1.4rem; border-top: 1px solid var(--linea);
  font-size: .87rem; color: var(--grafito);
}
.notas ol { padding-left: 1.2rem; margin: 0; }

.galeria { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1rem; margin-top: 1.8rem; }
.galeria a { display: block; overflow: hidden; border: 1px solid var(--linea); border-radius: 10px; background: #fff; }
.galeria img {
  width: 100%; aspect-ratio: 4 / 3; object-fit: cover; object-position: top left;
  transition: transform .3s ease;
}
.galeria a:hover img { transform: scale(1.04); }

.volver { display: inline-flex; align-items: center; gap: .5rem; font-family: var(--display); font-weight: 700; }

/* ---------- animación de entrada ---------- */
.js .revelar { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s ease; }
.js .revelar.esta-visible { opacity: 1; transform: none; }

/* ---------- puente Neutrategy ↔ plataforma ---------- */
.puente {
  background: linear-gradient(180deg, var(--verde-claro) 0%, #f7fbf3 100%);
  border-top: 1px solid var(--linea);
  border-bottom: 1px solid var(--linea);
  padding: clamp(3.2rem, 6vw, 4.8rem) 0;
}
.puente__fila { display: grid; grid-template-columns: 1fr 1.15fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.puente h2 { margin-bottom: .6rem; }
.puente .bajada { margin-bottom: 1.4rem; }
.puente__acciones { display: flex; flex-wrap: wrap; gap: .9rem; }

.capas { display: grid; gap: .9rem; }
.capa {
  background: #fff; border: 1px solid var(--linea); border-radius: var(--radio);
  padding: 1.1rem 1.3rem; display: grid; grid-template-columns: auto 1fr; gap: 0 1rem;
}
.capa__orden {
  font-family: var(--mono); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase;
  color: var(--verde-hondo); background: var(--verde-claro); border-radius: 6px;
  padding: .35rem .55rem; align-self: start; white-space: nowrap;
}
.capa h3 { font-size: 1.05rem; margin: 0 0 .3rem; }
.capa p { margin: 0; font-size: .94rem; }

/* ---------- estados y rótulos de alcance ---------- */
.estado {
  display: inline-block; font-family: var(--mono); font-size: .66rem;
  letter-spacing: .12em; text-transform: uppercase; font-weight: 500;
  padding: .28rem .55rem; border-radius: 999px; vertical-align: middle;
  margin-left: .55rem; border: 1px solid transparent; white-space: nowrap;
}
.estado--activo { background: var(--verde-claro); color: var(--verde-hondo); border-color: #c9e3b5; }
.estado--curso  { background: #fdf4e3; color: #8a6212; border-color: #ecd9ae; }

.alcance {
  border-left: 3px solid var(--verde);
  background: var(--bruma);
  border-radius: 0 10px 10px 0;
  padding: 1.1rem 1.3rem;
  margin: 1.8rem 0 0;
  font-size: .93rem;
}
.alcance h4 {
  font-family: var(--mono); font-size: .7rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--grafito); margin: 0 0 .5rem; font-weight: 500;
}
.alcance p:last-child { margin-bottom: 0; }

/* ---------- enlaces externos ---------- */
.ext::after {
  content: "↗"; font-size: .82em; margin-left: .28em;
  display: inline-block; vertical-align: baseline; opacity: .8;
}

/* ---------- equipo: contacto ---------- */
.persona__contacto {
  font-family: var(--mono); font-size: .78rem; word-break: break-word;
  margin: .1rem 0 .9rem; display: block;
}
.persona__ambito {
  display: block; font-size: .82rem; color: var(--grafito);
  border-top: 1px solid var(--linea); margin-top: .9rem; padding-top: .8rem;
}

.equipo__nota {
  max-width: 64ch; margin: 2.6rem auto 0; text-align: center;
  font-size: .95rem; color: var(--grafito);
  border-top: 1px solid var(--linea); padding-top: 1.6rem;
}

/* ---------- ruta a la plataforma ---------- */
.plataforma-cabecera {
  display: grid; grid-template-columns: 1fr auto; gap: 1.5rem;
  align-items: center; border: 1px solid var(--linea); border-radius: var(--radio);
  background: var(--bruma); padding: 1.5rem 1.7rem; margin-bottom: 3rem;
}
.plataforma-cabecera h2 { margin: 0 0 .35rem; font-size: 1.35rem; }
.plataforma-cabecera p { margin: 0; font-size: .96rem; }

/* ---------- responsive ---------- */
@media (max-width: 1000px) {
  .acerca, .contacto { grid-template-columns: 1fr; }
  .acerca__figura { position: static; }
  .equipo { grid-template-columns: repeat(2, 1fr); gap: 2.4rem; }
  .grilla-3 { grid-template-columns: 1fr; }
  .pie__fila { grid-template-columns: 1fr 1fr; }
  .puente__fila { grid-template-columns: 1fr; }
  .plataforma-cabecera { grid-template-columns: 1fr; }
}

@media (max-width: 860px) {
  .hamburguesa { display: block; }
  .nav {
    position: absolute; top: var(--nav-alto); left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--linea);
    padding: .8rem 1.25rem 1.4rem;
    display: none; box-shadow: var(--sombra);
  }
  .nav.esta-abierta { display: block; }
  .nav ul { flex-direction: column; align-items: stretch; gap: .15rem; }
  .nav a { padding: .75rem .6rem; font-size: 1rem; }
  .submenu ul {
    position: static; opacity: 1; visibility: visible; transform: none;
    box-shadow: none; border: 0; border-left: 2px solid var(--linea);
    border-radius: 0; margin-left: .6rem; padding: 0 0 0 .4rem; min-width: 0;
  }
  .submenu > a::after { content: ""; }

  .ruta__via, .ruta__avance { display: none; }
  .ruta__pasos { grid-template-columns: 1fr; gap: 0; }
  .paso {
    text-align: left; display: grid; grid-template-columns: 56px 1fr; gap: 0 1.3rem;
    padding: 0 0 2.2rem; position: relative;
  }
  .paso:not(:last-child)::before {
    content: ""; position: absolute; left: 27px; top: 60px; bottom: 8px; width: 2px;
    background: repeating-linear-gradient(to bottom, var(--linea) 0 10px, transparent 10px 18px);
  }
  .paso__hito { margin: 0 0 0; grid-row: span 2; }
  .paso h3 { align-self: center; margin-bottom: .4rem; }
  .paso p { grid-column: 2; }

  .llamado { background-attachment: scroll; }
  .portada { min-height: 0; }
}

@media (max-width: 560px) {
  body { font-size: 16px; }
  .equipo { grid-template-columns: 1fr; }
  .pie__fila { grid-template-columns: 1fr; gap: 2rem; }
  .portada__acciones .boton { width: 100%; justify-content: center; }
  .portada__pie { gap: 1rem 2rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }
  .js .revelar { opacity: 1; transform: none; }
  .ruta__avance { width: 88%; }
}

@media print {
  .encabezado, .llamado, .formulario, .hamburguesa { display: none; }
  body { font-size: 11pt; color: #000; }
  .seccion { padding: 1rem 0; }
}