:root {
      --blue: #1a3a8f;
      --blue-mid: #1e50c8;
      --blue-light: #3b7de8;
      --green: #4caf1a;
      --green-dark: #3a8f13;
      --yellow: #f5c518;
      --white: #ffffff;
      --off-white: #f4f7ff;
      --text-dark: #0e1b3d;
      --text-mid: #3a4a6b;
      --text-light: #6b7a9e;
      --border: #dde4f5;
      --shadow: 0 8px 40px rgba(26,58,143,0.12);
    }

    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

    html { scroll-behavior: smooth; }

    body {
      font-family: 'DM Sans', sans-serif;
      color: var(--text-dark);
      background: var(--white);
      overflow-x: hidden;
    }

    h1, h2, h3, h4 {
      font-family: 'Syne', sans-serif;
    }

    /* ── NAV ── */
    nav {
      position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
      background: rgba(255,255,255,0.95);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border);
      padding: 0 1.5rem;
      height: 68px;
      display: flex; align-items: center; justify-content: space-between;
      transition: box-shadow 0.3s;
    }
    nav.scrolled { box-shadow: 0 2px 24px rgba(26,58,143,0.10); }

    .nav-logo img { height: 46px; display: block; }

    .nav-links {
      display: flex; gap: 2rem; list-style: none;
      align-items: center;
    }
    .nav-links a {
      text-decoration: none; font-weight: 500; font-size: 0.95rem;
      color: var(--text-mid); transition: color 0.2s;
      font-family: 'Syne', sans-serif;
    }
    .nav-links a:hover { color: var(--blue-mid); }
    .nav-links .cta-nav {
      background: var(--green); color: var(--white) !important;
      padding: 0.5rem 1.2rem; border-radius: 50px;
      font-weight: 600; transition: background 0.2s, transform 0.2s;
    }
    .nav-links .cta-nav:hover { background: var(--green-dark); transform: translateY(-1px); }

    .hamburger {
      display: none; flex-direction: column; gap: 5px; cursor: pointer;
      background: none; border: none; padding: 4px;
    }
    .hamburger span {
      display: block; width: 26px; height: 2.5px;
      background: var(--blue); border-radius: 2px;
      transition: all 0.3s;
    }
    .hamburger.open span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
    .hamburger.open span:nth-child(2) { opacity: 0; }
    .hamburger.open span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

    .mobile-menu {
      display: none; position: fixed; top: 68px; left: 0; right: 0; bottom: 0;
      background: var(--white); z-index: 999;
      flex-direction: column; align-items: center; justify-content: center;
      gap: 2rem;
    }
    .mobile-menu.open { display: flex; }
    .mobile-menu a {
      font-family: 'Syne', sans-serif; font-size: 1.5rem; font-weight: 700;
      color: var(--text-dark); text-decoration: none; transition: color 0.2s;
    }
    .mobile-menu a:hover { color: var(--blue-mid); }
    .mobile-menu .cta-nav {
      background: var(--green); color: var(--white) !important;
      padding: 0.75rem 2rem; border-radius: 50px; font-size: 1.1rem;
    }

    /* ── HERO ── */
    #inicio {
      min-height: 100vh;
      background: linear-gradient(135deg, #0e1b3d 0%, #1a3a8f 50%, #1e50c8 100%);
      display: flex; align-items: center;
      padding: 100px 1.5rem 60px;
      position: relative; overflow: hidden;
    }
    #inicio::before {
      content: ''; position: absolute; inset: 0;
      background: radial-gradient(ellipse 80% 60% at 60% 40%, rgba(76,175,26,0.12) 0%, transparent 70%),
                  radial-gradient(ellipse 60% 80% at 10% 80%, rgba(245,197,24,0.08) 0%, transparent 60%);
    }
    .hero-inner {
      max-width: 1200px; margin: 0 auto; width: 100%;
      display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center;
      position: relative; z-index: 1;
    }
    .hero-text { color: var(--white); }
    .hero-badge {
      display: inline-flex; align-items: center; gap: 0.5rem;
      background: rgba(76,175,26,0.2); border: 1px solid rgba(76,175,26,0.4);
      color: #7cef3a; font-size: 0.82rem; font-weight: 600;
      padding: 0.35rem 0.9rem; border-radius: 50px; margin-bottom: 1.5rem;
      letter-spacing: 0.05em; text-transform: uppercase;
    }
    .hero-badge i { font-size: 0.75rem; }
    .hero-title {
      font-size: clamp(2.2rem, 4vw, 3.4rem);
      font-weight: 800; line-height: 1.1; margin-bottom: 0.5rem;
      letter-spacing: -0.02em;
    }
    .hero-title span { color: var(--yellow); }
    .hero-subtitle {
      font-size: 1.1rem; color: rgba(255,255,255,0.75);
      line-height: 1.7; margin-bottom: 2rem; max-width: 480px;
    }
    .hero-btns { display: flex; gap: 1rem; flex-wrap: wrap; }
    .btn-primary {
      display: inline-flex; align-items: center; gap: 0.5rem;
      background: var(--green); color: var(--white);
      padding: 0.85rem 1.8rem; border-radius: 50px;
      font-weight: 600; font-family: 'Syne', sans-serif;
      text-decoration: none; font-size: 1rem;
      transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
      box-shadow: 0 4px 20px rgba(76,175,26,0.35);
    }
    .btn-primary:hover { background: var(--green-dark); transform: translateY(-2px); box-shadow: 0 8px 30px rgba(76,175,26,0.4); }
    .btn-secondary {
      display: inline-flex; align-items: center; gap: 0.5rem;
      background: transparent; color: var(--white);
      padding: 0.85rem 1.8rem; border-radius: 50px;
      font-weight: 600; font-family: 'Syne', sans-serif;
      text-decoration: none; font-size: 1rem;
      border: 2px solid rgba(255,255,255,0.35);
      transition: border-color 0.2s, background 0.2s;
    }
    .btn-secondary:hover { border-color: rgba(255,255,255,0.7); background: rgba(255,255,255,0.08); }

