/* ==========================================================================
   NexusAI Data Platform — PDF stylesheet
   Loaded site-wide, but every rule is scoped to @media print so it ONLY
   applies when WeasyPrint (mkdocs-pdf-export-plugin and mkdocs-with-pdf)
   renders pages to PDF. Has no effect on the live site.
   ========================================================================== */

/* --- Embedded fonts (always available; @font-face cannot live inside @media) - */

@font-face {
  font-family: "Source Serif 4";
  font-style: normal;
  font-weight: 400;
  src: url("../assets/fonts/SourceSerif4-Regular.otf") format("opentype");
}
@font-face {
  font-family: "Source Serif 4";
  font-style: italic;
  font-weight: 400;
  src: url("../assets/fonts/SourceSerif4-Italic.otf") format("opentype");
}
@font-face {
  font-family: "Source Serif 4";
  font-style: normal;
  font-weight: 700;
  src: url("../assets/fonts/SourceSerif4-Bold.otf") format("opentype");
}
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 400;
  src: url("../assets/fonts/Inter-Regular.otf") format("opentype");
}
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 600;
  src: url("../assets/fonts/Inter-SemiBold.otf") format("opentype");
}
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 700;
  src: url("../assets/fonts/Inter-Bold.otf") format("opentype");
}
@font-face {
  font-family: "JetBrains Mono";
  font-style: normal;
  font-weight: 400;
  src: url("../assets/fonts/JetBrainsMono-Regular.ttf") format("truetype");
}

@media print {
  /* ========================================================================
     PAGE GEOMETRY — A4 with asymmetric margins (binding-aware)
     Margin boxes carry running header (logo + site name) and
     running footer (chapter title + page number).
     ======================================================================== */

  @page {
    size: A4;
    margin: 26mm 18mm 22mm 25mm;

    @top-left {
      content: "NexusAI Data Platform";
      vertical-align: bottom;
      padding-bottom: 5mm;
      border-bottom: 0.4pt solid #cbd5e1;
      font-family: "Inter", sans-serif;
      font-size: 8pt;
      font-weight: 600;
      color: #1e1b4b;
      letter-spacing: 0.02em;
    }
    @top-right {
      content: string(chapter);
      vertical-align: bottom;
      padding-bottom: 5mm;
      border-bottom: 0.4pt solid #cbd5e1;
      font-family: "Inter", sans-serif;
      font-size: 8pt;
      color: #64748b;
      text-align: right;
    }
    @bottom-left {
      content: "Confidential";
      vertical-align: top;
      padding-top: 4mm;
      border-top: 0.4pt solid #cbd5e1;
      font-family: "Inter", sans-serif;
      font-size: 7.5pt;
      color: #94a3b8;
      letter-spacing: 0.04em;
      text-transform: uppercase;
    }
    @bottom-right {
      content: counter(page) " / " counter(pages);
      vertical-align: top;
      padding-top: 4mm;
      border-top: 0.4pt solid #cbd5e1;
      font-family: "Inter", sans-serif;
      font-size: 8pt;
      font-weight: 600;
      color: #1e1b4b;
      text-align: right;
    }

    /* Outer-edge brand accent bar (4pt purple stripe) */
    @right-middle {
      content: "";
      width: 4pt;
      height: 100%;
      background: #7c3aed;
    }
  }

  /* Cover page: full-bleed, no margin chrome.
     Scoped to the named `cover` page (assigned via `page: cover` on
     #doc-cover below) so per-page PDFs — which have no cover article —
     keep the default A4 margins on their first page. */
  @page cover {
    margin: 0;
    @top-left { content: none; }
    @top-right { content: none; }
    @bottom-left { content: none; }
    @bottom-right { content: none; }
    @right-middle { content: none; }
  }

  /* TOC pages: roman page numbers, no chapter title in footer */
  @page toc {
    @bottom-left {
      content: "Table of Contents";
      font-family: "Inter", sans-serif;
      font-size: 8pt;
      color: #64748b;
      vertical-align: top;
      padding-top: 4mm;
      border-top: 0.4pt solid #cbd5e1;
    }
    @bottom-right {
      content: counter(page, lower-roman);
      font-family: "Inter", sans-serif;
      font-size: 8pt;
      font-weight: 600;
      color: #1e1b4b;
      text-align: right;
      vertical-align: top;
      padding-top: 4mm;
      border-top: 0.4pt solid #cbd5e1;
    }
  }

