/* moonyaml — the site's whole design.
 *
 * One accent, one rail, and a document that hangs off it: the page is laid out
 * the way a YAML document is, with a rule down the left and the content indented
 * past it. Light is paper and ink; dark is the same document at night.
 */

:root {
  --paper: #fbfaf7;
  --paper-raised: #ffffff;
  --ink: #1b1a17;
  --ink-soft: #55514a;
  --ink-faint: #8a857c;
  --rail: #e3ded3;
  --accent: #2f5d50;
  --accent-soft: #e7efe9;
  --mark: #b45309;
  --mark-soft: #fdf2e3;
  --code-bg: #f4f1ea;
  --rule: #e8e3d8;
  --shadow: 0 1px 2px rgba(27, 26, 23, 0.04), 0 8px 24px -12px rgba(27, 26, 23, 0.18);
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: "JetBrains Mono", "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #14161a;
    --paper-raised: #1a1d22;
    --ink: #e9e6df;
    --ink-soft: #b3aea4;
    --ink-faint: #7d786e;
    --rail: #2a2f36;
    --accent: #7ed3b2;
    --accent-soft: #1d2b28;
    --mark: #e8a35c;
    --mark-soft: #2b2419;
    --code-bg: #1c2026;
    --rule: #272c33;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 12px 32px -16px rgba(0, 0, 0, 0.7);
  }
}

:root[data-theme="light"] {
  --paper: #fbfaf7;
  --paper-raised: #ffffff;
  --ink: #1b1a17;
  --ink-soft: #55514a;
  --ink-faint: #8a857c;
  --rail: #e3ded3;
  --accent: #2f5d50;
  --accent-soft: #e7efe9;
  --mark: #b45309;
  --mark-soft: #fdf2e3;
  --code-bg: #f4f1ea;
  --rule: #e8e3d8;
  --shadow: 0 1px 2px rgba(27, 26, 23, 0.04), 0 8px 24px -12px rgba(27, 26, 23, 0.18);
}

:root[data-theme="dark"] {
  --paper: #14161a;
  --paper-raised: #1a1d22;
  --ink: #e9e6df;
  --ink-soft: #b3aea4;
  --ink-faint: #7d786e;
  --rail: #2a2f36;
  --accent: #7ed3b2;
  --accent-soft: #1d2b28;
  --mark: #e8a35c;
  --mark-soft: #2b2419;
  --code-bg: #1c2026;
  --rule: #272c33;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 12px 32px -16px rgba(0, 0, 0, 0.7);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

html,
button,
input,
textarea,
select {
  /* A reader should see the characters to type, not the ligature a font chose:
   * form controls do not inherit this, so they are listed too. */
  font-variant-ligatures: no-contextual;
}

/* The bar is part of the page: thin, in the rail's colour, no arrows. Chrome
 * ignores ::-webkit-scrollbar once scrollbar-color is set, so the standard
 * properties are given only to the browsers that have no such pseudo-element. */
@supports not selector(::-webkit-scrollbar) {
  :root {
    scrollbar-width: thin;
    scrollbar-color: var(--rail) transparent;
  }
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--rail);
  border: 2px solid var(--paper);
  border-radius: 999px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--ink-faint);
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* -- the rail ------------------------------------------------------------- */

.shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 28px;
}

.wrap {
  max-width: 760px;
}

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--mark);
}

/* -- top bar -------------------------------------------------------------- */

header.top {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--rule);
}

header.top .shell {
  display: flex;
  align-items: center;
  gap: 22px;
  height: 62px;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-family: var(--mono);
  font-size: 16px;
  letter-spacing: -0.02em;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
}

