/* Landing Global Font */
    .landing-page,
    .landing-page h1,
    .landing-page h2,
    .landing-page h3,
    .landing-page h4,
    .landing-page h5,
    .landing-page h6,
    .landing-page p,
    .landing-page a,
    .landing-page span,
    .landing-page li,
    .landing-page button {
      font-family: 'Quicksand', sans-serif;
    }

    @font-face {
      font-family: 'Gabriola';
      src: url('../fonts/Gabriola.ttf') format('truetype');
      font-weight: normal;
      font-style: normal;
    }

    body {
      opacity: 0;
      transition: opacity 0.3s ease;
    }
    .zeti-title {
      font-family: 'Gabriola' !important;
      font-size: 27.5rem;
      color: #006db5;
      font-weight: 600;
      letter-spacing: 18px;
      margin-bottom: 35px;
    }

    .hero-text {
      display: flex;
      flex-direction: column;
      height: 80px;
    }

    .zeti-subtitle {
      font-size: 30px;
      font-weight: 700;
      width: max-content;
      color: #006db5;
    }

    .zeti-logo {
      width: 330px;
      min-width: 290px;
      filter: drop-shadow(0px 0px 5px black);
    }

    .education-icon {
      width: 460px;
      filter: hue-rotate(176deg);
    }

    .google-play-logo {
      width: 150px;
      margin-top: -20px;
    }

    /* Landing Navbar */
    .landing-navbar {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 1000;
      padding: 15px 0;
      transition: all 0.3s ease;
      background: #0067ab;
    }

    .landing-navbar.scrolled {
      background: #0067abfc;
      box-shadow: 0 2px 20px rgba(0,0,0,0.1);
      padding: 20px 0;
    }

    .landing-navbar .navbar-inner {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
      display: flex;
      align-items: center;
      justify-content: flex-end;
    }

    .landing-navbar .navbar-brand {
      display: flex;
      align-items: center;
      text-decoration: none;
    }

    .landing-navbar .navbar-brand img {
      height: 40px;
      width: auto;
    }

    .landing-navbar .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      margin: 0;
      padding: 0;
      gap: 30px;
    }

    .landing-navbar .nav-links a.active {
      font-weight: bold;
      background: rgba(255,255,255,0.2);
    }

    .landing-navbar .nav-links a {
      color: rgba(255,255,255,0.9);
      text-decoration: none;
      padding: 8px 18px;
      border-radius: 50px;
      font-size: 1.5rem;
      font-family: 'Source Sans Pro', sans-serif;
      font-weight: 600;
      transition: all 0.3s ease;
    }

    .landing-navbar .nav-links a:hover {
      background: rgba(255,255,255,0.2);
      color: white;
    }

    .landing-navbar.scrolled .nav-links a {
      color: #ffffff;
    }

    .landing-navbar.scrolled .nav-links .btn-nav-login:hover {
      background: white;
      color: #0067ab;
    }

    .landing-navbar .nav-links .btn-nav-login {
      background: rgba(255,255,255,0.2);
      border: 1px solid rgba(255,255,255,0.4);
      color: white;
      font-weight: 600;
      display: flex;
      gap: 8px;
      align-items: center;
    }

    .landing-navbar .nav-links .btn-nav-login:hover {
      background: white;
      color: #0067ab;
    }

    .landing-navbar.scrolled .nav-links .btn-nav-login {
      color: white;
    }

    .landing-navbar.scrolled .nav-links .btn-nav-login:hover {
      box-shadow: 0 4px 15px rgba(0, 103, 171, 0.4);
      transform: translateY(-1px);
    }

    .landing-navbar .nav-links .btn-nav-app {
      background: rgba(53, 215, 255, 0.63);
      border: 1px solid rgba(255,255,255,0.4);
      position: relative;
    }

    .landing-navbar .nav-links .btn-nav-app .badge-new {
      position: absolute;
      top: -8px;
      right: -10px;
      background: #ff4d6d;
      color: white;
      font-size: 0.75rem;
      font-weight: 700;
      letter-spacing: 0.04em;
      padding: 4px 6px;
      border-radius: 20px;
      text-transform: uppercase;
      line-height: 1;
      white-space: nowrap;
      animation: badge-pulse 2s ease-in-out infinite;
    }

    @keyframes badge-pulse {
      0%, 100% { box-shadow: 0 0 0 0 rgba(255, 77, 109, 0.6); }
      50%       { box-shadow: 0 0 0 5px rgba(255, 77, 109, 0); }
    }

    /* Mobile toggle */
    .landing-navbar .nav-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: white;
      cursor: pointer;
      padding: 5px 10px;
    }

    .landing-navbar.scrolled .nav-toggle {
      color: #ffffff;
    }

    @media (max-width: 768px) {
      .landing-navbar .nav-toggle {
        display: block;
      }

      .landing-navbar .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 15px 20px;
        box-shadow: 0 5px 20px rgba(0,0,0,0.1);
        gap: 15px;
      }

      .landing-navbar .nav-links.open {
        display: flex;
      }

      .landing-navbar .nav-links a {
        color: #333 !important;
        padding: 10px 18px;
        width: 100%;
        text-align: center;
      }

      .landing-navbar .nav-links a:hover {
        background: rgba(0, 103, 171, 0.1);
        color: #0067ab;
      }

