/**
 * NavigNine theme for reveal.js. This is an adaptation of the "Black theme" By Hakim El Hattab, http://hakim.se
 * By NavigNine
 */

 
@import url(./fonts/source-sans-pro/source-sans-pro.css);

/* ─────────────────────────────────────────────
   1)  VARIABLE BRIDGE
   ─────────────────────────────────────────── */
:root {
  /* Base */
  --r-background-color: var(--bg-primary);
  --r-main-color:       var(--text-primary);

  /* Typography */
  --r-main-font:        Source Sans Pro, Helvetica, sans-serif;
  --r-main-font-size:   42px;

  /* Spacing */
  --r-block-margin:   20px;
  --r-heading-margin: 0 0 20px 0;

  /* Headings */
  --r-heading-font:         Source Sans Pro, Helvetica, sans-serif;
  --r-heading-color:        var(--text-primary);
  --r-heading-line-height:  1.2;
  --r-heading-letter-spacing: normal;
  --r-heading-text-transform: uppercase;
  --r-heading-text-shadow: none;
  --r-heading-font-weight:  600;
  --r-heading1-text-shadow: none;

  --r-heading1-size: 2.5em;
  --r-heading2-size: 1.6em;
  --r-heading3-size: 1.3em;
  --r-heading4-size: 1em;

  /* Code */
  --r-code-font: monospace;

  /* Links */
  --r-link-color:       var(--accent-primary);
  --r-link-color-dark:  color-mix(in oklab, var(--accent-primary) 80%, black);
  --r-link-color-hover: color-mix(in oklab, var(--accent-primary) 70%, white);

  /* Text selection */
  --r-selection-background-color: color-mix(in srgb, var(--accent-primary) 75%, transparent);
  --r-selection-color:            var(--text-primary);

  /* Overlay helper (RGB lists – must stay numeric) */
  --r-overlay-element-bg-color: 240, 240, 240;
  --r-overlay-element-fg-color: 0, 0, 0;
}

/* ─────────────────────────────────────────────
   2)  GLOBAL STYLES
   ─────────────────────────────────────────── */
.reveal-viewport {
  background: var(--r-background-color);
}

.reveal {
  font-family: var(--r-main-font);
  font-size:   var(--r-main-font-size);
  font-weight: normal;
  color:       var(--r-main-color);
}

.reveal ::selection,
.reveal ::-moz-selection {
  color:            var(--r-selection-color);
  background-color: var(--r-selection-background-color);
  text-shadow: none;
}

/* Dedicated rule for slides that deliberately use a light bg */
section.has-light-background,
section.has-light-background h1,
section.has-light-background h2,
section.has-light-background h3,
section.has-light-background h4,
section.has-light-background h5,
section.has-light-background h6 {
  color: var(--text-primary);
}

.reveal .slides section,
.reveal .slides section > section {
  line-height: 1.3;
  font-weight: inherit;
}

/* evenly align all elements in a slide */
.reveal.center, .reveal.center .slides, .reveal.center .slides section {
    min-height: 0 !important;
    display: flex !important;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: space-evenly;
    align-items: center;
    gap: 1rem;
    row-gap: normal;
    align-content: center;
}

/* ─────────────────────────────────────────────
   3)  HEADERS
   ─────────────────────────────────────────── */
.reveal h1,
.reveal h2,
.reveal h3,
.reveal h4,
.reveal h5,
.reveal h6 {
  margin:          var(--r-heading-margin);
  color:           var(--r-heading-color);
  font-family:     var(--r-heading-font);
  font-weight:     var(--r-heading-font-weight);
  line-height:     var(--r-heading-line-height);
  letter-spacing:  var(--r-heading-letter-spacing);
  text-transform:  var(--r-heading-text-transform);
  text-shadow:     var(--r-heading-text-shadow);
  word-wrap: break-word;
}

.reveal h1 { font-size: var(--r-heading1-size); text-shadow: var(--r-heading1-text-shadow); }
.reveal h2 { font-size: var(--r-heading2-size); }
.reveal h3 { font-size: var(--r-heading3-size); }
.reveal h4 { font-size: var(--r-heading4-size); }

/* ─────────────────────────────────────────────
   4)  PARAGRAPHS & INLINE
   ─────────────────────────────────────────── */
.reveal p {
  margin: var(--r-block-margin) 0;
  line-height: 1.3;
}

/* Remove trailing margin after headings */
.reveal h1:last-child,
.reveal h2:last-child,
.reveal h3:last-child,
.reveal h4:last-child,
.reveal h5:last-child,
.reveal h6:last-child {
  margin-bottom: 0;
}

/* Media should never exceed slide bounds */
.reveal img,
.reveal video,
.reveal iframe {
  max-width: 95%;
  max-height: 95%;
  border-radius: 12px;
  border-radius: var(--border-radius);
}