.brand b {
  font-weight: 650;
}

.brand span {
  color: var(--ink-faint);
  font-size: 13px;
}

nav.main {
  display: flex;
  gap: 20px;
  margin-left: auto;
  font-size: 14.5px;
}

nav.main a {
  color: var(--ink-soft);
  text-decoration: none;
  padding: 4px 0;
  border-bottom: 1.5px solid transparent;
}

nav.main a:hover,
nav.main a[aria-current="page"] {
  color: var(--ink);
  border-bottom-color: var(--accent);
}

button.theme {
  border: 1px solid var(--rule);
  background: var(--paper-raised);
  color: var(--ink-soft);
  font: inherit;
  font-size: 13px;
  padding: 5px 11px;
  border-radius: 999px;
  cursor: pointer;
}

button.theme:hover {
  color: var(--ink);
  border-color: var(--ink-faint);
}

/* -- type ----------------------------------------------------------------- */

h1,
h2,
h3,
h4 {
  font-family: var(--serif);
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.2;
  margin: 0;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 3.6rem);
}

h2 {
  font-size: 1.75rem;
  margin: 0 0 0.6rem;
}

h3 {
  font-size: 1.2rem;
  margin: 2.2rem 0 0.5rem;
}

p {
  margin: 0.85rem 0;
  color: var(--ink-soft);
}

p strong,
li strong {
  color: var(--ink);
  font-weight: 600;
}

ul,
ol {
  padding-left: 1.35rem;
  color: var(--ink-soft);
}

li {
  margin: 0.35rem 0;
}

li::marker {
  color: var(--ink-faint);
}

hr {
  border: 0;
  border-top: 1px solid var(--rule);
  margin: 3.2rem 0;
}

/* -- hero ----------------------------------------------------------------- */

.hero {
  padding: 5.5rem 0 3rem;
  position: relative;
}

.hero .eyebrow {
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mark);
  margin: 0 0 1.1rem;
}

.hero h1 {
  max-width: 15ch;
}

.hero h1 em {
  font-style: normal;
  color: var(--accent);
}

.hero .lede {
  font-family: var(--serif);
  font-size: 1.32rem;
  line-height: 1.55;
  color: var(--ink-soft);
  max-width: 58ch;
  margin-top: 1.4rem;
}

.hero-split {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 3rem;
  align-items: start;
}

/* A code block and its output, one above the other: the output of a real run is
 * wider than half a page, and a clipped JSON line is the one line worth reading. */
.stack {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.8rem;
  align-items: start;
  margin: 1.6rem 0 0;
}

@media (width <= 900px) {
  .hero-split {
    /* minmax(0, …) rather than 1fr: a grid item's automatic minimum is the width
     * of the longest line of code inside it, which would push the page sideways. */
    grid-template-columns: minmax(0, 1fr);
    gap: 2rem;
  }
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 550;
  text-decoration: none;
  border: 1px solid transparent;
}

.button.primary {
  background: var(--accent);
  color: var(--paper);
}

:root[data-theme="dark"] .button.primary {
  color: #0d1412;
}

.button.ghost {
  border-color: var(--rail);
  color: var(--ink);
  background: var(--paper-raised);
}

.button:hover {
  transform: translateY(-1px);
}

/* -- code ----------------------------------------------------------------- */

pre,
code {
  font-family: var(--mono);
  font-size: 13.5px;
  font-variant-ligatures: none;
}

code {
  background: var(--code-bg);
  border: 1px solid var(--rule);
  border-radius: 5px;
  padding: 0.1em 0.36em;
  font-size: 0.88em;
  color: var(--ink);
}

pre {
  background: var(--code-bg);
  border: 1px solid var(--rule);
  border-radius: 12px;
  padding: 18px 20px;
  overflow-x: auto;
  max-width: 100%;
  line-height: 1.62;
  box-shadow: var(--shadow);
  tab-size: 2;
}

pre code {
  background: none;
  border: 0;
  padding: 0;
  font-size: inherit;
  color: var(--ink);
}

/* The output of a run, wrapped rather than scrolled: a JSON line is one line and
 * the part past the edge is usually the part worth reading. */
pre.wraps {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

/* A code block in the hero, with the rail behind it. */
.figure {
  position: relative;
  margin: 0;
}

