/* Tokens. The greens are sampled from the application logo. */
:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --bg-soft: #f6f8f6;
  --fg: #14181a;
  --fg-muted: #5b656b;
  --border: #e1e4e8;
  --link: #2a7d0c;
  --brand: #6ee03c;
  --brand-strong: #52c41a;
  --on-brand: #0d1f05;
  --code-bg: #f0f3f0;
  --font: ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, Arial, sans-serif;
  --mono: ui-monospace, 'Cascadia Code', Consolas, Menlo, monospace;
  --width: 1080px;
  --width-wide: 1280px;
  --gutter: 24px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1117;
    --bg-soft: #151b23;
    --fg: #e6edf3;
    --fg-muted: #9aa5b1;
    --border: #30363d;
    --link: #86ef57;
    --code-bg: #1b222b;
  }
}

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

html {
  scroll-padding-top: 72px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.6 var(--font);
}

a {
  color: var(--link);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

img {
  max-width: 100%;
}

h1,
h2,
h3 {
  line-height: 1.2;
  letter-spacing: -0.01em;
}

code {
  font-family: var(--mono);
  font-size: 0.9em;
  background: var(--code-bg);
  padding: 0.1em 0.35em;
  border-radius: 4px;
  overflow-wrap: anywhere;
}

/* Header and footer */

.bar {
  max-width: var(--width);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.bar-wide {
  max-width: var(--width-wide);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.site-header .bar {
  height: 56px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--fg);
  font-weight: 700;
  font-size: 18px;
}

.brand:hover {
  text-decoration: none;
}

.site-nav {
  display: flex;
  gap: 20px;
}

.site-nav a {
  color: var(--fg-muted);
  font-weight: 500;
}

.site-nav a:hover,
.site-nav a[aria-current='page'] {
  color: var(--fg);
  text-decoration: none;
}

.site-footer {
  margin-top: auto;
  border-top: 1px solid var(--border);
  color: var(--fg-muted);
  font-size: 14px;
}

.site-footer .bar {
  padding-top: 20px;
  padding-bottom: 20px;
  flex-wrap: wrap;
}

.site-footer nav {
  display: flex;
  gap: 16px;
}

.site-footer a {
  color: var(--fg-muted);
}

/* Buttons */

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-block;
  padding: 10px 18px;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--fg);
  font-weight: 600;
}

.button:hover {
  text-decoration: none;
  border-color: var(--fg-muted);
}

.button-primary {
  background: var(--brand);
  border-color: var(--brand);
  color: var(--on-brand);
}

.button-primary:hover {
  background: var(--brand-strong);
  border-color: var(--brand-strong);
}

/* Landing */

.wrap {
  max-width: var(--width);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.hero {
  max-width: 820px;
  margin: 0 auto;
  padding: 72px var(--gutter) 64px;
  text-align: center;
}

.hero-logo {
  display: block;
  margin: 0 auto 24px;
}

.hero h1 {
  margin: 0 0 20px;
  font-size: clamp(32px, 5.2vw, 52px);
  letter-spacing: -0.02em;
}

.lead {
  margin: 0 0 12px;
  font-size: 19px;
  color: var(--fg-muted);
}

.hero .actions {
  justify-content: center;
  margin-top: 28px;
}

.note {
  margin: 16px 0 0;
  font-size: 14px;
  color: var(--fg-muted);
}

.band {
  padding: 56px 0;
  border-top: 1px solid var(--border);
}

.band h2 {
  margin: 0 0 12px;
  font-size: 28px;
}

.section-lead {
  max-width: 720px;
  margin: 0 0 28px;
  color: var(--fg-muted);
  font-size: 17px;
}

.grid {
  display: grid;
  gap: 16px;
  margin-top: 28px;
}

.section-lead + .grid {
  margin-top: 0;
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.card {
  display: flex;
  flex-direction: column;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg-soft);
}

