@import url("https://fonts.googleapis.com/css2?family=Bricolage+Grotesque:opsz,wght@12..96,600;12..96,700&family=JetBrains+Mono:wght@400;500&family=Source+Sans+3:ital,wght@0,400;0,600;0,700;1,400&display=swap");

/* The palette comes from the logo: its navy R, the blue of its front page, and the green of the page behind. */
:root,
[data-bs-theme="light"] {
  --rf-navy: #13204d;
  --rf-cobalt: #1a6ae8;
  --rf-teal: #14a88a;
  --rf-pale: #a9e4ff;
  --rf-bg: #ffffff;
  --rf-surface: #f4f7fd;
  --rf-raised: #ffffff;
  --rf-text: #151b2e;
  --rf-muted: #566079;
  --rf-line: #e0e6f3;
  --rf-link: #1559d6;
  --rf-link-hover: #13204d;
  --rf-tint: #eaf4ff;
  --rf-code-bg: #f4f7fd;
  --rf-code-text: #173e8c;
  --rf-shadow: 0 1px 2px rgb(19 32 77 / 6%), 0 8px 24px rgb(19 32 77 / 8%);

  --rf-display: "Bricolage Grotesque", "Segoe UI", system-ui, sans-serif;
  --rf-body: "Source Sans 3", "Segoe UI", system-ui, -apple-system, sans-serif;
  --rf-mono: "JetBrains Mono", ui-monospace, "Cascadia Code", Consolas, monospace;

  --bs-body-bg: var(--rf-bg);
  --bs-body-color: var(--rf-text);
  --bs-secondary-color: var(--rf-muted);
  --bs-tertiary-bg: var(--rf-surface);
  --bs-border-color: var(--rf-line);
  --bs-link-color: var(--rf-link);
  --bs-link-color-rgb: 21, 89, 214;
  --bs-link-hover-color: var(--rf-link-hover);
  --bs-link-hover-color-rgb: 19, 32, 77;
  --bs-primary: var(--rf-cobalt);
  --bs-primary-rgb: 26, 106, 232;
  --bs-code-color: var(--rf-code-text);
  --bs-body-font-family: var(--rf-body);
  --bs-font-sans-serif: var(--rf-body);
  --bs-font-monospace: var(--rf-mono);
}

[data-bs-theme="dark"] {
  --rf-bg: #0b1120;
  --rf-surface: #111a2f;
  --rf-raised: #141e36;
  --rf-text: #e5eaf7;
  --rf-muted: #9ba7c6;
  --rf-line: #223053;
  --rf-link: #5cc2ff;
  --rf-link-hover: #a9e4ff;
  --rf-tint: #102449;
  --rf-code-bg: #0f172b;
  --rf-code-text: #a9e4ff;
  --rf-shadow: 0 1px 2px rgb(0 0 0 / 30%), 0 8px 24px rgb(0 0 0 / 30%);

  --bs-link-color-rgb: 92, 194, 255;
  --bs-link-hover-color-rgb: 169, 228, 255;
}

body {
  background: var(--rf-bg);
  color: var(--rf-text);
  font-family: var(--rf-body);
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}

/* ---- Navigation bar ---- */

body > header {
  background: color-mix(in srgb, var(--rf-bg) 88%, transparent) !important;
  backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--rf-line) !important;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: .6rem;
  font-family: var(--rf-display);
  font-weight: 700;
  font-size: 1.3rem;
  letter-spacing: -0.01em;
  color: var(--rf-navy);
}

[data-bs-theme="dark"] .navbar-brand {
  color: var(--rf-text);
}

#logo {
  width: auto;
  height: 34px;
  margin: 0;
}

#navbar .nav-link,
#navbar .navbar-nav > li > a {
  font-weight: 600;
  color: var(--rf-muted);
}

#navbar .nav-link:hover,
#navbar .nav-link.active,
#navbar .navbar-nav > li > a.active {
  color: var(--rf-text);
}

#search-query {
  border-radius: 999px;
  background: var(--rf-surface);
  border-color: var(--rf-line);
}

