/* ========================================
   Base
======================================== */

body {
    font-family: var(--font-main);
}

.post-page {
    min-height: 100vh;
    background: var(--theme-light-bg);
    color: var(--theme-light-text);
    overflow-x: hidden;
}

.post-page::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 10;

    pointer-events: none;
    opacity: 0.04;

    background-image:
        linear-gradient(
            to right,
            var(--color-black) 1px,
            transparent 1px
        ),
        linear-gradient(
            to bottom,
            var(--color-black) 1px,
            transparent 1px
        );

    background-size: 72px 72px;
}

/* ========================================
   Hero
======================================== */

.post-hero {
    min-height: 50vh;
    padding: var(--space-m) var(--space-s-m);
    border-bottom: 1px solid var(--theme-light-border);

    display: grid;
    grid-template-rows: auto 1fr;
    gap: var(--space-xl);
}

.post-hero__meta {
    display: flex;
    justify-content: space-between;
    gap: var(--space-l);

    color: var(--theme-light-muted);

    text-transform: uppercase;
    font-size: var(--fluid--2);
    font-weight: 700;
    letter-spacing: 0.1em;
}

.post-hero__back {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2xs);

    color: inherit;
    text-decoration: none;

    transition:
        color 250ms var(--ease),
        transform 250ms var(--ease);
}

.post-hero__back-icon {
    width: 1.25em;
    height: 1.25em;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.75;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.post-hero__back:hover {
    color: var(--theme-light-accent);
    transform: translateX(-0.2rem);
}

.post-hero__content {
    align-self: end;

    display: grid;
    grid-template-columns: 1.5fr 0.6fr;
    gap: var(--space-l-xl);
    align-items: end;
}

.post-hero__kicker {
    grid-column: 1 / -1;

    color: var(--theme-light-accent);

    text-transform: uppercase;
    font-size: var(--fluid--2);
    letter-spacing: 0.1em;
}

.post-hero__title {
    max-width: 20ch;

    font-size: var(--fluid-5);
    line-height: 0.88;
    letter-spacing: -0.08em;
    text-transform: uppercase;
}

.post-hero__summary {
    max-width: 34rem;

    text-transform: uppercase;
    font-size: var(--fluid--2);
    letter-spacing: 0.1em;
}

.post-aside__label {
    color: var(--theme-light-muted);
    margin-bottom: 0.35rem;
}

.post-aside__value {
    margin-bottom: 2rem;
    font-weight: 700;
}

.post-aside__value a {
    position: relative;

    color: inherit;
    text-decoration: none;
    text-underline-offset: 0.25em;
}

.post-aside__value a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -0.35rem;

    width: 100%;
    height: 1px;

    background: currentColor;
    transform: scaleX(0);
    transform-origin: right;

    transition: transform 300ms var(--ease);
}

.post-aside__value a:hover::after,
.post-aside__value a:focus-visible::after {
    transform: scaleX(1);
    transform-origin: left;
}

/* ========================================
   Article Layout
======================================== */

.post-layout {
    padding: var(--space-2xl-3xl) var(--space-s-m);

    display: grid;
    grid-template-columns:
        0.55fr
        minmax(0, 1.25fr)
        0.35fr;

    gap: var(--space-l-xl);

    border-bottom: 1px solid var(--theme-light-border);
}

.post-article {
    grid-column: 2;
    min-width: 0;
}

/* ========================================
   Article Lead
======================================== */

.post-article__lead {
    margin-bottom: var(--space-xl-2xl);

    font-size: var(--fluid-4);
    line-height: 0.95;
    letter-spacing: -0.055em;
}

/* ========================================
   Article Typography
======================================== */

.post-article__content {
    color: var(--color-ink);

    font-size: var(--fluid--1);
    line-height: 1.65;
}

/*
   Use element-specific spacing rather than applying
   one identical margin to every element.
*/

.post-article__content > p + p {
    margin-top: var(--space-s);
}

.post-article__content > * + h2 {
    margin-top: var(--space-2xl);
}

.post-article__content > * + h3 {
    margin-top: var(--space-xl);
}

.post-article__content h2 {
    max-width: 18ch;
    margin-bottom: var(--space-m);

    color: var(--theme-light-text);

    font-size: var(--fluid-4);
    line-height: 0.9;
    letter-spacing: -0.06em;
    text-transform: uppercase;
}

