/* ==========================================================================
   TOPITECH · Hoja de estilos principal
   Enfoque mobile-first: los estilos base son para móvil y las
   media queries (min-width) amplían para tablet y escritorio.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. VARIABLES DE MARCA (colores sacados del logo)
   Cambie aquí un color y se actualizará en toda la web.
   -------------------------------------------------------------------------- */
:root {
  /* Colores */
  --color-navy: #1B3A6B;        /* Azul marino principal: textos y titulares */
  --color-blue: #1E5BB8;        /* Azul medio */
  --color-cyan: #22D3EE;        /* Turquesa de acento */
  --color-cyan-dark: #0E7490;   /* Turquesa oscuro: para texto pequeño con buen contraste */
  --color-text: #5B6475;        /* Gris de texto secundario */
  --color-white: #FFFFFF;
  --color-bg-alt: #F4F6FA;      /* Gris muy claro de fondo */
  --color-border: #E3E8F0;
  --color-whatsapp: #25D366;
  --color-whatsapp-dark: #128C4B;

  /* Degradado de marca */
  --gradient-brand: linear-gradient(135deg, var(--color-blue) 0%, var(--color-cyan) 100%);
  /* Variante del botón: el texto blanco se apoya sobre la zona azul */
  --gradient-button: linear-gradient(120deg, var(--color-blue) 0%, #1A8BD0 60%, var(--color-cyan) 130%);

  /* Tipografías */
  --font-heading: "Montserrat", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", monospace;

  /* Espaciado, radios y sombras */
  --container: 1160px;
  --gutter: 1.25rem;
  --section-space: 4.5rem;
  --radius: 12px;
  --radius-sm: 8px;
  /* Esquinas cortadas en diagonal, como las facetas del logo */
  --cut: 12px;
  --cut-shape: polygon(var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut));
  --cut-sm-shape: polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
  /* Cuadrícula técnica de fondo */
  --grid-line: rgba(30, 91, 184, 0.07);
  --grid-size: 44px;
  --shadow-sm: 0 2px 8px rgba(27, 58, 107, 0.06);
  --shadow-md: 0 10px 30px rgba(27, 58, 107, 0.10);
  --shadow-lg: 0 20px 50px rgba(27, 58, 107, 0.16);

  --header-height: 68px;
  --transition: 0.3s cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* --------------------------------------------------------------------------
   2. RESET Y BASE
   -------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  /* Evita que el encabezado fijo tape el título al navegar por anclas */
  scroll-padding-top: calc(var(--header-height) + 12px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3 {
  font-family: var(--font-heading);
  color: var(--color-navy);
  line-height: 1.2;
  margin: 0 0 0.75rem;
  font-weight: 800;
  letter-spacing: -0.01em;
}
h3 { font-weight: 700; font-size: 1.15rem; }

p { margin: 0 0 1rem; }
img, svg { display: block; max-width: 100%; }
a { color: var(--color-blue); }
ul, ol { margin: 0; padding: 0; list-style: none; }

/* Foco visible para navegación con teclado */
:focus-visible {
  outline: 3px solid var(--color-cyan);
  outline-offset: 3px;
  border-radius: 4px;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.container--narrow { max-width: 820px; }

/* Oculto visualmente pero accesible */
.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* Sprite de iconos: fuera de la vista pero "renderizable" (necesario para los degradados) */
.svg-sprite { position: absolute; width: 0; height: 0; overflow: hidden; }

/* Enlace "Saltar al contenido" */
.skip-link {
  position: absolute;
  left: 1rem; top: -100px;
  z-index: 1000;
  padding: 0.75rem 1rem;
  background: var(--color-navy);
  color: #fff;
  border-radius: var(--radius-sm);
  font-weight: 600;
}
.skip-link:focus { top: 1rem; }

.text-gradient {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Cuadrícula técnica reutilizable (fondo de secciones) */
.tech-grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: var(--grid-size) var(--grid-size);
}

