/* Variables globales: colores, radios y sombras. Cambiar aquí afecta a toda la identidad visual. */
:root {
      --black: #05070b;
      --black-soft: #0b1018;
      --panel: #101826;
      --panel-2: #0d1420;
      --blue: #008cff;
      --blue-dark: #0057c8;
      --blue-soft: #7cc8ff;
      --white: #f7fbff;
      --muted: #9ba8ba;
      --line: rgba(124, 200, 255, .18);
      --radius: 28px;
      --shadow: 0 30px 90px rgba(0, 140, 255, .16);
    }

    /* Reset básico para eliminar márgenes por defecto y usar box-sizing consistente. */
* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    /* Scroll suave al navegar mediante enlaces internos como #servicios o #contacto. */
html {
      scroll-behavior: smooth;
    }

    /* Estilos generales: fuente, fondo con degradados, color del texto y bloqueo del scroll horizontal. */
body {
      font-family: "Inter", sans-serif;
      background:
        radial-gradient(circle at top left, rgba(0, 140, 255, .22), transparent 32rem),
        radial-gradient(circle at 85% 18%, rgba(0, 87, 200, .18), transparent 28rem),
        var(--black);
      color: var(--white);
      line-height: 1.6;
      overflow-x: hidden;
    }

    /* Rejilla decorativa fija de fondo. No afecta al contenido. */
body::before {
      content: "";
      position: fixed;
      inset: 0;
      pointer-events: none;
      background-image:
        linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
      background-size: 52px 52px;
      mask-image: linear-gradient(to bottom, #000, transparent 80%);
      z-index: -1;
    }

    /* Los enlaces heredan el color del contexto y pierden el subrayado por defecto. */
a {
      color: inherit;
      text-decoration: none;
    }

    /* Imágenes adaptables al ancho disponible. */
img {
      max-width: 100%;
      display: block;
    }

    /* Contenedor central reutilizable. Controla el ancho máximo de cada sección. */
.container {
      width: min(1180px, calc(100% - 40px));
      margin: 0 auto;
    }

    /* Cabecera fija flotante con efecto cristal. */
header {
      position: fixed;
      top: 18px;
      left: 50%;
      transform: translateX(-50%);
      width: min(1180px, calc(100% - 32px));
      z-index: 100;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 24px;
      padding: 14px 16px 14px 18px;
      border: 1px solid rgba(255,255,255,.08);
      border-radius: 999px;
      background: rgba(5, 7, 11, .72);
      backdrop-filter: blur(18px);
      box-shadow: 0 20px 80px rgba(0,0,0,.28);
    }

    /* Logo del header. Sustituye img/logo.png en el HTML si cambias el archivo. */
.logo{
    height: 42px;
    width: auto;
    display: block;
    filter: drop-shadow(0 0 12px rgba(59,130,246,.35));
    transition: .3s ease;
    }

    .logo:hover{
    transform: scale(1.03);
    filter: drop-shadow(0 0 18px rgba(59,130,246,.55));
    }

    /* Agrupa logo y nombre de marca. */
.brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      min-width: max-content;
    }

    .brand-mark {
      width: 38px;
      height: 38px;
      border-radius: 12px;
      background:
        linear-gradient(135deg, var(--blue), var(--blue-soft));
      display: grid;
      place-items: center;
      color: #001426;
      font-weight: 900;
      box-shadow: 0 0 30px rgba(0, 140, 255, .45);
    }

    .brand span {
      font-size: 13px;
      letter-spacing: .14em;
      font-weight: 800;
      text-transform: uppercase;
    }

    /* Menú de navegación principal. */
nav {
      display: flex;
      align-items: center;
      gap: 6px;
    }

    /* Enlaces del menú. Ajusta padding, tamaño o color para cambiar su aspecto. */
nav a {
      color: var(--muted);
      font-size: 13px;
      font-weight: 700;
      padding: 10px 14px;
      border-radius: 999px;
      transition: .25s ease;
    }

    nav a:hover {
      color: var(--white);
      background: rgba(255,255,255,.07);
    }

    /* Botón destacado del menú. */
.nav-cta {
      color: #001426;
      background: var(--blue-soft);
    }

    .nav-cta:hover {
      background: var(--blue);
      color: white;
    }

    /* Primera sección a pantalla completa. */
.hero {
      min-height: 100vh;
      display: grid;
      align-items: center;
      padding: 150px 0 80px;
      position: relative;
    }