    .hero-stats {
      display: flex; gap: 2rem; margin-top: 2.5rem; flex-wrap: wrap;
    }
    .stat { border-left: 3px solid var(--green); padding-left: 0.8rem; }
    .stat-num { font-family: 'Syne', sans-serif; font-size: 1.6rem; font-weight: 800; color: var(--white); }
    .stat-label { font-size: 0.82rem; color: rgba(255,255,255,0.55); margin-top: 0.1rem; }

    .hero-image {
      position: relative; display: flex; justify-content: center; align-items: center;
    }
    .hero-image img {
      width: 100%; max-width: 540px; border-radius: 16px;
      box-shadow: 0 24px 80px rgba(0,0,0,0.4);
      transform: perspective(1000px) rotateY(-5deg) rotateX(2deg);
      transition: transform 0.5s;
    }
    .hero-image:hover img { transform: perspective(1000px) rotateY(-2deg) rotateX(1deg); }
    .hero-image::after {
      content: ''; position: absolute; inset: -20px;
      background: radial-gradient(ellipse at center, rgba(76,175,26,0.15) 0%, transparent 70%);
      border-radius: 50%; pointer-events: none;
    }

    /* ── SECTIONS COMMON ── */
    section { padding: 90px 1.5rem; }
    .section-inner { max-width: 1200px; margin: 0 auto; }
    .section-tag {
      display: inline-block; font-size: 0.78rem; font-weight: 700;
      text-transform: uppercase; letter-spacing: 0.1em;
      color: var(--blue-mid); background: rgba(30,80,200,0.08);
      padding: 0.3rem 0.9rem; border-radius: 50px; margin-bottom: 1rem;
    }
    .section-title {
      font-size: clamp(1.8rem, 3vw, 2.6rem); font-weight: 800;
      line-height: 1.15; letter-spacing: -0.02em; margin-bottom: 1rem;
    }
    .section-desc {
      font-size: 1.05rem; color: var(--text-mid);
      line-height: 1.8; max-width: 640px;
    }

    /* ── SERVICIOS ── */
    #servicios { background: var(--off-white); }
    .services-header { text-align: center; margin-bottom: 3.5rem; }
    .services-header .section-desc { margin: 0 auto; }
    .services-grid {
      display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 1.5rem;
    }
    .service-card {
      background: var(--white); border-radius: 16px;
      padding: 2rem; border: 1px solid var(--border);
      transition: transform 0.25s, box-shadow 0.25s;
      position: relative; overflow: hidden;
    }
    .service-card::before {
      content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
      background: linear-gradient(90deg, var(--blue-mid), var(--green));
      opacity: 0; transition: opacity 0.3s;
    }
    .service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
    .service-card:hover::before { opacity: 1; }
    .service-icon {
      width: 54px; height: 54px; border-radius: 14px;
      background: linear-gradient(135deg, var(--blue-mid), var(--blue-light));
      display: flex; align-items: center; justify-content: center;
      font-size: 1.4rem; color: var(--white); margin-bottom: 1.2rem;
      box-shadow: 0 6px 20px rgba(30,80,200,0.25);
    }
    .service-card h3 {
      font-size: 1.1rem; font-weight: 700; margin-bottom: 0.6rem;
      color: var(--text-dark);
    }
    .service-card p { font-size: 0.92rem; color: var(--text-mid); line-height: 1.7; }

