/* =========================================================
   Condotta Automotores — sistema de diseño
   Paleta extraída del isotipo real (rojo #FC3332, negro, blanco)
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Oswald:wght@400;500;600;700&family=Manrope:wght@400;500;600;700;800&family=Caveat:wght@600;700&display=swap');

:root {
  /* Color */
  --rojo-500: #fc3332;
  --rojo-600: #e01e1d;
  --rojo-700: #b71715;
  --rojo-400: #ff5d57;
  --rojo-glow: rgba(252, 51, 50, 0.35);

  --negro-950: #0a0a0b;
  --negro-900: #131315;
  --negro-800: #1c1c1f;
  --negro-700: #29292d;
  --linea-oscura: rgba(255, 255, 255, 0.09);

  --crema-100: #f7f5f1;
  --crema-200: #efece5;
  --gris-500: #8a8a8e;
  --gris-700: #55555a;

  --tinta: #17171a;

  /* Tipografía */
  --f-display: 'Oswald', sans-serif;
  --f-cuerpo: 'Manrope', sans-serif;
  --f-firma: 'Caveat', cursive;

  /* Ritmo */
  --radio: 4px;
  --radio-lg: 14px;
  --sombra-lg: 0 30px 60px -25px rgba(0, 0, 0, 0.5);
  --transicion: 340ms cubic-bezier(.22, 1, .36, 1);
  --header-h: 84px;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); }
body, h1, h2, h3, h4, p, figure { margin: 0; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
button { font: inherit; cursor: pointer; }
input, textarea, select { font: inherit; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

body {
  background: var(--crema-100);
  color: var(--tinta);
  font-family: var(--f-cuerpo);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--f-display);
  text-transform: uppercase;
  letter-spacing: 0.01em;
  line-height: 1.06;
  font-weight: 600;
}

.contenedor {
  width: min(1180px, 100% - 3rem);
  margin-inline: auto;
}

.oculto-visualmente {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap;
}

/* ---------- Botones ---------- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: .6em;
  padding: 0.95em 1.8em;
  font-family: var(--f-display);
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: var(--radio);
  border: 1px solid transparent;
  overflow: hidden;
  isolation: isolate;
  transition: transform var(--transicion), box-shadow var(--transicion), color var(--transicion), border-color var(--transicion);
}
.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  transition: transform var(--transicion);
}
.btn:active { transform: translateY(1px) scale(.99); }

.btn-primario {
  color: #fff;
  background: var(--rojo-500);
}
.btn-primario::before { background: var(--rojo-600); transform: translateY(101%); }
.btn-primario:hover::before { transform: translateY(0); }
.btn-primario:hover { box-shadow: 0 14px 30px -12px var(--rojo-glow); }

.btn-fantasma {
  color: var(--crema-100);
  border-color: rgba(247, 245, 241, 0.35);
  background: transparent;
}
.btn-fantasma:hover { border-color: var(--crema-100); background: rgba(247, 245, 241, 0.08); }

.btn-oscuro {
  color: var(--crema-100);
  border-color: rgba(10, 10, 11, 0.25);
  background: transparent;
}
.btn-oscuro:hover { background: var(--negro-950); }
.tema-claro .btn-fantasma { color: var(--tinta); border-color: rgba(23,23,26,.3); }
.tema-claro .btn-fantasma:hover { border-color: var(--tinta); background: rgba(23,23,26,.06); }

/* ---------- Header ---------- */
.encabezado {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  transition: height var(--transicion), background var(--transicion), box-shadow var(--transicion), border-color var(--transicion);
  border-bottom: 1px solid transparent;
}
.encabezado::before {
  content: "";
  position: absolute; inset: 0;
  background: rgba(10,10,11,0.0);
  backdrop-filter: blur(0px);
  transition: background var(--transicion), backdrop-filter var(--transicion);
  z-index: -1;
}
.encabezado.encabezado--flotante::before {
  background: rgba(10, 10, 11, 0.82);
  backdrop-filter: blur(14px) saturate(140%);
}
.encabezado.encabezado--flotante { height: 68px; border-color: var(--linea-oscura); }

.encabezado .contenedor {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1280px, 100% - 2.5rem);
}