.post-article__content h3 {
    margin-bottom: var(--space-s);

    color: var(--theme-light-text);

    font-size: var(--fluid-2);
    line-height: 1;
    letter-spacing: -0.045em;
    text-transform: uppercase;
}

.post-article__content h4,
.post-article__content h5,
.post-article__content h6 {
    margin-top: var(--space-l);
    margin-bottom: var(--space-xs);

    color: var(--theme-light-text);

    line-height: 1.15;
    font-weight: 700;
}

.post-article__content h4 {
    font-size: var(--fluid-1);
}

.post-article__content h5 {
    font-size: var(--fluid-0);
}

.post-article__content h6 {
    font-size: var(--fluid--1);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

/* ========================================
   Paragraph / Inline Content
======================================== */

.post-article__content p {
    max-width: 70ch;
}

.post-article__content strong {
    color: var(--theme-light-text);
    font-weight: 700;
}

.post-article__content em {
    font-style: italic;
}

.post-article__content a {
    color: var(--theme-light-text);
    text-decoration-thickness: 1px;
    text-underline-offset: 0.2em;

    transition: color 200ms ease;
}

.post-article__content a:hover {
    color: var(--theme-light-accent);
}

/* ========================================
   Lists
======================================== */

.post-article__content ul,
.post-article__content ol {
    max-width: 65ch;
    margin-block: var(--space-m);
    padding-left: var(--space-l);
}

.post-article__content ul {
    list-style: disc;
}

.post-article__content ol {
    list-style: decimal;
}

.post-article__content li {
    padding-left: var(--space-3xs);
}

.post-article__content li + li {
    margin-top: var(--space-2xs);
}

.post-article__content li::marker {
    color: var(--theme-light-accent);
    font-weight: 700;
}

/* Nested lists */
.post-article__content li > ul,
.post-article__content li > ol {
    margin-block: var(--space-xs);
}

/* ========================================
   Blockquotes
======================================== */

.post-article__content blockquote {
    margin-block: var(--space-xl-2xl);
    padding-left: var(--space-m);

    border-left: 2px solid var(--theme-light-accent);

    color: var(--theme-light-text);

    font-size: var(--fluid-3);
    line-height: 0.95;
    letter-spacing: -0.055em;
}

.post-article__content blockquote p {
    max-width: 20ch;
}

.post-article__content blockquote strong {
    font-weight: 600;
}

/* ========================================
   Figures / Images / Video
======================================== */

.post-article__content figure,
.post-article__figure {
    margin-block: var(--space-xl-2xl);

    border: 1px solid var(--theme-light-border);
    overflow: hidden;

    background: var(--color-paper-soft);
}

.post-article__content figure img,
.post-article__figure img {
    display: block;

    width: 100%;
    height: auto;
    aspect-ratio: 16 / 10;

    object-fit: cover;

    background: var(--color-paper-soft);
    /* filter: grayscale(1); */

    transition:
        filter 600ms var(--ease),
        transform 800ms var(--ease);
}

.post-article__content figure:hover img,
.post-article__figure:hover img {
    /* filter: grayscale(0); */
    transform: scale(1.01);
}

.post-article__content figure video {
    display: block;

    width: 100%;
    height: auto;

    background: var(--color-black);
}

.post-article__content figcaption,
.post-article__figure figcaption {
    padding: var(--space-xs) var(--space-s);

    border-top: 1px solid var(--theme-light-border);

    color: var(--theme-light-muted);

    text-transform: uppercase;
    font-size: var(--fluid--2);
    line-height: 1.4;
    letter-spacing: 0.1em;
}

/* ========================================
   Tables
======================================== */

.post-article__content table {
    width: 100%;
    margin-block: var(--space-xl);

    border-collapse: collapse;
    border-top: 1px solid var(--theme-light-border);
    border-bottom: 1px solid var(--theme-light-border);

    font-size: var(--fluid--1);
    line-height: 1.4;
}

.post-article__content th,
.post-article__content td {
    padding: var(--space-xs) var(--space-s);

    vertical-align: top;
    text-align: left;

    border-bottom: 1px solid var(--theme-light-border);
}

.post-article__content th {
    color: var(--theme-light-text);

    text-transform: uppercase;
    font-size: var(--fluid--2);
    letter-spacing: 0.08em;
    font-weight: 700;
}

