/*
 * Hand-written, no framework, no build step — Eleventy copies this verbatim.
 *
 * The palette is lifted from the extension icon so the site and the Marketplace
 * tile read as one thing: ink background, light text, amber for the exception.
 * Amber is reserved for the *exception* everywhere, on the page as in the tree,
 * so the accent always means the same thing.
 */

:root {
  --ink: #1e2333;
  --ink-raised: #262c40;
  --ink-line: #333a52;
  --text: #e8ecf5;
  --text-dim: #a3adc4;
  --amber: #f5a524;
  --green: #4ade80;
  --measure: 68ch;
  --pad: clamp(1rem, 4vw, 2rem);
  --font:
    ui-sans-serif, system-ui, -apple-system, "Segoe UI", roboto,
    "Helvetica Neue", arial, sans-serif;
  --mono:
    ui-monospace, sfmono-regular, "SF Mono", menlo, consolas, "Liberation Mono",
    monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

body {
  margin: 0;
  background: var(--ink);
  color: var(--text);
  font-family: var(--font);
  font-size: clamp(1rem, 0.96rem + 0.2vw, 1.0625rem);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--amber);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

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

/* Visible only once focused, so keyboard users get a way past the header. */
.skip {
  position: absolute;
  left: -9999px;
}

.skip:focus {
  left: var(--pad);
  top: var(--pad);
  z-index: 10;
  background: var(--ink-raised);
  padding: 0.5rem 0.9rem;
  border-radius: 6px;
}

/* ---------------------------------------------------------------- chrome */

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem var(--pad);
  border-bottom: 1px solid var(--ink-line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text);
  font-weight: 650;
  letter-spacing: -0.01em;
  text-decoration: none;
}

.brand img {
  border-radius: 6px;
}

.topbar nav {
  display: flex;
  gap: 1.25rem;
  font-size: 0.95rem;
}

.topbar nav a {
  color: var(--text-dim);
  text-decoration: none;
}

.topbar nav a:hover {
  color: var(--text);
}

footer {
  border-top: 1px solid var(--ink-line);
  padding: 2rem var(--pad) 3rem;
  color: var(--text-dim);
  font-size: 0.9rem;
  text-align: center;
}

footer p {
  margin: 0.25rem 0;
}

.fine {
  color: color-mix(in srgb, var(--text-dim) 70%, transparent);
  font-size: 0.85rem;
}

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

section {
  padding: clamp(2.5rem, 7vw, 4.5rem) var(--pad);
  border-bottom: 1px solid var(--ink-line);
}

section:last-of-type {
  border-bottom: 0;
}

.wrap {
  max-width: var(--measure);
  margin-inline: auto;
}

.wrap-wide {
  max-width: 78ch;
  margin-inline: auto;
}

h1,
h2,
h3 {
  line-height: 1.2;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

h1 {
  font-size: clamp(2.1rem, 1.4rem + 3.2vw, 3.4rem);
  margin: 0 0 0.6rem;
}

h2 {
  font-size: clamp(1.4rem, 1.1rem + 1.2vw, 1.9rem);
  margin: 0 0 1rem;
}

h3 {
  font-size: 1.05rem;
  margin: 0 0 0.35rem;
}

.lede {
  font-size: clamp(1.1rem, 1rem + 0.5vw, 1.3rem);
  color: var(--text-dim);
  margin: 0 0 1.75rem;
  text-wrap: pretty;
}

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

.hero {
  text-align: center;
  padding-block: clamp(3rem, 9vw, 6rem);

  /* Faint warm glow behind the title, echoing the icon's amber. */
  background:
    radial-gradient(
      60ch 30ch at 50% -10%,
      color-mix(in srgb, var(--amber) 12%, transparent),
      transparent 70%
    ),
    var(--ink);
}

.hero .lede {
  margin-inline: auto;
  max-width: 54ch;
}

.cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

.btn {
  display: inline-block;
  padding: 0.7rem 1.35rem;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid var(--ink-line);
  color: var(--text);
  background: var(--ink-raised);
}

