* {
    margin: 0;
    padding: 0;
}

body {
    background: url('../img/fondo.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
}

@keyframes slideInFromRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideOutToLeft {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(-100%);
        opacity: 0;
    }
}

.nav-2.active li {
    animation: slideInFromRight 0.6s forwards;
}

.nav-2.closing li {
    animation: slideOutToLeft 0.6s forwards;
}

.nav-2.active li:nth-child(1) { animation-delay: 0.1s; }
.nav-2.active li:nth-child(2) { animation-delay: 0.2s; }
.nav-2.active li:nth-child(3) { animation-delay: 0.3s; }
.nav-2.active li:nth-child(4) { animation-delay: 0.4s; }
.nav-2.active li:nth-child(5) { animation-delay: 0.5s; }
.nav-2.active li:nth-child(6) { animation-delay: 0.6s; }

/* *Overlay* */

@keyframes slideDown {
    0% {
        transform: translateY(-100%);
        /* Inicia fuera de la pantalla */
        opacity: 0;
        /* Opcional: Hace que el overlay aparezca gradualmente */
    }

    100% {
        transform: translateY(0);
        /* Llega a su posición original */
        opacity: 1;
    }
}

#overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    /* Fondo semi-transparente */
    z-index: 10;
    transform: translateY(-100%);
    /* Comienza fuera de la pantalla, arriba */
    transition: transform 0.5s ease-out;
    /* Transición suave */
    display: none;
    /* Inicialmente oculto */
}

#overlay.active {
    display: block;
    /* Mostrar overlay cuando esté activo */
    transform: translateY(0);
    /* Mover overlay a la posición original */
}

#overlay.closing {
    transform: translateY(-100%);
    /* Mover overlay hacia arriba al cerrar */
}

/* Header */

header {
    height: 10rem;
    width: 100%;
    display: flex;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
    transition: top 0.6s ease-in-out;

    ul {
        width: 100%;
        display: flex;
        justify-content: space-around;
        align-items: center;
        gap: 10px;
    }

    li {
        list-style: none;
    }

    a {
        font-family: sans-serif;
        font-size: 19px;
        display: flex;
        align-items: center;
        text-decoration: none;
        padding: 5px;
        border-radius: 20px;
        color: #ffffff;
        transition: .4s ease, text-shadow 0.3s ease;
    }

    a:hover {
        text-shadow: 0 0 10px rgba(255, 255, 255, 0.7);
    }

    /* Sección del logo */
    .logo-section {
        display: flex;
        justify-content: center;
        align-items: center;
        height: 90%;
        max-height: 200px;
        aspect-ratio: 1/1;
        box-shadow: 0 0 10px #000;
        border-radius: 100px;
        margin-left: 10px;
        background-color: #0003;
        z-index: 3;
        transition: background-color ease-in-out 0.3s, transform 0.3s ease-in-out;
        cursor: pointer;
    }

    #kennedy-logo {
        height: 100%;
        transition: transform 0.3s ease-in-out;
    }

    #kennedy-logo:hover {
        transform: scale(1.2);
    }

    .logo-section:hover {
        background-color: #0009;
    }

    .icon {
        width: 26px;
        padding: 2px;
        border-radius: 5px;
        user-select: none;
        filter: invert(100%);
    }

    .add {
        width: 10vw;
        height: 5vh;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: 15px;
        padding: 10px 20px;
        cursor: pointer;
        box-shadow: 0 0 8px #000000b3;
        position: relative;
        z-index: 1;
        overflow: hidden;
        gap: 10px;
    }

    .add::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 0;
        height: 100%;
        background-color: #222e55;
        z-index: -1;
        transition: width 0.4s ease;
        border-radius: 16px;
    }

    .add:hover::before {
        width: 100%;
        border-radius: 16px;
    }

    #kennedy-logo {
        height: 100%;
        transition: transform 0.3s ease-in-out;
    }

    #kennedy-logo:hover {
        transform: scale(1.2);
    }

    .logo-section:hover {
        background-color: #0009;
    }
}

/* *Menu* */

.menu {
    display: flex;
    align-items: center;
    margin: 0 2rem 0 0;
}

.burger {
    display: none;
    position: relative;
    width: 45px;
    height: 33px;
    background: transparent;
    cursor: pointer;
    margin-left: 193px;
}

.burger input {
    display: none;
}

.burger span {
    display: block;
    position: absolute;
    height: 4px;
    width: 100%;
    background: white;
    border-radius: 9px;
    opacity: 1;
    left: 0;
    transform: rotate(0deg);
    transition: .25s ease-in-out;
}

