:root {
    --border: #a1a1a1;
    --bg-primary: #ffffff;
    --bg-secondary: #f8f8f8;
    --bg-hover: #555;
    --text-primary: #000;
    --text-secondary: #a1a1a1;
    --text-nav: #fff;
    --controls: #000;
}

* {
    margin: 0;
    box-sizing: border-box;
}

body {
    font-family: "League Spartan", sans-serif;
    background-color: var(--bg-primary);
}

.container {
    width: 90%;
    margin: 0 auto;
    padding: 60px 0;
    overflow: hidden;
}

.main {
    max-width: 1440px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr;
    grid-template-rows: repeat(6, max-content);
    /*el tamanio se definira de su contenido*/
    grid-template-areas:
        "main"
        "buy"
        "image1"
        "about"
        "image2"
        "footer";
}

.main__hero {
    min-height: 500px;
    background-image: url("../img/mobile/mobile-image-hero-1.jpg");
    background-size: cover;
    background-position: center;
    grid-area: main;
    transition: background-image 0.5s ease-in-out;
}

.main__nav {
    display: flex;
}

.main__list {
    transition: transform 0.3s;
}

.main__list:hover {
    transform: translateY(-3px) scale(1.3);
}

.main__links {
    display: none;
    color: var(--text-nav);
}

.main__logo {
    margin: 0 auto;
}

.main__controls {
    align-self: end;
    justify-self: end;
    grid-area: main;
    background-color: var(--controls);
    display: flex;
    width: 100px;
    height: 50px;
    justify-content: space-around;
    align-items: center;
}

.main__arrows {
    height: 40%;
    transition: transform 0.3s;
}
.main__arrows--left:hover {
    transform: translateX(-3px) scale(1.3);
}

.main__arrows--right:hover {
    transform: translateX(3px) scale(1.3);
}

.main__buy {
    grid-area: buy;
}

.main__content {
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    flex-direction: column;
}

.main__title {
    color: var(--text-primary);
}

.main__paragraph {
    line-height: 1.5;
    margin: 1em 0 2em;
    color: var(--text-secondary);
}

.main__paragraph--about {
    margin: 1em 0 0 0;
}

.main__cta {
    text-decoration: none;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 4px;
    transition: transform 0.3s;
}

.main__cta:hover {
    transform: translateY(-3px);
}

.main__arrow {
    margin-left: 20px;
}

.main__bg {
    grid-area: image1;
    min-height: 250px;
    height: 100%;
    background-image: url("../img/image-about-dark.jpg");
    background-size: cover;
    background-position: center;
}

.main__about {
    grid-area: about;
}

.main__bg--second {
    grid-area: image2;
    background-image: url("../img/image-about-light.jpg");
}

.main__footer {
    grid-area: footer;
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: 2.5em 1em 1.5em;
    font-size: 0.9rem;
}

.main__footer__content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2em;
    text-align: center;
    padding: 30px 0;
}

.main__footer__left {
    max-width: 500px;
    color: var(--text-primary);
}

.main__footer__left a {
    color: var(--text-primary);
    font-weight: bold;
    text-decoration: none;
}

.main__footer__left a:hover {
    color: var(--bg-hover);
}

.main__footer__right {
    display: flex;
    gap: 1.5em;
    justify-content: center;
}

.main__footer__icon {
    font-size: 1.6rem;
    color: var(--text-primary);
    transition: transform 0.3s ease, color 0.3s ease;
}

.main__footer__icon:hover {
    transform: scale(1.2);
    color: var(--bg-hover);
}

.main__footer__icon:last-child {
    margin-right: 3px;
}

.main__footer__bottom {
    margin: 0;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.interface-tools {
    position: fixed;
    right: 1rem;
    bottom: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    z-index: 1000;
}

.interface-tools button {
    background-color: var(--bg-secondary);
    border: 1px var(--border) solid;
    box-shadow: 0 0 3px var(--border);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    font-size: 1.2rem;
    cursor: pointer;
    transition: transform 0.2s, background-color 0.3s;
    display: flex;
    justify-content: center;
    align-items: center;
}

.interface-tools button:hover {
    transform: scale(1.1);
    background-color: var(--bg-hover);
}

.icon-sun {
    display: none;
}
.icon-moon {
    display: inline;
}

#scroll-top {
    display: none; /* Oculto por defecto */
}

@media (min-width: 768px) {
    .container {
        width: 85%;
        padding: 70px 0;
    }

    .main {
        grid-template-columns: repeat(7, 1fr);
        grid-template-areas:
            "main main main main buy buy buy"
            "main main main main buy buy buy"
            "main main main main buy buy buy"
            "image1 image1 about about about image2 image2"
            "image1 image1 about about about image2 image2"
            "footer footer footer footer footer footer footer";
    }

    .main__hero {
        background-image: url("../img/desktop/desktop-image-hero-1.jpg");
    }

    .main__controls {
        grid-area: buy;
        justify-self: start;
    }

    .main__hamburger {
        display: none;
    }

    .main__links {
        padding: 0;
        display: grid;
        grid-auto-flow: column;
        gap: 1em;
        margin-left: 10%;
    }

    .main__list {
        list-style: none;
    }

    .main__link {
        color: var(--text-nav);
        text-decoration: none;
    }

    .main__logo {
        margin: 0;
    }

    .main__footer__content {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
        align-items: center;
        padding: 40px 0;
    }

    .main__footer__left {
        text-align: left;
    }

    .main__footer__right {
        justify-content: flex-end;
    }

    .main__footer__bottom {
        text-align: center;
        margin: 0;
    }
}



body.dark-mode {
    --border: #444;
    --bg-primary: #111;
    --bg-secondary: #222;
    --bg-hover: #555;
    --text-primary: #eee;
    --text-secondary: #a1a1a1;

    background-color: var(--bg-primary);

    .main__title {
        color: var(--text-primary);
    }

    .main__paragraph {
        color: var(--text-secondary);
    }

    .main__cta {
        color: var(--text-primary);
    }

    /* .main__arrow {
        filter: invert(100%); Un metodo bueno, pero con muchos bugs en iOS si se utiliza svg, entonces usaremos una imagen extra, una blanca y otra negra
    } */

    .main__arrow.light {
        display: none;
    }

    .main__arrow.dark {
        display: inline;
    }

    .main__controls {
        background-color: var(--bg-secondary);
        /*haremos que el bg del control sea el mismo que el bg del footer para que combine,
        en el modo light debe ser distinto por la paleta actual de blanco y negro*/
    }

    .main__footer {
        background-color: var(--bg-secondary);
        border-top: 1px solid var(--border);
    }

    .main__footer__left {
        color: var(--text-primary);
    }

    .main__footer__left a {
        color: var(--text-primary);
    }

    .main__footer__left a:hover {
        color: var(--bg-hover);
    }

    .main__footer__icon {
        color: var(--text-primary);
    }

    .main__footer__icon:hover {
        color: var(--bg-hover);
    }

    .main__footer__bottom {
        color: var(--text-secondary);
    }

    .interface-tools button {
        background-color: var(--bg-secondary);
        border: 1px var(--border) solid;
        box-shadow: 0 0 3px var(--border);
    }

    .interface-tools button:hover {
        background-color: var(--bg-hover);
    }

    .interface-tools button.light {
        display: none;
    }

    .interface-tools button.dark {
        display: inline;
    }

    .icon-sun {
        display: inline;
    }
    .icon-moon {
        display: none;
    }
}