/*
 * Shared frontend treatment for Kirby's built-in Blocks field.
 * Add the `blocks` class to the block collection wrapper and load this file
 * through the header snippet's `blockStyles` option.
 */

.blocks {
    --block-reading-width: 75ch;
    --block-flow-space: clamp(var(--space-xl), 4vw, var(--space-4xl));
    --block-media-radius: var(--radius-medium);
    width: 100%;
    min-width: 0;
    color: var(--text-main);
}

.blocks > .k-block {
    width: min(100%, var(--block-reading-width));
    min-width: 0;
}

#lecture-page .blocks > .k-block-type-heading {
    width: 100%;
}

.blocks > .k-block + .k-block {
    margin-top: var(--block-flow-space);
}

.blocks > :is(
    .k-block-type-image,
    .k-block-type-gallery,
    .k-block-type-video
) {
    width: min(100%, 90rem);
    max-width: none;
}

.blocks > .k-block-type-heading + :is(
    .k-block-type-text,
    .k-block-type-list,
    .k-block-type-markdown
) {
    margin-top: var(--space-lg);
}

/* Typography */

.blocks :is(h1, h2, h3, h4, h5, h6) {
    margin-top: var(--space-xl) !important;
    font-weight: normal;
    text-wrap: balance;
}

.blocks h1 {
    font-size: clamp(2.75rem, 7vw, 6rem);
}

.blocks h2 {
    font-size: var(--fs-lg);
}

.blocks h3 {
    font-size: var(--fs-md);
}

.blocks h4 {
    font-size: var(--fs-sm);
}

.blocks h5,
.blocks h6 {
    font-size: var(--fs-base);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.blocks h6 {
    font-size: var(--fs-xs);
}

.blocks p,
.blocks li,
.blocks dd,
.blocks dt {
    font-size: var(--fs-sm);
    overflow-wrap: anywhere;
}

.blocks p + p {
    margin-top: 1.15em;
}

.blocks :is(strong, b) {
    font-weight: 600;
}

.blocks em {
    font-size: inherit;
}

.blocks a,
.blocks a:visited {
    color: inherit;
    text-decoration-line: underline;
    text-decoration-thickness: 0.09em;
    text-underline-offset: 0.14em;
}

.blocks a:hover,
.blocks a:focus-visible {
    background: var(--bg-main);
    color: var(--accent);
}

/* Lists */

.blocks .k-block-type-list :is(ul, ol),
.blocks .k-block-type-text :is(ul, ol),
.blocks .k-block-type-markdown :is(ul, ol) {
    display: grid;
    gap: 0.45em;
    padding-inline-start: 1.4em;
}

.blocks :is(ul, ol) :is(ul, ol) {
    margin-top: 0.45em;
}

.blocks li::marker {
    color: var(--bg-main);
    font-variant-numeric: tabular-nums;
}

/* Quote */

.blocks .k-block-type-quote blockquote {
    padding: clamp(var(--space-lg), 4vw, var(--space-3xl));
    border-inline-start: 0.4rem solid var(--accent);
    border-radius: var(--block-media-radius);
    background: var(--bg-main);
    color: var(--accent);
}

.blocks .k-block-type-quote blockquote > :not(footer) {
    font-size: clamp(1.5rem, 3.2vw, 2.75rem);
    line-height: 1.2;
    text-wrap: pretty;
}

.blocks .k-block-type-quote footer {
    margin-top: var(--space-xl);
    padding-top: var(--space-sm);
    border-top: 1px solid currentColor;
    font-size: var(--fs-xs);
    line-height: 1.4;
}

/* Divider */

.blocks .k-block-type-line hr {
    width: 100%;
    height: 2px;
    border: 0;
    background: var(--bg-main);
}

/* Code */

.blocks pre {
    max-width: 100%;
    overflow-x: auto;
    padding: clamp(var(--space-md), 3vw, var(--space-xl));
    border: 2px solid var(--bg-main);
    border-radius: var(--block-media-radius);
    background: var(--bg-main);
    color: var(--accent);
    box-shadow: var(--shadow);
    font-family: "necto", ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: var(--fs-xs);
    line-height: 1.6;
    tab-size: 2;
    white-space: pre;
    -webkit-overflow-scrolling: touch;
}

.blocks code {
    font-family: "necto", ui-monospace, SFMono-Regular, Consolas, monospace;
}

.blocks :not(pre) > code {
    padding: 0.1em 0.35em;
    border-radius: var(--radius-small);
    background: var(--bg-main-hover);
    font-size: 0.9em;
}

/* Images, galleries and video */

.blocks > .k-block-type-video {
    padding-bottom: var(--space-xxl);
}

.blocks :is(
    .k-block-type-image,
    .k-block-type-gallery,
    .k-block-type-video
) figure {
    position: relative;
    width: 100%;
    margin: 0;
    overflow: hidden;
    border-radius: var(--block-media-radius);
    background: var(--bg-main);
    box-shadow: var(--shadow);
}