.marca { display: flex; align-items: center; gap: .65rem; }
.marca img { height: 46px; width: auto; transition: height var(--transicion); }
.encabezado--flotante .marca img { height: 38px; }

.nav-principal { display: flex; align-items: center; gap: 2.1rem; }
.nav-principal a {
  font-family: var(--f-display);
  font-size: .92rem;
  font-weight: 500;
  letter-spacing: .05em;
  text-transform: uppercase;
  color: var(--crema-100);
  position: relative;
  padding-block: .3rem;
}
.nav-principal a::after {
  content: "";
  position: absolute; left: 0; right: 100%; bottom: 0;
  height: 2px; background: var(--rojo-500);
  transition: right var(--transicion);
}
.nav-principal a:hover::after, .nav-principal a.activo::after { right: 0; }
.nav-principal a.activo { color: var(--rojo-400); }

.acciones-header { display: flex; align-items: center; gap: 1rem; }

.boton-menu {
  display: none;
  width: 44px; height: 44px;
  border: none; background: transparent;
  position: relative;
  z-index: 210;
}
.boton-menu span, .boton-menu span::before, .boton-menu span::after {
  content: ""; position: absolute; left: 10px; right: 10px; height: 2px;
  background: var(--crema-100); transition: transform var(--transicion), opacity var(--transicion), top var(--transicion);
}
.boton-menu span { top: 21px; }
.boton-menu span::before { top: -8px; }
.boton-menu span::after { top: 8px; }
.menu-abierto .boton-menu span { background: transparent; }
.menu-abierto .boton-menu span::before { top: 0; transform: rotate(45deg); background: #fff; }
.menu-abierto .boton-menu span::after { top: 0; transform: rotate(-45deg); background: #fff; }

/* ---------- Nav móvil overlay ---------- */
.nav-overlay {
  position: fixed; inset: 0; z-index: 200;
  background: var(--negro-950);
  display: flex; flex-direction: column; justify-content: center;
  padding: 2rem;
  opacity: 0; visibility: hidden;
  transition: opacity var(--transicion), visibility var(--transicion);
}
.menu-abierto .nav-overlay { opacity: 1; visibility: visible; }
.nav-overlay ul { display: flex; flex-direction: column; gap: 1.1rem; }
.nav-overlay a {
  font-family: var(--f-display);
  font-size: clamp(1.9rem, 8vw, 3rem);
  text-transform: uppercase;
  color: var(--crema-100);
  opacity: 0; transform: translateY(16px);
  transition: opacity .5s ease, transform .5s ease;
  display: inline-block;
}
.menu-abierto .nav-overlay a { opacity: 1; transform: translateY(0); }
.nav-overlay li:nth-child(1) a { transition-delay: .05s; }
.nav-overlay li:nth-child(2) a { transition-delay: .1s; }
.nav-overlay li:nth-child(3) a { transition-delay: .15s; }
.nav-overlay li:nth-child(4) a { transition-delay: .2s; }
.nav-overlay li:nth-child(5) a { transition-delay: .25s; }
.nav-overlay .nav-overlay-contacto { margin-top: 1.5rem; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex; align-items: center;
  background: var(--negro-950);
  color: var(--crema-100);
  overflow: hidden;
  padding-top: var(--header-h);
}
.hero__fondo {
  position: absolute; inset: 0; z-index: 0;
  background:
    radial-gradient(ellipse 70% 55% at 78% 18%, rgba(252,51,50,.18), transparent 60%),
    repeating-linear-gradient(115deg, rgba(255,255,255,.035) 0 2px, transparent 2px 64px);
  mask-image: linear-gradient(to bottom, black, transparent 95%);
}
.hero__lineas {
  position: absolute; inset: 0; z-index: 0; opacity: .5;
  background-image: repeating-linear-gradient(90deg, transparent 0 118px, rgba(255,255,255,.05) 118px 119px);
}
.hero .contenedor {
  position: relative; z-index: 1;
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  align-items: center;
  gap: 2rem;
  padding-block: 3rem;
}
.hero__etiqueta {
  font-family: var(--f-firma);
  color: var(--rojo-400);
  font-size: 1.5rem;
  display: inline-block;
  margin-bottom: .4rem;
}
.hero__titulo {
  font-size: clamp(2.6rem, 6.2vw, 4.7rem);
  overflow: hidden;
}
.hero__titulo span {
  display: block;
  transform: translateY(110%);
  animation: subir-titulo .9s cubic-bezier(.22,1,.36,1) forwards;
}
.hero__titulo span:nth-child(1) { animation-delay: .05s; }
.hero__titulo span:nth-child(2) { animation-delay: .16s; color: var(--rojo-500); }
@keyframes subir-titulo { to { transform: translateY(0); } }

