/*----------------------------------------------------------------------------*
 * martinsk.github.io — editorial profile theme                                *
 *----------------------------------------------------------------------------*/

:root {
    --bg:        #ffffff;
    --bg-soft:   #f7f7f5;
    --fg:        #111111;
    --fg-muted:  #555555;
    --fg-subtle: #888888;
    --rule:      #e5e2de;
    --rule-dark: #d0ccc7;
    --accent:    #7a0000;
    --code-bg:   #f4f3f0;

    --serif: 'EB Garamond', 'Palatino Linotype', Palatino, Georgia, serif;
    --sans:  -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
             'Helvetica Neue', Arial, sans-serif;
    --mono:  'JetBrains Mono', 'Menlo', 'Consolas', 'DejaVu Sans Mono', monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
    font-size: 17px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--serif);
    font-size: 1.05rem;
    line-height: 1.65;
    color: var(--fg);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    margin: 0;
}

a {
    color: inherit;
    text-decoration: none;
    border-bottom: 1px solid var(--rule-dark);
    transition: color 0.15s ease, border-color 0.15s ease;
}

a:hover {
    color: var(--accent);
    border-color: var(--accent);
}

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

.container {
    width: 92%;
    max-width: 980px;
    margin-left: auto;
    margin-right: auto;
}

/*----------------------------------------------------------------------------*
 * Site navigation                                                             *
 *----------------------------------------------------------------------------*/

.site-header {
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--rule);
}

.site-header__inner {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.site-header__name {
    font-family: var(--serif);
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    border-bottom: none;
}

.site-header__name:hover { color: var(--accent); }

.site-nav {
    display: flex;
    gap: 1.5rem;
    font-family: var(--sans);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.site-nav a {
    color: var(--fg-muted);
    border-bottom: none;
}

.site-nav a:hover { color: var(--fg); }

/*----------------------------------------------------------------------------*
 * Hero                                                                        *
 *----------------------------------------------------------------------------*/

.hero {
    padding: 4.5rem 0 1rem;
}

.hero__grid {
    display: grid;
    grid-template-columns: 5fr 7fr;
    gap: 3.5rem;
    align-items: center;
}

.hero__image {
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    object-position: center 60%;
    border-radius: 2px;
}

.hero__content {
    min-width: 0;
}

.hero__title {
    font-size: clamp(2.4rem, 5vw, 3.6rem);
    font-weight: 400;
    line-height: 1.05;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
}

.hero__role {
    display: inline-block;
    font-family: var(--sans);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--fg-muted);
    border: 1px solid var(--rule-dark);
    padding: 0.35em 0.8em;
    border-radius: 999px;
}

.hero__social {
    list-style: none;
    display: flex;
    gap: 1.25rem;
    margin-top: 1.75rem;
    padding: 0;
    font-family: var(--sans);
    font-size: 0.85rem;
}

.hero__social a {
    color: var(--fg-muted);
    border-bottom: none;
}

.hero__social a:hover { color: var(--accent); }

.hero__quote {
    margin: 2.5rem 0 0;
    padding: 1.75rem 0;
    border-top: 1px solid var(--rule);
    border-bottom: 1px solid var(--rule);
    border-left: none;
    font-style: italic;
    font-size: clamp(1.15rem, 2.5vw, 1.45rem);
    line-height: 1.45;
    color: var(--fg-muted);
}

@media (max-width: 720px) {
    .hero__grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    .hero__image {
        max-width: 280px;
        margin: 0 auto;
    }
}

/*----------------------------------------------------------------------------*
 * Sections                                                                    *
 *----------------------------------------------------------------------------*/

.section {
    margin-top: 5rem;
}

.section__header {
    font-family: var(--sans);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    color: var(--fg-subtle);
    margin-bottom: 1.5rem;
}

.section__body {
    max-width: 680px;
}

.section__body p,
.section__body ul,
.section__body ol {
    margin-bottom: 1.1rem;
}

.section__body ul,
.section__body ol {
    padding-left: 1.4rem;
}

.section__body li { margin-bottom: 0.4rem; }

/*----------------------------------------------------------------------------*
 * Writing grid                                                                *
 *----------------------------------------------------------------------------*/

.writing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.card {
    display: block;
    border: 1px solid var(--rule);
    padding: 1.25rem;
    border-radius: 2px;
    transition: border-color 0.15s ease, transform 0.15s ease;
}

