/* === fonts === */
@font-face {
  font-family: "Noto Sans";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("/fonts/noto-sans-latin-400-normal.woff2") format("woff2");
}

@font-face {
  font-family: "Noto Sans";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("/fonts/noto-sans-latin-600-normal.woff2") format("woff2");
}

@font-face {
  font-family: "Noto Sans";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("/fonts/noto-sans-latin-700-normal.woff2") format("woff2");
}

@font-face {
  font-family: "JetBrains Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("/fonts/jetbrains-mono-latin-400-normal.woff2") format("woff2");
}

@font-face {
  font-family: "JetBrains Mono";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("/fonts/jetbrains-mono-latin-500-normal.woff2") format("woff2");
}

/* === tokens === */
:root {
  color-scheme: light dark;

  --color-bg: #fafaf8;
  --color-text: #2a2c2b;
  --color-text-strong: #111312;
  --color-text-soft: #55595a;
  --color-muted: #6b6f70;
  --color-label: #6b6f70;
  --color-value: #1d1f1e;
  --color-chip-text: #232524;
  --color-code-text: #2a2c2b;
  --color-line: rgba(0, 0, 0, 0.1);
  --color-chip-border: rgba(0, 0, 0, 0.18);
  --color-code-bg: rgba(0, 0, 0, 0.055);
  --color-divider: rgba(0, 0, 0, 0.2);
  --color-underline: rgba(0, 0, 0, 0.3);
  --color-accent: #1f7a52;

  --font-sans: "Noto Sans", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;

  --content-width: 640px;
  --gutter: 32px;
  --page-bottom: 96px;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 3rem;
  --space-7: 3.75rem;
  --space-8: 6rem;
  --space-chip: 0.75rem;
  --space-label: 1.25rem;
}

@media (max-width: 560px) {
  :root {
    --gutter: 20px;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #0e0f10;
    --color-text: #d3d4d0;
    --color-text-strong: #f4f4f0;
    --color-text-soft: #a9acab;
    --color-muted: #9a9d9f;
    --color-label: #8a8d8f;
    --color-value: #e4e5e1;
    --color-chip-text: #dcddd9;
    --color-code-text: #d9dad6;
    --color-line: rgba(255, 255, 255, 0.1);
    --color-chip-border: rgba(255, 255, 255, 0.18);
    --color-code-bg: rgba(255, 255, 255, 0.07);
    --color-divider: rgba(255, 255, 255, 0.2);
    --color-underline: rgba(255, 255, 255, 0.3);
    --color-accent: #7dd3a8;
  }
}

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

html {
  -webkit-text-size-adjust: 100%;
  background: var(--color-bg);
}

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
}

h1,
h2,
h3 {
  font-weight: 600;
  line-height: 1.25;
  text-transform: none;
  color: var(--color-text-strong);
}

h1 {
  font-size: 36px;
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  text-wrap: balance;
}

h2 {
  font-size: 1.35rem;
}

h3 {
  font-size: 1.1rem;
}

p {
  margin: 0 0 24px;
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
}

@media (max-width: 560px) {
  h1 {
    font-size: 28px;
  }
}

img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 32px 0;
  border: 1px solid var(--color-line);
  border-radius: 6px;
}

figure {
  margin: 32px 0;
}

figure img {
  margin: 0;
}

figcaption {
  margin-top: 8px;
  font-size: 13.5px;
  color: var(--color-muted);
}

/* Reusable 640px reading column. */
.reading-column {
  max-width: var(--content-width);
  margin-inline: auto;
}

.meta {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-muted);
}

/* Prose links: accent, 1px underline, 3px offset (underline uses the text colour). */
a {
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color 150ms ease;
}

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

/* List-title links: strong text, no underline until hover or focus. */
.project-item h3 a,
.article-item h2 a,
.article-item h4 a,
.article-featured h3 a {
  color: var(--color-text-strong);
  text-decoration: none;
}

.project-item h3 a:hover,
.project-item h3 a:focus-visible,
.article-item h2 a:hover,
.article-item h2 a:focus-visible,
.article-item h4 a:hover,
.article-item h4 a:focus-visible,
.article-featured h3 a:hover,
.article-featured h3 a:focus-visible {
  color: var(--color-accent);
  text-decoration: underline;
}

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

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--color-accent);
  text-decoration: underline;
}

@media (prefers-reduced-motion: reduce) {
  a,
  .skip-link {
    transition: none;
  }
}

.site-header,
.site-footer {
  padding: 0 var(--gutter);
  box-sizing: content-box;
  max-width: var(--content-width);
  margin-inline: auto;
}

.site-footer {
  padding: 1rem var(--gutter) calc(1rem + var(--page-bottom));
}

.site-nav {
  display: flex;
  gap: 28px;
  padding: 20px 0 18px;
  font-size: 14px;
  border-bottom: 1px solid var(--color-line);
}

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

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--color-accent);
}

/* === layout === */
/*
 * Shared page shell. 768px is the single layout breakpoint used across the
 * file: `@media (min-width: 768px) { ... }` for desktop-only rules, mirrored
 * where needed by `@media (max-width: 767.98px) { ... }` for the matching
 * mobile override.
 */
main {
  padding: 0 var(--gutter);
  box-sizing: content-box;
  max-width: var(--content-width);
  margin-inline: auto;
}