.hero__texto {
  margin-top: 1.4rem;
  max-width: 46ch;
  color: var(--gris-500);
  font-size: 1.08rem;
  opacity: 0;
  animation: aparecer .8s ease .5s forwards;
}
.hero__acciones {
  margin-top: 2.2rem;
  display: flex; gap: 1rem; flex-wrap: wrap;
  opacity: 0;
  animation: aparecer .8s ease .65s forwards;
}
@keyframes aparecer { to { opacity: 1; } }

.hero__grafico {
  position: relative;
  display: flex; align-items: center; justify-content: center;
}
.hero__grafico img {
  width: 100%; max-width: 560px;
  filter: drop-shadow(0 30px 40px rgba(0,0,0,.55));
  opacity: 0;
  animation: entrada-logo 1.1s cubic-bezier(.22,1,.36,1) .3s forwards;
}
@keyframes entrada-logo {
  from { opacity: 0; transform: scale(.92) translateX(18px); }
  to { opacity: 1; transform: scale(1) translateX(0); }
}

.hero__scroll {
  position: absolute; bottom: 2rem; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: .5rem;
  color: var(--gris-500); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase;
  font-family: var(--f-display);
}
.hero__scroll::after {
  content: ""; width: 1px; height: 34px; background: linear-gradient(var(--rojo-500), transparent);
  animation: bajar 1.8s ease-in-out infinite;
}
@keyframes bajar { 0% { transform: scaleY(0); transform-origin: top; } 50% { transform: scaleY(1); transform-origin: top; } 50.01% { transform-origin: bottom; } 100% { transform: scaleY(0); transform-origin: bottom; } }

/* ---------- Ticker / franja de velocidad ---------- */
.ticker {
  background: var(--rojo-500);
  color: #fff;
  overflow: hidden;
  white-space: nowrap;
  border-block: 1px solid rgba(0,0,0,.15);
}
.ticker__pista {
  display: inline-flex;
  animation: desplazar-ticker 26s linear infinite;
}
.ticker__pista span {
  font-family: var(--f-display);
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  font-size: .95rem;
  padding-inline: 1.2rem;
  display: inline-flex;
  align-items: center;
  gap: 1.2rem;
}
.ticker__pista span::after { content: "◆"; font-size: .6rem; opacity: .7; }
@keyframes desplazar-ticker { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ---------- Secciones genéricas ---------- */
.seccion { padding-block: clamp(4rem, 9vw, 7.5rem); }
.seccion--oscura { background: var(--negro-950); color: var(--crema-100); }
.seccion--cremosa { background: var(--crema-200); }

.encabezado-seccion { max-width: 62ch; margin-bottom: 3rem; }
.encabezado-seccion .kicker {
  font-family: var(--f-display);
  color: var(--rojo-500);
  font-size: .82rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  display: flex; align-items: center; gap: .6rem;
  margin-bottom: .8rem;
}
.encabezado-seccion .kicker::before { content: ""; width: 28px; height: 2px; background: var(--rojo-500); }
.encabezado-seccion h2 { font-size: clamp(1.9rem, 4vw, 2.9rem); }
.encabezado-seccion p { margin-top: 1rem; color: var(--gris-500); font-size: 1.05rem; }
.seccion--cremosa .encabezado-seccion p { color: var(--gris-700); }

/* revelado al hacer scroll (solo si JS confirma que puede animarlo: ver .js en <html>) */
.js .revelar { opacity: 0; transform: translateY(28px); transition: opacity .8s cubic-bezier(.22,1,.36,1), transform .8s cubic-bezier(.22,1,.36,1); }
.js .revelar.visible { opacity: 1; transform: translateY(0); }
.revelar-grupo > * { transition-delay: calc(var(--i, 0) * 90ms); }

