:root {
  --fb-ink: #384350;
  --fb-muted: #5c6773;
  --fb-line: #d8dee6;
  --fb-panel: #F4F6F9;
  --fb-accent: #0E7490;
  --fb-accent-strong: #0E7490;
  --fb-warning-bg: #fff7e6;
  --fb-warning-line: #e3a11a;
  --fb-note-bg: #eef8f7;
  --fb-note-line: #0E7490;
}

html {
  color: var(--fb-ink);
  font-family: "Inter", "Segoe UI", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.55;
}

body {
  max-width: 1080px;
  margin: 0 auto;
  padding: 32px 28px 56px;
}

nav#TOC {
  break-after: page;
  page-break-after: always;
}

nav#TOC h2 {
  break-before: auto;
  page-break-before: auto;
}

nav#TOC > ul {
  padding-left: 0;
}

nav#TOC li {
  list-style: none;
  margin: 0.22rem 0;
}

nav#TOC a {
  color: var(--fb-ink);
  text-decoration: none;
}

h1,
h2,
h3,
h4 {
  line-height: 1.25;
  margin-top: 1.7em;
}

h1 {
  break-before: page;
  color: var(--fb-accent-strong);
  font-size: 2.2rem;
  margin-top: 0;
  page-break-before: always;
  string-set: chapter content(text);
}

.doc-title {
  color: var(--fb-accent-strong);
  font-size: 2.2rem;
  line-height: 1.25;
  margin: 0 0 1rem;
  string-set: chapter content(text);
}

nav#TOC + .doc-meta,
nav#TOC + .doc-title,
nav#TOC + .doc-title + .doc-meta,
h1:first-of-type {
  break-before: auto;
  page-break-before: auto;
}

.doc-title + .doc-meta + h1,
.doc-title + .doc-meta + h2,
.doc-meta + .doc-title + h1,
.doc-meta + .doc-title + h2,
.doc-meta + h1,
.doc-meta + h2 {
  break-before: auto;
  page-break-before: auto;
}

h2 {
  break-before: page;
  border-bottom: 1px solid var(--fb-line);
  color: var(--fb-accent-strong);
  page-break-before: always;
  padding-bottom: 0.25rem;
}

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

code {
  background: #eef1f4;
  border-radius: 4px;
  padding: 0.1rem 0.28rem;
}

pre {
  background: #18212b;
  border-radius: 6px;
  color: #f5f7fa;
  padding: 1rem;
  white-space: pre-wrap;
}

pre code {
  background: transparent;
  padding: 0;
}

table {
  border-collapse: collapse;
  margin: 1rem 0 1.4rem;
  width: 100%;
}

th,
td {
  border: 1px solid var(--fb-line);
  padding: 0.55rem 0.7rem;
  vertical-align: top;
}

th {
  background: var(--fb-panel);
  text-align: left;
}

.doc-meta {
  background: var(--fb-panel);
  border: 1px solid var(--fb-line);
  border-radius: 6px;
  color: var(--fb-muted);
  margin: 1.5rem 0;
  padding: 0.9rem 1rem;
}

.cover-page {
  align-content: center;
  border-top: 2px solid var(--fb-accent);
  border-bottom: 2px solid var(--fb-accent);
  display: grid;
  min-height: 225mm;
  padding: 3rem 0;
  page: cover;
  page-break-after: always;
}

.cover-logo {
  height: auto;
  margin: 0 0 3rem;
  width: 320px;
}

.cover-title-block {
  margin-bottom: 4rem;
}

.cover-kicker {
  color: var(--fb-accent-strong);
  font-size: 0.9rem;
  font-weight: 800;
  letter-spacing: 0;
  margin: 0 0 0.5rem;
  text-transform: uppercase;
}

.cover-title-block h1 {
  border: 0;
  color: var(--fb-accent-strong);
  font-size: 4rem;
  margin: 0;
}

.cover-brand-tagline {
  color: var(--fb-accent-strong);
  font-size: 1.45rem;
  font-weight: 800;
  margin: 1rem 0 0;
}

.cover-subtitle {
  color: var(--fb-muted);
  font-size: 1.25rem;
  margin: 0.8rem 0 0;
  max-width: 680px;
}

.cover-revision-table {
  max-width: 620px;
}

.cover-revision-table th {
  width: 160px;
}

.cover-document-title {
  string-set: document-title content(text);
}

.note,
.warning,
.todo {
  border-left: 5px solid var(--fb-note-line);
  border-radius: 4px;
  margin: 1rem 0;
  padding: 0.85rem 1rem;
}

.note {
  background: var(--fb-note-bg);
}

.warning {
  background: var(--fb-warning-bg);
  border-left-color: var(--fb-warning-line);
}

.todo {
  background: #fff1f5;
  border: 1px solid #f0a6bc;
  border-left: 5px solid #c72c5a;
}

.todo strong {
  color: #9f183f;
}

.screenshot-box {
  background: var(--fb-panel);
  border: 1px solid var(--fb-line);
  border-radius: 6px;
  margin: 1.3rem 0;
  padding: 0.9rem;
}

.screenshot-box img {
  display: block;
  height: auto;
  max-width: 100%;
}

.screenshot-box figcaption {
  color: var(--fb-muted);
  font-size: 0.92rem;
  margin-top: 0.65rem;
}

.screenshot-box.placeholder {
  border-style: dashed;
  min-height: 120px;
}

.screenshot-box.placeholder figcaption {
  margin-top: 0;
}

.two-col {
  display: grid;
  gap: 1.2rem;
  grid-template-columns: minmax(260px, 0.9fr) minmax(280px, 1.1fr);
}

.field-list dt {
  font-weight: 700;
  margin-top: 0.65rem;
}

.field-list dd {
  margin-left: 0;
}

@page {
  margin: 24mm 16mm 22mm;

  @top-left-corner {
    content: "";
  }

  @top-left {
    color: #5c6773;
    content: string(document-title);
    font-size: 8.5pt;
    padding-bottom: 6mm;
    vertical-align: bottom;
  }

  @top-right {
    color: #5c6773;
    content: "Rev. 0.4";
    font-size: 8.5pt;
    padding-bottom: 6mm;
    vertical-align: bottom;
  }

  @top-center {
    content: "";
  }

  @top-right-corner {
    content: "";
  }

  @bottom-left-corner {
    content: "";
  }

  @bottom-left {
    color: #5c6773;
    content: string(chapter);
    font-size: 8.5pt;
    padding-top: 6mm;
    vertical-align: top;
  }

  @bottom-right {
    color: #5c6773;
    content: "Pagina " counter(page) " / " counter(pages);
    font-size: 8.5pt;
    padding-top: 6mm;
    vertical-align: top;
  }

  @bottom-center {
    content: "";
  }

  @bottom-right-corner {
    content: "";
  }
}

@media print {
  nav#TOC a::after {
    content: leader(".") target-counter(attr(href), page);
  }
}

@page cover {
  margin: 18mm 16mm;
  background-image: none;

  @top-left {
    content: none;
  }

  @top-left-corner {
    content: none;
  }

  @top-right {
    content: none;
  }

  @top-right-corner {
    content: none;
  }

  @top-center {
    content: none;
  }

  @bottom-left {
    content: none;
  }

  @bottom-left-corner {
    content: none;
  }

  @bottom-right {
    content: none;
  }

  @bottom-right-corner {
    content: none;
  }

  @bottom-center {
    content: none;
  }
}