:root {
    --body-background-color: #F7F9F2;
    --body-background-tint: #F0F2EB;

    --dark-logo-background-color: #374957;

    --table-of-contents-color: #E6ECD6;
    --table-of-contents-light: #F6FCE5;
    --table-of-contents-tint: #6E9600;
}

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

html,
body {
    overflow-x: hidden;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--body-background-color);
    width: 100vw;
}

.header-top {
    background-color: var(--body-background-color);
    width: 100vw;
    position: fixed;
    top: 0;
    margin-bottom: 1rem;
    padding: 1rem;

    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-top .header-logo {
    width: 12rem;
    height: 4rem;

    background-image: url('../img/logo-diamayorinnova-light-alfa.png');
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
}

#hamburger {
    margin: 0 .5em;
    padding: .25em;
    font-size: x-large;
    border-radius: 5px;
}

#hamburger:hover {
    background-color: var(--dark-logo-background-color);
    color: var(--body-background-color);
}

#collapsible-top-menu {
    margin-top: 6rem;
    background-color: var(--body-background-color);
    position: fixed;
    width: 100vw;
    height: 100vh;
    text-align: center;
}

#collapsible-top-menu li {
    list-style-type: none;
}

#collapsible-top-menu a {
    text-align: left;
    position: relative;
    display: inline-block;
    width: calc(100% - 3em * 2);
    /* 100% from the beginning */
    text-decoration: none;
    font-size: large;
    font-weight: bold;
    color: var(--dark-logo-background-color);
    border-bottom: 1px solid var(--dark-logo-background-color);
    padding: .5em 0;
}

#collapsible-top-menu>a {
    text-align: center;
    width: calc(100% - 3em * 2);
    /* 100% from the beginning */
    border-radius: 9999px;
    border: 1px solid black;
    margin: .25em 3em;
    padding: 1em;
    background-color: var(--body-background-color);
    font-size: medium;

    cursor: pointer;
}

#collapsible-top-menu>a.button-inverse {
    background-color: var(--dark-logo-background-color);
    color: var(--body-background-color);
}

nav.header-menu,
.header-buttons {
    display: none;
}

.header-title {
    width: 100vw;
    margin: 6rem 0 1rem 0;

    display: flex;
    justify-content: center;
    align-items: center;
}

.header-title .header-short-description {
    margin: 1em 1em 1em 1em;
    text-align: center;
    /* width: 90vw; */
    font-weight: lighter;
}

.header-title h1 {
    font-size: 2rem;
    font-weight: bold;
    margin-bottom: 1rem;
}

.header-title p {
    font-size: 1rem;
}

.aside-left {
    display: none;
}

.section-main-content {
    width: 100%;

    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: flex-start;
}

.section-middle {
    width: 90vw;
}

.section-middle .introduction-image {
    width: 90vw;
    height: 45vw;
    border-radius: 10px;
    border: 1px black solid;

    background-image: url('../img/login-image-tint.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.section-middle * {
    margin-bottom: 1em;
}

.section-middle>article>h2 {
    margin-top: 2em;
}

.section-middle .introduction-logos {
    width: 90vw;

    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: flex-start;
    align-content: flex-start;
}

.introduction-logos a {
    display: inline-block;
    text-decoration: none;
}

.logo-ies-el-rincon {
    width: 10rem;
    height: 10rem;

    max-width: 90vw;
    max-height: 90vw;

    background-image: url('../img/logo-ies-el-rincon-300ppp-alfa.png');
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
}

.logo-ies-santa-brigida {
    width: 10rem;
    height: 10rem;

    max-width: 90vw;
    max-height: 90vw;

    background-image: url('../img/logo-ies-santa-brigida-300ppp-alfa.png');
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
}

.logo-usabi {
    width: 10rem;
    height: 10rem;

    max-width: 90vw;
    max-height: 90vw;

    background-image: url('../img/logo-usabi-300ppp-alfa.png');
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
}

.logo-ulpgc {
    width: 35rem;
    height: 6rem;

    max-width: 90vw;
    max-height: 90vw;

    background-image: url('../img/logo-ulpgc-sm-alfa.png');
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
}

.logo-gobierno-de-canarias {
    width: 20rem;
    height: 10rem;

    max-width: 90vw;
    max-height: 90vw;

    background-image: url('../img/logo-gobierno-de-canarias-300ppp-sm-alfa.png');
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
}

.logo-redes-innovacion {
    width: 15rem;
    height: 10rem;

    max-width: 90vw;
    max-height: 90vw;

    background-image: url('../img/logo-redes-innovacion-300ppp-alfa.png');
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
}

.collapsible details {
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    padding: .75rem;
    background: var(--table-of-contents-color);
}