  /* Make the TOC use roman numerals and reset page count after */
  #doc-toc {
    page: toc;
    counter-reset: page 1;
  }

  /* String set: capture chapter title from h1 for use in @top-right */
  h1 {
    string-set: chapter content();
  }

  /* Breathing room above the very first content heading on each page,
     so body content does not crowd the top hairline / running header. */
  .md-typeset > h1:first-child {
    margin-top: 6mm;
  }

  /* ========================================================================
     COVER PAGE STYLING (mkdocs-with-pdf article#doc-cover)
     ======================================================================== */

  #doc-cover {
    page: cover;
    page-break-after: always;
    width: 100%;
    height: 100vh;
    margin: 0;
    padding: 0;
    background: #1e1b4b;
    color: #ffffff;
    font-family: "Inter", sans-serif;
    display: block;
    position: relative;
  }

  #doc-cover .cover-band-top,
  #doc-cover .cover-band-bottom {
    height: 18mm;
    background: #0f0d2e;
    width: 100%;
  }
  #doc-cover .cover-band-bottom {
    border-top: 4pt solid #7c3aed;
  }

  #doc-cover .cover-content {
    padding: 40mm 30mm;
    display: block;
  }

  #doc-cover .cover-logo {
    margin-bottom: 30mm;
  }
  #doc-cover .cover-logo img {
    width: 70mm;
    height: auto;
    display: block;
  }

  #doc-cover .cover-title-block h1 {
    font-family: "Inter", sans-serif;
    font-size: 36pt;
    font-weight: 700;
    line-height: 1.15;
    margin: 0 0 6mm 0;
    color: #ffffff;
    string-set: none;
  }

  #doc-cover .cover-title-block h2 {
    font-family: "Source Serif 4", Georgia, serif;
    font-size: 18pt;
    font-weight: 400;
    font-style: italic;
    line-height: 1.3;
    margin: 0;
    color: #c4b5fd;
  }

  #doc-cover .cover-rule {
    margin: 18mm 0;
    height: 2pt;
    width: 30mm;
    background: #7c3aed;
  }

  #doc-cover .cover-meta {
    font-size: 10pt;
    line-height: 1.6;
    color: #cbd5e1;
  }
  #doc-cover .cover-meta p {
    margin: 0 0 1mm 0;
  }
  #doc-cover .cover-meta .cover-author {
    color: #ffffff;
    font-weight: 600;
    font-size: 11pt;
  }
  #doc-cover .cover-meta .cover-date {
    color: #a78bfa;
    font-weight: 600;
  }
  #doc-cover .cover-meta .cover-copyright {
    margin-top: 4mm;
    font-size: 9pt;
    color: #94a3b8;
  }

  /* ========================================================================
     TYPOGRAPHY
     ======================================================================== */

  html, body {
    font-family: "Source Serif 4", Georgia, "Times New Roman", serif;
    font-size: 11pt;
    line-height: 1.55;
    color: #1e293b;
    background: #ffffff;
  }

  body, .md-typeset {
    color: #1e293b;
    background: #ffffff;
    widows: 3;
    orphans: 3;
  }

  .md-typeset {
    font-size: 11pt;
    line-height: 1.55;
  }

  .md-typeset h1,
  .md-typeset h2,
  .md-typeset h3,
  .md-typeset h4,
  .md-typeset h5,
  .md-typeset h6 {
    font-family: "Inter", sans-serif;
    color: #1e1b4b;
    line-height: 1.25;
    page-break-after: avoid;
    break-after: avoid;
  }

  .md-typeset h1 {
    font-size: 24pt;
    font-weight: 700;
    margin: 0 0 8mm 0;
    padding-bottom: 3mm;
    border-bottom: 1.5pt solid #7c3aed;
  }
  .md-typeset h2 {
    font-size: 16pt;
    font-weight: 600;
    margin: 8mm 0 3mm 0;
  }
  .md-typeset h3 {
    font-size: 13pt;
    font-weight: 600;
    color: #312e81;
    margin: 6mm 0 2mm 0;
  }
  .md-typeset h4 {
    font-size: 11pt;
    font-weight: 600;
    color: #475569;
    margin: 4mm 0 2mm 0;
  }
  .md-typeset h5,
  .md-typeset h6 {
    font-size: 10pt;
    font-weight: 600;
    color: #64748b;
    margin: 3mm 0 1mm 0;
  }

