:root {
    --ink: #151714;
    --muted: #62665e;
    --paper: #f3f3ee;
    --surface: #e8e9e2;
    --line: #cdd0c7;
    --signal: #c7ff3d;
    --content-width: 1240px;
    --page-gutter: clamp(1.25rem, 4vw, 4rem);
    --sans: Arial, Helvetica, sans-serif;
    --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    color: var(--ink);
    background-color: var(--paper);
    font-family: var(--sans);
    font-size: 1rem;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

body::before {
    position: fixed;
    z-index: -1;
    inset: 0;
    /*background-image: linear-gradient(to right, rgb(21 23 20 / 4%) 1px, transparent 1px);*/
    background-size: calc((100vw - (2 * var(--page-gutter))) / 6) 100%;
    background-position: var(--page-gutter) 0;
    content: "";
    pointer-events: none;
}

a {
    color: inherit;
    text-decoration-thickness: 1px;
    text-underline-offset: 0.2em;
}

a:focus-visible {
    outline: 2px solid var(--ink);
    outline-offset: 4px;
}

img {
    display: block;
    max-width: 100%;
}

.skip-link {
    position: fixed;
    z-index: 20;
    top: 0.75rem;
    left: 0.75rem;
    padding: 0.5rem 0.75rem;
    background: var(--signal);
    font-family: var(--mono);
    font-size: 0.75rem;
    transform: translateY(-200%);
}

.skip-link:focus {
    transform: translateY(0);
}

.site-header,
.site-main,
.site-footer {
    width: min(100% - (2 * var(--page-gutter)), var(--content-width));
    margin-inline: auto;
}

.site-header {
    border-bottom: 1px solid var(--ink);
}

.site-nav {
    display: flex;
    min-height: 5.25rem;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.wordmark {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--mono);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    text-decoration: none;
}

.wordmark-mark {
    display: grid;
    width: 2rem;
    height: 2rem;
    place-items: center;
    color: var(--paper);
    background: var(--ink);
    font-size: 0.65rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: clamp(1.25rem, 3vw, 2.75rem);
    font-family: var(--mono);
    font-size: 0.75rem;
    text-transform: lowercase;
}

.nav-links a {
    text-decoration: none;
}

.nav-links a::before {
    color: var(--muted);
    content: "./";
}

.nav-links a:hover,
.nav-links a:focus-visible {
    text-decoration: underline;
}

.site-main {
    min-height: 70vh;
}

.hero {
    display: flex;
    min-height: min(47rem, calc(100vh - 5.25rem));
    max-width: 70rem;
    flex-direction: column;
    justify-content: center;
    padding: clamp(5rem, 11vw, 9.5rem) 0;
}

.eyebrow,
.section-index,
.index-heading,
.article-meta,
.back-link {
    margin: 0;
    color: var(--muted);
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.status-dot {
    display: inline-block;
    width: 0.55rem;
    height: 0.55rem;
    margin-right: 0.65rem;
    border: 1px solid var(--ink);
    background: var(--signal);
    border-radius: 50%;
    box-shadow: 0 0 0 3px rgb(199 255 61 / 18%);
}

.hero h1,
.page-header h1,
.article-header h1 {
    margin: 1.5rem 0 2rem;
    font-size: clamp(3.25rem, 8.3vw, 7.8rem);
    font-weight: 500;
    letter-spacing: -0.07em;
    line-height: 0.91;
}

.hero h1 span {
    color: var(--muted);
}

.hero-intro {
    max-width: 40rem;
    margin: 0;
    font-size: clamp(1.15rem, 2vw, 1.5rem);
    line-height: 1.45;
}

.hero-actions {
    display: flex;
    align-items: center;
    gap: 2rem;
    margin-top: 3rem;
}

.button {
    display: inline-flex;
    min-height: 3.4rem;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    padding: 0.8rem 1rem;
    font-family: var(--mono);
    font-size: 0.78rem;
    text-decoration: none;
}