      .landing-navbar .nav-links .btn-nav-login {
        background: linear-gradient(135deg, #0067ab 0%, #004d80 100%);
        border: 1px solid rgba(255,255,255,0.4);
        color: white !important;
        font-weight: 600;
        display: flex;
        gap: 8px;
        align-items: center;
      }
    }

    /* ===== ANIMATED HERO ===== */

    /* Animated gradient background */
    .landing-hero {
      background: linear-gradient(-45deg, #d4eef9, #d6f0fb);
      background-size: 400% 400%;
      animation: heroGradient 15s ease infinite;
      position: relative;
      overflow: hidden;
    }

    @keyframes heroGradient {
      0% { background-position: 0% 50%; }
      25% { background-position: 100% 50%; }
      50% { background-position: 100% 0%; }
      75% { background-position: 0% 100%; }
      100% { background-position: 0% 50%; }
    }

    /* Mesh grid overlay */
    .hero-mesh {
      position: absolute;
      top: 0; left: 0; right: 0; bottom: 0;
      background-image:
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
      background-size: 60px 60px;
      pointer-events: none;
      z-index: 1;
    }

    /* Floating orbs */
    .hero-orb {
      position: absolute;
      border-radius: 50%;
      pointer-events: none;
      z-index: 1;
      filter: blur(1px);
    }

    .hero-orb-1 {
      width: 350px;
      height: 350px;
      background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
      top: -80px;
      right: -60px;
      animation: floatOrb1 20s ease-in-out infinite;
    }

    .hero-orb-2 {
      width: 250px;
      height: 250px;
      background: radial-gradient(circle, rgba(255,255,255,0.06) 0%, transparent 70%);
      bottom: -40px;
      left: -30px;
      animation: floatOrb2 25s ease-in-out infinite;
    }

    .hero-orb-3 {
      width: 180px;
      height: 180px;
      background: radial-gradient(circle, rgba(0,210,255,0.08) 0%, transparent 70%);
      top: 40%;
      left: 60%;
      animation: floatOrb3 18s ease-in-out infinite;
    }

    .hero-orb-4 {
      width: 120px;
      height: 120px;
      background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
      top: 20%;
      left: 15%;
      animation: floatOrb4 22s ease-in-out infinite;
    }

    .hero-orb-5 {
      width: 90px;
      height: 90px;
      background: radial-gradient(circle, rgba(0,180,255,0.07) 0%, transparent 70%);
      bottom: 25%;
      right: 20%;
      animation: floatOrb5 16s ease-in-out infinite;
    }

    @keyframes floatOrb1 {
      0%, 100% { transform: translate(0, 0) scale(1); }
      33% { transform: translate(-40px, 60px) scale(1.1); }
      66% { transform: translate(30px, -30px) scale(0.95); }
    }

    @keyframes floatOrb2 {
      0%, 100% { transform: translate(0, 0) scale(1); }
      33% { transform: translate(50px, -40px) scale(1.05); }
      66% { transform: translate(-20px, 30px) scale(1.1); }
    }

    @keyframes floatOrb3 {
      0%, 100% { transform: translate(0, 0) scale(1); }
      25% { transform: translate(-60px, 30px) scale(1.15); }
      50% { transform: translate(-30px, -50px) scale(0.9); }
      75% { transform: translate(40px, -20px) scale(1.05); }
    }

    @keyframes floatOrb4 {
      0%, 100% { transform: translate(0, 0); }
      50% { transform: translate(35px, 45px); }
    }

    @keyframes floatOrb5 {
      0%, 100% { transform: translate(0, 0); }
      33% { transform: translate(-25px, -35px); }
      66% { transform: translate(20px, 25px); }
    }

    /* Floating particles (small dots) */
    .hero-particles {
      position: absolute;
      top: 0; left: 0; right: 0; bottom: 0;
      pointer-events: none;
      z-index: 1;
      overflow: hidden;
    }

    .hero-particle {
      position: absolute;
      width: 4px;
      height: 4px;
      background: rgba(255,255,255,0.3);
      border-radius: 50%;
      animation: particleFloat linear infinite;
    }

    .hero-particle:nth-child(1) { left: 10%; animation-duration: 12s; animation-delay: 0s; top: 100%; }
    .hero-particle:nth-child(2) { left: 25%; animation-duration: 16s; animation-delay: 2s; top: 100%; width: 3px; height: 3px; }
    .hero-particle:nth-child(3) { left: 40%; animation-duration: 14s; animation-delay: 4s; top: 100%; }
    .hero-particle:nth-child(4) { left: 55%; animation-duration: 18s; animation-delay: 1s; top: 100%; width: 5px; height: 5px; opacity: 0.2; }
    .hero-particle:nth-child(5) { left: 70%; animation-duration: 13s; animation-delay: 3s; top: 100%; }
    .hero-particle:nth-child(6) { left: 85%; animation-duration: 15s; animation-delay: 5s; top: 100%; width: 3px; height: 3px; }
    .hero-particle:nth-child(7) { left: 5%; animation-duration: 20s; animation-delay: 7s; top: 100%; width: 2px; height: 2px; }
    .hero-particle:nth-child(8) { left: 48%; animation-duration: 11s; animation-delay: 6s; top: 100%; }
    .hero-particle:nth-child(9) { left: 92%; animation-duration: 17s; animation-delay: 8s; top: 100%; width: 3px; height: 3px; }
    .hero-particle:nth-child(10) { left: 33%; animation-duration: 19s; animation-delay: 2s; top: 100%; width: 2px; height: 2px; }

