/* condact.xyz - one stylesheet, no build step. */

:root {
  --bg: #121316;
  --bg-raised: #1a1c21;
  --bg-inset: #0c0d0f;
  --line: #2a2d34;
  --line-strong: #3a3e47;
  --text: #d4d7dd;
  --text-muted: #8a909b;
  --text-strong: #f3f4f6;
  --accent: #e0a458;
  --accent-strong: #f0bd74;
  --accent-ink: #1a1408;
  --font-sans: "Segoe UI", "Helvetica Neue", Arial, system-ui, sans-serif;
  --font-mono: "Cascadia Code", "JetBrains Mono", Consolas, "DejaVu Sans Mono", monospace;
  --measure: 108ch;
  --gap: 1.25rem;

  --code-comment: #6c727d;
  --code-control: #e0a458;
  --code-keyword: #8fb6e6;
  --code-string: #a9c98d;
  --code-number: #d6a8d6;
  --code-symbol: #e6c98f;
  --code-function: #7fc4c4;
  --code-constant: #c9a0dc;
  --code-punctuation: #8a909b;
}

* { box-sizing: border-box; }
html { color-scheme: dark; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.6;
}
* , *::before, *::after { transition: none; animation: none; }

a { color: var(--accent); text-decoration: none; }
a:hover, a:focus { color: var(--accent-strong); text-decoration: underline; }
a:focus-visible { outline: 2px solid var(--accent-strong); outline-offset: 2px; }

h1, h2, h3, h4 { color: var(--text-strong); line-height: 1.2; margin: 1.6em 0 0.5em; font-weight: 600; }
h1 { font-size: 2rem; margin-top: 0; }
h2 { font-size: 1.4rem; }
h3 { font-size: 1.15rem; }
p, ul, ol, table, figure, pre { margin: 0 0 1em; }
hr { border: 0; border-top: 1px solid var(--line); margin: 2em 0; }
img { max-width: 100%; height: auto; }
table { border-collapse: collapse; width: 100%; }
th, td { text-align: left; padding: 0.5em 0.75em; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--text-muted); font-weight: 600; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.04em; }

/* Code */
code, kbd, pre { font-family: var(--font-mono); font-size: 0.92em; }
:not(pre) > code { background: var(--bg-raised); border: 1px solid var(--line); border-radius: 3px; padding: 0.1em 0.35em; }
pre {
  background: var(--bg-inset);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 1em 1.25em;
  overflow-x: auto;
  line-height: 1.5;
  tab-size: 8;
}
pre code { background: none; border: 0; padding: 0; font-size: 0.9rem; }

.code-block { position: relative; margin: 0 0 1em; }
.code-block > pre { margin: 0; padding-right: 3.25em; }
.copy-button {
  position: absolute;
  top: 0.5em;
  right: 0.5em;
  width: 2em;
  height: 2em;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-raised);
  border: 1px solid var(--line-strong);
  border-radius: 3px;
  color: var(--text-muted);
  cursor: pointer;
}
.copy-button svg { fill: currentColor; }
.copy-button:hover, .copy-button:focus-visible { color: var(--accent-strong); border-color: var(--accent); }
.copy-button.is-done { color: var(--code-string); border-color: var(--code-string); }
.visually-hidden { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }

.token.comment { color: var(--code-comment); font-style: italic; }
.token.string { color: var(--code-string); }
.token.escape { color: var(--code-symbol); }
.token.number, .token.entry-id, .token.line-number { color: var(--code-number); }
.token.condition, .token.section, .token.preprocessor, .token.directive { color: var(--code-control); }
.token.action, .token.keyword, .token.mnemonic { color: var(--code-keyword); }
.token.function, .token.dot-command { color: var(--code-function); }
.token.vocab, .token.register, .token.variable, .token.indirection, .token.label { color: var(--code-symbol); }
.token.reserved, .token.word-class { color: var(--code-constant); }
.token.entry-marker, .token.operator, .token.punctuation { color: var(--code-punctuation); }
.token.entry-marker { font-weight: 700; }
.token.vocab-row, .token.entry, .token.entry-bare { color: inherit; }

/* Header and footer */
.site-header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 2rem;
  padding: 1rem var(--gap);
  border-bottom: 1px solid var(--line);
  background: var(--bg-raised);
}
.site-name { font-weight: 700; color: var(--text-strong); font-size: 1.1rem; letter-spacing: 0.02em; }
.site-name:hover { text-decoration: none; color: var(--accent-strong); }
.site-nav-list { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.25rem 1.25rem; }
.site-nav-list a { color: var(--text-muted); }
.site-nav-list a:hover, .site-nav-list a[aria-current], .site-nav-list .active a { color: var(--text-strong); text-decoration: none; }
.site-nav-list a[aria-current], .site-nav-list .active a { border-bottom: 2px solid var(--accent); }
.site-footer { border-top: 1px solid var(--line); padding: 1.5rem var(--gap); color: var(--text-muted); font-size: 0.9rem; margin-top: 4rem; }