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

.toc {
  font-size: 15px;
}

/* Top-level entries are the sections; they read as labels over their pages. */
.toc > ul > li > .expand-stub + a,
.toc > ul > li > a {
  font-weight: 700;
  color: var(--rf-text);
}

.toc ul ul a {
  color: var(--rf-muted);
}

.toc a:hover {
  color: var(--rf-link);
}

.toc a.active {
  color: var(--rf-link) !important;
  font-weight: 600;
}

/* ---- Articles ---- */

article {
  line-height: 1.7;
}

article h1,
article h2,
article h3,
article h4 {
  font-family: var(--rf-display);
  font-weight: 700;
  letter-spacing: -0.015em;
  text-wrap: balance;
  color: var(--rf-text);
}

article h1 {
  font-size: 2.5rem;
  margin-bottom: 1.25rem;
}

article h2 {
  font-size: 1.65rem;
  margin-top: 2.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--rf-line);
}

article h3 {
  font-size: 1.25rem;
  margin-top: 2rem;
}

/* The paragraph under a page title introduces it. */
article h1 + p,
article h1 + .rf-version + p {
  font-size: 1.15rem;
  color: var(--rf-muted);
}

article a:not(.btn) {
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

article li + li {
  margin-top: .35rem;
}

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

code {
  font-family: var(--rf-mono);
  font-size: .86em;
}

article :not(pre) > code {
  font-size: .8em;
  padding: .12em .38em;
  border-radius: 6px;
  background: var(--rf-tint);
  color: var(--rf-code-text);
}

article pre {
  position: relative;
  background: var(--rf-code-bg) !important;
  border: 1px solid var(--rf-line);
  border-radius: 12px;
  padding: 1rem 1.15rem;
  font-size: 14px;
  line-height: 1.6;
}

article pre > code {
  background: transparent !important;
  padding: 0 !important;
}

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

article table {
  border-collapse: separate;
  border-spacing: 0;
  width: 100%;
  border: 1px solid var(--rf-line);
  border-radius: 12px;
  overflow: hidden;
  font-size: 15px;
}

article table th {
  background: var(--rf-surface);
  font-weight: 700;
}

article table th,
article table td {
  padding: .6rem .85rem;
  border-bottom: 1px solid var(--rf-line);
  vertical-align: top;
}

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

/* ---- Callouts ---- */

article .alert {
  border: 1px solid var(--rf-line);
  border-left: 4px solid var(--rf-cobalt);
  border-radius: 10px;
  background: var(--rf-tint);
  color: var(--rf-text);
}

/* ---- Version labels ---- */

/* "Coming in 4.0" marks what's on main but not yet released; at release it becomes "Added in 4.0" (rf-added). */
.rf-version {
  margin: -0.5rem 0 1rem;
}

.rf-badge {
  display: inline-block;
  padding: .1em .55em;
  border-radius: 999px;
  font-family: var(--rf-mono);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.6;
  white-space: nowrap;
  vertical-align: .12em;
}

.rf-upcoming {
  background: var(--rf-tint);
  color: var(--rf-link);
  border: 1px solid color-mix(in srgb, var(--rf-cobalt) 35%, transparent);
}

[data-bs-theme="dark"] .rf-upcoming {
  color: var(--rf-pale);
}

.rf-added {
  background: var(--rf-surface);
  color: var(--rf-muted);
  border: 1px solid var(--rf-line);
}

/* Sidebar entries for pages about unreleased features; remove these at release. */
.toc a[href$="expiry.html"]::after,
.toc a[href$="telemetry.html"]::after,
.toc a[href$="health-checks.html"]::after,
.toc a[href$="container-policies.html"]::after,
.toc a[href$="sharing-links.html"]::after,
.toc a[href$="sharing-links-in-production.html"]::after,
.toc a[href$="backup-and-move.html"]::after,
.toc a[href$="copying-and-moving.html"]::after,
.toc a[href$="upload-inspection.html"]::after,
.toc a[href$="thumbnails.html"]::after,
.toc a[href$="upgrading-to-4.html"]::after,
.toc a[href$="aspire.html"]::after {
  content: "4.0";
  margin-left: .45em;
  padding: 0 .45em;
  border-radius: 999px;
  font-family: var(--rf-mono);
  font-size: 11px;
  background: var(--rf-tint);
  color: var(--rf-link);
}