.collapsible summary {
    cursor: pointer;
    list-style: none;
    font: 600 1.25rem/1.2 system-ui;
    display: flex;
    align-items: center;
    gap: .5rem;
}

.collapsible summary::before {
    text-align: right;
    content: "▸";
    transition: transform .2s ease;
}

.collapsible details[open] summary::before {
    transform: rotate(90deg);
}

.collapsible .content {
    margin-top: .5rem;
    overflow: hidden;
    max-height: 0;
    transition: max-height .25s ease;
}

.collapsible details[open] .content {
    max-height: 400px;
}

article .cards {
    margin-top: 2em;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-evenly;
    align-items: stretch;
}

article .card {
    text-align: center;
    padding: 1rem;
    border: 1px solid black;
    border-radius: 10px;
    margin-bottom: 1rem;
}

.card-icon * {
    font-size: xx-large;
}

.card p {
    margin-top: 1rem !important;
}

article .card.card-3-in-a-row {
    width: 15rem;
}

article .card.card-2-in-a-row {
    width: 22rem;
}

article .card.card-3-in-a-row:hover,
article .card.card-2-in-a-row:hover {
    color: white;
    background-color: var(--dark-logo-background-color);
}

article>div>ul>li {
    margin-left: 6rem;
}

.card-inverse {
    margin: 0 auto;
    padding: 1em;
    border-radius: 20px;
    width: 90vw;
    color: white;
    background-color: var(--table-of-contents-tint);
}

.card-inverse .card-inverse-buttons {
    text-align: center;
    margin-bottom: 0;
}

.card-inverse .card-inverse-buttons a {
    border-radius: 10px;
    border: 1px solid white;
    margin: 1rem .5rem 0 0;
    padding: .75em 1em;
    color: black;
    background-color: var(--body-background-color);
    font-size: small;
    text-decoration: none;

    cursor: pointer;
}

.card-inverse .card-inverse-buttons a.button-inverse {
    background-color: var(--table-of-contents-tint);
    color: white;
}

article#article-profiles {
    margin-bottom: 0;
}

.aside-right {
    display: none;
}

section.section-before-footer>* {
    margin: 4rem 0;
}

section.section-before-footer article h2,
section.section-before-footer article p {
    text-align: center;
    margin-bottom: 2rem;
}

article.article-background {
    padding: 3rem;
    background-color: var(--body-background-tint);
}

article#article-faq {
    margin-bottom: 0;
}

footer {
    margin-top: 0;
    width: 100%;

    color: white;
    background-color: var(--dark-logo-background-color);

    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    align-content: flex-start;
}

.footer-description {
    padding-top: 3rem;
    width: 90vw;
}

.footer-description .logo {
    width: 90vw;
    height: 25vw;
    border-radius: 10px;

    background-image: url('../img/logo-diamayorinnova-dark.jpeg');
    background-color: var(--dark-logo-background-color);
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
}

.footer-description p {
    text-align: center;
    width: 90vw;
}

.footer-features {
    margin-left: 50vw;
    margin-top: 3rem;
    width: 90vw;
}

.footer-access {
    margin-left: 50vw;
    margin-top: 3rem;
    margin-bottom: 3rem;
    width: 90vw;
}

footer ul {
    margin-top: .75rem;
    margin-left: 1rem;
}

.footer-features ul li:hover a,
.footer-access ul li:hover a {
    font-weight: bold;
}

.footer-features ul li a,
.footer-access ul li a {
    text-decoration: none !important;
    color: black !important;
}

.footer-features ul li a,
.footer-access ul li a {
    color: lightblue !important;
}

/* Medium devices (landscape tablets, 768px and up) */
@media only screen and (min-width: 768px) {

    nav.header-menu {
        display: block;
    }

    nav.header-menu {
        display: block;
    }

    .header-top .header-menu span {
        margin: 0 .5em;
        font-size: small;
    }

    .header-menu span:hover a {
        font-weight: bold;
    }

    .header-menu span a {
        text-decoration: none !important;
        color: black !important;
    }

    .header-title {
        margin: 6rem 3rem 3rem 3rem;

        display: flex;
        justify-content: center;
        align-items: center;
    }

    .header-title .header-logo {
        width: 15rem;
        height: 4rem;

        background-image: url('../img/logo-diamayorinnova-dark.jpeg');
        background-size: contain;
        background-position: center;
        background-repeat: no-repeat;
    }

    .header-title * {
        margin: .5em 0;
        text-align: center;
        width: 60vw;
        font-weight: lighter;
    }