.card h3 {
  margin: 0 0 8px;
  font-size: 18px;
}

.card p {
  margin: 0;
  color: var(--fg-muted);
}

.card a {
  margin-top: auto;
  padding-top: 14px;
  font-weight: 500;
}

.split {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 40px;
}

.split p {
  color: var(--fg-muted);
}

.closing {
  text-align: center;
}

.closing .actions {
  justify-content: center;
  margin-top: 24px;
}

/* Single-column pages: download, changelog, 404 */

.page {
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  padding: 48px var(--gutter) 72px;
}

.page h1 {
  margin: 0 0 16px;
  font-size: 36px;
}

.page h2 {
  margin: 40px 0 12px;
  font-size: 22px;
}

.page li {
  margin: 8px 0;
}

.page .button {
  margin-top: 12px;
}

.center {
  text-align: center;
}

.center .actions {
  justify-content: center;
}

.notice {
  margin: 20px 0 0;
  padding: 16px 18px;
  border: 1px solid var(--border);
  border-left: 4px solid var(--brand-strong);
  border-radius: 8px;
  background: var(--bg-soft);
}

/* Documentation */

.docs {
  width: 100%;
  max-width: var(--width-wide);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 48px;
}

.docs-nav details {
  display: none;
}

.docs-nav-full {
  position: sticky;
  top: 56px;
  max-height: calc(100vh - 56px);
  overflow-y: auto;
  padding: 32px 0;
}

.nav-group p {
  margin: 0 0 6px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg-muted);
}

.nav-group ul {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
}

.nav-group a {
  display: block;
  padding: 5px 10px;
  margin-left: -10px;
  border-radius: 6px;
  color: var(--fg);
  font-size: 15px;
}

.nav-group a:hover {
  background: var(--bg-soft);
  text-decoration: none;
}

.nav-group a[aria-current='page'] {
  background: var(--bg-soft);
  color: var(--link);
  font-weight: 600;
}

.prose {
  min-width: 0;
  max-width: 800px;
  padding: 40px 0 72px;
}

.page.prose {
  padding: 48px var(--gutter) 72px;
}

.prose h1 {
  margin: 0 0 20px;
  font-size: 36px;
}

.prose h2 {
  margin: 44px 0 12px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  font-size: 24px;
}

.prose h3 {
  margin: 28px 0 8px;
  font-size: 19px;
}

.prose .anchor {
  color: inherit;
}

.prose .anchor:hover {
  text-decoration: none;
}

.prose .anchor:hover::after {
  content: ' #';
  color: var(--fg-muted);
}

.prose li {
  margin: 6px 0;
}

.prose pre {
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--code-bg);
  overflow-x: auto;
  font-size: 14px;
  line-height: 1.5;
}

.prose pre code {
  padding: 0;
  background: none;
  font-size: inherit;
  overflow-wrap: normal;
}

.prose blockquote {
  margin: 16px 0;
  padding: 2px 16px;
  border-left: 4px solid var(--brand-strong);
  color: var(--fg-muted);
}

.table-wrap {
  margin: 16px 0;
  overflow-x: auto;
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
}

.prose th,
.prose td {
  padding: 8px 12px;
  border: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

.prose th {
  background: var(--bg-soft);
}

.changelog h2 {
  font-size: 26px;
}

.pager {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 56px;
}

.pager a {
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--fg);
  font-weight: 600;
}

.pager a:hover {
  border-color: var(--fg-muted);
  text-decoration: none;
}

.pager span {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: var(--fg-muted);
}

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

@media (max-width: 860px) {
  :root {
    --gutter: 16px;
  }

  .site-nav {
    gap: 14px;
  }

  .hero {
    padding-top: 48px;
    padding-bottom: 48px;
  }

  .band {
    padding: 40px 0;
  }

  .docs {
    display: block;
  }

  .docs-nav-full {
    display: none;
  }

  .docs-nav details {
    display: block;
    margin-top: 16px;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
  }

  .docs-nav summary {
    cursor: pointer;
    font-weight: 600;
  }

  .docs-nav details[open] summary {
    margin-bottom: 16px;
  }

  .nav-group a {
    margin-left: 0;
  }

  .prose {
    padding-top: 24px;
  }

  .prose h1,
  .page h1 {
    font-size: 30px;
  }

  .pager {
    grid-template-columns: 1fr;
  }

  .pager-next {
    text-align: left;
  }
}