/* ---------- Tarjetas de valor ---------- */
.grilla-valores {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.1rem;
}
.tarjeta-valor {
  background: var(--negro-900);
  border: 1px solid var(--linea-oscura);
  border-radius: var(--radio-lg);
  padding: 2rem 1.6rem;
  position: relative;
  overflow: hidden;
  transition: transform var(--transicion), border-color var(--transicion);
}
.tarjeta-valor::before {
  content: "";
  position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: var(--rojo-500);
  transform: scaleY(0); transform-origin: bottom;
  transition: transform var(--transicion);
}
.tarjeta-valor:hover { transform: translateY(-6px); border-color: rgba(255,255,255,.2); }
.tarjeta-valor:hover::before { transform: scaleY(1); }
.tarjeta-valor .num {
  font-family: var(--f-display); color: var(--rojo-500);
  font-size: .85rem; letter-spacing: .1em;
}
.tarjeta-valor h3 { font-size: 1.15rem; margin-block: .8rem .6rem; color: #fff; }
.tarjeta-valor p { color: var(--gris-500); font-size: .95rem; }

/* ---------- Pasos (cómo funciona) ---------- */
.pasos {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  counter-reset: paso;
  position: relative;
}
.pasos::before {
  content: "";
  position: absolute; top: 28px; left: 6%; right: 6%; height: 1px;
  background: repeating-linear-gradient(90deg, var(--gris-700) 0 8px, transparent 8px 16px);
  z-index: 0;
}
.paso { position: relative; z-index: 1; }
.paso .circulo {
  width: 58px; height: 58px; border-radius: 50%;
  background: var(--crema-100);
  color: var(--negro-950);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--f-display); font-size: 1.3rem; font-weight: 700;
  margin-bottom: 1.2rem;
  border: 3px solid var(--negro-950);
  outline: 3px solid var(--rojo-500);
}
.paso h3 { font-size: 1.05rem; color: #fff; margin-bottom: .5rem; }
.paso p { color: var(--gris-500); font-size: .93rem; }

/* ---------- Franja CTA usados ---------- */
.franja-cta {
  position: relative;
  border-radius: var(--radio-lg);
  background: linear-gradient(120deg, var(--rojo-600), var(--rojo-500) 60%, var(--rojo-700));
  color: #fff;
  padding: clamp(2.2rem, 5vw, 4rem);
  display: flex; align-items: center; justify-content: space-between; gap: 2rem; flex-wrap: wrap;
  overflow: hidden;
}
.franja-cta::after {
  content: "";
  position: absolute; inset: 0;
  background: repeating-linear-gradient(60deg, rgba(255,255,255,.06) 0 2px, transparent 2px 22px);
  pointer-events: none;
}
.franja-cta h2 { font-size: clamp(1.6rem, 3.4vw, 2.4rem); max-width: 20ch; }
.franja-cta .btn-oscuro { border-color: rgba(255,255,255,.5); color: #fff; }
.franja-cta .btn-oscuro:hover { background: rgba(0,0,0,.18); }

/* ---------- Nosotros / dos columnas ---------- */
.dos-columnas {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
}
.marco-firma {
  font-family: var(--f-firma);
  font-size: 1.6rem;
  color: var(--rojo-500);
}
.lista-valores { margin-top: 1.6rem; display: grid; gap: 1rem; }
.lista-valores li { display: flex; gap: .9rem; align-items: flex-start; }
.lista-valores li::before {
  content: "";
  flex: none; width: 10px; height: 10px; margin-top: .35rem;
  background: var(--rojo-500); transform: rotate(45deg);
}
.lista-valores b { display: block; font-family: var(--f-display); text-transform: uppercase; font-size: .95rem; letter-spacing: .03em; }
.lista-valores span { color: var(--gris-700); font-size: .93rem; }