    /* Distribución en dos columnas del hero: texto e imagen/tarjeta. */
.hero-grid {
      display: grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 42px;
      align-items: center;
    }

    /* Etiqueta pequeña superior del hero. */
.eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 22px;
      padding: 8px 12px;
      color: var(--blue-soft);
      border: 1px solid var(--line);
      border-radius: 999px;
      background: rgba(0, 140, 255, .08);
      font-size: 12px;
      font-weight: 800;
      letter-spacing: .12em;
      text-transform: uppercase;
    }

    .eyebrow::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--blue);
      box-shadow: 0 0 18px var(--blue);
    }

    /* Titular principal. clamp() adapta el tamaño entre móvil y escritorio. */
h1 {
      font-size: clamp(46px, 8vw, 104px);
      line-height: .88;
      letter-spacing: -.07em;
      font-weight: 900;
      max-width: 920px;
      text-wrap: balance;
    }

    /* Texto destacado en azul. */
.blue-text {
      color: var(--blue-soft);
      text-shadow: 0 0 50px rgba(0, 140, 255, .28);
    }

    /* Texto descriptivo bajo el titular principal. */
.hero-copy {
      margin-top: 28px;
      max-width: 660px;
      color: #c7d1df;
      font-size: clamp(17px, 2vw, 21px);
    }

    /* Contenedor de botones principales. */
.hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-top: 34px;
    }

    /* Estilo base compartido por todos los botones. */
.btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      min-height: 52px;
      padding: 0 22px;
      border-radius: 999px;
      font-weight: 800;
      font-size: 14px;
      transition: .25s ease;
    }

    /* Botón principal con degradado azul. */
.btn-primary {
      background: linear-gradient(135deg, var(--blue), var(--blue-soft));
      color: #001426;
      box-shadow: 0 18px 45px rgba(0, 140, 255, .28);
    }

    .btn-primary:hover {
      transform: translateY(-3px);
      box-shadow: 0 24px 60px rgba(0, 140, 255, .36);
    }

    /* Botón secundario con borde translúcido. */
.btn-secondary {
      border: 1px solid rgba(255,255,255,.14);
      color: var(--white);
      background: rgba(255,255,255,.04);
    }

    .btn-secondary:hover {
      border-color: var(--blue-soft);
      background: rgba(0,140,255,.12);
    }

    /* Tarjeta visual del hero. Cambia aquí la imagen principal de Unsplash por una local o propia. */
.hero-card {
      position: relative;
      min-height: 560px;
      border-radius: 40px;
      overflow: hidden;
      border: 1px solid rgba(255,255,255,.12);
      box-shadow: var(--shadow);
      background:
        linear-gradient(to bottom, rgba(5,7,11,.12), rgba(5,7,11,.88)),
        url("https://images.unsplash.com/photo-1505373877841-8d25f7d46678?auto=format&fit=crop&w=1200&q=85") center/cover;
    }

    .hero-card::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(0,140,255,.35), transparent 42%);
      mix-blend-mode: screen;
    }

    /* Panel flotante dentro de la tarjeta principal. */
.floating-panel {
      position: absolute;
      z-index: 2;
      left: 24px;
      right: 24px;
      bottom: 24px;
      padding: 24px;
      border-radius: 26px;
      background: rgba(5, 7, 11, .72);
      border: 1px solid rgba(255,255,255,.12);
      backdrop-filter: blur(18px);
    }

    .floating-panel strong {
      display: block;
      font-size: 32px;
      line-height: 1;
      margin-bottom: 8px;
      color: var(--blue-soft);
    }

    .floating-panel p {
      color: #d7e3f3;
      font-weight: 600;
    }

    /* Mini métricas/etapas dentro del panel flotante. */
.stats {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 14px;
      margin-top: 26px;
    }

    .stat {
      padding: 18px;
      border-radius: 22px;
      background: rgba(255,255,255,.045);
      border: 1px solid rgba(255,255,255,.08);
    }

    .stat strong {
      display: block;
      font-size: 28px;
      color: var(--blue-soft);
    }

    .stat span {
      color: var(--muted);
      font-size: 13px;
      font-weight: 700;
    }

    /* Separación vertical general de todas las secciones. */
section {
      padding: 96px 0;
    }

    /* Cabecera de sección: título a la izquierda y texto introductorio a la derecha. */
.section-head {
      display: grid;
      grid-template-columns: .75fr 1fr;
      gap: 40px;
      align-items: end;
      margin-bottom: 38px;
    }

