/* The Deckard guide, in the Replicant theme: the extension's own dark
   ground and faint grid, amber eyebrows, cyan headings and links, and
   monospace titles. The colors are Replicant's tokens from
   src/ui/webview/components.ts. */
:root {
  color-scheme: dark;
  --bg: #050608;
  --panel: #0D1017;
  --panel-raised: #121620;
  --text: #D9E0E4;
  --muted: #7D8792;
  --line: #212936;
  --line-strong: #34445A;
  --cyan: #3ED4E8;
  --cyan-bright: #5FE1F0;
  --green: #66E066;
  --amber: #FFB000;
  --grid-line: rgba(62, 212, 232, .05);
  --font-display: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}
* { box-sizing: border-box; }
html { scroll-padding-top: 16px; }
body {
  margin: 0;
  background-color: var(--bg);
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 24px 24px;
  color: var(--text);
  font: 16px/1.65 var(--font-display);
}
a { color: var(--cyan); text-decoration-color: color-mix(in srgb, var(--cyan) 45%, transparent); text-underline-offset: 3px; }
a:hover, a:focus-visible { color: var(--cyan-bright); text-decoration-color: currentColor; }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; }
.skip-link { position: absolute; left: -9999px; }
.skip-link:focus { left: 16px; top: 16px; z-index: 10; padding: 8px 12px; background: var(--panel); }

/* Header: the lockup, the eyebrow, and the way out to the repository. */
.site-header { display: flex; align-items: center; gap: 20px; max-width: 1180px; margin: 0 auto; padding: 24px 24px 20px; border-bottom: 2px solid var(--line-strong); }
.brand img { display: block; width: 84px; height: 84px; }
.brand-text { flex: 1; min-width: 0; }
.eyebrow { margin: 0; color: var(--amber); font: 12px var(--font-mono); letter-spacing: .15em; text-transform: uppercase; }
.tagline { margin: 4px 0 0; color: var(--muted); }
.site-links { display: flex; flex-wrap: wrap; gap: 8px 18px; font: 13px var(--font-mono); }
.site-links a { color: var(--text); text-decoration: none; border-bottom: 1px solid transparent; }
.site-links a:hover, .site-links a:focus-visible { color: var(--amber); border-bottom-color: var(--amber); }

/* The topics down the side, the page beside them. */
.layout { display: grid; grid-template-columns: 230px minmax(0, 1fr); gap: 40px; max-width: 1180px; margin: 0 auto; padding: 28px 24px 56px; }
.toc { position: sticky; top: 20px; align-self: start; max-height: calc(100vh - 40px); overflow-y: auto; padding: 14px; border: 1px solid var(--line); background: var(--panel); font-size: 14px; }
.toc ul { margin: 0 0 6px; padding: 0; list-style: none; }
.toc a { display: block; padding: 5px 8px; border-left: 2px solid transparent; color: var(--muted); text-decoration: none; }
.toc a:hover, .toc a:focus-visible { border-left-color: var(--amber); background: var(--panel-raised); color: var(--text); }
.toc a.is-current { border-left-color: var(--amber); color: var(--text); }
.toc-home { margin-bottom: 4px; font-family: var(--font-mono); font-size: 13px; }
.toc-group { margin: 14px 0 4px; color: var(--green); font: 11px var(--font-mono); letter-spacing: .12em; text-transform: uppercase; }

/* The page. */
.content { min-width: 0; max-width: 820px; }
.content h1, .content h2, .content h3, .content h4 { font-family: var(--font-mono); line-height: 1.25; scroll-margin-top: 16px; }
.content h1 { margin: 0 0 20px; font-size: 28px; font-weight: 700; text-transform: uppercase; letter-spacing: .02em; }
.content h2 { margin: 40px 0 12px; padding-bottom: 8px; border-bottom: 1px solid var(--line); color: var(--cyan); font-size: 20px; }
.content h3 { margin: 28px 0 8px; font-size: 16px; }
.content h4 { margin: 20px 0 6px; color: var(--muted); font-size: 14px; }
.content p, .content ul, .content ol { margin: 0 0 14px; }
.content li + li { margin-top: 4px; }
.content strong { color: #F2F5F7; }
.content hr { margin: 36px 0 16px; border: 0; border-top: 1px solid var(--line); }
.content img { max-width: 100%; height: auto; border: 1px solid var(--line); }
.content blockquote { margin: 0 0 14px; padding: 8px 14px; border-left: 3px solid var(--amber); background: var(--panel-raised); color: var(--text); }
code { padding: 1px 5px; border: 1px solid var(--line); background: var(--panel-raised); font: .88em var(--font-mono); overflow-wrap: anywhere; }
pre { margin: 0 0 16px; padding: 14px 16px; overflow-x: auto; border: 1px solid var(--line); border-left: 3px solid var(--cyan); background: var(--panel); line-height: 1.5; }
pre code { padding: 0; border: 0; background: none; font-size: 13px; overflow-wrap: normal; }
.highlight { background: none; }
table { display: block; width: 100%; margin: 0 0 18px; overflow-x: auto; border-collapse: collapse; font-size: 14px; }
th, td { padding: 8px 12px 8px 0; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { color: var(--cyan); font: 12px var(--font-mono); letter-spacing: .06em; text-transform: uppercase; }
tbody tr:hover { background: var(--panel); }

/* A screenshot, full screen, on a click. */
.content img { cursor: zoom-in; }
.lightbox { position: fixed; inset: 0; z-index: 20; display: grid; place-items: center; padding: 24px; background: rgba(5, 6, 8, .92); cursor: zoom-out; }
.lightbox[hidden] { display: none; }
.lightbox img { max-width: 100%; max-height: 100%; border: 1px solid var(--line-strong); box-shadow: 0 12px 40px rgba(0, 0, 0, .6); }
.lightbox-close { position: absolute; top: 12px; right: 16px; width: 36px; height: 36px; border: 1px solid var(--line-strong); background: var(--panel); color: var(--text); font-size: 22px; line-height: 1; cursor: pointer; }
.lightbox-close:hover, .lightbox-close:focus-visible { border-color: var(--amber); color: var(--amber); }

.site-footer { max-width: 1180px; margin: 0 auto; padding: 18px 24px 36px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }

@media (max-width: 860px) {
  .site-header { flex-wrap: wrap; padding: 18px 16px 14px; }
  .brand img { width: 64px; height: 64px; }
  .layout { grid-template-columns: 1fr; gap: 20px; padding: 18px 16px 40px; }
  .toc { position: static; max-height: none; }
  .content h1 { font-size: 24px; }
}
@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; } }