:root {
            /* Colores marca y principales */
            --color-brand: #FF6A13;
            --color-blue: #0070C0;
            --color-blue-dark: #003E73;

            /* Neutros */
            --color-white: #FFFFFF;
            --color-gray-50: #F5F7FA;
            --color-gray-700: #4A5663;
            --color-gray-900: #1A2430;

            /* Sombras */
            --shadow-sm: 0 2px 6px -1px rgba(0, 0, 0, .12), 0 4px 12px -2px rgba(0, 0, 0, .08);
            --shadow-md: 0 6px 20px -6px rgba(0, 0, 0, .18), 0 14px 32px -12px rgba(0, 0, 0, .20);

            /* Radios */
            --radius-xs: .4rem;
            --radius-sm: .75rem;
            --radius-md: 1rem;
            --radius-pill: 999px;

            /* Gradientes */
            --grad-brand: linear-gradient(115deg, var(--color-blue-dark) 0%, var(--color-blue) 55%);
            --grad-brand-accent: radial-gradient(circle at 80% 25%, rgba(255, 106, 19, .35), transparent 60%);

            /* Semánticas */
            --bg-base: var(--color-white);
            --bg-alt: var(--color-gray-50);
            --surface: var(--color-white);

            --text-primary: var(--color-gray-900);
            --text-secondary: var(--color-gray-700);
            --text-inverted: var(--color-white);

            --primary: var(--color-blue);
            --primary-hover: #0A82D8;

            --border-color: rgba(0, 0, 0, .10);
            --content-max: 1320px;
        }

        /* ================= LAYOUT BÁSICO ================= */
        .cnt-contact {
            --cnt-section-space: clamp(2rem, 5vw, 3.5rem);
            background: var(--bg-base);
            color: var(--text-primary);
            font-family: system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, "Helvetica Neue", Arial, sans-serif;
            line-height: 1.5;
        }

        .cnt-container {
            width: min(100% - 2rem, var(--content-max));
            margin-inline: auto;
            padding-inline: 1rem;
        }

        /* ================= HERO ================= */
        .cnt-hero {
            background: var(--grad-brand);
            color: var(--text-inverted);
            padding: var(--cnt-section-space) 0;
            text-align: center;
            position: relative;
            isolation: isolate;
        }

        .cnt-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: var(--grad-brand-accent);
            pointer-events: none;
        }

        .cnt-hero h1 {
            font-size: clamp(2.2rem, 4.5vw, 3.2rem);
            margin: 0 0 .6rem;
            font-weight: 800;
            text-wrap: balance;
        }

        .cnt-hero p {
            font-size: clamp(1rem, 1.25vw, 1.15rem);
            margin: 0 auto;
            max-width: 60ch;
            opacity: .92;
        }

        /* ================= SECCIÓN PRINCIPAL ================= */
        .cnt-main {
            padding-block: var(--cnt-section-space);
        }

        /* ===== Grid contacto ===== */
        .cnt-grid {
            display: grid;
            gap: clamp(1.5rem, 3vw, 2rem);
            align-items: start;
        }

        @media (min-width: 820px) {
            .cnt-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        /* ================= CARDS ================= */
        .cnt-card {
            background: var(--surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-sm);
            padding: 1.6rem 1.4rem 1.75rem;
        }

        .cnt-card h2 {
            font-size: 1.4rem;
            font-weight: 700;
            margin: 0 0 1rem;
            color: var(--color-blue-dark);
        }

        /* ===== Información de contacto ===== */
        .cnt-info-list {
            list-style: none;
            display: grid;
            gap: 1rem;
            margin: 0;
            padding: 0;
        }

        .cnt-info-item {
            display: flex;
            align-items: center;
            gap: .85rem;
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-secondary);
        }

        .cnt-info-icon {
            flex: 0 0 42px;
            height: 42px;
            display: grid;
            place-items: center;
            border-radius: 50%;
            background: var(--color-blue);
            color: #fff;
            font-size: 1.25rem;
            box-shadow: 0 2px 6px rgba(0, 0, 0, .18);
        }

        .cnt-info-item a {
            color: var(--color-blue-dark);
            text-decoration: none;
            transition: color .25s ease;
        }

        .cnt-info-item a:hover {
            color: var(--primary);
            text-decoration: underline;
        }

        /* ================= FORMULARIO ================= */
        .cnt-form {
            display: grid;
            gap: 1.1rem;
        }

        .cnt-field {
            display: flex;
            flex-direction: column;
            gap: .4rem;
        }

        .cnt-label {
            font-size: .9rem;
            font-weight: 600;
            color: var(--text-secondary);
        }

        .cnt-input,
        .cnt-textarea {
            font: inherit;
            padding: .8rem 1rem;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-xs);
            background: var(--bg-alt);
            resize: vertical;
            transition: border-color .3s ease, box-shadow .3s ease;
        }

        .cnt-input:focus-visible,
        .cnt-textarea:focus-visible {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(0, 112, 192, .22);
            outline: none;
        }

        /* ===== Botón ===== */
        .cnt-submit {
            justify-self: start;
        }

        .cnt-btn {
            --btn-bg: var(--primary);
            --btn-bg-h: var(--primary-hover);
            --btn-fg: #fff;

            display: inline-flex;
            align-items: center;
            gap: .55rem;
            padding: .95rem 2.1rem;
            font-size: 1rem;
            font-weight: 700;
            color: var(--btn-fg);
            background: var(--btn-bg);
            border: none;
            border-radius: var(--radius-pill);
            cursor: pointer;
            box-shadow: var(--shadow-sm);
            transition: background .35s, transform .25s;
        }

        .cnt-btn:hover {
            background: var(--btn-bg-h);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .cnt-btn:active {
            transform: translateY(0);
        }

        /* ================= SEPARADOR DECORATIVO ================= */
        .cnt-separator {
            width: 100%;
            height: 80px;
            margin-block: var(--cnt-section-space);
            background: var(--grad-brand);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            position: relative;
            overflow: hidden;
            isolation: isolate;
        }

        .cnt-separator::before {
            content: "";
            position: absolute;
            inset: 0;
            background: var(--grad-brand-accent);
            opacity: .35;
        }

        /* ================= MAPA ================= */
        .cnt-map {
            width: 100%;
            height: 340px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }

        .cnt-map iframe {
            width: 100%;
            height: 100%;
            border: 0;
            display: block;
        }

        /* ================= GRID DE PRODUCTOS (ejemplo extra) ================= */
        .gasprod-grid {
            display: grid;
            gap: 1.5rem;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
        }

        .gasprod-card {
            box-shadow: 0 2px 8px -1px rgba(0, 0, 0, .12), 0 6px 20px -8px rgba(0, 0, 0, .18);
        }

        .gasprod-card:hover {
            box-shadow: 0 8px 28px -4px rgba(0, 0, 0, .25);
        }