.panel-grafico {
  background: var(--negro-950);
  border-radius: var(--radio-lg);
  padding: 3rem 2rem;
  display: flex; align-items: center; justify-content: center;
  aspect-ratio: 4/3.2;
  position: relative;
  overflow: hidden;
}
.panel-grafico img { width: 100%; max-width: 380px; }
.panel-grafico::before {
  content: "";
  position: absolute; inset: 0;
  background: repeating-linear-gradient(115deg, rgba(255,255,255,.035) 0 2px, transparent 2px 64px);
}
.texto-fantasma {
  position: relative; z-index: 1;
  font-family: var(--f-display);
  font-size: clamp(2.4rem, 8vw, 4.2rem);
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(255,255,255,.55);
  text-align: center;
  text-transform: uppercase;
  line-height: 1;
}
.texto-fantasma b {
  -webkit-text-stroke: 0;
  color: var(--rojo-500);
  display: block;
  font-weight: 600;
}

.dos-columnas--invertido > *:first-child { order: 2; }
.dos-columnas--invertido > *:last-child { order: 1; }
@media (max-width: 980px) {
  .dos-columnas--invertido > *:first-child { order: -1; }
}

/* ---------- FAQ acordeón ---------- */
.faq { display: grid; gap: .8rem; max-width: 780px; }
.faq-item {
  border: 1px solid var(--linea-oscura);
  border-radius: var(--radio);
  background: var(--negro-900);
  overflow: hidden;
}
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 1.2rem 1.4rem;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  font-family: var(--f-display);
  text-transform: uppercase;
  font-size: .98rem;
  letter-spacing: .02em;
  color: #fff;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  font-size: 1.4rem; color: var(--rojo-500);
  transition: transform var(--transicion);
  flex: none;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item .faq-respuesta {
  padding: 0 1.4rem 1.3rem;
  color: var(--gris-500);
  font-size: .95rem;
  max-width: 68ch;
}

/* ---------- Usados (Crileo) ---------- */
.marco-usados {
  position: relative;
  border-radius: var(--radio-lg);
  overflow: hidden;
  background: var(--negro-900);
  border: 1px solid var(--linea-oscura);
  min-height: 78vh;
}
.marco-usados iframe {
  width: 100%; height: 100%; min-height: 78vh;
  border: 0; position: relative; z-index: 1;
  background: #fff;
}
.marco-usados__cargando {
  position: absolute; inset: 0; z-index: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 1rem; color: var(--gris-500);
  font-family: var(--f-display); text-transform: uppercase; letter-spacing: .1em; font-size: .85rem;
}
.spinner {
  width: 34px; height: 34px; border-radius: 50%;
  border: 3px solid var(--negro-700); border-top-color: var(--rojo-500);
  animation: girar 0.8s linear infinite;
}
@keyframes girar { to { transform: rotate(360deg); } }

/* ---------- Formulario de contacto ---------- */
.form-contacto { display: grid; gap: 1.2rem; }
.fila-campos { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; }
.campo { display: grid; gap: .5rem; }
.campo label {
  font-family: var(--f-display); text-transform: uppercase; font-size: .78rem; letter-spacing: .08em;
  color: var(--gris-500);
}
.campo input, .campo select, .campo textarea {
  background: var(--negro-900);
  border: 1px solid var(--linea-oscura);
  border-radius: var(--radio);
  padding: .9rem 1rem;
  color: var(--crema-100);
  transition: border-color var(--transicion), background var(--transicion);
}
.campo input:focus, .campo select:focus, .campo textarea:focus {
  outline: none; border-color: var(--rojo-500); background: var(--negro-800);
}
.campo textarea { resize: vertical; min-height: 130px; }
.campo-honeypot { position: absolute; left: -9999px; opacity: 0; height: 0; }

.alerta { padding: 1rem 1.2rem; border-radius: var(--radio); font-size: .92rem; }
.alerta--ok { background: rgba(60, 180, 100, .12); border: 1px solid rgba(60,180,100,.4); color: #7fe0a4; }
.alerta--error { background: rgba(252,51,50,.1); border: 1px solid rgba(252,51,50,.4); color: var(--rojo-400); }

