/* =====================================================
   BARRA PRINCIPAL DEL MENÚ
   ===================================================== */

.menu {
    position: fixed;
    top: 100px;
    left: 0;
    z-index: 3000;

    width: 100%;
    padding: 20px;

    display: flex;
    align-items: center;
    gap: 10px;

    background-color: #50dadf;
}

.dropdown {
    position: relative;
    display: inline-block;
}

.boton-menu {
    padding: 12px 25px;
    border: 0;
    border-radius: 5px;

    background-color: #06c5d0;
    color: #fff;
    font-size: 16px;
    cursor: pointer;

    transition: background-color 0.3s ease, transform 0.3s ease;
}

.dropdown:hover .boton-menu,
.dropdown:focus-within .boton-menu {
    background-color: #555;
    transform: translateY(-2px);
}

/* =====================================================
   MENÚ DESPLEGABLE
   ===================================================== */

.dropdown-contenido {
    position: absolute;
    top: 100%;
    left: 0;
    z-index: 9999;

    min-width: 200px;
    overflow: hidden;
    border-radius: 6px;
    box-shadow: 0 5px 15px rgba(0, 0, 128, 0.35);
    background-color: #fff;

    opacity: 0;
    visibility: hidden;
    transform: translateY(-15px);
    transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease;
}

.dropdown:hover .dropdown-contenido,
.dropdown:focus-within .dropdown-contenido {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-contenido a {
    display: block;
    padding: 14px 18px;

    color: #333;
    text-decoration: none;
    background: #fff;

    opacity: 0;
    transform: translateX(-15px);
    transition: opacity 0.4s ease, transform 0.4s ease,
        background-position 0.4s ease, color 0.3s ease, padding-left 0.3s ease;
}

.dropdown:hover .dropdown-contenido a,
.dropdown:focus-within .dropdown-contenido a {
    opacity: 1;
    transform: translateX(0);
}

.dropdown-contenido a:nth-child(1) {
    transition-delay: 0.10s;
}

.dropdown-contenido a:nth-child(2) {
    transition-delay: 0.20s;
}

.dropdown-contenido a:nth-child(3) {
    transition-delay: 0.30s;
}

.dropdown-contenido a:nth-child(4) {
    transition-delay: 0.40s;
}

.dropdown-contenido a:hover,
.dropdown-contenido a:focus {
    background: linear-gradient(90deg, #6a11cb, #2575fc);
    color: #fff;
    padding-left: 25px;
}

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

@media (max-width: 768px) {
    .menu {
        top: 80px;
        padding: 10px;
        gap: 6px;
        display: flex;
        flex-wrap: wrap;
        align-items: flex-start;
        overflow: visible;
        box-sizing: border-box;
    }

    .dropdown {
        position: relative;
        flex: 0 0 auto;
    }

    .boton-menu {
        padding: 10px 12px;
        font-size: 14px;
        white-space: nowrap;
    }

    .dropdown-contenido {
        min-width: 190px;
        max-width: calc(100vw - 24px);
        max-height: 65vh;
        overflow-y: auto;
        overflow-x: hidden;
    }
}

@media (max-width: 420px) {
    .menu {
        top: 75px;
        padding: 8px;
        gap: 5px;
    }

    .boton-menu {
        padding: 9px 10px;
        font-size: 13px;
    }

    /* Evita que los submenús salgan del borde derecho de la pantalla. */
    .dropdown:last-child .dropdown-contenido {
        left: auto;
        right: 0;
    }
}