/* Layouts */
.layout { padding: 2rem var(--gap); max-width: 80rem; margin: 0 auto; }
.layout-single { max-width: calc(var(--measure) + 2 * var(--gap)); }
.layout-docs { display: grid; grid-template-columns: 15rem minmax(0, 1fr) auto; gap: 2.5rem; }
.layout-docs .content { max-width: var(--measure); min-width: 0; }
@media (max-width: 64rem) { .layout-docs { grid-template-columns: 14rem minmax(0, 1fr); } .layout-docs .toc { display: none; } }
@media (max-width: 44rem) { .layout-docs { grid-template-columns: minmax(0, 1fr); } .sidebar { order: 2; } }

.article > h1:first-child { margin-top: 0; }
.article img { border: 1px solid var(--line); }

/* Breadcrumbs */
.crumbs ol { list-style: none; margin: 0 0 1.5rem; padding: 0; display: flex; flex-wrap: wrap; gap: 0.25rem; font-size: 0.85rem; color: var(--text-muted); }
.crumbs li + li::before { content: "/"; margin: 0 0.5rem; color: var(--line-strong); }
.crumbs a { color: var(--text-muted); }

/* Software page */
.software-header { border-bottom: 1px solid var(--line); padding-bottom: 1rem; margin-bottom: 1.5rem; }
.status {
  display: inline-block;
  font-size: 0.72rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.15em 0.5em;
  border: 1px solid var(--line-strong);
  border-radius: 3px;
  color: var(--text-muted);
  vertical-align: middle;
}
.status-in-development { color: var(--code-keyword); border-color: var(--code-keyword); }
.status-released { color: var(--code-string); border-color: var(--code-string); }
.status-maintained { color: var(--accent); border-color: var(--accent); }
.status-archived { color: var(--text-muted); }
.tagline { font-size: 1.2rem; color: var(--text-muted); margin: 0.5rem 0 0; }
.repo { font-size: 0.9rem; margin: 0.5rem 0 0; }

.release-current {
  border: 1px solid var(--accent);
  border-radius: 4px;
  padding: 1rem 1.25rem;
  margin: 0 0 2rem;
  background: var(--bg-raised);
}
.release-current-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.25rem 1.5rem;
  align-items: center;
}
.release-current-row + .release-current-row { border-top: 1px solid var(--line); margin-top: 0.75rem; padding-top: 0.75rem; }
.release-current-label { margin: 0 0 0.25rem; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--accent); }
.release-current-version { margin: 0; font-family: var(--font-mono); font-size: 1.3rem; color: var(--text-strong); }
.release-date, .release-size, .release-count { color: var(--text-muted); font-size: 0.85rem; font-family: var(--font-mono); margin-left: 0.5em; }
.release-platforms { margin: 0; grid-column: 1; color: var(--text-muted); font-size: 0.9rem; }
.release-link {
  display: inline-block;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 600;
  padding: 0.5em 1.1em;
  border-radius: 3px;
}
.release-current-row > .release-link, .release-current-row > .release-download { grid-column: 2; grid-row: 1 / span 2; }
.release-link:hover, .release-link:focus { background: var(--accent-strong); color: var(--accent-ink); text-decoration: none; }
.release-table .release-link { background: none; color: var(--accent); padding: 0; font-weight: 400; }
.release-table .release-link:hover { color: var(--accent-strong); text-decoration: underline; }
.release-version { font-family: var(--font-mono); color: var(--text-strong); }
.release-notes td { color: var(--text-muted); font-size: 0.9rem; padding-top: 0; border-bottom-color: var(--line); }

.screenshot-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(16rem, 1fr)); gap: 1rem; }
.screenshot { margin: 0; }
.screenshot img { border: 1px solid var(--line); display: block; width: 100%; }
.screenshot figcaption { font-size: 0.85rem; color: var(--text-muted); margin-top: 0.4em; }
.screenshot-open { display: block; width: 100%; padding: 0; margin: 0; border: 0; background: none; cursor: zoom-in; }
.screenshot-open:hover img, .screenshot-open:focus-visible img { border-color: var(--accent); }
.screenshot-open:focus-visible { outline: 2px solid var(--accent-strong); outline-offset: 2px; }