/* ---- Footer, page navigation and "In this article" ---- */

.affix h5 {
  font-family: var(--rf-display);
  font-size: .8rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--rf-muted);
}

.next-article a {
  font-weight: 600;
}

body > footer {
  background: var(--rf-surface);
  color: var(--rf-muted) !important;
  font-size: 14px;
}

/* ---- The home page ---- */

body[data-layout="landing"] main {
  max-width: none;
  padding: 0;
}

body[data-layout="landing"] .actionbar,
body[data-layout="landing"] .contribution,
body[data-layout="landing"] .next-article {
  display: none;
}

.rf-home {
  --gutter: max(16px, 4vw);
}

.rf-home section {
  padding: 4.5rem var(--gutter);
}

.rf-wrap {
  max-width: 1140px;
  margin: 0 auto;
}

.rf-hero {
  background:
    radial-gradient(1200px 500px at 85% -10%, color-mix(in srgb, var(--rf-cobalt) 22%, transparent), transparent 60%),
    radial-gradient(700px 400px at 5% 110%, color-mix(in srgb, var(--rf-teal) 12%, transparent), transparent 60%),
    linear-gradient(180deg, var(--rf-tint), var(--rf-bg));
  border-bottom: 1px solid var(--rf-line);
}

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

.rf-hero h1 {
  font-family: var(--rf-display);
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin: 0 0 1.1rem;
  text-wrap: balance;
  border: 0;
  padding: 0;
}

.rf-hero h1 span {
  background: linear-gradient(120deg, var(--rf-navy), var(--rf-cobalt));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

[data-bs-theme="dark"] .rf-hero h1 span {
  background: linear-gradient(120deg, var(--rf-pale), var(--rf-cobalt));
  -webkit-background-clip: text;
  background-clip: text;
}

.rf-lede {
  font-size: 1.2rem;
  color: var(--rf-muted);
  max-width: 34em;
  margin-bottom: 1.75rem;
}

.rf-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  align-items: center;
}

.rf-btn {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  padding: .7rem 1.25rem;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none !important;
  border: 1px solid transparent;
  transition: transform .15s ease, box-shadow .15s ease;
}

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

.rf-btn-primary {
  background: linear-gradient(135deg, var(--rf-navy), var(--rf-cobalt));
  color: #fff !important;
  box-shadow: 0 6px 18px rgb(26 106 232 / 30%);
}

.rf-btn-secondary {
  background: var(--rf-raised);
  color: var(--rf-text) !important;
  border-color: var(--rf-line);
}

.rf-install {
  margin-top: 1.5rem;
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  padding: .5rem .9rem;
  border: 1px dashed var(--rf-line);
  border-radius: 10px;
  font-family: var(--rf-mono);
  font-size: 14px;
  color: var(--rf-muted);
  background: var(--rf-raised);
  max-width: 100%;
  overflow-x: auto;
  white-space: nowrap;
}

.rf-install b {
  color: var(--rf-link);
  font-weight: 500;
}

/* While main.js types the package names, a cursor follows them. */
.rf-install-name.rf-typing::after {
  content: "";
  display: inline-block;
  width: calc(1ch - 1px);
  height: 1.1em;
  margin-left: 1px;
  vertical-align: text-bottom;
  background: var(--rf-link);
  animation: rf-blink 1s steps(1) infinite;
}

@keyframes rf-blink {
  50% {
    opacity: 0;
  }
}

.rf-install-pause {
  border: 0;
  padding: 0 .15rem;
  background: none;
  color: var(--rf-muted);
  line-height: 1;
  cursor: pointer;
}

.rf-install-pause:hover,
.rf-install-pause:focus-visible {
  color: var(--rf-link);
}