    @keyframes particleFloat {
      0% { transform: translateY(0) rotate(0deg); opacity: 0; }
      10% { opacity: 0.4; }
      90% { opacity: 0.4; }
      100% { transform: translateY(-100vh) rotate(720deg); opacity: 0; }
    }

    /* Text entrance animations */
    .hero-content {
      position: relative;
      z-index: 2;
    }

    .hero-animate-title {
      opacity: 0;
      transform: translateY(40px);
      animation: fadeInUp 1s cubic-bezier(0.16, 1, 0.3, 1) 0.3s forwards;
    }

    .hero-animate-subtitle {
      opacity: 0;
      transform: translateY(30px);
      animation: fadeInUp 1s cubic-bezier(0.16, 1, 0.3, 1) 0.6s forwards;
    }

    .hero-animate-buttons {
      opacity: 0;
      transform: translateY(25px);
      animation: fadeInUp 1s cubic-bezier(0.16, 1, 0.3, 1) 0.9s forwards;
    }

    @keyframes fadeInUp {
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    /* Glow line under title */
    .hero-glow-line {
      width: 80px;
      height: 3px;
      background: linear-gradient(90deg, transparent, rgba(255,255,255,0.8), transparent);
      margin: 20px auto 25px;
      border-radius: 2px;
      animation: glowPulse 3s ease-in-out infinite;
    }

    @keyframes glowPulse {
      0%, 100% { width: 80px; opacity: 0.6; }
      50% { width: 140px; opacity: 1; }
    }

    /* Animated badge */
    .hero-badge {
      display: inline-block;
      padding: 6px 20px;
      border: 1px solid rgba(255,255,255,0.3);
      border-radius: 50px;
      font-size: 0.85rem;
      color: rgba(255,255,255,0.9);
      letter-spacing: 2px;
      text-transform: uppercase;
      margin-bottom: 20px;
      backdrop-filter: blur(4px);
      background: rgba(255,255,255,0.08);
      opacity: 0;
      animation: fadeInUp 1s cubic-bezier(0.16, 1, 0.3, 1) 0.1s forwards;
    }

    /* Button hover glow */
    .landing-hero .btn-hero {
      position: relative;
      overflow: hidden;
    }

    .landing-hero .btn-hero::after {
      content: '';
      position: absolute;
      top: -50%;
      left: -50%;
      width: 200%;
      height: 200%;
      background: linear-gradient(
        45deg,
        transparent 30%,
        rgba(255,255,255,0.15) 50%,
        transparent 70%
      );
      transform: translateX(-100%);
      transition: none;
    }

    .landing-hero .btn-hero:hover::after {
      animation: btnShine 0.6s ease forwards;
    }

    @keyframes btnShine {
      to { transform: translateX(100%); }
    }

    /* Scroll indicator */
    .hero-scroll-indicator {
      position: absolute;
      bottom: 30px;

      transform: translateX(-50%);
      z-index: 2;
      opacity: 0;
      animation: fadeInUp 1s cubic-bezier(0.16, 1, 0.3, 1) 1.4s forwards;
    }

    .hero-scroll-indicator a {
      display: flex;
      flex-direction: column;
      align-items: center;
      color: rgba(255,255,255,0.6);
      text-decoration: none;
      font-size: 0.75rem;
      letter-spacing: 2px;
      text-transform: uppercase;
      gap: 8px;
      transition: color 0.3s ease;
    }

    .hero-scroll-indicator a:hover {
      color: white;
    }

    .hero-scroll-indicator .scroll-arrow {
      width: 24px;
      height: 38px;
      border: 2px solid rgba(255,255,255,0.4);
      border-radius: 12px;
      position: relative;
    }

    .hero-scroll-indicator .scroll-arrow::before {
      content: '';
      position: absolute;
      top: 6px;
      left: 50%;
      width: 4px;
      height: 8px;
      background: rgba(255,255,255,0.6);
      border-radius: 2px;
      transform: translateX(-50%);
      animation: scrollBounce 2s ease-in-out infinite;
    }

    @keyframes scrollBounce {
      0%, 100% { top: 6px; opacity: 1; }
      50% { top: 18px; opacity: 0.3; }
    }

    /* Responsive adjustments for hero animations */
    @media (max-width: 768px) {
      .hero-orb-1 { width: 200px; height: 200px; }
      .hero-orb-2 { width: 150px; height: 150px; }
      .hero-orb-3 { width: 100px; height: 100px; }
      .hero-orb-4, .hero-orb-5 { display: none; }
      .hero-scroll-indicator { bottom: 15px; }
    }

    /* Landing body reset */
    .landing-page {
      background: white;
      margin: 0;
      padding: 0;
    }

    /* Landing Footer */
    .landing-footer {
      background: #0067ab;
      color: rgb(255, 255, 255);
      padding: 40px 0 20px;
      font-size: 0.9rem;
      font-weight: 600;
    }

    .landing-footer a {
      color: rgba(255,255,255,0.8);
      text-decoration: none;
      transition: color 0.3s ease;
    }

    .landing-footer a:hover {
      color: #0067ab;
    }

    .landing-footer .footer-bottom {
      margin-top: 0px;
      padding-top: 0px;
      text-align: center;
      font-size: 1.55rem;
    }

    .landing-footer .social-links a {
      display: inline-block;
      width: 36px;
      height: 36px;
      line-height: 36px;
      text-align: center;
      border-radius: 50%;
      background: rgba(255,255,255,0.1);
      margin: 0 5px;
      transition: all 0.3s ease;
    }