/* Lightbox */
.lightbox {
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  padding: 1rem;
  max-width: calc(100vw - 2rem);
  max-height: calc(100vh - 2rem);
  width: auto;
  box-sizing: border-box;
}
.lightbox::backdrop { background: rgba(0, 0, 0, 0.8); }
.lightbox img { display: block; max-width: calc(100vw - 4rem); max-height: calc(100vh - 8rem); width: auto; height: auto; margin: 0 auto; border: 1px solid var(--line); }
.lightbox-caption { margin: 0.75rem 0 0; text-align: center; color: var(--text-muted); font-size: 0.9rem; }
.lightbox-close {
  display: block;
  margin: 0 0 0.75rem auto;
  background: var(--bg-raised);
  color: var(--text);
  border: 1px solid var(--line-strong);
  border-radius: 3px;
  padding: 0.3em 0.8em;
  font: inherit;
  cursor: pointer;
}
.lightbox-close:hover, .lightbox-close:focus-visible { color: var(--accent-strong); border-color: var(--accent); }

.section-links { display: grid; grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr)); gap: 1rem; margin-top: 2rem; }
.section-link, .project-card {
  display: block;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 1rem 1.25rem;
  background: var(--bg-raised);
  color: var(--text);
}
.section-link:hover, .project-card:hover { border-color: var(--accent); text-decoration: none; color: var(--text); }
.section-link-title, .project-card-title { display: block; color: var(--text-strong); font-weight: 600; font-size: 1.1rem; }
.section-link-desc, .project-card-tagline { display: block; color: var(--text-muted); font-size: 0.9rem; margin-top: 0.25em; }
.project-card .status { margin: 0.4em 0; }
.project-card-image {
  display: block;
  width: calc(100% + 2.5rem);
  max-width: none;
  margin: -1rem -1.25rem 0.75rem;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-bottom: 1px solid var(--line);
  border-radius: 4px 4px 0 0;
}

/* Home */
.home-intro { max-width: var(--measure); margin-bottom: 2.5rem; }
.project-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(17rem, 1fr)); gap: 1rem; }

/* Section navigation */
.section-nav { font-size: 0.92rem; position: sticky; top: 1rem; }
.section-nav-project { margin: 0; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.06em; }
.section-nav-project a { color: var(--text-muted); }
.section-nav-index { margin: 0 0 0.75rem; font-weight: 600; }
.section-nav-index a { color: var(--text-strong); }
.side-nav, .side-nav ul { list-style: none; margin: 0; padding: 0; }
.side-nav ul { padding-left: 0.9rem; border-left: 1px solid var(--line); margin-left: 0.25rem; }
.side-nav li { margin: 0.15rem 0; }
.side-nav a { color: var(--text-muted); display: block; padding: 0.15em 0; }
.side-nav a:hover { color: var(--text-strong); text-decoration: none; }
.side-nav a[aria-current] { color: var(--accent); }
.side-nav .active > a { color: var(--text-strong); }

/* On this page */
.toc { font-size: 0.85rem; position: sticky; top: 1rem; align-self: start; width: 13rem; }
.toc-title { margin: 0 0 0.5rem; text-transform: uppercase; letter-spacing: 0.06em; font-size: 0.72rem; color: var(--text-muted); }
.toc ul { list-style: none; margin: 0; padding: 0; border-left: 1px solid var(--line); }
.toc a { display: block; padding: 0.2em 0.75rem; color: var(--text-muted); }
.toc a:hover { color: var(--text-strong); text-decoration: none; }

/* Docs and tutorial lists */
.doc-list, .tutorial-list { padding-left: 1.25rem; }
.doc-list li, .tutorial-list li { margin: 0.4rem 0; }
.row-summary { color: var(--text-muted); display: block; font-size: 0.92rem; }
.difficulty { font-family: var(--font-mono); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.06em; margin-left: 0.5em; color: var(--text-muted); }
.difficulty-beginner { color: var(--code-string); }
.difficulty-intermediate { color: var(--accent); }
.difficulty-advanced { color: var(--code-number); }
.hub-project + .hub-project { margin-top: 2.5rem; }

/* Previous and next */
.neighbors { display: flex; justify-content: space-between; gap: 1rem; margin-top: 3rem; border-top: 1px solid var(--line); padding-top: 1rem; }
.neighbor { display: block; color: var(--text); max-width: 48%; }
.neighbor:hover { text-decoration: none; }
.neighbor-next { margin-left: auto; text-align: right; }
.neighbor-label { display: block; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-muted); }
.neighbor-title { color: var(--accent); }
.neighbor:hover .neighbor-title { color: var(--accent-strong); text-decoration: underline; }

/* Resources page */
.resource-list { list-style: none; padding: 0; }
.resource-list li { padding: 0.5rem 0; border-bottom: 1px solid var(--line); }