    .services-cta {
      text-align: center; margin-top: 3rem;
    }

    /* ── NOSOTROS ── */
    #nosotros {
      background: var(--white);
    }
    .nosotros-inner {
      display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center;
    }
    .nosotros-image { position: relative; }
    .nosotros-image img {
      width: 100%; border-radius: 20px;
      box-shadow: 0 20px 60px rgba(26,58,143,0.15);
    }
    .nosotros-image .badge-float {
      position: absolute; bottom: -20px; right: -20px;
      background: var(--green); color: var(--white);
      padding: 1.2rem 1.5rem; border-radius: 16px;
      font-family: 'Syne', sans-serif; font-weight: 800;
      text-align: center; box-shadow: 0 8px 30px rgba(76,175,26,0.35);
    }
    .nosotros-image .badge-float .big { font-size: 2rem; display: block; }
    .nosotros-image .badge-float .small { font-size: 0.78rem; opacity: 0.85; }

    .nosotros-text .section-title { margin-bottom: 1.2rem; }
    .nosotros-text p {
      font-size: 1rem; color: var(--text-mid); line-height: 1.8; margin-bottom: 1.2rem;
    }
    .pillars {
      display: flex; flex-direction: column; gap: 0.75rem; margin-top: 1.5rem;
    }
    .pillar {
      display: flex; align-items: center; gap: 1rem;
      background: var(--off-white); border-radius: 12px; padding: 0.85rem 1.1rem;
    }
    .pillar-icon {
      width: 38px; height: 38px; border-radius: 10px;
      background: linear-gradient(135deg, var(--blue-mid), var(--blue-light));
      display: flex; align-items: center; justify-content: center;
      color: var(--white); font-size: 1rem; flex-shrink: 0;
    }
    .pillar-text { font-weight: 600; font-size: 0.95rem; color: var(--text-dark); }
    .pillar-sub { font-size: 0.82rem; color: var(--text-light); }

    /* ── CONTACTO ── */
    #contacto {
      background: linear-gradient(135deg, #0e1b3d 0%, #1a3a8f 100%);
      color: var(--white);
    }
    .contacto-inner {
      display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: start;
    }
    .contacto-info .section-title { color: var(--white); }
    .contacto-info .section-tag { color: #7cef3a; background: rgba(76,175,26,0.15); }
    .contacto-info .section-desc { color: rgba(255,255,255,0.7); margin-bottom: 2rem; }
    .contact-details { display: flex; flex-direction: column; gap: 1rem; }
    .contact-item {
      display: flex; align-items: center; gap: 1rem;
      font-size: 0.95rem; color: rgba(255,255,255,0.85);
    }
    .contact-item i {
      width: 38px; height: 38px; background: rgba(255,255,255,0.1);
      border-radius: 10px; display: flex; align-items: center; justify-content: center;
      font-size: 1rem; color: var(--green); flex-shrink: 0;
    }
    .contact-item a { color: rgba(255,255,255,0.85); text-decoration: none; }
    .contact-item a:hover { color: var(--white); }

    .contact-form {
      background: var(--white); border-radius: 20px;
      padding: 2.5rem; box-shadow: 0 24px 80px rgba(0,0,0,0.25);
    }
    .contact-form h3 {
      font-size: 1.3rem; font-weight: 700; color: var(--text-dark); margin-bottom: 1.5rem;
    }
    .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
    .form-group { margin-bottom: 1rem; }
    .form-group label {
      display: block; font-size: 0.82rem; font-weight: 600;
      color: var(--text-mid); margin-bottom: 0.35rem;
    }
    .form-group input,
    .form-group textarea {
      width: 100%; padding: 0.75rem 1rem;
      border: 1.5px solid var(--border); border-radius: 10px;
      font-family: 'DM Sans', sans-serif; font-size: 0.95rem;
      color: var(--text-dark); background: var(--off-white);
      transition: border-color 0.2s, box-shadow 0.2s; outline: none;
    }
    .form-group input:focus,
    .form-group textarea:focus {
      border-color: var(--blue-mid); box-shadow: 0 0 0 3px rgba(30,80,200,0.1);
      background: var(--white);
    }
    .form-group textarea { resize: vertical; min-height: 110px; }
    .btn-form {
      width: 100%; padding: 0.9rem;
      background: linear-gradient(135deg, var(--blue-mid), var(--blue-light));
      color: var(--white); border: none; border-radius: 10px;
      font-family: 'Syne', sans-serif; font-weight: 700; font-size: 1rem;
      cursor: pointer; transition: transform 0.2s, box-shadow 0.2s;
      box-shadow: 0 4px 20px rgba(30,80,200,0.3);
    }
    .btn-form:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(30,80,200,0.4); }