    .header-title h1 {
        font-size: 2.75em;
        font-weight: bold;
    }

    .header-title p {
        font-size: 1em;
    }


}

/* Large devices (laptops/desktops, 992px and up) */
@media only screen and (min-width: 992px) {

    html,
    body {
        overflow-x: visible;
    }

    #hamburger {
        display: none;
    }

    .header-buttons {
        display: block;
    }

    .header-top .header-buttons a {
        border-radius: 9999px;
        border: 1px solid black;
        margin-right: 1rem;
        padding: .75em 1em;
        color: black;
        background-color: var(--body-background-color);
        font-size: small;
        text-decoration: none;

        cursor: pointer;
    }

    .header-top .header-buttons .button-inverse {
        background-color: black;
        color: var(--body-background-color);
    }

    #collapsible-top-menu {
        display: none;
    }

    .header-title {
        margin: 6rem 3rem 3rem 3rem;

        display: flex;
        justify-content: center;
        align-items: center;
    }

    .header-title .header-logo {
        width: 15rem;
        height: 4rem;

        background-image: url('../img/logo-diamayorinnova-dark.jpeg');
        background-size: contain;
        background-position: center;
        background-repeat: no-repeat;
    }

    .header-title * {
        margin: .5em 0;
        text-align: center;
        width: 60vw;
        font-weight: lighter;
    }

    .header-title h1 {
        font-size: 2.75em;
        font-weight: bold;
    }

    .header-title p {
        font-size: 1em;
    }

    .section-main-content {
        width: 100%;

        display: flex;
        flex-direction: row;
        justify-content: center;
        align-items: flex-start;
    }

    .header-menu span:hover a,
    .footer-features ul li:hover a,
    .footer-access ul li:hover a {
        font-weight: bold;
    }

    .header-menu span a,
    .footer-features ul li a,
    .footer-access ul li a {
        text-decoration: none !important;
        color: black !important;
    }

    .footer-features ul li a,
    .footer-access ul li a {
        color: lightblue !important;
    }

    .section-middle {
        margin-left: 4rem;
        width: 50rem;
    }

    .section-middle .introduction-image {
        width: 50rem;
        height: 30rem;
        border-radius: 10px;
        border: 1px black solid;

        background-image: url('../img/login-image-tint.jpg');
        background-size: cover;
        background-position: center;
        background-repeat: no-repeat;
    }

    .section-middle * {
        margin-bottom: 1em;
    }

    .section-middle>article>h2 {
        margin-top: 2em;
    }

    .section-middle .introduction-logos {
        width: 50rem;

        display: flex;
        flex-wrap: wrap;
        justify-content: space-evenly;
        align-items: flex-start;
        align-content: flex-start;
    }

    .logo-ies-el-rincon {
        width: 10rem;
        height: 10rem;

        background-image: url('../img/logo-ies-el-rincon-300ppp-alfa.png');
        background-size: contain;
        background-position: center;
        background-repeat: no-repeat;
    }

    .logo-ies-santa-brigida {
        width: 10rem;
        height: 10rem;

        background-image: url('../img/logo-ies-santa-brigida-300ppp-alfa.png');
        background-size: contain;
        background-position: center;
        background-repeat: no-repeat;
    }

    .logo-usabi {
        width: 10rem;
        height: 10rem;

        background-image: url('../img/logo-usabi-300ppp-alfa.png');
        background-size: contain;
        background-position: center;
        background-repeat: no-repeat;
    }

    .logo-ulpgc {
        width: 35rem;
        height: 6rem;

        background-image: url('../img/logo-ulpgc-300ppp-alfa.png');
        background-size: contain;
        background-position: center;
        background-repeat: no-repeat;
    }

    .logo-gobierno-de-canarias {
        width: 25rem;
        height: 10rem;

        background-image: url('../img/logo-gobierno-de-canarias-300ppp-alfa.png');
        background-size: contain;
        background-position: center;
        background-repeat: no-repeat;
    }

    .logo-redes-innovacion {
        width: 15rem;
        height: 10rem;

        background-image: url('../img/logo-redes-innovacion-300ppp-alfa.png');
        background-size: contain;
        background-position: center;
        background-repeat: no-repeat;
    }

    .collapsible details {
        border: 1px solid #e5e7eb;
        border-radius: 8px;
        padding: .75rem;
        background: var(--table-of-contents-color);
    }

    .collapsible summary {
        cursor: pointer;
        list-style: none;
        font: 600 1.25rem/1.2 system-ui;
        display: flex;
        align-items: center;
        gap: .5rem;
    }

    .collapsible summary::before {
        text-align: right;
        content: "▸";
        transition: transform .2s ease;
    }

    .collapsible details[open] summary::before {
        transform: rotate(90deg);
    }