    .landing-footer .social-links a:hover {
      background: #0067ab;
      color: white;
    }

    /* Products Slider */
    .products-slider-wrapper {
      position: relative;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .products-slider {
      display: flex;
      overflow: hidden;
      scroll-behavior: smooth;
      gap: 25px;
      padding: 10px 0;
      flex: 1;
    }

    .slider-item {
      min-width: calc(33.333% - 17px);
      flex-shrink: 0;
      transition: transform 0.3s ease;
    }

    .slider-item .landing-product-card {
      margin-bottom: 0;
      min-height: 300px;
    }

    .slider-arrow {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      border: 2px solid #ddd;
      background: white;
      color: #333;
      font-size: 1.1rem;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: all 0.3s ease;
      flex-shrink: 0;
      box-shadow: 0 3px 10px rgba(0,0,0,0.08);
    }

    .slider-arrow:hover {
      background: #0067ab;
      border-color: #0067ab;
      color: white;
      box-shadow: 0 5px 15px rgba(0,103,171,0.3);
    }

    .slider-arrow:disabled {
      opacity: 0.3;
      cursor: default;
    }

    .slider-arrow:disabled:hover {
      background: white;
      border-color: #ddd;
      color: #333;
      box-shadow: 0 3px 10px rgba(0,0,0,0.08);
    }

    .slider-dots {
      display: flex;
      justify-content: center;
      gap: 8px;
      margin-top: 25px;
    }

    .slider-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: #ddd;
      border: none;
      cursor: pointer;
      transition: all 0.3s ease;
      padding: 0;
    }

    .slider-dot.active {
      background: #0067ab;
      transform: scale(1.3);
    }

    @media (max-width: 991px) {
      .slider-item {
        min-width: calc(50% - 13px);
      }
    }

    @media (max-width: 600px) {
      .slider-item {
        min-width: 100%;
      }

      .slider-arrow {
        width: 36px;
        height: 36px;
        font-size: 0.9rem;
      }
    }

    /* ===== FEATURES CARDS ===== */
    .features-section {
      padding-top: 0 !important;
      text-align: center !important;
      padding: 90px 0 110px;
      background: #34b6ed33;
      display: flex;
      justify-content: center;
    }

    .features-container {
      margin: 0;
      margin-top: -125px;
    }

    .features-section .section-header {
      text-align: center;
      margin-bottom: 55px;
    }

    .features-section .section-header h2 {
      font-size: 2.2rem;
      font-weight: 700;
      color: #1a2a3a;
      margin-bottom: 14px;
    }

    .features-section .section-header p {
      font-size: 1.1rem;
      color: #6b7c93;
      max-width: 560px;
      margin: 0 auto;
      line-height: 1.7;
    }

    .features-section .section-header .section-tag {
      display: inline-block;
      padding: 5px 18px;
      background: rgba(0, 103, 171, 0.08);
      color: #0067ab;
      border-radius: 50px;
      font-size: 0.8rem;
      font-weight: 600;
      letter-spacing: 2px;
      text-transform: uppercase;
      margin-bottom: 18px;
    }

    .features-grid {
      display: flex;
      flex-wrap: nowrap;
      gap: 28px;
      margin: 0;
    }

    .feature-card {
      background: white;
      border-radius: 12px;
      padding: 25px 25px 20px;
      box-shadow: 0 2px 16px rgba(0, 0, 0, 0.1);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      position: relative;
      overflow: hidden;
      border: 1px solid rgba(0, 0, 0, 0.04);
      text-align: -webkit-center;
      width: -webkit-fill-available;
    }

    .feature-card:hover {
      transform: translateY(-6px);
      box-shadow: 0 12px 40px rgba(0, 103, 171, 0.14);
    }

    .feature-card:hover::before {
      opacity: 1;
    }

    .feature-card .feature-icon {
      width: 60px;
      height: 60px;
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 0;
      transition: background 0.3s ease;
    }

    .feature-card:hover .feature-icon {
    }

    .feature-card .feature-icon i {
      font-size: 3.4rem;
      color: #0067ab;
      transition: color 0.3s ease;
    }

    .feature-card:hover .feature-icon i {
      color: #1175b8;
    }

    .contact-info {
      display: flex;
      flex-direction: column;
      text-align: left;
      gap: 12px;
      margin-top: 20px;
    }

    .contact-type {
      font-size: 4rem !important;
      color: #f7f7f7 !important;
      font-weight: 800 !important;
      margin-bottom: -30px;
      letter-spacing: 3px;
      font-family: 'Gabriola' !important;
    }

    .feature-card h4 {
      font-size: 1.6rem;
      font-weight: 700;
      color: #1a2a3a;
      margin-bottom: 10px;
      margin-top: 0;
    }

    .feature-card p {
      font-size: 1.2rem;
      color: #727272;
      line-height: 1.65;
      margin: 0;
      font-weight: 500;
    }

    @media (max-width: 991px) {
      .features-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 580px) {
      .features-grid {
        grid-template-columns: 1fr;
      }
      .features-section .section-header h2 {
        font-size: 1.75rem;
      }
    }

    /* ===== SECTION 3: SERVICIOS Y BENEFICIOS ===== */
    .services-section {
      padding: 50px 0 195px;
      background: #f8fafc;
      position: relative;
      overflow: hidden;
    }