.card:hover {
    border-color: var(--fg);
    transform: translateY(-2px);
}

.card:hover .card__title { color: var(--accent); }

.card__meta {
    font-family: var(--sans);
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--fg-subtle);
    margin-bottom: 0.5rem;
}

.card__title {
    font-size: 1.1rem;
    font-weight: 600;
    line-height: 1.25;
    margin-bottom: 0.4rem;
    border-bottom: none;
}

.card__summary {
    font-size: 0.95rem;
    color: var(--fg-muted);
    line-height: 1.5;
}

/*----------------------------------------------------------------------------*
 * Project list                                                                *
 *----------------------------------------------------------------------------*/

.project {
    display: grid;
    grid-template-columns: 200px 1fr auto;
    gap: 1.5rem;
    align-items: start;
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--rule);
}

.project:first-of-type { border-top: 1px solid var(--rule); }

.project__thumb {
    width: 200px;
    aspect-ratio: 8 / 5;
    object-fit: cover;
    object-position: top center;
    border: 1px solid var(--rule);
    border-radius: 2px;
    background: var(--bg-soft);
}

.project__info { min-width: 0; }

.project__name {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.2rem;
}

.project__desc {
    color: var(--fg-muted);
    font-size: 0.98rem;
    line-height: 1.55;
    max-width: 620px;
}

.project__links {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    align-items: flex-start;
    font-family: var(--sans);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    white-space: nowrap;
    margin-top: 0.1rem;
}

.project__links a {
    color: var(--fg-muted);
    border-bottom: none;
}

.project__links a:hover { color: var(--accent); }

@media (max-width: 860px) {
    .project {
        grid-template-columns: 140px 1fr;
        grid-template-areas:
            "thumb info"
            "links links";
        gap: 1rem 1.25rem;
    }
    .project__thumb { grid-area: thumb; width: 140px; }
    .project__info { grid-area: info; }
    .project__links {
        grid-area: links;
        flex-direction: row;
        gap: 1rem;
        margin-top: 0;
    }
}

@media (max-width: 560px) {
    .project {
        grid-template-columns: 1fr;
        grid-template-areas:
            "thumb"
            "info"
            "links";
        gap: 0.75rem;
    }
    .project__thumb { width: 100%; }
}

/*----------------------------------------------------------------------------*
 * Tables                                                                      *
 *----------------------------------------------------------------------------*/

table {
    border-collapse: collapse;
    font-size: 0.95rem;
    width: 100%;
    margin: 1rem 0 1.4rem 0;
}

th, td {
    padding: 0.5rem 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--rule);
}

thead th {
    border-bottom: 2px solid var(--fg);
    font-family: var(--sans);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

tbody tr:last-child td { border-bottom: 2px solid var(--fg); }

/*----------------------------------------------------------------------------*
 * Inline code & pre blocks                                                    *
 *----------------------------------------------------------------------------*/

code {
    font-family: var(--mono);
    font-size: 0.8rem;
    background: var(--code-bg);
    padding: 0.08em 0.35em;
    border-radius: 3px;
}

pre {
    background: var(--code-bg);
    border-left: 2px solid var(--fg);
    padding: 1rem 1.2rem;
    overflow-x: auto;
    font-size: 0.85rem;
    line-height: 1.55;
    margin: 1rem 0 1.4rem 0;
}

pre code {
    background: none;
    padding: 0;
    border-radius: 0;
    font-size: inherit;
}

/*----------------------------------------------------------------------------*
 * Link groups (e.g. article artifact lists)                                   *
 *----------------------------------------------------------------------------*/

.links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1.25rem;
    margin: 1rem 0 1.4rem;
}

.links a {
    border-bottom: none;
    color: var(--fg-muted);
    font-family: var(--sans);
    font-size: 0.9rem;
}

.links a:hover { color: var(--accent); }

/*----------------------------------------------------------------------------*
 * Footer                                                                      *
 *----------------------------------------------------------------------------*/

footer {
    margin-top: 6rem;
    padding: 2rem 0 3rem;
    border-top: 1px solid var(--rule);
    color: var(--fg-muted);
    font-family: var(--sans);
    font-size: 0.8rem;
}

footer a { color: var(--fg-muted); border-bottom: none; }
footer a:hover { color: var(--accent); }