.tarjetas-contacto { display: grid; gap: 1rem; }
.tarjeta-contacto {
  border: 1px solid var(--linea-oscura);
  border-radius: var(--radio-lg);
  padding: 1.5rem;
  display: flex; gap: 1rem; align-items: flex-start;
}
.tarjeta-contacto svg { flex: none; width: 22px; height: 22px; color: var(--rojo-500); margin-top: .15rem; }
.tarjeta-contacto b { display: block; font-family: var(--f-display); text-transform: uppercase; font-size: .85rem; letter-spacing: .05em; margin-bottom: .2rem; }
.tarjeta-contacto span, .tarjeta-contacto a { color: var(--gris-500); font-size: .93rem; }

/* ---------- WhatsApp flotante ---------- */
.wa-flotante {
  position: fixed; right: 1.4rem; bottom: 1.4rem; z-index: 90;
  width: 58px; height: 58px; border-radius: 50%;
  background: #25D366;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 12px 26px -8px rgba(0,0,0,.45);
}
.wa-flotante svg { width: 28px; height: 28px; fill: #fff; }
.wa-flotante::before {
  content: ""; position: absolute; inset: 0; border-radius: 50%;
  border: 2px solid #25D366; animation: pulso-wa 2.4s ease-out infinite;
}
@keyframes pulso-wa { 0% { transform: scale(1); opacity: .7; } 100% { transform: scale(1.7); opacity: 0; } }

/* ---------- Footer ---------- */
.pie {
  background: var(--negro-950);
  color: var(--gris-500);
  position: relative;
  overflow: hidden;
  padding-top: 4rem;
}
.pie__marca {
  font-family: var(--f-display);
  font-size: clamp(3rem, 13vw, 9rem);
  color: transparent;
  -webkit-text-stroke: 1px rgba(255,255,255,.08);
  text-align: center;
  line-height: 1;
  margin-bottom: -0.12em;
  user-select: none;
}
.pie__grilla {
  border-top: 1px solid var(--linea-oscura);
  padding-block: 2.5rem;
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 2rem;
}
.pie__grilla h4 { color: var(--crema-100); font-size: .85rem; letter-spacing: .1em; margin-bottom: 1rem; }
.pie__grilla ul { display: grid; gap: .6rem; font-size: .93rem; }
.pie__grilla a:hover { color: var(--rojo-400); }
.pie__redes { display: flex; gap: .8rem; margin-top: 1.2rem; }
.pie__redes a {
  width: 38px; height: 38px; border-radius: 50%;
  border: 1px solid var(--linea-oscura);
  display: flex; align-items: center; justify-content: center;
  transition: border-color var(--transicion), background var(--transicion);
}
.pie__redes a:hover { border-color: var(--rojo-500); background: rgba(252,51,50,.1); }
.pie__redes svg { width: 17px; height: 17px; }
.pie__base {
  border-top: 1px solid var(--linea-oscura);
  padding-block: 1.4rem;
  font-size: .82rem;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: .6rem;
}

/* ---------- Utilidades ---------- */
.franja-aviso {
  background: var(--negro-800);
  color: var(--gris-500);
  font-size: .85rem;
  text-align: center;
  padding: .6rem 1rem;
}
.franja-aviso b { color: var(--rojo-400); }

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 980px) {
  .nav-principal, .acciones-header .btn { display: none; }
  .boton-menu { display: block; }
  .hero .contenedor { grid-template-columns: 1fr; text-align: left; }
  .hero__grafico { order: -1; max-width: 320px; margin-inline: auto; }
  .grilla-valores { grid-template-columns: repeat(2, 1fr); }
  .pasos { grid-template-columns: repeat(2, 1fr); row-gap: 2.4rem; }
  .pasos::before { display: none; }
  .dos-columnas { grid-template-columns: 1fr; }
  .panel-grafico { order: -1; max-width: 340px; margin-inline: auto; }
  .pie__grilla { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  :root { --header-h: 72px; }
  .contenedor { width: min(680px, 100% - 2rem); }
  .grilla-valores { grid-template-columns: 1fr; }
  .pasos { grid-template-columns: 1fr; }
  .fila-campos { grid-template-columns: 1fr; }
  .franja-cta { flex-direction: column; align-items: flex-start; text-align: left; }
  .pie__grilla { grid-template-columns: 1fr; }
  .pie__base { flex-direction: column; }
  .marco-usados, .marco-usados iframe { min-height: 70vh; }
}