:root {
            --azul-oscuro: #0b2635;
            --azul: #164e63;
            --celeste: #38bdf8;
            --verde: #166534;
            --verde-claro: #22c55e;
            --negro: #111827;
            --gris: #f1f5f9;
            --gris-texto: #64748b;
            --blanco: #ffffff;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            color: var(--negro);
            background: var(--blanco);
        }

        /* =========================
           TOP BAR
        ========================= */

        .top-bar {
            background: var(--azul-oscuro);
            color: white;
            padding: 8px 8%;
            display: flex;
            justify-content: space-between;
            font-size: 13px;
        }

        .top-bar i {
            color: var(--celeste);
            margin-right: 6px;
        }

        /* =========================
           NAVBAR
        ========================= */

        nav {
            background: white;
            padding: 12px 8%;
            display: flex;
            justify-content: space-between;
            align-items: center;

            position: sticky;
            top: 0;
            z-index: 1000;

            box-shadow: 0 3px 12px rgba(0,0,0,.07);
        }

        .logo-img {
            height: 58px;
            width: auto;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .nav-links a {
            text-decoration: none;
            color: #334155;
            font-weight: 600;
            transition: .3s;
        }

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

        .btn-intranet {
            background: var(--azul-oscuro);
            color: white !important;
            padding: 10px 20px;
            border-radius: 6px;
        }

        .btn-intranet:hover {
            background: var(--verde);
        }

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

        .hero {
            min-height: 570px;
            padding: 70px 8%;

            display: grid;
            grid-template-columns: 1.1fr .9fr;
            align-items: center;
            gap: 60px;

            color: white;

            background:
                linear-gradient(
                    90deg,
                    rgba(11, 38, 53, 0.96) 0%,
                    rgba(11, 38, 53, 0.88) 45%,
                    rgba(22, 78, 99, 0.72) 100%
                ),
                url('../img/lab.jpg');

            background-size: cover;
            background-position: center;

            position: relative;
        }

        .hero-content {
            max-width: 650px;
        }

        .hero-tag {
            display: inline-block;
            color: var(--verde-claro);
            font-weight: 700;
            font-size: 14px;
            letter-spacing: 1px;
            margin-bottom: 18px;
        }

        .hero h1 {
            font-size: 52px;
            line-height: 1.1;
            color: #ffffff;
            margin-bottom: 22px;
        }

        .hero h1 span {
            color: var(--celeste);
        }

        .hero p {
            color: rgba(255, 255, 255, 0.9);
            font-size: 18px;
            line-height: 1.7;
            max-width: 570px;
            margin-bottom: 30px;
        }

        .btn-primary {
            display: inline-block;
            background: var(--verde);
            color: white;
            text-decoration: none;
            padding: 13px 25px;
            border-radius: 6px;
            font-weight: 600;
            transition: .3s;
        }

        .btn-primary:hover {
            background: var(--azul);
            transform: translateY(-2px);
        }

        /* VISUAL */

        .hero-visual {
    height: 350px;

    border-radius: 18px;

    background: rgba(255, 255, 255, 0.08);

    border: 1px solid rgba(255, 255, 255, 0.2);

    backdrop-filter: blur(4px);

    display: flex;
    justify-content: center;
    align-items: center;

    position: relative;
    overflow: hidden;

    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.20);
}

        .hero-visual::before {
            content: "";
            width: 230px;
            height: 230px;
            border: 2px solid rgba(56,189,248,.35);
            border-radius: 50%;
            position: absolute;
        }

        .hero-visual i {
            font-size: 110px;
            color: white;
            z-index: 2;
        }

        .hero-visual .badge {
            position: absolute;
            bottom: 25px;
            left: 25px;

            background: white;
            color: var(--azul-oscuro);

            padding: 10px 16px;
            border-radius: 6px;

            font-size: 13px;
            font-weight: 700;
        }

        /* =========================
           POR QUÉ ELEGIRNOS
        ========================= */

        .why {
            background: var(--gris);
            padding: 65px 8%;
            text-align: center;
        }

        .section-title {
            color: var(--azul-oscuro);
            font-size: 30px;
            margin-bottom: 12px;
        }

        .section-text {
            color: var(--gris-texto);
            margin-bottom: 40px;
        }

        .why-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .why-card {
            background: white;
            padding: 30px 25px;
            border-radius: 10px;

            box-shadow: 0 6px 18px rgba(15,45,61,.06);
        }

        .why-card i {
            font-size: 30px;
            color: var(--verde);
            margin-bottom: 15px;
        }

        .why-card h3 {
            color: var(--azul-oscuro);
            margin-bottom: 10px;
        }

        .why-card p {
            color: var(--gris-texto);
            line-height: 1.5;
            font-size: 14px;
        }

        /* =========================
           SERVICIOS
        ========================= */

        .services {
            padding: 70px 8%;
            text-align: center;
        }

        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
            margin-top: 40px;
        }

        .service-card {
            padding: 35px 25px;
            border: 1px solid #e2e8f0;
            border-radius: 10px;
            transition: .3s;
        }

        .service-card:hover {
            transform: translateY(-5px);
            border-color: var(--celeste);
            box-shadow: 0 10px 25px rgba(15,45,61,.08);
        }

        .service-card i {
            font-size: 38px;
            color: var(--azul);
            margin-bottom: 18px;
        }

        .service-card h3 {
            color: var(--azul-oscuro);
            margin-bottom: 10px;
        }

        .service-card p {
            color: var(--gris-texto);
            font-size: 14px;
            line-height: 1.5;
        }

        /* =========================
           FOOTER
        ========================= */

        footer {
            background: var(--azul-oscuro);
            color: white;
            text-align: center;
            padding: 25px;
            font-size: 13px;
        }

        /* =========================
           RESPONSIVE
        ========================= */

        @media (max-width: 800px) {

            .top-bar {
                display: none;
            }

            nav {
                padding: 12px 5%;
            }

            .nav-links {
                gap: 10px;
            }

            .nav-links a:not(.btn-intranet) {
                display: none;
            }

            .hero {
                grid-template-columns: 1fr;
                padding: 55px 5%;
                text-align: center;
            }

            .hero-content {
                margin: auto;
            }

            .hero h1 {
                font-size: 40px;
            }

            .hero p {
                margin-left: auto;
                margin-right: auto;
            }

            .hero-visual {
                height: 260px;
            }

            .why-grid,
            .services-grid {
                grid-template-columns: 1fr;
            }

            .why,
            .services {
                padding-left: 5%;
                padding-right: 5%;
            }
        }