.button-primary {
    color: var(--paper);
    background: var(--ink);
}

.button-primary:hover {
    color: var(--ink);
    background: var(--signal);
}

.text-link {
    font-family: var(--mono);
    font-size: 0.78rem;
}

.section-grid {
    display: grid;
    grid-template-columns: minmax(9rem, 1fr) minmax(0, 4fr);
    gap: clamp(2rem, 6vw, 7rem);
    padding: clamp(5rem, 9vw, 8rem) 0;
    border-top: 1px solid var(--line);
}

.content-section h2,
.contact h2 {
    max-width: 50rem;
    margin: 0 0 clamp(2.5rem, 5vw, 4.5rem);
    font-size: clamp(2.15rem, 4.7vw, 4.6rem);
    font-weight: 500;
    letter-spacing: -0.05em;
    line-height: 1;
}

.prose {
    max-width: 58rem;
    font-size: 1.08rem;
}

.prose p {
    margin: 0;
}

.columns {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(2rem, 5vw, 5rem);
}

.principles {
    background: var(--surface);
    box-shadow: 0 0 0 100vmax var(--surface);
    clip-path: inset(0 -100vmax);
}

.principle-list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.principle-list li {
    display: grid;
    grid-template-columns: 3rem 1fr;
    gap: 1.5rem;
    padding: 2rem 0;
    border-top: 1px solid var(--line);
}

.principle-list li:last-child {
    border-bottom: 1px solid var(--line);
}

.principle-list > li > span {
    padding-top: 0.3rem;
    color: var(--muted);
    font-family: var(--mono);
    font-size: 0.7rem;
}

.principle-list h3 {
    margin: 0 0 0.35rem;
    font-size: 1.2rem;
    font-weight: 600;
}

.principle-list p {
    max-width: 35rem;
    margin: 0;
    color: var(--muted);
}

.contact {
    display: grid;
    grid-template-columns: minmax(9rem, 1fr) minmax(0, 4fr);
    gap: clamp(2rem, 6vw, 7rem);
    padding: clamp(6rem, 11vw, 10rem) 0;
    border-top: 1px solid var(--line);
}

.contact > div > p {
    max-width: 42rem;
    margin: -2rem 0 2.5rem;
    color: var(--muted);
    font-size: 1.1rem;
}

.contact-link {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    font-family: var(--mono);
    font-size: clamp(0.9rem, 2vw, 1.15rem);
}

.site-footer {
    display: flex;
    min-height: 7rem;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    border-top: 1px solid var(--ink);
    color: var(--muted);
    font-family: var(--mono);
    font-size: 0.7rem;
}

.footer-source {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
}

.footer-source img {
    width: 1rem;
    height: 1rem;
}

.page-header {
    padding: clamp(5rem, 10vw, 9rem) 0 clamp(4rem, 8vw, 7rem);
}

.page-header h1 {
    margin-bottom: 1.5rem;
}

.page-header > p:last-child {
    max-width: 35rem;
    margin: 0;
    color: var(--muted);
    font-size: 1.15rem;
}

.article-index {
    padding-bottom: clamp(6rem, 10vw, 10rem);
}

.index-heading {
    display: flex;
    justify-content: space-between;
    padding: 0 0 0.8rem;
    border-bottom: 1px solid var(--ink);
}

.article-row {
    display: grid;
    grid-template-columns: minmax(8rem, 1fr) minmax(0, 4fr) auto;
    gap: 2rem;
    align-items: start;
    padding: 2rem 0;
    border-bottom: 1px solid var(--line);
}

.article-row time {
    padding-top: 0.35rem;
    color: var(--muted);
    font-family: var(--mono);
    font-size: 0.7rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.article-row h2 {
    margin: 0;
    font-size: clamp(1.4rem, 2.7vw, 2.2rem);
    font-weight: 500;
    letter-spacing: -0.035em;
    line-height: 1.15;
}

.article-row h2 a {
    text-decoration: none;
}

.article-row h2 a:hover {
    text-decoration: underline;
}

.article-row p {
    max-width: 45rem;
    margin: 0.65rem 0 0;
    color: var(--muted);
}

