/* RESET Y VARIABLES CSS */
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    :root {
      --fondo: #ffffff;
      --fondo-alt: #f6f9fc;
      --texto: #0a1929;
      --texto-sec: #2d3a4f;
      --texto-claro: #5e6f88;
      --azul: #3b82f6;
      --azul-oscuro: #2563eb;
      --azul-grad: linear-gradient(145deg, #3b82f6, #8b5cf6);
      --sombra: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
      --sombra-suave: 0 10px 30px -15px rgba(0, 0, 0, 0.1);
      --borde: rgba(59, 130, 246, 0.1);
      --tarjeta: rgba(255, 255, 255, 0.9);
      --vidrio: rgba(255, 255, 255, 0.7);
    }

    body {
      font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
      background: var(--fondo);
      color: var(--texto);
      line-height: 1.5;
      overflow-x: hidden;
    }

    /* MODO OSCURO AUTOMÁTICO BASADO EN PREFERENCIA */
    @media (prefers-color-scheme: dark) {
      :root {
        --fondo: #0b1120;
        --fondo-alt: #111827;
        --texto: #f3f4f6;
        --texto-sec: #d1d5db;
        --texto-claro: #9ca3af;
        --tarjeta: rgba(30, 41, 59, 0.9);
        --vidrio: rgba(17, 24, 39, 0.8);
        --borde: rgba(59, 130, 246, 0.2);
      }
    }

    /* LAYOUT PRINCIPAL */
    .container {
      max-width: 1400px;
      margin: 0 auto;
      padding: 0 2rem;
    }

    /* HERO SECTION CON EFECTO MODERNO */
    .hero {
      min-height: 90vh;
      display: flex;
      align-items: center;
      position: relative;
      overflow: hidden;
    }

    .hero__background {
      position: absolute;
      top: -50%;
      right: -10%;
      width: 80%;
      height: 200%;
      background: radial-gradient(circle at 70% 50%, rgba(59,130,246,0.03) 0%, transparent 50%);
      z-index: -1;
    }

    .hero__content {
      max-width: 800px;
    }

    .hero__logo {
      font-size: clamp(3rem, 15vw, 7rem);
      font-weight: 800;
      letter-spacing: -0.03em;
      line-height: 1;
      margin-bottom: 1.5rem;
      background: linear-gradient(135deg, #3162af, #3b82f6, #8b5cf6);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      animation: fadeUp 0.8s ease-out;
    }

    .hero__tagline {
      font-size: clamp(1.2rem, 4vw, 2rem);
      color: var(--texto-sec);
      font-weight: 400;
      max-width: 600px;
      margin-bottom: 2.5rem;
      animation: fadeUp 1s ease-out 0.2s both;
    }

    /* ESTADÍSTICAS MODERNAS */
    .stats {
      display: flex;
      gap: 3rem;
      flex-wrap: wrap;
      animation: fadeUp 1s ease-out 0.4s both;
    }

    .stat__item {
      display: flex;
      flex-direction: column;
    }

    .stat__number {
      font-size: 2.5rem;
      font-weight: 700;
      color: var(--azul);
      line-height: 1.2;
    }

    .stat__label {
      font-size: 0.9rem;
      text-transform: uppercase;
      letter-spacing: 0.05em;
      color: var(--texto-claro);
    }

    /* SECCIÓN APPS */
    .apps-section {
      padding: 5rem 0;
      background: var(--fondo-alt);
      border-radius: 3rem 3rem 0 0;
      margin-top: -2rem;
    }

    .section-title {
      font-size: clamp(2rem, 5vw, 3rem);
      font-weight: 700;
      margin-bottom: 1rem;
      text-align: center;
    }

    .section-subtitle {
      text-align: center;
      color: var(--texto-claro);
      max-width: 600px;
      margin: 0 auto 4rem;
      font-size: 1.2rem;
    }

    /* GRID DE APPS MODERNO */
    .apps-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
      gap: 2.5rem;
      margin: 3rem 0;
    }

    /* TARJETA CON EFECTO GLASSMORPHISM */
    .app-card {
      background: var(--vidrio);
      backdrop-filter: blur(10px);
      -webkit-backdrop-filter: blur(10px);
      border: 1px solid var(--borde);
      border-radius: 2.5rem;
      overflow: hidden;
      transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
      box-shadow: var(--sombra-suave);
    }

    .app-card:hover {
      transform: translateY(-10px) scale(1.02);
      box-shadow: var(--sombra);
      border-color: var(--azul);
    }

    /* CONTENEDOR DE IMAGEN - imágenes sin copyright de Unsplash (simulan la app) */
    .app-image {
      width: 100%;
      height: 240px;
      background-size: cover;
      background-position: center;
      transition: transform 0.6s ease;
      position: relative;
      overflow: hidden;
    }

    .app-card:hover .app-image {
      transform: scale(1.05);
    }

    .app-image::after {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: linear-gradient(to bottom, transparent 50%, rgba(0,0,0,0.3));
    }