/*----------------------------------------------------------------------------*
 * Article pages (subpages)                                                    *
 *----------------------------------------------------------------------------*/

article header {
    padding: 3rem 0 1.5rem;
}

article h1 {
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    font-weight: 400;
    line-height: 1.15;
    margin-bottom: 0.75rem;
}

article .subtitle {
    font-style: italic;
    font-size: 1.15rem;
    color: var(--fg-muted);
    max-width: 680px;
}

article h2 {
    font-size: 1.35rem;
    font-weight: 600;
    margin-top: 2.5rem;
    margin-bottom: 0.75rem;
}

article h3 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-top: 1.75rem;
    margin-bottom: 0.5rem;
}

/*----------------------------------------------------------------------------*
 * Org-mode export fallback (notes pages)                                      *
 *----------------------------------------------------------------------------*/

.title {
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    font-weight: 400;
    line-height: 1.15;
    margin: 2rem 0 0.75rem;
}

.subtitle {
    font-style: italic;
    font-size: 1.1rem;
    color: var(--fg-muted);
    margin-bottom: 2rem;
    font-weight: normal;
}

.toc-strip {
    margin: 1.2rem 0 2rem;
    padding: 0.75rem 0;
    border-top: 1px solid var(--rule);
    border-bottom: 1px solid var(--rule);
    font-family: var(--sans);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--fg-muted);
}

.toc-strip a {
    color: var(--fg-muted);
    border-bottom: none;
    margin-right: 1rem;
    white-space: nowrap;
}

.toc-strip a:hover { color: var(--accent); }

.title-rule {
    border: none;
    height: 2px;
    background: var(--fg);
    width: 48px;
    margin: 0 0 1.5rem 0;
}

.tldr {
    background: var(--bg-soft);
    border-left: 2px solid var(--fg);
    padding: 1.1rem 1.4rem;
    margin: 1.5rem 0 2.2rem;
}

.tldr p { margin-bottom: 0.6rem; }
.tldr ul { margin: 0.4rem 0 0; list-style: none; padding-left: 0; }
.tldr li { margin-bottom: 0.55rem; }
.tldr p:last-child, .tldr ul:last-child { margin-bottom: 0; }

.chart { margin: 1.4rem 0 0.4rem; }
figure { margin: 1.4rem 0 0.4rem; }
figure img { width: 100%; border: 1px solid var(--rule); }
figure .chart-caption { margin-top: 0.5rem; }
.chart svg { width: 100%; height: auto; display: block; }
.chart text { font-family: var(--mono); font-size: 11px; fill: var(--fg-muted); }
.chart .bar { fill: var(--fg-muted); }
.chart .bar.highlight { fill: var(--accent); }
.chart .baseline { stroke: var(--rule); stroke-dasharray: 4 3; stroke-width: 1; }
.chart-caption {
    font-size: 0.85rem;
    color: var(--fg-muted);
    margin: 0.3rem 0 1.4rem;
}

blockquote {
    font-style: italic;
    font-size: 1.05rem;
    line-height: 1.65;
    margin: 1.5rem 0;
    padding: 0 0 0 1.5rem;
    border-left: 3px solid var(--accent);
    color: var(--fg-muted);
}

mjx-container[display="true"] {
    overflow-x: auto;
    overflow-y: hidden;
    max-width: 100%;
    padding-bottom: 0.25rem;
}

.status, .date, .author, .creator, .validation { display: none; }

#table-of-contents { font-size: 0.9rem; }
#table-of-contents h2 { font-size: 1rem; }

.org-src-container { margin: 1.2rem 0; }

pre.src, pre.example {
    background: #1e1e1e;
    color: #d4d4d4;
    border: none;
    border-left: 2px solid var(--fg-muted);
    border-radius: 4px;
    padding: 1rem 1.2rem;
    overflow-x: auto;
    font-size: 0.85rem;
    line-height: 1.5;
}

pre.src code, pre.example code {
    background: none;
    border: none;
    padding: 0;
    font-size: inherit;
}

pre.src::before { color: #888; background: inherit; }
pre.src .linenr { color: #777; user-select: none; }

#postamble, #footnotes {
    margin-top: 2.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--rule);
    font-size: 0.8rem;
    color: var(--fg-muted);
}

/*----------------------------------------------------------------------------*
 * Responsive                                                                  *
 *----------------------------------------------------------------------------*/

@media (max-width: 720px) {
    html { font-size: 16px; }
    .hero { padding: 3.5rem 0 3rem; }
    .section { margin-top: 3.5rem; }
    .site-nav { gap: 1rem; font-size: 0.75rem; }
    .writing-grid { grid-template-columns: 1fr; }
}