/* --- Variables de Navegación --- */
:root {
    --nav-bg: #1a2a3a;
    --nav-accent: #2ecc71;
    --nav-text: #ffffff;
    --nav-transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Estilos Base Desktop --- */
.navbar {
    padding: 20px;
    position: relative;
    z-index: 1000;
}

.nav-container {
    max-width: 90%;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 20px;
}

.nav-menu a {
    text-decoration: none;
    color: var(--nav-text);
    transition: color 0.3s;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 5px;
}

.nav-menu a:hover {
    color: var(--nav-accent);
}

/* --- Submenú Desktop --- */
.has-submenu {
    position: relative;
}

.submenu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--nav-bg);
    min-width: 220px;
    list-style: none;
    padding: 10px 0;
    border-radius: 0 0 8px 8px;
    box-shadow: 0 8px 15px rgba(0,0,0,0.2);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--nav-transition);
    z-index: 1100;
}

.submenu li a {
    padding: 12px 20px;
    font-size: 0.9rem;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

@media (min-width: 769px) {
    .has-submenu:hover .submenu {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }
}

/* --- Responsive (Móvil) --- */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 1.8rem;
    cursor: pointer;
    z-index: 1001;
}

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

    .nav-right {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        height: 100vh;
        background-color: var(--nav-bg);
        flex-direction: column;
        justify-content: flex-start;
        padding: 100px 40px;
        transition: var(--nav-transition);
        box-shadow: -10px 0 20px rgba(0,0,0,0.5);
        overflow-y: auto;
    }

    .nav-right.active { right: 0; }

    .nav-menu {
        flex-direction: column;
        width: 100%;
        gap: 15px;
    }

    .submenu {
        display: none; /* Se activa con JS */
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        background: rgba(255,255,255,0.05);
        box-shadow: none;
        width: 100%;
        margin-top: 10px;
    }

    .has-submenu.active .submenu {
        display: block;
    }

    .has-submenu.active i {
        transform: rotate(180deg);
    }
}
/* --- Botón de Acción en Navbar --- */
.btn-gratis {
    background-color: var(--whatsapp-color); /* #25d366 */
    color: white;
    padding: 10px 25px;
    font-size: 16px;
    font-weight: bold;
    text-decoration: none;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: transform 0.2s, background-color 0.3s, box-shadow 0.3s;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    display: inline-block;
    text-align: center;
}

.btn-gratis:hover {
    background-color: #21bd5c;
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

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

/* --- Ajuste específico para Móvil --- */
@media (max-width: 768px) {
    .btn-gratis {
        width: 100%; /* Ocupa el ancho del menú lateral */
        max-width: 250px;
        margin-top: 20px;
        padding: 15px; /* Más fácil de tocar en pantallas táctiles */
    }
}