/* --------------------------------------------------------------------------
   3. BOTONES
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 48px;
  padding: 0.8rem 1.5rem;
  position: relative;
  overflow: hidden;
  border: 0;
  border-radius: 0;
  /* Esquinas cortadas: superior izquierda e inferior derecha */
  clip-path: var(--cut-sm-shape);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.98rem;
  text-decoration: none;
  cursor: pointer;
  transition: transform var(--transition), filter var(--transition), background-color var(--transition), color var(--transition);
}
/* Destello que recorre el botón al pasar el ratón */
.btn::after {
  content: "";
  position: absolute;
  top: 0; bottom: 0; left: -60%;
  width: 40%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.45), transparent);
  transform: skewX(-25deg);
  transition: left 0.6s ease;
  pointer-events: none;
}
.btn:hover::after { left: 130%; }
/* El recorte de esquinas ocultaría el contorno de foco: se dibuja por dentro */
.btn:focus-visible {
  outline: none;
  box-shadow: inset 0 0 0 3px var(--color-navy), inset 0 0 0 5px #fff;
}
.btn__icon { width: 18px; height: 18px; flex-shrink: 0; transition: transform var(--transition); }
.btn:hover .btn__icon { transform: translate(2px, -2px); }

.btn--primary {
  background: var(--gradient-button);
  color: #fff;
}
.btn--primary:hover { transform: translateY(-2px); filter: brightness(1.08) saturate(1.1); }

/* Botón secundario: relleno suave (el borde no seguiría las esquinas cortadas) */
.btn--ghost {
  background: rgba(30, 91, 184, 0.08);
  color: var(--color-navy);
}
.btn--ghost:hover { background: rgba(30, 91, 184, 0.14); color: var(--color-blue); }

.btn--light { background: #fff; color: var(--color-navy); }
.btn--light:hover { transform: translateY(-2px); }

.btn--whatsapp {
  background: var(--color-whatsapp-dark);
  color: #fff;
}
.btn--whatsapp:hover { background: #0F7A40; transform: translateY(-2px); }

.btn--sm { min-height: 40px; padding: 0.5rem 1.15rem; font-size: 0.9rem; }
.btn--block { width: 100%; }

/* --------------------------------------------------------------------------
   4. ENCABEZADO FIJO
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--header-height);
  background: transparent;
  transition: background-color var(--transition), box-shadow var(--transition);
}
/* Estado tras hacer scroll (lo añade main.js) */
.site-header.is-scrolled,
.site-header.menu-open {
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 4px 20px rgba(27, 58, 107, 0.08);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}
/* Fina línea luminosa bajo el encabezado */
.site-header::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-cyan) 30%, var(--color-blue) 70%, transparent);
  opacity: 0;
  transition: opacity var(--transition);
}
.site-header.is-scrolled::after { opacity: 0.7; }

.header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logotipo recreado en CSS */
.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  text-decoration: none;
}
.wordmark__icon { width: 34px; height: auto; }
.wordmark__text {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.4rem;
  letter-spacing: 0.01em;
  color: var(--color-navy);
}
.wordmark__text--xl { font-size: clamp(1.9rem, 4.6vw, 2.7rem); line-height: 1.05; }
.wordmark__accent {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Botón hamburguesa (solo móvil) */
.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px; height: 44px;
  padding: 10px;
  background: none;
  border: 0;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  height: 2.5px;
  background: var(--color-navy);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* Menú en móvil: panel desplegable */
.main-nav {
  position: fixed;
  top: var(--header-height);
  left: 0; right: 0;
  background: #fff;
  box-shadow: var(--shadow-md);
  padding: 1rem var(--gutter) 1.5rem;
  transform: translateY(-8px);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
}
.main-nav.is-open { opacity: 1; transform: none; visibility: visible; }
.main-nav ul { display: flex; flex-direction: column; gap: 0.25rem; }
.main-nav a:not(.btn) {
  display: block;
  padding: 0.75rem 0.25rem;
  color: var(--color-navy);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid var(--color-border);
}
.main-nav .btn { margin-top: 0.75rem; width: 100%; }

/* --------------------------------------------------------------------------
   5. HERO
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--header-height) + 2.5rem) 0 4rem;
  background:
    radial-gradient(ellipse at 85% 10%, rgba(34, 211, 238, 0.16), transparent 55%),
    radial-gradient(ellipse at 0% 90%, rgba(30, 91, 184, 0.10), transparent 50%),
    linear-gradient(180deg, #FFFFFF 0%, var(--color-bg-alt) 100%);
}
/* Cuadrícula del hero: se desvanece hacia los bordes */
.hero .tech-grid {
  -webkit-mask-image: radial-gradient(ellipse 70% 80% at 70% 40%, #000 20%, transparent 75%);
  mask-image: radial-gradient(ellipse 70% 80% at 70% 40%, #000 20%, transparent 75%);
}
/* Haz de luz diagonal, como la estela de la flecha del logo */
.hero__beam {
  position: absolute;
  top: -20%; right: 8%;
  width: 2px; height: 140%;
  background: linear-gradient(180deg, transparent, rgba(34, 211, 238, 0.55) 45%, rgba(30, 91, 184, 0.35) 60%, transparent);
  transform: rotate(38deg);
  transform-origin: top;
  pointer-events: none;
  box-shadow: 0 0 18px rgba(34, 211, 238, 0.45);
}
/* Red de nodos animada (la dibuja main.js en un <canvas>) */
.hero__network {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  opacity: 0.3;  /* en móvil, más tenue para no competir con el texto */
  -webkit-mask-image: linear-gradient(180deg, transparent 0%, #000 45%);
  mask-image: linear-gradient(180deg, transparent 0%, #000 45%);
}