    /* Etiqueta pequeña en azul usada en varias secciones. */
.kicker {
      color: var(--blue-soft);
      font-size: 12px;
      font-weight: 900;
      letter-spacing: .16em;
      text-transform: uppercase;
      margin-bottom: 12px;
    }

    /* Títulos secundarios de sección. */
h2 {
      font-size: clamp(34px, 5vw, 66px);
      line-height: .95;
      letter-spacing: -.05em;
      font-weight: 900;
      text-wrap: balance;
    }

    .section-head p,
    .lead {
      color: #b6c3d4;
      font-size: 17px;
      max-width: 680px;
    }

    /* Grid de tarjetas de servicios. */
.service-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
    }

    /* Estilo base compartido para tarjetas de servicios, valores y proyectos. */
.service-card,
    .value-card,
    /* Tarjetas visuales de proyectos. Las imágenes se definen con nth-child. */
.project-card {
      border: 1px solid rgba(255,255,255,.09);
      background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.025));
      border-radius: var(--radius);
      overflow: hidden;
      transition: .25s ease;
    }

    /* Tarjeta individual de servicio. */
.service-card {
      padding: 28px;
      min-height: 290px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .service-card:hover,
    .value-card:hover,
    .project-card:hover {
      transform: translateY(-7px);
      border-color: rgba(124, 200, 255, .42);
      box-shadow: 0 24px 70px rgba(0, 140, 255, .12);
    }

    .service-number {
      color: var(--blue-soft);
      font-size: 13px;
      font-weight: 900;
      letter-spacing: .12em;
    }

    .service-card h3 {
      margin: 42px 0 14px;
      font-size: 24px;
      line-height: 1.05;
      letter-spacing: -.03em;
    }

    .service-card p {
      color: var(--muted);
      font-size: 15px;
    }

    /* Layout de dos columnas usado en Método Haridian. */
.split {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 22px;
      align-items: stretch;
    }

    /* Imagen de apoyo de la sección método. Cambia la URL para usar otra foto. */
.image-block {
      min-height: 520px;
      border-radius: 36px;
      overflow: hidden;
      background:
        linear-gradient(to bottom, rgba(0,140,255,.10), rgba(5,7,11,.72)),
        url("https://images.unsplash.com/photo-1511578314322-379afb476865?auto=format&fit=crop&w=1200&q=85") center/cover;
      border: 1px solid rgba(255,255,255,.1);
    }

    /* Caja de contenido de la sección método. */
.content-block {
      padding: clamp(30px, 5vw, 56px);
      border-radius: 36px;
      background: linear-gradient(135deg, rgba(0,140,255,.16), rgba(255,255,255,.045));
      border: 1px solid var(--line);
    }

    .content-block h2 {
      margin-bottom: 24px;
    }

    /* Lista de ventajas con icono de check generado por CSS. */
.check-list {
      display: grid;
      gap: 14px;
      margin-top: 28px;
    }

    .check {
      display: flex;
      gap: 14px;
      align-items: flex-start;
      color: #d7e2f0;
      font-weight: 600;
    }

    .check::before {
      content: "✓";
      flex: 0 0 26px;
      height: 26px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      background: rgba(0,140,255,.18);
      color: var(--blue-soft);
      font-weight: 900;
    }

    /* Galería de formatos/eventos. */
.project-grid {
      display: grid;
      grid-template-columns: 1.2fr .8fr .8fr;
      gap: 18px;
    }

    .project-card {
      min-height: 360px;
      position: relative;
      display: flex;
      align-items: end;
      isolation: isolate;
      background-position: center;
      background-size: cover;
    }

    /* Imagen del primer formato. Cambia background-image para usar una foto propia. */
.project-card:nth-child(1) {
      grid-row: span 2;
      min-height: 738px;
      background-image: url("https://images.unsplash.com/photo-1492684223066-81342ee5ff30?auto=format&fit=crop&w=1200&q=85");
    }

    .project-card:nth-child(2) {
      background-image: url("https://images.unsplash.com/photo-1503428593586-e225b39bddfe?auto=format&fit=crop&w=900&q=85");
    }

    .project-card:nth-child(3) {
      background-image: url("https://images.unsplash.com/photo-1472653431158-6364773b2a56?auto=format&fit=crop&w=900&q=85");
    }

