* {
    cursor: url("images/non-photo-blue-cursor-20px.png"), auto;
}

::selection {
    background-color: #FFF6C5;
}

html {
    font-size: 0.925em;
    box-sizing: border-box;
    scroll-behavior: smooth;
    z-index: 1;
}

.homepage-img {
    max-height: 8em;
    height: auto;
    display: inline-block;
    margin: 0;
    margin-top: 8px;
    justify-content: right;
    padding-left: 0;
    align-items: right;

    @media (max-width: 768px) {
        max-height: 1em;
    }
}

#meteor-shower {
    top: 0;
    left: 0;
    box-sizing: border-box;

    position: fixed;

    /* put the meteor shower canvas in the background */
    pointer-events: none;
    z-index: 0;
}

#page {
    display: grid;
    position: relative;
    grid-template-columns: 200px 1fr;
    gap: 3em;

    max-width: 800px;
    margin: 0 auto;
    padding: 1rem;

    @media (max-width: 768px) {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto;
        gap: 0;
    }
}

.rainbow {
    color: black;
    background-color: #FFFFFF;
}

/* rainbow text syntax from https://stackoverflow.com/questions/54702124/rainbow-text-animation-using-only-css */

.rainbow:hover {
    background: linear-gradient(
        to right,
        #6666ff, #0099ff , #00ff00, #ff3399, #6666ff);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    animation: rainbow_animation 4s ease-in-out infinite;
    background-size: 500% 100%;
}

@keyframes rainbow_animation {
    0%,100% {
        background-position: 0 0;
    }

    50% {
        background-position: 100% 0;
    }
}

aside {
    position: sticky;
    top: 2em;
    align-self: flex-start;
}

@media (max-width: 768px) {
    aside {
        position: static; 
        top: unset; 
        padding-top: 0;
    } 

    nav ul {
        display: flex;
        justify-content: flex-end;
        gap: 1.25rem;
        flex-wrap: wrap;
    }

    nav li {
        display: inline-block;
    }

    nav a {
        white-space: nowrap;
    }
}

nav {
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
    width: 100%; 

    @media (min-width: 768px) { 
        display: block; 
        margin-bottom: 0; 
    }
}

#main {
    /* make sure the content inside main doesn't spill over outside the grid */
    min-width: 0;
    max-width: 36rem;
}

ul {
    display: flex; 
    justify-content: flex-end;
    margin-left: -0.5rem; 
    list-style: none;
    padding-left: 0; /* remove left indent */
    text-align: right;

    @media (min-width: 768px) { 
        display: block; 
        margin-left: 0; 
        gap: 0;
    }
}

a {
    text-decoration: none;
}

.portal { 
    color: #1F2937;
    background: #e6e6fa;
    margin: 8px 8px 8px 0px;
    padding: 4px 8px;
    display: inline-block;
    text-align: center;
    vertical-align: top;

    border: 1px;
    border-radius: 6px;
    text-decoration: none;
    transition: background-color 0.2s ease, border-color 0.2s ease;

    justify-self: start;
    align-self: start;
}

.section {
    display: grid;
    text-wrap: nowrap;
    grid-template-columns: repeat(4, minmax(100px, 1fr)); 
    grid-auto-flow: row dense;
    gap: 1.25rem; 

    padding: 0.35em;
    border-radius: 8px;
    
    @media (min-width: 400px) { 
        grid-template-columns: repeat(7, minmax(100px, 1fr)); 
    }
}

.date {
    opacity: 0.25;
}

.content {
    grid-column: span 3 / span 3; 
}

.locked.content {
    opacity: 0.2;
    pointer-events: none;
}

.resources {
    display: inline-flex;
    flex-wrap: wrap;
    margin-left: 0px;
    margin-bottom: 0px;
}

.slides {
    background: #C4B5FD;
}

.handout {
    background: #93c5fd;
}

.misc-link {
    background: #86efac;
}

.reading {
    background: #fc9e9e;
}

.clicky {
    box-shadow: inset 0 -4.8px 0 0 rgba(0, 0, 0, 0.2);
    transition: 0.1s;
    padding-bottom: 8px;
    /* text-shadow: 0px 3px rgba(0, 0, 0, 0.2); */
}
.clicky:hover {
    box-shadow: inset 0 -2.25px 0 0 rgba(0, 0, 0, 0.2);
}
.clicky:active {
    box-shadow: inset 0 -2px 0 0 rgba(0, 0, 0, 0.2);
    text-shadow: 0px 1px 0 0 rgba(0, 0, 0, 0.2);
}