/*
 * The documentation site's own stylesheet. The palette and the syntax colours
 * come from the deck theme's real files (tokens.css, highlight.css), so the
 * site is coloured by the same tokens a deck is; everything here is the part a
 * deck has no use for — a page you scroll, a sidebar, and prose measured in
 * `rem` rather than `cqw`, because a screen is not a projector.
 */

/*
 * tokens.css swaps to paper on `html.light`, which is how a deck asks for it.
 * Documentation has no frontmatter to ask with, so it follows the reader's
 * system setting instead, off the same raw palette.
 */
@media (prefers-color-scheme: light) {
  :root {
    --slide-color-bg: var(--slide-paper-bg);
    --slide-color-panel: var(--slide-paper-panel);
    --slide-color-fg: var(--slide-paper-fg);
    --slide-color-muted: var(--slide-paper-muted);
    --slide-color-backdrop: var(--slide-paper-backdrop);

    --slide-rule: rgb(34 26 41 / 0.12);
    --slide-rule-strong: rgb(34 26 41 / 0.16);

    --slide-color-apricot: var(--slide-apricot-base);
    --slide-color-lilac: var(--slide-lilac-base);
    --slide-color-cyan: var(--slide-cyan-base);

    --slide-syn-comment: #6c6274;
    --slide-syn-keyword: #7b4fa0;
    --slide-syn-function: #1f7d86;
    --slide-syn-string: #4a6d2f;
    --slide-syn-number: #a45f27;
    --slide-syn-class: #7a5f12;
    --slide-syn-builtin: #3a5a9c;
    --slide-syn-property: #a1476a;
    --slide-syn-punct: #665d6e;

    color-scheme: light;
  }
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

body {
  margin: 0;
  background: var(--slide-color-bg);
  color: var(--slide-color-fg);
  font-family: var(--slide-font-body);
  font-size: 1.0625rem;
  line-height: var(--slide-lh-body);
  -webkit-text-size-adjust: 100%;
}

a {
  color: var(--slide-color-accent);
  text-underline-offset: 0.15em;
}

a:hover {
  text-decoration-thickness: 2px;
}

.skip {
  position: absolute;
  left: -9999px;
}

.skip:focus {
  left: 1rem;
  top: 1rem;
  z-index: 10;
  padding: 0.5rem 0.9rem;
  background: var(--slide-color-panel);
  border-radius: var(--slide-radius-pill);
}

/* ---- Masthead ----------------------------------------------------------- */

.masthead {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem clamp(1rem, 4vw, 2.5rem);
  background: color-mix(in oklab, var(--slide-color-bg) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--slide-rule);
}

.masthead__name {
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: var(--slide-tracking-tight);
  color: var(--slide-color-fg);
  text-decoration: none;
}

.masthead__name::before {
  content: '';
  display: inline-block;
  width: 0.7rem;
  height: 0.7rem;
  margin-right: 0.5rem;
  border-radius: 2px;
  background: var(--slide-color-accent);
}

.masthead__links {
  display: flex;
  gap: clamp(0.75rem, 3vw, 1.5rem);
  font-size: 0.95rem;
}

.masthead__links a {
  color: var(--slide-color-muted);
  text-decoration: none;
}

.masthead__links a:hover {
  color: var(--slide-color-fg);
}

/* ---- Shell -------------------------------------------------------------- */

.shell {
  display: grid;
  grid-template-columns: 15rem minmax(0, 1fr) 13rem;
  gap: clamp(1.5rem, 4vw, 3.5rem);
  max-width: 84rem;
  margin: 0 auto;
  padding: 2.5rem clamp(1rem, 4vw, 2.5rem) 4rem;
}

@media (max-width: 60rem) {
  .shell {
    grid-template-columns: minmax(0, 1fr);
    padding-top: 1.25rem;
  }

  .toc {
    display: none;
  }
}

/* ---- Sidebar ------------------------------------------------------------ */

/*
 * The same list twice — see build-docs.mjs. A wide screen gets the plain nav,
 * a narrow one the <details>, and neither needs a line of script.
 */
.sidebar {
  align-self: start;
  position: sticky;
  top: 5rem;
  font-size: 0.95rem;
}

