@import url("https://fonts.googleapis.com/css?family=Nunito");

/* Global */

* {
    --gladney-navy: #173f54;
    margin: 0;
    padding: 0;
}

:root {
    margin: 0;
    padding: 0;

    background-image: url("/img/backgrounds/nature.png");
    background-repeat: no-repeat;
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    background-size: cover;
    background-attachment: fixed;
    font-family: "Nunito", sans-serif;

    color: var(--gladney-navy);
    font-size: 17px;
}

a {
    padding: 3px 0;
    text-decoration: none;
    color: #173f54;
    background-image: linear-gradient(currentColor, currentColor);
    background-position: 0% 90%;
    background-repeat: no-repeat;
    background-size: 0% 1px;
    transition: background-size 0.2s;
}

h1 {
    font-size: 19px;
}

h2 {
    font-size: 17px;
}

a:hover,
a:focus {
    background-size: 100% 1px;
}

/* Holidays Panel */

#holiday-panel {
    position: absolute;
    right: -10px;
    top: 20px;
    transform: translateX(100%);
    padding: 20px 25px;
    border-radius: 50px;

    background-color: rgba(255, 255, 255, 0.8);

    display: flex;
    flex-direction: column;
}

#holiday-panel h2 {
    margin-top: 5px;
}

#holiday-panel ul {
    list-style-type: none;
}

#holiday-panel li {
    font-size: 16px;
    margin-left: 5px;
}

#holiday-panel hr {
    margin-bottom: 5px;
}

.holiday-title {
    font-style: italic;
}

/* Specific */

#container {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.main {
    position: relative;
    max-width: 800px;
    padding: 20px;
    margin: 10px;
    border-radius: 50px;

    background-color: rgba(255, 255, 255, 0.8);

    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}

.item {
    width: 100%;
    max-width: 33%;
    min-width: 170px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.item .links {
    margin-top: 10px;
    height: 100%;

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

.item img {
    height: 180vh;
    max-height: 55px;
    width: auto;
    margin: 10px;
    transition: 0.25s;
}

/* Banner */

.banner {
    margin: 20px 0px;
    width: 100%;
    display: flex;
    align-items: flex-start;
    justify-content: center;
}

.banner img {
    height: 10vh;
    max-height: 90px;
    width: auto;
}

/* Additional Resources */

.additional {
    width: 100%;
    text-align: center;
    margin-top: auto;
    padding-top: 20px;
    overflow-y: hidden;
}

.line {
    margin: 4px auto 10px auto;
    width: 95%;
    border-bottom: 1px solid var(--gladney-navy);
}

.additional .links {
    display: grid;
    gap: 4px;
    grid-template-columns: auto auto;
}

/* Media Queries */

@media (max-width: 1535px) {
    #holiday-panel {
        display: none;
    }
}

@media (max-width: 950px) {
    .additional .links {
        grid-template-columns: auto;
    }

    .banner {
        display: none;
    }

    .item {
        margin-top: 5px;
        width: 50%;
    }
}

@media (max-height: 720px) {
    .banner {
        display: none;
    }
}

@media (max-width: 800px) and (max-height: 1000px) {
    #container {
        height: auto;
    }
}

@media (max-height: 830px) {
    .additional .links {
        grid-template-columns: auto auto auto;
    }
}

@media (prefers-color-scheme: dark) {
    :root {
        background-image: url("/img/backgrounds/mountain.jpg");
    }

    :root,
    a {
        color: white;
        opacity: 1;
    }

    .item img,
    .banner img {
        filter: brightness(0) invert(1);
        opacity: 1;
    }

    .main,
    #holiday-panel {
        background-color: #1e1e1e;
        opacity: 0.97;
    }

    .line {
        border-bottom: 1px solid white;
        opacity: 1;
    }
}