:root {
            --color-primary: #ff4500;
            --color-dark: #1a1a1a;
            --color-darker: #0f0f0f;
            --color-white: #ffffff;
            --color-gray: #888;
        }

        body {
            font-family: 'Arial', sans-serif;
            background-color: var(--color-darker);
             padding-top: 100px;
        }

        /* Header Principal */
        header {
            position: fixed;
            top: 0;
            width: 100%;
            background: linear-gradient(135deg, var(--color-darker) 0%, var(--color-dark) 100%);
            backdrop-filter: blur(10px);
            z-index: 1000;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            
        }

        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 3rem;
            max-width: 1400px;
            margin: 0 auto;
        }

        /* Logo */
        .logo-header {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            object-fit: cover;
            border: 2px solid var(--color-primary);
            transition: transform 0.3s ease;
        }

        .logo-header:hover {
            transform: scale(1.1);
        }

        /* Navegación Desktop */
        nav ul {
            display: flex;
            list-style: none;
            gap: 3rem;
            align-items: center;
        }

        nav a {
            color: var(--color-white);
            text-decoration: none;
            font-size: 1.2rem;
            font-weight: 600;
            letter-spacing: 1px;
            text-transform: uppercase;
            position: relative;
            transition: color 0.3s ease;
        }

        nav a:hover {
            color: var(--color-primary);
        }

        /* Efecto hover underline */
        nav a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--color-primary);
            transition: width 0.3s ease;
        }

        nav a:hover::after {
            width: 100%;
        }

        /* Menú Hamburguesa - Oculto por defecto */
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            background: none;
            border: none;
            padding: 0;
        }

        .hamburger span {
            width: 25px;
            height: 3px;
            background-color: var(--color-white);
            margin: 3px 0;
            transition: 0.3s;
            transform-origin: center;
        }

        /* Animación hamburguesa activa */
        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(6px, 6px);
        }

        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }

        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(6px, -6px);
        }

        /* Menú Mobile - Oculto por defecto */
        .mobile-menu {
            position: fixed;
            top: 80px;
            left: 0;
            width: 100%;
            height: calc(100vh - 80px);
            background: linear-gradient(135deg, var(--color-darker) 0%, var(--color-dark) 100%);
            backdrop-filter: blur(10px);
            transform: translateX(-100%);
            transition: transform 0.3s ease-in-out;
            z-index: 999;
        }

        .mobile-menu.active {
            transform: translateX(0);
        }

        .mobile-menu ul {
            display: flex;
            flex-direction: column;
            padding: 2rem;
            gap: 2rem;
        }

        .mobile-menu a {
            color: var(--color-white);
            text-decoration: none;
            font-size: 1.5rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
            padding: 1rem 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            transition: color 0.3s ease;
        }

        .mobile-menu a:hover {
            color: var(--color-primary);
        }

        /* Media Queries para Responsive */
        @media (max-width: 768px) {
            .header-container {
                padding: 1rem 2rem;
            }

            /* Ocultar navegación desktop */
            nav {
                display: none;
            }

            /* Mostrar hamburguesa */
            .hamburger {
                display: flex;
            }

            .logo-header {
                width: 50px;
                height: 50px;
            }
        }

        @media (max-width: 480px) {
            .header-container {
                padding: 1rem 1.5rem;
            }

            .mobile-menu ul {
                padding: 1.5rem;
            }

            .mobile-menu a {
                font-size: 1.3rem;
            }
        }

        /* Contenido demo para mostrar el scroll */
        .demo-content {
            margin-top: 100px;
            padding: 2rem;
            color: var(--color-white);
            min-height: 200vh;
        }

        .demo-content h1 {
            color: var(--color-primary);
            margin-bottom: 1rem;
        }

        /* Decoraciones adicionales para el estilo */
        header::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent 0%, var(--color-primary) 50%, transparent 100%);
        }
    body.menu-open {
    overflow: hidden !important;
    position: fixed;
    width: 100%;
}