    .services-section::before {
      content: '';
      position: absolute;
      inset: 0;
      background-image:
        linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
      background-size: 50px 50px;
      pointer-events: none;
    }

    .services-section .services-inner {
      position: relative;
      z-index: 2;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 70px;
      align-items: center;
      max-width: 1100px;
      margin: 0 auto;
      padding: 0 20px;
    }

    /* Left: Heading + benefits list */
    .services-left .srv-tag {
      display: inline-block;
      padding: 5px 18px;
      background: rgba(255,255,255,0.15);
      border: 1px solid rgba(255,255,255,0.3);
      color: white;
      border-radius: 50px;
      font-size: 0.8rem;
      font-weight: 600;
      letter-spacing: 2px;
      text-transform: uppercase;
      margin-bottom: 20px;
    }

    .services-left h2 {
      font-size: 4.3rem;
      font-weight: 700;
      color: #1a2a3a;
      line-height: 1.25;
      margin-bottom: 16px;
    }

    .services-left h2 span {
      color: #38b7ea;
    }

    .services-left .srv-intro {
      font-size: 2.05rem;
      color: rgba(26, 42, 58, 0.8);
      line-height: 1.7;
      margin-bottom: 40px;
    }

    .benefit-list {
      display: flex;
      flex-direction: column;
      gap: 18px;
    }

    .benefit-item {
      display: flex;
      align-items: flex-start;
      gap: 16px;
      opacity: 0;
      transform: translateX(-30px);
      transition: opacity 0.5s ease, transform 0.5s ease;
    }

    .benefit-item.visible {
      opacity: 1;
      transform: translateX(0);
    }

    .benefit-item:nth-child(1) { transition-delay: 0.05s; }
    .benefit-item:nth-child(2) { transition-delay: 0.15s; }
    .benefit-item:nth-child(3) { transition-delay: 0.25s; }
    .benefit-item:nth-child(4) { transition-delay: 0.35s; }
    .benefit-item:nth-child(5) { transition-delay: 0.45s; }
    .benefit-item:nth-child(6) { transition-delay: 0.55s; }

    .benefit-check {
      flex-shrink: 0;
      width: 28px;
      height: 28px;
      border-radius: 50%;
      background: rgba(255,255,255,0.15);
      border: 1.5px solid rgba(255,255,255,0.4);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-top: 2px;
    }

    .benefit-check i {
      font-size: 1.75rem;
      color: #0067ab;
    }

    .benefit-text strong {
      display: block;
      font-size: 2rem;
      font-weight: 700;
      color: #1a2a3a;
      margin-bottom: 3px;
    }

    .benefit-text span {
      font-size: 1.4rem;
      color: rgba(26, 42, 58, 0.7);
      line-height: 1.5;
    }

    /* Right: Stats + service highlight */
    .services-right {
      display: flex;
      flex-direction: column;
      gap: 24px;
    }

    .stats-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }

    .stat-card {
      background: rgba(255,255,255,0.1);
      border: 1px solid rgba(255,255,255,0.2);
      border-radius: 16px;
      padding: 28px 22px;
      text-align: center;
      backdrop-filter: blur(6px);
      opacity: 0;
      transform: translateY(20px);
      transition: opacity 0.5s ease, transform 0.5s ease;
    }

    .stat-card.visible {
      opacity: 1;
      transform: translateY(0);
    }

    .stat-card:nth-child(1) { transition-delay: 0.1s; }
    .stat-card:nth-child(2) { transition-delay: 0.2s; }
    .stat-card:nth-child(3) { transition-delay: 0.3s; }
    .stat-card:nth-child(4) { transition-delay: 0.4s; }

    .stat-card .stat-number {
      font-size: 2.4rem;
      font-weight: 700;
      color: #1a2a3a;
      line-height: 1;
      margin-bottom: 6px;
    }

    .stat-card .stat-number .stat-suffix {
      font-size: 1.6rem;
      font-weight: 600;
    }

    .stat-card .stat-label {
      font-size: 0.85rem;
      color: rgba(255,255,255,0.7);
      font-weight: 500;
    }

    .service-highlight-card {
      background: rgba(255,255,255,0.12);
      border: 1px solid rgba(255,255,255,0.25);
      border-radius: 16px;
      padding: 26px 28px;
      backdrop-filter: blur(6px);
      display: flex;
      align-items: center;
      gap: 20px;
      opacity: 0;
      transform: translateY(20px);
      transition: opacity 0.5s ease 0.5s, transform 0.5s ease 0.5s;
    }

    .service-highlight-card.visible {
      opacity: 1;
      transform: translateY(0);
    }

    .srv-highlight-icon {
      flex-shrink: 0;
      width: 56px;
      height: 56px;
      border-radius: 14px;
      background: rgba(255,255,255,0.18);
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .srv-highlight-icon i {
      font-size: 1.6rem;
      color: white;
    }

    .srv-highlight-text strong {
      display: block;
      font-size: 1.05rem;
      font-weight: 700;
      color: white;
      margin-bottom: 5px;
    }

    .srv-highlight-text span {
      font-size: 0.9rem;
      color: rgba(255,255,255,0.75);
      line-height: 1.5;
    }

    @media (max-width: 900px) {
      .services-section .services-inner {
        grid-template-columns: 1fr;
        gap: 50px;
      }
      .services-left h2 {
        font-size: 1.9rem;
      }
    }