.hero__grid {
  position: relative;
  display: grid;
  gap: 3rem;
  align-items: center;
}
/* Evita que el contenido ensanche las columnas de la rejilla */
.hero__content, .hero__visual { min-width: 0; }

/* Etiqueta tipo "estado del sistema" */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.4rem 0.9rem;
  margin-bottom: 1.25rem;
  clip-path: var(--cut-sm-shape);
  background: rgba(34, 211, 238, 0.12);
  border-left: 2px solid var(--color-cyan);
  color: var(--color-navy);
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.eyebrow__dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--color-cyan);
  box-shadow: 0 0 0 0 rgba(34, 211, 238, 0.6);
  animation: ping 2s ease-out infinite;
}
/* Cursor parpadeante de terminal */
.eyebrow__cursor {
  width: 7px; height: 0.95em;
  background: var(--color-blue);
  animation: blink 1.1s steps(1) infinite;
}
@keyframes ping {
  0% { box-shadow: 0 0 0 0 rgba(34, 211, 238, 0.6); }
  100% { box-shadow: 0 0 0 8px rgba(34, 211, 238, 0); }
}
@keyframes blink { 50% { opacity: 0; } }

.hero__title {
  font-size: clamp(2.05rem, 7vw, 3.6rem);
  line-height: 1.1;
  margin-bottom: 1.25rem;
}
.hero__subtitle {
  font-size: 1.08rem;
  max-width: 36rem;
  margin-bottom: 2rem;
}
.hero__actions {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-bottom: 1.75rem;
}
.hero__trust { display: flex; flex-wrap: wrap; gap: 0.5rem 1.5rem; font-size: 0.92rem; }
.hero__trust li { display: flex; align-items: center; gap: 0.4rem; }
.hero__trust svg { width: 18px; height: 18px; color: var(--color-cyan-dark); }
.hero__title .text-gradient {
  background: linear-gradient(110deg, var(--color-blue) 0%, var(--color-cyan) 45%, var(--color-blue) 90%);
  background-size: 200% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  animation: shimmer 8s ease-in-out infinite;
}
@keyframes shimmer {
  0%, 100% { background-position: 0% 0; }
  50% { background-position: 100% 0; }
}

/* Tarjeta del logo: símbolo real + nombre y eslogan */
.hero__visual { position: relative; padding: 1.5rem 0.5rem; }
.logo-card {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(0.75rem, 3vw, 1.25rem);
  padding: clamp(2rem, 6vw, 3.25rem) clamp(1.25rem, 4vw, 2.5rem);
  background: rgba(255, 255, 255, 0.78);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-radius: 20px;
  box-shadow: var(--shadow-lg), 0 0 60px rgba(34, 211, 238, 0.18);
  overflow: hidden;
}
/* Borde de luz que gira alrededor de la tarjeta */
@property --angle {
  syntax: "<angle>";
  initial-value: 0deg;
  inherits: false;
}
.logo-card::before {
  content: "";
  position: absolute;
  inset: 0;
  padding: 2px;
  border-radius: inherit;
  background: conic-gradient(from var(--angle), rgba(30, 91, 184, 0.15) 0 55%, var(--color-cyan) 75%, var(--color-blue) 90%, rgba(30, 91, 184, 0.15));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  animation: spin-border 6s linear infinite;
  pointer-events: none;
}
/* Destello que cruza la tarjeta, como el brillo del símbolo */
.logo-card::after {
  content: "";
  position: absolute;
  top: -50%; left: -60%;
  width: 35%; height: 200%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.85), transparent);
  transform: rotate(25deg);
  animation: glare 7s ease-in-out infinite;
  pointer-events: none;
}
@keyframes spin-border { to { --angle: 360deg; } }
@keyframes glare {
  0%, 60% { left: -60%; }
  85%, 100% { left: 140%; }
}
.logo-card__mark {
  width: clamp(72px, 16vw, 108px);
  height: auto;
  flex-shrink: 0;
  filter: drop-shadow(0 6px 16px rgba(34, 211, 238, 0.35));
}
.logo-card__words { display: flex; flex-direction: column; gap: 0.2rem; }
.logo-card__tagline {
  font-size: clamp(0.62rem, 1.6vw, 0.8rem);
  font-weight: 600;
  letter-spacing: 0.3em;
  color: var(--color-text);
  padding-left: 0.15em;
}