    .collapsible .content {
        margin-top: .5rem;
        overflow: hidden;
        max-height: 0;
        transition: max-height .25s ease;
    }

    .collapsible details[open] .content {
        max-height: 400px;
    }

    article .cards {
        margin-top: 2em;
        display: flex;
        flex-wrap: wrap;
        justify-content: space-evenly;
        align-items: stretch;
    }

    article .card {
        text-align: center;
        padding: 1rem;
        border: 1px solid black;
        border-radius: 10px;
    }

    .card-icon * {
        font-size: xx-large;
    }

    .card p {
        margin-top: 1rem !important;
    }

    article .card.card-3-in-a-row {
        width: 15rem;
    }

    article .card.card-2-in-a-row {
        width: 22rem;
    }

    article .card.card-3-in-a-row:hover,
    article .card.card-2-in-a-row:hover {
        color: white;
        background-color: var(--dark-logo-background-color);
    }

    article>div>ul>li {
        margin-left: 6rem;
    }

    .card-inverse {
        margin: 0 auto;
        padding: 1em;
        border-radius: 20px;
        width: 50rem;
        color: white;
        background-color: var(--table-of-contents-tint);
    }

    .card-inverse .card-inverse-buttons {
        text-align: right;
        margin-bottom: 0;
    }

    .card-inverse .card-inverse-buttons button {
        border-radius: 10px;
        border: 1px solid white;
        margin: 1rem .5rem 0 0;
        padding: .75em 1em;
        background-color: var(--body-background-color);
        font-size: small;

        cursor: pointer;
    }

    .card-inverse .card-inverse-buttons button.button-inverse {
        background-color: var(--table-of-contents-tint);
        color: white;
    }

    article#article-profiles {
        margin-bottom: 0;
    }

    .aside-right {
        display: none;
    }

    section.section-before-footer>* {
        margin: 4rem 0;
    }

    section.section-before-footer article h2,
    section.section-before-footer article p {
        text-align: center;
        margin-bottom: 2rem;
    }

    article.article-background {
        padding: 3rem;
        background-color: var(--body-background-tint);
    }

    .school-list {
        margin-left: calc(50vw - 20rem);
    }

    article#article-faq {
        margin-bottom: 0;
    }

    footer {
        margin-top: 0;
        width: 100%;

        color: white;
        background-color: var(--dark-logo-background-color);

        display: flex;
        flex-direction: row;
        justify-content: center;
        align-items: flex-start;
    }

    .footer-description {
        width: 40vw;
        margin: 2rem;
    }

    .footer-description .logo {
        width: 20rem;
        height: 10rem;
        border-radius: 10px;

        background-image: url('../img/logo-diamayorinnova-dark.jpeg');
        background-color: var(--dark-logo-background-color);
        background-size: contain;
        background-position: center;
        background-repeat: no-repeat;
    }

    .footer-description p {
        text-align: center;
        width: 20rem;
    }

    .footer-features {
        margin: 2rem;
        width: 10vw;
    }

    .footer-access {
        margin: 2rem;
        width: 10vw;
    }

    footer ul {
        margin-top: .75rem;
        margin-left: 1rem;
    }

}

/* Extra large devices (large laptops and desktops, 1200px and up) */
@media only screen and (min-width: 1200px) {

    .aside-left {
        position: sticky;
        top: 6rem;

        width: 20rem;

        display: flex;
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
    }

    .aside-left .table-of-contents {
        padding: 1rem;
        font-size: small;
        font-weight: lighter;
        border-radius: 10px;
        background-color: var(--table-of-contents-color);
        margin-bottom: 1em;
    }

    .aside-left .table-of-contents h1 {
        font-size: small;
        font-weight: bold;
        margin-bottom: 1.5em;
    }

    .aside-left .table-of-contents ul {
        list-style-type: none;
        /* margin-left: 1em; */
        font-size: small;
        font-weight: lighter;
        margin-bottom: 1em;
    }

    .aside-left .table-of-contents ul li {
        margin-top: .75em;
    }

    .aside-left .table-of-contents ul li:hover {
        font-weight: bold;
    }

    .aside-left .table-of-contents ul li a {
        text-decoration: none;
        color: black;
    }

    .aside-left .table-of-contents ul li a.active {
        color: var(--table-of-contents-tint);
        font-weight: bold;
        font-size: 1.1em;
    }

    .aside-left .logo {
        width: 20rem;
        height: 10rem;
        border-radius: 10px;

        background-image: url('../img/logo-diamayorinnova-dark.jpeg');
        background-color: var(--dark-logo-background-color);
        background-size: contain;
        background-position: center;
        background-repeat: no-repeat;
    }

}