/* d6 documentation site. Same palette and type as getdiamond.codes
   (dark-only by design, like the homepage). */

:root {
  --bg: #090c14;
  --bg-raised: #0e1320;
  --bg-card: #121729;
  --border: #232a42;
  --border-soft: #1a2036;
  --text: #eef1fa;
  --text-dim: #9aa3bd;
  --text-faint: #8890ac;
  --blue: #3b82f6;
  --blue-bright: #5b9dff;
  --cyan: #22d3ee;
  --indigo: #4f46e5;
  --gradient: linear-gradient(135deg, var(--indigo) 0%, var(--blue) 55%, var(--cyan) 100%);
  --tok-kw: #7aa2ff;
  --tok-str: #7ee0c3;
  --tok-num: #f0b86e;
  --tok-comment: #8b95b8;
  --tok-fn: #6bc6ff;
  --tok-const: #e0a8ff;
  --tok-ivar: #ffb4d1;
  --topbar: 56px;
  --radius: 10px;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html { scroll-padding-top: calc(var(--topbar) + 16px); }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* No ligatures: `=>` in an example must look like what you type. */
code, pre { font-family: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', Menlo, Consolas, monospace; font-variant-ligatures: none; }

a { color: var(--blue-bright); text-decoration: none; }
a:hover { text-decoration: underline; }

.skip-link { position: absolute; left: -9999px; top: 0; z-index: 100; background: var(--blue); color: #fff; padding: 8px 14px; }
.skip-link:focus { left: 12px; top: 12px; }

/* ---- Top bar ---- */

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  height: var(--topbar);
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 0 20px;
  background: rgba(9, 12, 20, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-soft);
}

.brand { color: var(--text); font-weight: 600; display: flex; align-items: center; gap: 8px; }
.brand:hover { text-decoration: none; }
.brand-mark {
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-size: 20px;
}

.top-links { margin-left: auto; display: flex; gap: 20px; }
.top-links a { color: var(--text-dim); font-size: 14px; }
.top-links a:hover { color: var(--text); text-decoration: none; }

.nav-toggle {
  display: none;
  width: 36px;
  height: 36px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: transparent;
  cursor: pointer;
  position: relative;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  position: absolute;
  left: 9px;
  width: 16px;
  height: 2px;
  background: var(--text-dim);
  content: '';
}
.nav-toggle span { top: 16px; }
.nav-toggle span::before { top: -5px; left: 0; }
.nav-toggle span::after { top: 5px; left: 0; }

/* ---- Three columns: sidebar, page, on-this-page ---- */

.shell {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr) 220px;
  max-width: 1400px;
  margin: 0 auto;
}

.sidebar {
  position: sticky;
  top: var(--topbar);
  height: calc(100vh - var(--topbar));
  overflow-y: auto;
  padding: 24px 16px 40px 20px;
  border-right: 1px solid var(--border-soft);
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.nav-section + .nav-section { margin-top: 22px; }
.nav-section h2 {
  margin: 0 0 6px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-faint);
}
.nav-section ul { list-style: none; margin: 0; padding: 0; }
.nav-section a {
  display: block;
  padding: 4px 10px;
  border-radius: 6px;
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1.45;
}
.nav-section a:hover { background: var(--bg-card); color: var(--text); text-decoration: none; }
.nav-section a.current { background: var(--bg-card); color: var(--text); box-shadow: inset 2px 0 0 var(--cyan); }

.content { min-width: 0; padding: 40px 48px 80px; }

.toc {
  position: sticky;
  top: var(--topbar);
  align-self: start;
  max-height: calc(100vh - var(--topbar));
  overflow-y: auto;
  padding: 40px 20px 40px 8px;
}
.toc h2 { margin: 0 0 8px; font-size: 12px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-faint); }
.toc ul { list-style: none; margin: 0; padding: 0; }
.toc li { margin: 0; }
.toc a { display: block; padding: 3px 0; font-size: 13px; line-height: 1.4; color: var(--text-dim); }
.toc a:hover { color: var(--text); text-decoration: none; }
.toc .toc-3 a { padding-left: 12px; }