.reveal strong,
.reveal b { font-weight: bold; }

.reveal em { font-style: italic; }

/* ─────────────────────────────────────────────
   5)  LISTS
   ─────────────────────────────────────────── */
.reveal ol,
.reveal dl,
.reveal ul {
  display: inline-block;
  text-align: left;
  margin: 0 0 0 1em;
}

.reveal ol          { list-style-type: decimal; }
.reveal ul          { list-style-type: disc;    }
.reveal ul ul       { list-style-type: square;  }
.reveal ul ul ul    { list-style-type: circle;  }

.reveal ul ul,
.reveal ul ol,
.reveal ol ol,
.reveal ol ul {
  display: block;
  margin-left: 40px;
}

.reveal dt { font-weight: bold; }
.reveal dd { margin-left: 40px; }

/* ─────────────────────────────────────────────
   6)  BLOCKQUOTE & QUOTES
   ─────────────────────────────────────────── */
.reveal blockquote {
  display: block;
  position: relative;
  width: 70%;
  margin: var(--r-block-margin) auto;
  padding: 5px;
  font-style: italic;
  background: color-mix(in srgb, var(--text-primary) 5%, transparent);
  box-shadow: 0 0 2px color-mix(in srgb, black 20%, transparent);
}

.reveal blockquote p:first-child,
.reveal blockquote p:last-child { display: inline-block; }

.reveal q { font-style: italic; }

/* ─────────────────────────────────────────────
   7)  CODE
   ─────────────────────────────────────────── */
.reveal pre {
  display: block;
  position: relative;
  width: 90%;
  margin: var(--r-block-margin) auto;
  text-align: left;
  font-size: 0.55em;
  font-family: var(--r-code-font);
  line-height: 1.2em;
  word-wrap: break-word;
  box-shadow: 0 5px 15px color-mix(in srgb, black 15%, transparent);
}

.reveal code {
  font-family: var(--r-code-font);
  text-transform: none;
  tab-size: 2;
}

.reveal pre code {
  display: block;
  padding: 5px;
  overflow: auto;
  max-height: 400px;
  word-wrap: normal;
}

.reveal .code-wrapper { white-space: normal; }
.reveal .code-wrapper code { white-space: pre; }

/* ─────────────────────────────────────────────
   8)  TABLES
   ─────────────────────────────────────────── */
.reveal table {
  margin: auto;
  border-collapse: collapse;
  border-spacing: 0;
}

.reveal table th { font-weight: bold; }

.reveal table th,
.reveal table td {
  text-align: left;
  padding: .2em .5em;
  border-bottom: 1px solid var(--border-primary);
}

.reveal table th[align=center],
.reveal table td[align=center] { text-align: center; }

.reveal table th[align=right],
.reveal table td[align=right] { text-align: right; }

.reveal table tbody tr:last-child th,
.reveal table tbody tr:last-child td { border-bottom: none; }

/* ─────────────────────────────────────────────
   9)  MISC INLINE
   ─────────────────────────────────────────── */
.reveal sup { vertical-align: super; font-size: smaller; }
.reveal sub { vertical-align: sub;   font-size: smaller; }

.reveal small {
  display: inline-block;
  font-size: 0.6em;
  line-height: 1.2em;
  vertical-align: top;
}
.reveal small * { vertical-align: top; }

.reveal img { margin: var(--r-block-margin) 0; }

/* ─────────────────────────────────────────────
   10) LINKS
   ─────────────────────────────────────────── */
.reveal a {
  color: var(--r-link-color);
  text-decoration: none;
  transition: color var(--transition-speed);
}

.reveal a:hover {
  color: var(--r-link-color-hover);
  text-shadow: none;
  border: none;
}

.reveal .roll span:after {
  color: var(--text-primary);
  background: var(--r-link-color-dark);
}

/* ─────────────────────────────────────────────
   11) FRAME HELPER
   ─────────────────────────────────────────── */
.reveal .r-frame {
  border: 4px solid var(--text-primary);
  box-shadow: var(--shadow);
}

.reveal a .r-frame { transition: all var(--transition-speed) linear; }

.reveal a:hover .r-frame {
  border-color: var(--r-link-color);
  box-shadow: var(--shadow-hover);
}

/* ─────────────────────────────────────────────
   12) NAVIGATION CONTROLS
   ─────────────────────────────────────────── */
.reveal .controls { color: var(--r-link-color); }

/* ─────────────────────────────────────────────
   13) PROGRESS BAR
   ─────────────────────────────────────────── */
.reveal .progress {
  background: color-mix(in srgb, black 20%, transparent);
  color: var(--r-link-color);
}

/* ─────────────────────────────────────────────
   14) PRINT
   ─────────────────────────────────────────── */
@media print {
  /* Force a light scheme for paper */
  :root { color-scheme: light; }

  .backgrounds { background-color: var(--r-background-color); }
}