.sidebar--narrow {
  display: none;
}

.sidebar__toggle {
  padding: 0.6rem 0.9rem;
  border: 1px solid var(--slide-rule);
  border-radius: var(--slide-radius-code);
  color: var(--slide-color-muted);
  cursor: pointer;
  list-style: none;
}

.sidebar__toggle::-webkit-details-marker {
  display: none;
}

.sidebar__toggle::after {
  content: ' ▾';
}

.sidebar[open] .sidebar__toggle::after {
  content: ' ▴';
}

@media (max-width: 60rem) {
  .sidebar--wide {
    display: none;
  }

  .sidebar--narrow {
    display: block;
    position: static;
    margin-bottom: 1.5rem;
  }

  .sidebar__nav {
    max-height: 50vh;
    padding-top: 1rem;
    overflow-y: auto;
  }
}

.sidebar__section + .sidebar__section {
  margin-top: 1.5rem;
}

.sidebar__title {
  margin: 0 0 0.5rem;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: var(--slide-tracking-kicker);
  color: var(--slide-color-muted);
}

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

.sidebar li a {
  display: block;
  padding: 0.28rem 0.6rem;
  margin-left: -0.6rem;
  border-radius: var(--slide-radius-code);
  color: var(--slide-color-muted);
  text-decoration: none;
}

.sidebar li a:hover {
  color: var(--slide-color-fg);
  background: var(--slide-color-panel);
}

.sidebar li a.active {
  color: var(--slide-color-accent);
  background: var(--slide-color-panel);
}

/* ---- Contents ----------------------------------------------------------- */

.toc {
  align-self: start;
  position: sticky;
  top: 5rem;
  font-size: 0.9rem;
}

.toc__title {
  margin: 0 0 0.5rem;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: var(--slide-tracking-kicker);
  color: var(--slide-color-muted);
}

.toc ul {
  margin: 0;
  padding: 0 0 0 0.8rem;
  list-style: none;
  border-left: 1px solid var(--slide-rule);
}

.toc li a {
  display: block;
  padding: 0.2rem 0;
  color: var(--slide-color-muted);
  text-decoration: none;
}

.toc li a:hover {
  color: var(--slide-color-fg);
}

/* ---- Prose -------------------------------------------------------------- */

.prose {
  max-width: 46rem;
}

.eyebrow {
  margin: 0;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: var(--slide-tracking-kicker);
  color: var(--slide-color-accent);
}

.prose h1 {
  margin: 0.4rem 0 0.6rem;
  font-family: var(--slide-font-heading);
  font-size: clamp(2rem, 5vw, 2.6rem);
  line-height: var(--slide-lh-tight);
  letter-spacing: var(--slide-tracking-tight);
}

.lede {
  margin: 0 0 2.5rem;
  font-size: 1.2rem;
  color: var(--slide-color-muted);
}

.prose h2 {
  margin: 3rem 0 0.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--slide-rule);
  font-size: 1.5rem;
  line-height: var(--slide-lh-heading);
  letter-spacing: var(--slide-tracking-tight);
}

.prose h3 {
  margin: 2.25rem 0 0.6rem;
  font-size: 1.15rem;
  line-height: var(--slide-lh-heading);
}

.prose h4 {
  margin: 1.75rem 0 0.5rem;
  font-size: 1rem;
}

.prose p,
.prose ul,
.prose ol {
  margin: 0 0 1.1rem;
}

.prose li {
  margin-bottom: 0.35rem;
}

.prose strong {
  color: var(--slide-color-fg);
}

.anchor {
  margin-left: 0.4rem;
  color: var(--slide-color-muted);
  text-decoration: none;
  opacity: 0;
  font-weight: 400;
}

h2:hover .anchor,
h3:hover .anchor,
.anchor:focus {
  opacity: 1;
}

.prose blockquote {
  margin: 1.5rem 0;
  padding: 0.1rem 0 0.1rem 1.1rem;
  border-left: 3px solid var(--slide-color-accent);
  color: var(--slide-color-muted);
}