    @media (max-width: 480px) {
      .stats-grid {
        grid-template-columns: 1fr 1fr;
      }
      .services-section {
        padding: 70px 0;
      }
    }

    /* ===== SECTION 4: APP ZETI ===== */
    .app-section {
      padding: 75px 0 150px;
      background: #0067ab;
      position: relative;
      overflow: hidden;
    }

    .app-inner {
      position: relative;
      z-index: 2;
      display: flex;
      flex-direction: row;
      gap: 60px;
      max-width: 1420px;
      margin: 0 auto;
      padding: 0 20px;
    }

    .app-left {
      text-align: center;
    }

    /* App device image animation */
    .app-device-img {
      filter: drop-shadow(0 25px 30px rgba(0,0,0,0.35));
      transition: filter 0.3s ease;
      display: block;
      max-width: 100%;
    }

    .app-device-wrapper {
      position: relative;
      display: inline-block;
      animation: deviceFloat 4s ease-in-out infinite;
    }

    .app-device-wrapper:hover {
      animation-play-state: paused;
    }

    @keyframes deviceFloat {
      0%, 100% { transform: translateY(0); }
      50% { transform: translateY(-14px); }
    }

    .app-device-img:hover {
      filter: drop-shadow(0 30px 35px rgba(0,0,0,0.4));
    }

    /* ===== GRUPO DE 3 TELÉFONOS MOCKUP ===== */
    .app-phones-group {
      display: flex;
      align-items: flex-end;
      justify-content: center;
      gap: 0;
      margin-bottom: 24px;
      position: relative;
      cursor: pointer;
    }

    .app-phones-group .app-device-wrapper {
      position: relative;
      display: inline-block;
      animation: deviceFloat 4s ease-in-out infinite;
    }

    .app-phones-group .phone-side {
      width: 260px;
      opacity: 1;
    }

    .app-phones-group .phone-main {
      width: 330px;
      z-index: 2;
      margin: 0 -115px;
    }

    .app-phones-group .phone-left {
    }

    .app-phones-group .phone-right {
    }

    /* QR Code Overlay */
    .qr-overlay {
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%) scale(0.8);
      background: white;
      padding: 24px;
      border-radius: 12px;
      box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
      z-index: 100;
      opacity: 0;
      pointer-events: none;
      transition: all 0.3s ease-in-out;
      text-align: -webkit-center;
    }

    .app-phones-group:hover .qr-overlay {
      opacity: 1;
      transform: translate(-50%, -50%) scale(1);
      pointer-events: auto;
    }

    .app-left:hover .google-play-logo,
    .app-left:hover a {
      transition: all 0.4s ease-in-out;
      margin-top: -240px !important;
    }

    .qr-overlay img {
      width: 200px;
      height: 200px;
      margin-bottom: 16px;
      display: block;
    }

    .qr-overlay p {
      font-size: 14px;
      font-weight: 600;
      color: #333;
      margin: 0;
      line-height: 1.4;
    }

    /* Dimming effect para teléfonos cuando aparece QR */
    .app-phones-group:hover .phone-screen-a,
    .app-phones-group:hover .phone-screen-b {
      display: block;
      opacity: 0 !important;
      transition: opacity 0.3s ease-in-out;
    }


    /* Imágenes dentro de cada teléfono — JS controls switching */
    .phone-screen-a,
    .phone-screen-b {
      display: block;
      width: 100%;
      filter: drop-shadow(0 20px 28px rgba(0, 0, 0, 0.51));
      border-radius: 18px;
      transition: opacity 0.2s ease-in-out;
    }

    .phone-screen-a {
      opacity: 1;
    }

    .phone-screen-b {
      position: absolute;
      top: 0;
      left: 0;
      opacity: 0;
    }

    .app-left .app-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 5px 16px;
      background: rgba(0,148,212,0.15);
      border: 1px solid rgba(0,148,212,0.35);
      color: #60c0f0;
      border-radius: 50px;
      font-size: 0.8rem;
      font-weight: 600;
      letter-spacing: 2px;
      text-transform: uppercase;
      margin-bottom: 22px;
    }

    .app-left h2 {
      font-size: 2.4rem;
      font-weight: 700;
      color: white;
      line-height: 1.2;
      margin-bottom: 16px;
    }

    .app-left h2 span {
      color: #60c0f0;
    }

    .app-left .app-intro {
      font-size: 1rem;
      color: rgba(255,255,255,0.65);
      line-height: 1.75;
      margin-bottom: 30px;
    }

    .zeti-app-title {
      text-align: center;
      font-size: 6.1rem;
      font-weight: 600;
      color: white;
      margin-bottom: 50px;
      margin-top: -65px;
      /* Animación scroll: slide desde izquierda */
      opacity: 0;
      transform: translateX(-80px);
      transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
                  transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .zeti-app-title.visible {
      opacity: 1;
      transform: translateX(0);
    }

    .app-features-mini {
      list-style: none;
      padding: 0;
      margin: 0 0 36px 0;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .app-features-mini li {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 0.95rem;
      color: rgba(255,255,255,0.8);
    }

    .app-features-mini li i {
      color: #60c0f0;
      font-size: 1rem;
      flex-shrink: 0;
    }

    .app-store-buttons {
      display: flex;
      gap: 14px;
      flex-wrap: wrap;
    }

    .store-btn {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 12px 20px;
      background: rgba(255,255,255,0.08);
      border: 1px solid rgba(255,255,255,0.15);
      border-radius: 12px;
      text-decoration: none;
      transition: all 0.3s ease;
      min-width: 160px;
    }