.figure figcaption {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 8px;
}

pre .k {
  color: var(--accent);
}

pre .s {
  color: var(--mark);
}

pre .c {
  /* Faint enough to sit behind the code, dark enough to read at 13px. */
  color: color-mix(in srgb, var(--ink-faint) 55%, var(--ink));
  font-style: italic;
}

pre .a {
  color: var(--accent);
  font-weight: 600;
}

pre .n {
  color: var(--ink);
}

.copy {
  position: absolute;
  top: 0;
  right: 0;
  border: 1px solid var(--rule);
  background: var(--paper-raised);
  color: var(--ink-faint);
  font: inherit;
  font-family: var(--sans);
  font-size: 11.5px;
  padding: 3px 9px;
  border-radius: 999px;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.15s;
}

.figure:hover .copy,
.copy:focus-visible {
  opacity: 1;
}

/* A finger has no hover, so the button is simply there. */
@media (hover: none) {
  .copy {
    opacity: 1;
  }
}

.copy.done {
  color: var(--accent);
  border-color: var(--accent);
}

/* -- sections ------------------------------------------------------------- */

section.block {
  padding: 2.6rem 0;
  border-top: 1px solid var(--rule);
}

section.block > .label {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mark);
  margin-bottom: 0.7rem;
}

.cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-top: 1.4rem;
}

.card {
  background: var(--paper-raised);
  border: 1px solid var(--rule);
  border-radius: 12px;
  padding: 18px 20px;
}

.card h3 {
  margin: 0 0 0.3rem;
  font-size: 1.05rem;
  font-family: var(--sans);
  font-weight: 620;
}

.card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.55;
}

.card .tag {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  display: block;
  margin-bottom: 6px;
}

/* -- tables --------------------------------------------------------------- */

table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.4rem 0;
  font-size: 14.5px;
}

/* A five-column table of numbers does not fit a phone, and shrinking it to fit
 * makes it unreadable; it scrolls sideways instead, in its own box. */
.table-wrap {
  overflow-x: auto;
  margin: 1.4rem 0;
  border-radius: 10px;
}

.table-wrap table {
  margin: 0;
}

th,
td {
  text-align: left;
  padding: 9px 12px;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
}

th {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-faint);
  font-weight: 500;
  white-space: nowrap;
}

td.num {
  text-align: right;
  font-family: var(--mono);
  font-size: 13.5px;
  font-variant-numeric: tabular-nums;
}

tbody tr:hover {
  background: color-mix(in srgb, var(--accent) 5%, transparent);
}

td code {
  white-space: nowrap;
}

/* -- docs layout ---------------------------------------------------------- */

.docs {
  display: grid;
  grid-template-columns: 210px minmax(0, 1fr);
  gap: 3.2rem;
  padding: 2.6rem 0 6rem;
  align-items: start;
}

@media (width <= 860px) {
  .docs {
    grid-template-columns: minmax(0, 1fr);
    gap: 1.6rem;
  }
  aside.toc {
    position: static !important;
    border: 1px solid var(--rule);
    border-radius: 12px;
    padding: 14px 18px;
  }
}

/* Neither column may be widened by a table or a line of code that scrolls
 * inside it. */
.docs > * {
  min-width: 0;
}

aside.toc {
  position: sticky;
  top: 84px;
  border-left: 2px solid var(--rail);
  padding-left: 18px;
}

aside.toc h4 {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faint);
  font-weight: 500;
  margin-bottom: 10px;
}

aside.toc a {
  display: block;
  font-size: 14px;
  padding: 3px 0;
  color: var(--ink-soft);
  text-decoration: none;
}

aside.toc a:hover {
  color: var(--accent);
}

.doc h2 {
  margin-top: 3rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--rule);
}

/* Prose stops at a readable measure; a table may use the whole column. */
.doc > p,
.doc > ul,
.doc > ol,
.doc > pre,
.doc > .note,
.doc > .quiet {
  max-width: 820px;
}

