#daportfolio {
    /* if you want to keep it super simple, you can edit these top variables (variables = the things that start with --) to add some style and leave the rest of the code alone! */

    /* gallery styling */
    --minimum-img-width: 150px;
    --maximum-img-width: 400px;
    --maximum-columns: 4;
    --image-background: #fff;
    --column-gap: var(--spacing);

    /* misc styling */
    --max-width: 800px;
    --spacing: 15px;
    --border-radius: 4px;
    --underline: wavy var(--accent-light);
    --border: dashed var(--accent) 1px;

    /* calculations - don't worry about this */
    --halfspacing: calc(var(--spacing) / 2);
    --doublespacing: calc(var(--spacing) * 2)
}

* {
    box-sizing: border-box;
    max-width: 100%;
    scrollbar-color: var(--accent);
    -ms-overflow-style: none;
    box-decoration-break:clone
}

main, header, footer {
    max-width: var(--max-width);
    margin: 0 auto;
}

footer {
    display: block;
    text-align: center;
    font-size: .9em;
    margin: var(--spacing) auto;
}

/* boxes & flex */
.box {
    padding: var(--spacing);
    border: var(--border);
    margin: var(--spacing) auto;
    border-radius: var(--border-radius);
    break-inside:avoid;
}

.flex {
    display: flex;
    flex-flow: row wrap;
    gap: var(--halfspacing) var(--spacing)
}

.flex > * {
    flex: 1 2 200px;
    margin:0 auto;
}

/* image gallery */
#portfolio {
    margin: var(--doublespacing) auto;
    display: block;
    text-align: center;
    line-height: 1.2em;
    font-size: .9em;
}
#portfolio.columns {
    columns: var(--minimum-img-width) var(--maximum-columns);
    gap: var(--column-gap);
}

#portfolio img {
    margin: var(--spacing) auto;
    max-width: min(var(--maximum-img-width), 100%);
    display:block;
    background-color:var(--image-background)
}

figure {
    margin: var(--spacing) auto;
    break-inside: avoid;
}

/* lightbox */
#portfolio img:hover {
    border-radius: var(--border-radius);
    cursor: pointer;
    outline: var(--border)
}

#lightbox {
    border: none;
    outline: none;
}
#lightbox img {
  max-height:90vh;
  max-width:90vw;
}

::backdrop {
    backdrop-filter: blur(2px) brightness(80%);
}

#portfolio:has(~ #lightbox:popover-open) {
    pointer-events: none;
}
/* makes the lightbox work on small screens, like phones */
@media only screen and (min-width: 600px) {
    #lightbox button {
        display: none;
    }
} 
@media only screen and (max-width: 600px) {
    #lightbox button {
        display: block;
        width:30px;
        height:30px;
        margin:10px auto;
    }
}