.blocks :is(
    .k-block-type-image,
    .k-block-type-gallery
) figcaption {
    position: absolute;
    z-index: 2;
    right: var(--space-md);
    bottom: var(--space-md);
    left: var(--space-md);
    padding: var(--space-xs) var(--space-sm);
    border: 0;
    color: var(--accent);
    font-size: var(--fs-xs);
    line-height: 1.35;
    text-shadow: var(--shadow);
    overflow-wrap: anywhere;
    pointer-events: none;
}

.blocks .k-block-type-video figcaption {
    padding: var(--space-sm) var(--space-md);
    border-top: 1px solid color-mix(in srgb, var(--accent) 35%, transparent);
    color: var(--accent);
    font-size: var(--fs-xs);
    line-height: 1.45;
}

.blocks figcaption p {
    margin: 0;
    font-size: inherit;
    line-height: inherit;
}

.blocks .k-block-type-image figure > a {
    display: block;
    color: inherit;
    text-decoration: none;
}

.blocks .k-block-type-image figure > a:hover,
.blocks .k-block-type-image figure > a:focus-visible {
    background: transparent;
}

.blocks .k-block-type-image img {
    display: block;
    width: 100%;
    height: auto;
    background: var(--bg-main);
}

.blocks figure[data-ratio="1/1"] { --block-ratio: 1 / 1; }
.blocks figure[data-ratio="16/9"] { --block-ratio: 16 / 9; }
.blocks figure[data-ratio="10/8"] { --block-ratio: 10 / 8; }
.blocks figure[data-ratio="21/9"] { --block-ratio: 21 / 9; }
.blocks figure[data-ratio="7/5"] { --block-ratio: 7 / 5; }
.blocks figure[data-ratio="4/3"] { --block-ratio: 4 / 3; }
.blocks figure[data-ratio="5/3"] { --block-ratio: 5 / 3; }
.blocks figure[data-ratio="3/2"] { --block-ratio: 3 / 2; }
.blocks figure[data-ratio="3/1"] { --block-ratio: 3 / 1; }

.blocks .k-block-type-image figure[data-crop] > :is(img, a),
.blocks .k-block-type-gallery figure[data-crop] li {
    aspect-ratio: var(--block-ratio, 16 / 9);
    overflow: hidden;
}

.blocks .k-block-type-image figure[data-crop] > img,
.blocks .k-block-type-image figure[data-crop] > a img,
.blocks .k-block-type-gallery figure[data-crop] li img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.blocks .k-block-type-gallery ul {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(0.35rem, 1vw, var(--space-md));
    margin: 0;
    padding: clamp(0.35rem, 1vw, var(--space-md));
    list-style: none;
}

.blocks .k-block-type-gallery li {
    min-width: 0;
    overflow: hidden;
    background: var(--silver);
}

.blocks .k-block-type-gallery li:only-child {
    grid-column: 1 / -1;
}

.blocks .k-block-type-gallery li img {
    display: block;
    width: 100%;
    height: auto;
}

.blocks .k-block-type-video :is(iframe, video) {
    display: block;
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    border: 0;
    background: #000;
    object-fit: contain;
}

/* Markdown and table output */

.blocks .k-block-type-markdown > * + * {
    margin-top: var(--space-md);
}

.blocks .k-block:has(> table) {
    max-width: 100%;
    overflow-x: auto;
    border: 2px solid var(--bg-main);
    border-radius: var(--block-media-radius);
    -webkit-overflow-scrolling: touch;
}

.blocks table {
    width: 100%;
    min-width: 36rem;
    border-collapse: collapse;
    font-size: var(--fs-xs);
    font-variant-numeric: tabular-nums;
}

.blocks :is(th, td) {
    padding: var(--space-sm) var(--space-md);
    border-bottom: 1px solid var(--bg-main);
    text-align: start;
    vertical-align: top !important;
}

.blocks th {
    background: var(--bg-main);
    color: var(--accent);
    font-weight: normal;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.blocks tbody tr:last-child td {
    border-bottom: 0;
}

.blocks tbody tr:nth-child(even) {
    background: color-mix(in srgb, var(--bg-main) 8%, transparent);
}

@media (max-width: 768px) {
    .blocks {
        --block-flow-space: var(--space-2xl);
        --block-media-radius: var(--radius-small);
    }

    .blocks h1 {
        font-size: var(--fs-xl);
    }

    .blocks h2 {
        font-size: var(--fs-md);
    }

    .blocks h3 {
        font-size: var(--fs-sm);
    }

    .blocks .k-block-type-quote blockquote > :not(footer) {
        font-size: var(--fs-sm);
    }

    .blocks :is(
        .k-block-type-image,
        .k-block-type-gallery
    ) figcaption {
        right: var(--space-sm);
        bottom: var(--space-sm);
        left: var(--space-sm);
    }

    .blocks .k-block-type-video figcaption {
        padding: var(--space-xs) var(--space-sm);
    }
}

@media (max-width: 560px) {
    .blocks .k-block-type-gallery ul {
        grid-template-columns: 1fr;
    }

    .blocks .k-block-type-gallery li:only-child {
        grid-column: auto;
    }
}

@media (prefers-reduced-motion: reduce) {
    .blocks *,
    .blocks *::before,
    .blocks *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
    }
}