:root {
  --bg: #ffffff;
  --panel: #f7f8fa;
  --ink: #1b1f24;
  --muted: #5b6673;
  --line: #e2e6eb;
  --accent: #2f6fd0;
  --accent-ink: #ffffff;
  --code-bg: #f2f4f7;
  --yes: #1f7a4d;
  --partial: #8a6100;
  --no: #a33a3a;
  --radius: 10px;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) {
    --bg: #14171b;
    --panel: #1b1f25;
    --ink: #e6e9ed;
    --muted: #9aa5b1;
    --line: #2b313a;
    --accent: #6ea8fe;
    --accent-ink: #10131a;
    --code-bg: #1f242b;
    --yes: #57c48a;
    --partial: #d8a53a;
    --no: #e07a7a;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font:
    16px/1.6 system-ui,
    -apple-system,
    'Segoe UI',
    Roboto,
    Helvetica,
    Arial,
    sans-serif;
  -webkit-text-size-adjust: 100%;
}

.wrap {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 20px;
}

a {
  color: var(--accent);
}

header {
  border-bottom: 1px solid var(--line);
  background: var(--panel);
  padding: 48px 0 36px;
}

.eyebrow {
  margin: 0 0 6px;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

h1 {
  margin: 0;
  font-size: clamp(28px, 5vw, 40px);
  letter-spacing: -0.02em;
}

.lede {
  margin: 12px 0 0;
  max-width: 60ch;
  font-size: 18px;
  color: var(--muted);
}

.actions {
  margin: 24px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.btn {
  display: inline-block;
  padding: 9px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--ink);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
}

.btn:hover {
  border-color: var(--accent);
}

/* something the page names but cannot link to yet */
.btn.off {
  color: var(--muted);
  border-style: dashed;
  cursor: not-allowed;
}

.btn.off:hover {
  border-color: var(--line);
}

.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
}

nav {
  position: sticky;
  top: 0;
  z-index: 2;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

nav .wrap {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  padding-top: 12px;
  padding-bottom: 12px;
  scrollbar-width: none;
}

nav .wrap::-webkit-scrollbar {
  display: none;
}

nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
  white-space: nowrap;
}

nav a:hover {
  color: var(--ink);
}

main {
  padding: 8px 20px 64px;
}

section {
  padding-top: 44px;
  scroll-margin-top: 60px;
}

h2 {
  margin: 0 0 14px;
  font-size: 24px;
  letter-spacing: -0.01em;
}

h3 {
  margin: 28px 0 8px;
  font-size: 17px;
}

p,
ul {
  max-width: 68ch;
}

li {
  margin-bottom: 8px;
}

.note {
  border-left: 3px solid var(--line);
  padding-left: 14px;
  color: var(--muted);
  font-size: 15px;
}

code {
  background: var(--code-bg);
  border-radius: 5px;
  padding: 1px 5px;
  font-family: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 0.9em;
}

pre {
  background: var(--code-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 16px;
  overflow-x: auto;
}

pre code {
  background: none;
  padding: 0;
  font-size: 13.5px;
  line-height: 1.55;
}

.scroll {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin: 16px 0;
}

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

th,
td {
  text-align: left;
  padding: 10px 14px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

thead th {
  background: var(--panel);
  font-size: 13px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--muted);
  white-space: nowrap;
}

tbody tr:last-child td {
  border-bottom: none;
}

.opts td:first-child,
.matrix td:first-child,
.versions td:first-child {
  white-space: nowrap;
}

/* the headings are property names, so they keep their own casing */
.matrix thead th {
  text-transform: none;
  letter-spacing: 0;
  font-size: 14px;
  color: var(--ink);
}

.matrix td:not(:first-child) {
  white-space: nowrap;
  font-size: 14px;
}

.matrix .y {
  color: var(--yes);
}

.matrix .p {
  color: var(--partial);
}

.matrix .n {
  color: var(--no);
}

.matrix .na {
  color: var(--muted);
}

.cards {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  margin-top: 16px;
}

.card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  padding: 18px 20px;
}

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

.cardnote {
  margin: 4px 0 12px;
  color: var(--muted);
  font-size: 14px;
}

.card ul {
  margin: 0;
  padding-left: 20px;
  font-size: 15px;
}

footer {
  border-top: 1px solid var(--line);
  background: var(--panel);
  padding: 28px 0;
  color: var(--muted);
  font-size: 14px;
}

footer p {
  margin: 0 0 6px;
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

footer .updated {
  display: block;
}

/* --- mark playground and release pages --- */

header.slim {
  padding: 32px 0 24px;
}

header.slim .eyebrow a {
  color: inherit;
  text-decoration: none;
}

header.slim .eyebrow a:hover {
  color: var(--accent);
}

.controls {
  border-bottom: 1px solid var(--line);
  background: var(--panel);
  position: sticky;
  top: 0;
  z-index: 2;
}

.controls .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 14px 20px;
  padding-top: 14px;
  padding-bottom: 14px;
}

.controls label > span {
  display: block;
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 4px;
}

.controls select {
  font: inherit;
  font-size: 15px;
  padding: 6px 8px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--bg);
  color: var(--ink);
}

fieldset {
  border: 0;
  margin: 0;
  padding: 0;
  min-width: 0;
}

legend {
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 0;
  margin-bottom: 4px;
}

.check {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-right: 14px;
  font-size: 15px;
  white-space: nowrap;
}

.check .value {
  margin-left: 2px;
  font: inherit;
  font-size: 13px;
  padding: 1px 4px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--bg);
  color: var(--ink);
  max-width: 11em;
}

.check .value option,
.check .value optgroup {
  background: var(--bg);
  color: var(--ink);
}

.callout {
  border: 1px solid var(--line);
  border-left-width: 3px;
  border-radius: var(--radius);
  padding: 10px 14px;
  margin: 20px 0;
  max-width: none;
  font-size: 15px;
}

.callout.bad {
  border-left-color: var(--no);
}

.callout.warn {
  border-left-color: var(--partial);
}

.panels {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.panel {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: #fff;
}

.panel figcaption {
  padding: 7px 12px;
  border-bottom: 1px solid var(--line);
  background: var(--panel);
  color: var(--muted);
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.panel > div {
  padding: 8px;
  overflow-x: auto;
}

details {
  margin-top: 32px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px 16px;
}

summary {
  cursor: pointer;
  font-weight: 500;
}

details .actions {
  margin: 14px 0;
}

button.btn {
  font: inherit;
  font-size: 15px;
  cursor: pointer;
}

.matrix td a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px dotted var(--muted);
}

.matrix td a:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.todo {
  color: var(--no);
  font-style: italic;
}

.callout ul {
  margin: 0;
  padding-left: 20px;
}

.callout li {
  margin-bottom: 4px;
}

.callout .y {
  color: var(--yes);
}

.callout .p {
  color: var(--partial);
}

.callout .n {
  color: var(--no);
}

.callout .na {
  color: var(--muted);
}

.madewith {
  display: block;
  color: var(--muted);
  font-size: 13px;
}