.article-arrow {
    display: grid;
    width: 2.5rem;
    height: 2.5rem;
    place-items: center;
    border: 1px solid var(--line);
    font-family: var(--mono);
    text-decoration: none;
}

.article-row:hover .article-arrow {
    border-color: var(--ink);
    background: var(--signal);
}

.empty-state {
    display: flex;
    min-height: 14rem;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    color: var(--muted);
    font-family: var(--mono);
    font-size: 0.8rem;
    border-bottom: 1px solid var(--line);
}

.article-detail {
    max-width: 58rem;
    margin-inline: auto;
    padding: clamp(4rem, 8vw, 7rem) 0 clamp(6rem, 10vw, 10rem);
}

.back-link {
    display: inline-block;
}

.article-header {
    padding: clamp(4rem, 8vw, 7rem) 0 3rem;
    border-bottom: 1px solid var(--ink);
}

.article-header h1 {
    margin-top: 1.5rem;
    font-size: clamp(3rem, 7.5vw, 6.5rem);
}

.article-meta {
    display: flex;
    justify-content: space-between;
    gap: 2rem;
}

.article-body {
    max-width: 44rem;
    margin-inline: auto;
    padding: clamp(3rem, 7vw, 6rem) 0;
    font-size: 1.08rem;
}

.article-body > *:first-child {
    margin-top: 0;
}

.article-body h2,
.article-body h3 {
    margin: 2.5em 0 0.7em;
    letter-spacing: -0.025em;
    line-height: 1.2;
}

.article-body h2 {
    font-size: 1.8rem;
}

.article-body h3 {
    font-size: 1.35rem;
}

.article-body p,
.article-body ul,
.article-body ol,
.article-body blockquote {
    margin-block: 1.25em;
}

.article-body code {
    padding: 0.15em 0.3em;
    background: var(--surface);
    font-family: var(--mono);
    font-size: 0.88em;
}

.article-body pre {
    overflow-x: auto;
    margin: 2rem 0;
    padding: 1.25rem;
    color: var(--paper);
    background: var(--ink);
    font-size: 0.9rem;
}

.article-body pre code {
    padding: 0;
    color: inherit;
    background: transparent;
}

.article-body blockquote {
    margin-inline: 0;
    padding-left: 1.5rem;
    border-left: 3px solid var(--signal);
    color: var(--muted);
    font-size: 1.2rem;
}

.article-body img {
    width: 100%;
    margin-block: 2rem;
}

.article-footer {
    display: flex;
    justify-content: space-between;
    gap: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--ink);
    font-family: var(--mono);
    font-size: 0.75rem;
}

.article-footer p {
    margin: 0;
    color: var(--muted);
}

@media (max-width: 700px) {
    body::before {
        background-size: calc((100vw - (2 * var(--page-gutter))) / 3) 100%;
    }

    .site-nav {
        min-height: 4.5rem;
    }

    .wordmark > span:last-child {
        display: none;
    }

    .nav-links {
        gap: 1rem;
    }

    .hero {
        min-height: auto;
        padding: 6rem 0;
    }

    .hero h1,
    .page-header h1,
    .article-header h1 {
        letter-spacing: -0.055em;
    }

    .hero-actions {
        align-items: flex-start;
        flex-direction: column;
        gap: 1.5rem;
    }

    .section-grid,
    .contact {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .columns {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .content-section h2,
    .contact h2 {
        margin-bottom: 2.5rem;
    }

    .contact > div > p {
        margin-top: -1rem;
    }

    .site-footer,
    .article-footer {
        align-items: flex-start;
        flex-direction: column;
        justify-content: center;
        gap: 0.75rem;
        padding-block: 2rem;
    }

    .article-row {
        grid-template-columns: 1fr auto;
        gap: 1rem;
    }

    .article-row time {
        grid-column: 1 / -1;
    }

    .article-meta {
        align-items: flex-start;
        flex-direction: column;
        gap: 0.5rem;
    }

    .article-body {
        font-size: 1rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
}