/* Tarjetas flotantes */
.float-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  z-index: 2;
  padding: 0.6rem 0.95rem;
  background: rgba(255, 255, 255, 0.9);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(34, 211, 238, 0.35);
  border-radius: 8px;
  box-shadow: var(--shadow-md);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 500;
  color: var(--color-navy);
  white-space: nowrap;
  animation: float 6s ease-in-out infinite;
}
.float-card svg { width: 16px; height: 16px; color: var(--color-blue); }
.float-card__dot {
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--color-whatsapp);
  box-shadow: 0 0 0 4px rgba(37, 211, 102, 0.2);
}
.float-card--1 { top: 0; left: 0; }
.float-card--2 { bottom: 0; right: 0; animation-delay: -3s; }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* --------------------------------------------------------------------------
   6. SECCIONES GENÉRICAS
   -------------------------------------------------------------------------- */
.section { position: relative; padding: var(--section-space) 0; }
.section--alt { background: var(--color-bg-alt); }

.section__header { max-width: 680px; margin: 0 auto 2.75rem; text-align: center; }
/* Etiqueta de sección con aspecto de comentario de código: // SERVICIOS */
.section__kicker {
  display: inline-block;
  margin-bottom: 0.6rem;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-cyan-dark);
}
.section__kicker::before { content: "// "; color: var(--color-blue); opacity: 0.7; }
.section__kicker--light::before { color: var(--color-cyan); }
.section__title { font-size: clamp(1.7rem, 4.5vw, 2.5rem); }
.section__lead { font-size: 1.05rem; }

/* Rejillas */
.grid { display: grid; gap: 1.25rem; }

/* Caja de icono con degradado de marca */
.icon-box {
  display: inline-grid;
  place-items: center;
  width: 54px; height: 54px;
  clip-path: var(--cut-sm-shape);
  background: var(--gradient-brand);
  color: #fff;
  margin-bottom: 1.1rem;
}
.icon-box svg { width: 26px; height: 26px; }
.icon-box--soft { background: rgba(34, 211, 238, 0.14); color: var(--color-blue); box-shadow: none; }
.icon-box--sm { width: 40px; height: 40px; margin: 0; }
.icon-box--sm svg { width: 20px; height: 20px; }

/* --------------------------------------------------------------------------
   7. PROBLEMAS
   -------------------------------------------------------------------------- */
.problem-card {
  padding: 1.75rem;
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}
.problem-card p { margin: 0; }
#problemas, #proceso { overflow: hidden; }
/* Cuadrícula muy sutil, visible solo en el centro de la sección */
.section--alt .tech-grid {
  -webkit-mask-image: radial-gradient(ellipse 60% 70% at 50% 40%, #000, transparent 80%);
  mask-image: radial-gradient(ellipse 60% 70% at 50% 40%, #000, transparent 80%);
}
#problemas .container, #proceso .container { position: relative; }

/* --------------------------------------------------------------------------
   8. SERVICIOS
   -------------------------------------------------------------------------- */
.service-card {
  position: relative;
  padding: 1.9rem 1.75rem;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
/* Borde de luz degradado que aparece al pasar el ratón */
.service-card::before {
  content: "";
  position: absolute;
  inset: -1px;
  padding: 1.5px;
  border-radius: inherit;
  background: linear-gradient(135deg, var(--color-blue), var(--color-cyan) 50%, transparent 80%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg), 0 10px 40px rgba(34, 211, 238, 0.16);
  border-color: transparent;
}
.service-card:hover::before { opacity: 1; }
.service-card p { margin: 0; }
.service-card__arrow {
  position: absolute;
  top: 1.6rem; right: 1.5rem;
  width: 22px; height: 22px;
  color: var(--color-border);
  transition: color var(--transition), transform var(--transition);
}
.service-card:hover .service-card__arrow { color: var(--color-cyan-dark); transform: translate(3px, -3px); }