    /* ── FOOTER ── */
    footer {
      background: #080f24; color: rgba(255,255,255,0.6);
      padding: 3rem 1.5rem 2rem;
    }
    .footer-inner {
      max-width: 1200px; margin: 0 auto;
      display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 3rem;
    }
    .footer-brand img { height: 40px; margin-bottom: 1rem; filter: brightness(0) invert(1); opacity: 0.9; }
    .footer-brand p { font-size: 0.88rem; line-height: 1.7; }
    .footer-col h4 {
      font-family: 'Syne', sans-serif; font-weight: 700;
      color: var(--white); font-size: 0.95rem; margin-bottom: 1rem;
    }
    .footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 0.5rem; }
    .footer-col ul a {
      color: rgba(255,255,255,0.6); text-decoration: none; font-size: 0.88rem;
      transition: color 0.2s;
    }
    .footer-col ul a:hover { color: var(--white); }
    .social-links { display: flex; gap: 0.75rem; margin-top: 1rem; }
    .social-link {
      width: 38px; height: 38px; border-radius: 10px;
      background: rgba(255,255,255,0.08);
      display: flex; align-items: center; justify-content: center;
      color: rgba(255,255,255,0.6); text-decoration: none; font-size: 1rem;
      transition: background 0.2s, color 0.2s;
    }
    .social-link:hover { background: var(--blue-mid); color: var(--white); }
    .footer-bottom {
      max-width: 1200px; margin: 2rem auto 0;
      padding-top: 1.5rem; border-top: 1px solid rgba(255,255,255,0.08);
      display: flex; justify-content: space-between; align-items: center;
      font-size: 0.82rem; flex-wrap: wrap; gap: 0.5rem;
    }

    /* ── WHATSAPP FLOAT ── */
    .whatsapp-float {
      position: fixed; bottom: 28px; right: 28px; z-index: 9999;
      width: 60px; height: 60px; border-radius: 50%;
      background: #25d366;
      display: flex; align-items: center; justify-content: center;
      font-size: 1.8rem; color: var(--white);
      text-decoration: none;
      box-shadow: 0 6px 28px rgba(37,211,102,0.5);
      transition: transform 0.25s, box-shadow 0.25s;
      animation: pulse-wa 2.5s infinite;
    }
    .whatsapp-float:hover { transform: scale(1.1); box-shadow: 0 10px 40px rgba(37,211,102,0.6); animation: none; }
    @keyframes pulse-wa {
      0%, 100% { box-shadow: 0 6px 28px rgba(37,211,102,0.5); }
      50% { box-shadow: 0 6px 28px rgba(37,211,102,0.5), 0 0 0 12px rgba(37,211,102,0.1); }
    }

    /* ── ANIMATIONS ── */
    .fade-up {
      opacity: 0; transform: translateY(30px);
      transition: opacity 0.6s, transform 0.6s;
    }
    .fade-up.visible { opacity: 1; transform: translateY(0); }

    /* ── RESPONSIVE ── */
    @media (max-width: 1024px) {
      .hero-inner { gap: 2rem; }
      .nosotros-inner { gap: 2.5rem; }
      .contacto-inner { gap: 2.5rem; }
      .footer-inner { grid-template-columns: 1fr 1fr; }
      .footer-brand { grid-column: 1 / -1; }
    }
    @media (max-width: 768px) {
      .nav-links { display: none; }
      .hamburger { display: flex; }
      .hero-inner { grid-template-columns: 1fr; }
      .hero-image { display: none; }
      .hero-text { text-align: center; }
      .hero-subtitle { margin: 0 auto 2rem; }
      .hero-btns { justify-content: center; }
      .hero-stats { justify-content: center; }
      .nosotros-inner { grid-template-columns: 1fr; }
      .nosotros-image .badge-float { right: 10px; bottom: -10px; }
      .contacto-inner { grid-template-columns: 1fr; }
      .form-row { grid-template-columns: 1fr; }
      .footer-inner { grid-template-columns: 1fr; gap: 2rem; }
      .footer-bottom { flex-direction: column; text-align: center; }
    }
    @media (max-width: 480px) {
      section { padding: 70px 1rem; }
      .contact-form { padding: 1.5rem; }
    }