.prose hr {
  margin: 2.5rem 0;
  border: 0;
  border-top: 1px solid var(--slide-rule);
}

.prose img {
  max-width: 100%;
  border-radius: var(--slide-radius-panel);
}

kbd {
  padding: 0.1em 0.4em;
  border: 1px solid var(--slide-rule-strong);
  border-bottom-width: 2px;
  border-radius: var(--slide-radius-code);
  background: var(--slide-color-panel);
  font-family: var(--slide-font-mono);
  font-size: 0.85em;
}

/* ---- Code --------------------------------------------------------------- */

code {
  font-family: var(--slide-font-mono);
  font-size: 0.875em;
}

:not(pre) > code {
  padding: 0.12em 0.35em;
  border-radius: var(--slide-radius-code);
  background: var(--slide-color-panel);
  color: var(--slide-color-fg);
}

.code {
  position: relative;
  margin: 0 0 1.4rem;
  border: 1px solid var(--slide-rule);
  border-radius: var(--slide-radius-panel);
  background: var(--slide-color-panel);
  overflow: hidden;
}

.code__lang {
  position: absolute;
  top: 0;
  right: 0;
  padding: 0.25rem 0.6rem;
  font-family: var(--slide-font-mono);
  font-size: 0.7rem;
  letter-spacing: var(--slide-tracking-mono);
  color: var(--slide-color-muted);
  background: var(--slide-color-bg);
  border-left: 1px solid var(--slide-rule);
  border-bottom: 1px solid var(--slide-rule);
  border-bottom-left-radius: var(--slide-radius-code);
}

.code pre {
  margin: 0;
  padding: 1rem 1.1rem;
  overflow-x: auto;
  line-height: 1.55;
}

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

.table {
  margin: 0 0 1.6rem;
  overflow-x: auto;
  border: 1px solid var(--slide-rule);
  border-radius: var(--slide-radius-panel);
}

.table table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.table th,
.table td {
  padding: 0.6rem 0.9rem;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--slide-rule);
}

.table th {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: var(--slide-tracking-kicker);
  color: var(--slide-color-muted);
  background: var(--slide-color-panel);
}

.table tr:last-child td {
  border-bottom: 0;
}

/* ---- Landing page bits -------------------------------------------------- */

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: 1rem;
  margin: 0 0 2rem;
  padding: 0;
  list-style: none;
}

.cards li {
  margin: 0;
  padding: 1.1rem 1.2rem;
  border: 1px solid var(--slide-rule);
  border-radius: var(--slide-radius-panel);
  background: var(--slide-color-panel);
}

.cards strong {
  display: block;
  margin-bottom: 0.3rem;
}

.cards p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--slide-color-muted);
}

.buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 0 0 2.5rem;
}

.button {
  padding: 0.6rem 1.2rem;
  border: 1px solid var(--slide-rule-strong);
  border-radius: var(--slide-radius-pill);
  color: var(--slide-color-fg);
  text-decoration: none;
}

.button:hover {
  background: var(--slide-color-panel);
}

.button--primary {
  background: var(--slide-color-accent);
  border-color: transparent;
  color: var(--slide-color-accent-contrast);
  font-weight: 600;
}

.button--primary:hover {
  background: var(--slide-color-accent);
  filter: brightness(1.08);
}

/* ---- Pager and footer --------------------------------------------------- */

.pager {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  max-width: 46rem;
  margin-top: 4rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--slide-rule);
}

.pager__link {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  padding: 0.7rem 1rem;
  border: 1px solid var(--slide-rule);
  border-radius: var(--slide-radius-panel);
  text-decoration: none;
  color: var(--slide-color-fg);
}

.pager__link:hover {
  background: var(--slide-color-panel);
}

.pager__link span {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: var(--slide-tracking-kicker);
  color: var(--slide-color-muted);
}

.pager__link--next {
  text-align: right;
}

.footer {
  padding: 2rem clamp(1rem, 4vw, 2.5rem);
  border-top: 1px solid var(--slide-rule);
  font-size: 0.9rem;
  color: var(--slide-color-muted);
}

.footer p {
  max-width: 84rem;
  margin: 0 auto;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}