    .store-btn:hover {
      background: rgba(255,255,255,0.14);
      border-color: rgba(255,255,255,0.3);
      transform: translateY(-2px);
    }

    .store-btn i {
      font-size: 1.9rem;
      color: white;
    }

    .store-btn div span {
      display: block;
      font-size: 0.7rem;
      color: rgba(255,255,255,0.55);
      font-weight: 400;
      letter-spacing: 0.5px;
    }

    .store-btn div strong {
      display: block;
      font-size: 1rem;
      color: white;
      font-weight: 700;
    }

    .access-card {
      background: white;
      border-radius: 20px;
      padding: 10px 32px 32px;
      box-shadow: 0 20px 60px rgba(0,0,0,0.3);
      position: relative;
      overflow: hidden;
      width: 600px;
    }

    .access-badge {
      display: inline-block;
      padding: 4px 14px;
      background: rgba(0,103,171,0.08);
      color: #0067ab;
      border-radius: 50px;
      font-size: 0.75rem;
      font-weight: 700;
      letter-spacing: 1.5px;
      text-transform: uppercase;
      margin-bottom: 16px;
    }

    .access-card h3 {
      font-size: 3.8rem;
      font-weight: 700;
      color: #1a2a3a;
      line-height: 1.3;
      margin-bottom: 10px;
    }

    .access-card > p {
      font-size: 1.5rem;
      color: #5a6a7a;
      line-height: 1.65;
      margin-bottom: 26px;
    }

    .access-includes {
      background: #f4f8fc;
      border-radius: 12px;
      padding: 18px 20px;
      margin-bottom: 26px;
    }

    .access-includes .includes-title {
      font-size: 1.8rem;
      font-weight: 700;
      color: #0067ab;
      text-transform: uppercase;
      letter-spacing: 1px;
      margin-bottom: 12px;
    }

    .access-includes ul {
      list-style: none;
      padding: 0;
      margin: 0;
      display: flex;
      flex-direction: column;
      gap: 13px;
    }

    .access-includes ul li {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.5rem;
      color: #2a3a4a;
      font-weight: 500;
    }

    .access-includes ul li i {
      color: #0067ab;
      font-size: 1.5rem;
      flex-shrink: 0;
    }

    .btn-get-access {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      width: 100%;
      padding: 15px 20px;
      background: linear-gradient(135deg, #0067ab, #0094d4);
      color: white;
      border-radius: 12px;
      font-size: 1.6rem;
      font-weight: 700;
      text-decoration: none;
      transition: all 0.3s ease;
      box-shadow: 0 6px 20px rgba(0,103,171,0.35);
      margin-bottom: 12px;
    }

    .btn-get-access i {
      font-size: 1.2rem;
    }

    .btn-get-access:hover {
      transform: translateY(-2px);
      box-shadow: 0 10px 28px rgba(0,103,171,0.45);
      color: white;
    }

    .btn-get-beta {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      width: 100%;
      padding: 15px 20px;
      background: linear-gradient(135deg, #0067ab, #0094d4);
      color: white;
      border-radius: 12px;
      font-size: 1.6rem;
      font-weight: 700;
      text-decoration: none;
      transition: all 0.3s ease;
      box-shadow: 0 6px 20px rgba(0,103,171,0.35);
      margin-bottom: 12px;
    }

    .btn-get-beta i {
      font-size: 1.2rem;
    }

    .btn-get-beta:hover {
      transform: translateY(-2px);
      box-shadow: 0 10px 28px rgba(0,103,171,0.45);
      color: white;
    }

    .access-footnote {
      text-align: center;
      font-size: 0.8rem;
      color: #8a9aaa;
      margin: 0;
    }

    @media (max-width: 900px) {
      .app-inner {
        grid-template-columns: 1fr;
        gap: 50px;
      }
      .app-left h2 {
        font-size: 2rem !important;
      }
    }

    @media (max-width: 480px) {
      .app-section { padding: 70px 0; }
      .app-store-buttons { flex-direction: column; }
      .store-btn { min-width: unset; }
      .app-phones-group .phone-side { width: 150px; }
      .app-phones-group .phone-main { width: 190px; margin: 0 -70px; }
      .app-phones-group { gap: 8px; }
    }

    /* ============================================================
       COMPREHENSIVE RESPONSIVE SYSTEM
       24" / 1920px+  → sin cambios (desktop base)
       ≤1440px        → laptops grandes
       ≤1280px        → laptops estándar
       ≤1024px        → laptops pequeñas / tablets landscape
       ≤768px         → tablets portrait
       ≤576px         → teléfonos grandes
       ≤480px         → teléfonos medianos
       ≤360px         → teléfonos pequeños
    ============================================================ */

    /* ── ≤1440px: laptops grandes ── */
    @media (max-width: 1440px) {
      .zeti-title { font-size: 20rem; }
      .features-grid { grid-template-columns: repeat(3, 1fr); max-width: 960px; }
    }

    /* ── ≤1280px: laptops estándar ── */
    @media (max-width: 1280px) {
      .zeti-title { font-size: 16rem; }
    }

    /* ── ≤1024px: laptops pequeñas / tablets landscape ── */
    @media (max-width: 1024px) {
      .zeti-title { font-size: 11rem; letter-spacing: 6px; }
      .zeti-subtitle { font-size: 24px; }
      .zeti-logo { width: 260px; }