.service-card--cta {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  background:
    linear-gradient(rgba(34, 211, 238, 0.08) 1px, transparent 1px) 0 0 / 22px 22px,
    linear-gradient(90deg, rgba(34, 211, 238, 0.08) 1px, transparent 1px) 0 0 / 22px 22px,
    var(--color-navy);
  border-color: var(--color-navy);
  color: rgba(255, 255, 255, 0.85);
}
.service-card--cta::after {
  content: "";
  position: absolute;
  right: -40px; top: -40px;
  width: 160px; height: 160px;
  border-radius: 50%;
  background: var(--gradient-brand);
  opacity: 0.35;
  filter: blur(10px);
}
.service-card--cta h3, .service-card--cta p, .service-card--cta .btn { position: relative; z-index: 1; }
.service-card--cta h3 { color: #fff; }
.service-card--cta p { margin-bottom: 1.25rem; }

/* --------------------------------------------------------------------------
   9. CÓMO TRABAJAMOS (pasos)
   -------------------------------------------------------------------------- */
.steps {
  display: grid;
  gap: 1.25rem;
  counter-reset: none;
}
.step {
  position: relative;
  padding: 1.75rem;
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}
.step__num {
  display: inline-block;
  margin-bottom: 0.75rem;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 2.2rem;
  line-height: 1;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.step p { margin: 0; }
/* Barra superior que se ilumina al pasar el ratón */
.step::before {
  content: "";
  position: absolute;
  top: -1px; left: var(--cut); right: 40%;
  height: 2px;
  background: var(--gradient-brand);
  transform: scaleX(0.25);
  transform-origin: left;
  transition: transform var(--transition);
}
.step:hover::before { transform: scaleX(1); }

/* --------------------------------------------------------------------------
   10. RESULTADOS (sección oscura)
   -------------------------------------------------------------------------- */
.section--dark {
  background:
    radial-gradient(ellipse at 15% 0%, rgba(34, 211, 238, 0.18), transparent 50%),
    radial-gradient(ellipse at 90% 100%, rgba(30, 91, 184, 0.45), transparent 55%),
    var(--color-navy);
  color: rgba(255, 255, 255, 0.8);
  overflow: hidden;
  padding-block: calc(var(--section-space) + 3vw);
}
/* Bordes superior e inferior en diagonal, como el ángulo del logo.
   Se pintan triángulos con el color de las secciones vecinas
   (gris de "Cómo trabajamos" arriba y blanco de "Sobre nosotros" abajo). */
.section--dark::before,
.section--dark::after {
  content: "";
  position: absolute;
  left: 0; right: 0;
  height: 3vw;
  z-index: 1;
  pointer-events: none;
}
.section--dark::before { top: -1px; background: var(--color-bg-alt); clip-path: polygon(0 0, 100% 0, 0 100%); }
.section--dark::after { bottom: -1px; background: var(--color-white); clip-path: polygon(100% 0, 100% 100%, 0 100%); }
.section--dark .tech-grid {
  --grid-line: rgba(34, 211, 238, 0.07);
  -webkit-mask-image: linear-gradient(180deg, #000, transparent 85%);
  mask-image: linear-gradient(180deg, #000, transparent 85%);
}
.section--dark .container { position: relative; }
.section--dark .section__title { color: #fff; }
.section__kicker--light { color: var(--color-cyan); }

.stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}
.stat {
  position: relative;
  padding: 1.5rem 1rem;
  text-align: center;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(34, 211, 238, 0.18);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
}
/* Esquinas tipo "visor" (HUD) */
.stat::before,
.stat::after {
  content: "";
  position: absolute;
  width: 14px; height: 14px;
  border: 2px solid var(--color-cyan);
}
.stat::before { top: -1px; left: -1px; border-right: 0; border-bottom: 0; border-top-left-radius: var(--radius); }
.stat::after { bottom: -1px; right: -1px; border-left: 0; border-top: 0; border-bottom-right-radius: var(--radius); }
.stat__value {
  margin: 0 0 0.35rem;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(2.1rem, 7vw, 3rem);
  line-height: 1;
  color: var(--color-cyan);
  text-shadow: 0 0 24px rgba(34, 211, 238, 0.45);
}
.stat__label { margin: 0; font-size: 0.92rem; }