    .project-card:nth-child(4) {
      background-image: url("https://images.unsplash.com/photo-1551818255-e6e10975bc17?auto=format&fit=crop&w=900&q=85");
    }

    .project-card:nth-child(5) {
      background-image: url("https://images.unsplash.com/photo-1464366400600-7168b8af9bc3?auto=format&fit=crop&w=900&q=85");
    }

    .project-card::before {
      content: "";
      position: absolute;
      inset: 0;
      z-index: -1;
      background:
        linear-gradient(to top, rgba(5,7,11,.92), rgba(5,7,11,.12)),
        linear-gradient(135deg, rgba(0,140,255,.24), transparent);
    }

    .project-info {
      padding: 24px;
    }

    .project-info span {
      display: inline-block;
      margin-bottom: 8px;
      color: var(--blue-soft);
      font-size: 12px;
      font-weight: 900;
      letter-spacing: .12em;
      text-transform: uppercase;
    }

    .project-info h3 {
      font-size: 25px;
      line-height: 1.05;
      letter-spacing: -.03em;
    }

    /* Grid de argumentos de valor/beneficios. */
.values {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 18px;
    }

    /* Tarjeta individual de valor. */
.value-card {
      padding: 30px;
      background: var(--panel-2);
    }

    .value-icon {
      width: 52px;
      height: 52px;
      border-radius: 18px;
      display: grid;
      place-items: center;
      margin-bottom: 28px;
      color: #001426;
      background: linear-gradient(135deg, var(--blue), var(--blue-soft));
      font-weight: 900;
      font-size: 22px;
    }

    .value-card h3 {
      font-size: 23px;
      margin-bottom: 12px;
      letter-spacing: -.03em;
    }

    .value-card p {
      color: var(--muted);
    }

    /* Sección final de contacto. */
.cta {
      padding: 0 0 96px;
    }

    /* Caja visual del CTA con fondo radial y sombra. */
.cta-box {
      position: relative;
      overflow: hidden;
      border-radius: 42px;
      padding: clamp(36px, 8vw, 78px);
      background:
        radial-gradient(circle at top right, rgba(124,200,255,.42), transparent 24rem),
        linear-gradient(135deg, #06101e, #02050a 60%);
      border: 1px solid rgba(124,200,255,.22);
      box-shadow: var(--shadow);
    }

    .cta-box::before {
      content: "";
      position: absolute;
      width: 260px;
      height: 260px;
      border-radius: 50%;
      right: -90px;
      bottom: -120px;
      border: 42px solid rgba(0,140,255,.15);
    }

    .cta-content {
      position: relative;
      z-index: 1;
      max-width: 760px;
    }

    /* Fila de datos de contacto en formato píldora. */
.contact-row {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 28px;
    }

    .contact-pill {
      display: inline-flex;
      align-items: center;
      min-height: 48px;
      padding: 0 18px;
      border-radius: 999px;
      background: rgba(255,255,255,.06);
      border: 1px solid rgba(255,255,255,.1);
      color: #dce8f6;
      font-weight: 800;
    }

    /* Pie de página. */
footer {
      border-top: 1px solid rgba(255,255,255,.08);
      padding: 34px 0;
      color: var(--muted);
      font-size: 14px;
    }

    .footer-inner {
      display: flex;
      justify-content: space-between;
      gap: 18px;
      flex-wrap: wrap;
    }


    /* --- Ventour-inspired motion layer --- */
    /* Barra superior que muestra el progreso de scroll. El ancho lo controla JavaScript. */
.scroll-progress {
      position: fixed;
      top: 0;
      left: 0;
      width: 0%;
      height: 3px;
      z-index: 999;
      background: linear-gradient(90deg, var(--blue), var(--blue-soft));
      box-shadow: 0 0 22px rgba(0, 140, 255, .75);
    }

    /* Brillo que sigue al cursor. */
.cursor-glow {
      position: fixed;
      width: 420px;
      height: 420px;
      border-radius: 50%;
      pointer-events: none;
      z-index: -1;
      opacity: .28;
      transform: translate(-50%, -50%);
      background: radial-gradient(circle, rgba(0,140,255,.38), transparent 62%);
      filter: blur(10px);
      transition: opacity .3s ease;
    }