.rf-code {
  border-radius: 16px;
  background: var(--rf-raised);
  border: 1px solid var(--rf-line);
  box-shadow: var(--rf-shadow);
  overflow: hidden;
  min-width: 0;
}

.rf-code-bar {
  display: flex;
  align-items: center;
  gap: .4rem;
  padding: .65rem 1rem;
  border-bottom: 1px solid var(--rf-line);
  font-family: var(--rf-mono);
  font-size: 13px;
  color: var(--rf-muted);
}

.rf-code-bar i {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--rf-line);
}

.rf-code-bar span {
  margin-left: .5rem;
}

.rf-code pre {
  margin: 0;
  border: 0;
  border-radius: 0;
  background: transparent !important;
  padding: 1.1rem 1.25rem;
  font-size: 13.5px;
  overflow-x: auto;
}

.rf-section-head {
  max-width: 44em;
  margin-bottom: 2.25rem;
}

.rf-section-head h2 {
  font-family: var(--rf-display);
  font-size: clamp(1.7rem, 3vw, 2.2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 .6rem;
  border: 0;
  padding: 0;
}

.rf-section-head p {
  color: var(--rf-muted);
  font-size: 1.1rem;
  margin: 0;
}

.rf-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr));
  gap: 1.1rem;
}

.rf-card {
  display: flex;
  flex-direction: column;
  gap: .5rem;
  padding: 1.35rem 1.4rem;
  border: 1px solid var(--rf-line);
  border-radius: 14px;
  background: var(--rf-raised);
  color: var(--rf-text) !important;
  text-decoration: none !important;
  transition: border-color .15s ease, transform .15s ease, box-shadow .15s ease;
}

.rf-card:hover {
  border-color: color-mix(in srgb, var(--rf-cobalt) 55%, var(--rf-line));
  transform: translateY(-2px);
  box-shadow: var(--rf-shadow);
}

.rf-card h3 {
  font-family: var(--rf-display);
  font-size: 1.15rem;
  font-weight: 700;
  margin: 0;
  display: flex;
  align-items: center;
  gap: .55rem;
}

.rf-card h3 .bi {
  display: inline-grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border-radius: 9px;
  background: var(--rf-tint);
  color: var(--rf-cobalt);
  font-size: 1rem;
}

[data-bs-theme="dark"] .rf-card h3 .bi {
  color: var(--rf-pale);
}

.rf-card p {
  margin: 0;
  color: var(--rf-muted);
  font-size: 15.5px;
  line-height: 1.55;
}

.rf-paths {
  background: var(--rf-surface);
  border-top: 1px solid var(--rf-line);
  border-bottom: 1px solid var(--rf-line);
}

.rf-path {
  padding: 1.25rem 1.35rem;
  border-radius: 14px;
  background: var(--rf-raised);
  border: 1px solid var(--rf-line);
}

.rf-path h3 {
  font-family: var(--rf-display);
  font-size: 1.05rem;
  margin: 0 0 .65rem;
}

.rf-path ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .35rem;
  font-size: 15.5px;
}

.rf-path a {
  text-decoration: none;
}

.rf-path a:hover {
  text-decoration: underline;
}

.rf-providers {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 250px), 1fr));
  gap: 1.1rem;
}

.rf-provider {
  padding: 1.2rem 1.3rem;
  border-radius: 14px;
  border: 1px solid var(--rf-line);
  background: var(--rf-raised);
}

.rf-provider code {
  font-size: 13.5px;
  color: var(--rf-code-text);
}

.rf-provider p {
  margin: .4rem 0 0;
  color: var(--rf-muted);
  font-size: 15px;
}

@media (max-width: 900px) {
  .rf-hero .rf-wrap {
    grid-template-columns: minmax(0, 1fr);
  }

  .rf-home section {
    padding-block: 3rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .rf-btn,
  .rf-card {
    transition: none;
  }

  .rf-btn:hover,
  .rf-card:hover {
    transform: none;
  }
}