  .md-typeset p {
    margin: 0 0 3mm 0;
    text-align: left;
    hyphens: manual;
    word-spacing: normal;
  }

  .md-typeset a {
    color: #1e1b4b;
    text-decoration: underline;
    word-break: break-word;
  }

  .md-typeset strong {
    color: #1e1b4b;
    font-weight: 700;
  }

  .md-typeset code,
  .md-typeset kbd {
    font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
    font-size: 9.5pt;
    background: #f1f5f9;
    padding: 0.5mm 1.2mm;
    border-radius: 2pt;
    color: #1e293b;
  }

  .md-typeset pre,
  .md-typeset pre > code {
    font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
    font-size: 9pt;
    line-height: 1.45;
    background: #f8fafc;
    border: 0.4pt solid #cbd5e1;
    border-radius: 3pt;
    padding: 2.5mm 3mm;
    page-break-inside: avoid;
    break-inside: avoid;
    overflow: hidden;
    white-space: pre-wrap;
    word-wrap: break-word;
  }
  .md-typeset pre > code {
    border: none;
    padding: 0;
    background: transparent;
  }

  /* ========================================================================
     LISTS
     ======================================================================== */

  .md-typeset ul,
  .md-typeset ol {
    margin: 0 0 3mm 6mm;
    padding: 0;
  }
  .md-typeset li {
    margin: 0 0 1mm 0;
  }
  .md-typeset li > p {
    margin: 0 0 1mm 0;
  }

  /* ========================================================================
     TABLES
     ======================================================================== */

  .md-typeset table:not([class]),
  .md-typeset table {
    width: 100%;
    border-collapse: collapse;
    font-size: 9.5pt;
    line-height: 1.4;
    margin: 4mm 0;
    page-break-inside: avoid;
    break-inside: avoid;
    border: 0.4pt solid #cbd5e1;
  }
  .md-typeset table th {
    background: #1e1b4b;
    color: #ffffff;
    font-family: "Inter", sans-serif;
    font-weight: 600;
    font-size: 9.5pt;
    text-align: left;
    padding: 2mm 3mm;
    border: 0.4pt solid #1e1b4b;
  }
  .md-typeset table td {
    padding: 2mm 3mm;
    border: 0.4pt solid #cbd5e1;
    vertical-align: top;
  }
  .md-typeset table tr:nth-child(even) td {
    background: #f8fafc;
  }

  /* ========================================================================
     ADMONITIONS
     ======================================================================== */

  .md-typeset .admonition,
  .md-typeset details {
    border: 0.4pt solid #cbd5e1;
    border-left: 3pt solid #7c3aed;
    border-radius: 3pt;
    background: #f8fafc;
    padding: 3mm 4mm;
    margin: 4mm 0;
    page-break-inside: avoid;
    break-inside: avoid;
    box-shadow: none;
    font-size: 10pt;
  }
  .md-typeset .admonition-title,
  .md-typeset summary {
    font-family: "Inter", sans-serif;
    font-weight: 600;
    color: #1e1b4b;
    margin: 0 0 2mm 0;
    padding: 0;
    background: transparent !important;
    font-size: 10.5pt;
  }
  .md-typeset .admonition-title::before,
  .md-typeset summary::before {
    display: none;
  }
  .md-typeset .admonition.note,
  .md-typeset details.note { border-left-color: #2563eb; }
  .md-typeset .admonition.warning,
  .md-typeset details.warning { border-left-color: #d97706; }
  .md-typeset .admonition.danger,
  .md-typeset details.danger { border-left-color: #dc2626; }
  .md-typeset .admonition.tip,
  .md-typeset details.tip,
  .md-typeset .admonition.success,
  .md-typeset details.success { border-left-color: #059669; }
  .md-typeset .admonition.abstract,
  .md-typeset details.abstract { border-left-color: #7c3aed; }

  /* ========================================================================
     IMAGES & MERMAID DIAGRAMS
     ======================================================================== */