    /* Textura de grano superpuesta. */
.grain {
      position: fixed;
      inset: 0;
      z-index: 0;
      pointer-events: none;
      opacity: .18;
      mix-blend-mode: overlay;
      background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 220 220' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.42'/%3E%3C/svg%3E");
    }

    main,
    header,
    footer {
      position: relative;
      z-index: 1;
    }

    /* Estado del header cuando el usuario hace scroll. Se añade desde JavaScript. */
header.is-scrolled {
      top: 10px;
      background: rgba(5, 7, 11, .86);
      border-color: rgba(124,200,255,.22);
    }

    .hero::before,
    .hero::after {
      content: "";
      position: absolute;
      border-radius: 50%;
      pointer-events: none;
      filter: blur(2px);
      opacity: .75;
    }

    .hero::before {
      width: 22vw;
      height: 22vw;
      min-width: 260px;
      min-height: 260px;
      right: -8vw;
      top: 22%;
      border: 1px solid rgba(124,200,255,.23);
      box-shadow: inset 0 0 80px rgba(0,140,255,.08);
      animation: floatOrb 9s ease-in-out infinite;
    }

    .hero::after {
      width: 10vw;
      height: 10vw;
      min-width: 120px;
      min-height: 120px;
      left: 5vw;
      bottom: 7%;
      background: rgba(0,140,255,.16);
      animation: floatOrb 7s ease-in-out infinite reverse;
    }

    /* Contenedor usado para animar por partes el título principal. */
.split-title {
      display: inline-block;
      overflow: hidden;
      vertical-align: bottom;
    }

    .split-title span {
      display: inline-block;
      transform: translateY(110%) rotate(4deg);
      animation: titleIn .9s cubic-bezier(.2,.8,.2,1) forwards;
    }

    .split-title:nth-child(2) span { animation-delay: .09s; }
    .split-title:nth-child(3) span { animation-delay: .18s; }
    .split-title:nth-child(4) span { animation-delay: .27s; }
    .split-title:nth-child(5) span { animation-delay: .36s; }

    .hero-copy,
    .hero-actions,
    .hero-card {
      opacity: 0;
      transform: translateY(24px);
      animation: fadeLift .85s ease forwards;
    }

    .hero-copy { animation-delay: .45s; }
    .hero-actions { animation-delay: .58s; }
    .hero-card { animation-delay: .3s; }

    .hero-card {
      transform-style: preserve-3d;
      transition: transform .22s ease, box-shadow .22s ease;
    }

    .hero-card:hover {
      box-shadow: 0 42px 120px rgba(0,140,255,.22);
    }

    .floating-panel {
      animation: panelPulse 5s ease-in-out infinite;
    }

    .magnetic {
      position: relative;
      overflow: hidden;
    }

    .magnetic::after {
      content: "";
      position: absolute;
      inset: auto auto -80% -30%;
      width: 70%;
      height: 220%;
      transform: rotate(28deg);
      background: linear-gradient(90deg, transparent, rgba(255,255,255,.38), transparent);
      opacity: 0;
      transition: .45s ease;
    }

    .magnetic:hover::after {
      left: 95%;
      opacity: .55;
    }

    /* Estado inicial de elementos que aparecen al entrar en pantalla. */
.reveal {
      opacity: 0;
      transform: translateY(38px);
      transition: opacity .75s ease, transform .75s cubic-bezier(.2,.8,.2,1);
    }

    /* Estado final cuando JavaScript añade la clase in-view. */
.reveal.in-view {
      opacity: 1;
      transform: translateY(0);
    }

    .service-card,
    .value-card,
    .project-card {
      will-change: transform;
    }

    .service-card::before,
    .value-card::before {
      content: "";
      position: absolute;
      inset: 0;
      opacity: 0;
      background: radial-gradient(circle at var(--mx, 50%) var(--my, 50%), rgba(124,200,255,.20), transparent 34%);
      transition: opacity .25s ease;
      pointer-events: none;
    }

    .service-card,
    .value-card {
      position: relative;
      isolation: isolate;
    }

    .service-card:hover::before,
    .value-card:hover::before {
      opacity: 1;
    }

    /* Banda inclinada que contiene el texto animado de marquesina. */
.marquee-wrap {
      border-block: 1px solid rgba(124,200,255,.16);
      background: rgba(255,255,255,.025);
      overflow: hidden;
      padding: 18px 0;
      transform: rotate(-1deg) scale(1.02);
      margin: 8px 0 40px;
    }