.btn:hover {
  border-color: color-mix(in srgb, var(--amber) 50%, var(--ink-line));
}

.btn-primary {
  background: var(--amber);
  border-color: var(--amber);
  color: #241a05;
}

.btn-primary:hover {
  background: color-mix(in srgb, var(--amber) 88%, white);
}

.version {
  margin: 1.5rem 0 0;
  color: var(--text-dim);
  font-size: 0.9rem;
}

.version code {
  background: var(--ink-raised);
  color: var(--text);
}

/* --------------------------------------------------------------- pieces */

.pair {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 26ch), 1fr));
}

.card {
  background: var(--ink-raised);
  border: 1px solid var(--ink-line);
  border-radius: 10px;
  padding: 1.25rem 1.4rem;
}

.card p:last-child {
  margin-bottom: 0;
}

.num {
  color: var(--amber);
  font-family: var(--mono);
  font-size: 0.85rem;
}

/* The rendered tree stands in for a screenshot: it is the actual output
   shape, and unlike an image it stays readable and selectable at any size. */
.tree {
  background: #171b28;
  border: 1px solid var(--ink-line);
  border-radius: 10px;
  padding: 1.25rem 1.4rem;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 0.875rem;
  line-height: 1.85;
  white-space: pre;
  tab-size: 2;
}

.tree .t-exc {
  color: var(--amber);
  font-weight: 600;
}

.tree .t-ok {
  color: var(--green);
}

.tree .t-dim {
  color: var(--text-dim);
}

.tree .t-note {
  color: color-mix(in srgb, var(--text-dim) 75%, transparent);
}

dl.facts {
  display: grid;
  gap: 0.75rem 1.5rem;
  grid-template-columns: max-content 1fr;
  margin: 0;
}

dl.facts dt {
  font-weight: 650;
  color: var(--text);
}

dl.facts dd {
  margin: 0;
  color: var(--text-dim);
}

@media (width <= 34rem) {
  dl.facts {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }

  dl.facts dd {
    margin-bottom: 0.6rem;
  }
}

code {
  font-family: var(--mono);
  font-size: 0.9em;
  background: var(--ink-raised);
  border: 1px solid var(--ink-line);
  border-radius: 4px;
  padding: 0.1em 0.35em;
}

/* ------------------------------------------------------- docs page only */

/* Markdown content: the docs page is prose, so it needs table, kbd and
   heading rules the landing page never exercises. */
.wrap-wide table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.25rem 0;
  font-size: 0.94rem;
}

.wrap-wide th,
.wrap-wide td {
  text-align: left;
  padding: 0.55rem 0.8rem;
  border-bottom: 1px solid var(--ink-line);
  vertical-align: top;
}

.wrap-wide th {
  color: var(--text);
  font-weight: 650;
  border-bottom-color: color-mix(in srgb, var(--amber) 40%, var(--ink-line));
}

.wrap-wide td {
  color: var(--text-dim);
}

.wrap-wide td code {
  white-space: nowrap;
}

.wrap-wide h1 {
  font-size: clamp(1.9rem, 1.4rem + 2vw, 2.6rem);
  margin-bottom: 1rem;
}

.wrap-wide h2 {
  margin-top: 2.75rem;
  padding-top: 0.5rem;
}

.wrap-wide h3 {
  margin-top: 1.75rem;
  color: var(--text);
}

.wrap-wide ol,
.wrap-wide ul {
  padding-left: 1.25rem;
}

.wrap-wide li {
  margin: 0.35rem 0;
}

pre {
  background: #171b28;
  border: 1px solid var(--ink-line);
  border-radius: 8px;
  padding: 0.9rem 1.1rem;
  overflow-x: auto;
}

pre code {
  background: none;
  border: 0;
  padding: 0;
  font-size: 0.9rem;
}

kbd {
  font-family: var(--mono);
  font-size: 0.82em;
  background: var(--ink-raised);
  border: 1px solid var(--ink-line);
  border-bottom-width: 2px;
  border-radius: 4px;
  padding: 0.1em 0.4em;
}