/* The home page's two-column layout needs more than the reading column. */
body.home main,
body.home .site-header,
body.home .site-footer {
  max-width: 1000px;
}

/* === components === */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  padding: var(--space-2) var(--space-3);
  background: var(--color-bg);
  color: var(--color-text);
  z-index: 10;
  transition: top 150ms ease;
}

.skip-link:focus {
  top: 0;
}

.site-nav a[aria-current="page"] {
  font-weight: 600;
}

.site-footer p {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-muted);
  text-align: left;
}

.site-footer a {
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
}

.site-footer--bordered {
  border-top: 1px solid var(--color-line);
}

/* === pages === */
.home-bio {
  margin: 2rem 0 1rem;
}

.home-bio h1 {
  margin: 0 0 0.5rem;
}

.home-bio p {
  color: var(--color-text-soft);
}

.home-columns {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  min-height: 0;
}

@media (min-width: 768px) {
  .home-columns {
    flex-direction: row;
    gap: 2rem;
  }

  .home-columns > * {
    flex: 1;
    min-width: 0;
  }
}

.home-catalog {
  min-height: 0;
}

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

.project-item {
  margin-bottom: 1.25rem;
}

.project-item h3 {
  margin: 0 0 0.25rem;
  font-size: 1.1rem;
}

.project-item p {
  margin: 0;
  color: var(--color-text-soft);
}

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

.article-item,
.article-featured {
  margin-bottom: 0.75rem;
}

.article-item h4,
.article-featured h3 {
  display: inline;
  margin: 0;
  font-size: 1rem;
  font-weight: 400;
}

.article-item h2 {
  margin: 0 0 0.25rem;
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.3;
}

.blog-list h1 {
  margin: 2rem 0 1.5rem;
}

.blog-list .article-item {
  margin-bottom: 1.75rem;
}

.blog-list .article-item .article-meta {
  display: block;
  margin: 0;
}

.article-item .article-meta,
.article-featured .article-meta {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-muted);
  display: inline;
  margin: 0 0.5em 0 0;
}

.article-item p:not(.article-meta),
.article-featured p:not(.article-meta) {
  margin: 0.25rem 0 0;
  color: var(--color-text-soft);
}

.blog-list,
.blog-single,
.methodology {
  max-width: var(--content-width);
  margin-inline: auto;
}

.not-found {
  max-width: var(--content-width);
  margin: 3rem auto;
}

.not-found h1 {
  margin: 0 0 var(--space-4);
}

.not-found p,
.not-found a {
  color: var(--color-accent);
}

.blog-single h1,
.methodology h1 {
  margin: var(--space-5) 0 var(--space-3);
}

.blog-single > .article-meta {
  margin: 0 0 var(--space-3);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-muted);
}

.blog-single .article-content,
.methodology {
  color: var(--color-text);
}

.tag-list {
  list-style: none;
  margin: 0.5rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75em;
}

.tag-list li {
  display: inline;
}

.tag-list a {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-muted);
  text-decoration: none;
}

.tag-list a:hover,
.tag-list a:focus-visible {
  color: var(--color-accent);
  text-decoration: underline;
}

.tag-list a::before {
  content: "#";
}

code {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-code-text);
  background: var(--color-code-bg);
  border-radius: 4px;
  padding: 1px 6px;
}

pre {
  background: var(--color-code-bg);
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 16px;
  border-radius: 6px;
  overflow-x: auto;
}

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

.project-detail {
  max-width: var(--content-width);
  margin-inline: auto;
}

.project-detail h1 {
  margin: var(--space-7) 0 var(--space-5);
  font-size: 52px;
}

@media (max-width: 560px) {
  .project-detail h1 {
    font-size: 40px;
  }
}

.project-meta {
  display: grid;
  grid-template-columns: 96px 1fr;
  margin: 0;
  border-top: 1px solid var(--color-line);
}

.project-meta dt,
.project-meta dd {
  margin: 0;
  padding: 15px 0;
  border-bottom: 1px solid var(--color-line);
}

.project-meta dt {
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.7;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-label);
}

.project-meta dd {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--color-value);
}

.project-meta dd a {
  text-decoration-color: var(--color-underline);
  text-underline-offset: 4px;
}

@media (max-width: 560px) {
  .project-meta {
    grid-template-columns: 80px 1fr;
  }
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.chips li {
  padding: 2px 10px;
  border: 1px solid var(--color-chip-border);
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--color-chip-text);
}

.project-highlights {
  margin: 40px 0 0;
  padding: 0;
  list-style: none;
}

.project-highlights li {
  display: flex;
  gap: 14px;
  margin-bottom: 16px;
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--color-text-soft);
}

.project-highlights .marker {
  flex: 0 0 14px;
  color: var(--color-accent);
}

.project-highlights strong {
  font-weight: 600;
  color: var(--color-text-strong);
}

.project-status {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 22px 0 0;
  font-size: 13.5px;
  color: var(--color-text-soft);
}

.status-dot {
  flex: 0 0 7px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-accent);
}

.project-description {
  margin-top: var(--space-7);
}

.project-description > p:last-child {
  margin-bottom: 0;
  font-size: 14.5px;
  color: var(--color-muted);
}

.project-attribution,
.project-articles {
  margin-top: var(--space-4);
}

.project-articles ul {
  padding-left: 1.25rem;
}