/* --------------------------------------------------------------------------
   11. SOBRE NOSOTROS
   -------------------------------------------------------------------------- */
.about { display: grid; gap: 3rem; align-items: center; }
.about__text .section__title { text-align: left; }

.name-origin {
  margin-top: 1.75rem;
  padding: 1.5rem;
  border-radius: var(--radius);
  background: var(--color-bg-alt);
  border-left: 4px solid var(--color-cyan);
}
.name-origin__title {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 0.75rem;
}
.name-origin__formula {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem 0.6rem;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  color: var(--color-navy);
}
.name-origin__formula strong { color: var(--color-blue); font-weight: 800; }
.name-origin__formula .op { color: var(--color-cyan-dark); font-weight: 700; }
.name-origin__result { font-weight: 800; }
.name-origin__text { margin: 0.75rem 0 0; font-size: 0.95rem; }

.founders { display: grid; gap: 1.25rem; }
.founder {
  padding: 2rem 1.5rem;
  text-align: center;
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}
/* Avatar con iniciales (sustituible por una foto <img>) */
.avatar {
  position: relative;
  display: grid;
  place-items: center;
  width: 96px; height: 96px;
  margin: 0 auto 1rem;
  border-radius: 50%;
  background: var(--gradient-brand);
  color: #fff;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 2rem;
  letter-spacing: 0.02em;
  box-shadow: 0 0 0 6px #fff, 0 0 0 8px rgba(34, 211, 238, 0.35);
}
.avatar--alt { background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-blue) 100%); }
/* Anillo discontinuo que gira lentamente */
.avatar::after {
  content: "";
  position: absolute;
  inset: -14px;
  border-radius: 50%;
  border: 1.5px dashed rgba(30, 91, 184, 0.45);
  animation: spin 24s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.founder h3 { margin-bottom: 0.15rem; }
.founder__role {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-cyan-dark);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.founder p:last-child { margin: 0; font-size: 0.95rem; }

/* --------------------------------------------------------------------------
   12. PREGUNTAS FRECUENTES (acordeón)
   -------------------------------------------------------------------------- */
.faq { display: grid; gap: 0.75rem; }
.faq__item {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: box-shadow var(--transition), border-color var(--transition);
}
.faq__item[open] {
  border-color: rgba(30, 91, 184, 0.35);
  box-shadow: var(--shadow-sm), inset 3px 0 0 var(--color-cyan);
}
.faq__item summary {
  position: relative;
  padding: 1.15rem 3.25rem 1.15rem 1.25rem;
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--color-navy);
  cursor: pointer;
  list-style: none;
}
.faq__item summary::-webkit-details-marker { display: none; }
/* Icono + / − */
.faq__item summary::after {
  content: "";
  position: absolute;
  right: 1.25rem; top: 50%;
  width: 24px; height: 24px;
  margin-top: -12px;
  clip-path: polygon(6px 0, 100% 0, 100% calc(100% - 6px), calc(100% - 6px) 100%, 0 100%, 0 6px);
  background:
    linear-gradient(#fff, #fff) center / 10px 2px no-repeat,
    linear-gradient(#fff, #fff) center / 2px 10px no-repeat,
    var(--gradient-brand);
  transition: transform var(--transition);
}
.faq__item[open] summary::after {
  transform: rotate(180deg);
  background:
    linear-gradient(#fff, #fff) center / 10px 2px no-repeat,
    var(--gradient-brand);
}
.faq__answer { padding: 0 1.25rem 1.15rem; }
.faq__answer p { margin: 0; }

/* --------------------------------------------------------------------------
   13. CONTACTO
   -------------------------------------------------------------------------- */
.contact { display: grid; gap: 2.5rem; }
.contact__info .section__title { text-align: left; }
.contact__list { display: grid; gap: 0.9rem; margin: 1.5rem 0 2rem; }
.contact__list li { display: flex; align-items: center; gap: 0.85rem; }
.contact__list a { color: var(--color-navy); font-weight: 600; text-decoration: none; }
.contact__list a:hover { color: var(--color-blue); text-decoration: underline; }