    /* IMÁGENES PLACEHOLDER SIN COPYRIGHT (Unsplash) - PUEDES REEMPLAZARLAS */
    .app-content {
      padding: 2rem;
    }

    .app-header {
      display: flex;
      align-items: center;
      gap: 1rem;
      margin-bottom: 1rem;
    }

    .app-icon {
      width: 60px;
      height: 60px;
      background: var(--azul-grad);
      border-radius: 18px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 2rem;
      box-shadow: 0 10px 20px -5px rgba(59,130,246,0.3);
    }

    .app-title {
      font-size: 2rem;
      font-weight: 700;
      letter-spacing: -0.02em;
    }

    .app-subtitle {
      color: var(--azul);
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.02em;
      font-size: 0.9rem;
      margin-bottom: 1rem;
    }

    .app-description {
      color: var(--texto-sec);
      margin: 1.5rem 0;
    }

    .app-features {
      list-style: none;
      margin: 1.5rem 0;
    }

    .app-features li {
      display: flex;
      align-items: center;
      gap: 0.8rem;
      margin-bottom: 0.8rem;
      font-size: 1rem;
    }

    .feature-check {
      color: var(--azul);
      font-weight: 700;
      font-size: 1.3rem;
    }

    /* BOTÓN MODERNO */
    .btn-play {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 1rem;
      background: var(--texto);
      color: var(--fondo);
      padding: 1.2rem 2.5rem;
      border-radius: 3rem;
      text-decoration: none;
      font-weight: 600;
      font-size: 1.1rem;
      transition: all 0.3s ease;
      border: none;
      width: 100%;
      margin-top: 1rem;
      position: relative;
      overflow: hidden;
    }

    .btn-play::before {
      content: '';
      position: absolute;
      top: 0;
      left: -100%;
      width: 100%;
      height: 100%;
      background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
      transition: left 0.5s;
    }

    .btn-play:hover {
      background: var(--azul-oscuro);
      transform: translateY(-3px);
      box-shadow: 0 20px 30px -10px var(--azul);
    }

    .btn-play:hover::before {
      left: 100%;
    }

    .play-icon {
      width: 24px;
      height: 24px;
      fill: currentColor;
    }

    /* BANNER DE CARACTERÍSTICAS */
    .features-banner {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 2rem;
      margin: 5rem 0;
      padding: 3rem;
      background: var(--tarjeta);
      border-radius: 3rem;
      backdrop-filter: blur(10px);
    }

    .feature-item {
      text-align: center;
    }

    .feature-emoji {
      font-size: 2.5rem;
      margin-bottom: 1rem;
      display: inline-block;
      background: var(--azul-grad);
      -webkit-background-clip: text;
        background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .feature-item h3 {
      font-size: 1.3rem;
      margin-bottom: 0.5rem;
    }

    .feature-item p {
      color: var(--texto-claro);
      font-size: 0.95rem;
    }

    /* FOOTER MODERNO */
    .footer {
      padding: 4rem 0 2rem;
      border-top: 1px solid var(--borde);
      margin-top: 3rem;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 3rem;
      margin-bottom: 3rem;
    }

    .footer-brand p {
      color: var(--texto-claro);
      margin-top: 1rem;
      font-size: 0.95rem;
    }

    .footer-links h4 {
      margin-bottom: 1rem;
      font-weight: 600;
    }

    .footer-links ul {
      list-style: none;
    }

    .footer-links li {
      margin-bottom: 0.7rem;
    }

    .footer-links a {
      color: var(--texto-claro);
      text-decoration: none;
      transition: color 0.2s;
    }

    .footer-links a:hover {
      color: var(--azul);
    }

    .footer-bottom {
      text-align: center;
      padding-top: 2rem;
      color: var(--texto-claro);
      font-size: 0.9rem;
      border-top: 1px solid var(--borde);
    }

    /* ANIMACIONES */
    @keyframes fadeUp {
      from {
        opacity: 0;
        transform: translateY(30px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    /* RESPONSIVE AVANZADO */
    @media (max-width: 768px) {
      .container {
        padding: 0 1.5rem;
      }

      .hero {
        min-height: auto;
        padding: 4rem 0;
      }

      .apps-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
      }

      .stats {
        gap: 2rem;
      }

      .stat__number {
        font-size: 2rem;
      }

      .features-banner {
        padding: 2rem;
        grid-template-columns: 1fr;
      }

      .app-card {
        border-radius: 2rem;
      }
    }

    @media (max-width: 480px) {
      .app-header {
        flex-direction: column;
        text-align: center;
      }

      .app-title {
        font-size: 1.8rem;
      }

      .btn-play {
        padding: 1rem 1.5rem;
      }
    }

    /* SOPORTE PARA PANTALLAS GIGANTES */
    @media (min-width: 2000px) {
      .container {
        max-width: 1800px;
      }

      .hero__logo {
        font-size: 10rem;
      }

      .app-image {
        height: 300px;
      }
    }

    /* PREFERENCIA DE MOVIMIENTO REDUCIDO */
    @media (prefers-reduced-motion: reduce) {
      * {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
      }
    }