.burger span:nth-of-type(1) {
    top: 0px;
    transform-origin: left center;
}

.burger span:nth-of-type(2) {
    top: 50%;
    transform: translateY(-50%);
    transform-origin: left center;
}

.burger span:nth-of-type(3) {
    top: 100%;
    transform-origin: left center;
    transform: translateY(-100%);
}

.burger input:checked~span:nth-of-type(1) {
    transform: rotate(45deg);
    top: -3px;
    left: 5px;
}

.burger input:checked~span:nth-of-type(2) {
    width: 0%;
    opacity: 0;
}

.burger input:checked~span:nth-of-type(3) {
    transform: rotate(-45deg);
    top: 28px;
    left: 5px;
}

/* Cards */

main {
    font-family: "Poppins", Sans-serif;
    margin: 2.5rem 0;
    margin-top: 14%;

    & .container-card {
        display: grid;
        grid-template-columns: repeat(3, 350px);
        justify-content: center;
        gap: 3.50em;

        & .card {
            font-family: "Montserrat", sans-serif;
            background: radial-gradient(at right top, #455897, #1d2749);
            border-radius: 0.625em;
            box-shadow: 0 1px 0.625em #000;
            padding: .8em;
            transition: 0.5s;
            opacity: 0;
            transform: translateY(100px);
            animation: slideUp 0.7s ease-in-out forwards;

            & h1,
            a {
                color: white;
                display: flex;
                justify-content: center;
                align-items: center;
                text-align: center;
            }

            & h1 {
                font-size: 1.8em;
                font-weight: 500;
            }

            & p {
                color: white;
                font-size: 1.1em;
                padding: 12px 0;
            }

            & ul {
                position: relative;
                right: 20px;
                background: rgb(229, 229, 239);
                border-radius: 0.625em;
                border-top-right-radius: 30%;
                box-shadow: 0 0 0.625em #000;
                padding: 0.513em;
                min-height: 311px;
                display: grid;
                place-items: baseline;

                & li {
                    color: #222e55;
                    list-style: none;
                    font-size: 1em;
                    font-weight: 600;
                    padding: 5px;
                }
            }

            & .container-btn {
                display: flex;
                justify-content: center;
                align-items: center;
                margin-top: 1em;
                border-radius: 80px;
                transition: 0.2s ease-in-out, color 0.2s ease-in-out;

                & .btn-text {
                    background-color: #222e55;
                    color: white;
                    padding: 1.2em 1.1em;
                    border-radius: 80px;
                    width: 80px;
                    text-decoration: none;
                    transition: 0.5s;
                    box-shadow: 0 5px 15px #00000080;
                }

                & .btn-text:hover {
                    background: rgb(229, 229, 239);
                    color: black;
                }
            }
        }

        & .card:nth-child(1) {
            animation-delay: 0.2s;
        }

        & .card:nth-child(2) {
            animation-delay: 0.4s;
        }

        & .card:nth-child(3) {
            animation-delay: 0.6s;
        }
    }
}


@keyframes slideUp {
    0% {
        opacity: 0;
        transform: translateY(100px);
    }

    100% {
        opacity: 1;
        transform: translateY(0);
    }
}


/* Footer */

.ft {
    font-family: "Montserrat", sans-serif;
    width: 100%;
    background: radial-gradient(at right top, #455897, #1d2749);
    margin-top: 70px;

    .cluster {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    p {
        color: #ffffff;
        font-size: 18px;
        text-align: center;
        margin: 15px 0;
    }

    .negri {
        font-weight: bold;
    }
}

/* Responsive */

@media screen and (max-width: 768px) {
    .nav-2 {
        display: none;
    }
    
    .nav-2 li {
        opacity: 0;
    }

    .burger {
        display: block;
    }

    .nav-2.active {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        position: absolute;
        gap: 1.5rem;
        top: 120%;
        left: 0;
        opacity: 1;
    }

    header {
        .add {
            width: 38vw;
            height: 7vh;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 15px;
            padding: 9px 32px;
            cursor: pointer;
            box-shadow: 0 0 8px #ffffffb3;
            position: relative;
            z-index: 1;
            overflow: hidden;
            gap: 10px;
        }
    }

    header{
    a {
        font-size: 23px;
    }
}
    main {
        & .container-card {
            grid-template-columns: 1fr;
            margin-top: 45%;

            & .card {
                width: 80%;
                margin: 0 auto;
                animation: slideRight 0.7s ease-in-out forwards;
            }
        }
    }

    .cluster {
        flex-direction: column;
    }
}

@keyframes slideRight {
    0% {
        opacity: 0;
        transform: translateX(100%);
    }

    100% {
        opacity: 1;
        transform: translateX(0);
    }
}