.contact-form {
  position: relative;
  padding: 1.75rem 1.5rem;
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
}
/* Línea luminosa superior del formulario */
.contact-form::before {
  content: "";
  position: absolute;
  top: -1px; left: 1.5rem; right: 1.5rem;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-cyan), var(--color-blue), transparent);
}
.form-row { display: grid; gap: 0 1rem; }
.form-field { margin-bottom: 1.1rem; }
.form-field label {
  display: block;
  margin-bottom: 0.4rem;
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--color-navy);
}
.form-field input,
.form-field textarea {
  width: 100%;
  padding: 0.8rem 0.95rem;
  font: inherit;
  color: var(--color-navy);
  background: var(--color-bg-alt);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition), background-color var(--transition), box-shadow var(--transition);
}
.form-field textarea { resize: vertical; min-height: 130px; }
.form-field input:focus,
.form-field textarea:focus {
  outline: none;
  background: #fff;
  border-color: var(--color-blue);
  box-shadow: 0 0 0 4px rgba(34, 211, 238, 0.25);
}
/* Campo con error (lo marca main.js) */
.form-field input[aria-invalid="true"],
.form-field textarea[aria-invalid="true"] { border-color: #C62828; }

.form-check {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  margin-bottom: 1.4rem;
  font-size: 0.9rem;
}
.form-check input { width: 20px; height: 20px; margin-top: 0.15rem; flex-shrink: 0; accent-color: var(--color-blue); }

.form-status { margin: 1rem 0 0; font-weight: 600; font-size: 0.95rem; }
.form-status:empty { display: none; }
.form-status.is-success { color: #1B7A3E; }
.form-status.is-error { color: #C62828; }
.form-note { margin: 0.75rem 0 0; font-size: 0.8rem; }

/* --------------------------------------------------------------------------
   14. PIE DE PÁGINA
   -------------------------------------------------------------------------- */
.site-footer {
  position: relative;
  background:
    linear-gradient(rgba(34, 211, 238, 0.05) 1px, transparent 1px) 0 0 / var(--grid-size) var(--grid-size),
    linear-gradient(90deg, rgba(34, 211, 238, 0.05) 1px, transparent 1px) 0 0 / var(--grid-size) var(--grid-size),
    var(--color-navy);
  color: rgba(255, 255, 255, 0.75);
  padding: 3.5rem 0 1.5rem;
  font-size: 0.95rem;
}
.footer__grid { display: grid; gap: 2rem; }
/* Logo del pie: símbolo (PNG transparente) + nombre en blanco */
.footer__logo {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}
.footer__logo img { width: 56px; height: auto; filter: drop-shadow(0 0 12px rgba(34, 211, 238, 0.35)); }
.footer__logo-words { display: flex; flex-direction: column; }
.footer__logo .wordmark__text { color: #fff; font-size: 1.5rem; line-height: 1.1; }
.footer__tagline {
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.28em;
  color: rgba(255, 255, 255, 0.65);
}

.footer__title {
  font-family: var(--font-heading);
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.75rem;
}
.footer__col ul { display: grid; gap: 0.5rem; }
.site-footer a { color: rgba(255, 255, 255, 0.8); text-decoration: none; }
.site-footer a:hover { color: var(--color-cyan); }

.footer__bottom {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.85rem;
}
.footer__bottom p { margin: 0; }
.footer__legal { display: flex; align-items: center; gap: 1.25rem; }
/* Candado del acceso interno: pequeño y discreto */
.footer__lock {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.7rem;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 999px;
  transition: border-color var(--transition), color var(--transition);
}
.footer__lock:hover, .footer__lock:focus-visible { border-color: var(--color-cyan); }
.footer__lock svg { width: 16px; height: 16px; }

/* --------------------------------------------------------------------------
   15. BOTÓN FLOTANTE DE WHATSAPP
   -------------------------------------------------------------------------- */
.whatsapp-float {
  position: fixed;
  right: 1rem; bottom: 1rem;
  z-index: 90;
  display: grid;
  place-items: center;
  width: 58px; height: 58px;
  border-radius: 50%;
  background: var(--color-whatsapp);
  color: #fff;
  box-shadow: 0 8px 24px rgba(18, 140, 75, 0.4);
  transition: transform var(--transition), box-shadow var(--transition);
}
.whatsapp-float svg { width: 30px; height: 30px; }
.whatsapp-float:hover { transform: scale(1.08); box-shadow: 0 12px 30px rgba(18, 140, 75, 0.5); }
/* Pulso suave para llamar la atención */
.whatsapp-float::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: var(--color-whatsapp);
  z-index: -1;
  animation: pulse 2.6s ease-out infinite;
}
@keyframes pulse {
  0% { transform: scale(1); opacity: 0.5; }
  100% { transform: scale(1.6); opacity: 0; }
}