.post-article__content tbody tr:last-child td {
    border-bottom: none;
}

.post-article__content tbody tr {
    transition:
        background-color 200ms ease,
        color 200ms ease;
}

.post-article__content tbody tr:hover {
    background: var(--theme-light-text);
    color: var(--theme-light-bg);
}

.post-article__content tbody tr:hover strong {
    color: inherit;
}

/* ========================================
   Code
======================================== */

.post-article__content pre {
    max-width: 100%;
    margin-block: var(--space-xl);

    padding: var(--space-m);

    overflow-x: auto;

    border: 1px solid var(--theme-light-border);
    background: var(--theme-light-text);
    color: var(--theme-light-bg);

    font-size: var(--fluid--1);
    line-height: 1.55;

    tab-size: 4;
}

.post-article__content code {
    font-family:
        "SFMono-Regular",
        Consolas,
        "Liberation Mono",
        Menlo,
        monospace;
}

.post-article__content :not(pre) > code {
    padding: 0.12em 0.35em;

    background: var(--color-paper-soft);
    border: 1px solid var(--theme-light-border);

    color: var(--theme-light-text);

    font-size: 0.9em;
}

.post-article__content pre code {
    padding: 0;
    border: none;
    background: transparent;
    color: inherit;
}

/* ========================================
   Other Semantic Content
======================================== */

.post-article__content hr {
    height: 1px;
    margin-block: var(--space-xl);

    border: 0;
    background: var(--theme-light-border);
}

.post-article__content small {
    font-size: var(--fluid--2);
    color: var(--theme-light-muted);
}

.post-article__content mark {
    padding-inline: 0.15em;

    background: var(--theme-light-accent);
    color: var(--theme-light-text);
}

.post-article__content abbr[title] {
    text-decoration-style: dotted;
    text-underline-offset: 0.2em;
    cursor: help;
}

/* ========================================
   Next Post
======================================== */

.post-next {
    min-height: 55vh;
    padding: var(--space-2xl-3xl) var(--space-s-m);

    background: var(--theme-light-text);
    color: var(--theme-light-bg);
}

.post-next a {
    min-height: inherit;

    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: var(--space-xl);

    color: inherit;
    text-decoration: none;
}

.post-next span {
    color: var(--color-paper-60);

    text-transform: uppercase;
    font-size: var(--fluid--2);
    letter-spacing: 0.1em;
}

.post-next strong {
    max-width: 15ch;

    font-size: var(--fluid-5);
    line-height: 0.95;
    letter-spacing: -0.055em;
    text-transform: uppercase;
    font-weight: 600;

    transition:
        color 300ms var(--ease),
        transform 400ms var(--ease);
}

.post-next a:hover strong {
    color: var(--color-paper-soft);
    transform: translateX(var(--space-2xs));
}

/* ========================================
   Responsive
======================================== */

@media screen and (max-width: 900px) {
    .post-hero {
        min-height: 85vh;
    }

    .post-hero__meta {
        flex-direction: column;
        gap: var(--space-xs);
    }

    .post-hero__content,
    .post-layout {
        grid-template-columns: 1fr;
    }

    .post-article {
        grid-column: auto;
    }

    .post-hero__summary {
        display: grid;
        grid-template-columns: auto 1fr;
        column-gap: var(--space-s);
        align-items: baseline;
    }

    .post-hero__title {
        font-size: var(--fluid-5);
    }

    .post-article__content h2 {
        max-width: 100%;
    }

    .post-article__content table {
        min-width: 42rem;
    }

    /*
       Allows large tables to scroll horizontally
       without forcing the page width.
    */
    .post-article__content:has(table) {
        min-width: 0;
    }

    .post-article__content figure,
    .post-article__figure {
        width: 100%;
    }
}

@media screen and (max-width: 600px) {
    .post-layout {
        padding-inline: var(--space-s);
    }

    .post-article__lead {
        font-size: var(--fluid-3);
    }

    .post-article__content {
        font-size: var(--fluid-0);
    }

    .post-article__content h2 {
        font-size: var(--fluid-4);
    }

    .post-article__content blockquote {
        padding-left: var(--space-s);
        font-size: var(--fluid-3);
    }

    .post-article__content ul,
    .post-article__content ol {
        padding-left: var(--space-m);
    }

    .post-next strong {
        font-size: var(--fluid-4);
    }
}