/* ---- Page text ---- */

.prose { max-width: 760px; }
.prose h1 { font-size: 38px; line-height: 1.15; letter-spacing: -0.02em; margin: 0 0 20px; }
.prose h2 { font-size: 26px; line-height: 1.25; letter-spacing: -0.01em; margin: 48px 0 14px; padding-top: 8px; border-top: 1px solid var(--border-soft); }
.prose h3 { font-size: 20px; margin: 34px 0 10px; }
.prose h4, .prose h5, .prose h6 { font-size: 16px; margin: 26px 0 8px; }
.prose h1 a.anchor, .prose h2 a.anchor, .prose h3 a.anchor, .prose h4 a.anchor { color: inherit; }
.prose a.anchor:hover { text-decoration: none; }
.prose a.anchor:hover::after { content: ' #'; color: var(--text-faint); }
.prose p, .prose ul, .prose ol { margin: 0 0 16px; }
.prose ul, .prose ol { padding-left: 24px; }
.prose li { margin: 4px 0; }
.prose li > ul, .prose li > ol { margin: 6px 0 0; }
.prose li > p { margin: 0 0 8px; }
.prose strong { color: var(--text); font-weight: 600; }
.prose hr { border: 0; border-top: 1px solid var(--border); margin: 32px 0; }
.prose blockquote { margin: 0 0 16px; padding: 4px 18px; border-left: 3px solid var(--blue); color: var(--text-dim); }

.prose :not(pre) > code {
  font-size: 0.86em;
  padding: 2px 6px;
  border-radius: 5px;
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  color: #cfd8f3;
  overflow-wrap: anywhere;
}

.prose pre {
  margin: 0 0 18px;
  padding: 16px 18px;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow-x: auto;
  font-size: 13.5px;
  line-height: 1.6;
}
.prose pre code { color: #dbe2f6; }

.tok-kw { color: var(--tok-kw); }
.tok-str { color: var(--tok-str); }
.tok-num { color: var(--tok-num); }
.tok-comment { color: var(--tok-comment); font-style: italic; }
.tok-fn { color: var(--tok-fn); }
.tok-const { color: var(--tok-const); }
.tok-ivar { color: var(--tok-ivar); }
.tok-sym { color: var(--tok-const); }

.table-wrap { overflow-x: auto; margin: 0 0 18px; border: 1px solid var(--border); border-radius: var(--radius); }
.prose pre, .table-wrap, .toc { scrollbar-width: thin; scrollbar-color: var(--border) transparent; }
.prose table { border-collapse: collapse; width: 100%; font-size: 14px; }
.prose th, .prose td { padding: 8px 12px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--border-soft); }
.prose th { background: var(--bg-raised); font-weight: 600; }
.prose tr:last-child td { border-bottom: 0; }

/* ---- Previous / next and edit link ---- */

.pager { max-width: 760px; display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 56px; }
.pager a {
  display: block;
  padding: 14px 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-weight: 500;
}
.pager a:hover { border-color: var(--blue); text-decoration: none; }
.pager a span { display: block; font-size: 12px; color: var(--text-faint); font-weight: 400; margin-bottom: 2px; }
.pager-next { text-align: right; grid-column: 2; }
.edit { max-width: 760px; margin-top: 24px; font-size: 14px; }
.edit a { color: var(--text-faint); }

/* ---- Narrower screens ---- */

@media (max-width: 1180px) {
  .shell { grid-template-columns: 240px minmax(0, 1fr); }
  .toc { display: none; }
}

@media (max-width: 820px) {
  .shell { display: block; }
  .nav-toggle { display: inline-block; }
  .sidebar {
    position: fixed;
    top: var(--topbar);
    left: 0;
    bottom: 0;
    width: min(300px, 85vw);
    height: auto;
    z-index: 15;
    background: var(--bg);
    transform: translateX(-100%);
    transition: transform 0.2s ease;
  }
  body.nav-open .sidebar { transform: none; box-shadow: 0 0 40px rgba(0, 0, 0, 0.6); }
  .content { padding: 28px 16px 64px; }
  .prose h1 { font-size: 30px; }
  .prose h2 { font-size: 22px; }
  .pager { grid-template-columns: 1fr; }
  .pager-next { grid-column: 1; }
  .top-links { gap: 14px; }
}

/* ---- Run buttons on guide examples ---- */

.runnable { position: relative; margin: 0 0 18px; }
.runnable > pre { margin: 0; }
.run-button {
  position: absolute;
  top: 10px;
  right: 10px;
  padding: 4px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-card);
  color: var(--text-dim);
  font: 500 12px 'Inter', sans-serif;
  cursor: pointer;
}
.run-button:hover:not(:disabled) { color: var(--text); border-color: var(--blue); }
.run-button:disabled { cursor: progress; opacity: 0.8; }
.prose pre.run-output {
  margin: -1px 0 0;
  border-top-left-radius: 0;
  border-top-right-radius: 0;
  background: #070a11;
  color: var(--text-dim);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}
.prose pre.run-output::before {
  content: 'Output';
  display: block;
  margin-bottom: 6px;
  font: 600 11px 'Inter', sans-serif;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-faint);
}
.prose pre.run-output.run-error { color: #ffb4b4; }
.runnable > pre:first-child:has(+ .run-button + .run-output:not([hidden])) {
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
}