/* --------------------------------------------------------------------------
   16. ANIMACIONES AL HACER SCROLL
   Solo se ocultan si JS está activo (clase .js en <html>)
   -------------------------------------------------------------------------- */
.js .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.js .reveal--delay { transition-delay: 0.15s; }
.js .reveal.is-visible { opacity: 1; transform: none; }

/* Respeta a quien prefiere menos movimiento */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation: none !important;
    transition-duration: 0.01ms !important;
  }
  .js .reveal { opacity: 1; transform: none; }
}

/* --------------------------------------------------------------------------
   17. PÁGINAS LEGALES
   -------------------------------------------------------------------------- */
.legal { padding: calc(var(--header-height) + 2.5rem) 0 4rem; }
.legal h1 { font-size: clamp(1.8rem, 5vw, 2.4rem); }
.legal h2 { font-size: 1.25rem; margin-top: 2rem; }
.legal ul { list-style: disc; padding-left: 1.25rem; margin-bottom: 1rem; }

/* ==========================================================================
   MEDIA QUERIES (de menor a mayor)
   ========================================================================== */

/* Tablet pequeña */
@media (min-width: 600px) {
  .hero__actions { flex-direction: row; flex-wrap: wrap; }
  .form-row { grid-template-columns: 1fr 1fr; }
  .contact-form { padding: 2.25rem; }
  .founders { grid-template-columns: 1fr 1fr; }
  .grid--services { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .footer__bottom { flex-direction: row; justify-content: space-between; }
}

/* Tablet / escritorio pequeño */
@media (min-width: 900px) {
  :root { --section-space: 6rem; --header-height: 76px; --gutter: 2rem; }

  /* Menú horizontal */
  .nav-toggle { display: none; }
  .main-nav {
    position: static;
    padding: 0;
    background: none;
    box-shadow: none;
    opacity: 1;
    visibility: visible;
    transform: none;
  }
  .main-nav ul { flex-direction: row; align-items: center; gap: 1.75rem; }
  .main-nav a:not(.btn) {
    position: relative;
    padding: 0.25rem 0;
    border: 0;
    font-size: 0.95rem;
  }
  /* Subrayado animado */
  .main-nav a:not(.btn)::after {
    content: "";
    position: absolute;
    left: 0; bottom: -2px;
    width: 100%; height: 2px;
    background: var(--gradient-brand);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition);
  }
  .main-nav a:not(.btn):hover::after,
  .main-nav a.is-active::after { transform: scaleX(1); }
  .main-nav .btn { margin: 0; width: auto; }

  .hero { padding: calc(var(--header-height) + 4rem) 0 6rem; }
  .hero__network { opacity: 0.6; }
  .hero__grid { grid-template-columns: 1.1fr 0.9fr; gap: 4rem; }
  .hero__visual { padding: 2.5rem 1rem; }
  .float-card--1 { left: -1.5rem; }
  .float-card--2 { right: -0.5rem; }

  .grid--3 { grid-template-columns: repeat(3, 1fr); }
  .grid--services { grid-template-columns: repeat(3, 1fr); }
  .stats { grid-template-columns: repeat(4, 1fr); gap: 1.25rem; }

  /* Pasos en línea, unidos por un "flujo de datos" animado */
  .steps { grid-template-columns: repeat(4, 1fr); }
  .step:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 2.85rem; right: -1.3rem;
    z-index: 1;
    width: 1.35rem; height: 2px;
    background: repeating-linear-gradient(90deg, var(--color-cyan) 0 5px, transparent 5px 9px);
    background-size: 18px 2px;
    animation: data-flow 0.9s linear infinite;
  }
  @keyframes data-flow { to { background-position: 18px 0; } }

  .about { grid-template-columns: 1.15fr 1fr; gap: 4rem; }
  /* Fundadores: una tarjeta bajo otra, con el avatar a la izquierda */
  .founders { grid-template-columns: 1fr; }
  .founder {
    display: grid;
    grid-template-columns: auto 1fr;
    column-gap: 1.75rem;
    align-items: start;
    padding: 1.75rem;
    text-align: left;
  }
  .founder .avatar { grid-row: 1 / span 3; margin: 0.5rem 0.5rem 0; }
  .contact { grid-template-columns: 0.9fr 1.1fr; gap: 4rem; align-items: start; }
  .footer__grid { grid-template-columns: 2fr 1fr 1fr; }
  .whatsapp-float { right: 1.5rem; bottom: 1.5rem; }
}