      .services-left h2 { font-size: 2.8rem; }
      .services-left .srv-intro { font-size: 1.4rem; }
      .benefit-text strong { font-size: 1.5rem; }
      .benefit-text span { font-size: 1rem; }

      .zeti-app-title { font-size: 4rem; }
      .access-card h3 { font-size: 2.5rem; }
      .access-card > p { font-size: 1.2rem; }
      .access-includes .includes-title { font-size: 1.3rem; }
      .access-includes ul li { font-size: 1.2rem; }
      .btn-get-access { font-size: 1.3rem; }
      .btn-get-beta { font-size: 1.3rem; }
    }

    /* ── ≤768px: tablets portrait ── */
    @media (max-width: 768px) {
      /* Hero: apilar verticalmente */
      .hero-section .modern-container {
        flex-direction: column !important;
        text-align: center;
        align-items: center;
        gap: 20px;
        padding-bottom: 40px;
      }
      .zeti-title { font-size: 7rem; letter-spacing: 4px; margin-bottom: 15px; }
      .zeti-subtitle { font-size: 18px; width: auto; max-width: 100%; }
      .zeti-logo { width: 190px; min-width: unset; }

      /* Services */
      .services-inner { padding: 0 16px; }
      .services-left h2 { font-size: 2.2rem; }
      .services-left .srv-intro { font-size: 1.3rem; }
      .benefit-text strong { font-size: 1.3rem; }
      .benefit-text span { font-size: 1rem; }
      .education-icon { width: 100%; max-width: 320px; display: block; margin: 0 auto; }

      /* App */
      .zeti-app-title { font-size: 2.8rem; margin-bottom: 25px; text-align: center; }
      .app-inner { padding: 0 16px; }
      .access-card h3 { font-size: 2rem; }
      .access-card > p { font-size: 1.1rem; }
      .access-includes .includes-title { font-size: 1.1rem; }
      .access-includes ul li { font-size: 1.1rem; }
      .btn-get-access { font-size: 1.1rem; }
      .btn-get-beta { font-size: 1.1rem; }
    }

    /* ── ≤576px: teléfonos grandes ── */
    @media (max-width: 576px) {
      /* Hero */
      .hero-section .modern-container {
        flex-direction: column !important;
        align-items: center;
        text-align: center;
        padding: 20px 16px 90px;
        gap: 12px;
      }
      .zeti-title { font-size: 4.8rem; letter-spacing: 3px; margin-bottom: 10px; }
      .zeti-subtitle { font-size: 15px; width: auto; max-width: 100%; }
      .zeti-logo { width: 150px; }

      /* Features */
      .features-section { padding: 45px 0 20px; }
      .features-container { margin-top: -110px; }
      .feature-card { padding: 26px 20px 22px; }

      /* Services */
      .services-section { padding: 0px 0 60px; }
      .services-inner { padding: 0 16px; }
      .services-left h2 { font-size: 1.85rem; }
      .services-left .srv-intro { font-size: 1.05rem; }
      .benefit-text strong { font-size: 2.05rem; }
      .benefit-text span { font-size: 1.88rem; }
      .benefit-check { width: 24px; height: 24px; }
      .benefit-check i { font-size: 1.1rem; }
      .education-icon { max-width: 380px; }

      /* App */
      .app-section { padding: 50px 0 65px; }
      .zeti-app-title { font-size: 1.85rem; margin-bottom: 18px; margin-top: 0; }
      .app-inner { padding: 0 16px; flex-direction: column; }
      .access-card { padding: 24px 18px 20px; width: 380px; }
      .access-card h3 { font-size: 1.6rem; }
      .access-card > p { font-size: 1rem; }
      .access-includes { padding: 14px 14px; }
      .access-includes .includes-title { font-size: 1.9rem; }
      .access-includes ul li { font-size: 0.92rem; }
      .access-includes ul { gap: 9px; }
      .btn-get-access { font-size: 1rem; padding: 13px 14px; }
      .btn-get-beta { font-size: 1rem; padding: 13px 14px; }
      .access-footnote { font-size: 0.78rem; }

      /* Contact Service */
      .section-subtitle { font-size: 2.4rem; }
      .contact-card { padding: 34px 30px; width: max-content; }
      .contact-card h4 { font-size: 2.5rem; }
      .contact-card a { font-size: 1.8rem; }
    }

    /* ── ≤480px: teléfonos medianos ── */
    @media (max-width: 480px) {
      .zeti-title { font-size: 13.6rem; letter-spacing: 2px; }
      .zeti-subtitle { font-size: 22px; }
      .zeti-logo { width: 165px; margin-top: 80px; }

      .features-grid { gap: 16px; display: flow }
      .feature-card { padding: 22px 16px 18px; margin-bottom: 15px; }
      .feature-card h4 { font-size: 1.8rem; }
      .feature-card p { font-size: 1.35rem; }

      .services-left h2 { font-size: 4.5rem; }
      .services-left .srv-intro { font-size: 1.98rem; }
      .srv-tag { font-size: 0.7rem; padding: 4px 14px; }

      .zeti-app-title { font-size: 4.25rem; }
      .access-card h3 { font-size: 3rem; }
      .access-card > p { font-size: 1.8rem; }
      .access-includes ul li { font-size: 1.5rem; }
      .btn-get-access { font-size: 1.72rem; }
      .btn-get-beta { font-size: 1.72rem; }
    }