  .md-typeset img,
  .md-typeset svg,
  .mermaid svg {
    max-width: 100%;
    /* Cap any single image/diagram to the available A4 content area so
       oversize SVGs (architecture diagrams) scale down rather than split
       across pages. With our 26mm/22mm vertical margins, the body is
       ~249mm tall; we leave a small buffer so adjacent text on the same
       page does not push the image over the edge. */
    max-height: 230mm;
    height: auto;
    object-fit: contain;
    page-break-inside: avoid;
    break-inside: avoid;
  }
  .md-typeset img.hero-img {
    width: 100%;
    max-height: 230mm;
    margin: 4mm 0;
    border-radius: 3pt;
    object-fit: contain;
  }
  /* When a paragraph contains only an image, give the image its own
     page-fit envelope so a tall figure starts on a fresh page rather
     than getting pushed past the bottom margin. */
  .md-typeset p > img:only-child,
  .md-typeset p > picture:only-child > img {
    display: block;
    margin-left: auto;
    margin-right: auto;
  }
  .mermaid {
    text-align: center;
    margin: 4mm auto;
    page-break-inside: avoid;
    break-inside: avoid;
  }

  /* ========================================================================
     TABLE OF CONTENTS (mkdocs-with-pdf)
     ======================================================================== */

  #doc-toc {
    page-break-before: always;
  }
  #doc-toc h1 {
    font-family: "Inter", sans-serif;
    font-size: 22pt;
    font-weight: 700;
    color: #1e1b4b;
    border-bottom: 1.5pt solid #7c3aed;
    padding-bottom: 3mm;
    margin: 0 0 8mm 0;
    page-break-before: avoid;
    break-before: avoid;
  }
  #doc-toc nav,
  #doc-toc ul,
  #doc-toc ol {
    list-style: none;
    margin: 0;
    padding: 0;
  }
  #doc-toc li {
    margin: 0;
    padding: 0;
  }
  #doc-toc a {
    display: block;
    text-decoration: none;
    color: #1e293b;
    padding: 1mm 0;
  }
  #doc-toc a::after {
    content: leader('. ') target-counter(attr(href), page);
    font-family: "Inter", sans-serif;
    font-weight: 500;
    color: #64748b;
  }

  /* H1 TOC entries: bold, primary color */
  #doc-toc > nav > ul > li > a,
  #doc-toc > ul > li > a {
    font-family: "Inter", sans-serif;
    font-weight: 700;
    font-size: 11pt;
    color: #1e1b4b;
    padding: 2mm 0 1mm 0;
    margin-top: 3mm;
    border-top: 0.3pt solid #e2e8f0;
  }
  /* H2 TOC entries: regular, indented */
  #doc-toc ul ul li a {
    font-family: "Source Serif 4", Georgia, serif;
    font-weight: 400;
    font-size: 10pt;
    color: #1e293b;
    padding-left: 6mm;
  }
  /* H3 TOC entries: smaller, more indented, muted */
  #doc-toc ul ul ul li a {
    font-size: 9.5pt;
    color: #475569;
    padding-left: 12mm;
  }

  /* ========================================================================
     SUPPRESS WEB-ONLY UI
     ======================================================================== */

  .md-header,
  .md-tabs,
  .md-sidebar,
  .md-footer,
  .md-search,
  .md-source,
  .md-top,
  .md-content__button,
  .md-skip,
  .md-clipboard,
  .md-dialog,
  .md-feedback,
  .md-banner,
  .nexus-nav-toggle,
  .nexus-pdf-bar,
  .headerlink,
  .twemoji {
    display: none !important;
  }

  /* Flatten Material's flex/grid/sticky screen layout — required because
     the theme uses display:flex, position:sticky, transforms, and
     height:100% on layout shells, which paged-media renderers
     (WeasyPrint) interpret as a single-page viewport, truncating
     overflow content. */
  html,
  body {
    height: auto !important;
    min-height: 0 !important;
    max-height: none !important;
    overflow: visible !important;
    position: static !important;
  }
  .md-container,
  .md-main,
  .md-main__inner,
  .md-content,
  .md-content__inner,
  .md-grid,
  article,
  main {
    display: block !important;
    height: auto !important;
    min-height: 0 !important;
    max-height: none !important;
    max-width: 100% !important;
    width: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
    overflow: visible !important;
    position: static !important;
    transform: none !important;
    flex: none !important;
  }
}