custom.scss

/*-- scss:defaults --*/

// Fonts
$font-family-sans-serif: "Source Sans Pro", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
$font-family-monospace: "Fira Code", "Source Code Pro", Consolas, Monaco, monospace;
$presentation-font-size-root: 42px;
$presentation-line-height: 1.4;

// Color palette - Professional neutral with subtle blue accent
$body-bg: #fafafa;
$body-color: #2d3436;
$link-color: #2563eb;
$link-color-hover: #1d4ed8;
$selection-bg: #3b82f6;
$selection-color: #ffffff;

// Headings
$presentation-heading-font: "Source Sans Pro", "Segoe UI", Roboto, sans-serif;
$presentation-heading-color: #1a1a2e;
$presentation-heading-text-transform: none;
$presentation-heading-font-weight: 600;
$presentation-h1-font-size: 2.2em;
$presentation-h2-font-size: 1.6em;
$presentation-h3-font-size: 1.3em;

// Code blocks
$code-block-bg: white;
$code-block-border-color: #334155;

/*-- scss:rules --*/

// Title slide styling
#title-slide {
  text-align: left;
  padding-left: 60px;

  h1.title {
    color: #5d6674;
    font-size: 2.0em;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 0.5em;
    text-shadow: none;
  }

  p.author {
    color: #94a3b8;
    font-size: 1.1em;
    font-weight: 400;
    margin-top: 1em;
  }

  p.date {
    color: #94a3b8;
    font-size: 0.9em;
  }
}

// Regular slides
.reveal .slides section {
  text-align: left;
}

// Headings with subtle accent line
.reveal h2 {
  border-bottom: 3px solid #3b82f6;
  padding-bottom: 0.3em;
  margin-bottom: 0.8em;
}

.reveal h3 {
  color: #475569;
}

// Section title slides (level 1 headers)
.reveal section[data-background-color] h1,
.reveal .slide-background-content h1 {
  color: #ffffff;
}

// Lists
.reveal ul, .reveal ol {
  margin-left: 1em;
}

.reveal li {
  margin-bottom: 0.5em;
  line-height: 1.5;
}

.reveal ul li::marker {
  color: #3b82f6;
}

// Tables
.reveal table {
  margin: 1em auto;
  border-collapse: collapse;
  font-size: 0.85em;
}

.reveal table th {
  background-color: #1e293b;
  color: #ffffff;
  padding: 0.8em 1em;
  font-weight: 600;
  border: none;
}

.reveal table td {
  padding: 0.6em 1em;
  border-bottom: 1px solid #e2e8f0;
}

.reveal table tr:nth-child(even) {
  background-color: #f1f5f9;
}

.reveal table tr:hover {
  background-color: #e2e8f0;
}

// Callouts
.reveal .callout {
  margin: 1em 0;
  border-radius: 6px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.reveal .callout-note {
  border-left: 4px solid #3b82f6;
  background-color: #eff6ff;
}

.reveal .callout-tip {
  border-left: 4px solid #10b981;
  background-color: #ecfdf5;
}

.reveal .callout-warning {
  border-left: 4px solid #f59e0b;
  background-color: #fffbeb;
}

.reveal .callout-important {
  border-left: 4px solid #ef4444;
  background-color: #fef2f2;
}

// Code styling
.reveal pre {
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  font-size: 0.75em;
}

.reveal code {
  font-family: $font-family-monospace;
  background-color: #e2e8f0;
  padding: 0.1em 0.4em;
  border-radius: 4px;
  font-size: 0.9em;
}

.reveal pre code {
  background-color: transparent;
  padding: 0;
}

// Math equations
.reveal .math {
  color: #1e293b;
}

// Columns
.reveal .columns {
  margin-top: 1em;
}

// Footer and slide number
.reveal .footer {
  font-size: 0.5em;
  color: #64748b;
}

.reveal .slide-number {
  font-size: 0.6em;
  color: #64748b;
  background-color: transparent;
}

// Progress bar
.reveal .progress {
  height: 4px;
  color: #3b82f6;
}

// Aside/footnotes
.reveal aside {
  font-size: 0.7em;
  color: #64748b;
  font-style: italic;
}

// Block quotes
.reveal blockquote {
  border-left: 4px solid #cbd5e1;
  padding-left: 1em;
  font-style: italic;
  color: #475569;
  background-color: #f8fafc;
  padding: 0.8em 1em;
  border-radius: 0 6px 6px 0;
}

// Images
.reveal img {
  border-radius: 4px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

// Stronger emphasis
.reveal strong {
  color: #1e293b;
  font-weight: 700;
}

// Section slides (# headers become section dividers)
.reveal section.center h1 {
  font-size: 2.5em;
  color: #1a1a2e;
}

// Links
.reveal a {
  text-decoration: none;
  border-bottom: 1px dotted $link-color;
}

.reveal a:hover {
  border-bottom-style: solid;
}

// Responsive adjustments for figures
.reveal figure {
  margin: 1em 0;
}

.reveal figcaption {
  font-size: 0.7em;
  color: #64748b;
  text-align: center;
  margin-top: 0.5em;
}

// Speaker notes styling (visible during presentation)
.reveal .speaker-notes {
  font-family: $font-family-sans-serif;
  font-size: 1em;
  line-height: 1.6;
}

// Transition section styling for # headings
.reveal section[data-transition] {
  background-color: #1a1a2e;

  h1 {
    color: #ffffff;
    text-align: center;
  }
}

// References section
#refs {
  font-size: 0.7em;

  p {
    margin-bottom: 0.5em;
    text-indent: -2em;
    padding-left: 2em;
  }
}