    /* Movimiento horizontal infinito de la marquesina. */
.marquee {
      display: flex;
      gap: 34px;
      width: max-content;
      animation: marquee 22s linear infinite;
      color: rgba(247,251,255,.88);
      font-size: clamp(22px, 4vw, 54px);
      line-height: 1;
      font-weight: 900;
      letter-spacing: -.05em;
      text-transform: uppercase;
      white-space: nowrap;
    }

    .marquee span:nth-child(even) {
      color: transparent;
      -webkit-text-stroke: 1px rgba(124,200,255,.72);
    }

    .project-card {
      transition: transform .45s cubic-bezier(.2,.8,.2,1), border-color .25s ease, box-shadow .25s ease, filter .25s ease;
    }

    .project-card:hover {
      transform: translateY(-10px) scale(1.015);
      filter: saturate(1.12) contrast(1.06);
    }

    .project-card::after {
      content: "Ver formato →";
      position: absolute;
      top: 18px;
      right: 18px;
      transform: translateY(-8px);
      opacity: 0;
      padding: 8px 12px;
      border-radius: 999px;
      background: rgba(5,7,11,.72);
      border: 1px solid rgba(124,200,255,.25);
      backdrop-filter: blur(12px);
      color: var(--blue-soft);
      font-size: 12px;
      font-weight: 900;
      transition: .25s ease;
    }

    .project-card:hover::after {
      transform: translateY(0);
      opacity: 1;
    }

    .cta-box {
      isolation: isolate;
    }

    .cta-box::after {
      content: "";
      position: absolute;
      inset: 1px;
      border-radius: 41px;
      background: linear-gradient(120deg, transparent, rgba(0,140,255,.16), transparent);
      transform: translateX(-100%);
      animation: scan 5.5s ease-in-out infinite;
      pointer-events: none;
      z-index: 0;
    }

    /* Animación de entrada del titular principal. */
@keyframes titleIn {
      to { transform: translateY(0) rotate(0); }
    }

    /* Animación de aparición con desplazamiento vertical. */
@keyframes fadeLift {
      to { opacity: 1; transform: translateY(0); }
    }

    /* Movimiento suave de los círculos decorativos del hero. */
@keyframes floatOrb {
      0%, 100% { transform: translate3d(0,0,0) scale(1); }
      50% { transform: translate3d(-18px, 22px, 0) scale(1.06); }
    }

    @keyframes panelPulse {
      0%, 100% { box-shadow: 0 0 0 rgba(0,140,255,0); }
      50% { box-shadow: 0 0 60px rgba(0,140,255,.18); }
    }

    /* Desplazamiento continuo de la marquesina. */
@keyframes marquee {
      from { transform: translateX(0); }
      to { transform: translateX(-50%); }
    }

    @keyframes scan {
      0%, 45% { transform: translateX(-100%); opacity: 0; }
      55% { opacity: 1; }
      100% { transform: translateX(100%); opacity: 0; }
    }

    /* Accesibilidad: reduce animaciones si el usuario lo tiene configurado en su sistema. */
@media (prefers-reduced-motion: reduce) {
      *, *::before, *::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        scroll-behavior: auto !important;
        transition-duration: .01ms !important;
      }
    }

    /* Tablet: navegación oculta y layouts pasan a menos columnas. */
@media (max-width: 980px) {
      header {
        border-radius: 24px;
        align-items: flex-start;
      }

      nav {
        display: none;
      }

      .hero-grid,
      .section-head,
      .split {
        grid-template-columns: 1fr;
      }

      .hero-card,
      .image-block {
        min-height: 420px;
      }

      .service-grid,
      .values {
        grid-template-columns: repeat(2, 1fr);
      }

      .project-grid {
        grid-template-columns: 1fr;
      }

      .project-card,
      .project-card:nth-child(1) {
        min-height: 390px;
        grid-row: auto;
      }
    }

    /* Móvil: botones a ancho completo y grids a una sola columna. */
@media (max-width: 640px) {
      .container {
        width: min(100% - 28px, 1180px);
      }

      header {
        top: 10px;
        width: calc(100% - 20px);
      }

      .brand span {
        font-size: 11px;
      }

      .hero {
        padding-top: 118px;
      }

      .hero-actions,
      .contact-row {
        flex-direction: column;
      }

      .btn,
      .contact-pill {
        width: 100%;
      }

      .service-grid,
      .values,
      .stats {
        grid-template-columns: 1fr;
      }

      section {
        padding: 70px 0;
      }

      .cta {
        padding-bottom: 70px;
      }
    }