.doc h2:first-child {
  margin-top: 0;
  border-top: 0;
  padding-top: 0;
}

/* -- notes ---------------------------------------------------------------- */

.note {
  border-left: 3px solid var(--mark);
  background: var(--mark-soft);
  border-radius: 0 8px 8px 0;
  padding: 12px 16px;
  margin: 1.4rem 0;
  font-size: 14.8px;
}

.note b {
  color: var(--ink);
}

.note p {
  margin: 0.3rem 0;
}

.quiet {
  border-left: 3px solid var(--rail);
  background: var(--accent-soft);
  border-radius: 0 8px 8px 0;
  padding: 12px 16px;
  margin: 1.4rem 0;
  font-size: 14.8px;
}

/* -- footer --------------------------------------------------------------- */

footer.bottom {
  border-top: 1px solid var(--rule);
  padding: 2.4rem 0 3.4rem;
  font-size: 14px;
  color: var(--ink-faint);
}

footer.bottom .shell {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 28px;
  align-items: baseline;
}

footer.bottom a {
  color: var(--ink-soft);
  text-decoration: none;
}

footer.bottom a:hover {
  color: var(--accent);
}

footer.bottom .spacer {
  margin-left: auto;
}

/* -- small screens -------------------------------------------------------- */

@media (width <= 620px) {
  body {
    font-size: 16px;
  }
  .shell {
    padding: 0 18px;
  }
  /* Two rows rather than a page that scrolls sideways: the mark and the theme
   * button, then the links. */
  header.top .shell {
    height: auto;
    padding-top: 10px;
    padding-bottom: 10px;
    flex-wrap: wrap;
    gap: 6px 16px;
  }
  nav.main {
    order: 3;
    width: 100%;
    margin-left: 0;
    gap: 16px;
    font-size: 13.5px;
  }
  button.theme {
    order: 2;
    margin-left: auto;
  }
  .brand span {
    display: none;
  }
  pre {
    font-size: 12.5px;
    padding: 14px;
  }
}

/* -- the API reference ----------------------------------------------------
 *
 * The page is a list of signatures with what they mean, one item per public
 * name. A signature is code and never wraps: it scrolls inside its own box, the
 * same way the guide's examples do.
 */

.api h2 {
  font-family: var(--mono);
  font-size: 1.15rem;
  letter-spacing: 0.01em;
}

.api h3 {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
  font-weight: 500;
  margin: 2.2rem 0 0.6rem;
}

.api .blurb {
  color: var(--ink-soft);
  max-width: 760px;
}

.api .item {
  border-left: 2px solid var(--rail);
  padding: 2px 0 2px 18px;
  margin: 1.1rem 0 1.6rem;
}

.api .item:target {
  border-left-color: var(--mark);
}

.api pre.sig {
  background: none;
  border: 0;
  box-shadow: none;
  padding: 0;
  margin: 0 0 0.5rem;
  font-size: 13px;
  overflow-x: auto;
}

.api pre.sig code {
  background: none;
  border: 0;
  padding: 0;
  color: var(--accent);
  white-space: pre;
}

.api .prose p {
  margin: 0.4rem 0;
  font-size: 15.5px;
  max-width: 760px;
}

.api .prose ul {
  margin: 0.4rem 0;
  padding-left: 1.2rem;
  font-size: 15.5px;
}

.api .prose pre {
  margin: 0.6rem 0;
  font-size: 12.5px;
}

.api .field {
  border-top: 1px dashed var(--rule);
  padding-top: 0.5rem;
  margin-top: 0.7rem;
}

.api .field:first-of-type {
  border-top: 0;
}

.api .field .name {
  background: none;
  border: 0;
  padding: 0;
  font-size: 12.5px;
  color: var(--ink);
}

.api .field .prose p {
  font-size: 14.5px;
  color: var(--ink-soft);
  margin: 0.15rem 0 0;
}

aside.toc a {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}