/*
 * Phorma Scientific - Reveal.js Theme
 * Based on Phorma Scientific brand identity
 * Light and Dark theme variants
 */

/* ==========================================
   THEME VARIABLES
   ========================================== */

:root {
  /* Light Theme (default) */
  --r-background-color: #FFFFFF;
  --r-main-color: #000000;
  --r-heading-color: #000000;
  --r-link-color: #000000;
  --r-link-color-hover: #666666;
  --r-selection-background-color: #000000;
  --r-selection-color: #FFFFFF;

  /* Phorma brand colors */
  --color-grey: #E5E5E5;
  --color-grey-dark: #333333;
  --color-muted: #666666;
  --color-border: #000000;

  /* Typography */
  --r-main-font: 'Inter', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
  --r-heading-font: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
  --r-code-font: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;

  --r-main-font-size: 38px;
  --r-heading-letter-spacing: -0.02em;
  --r-heading-text-transform: none;
  --r-heading-font-weight: 700;

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

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
}

/* Dark Theme */
[data-theme="dark"] {
  --r-background-color: #0a0a0a;
  --r-main-color: #FFFFFF;
  --r-heading-color: #FFFFFF;
  --r-link-color: #FFFFFF;
  --r-link-color-hover: #999999;
  --r-selection-background-color: #FFFFFF;
  --r-selection-color: #000000;

  --color-grey: #1a1a1a;
  --color-grey-dark: #cccccc;
  --color-muted: #999999;
  --color-border: #FFFFFF;
}

/* ==========================================
   BASE STYLES
   ========================================== */

.reveal {
  font-family: var(--r-main-font);
  font-size: var(--r-main-font-size);
  font-weight: 400;
  color: var(--r-main-color);
}

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

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

.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);
  letter-spacing: var(--r-heading-letter-spacing);
  line-height: 1.2;
  text-transform: var(--r-heading-text-transform);
  word-wrap: break-word;
}

.reveal h1 {
  font-size: 2.5em;
}

.reveal h2 {
  font-size: 1.8em;
}

.reveal h3 {
  font-size: 1.4em;
}

.reveal h4 {
  font-size: 1.2em;
}

.reveal p {
  margin: var(--r-block-margin) 0;
  line-height: 1.6;
}

.reveal strong,
.reveal b {
  font-weight: 700;
}

.reveal em {
  font-style: italic;
}

/* ==========================================
   LINKS
   ========================================== */

.reveal a {
  color: var(--r-link-color);
  text-decoration: none;
  transition: opacity var(--transition-fast);
  border-bottom: 1px solid var(--color-border);
}

.reveal a:hover {
  color: var(--r-link-color-hover);
  opacity: 0.6;
}

/* ==========================================
   CODE BLOCKS
   ========================================== */

/* Remove ALL borders and backgrounds from pre elements */
.reveal pre,
.reveal pre.code-wrapper,
.reveal div.code-wrapper pre,
.reveal section > pre,
.reveal .fragment > pre,
.reveal .slides section pre {
  display: block;
  position: relative;
  width: 100%;
  margin: var(--r-block-margin) auto;
  text-align: left;
  font-size: 0.55em;
  font-family: var(--r-code-font);
  line-height: 1.4;
  word-wrap: break-word;
  box-shadow: none !important;
  border: none !important;
  background: transparent !important;
  padding: 0 !important;
}

/* Inline code styling */
.reveal code {
  font-family: var(--r-code-font);
  font-size: 0.9em;
  background: var(--color-grey);
  padding: 0.125rem 0.375rem;
  border-radius: 2px;
  border: none;
}

/* Code blocks - THIS is where the border should be */
.reveal pre code,
.reveal pre > code,
.reveal section pre code,
.reveal .fragment pre code,
.reveal .slides section pre code {
  display: block;
  padding: 1em !important;
  overflow: auto;
  max-height: 600px;
  word-wrap: normal;
  background: var(--color-grey) !important;
  border-radius: 0;
  border: 2px solid var(--color-border) !important;
  box-shadow: none !important;
}

/* Remove borders from ANY wrapper divs or containers */
.reveal .code-wrapper,
.reveal div.code-wrapper,
.reveal pre[data-line-numbers],
.reveal .hljs,
.reveal .hljs-ln,
.reveal .hljs-ln-line,
.reveal table.hljs-ln {
  border: none !important;
  background: transparent !important;
  box-shadow: none !important;
}

/* Remove borders from line number elements */
.reveal .hljs-ln-numbers,
.reveal .hljs-ln-code,
.reveal .hljs-ln-n,
.reveal td.hljs-ln-numbers,
.reveal td.hljs-ln-code {
  border: none !important;
  background: transparent !important;
}

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

.reveal ul,
.reveal ol {
  display: block;
  text-align: left;
  margin: 0 0 0 1em;
  font-size: 0.9em;
}

.reveal ul {
  list-style-type: none;
}

.reveal ul li {
  position: relative;
  padding-left: 1.5em;
  margin-bottom: 0.5em;
}

.reveal ul li::before {
  content: '▸';
  position: absolute;
  left: 0;
  font-family: var(--r-code-font);
  color: var(--r-main-color);
}

.reveal ol {
  list-style-type: decimal;
}

/* ==========================================
   QUOTES
   ========================================== */

.reveal blockquote {
  display: block;
  position: relative;
  width: 90%;
  margin: var(--r-block-margin) auto;
  padding: 1em;
  font-style: italic;
  background: var(--color-grey);
  border-left: 4px solid var(--color-border);
  box-shadow: none;
}

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

/* ==========================================
   IMAGES
   ========================================== */

.reveal section img {
  margin: 15px 0px;
  background: transparent;
  border: none;
  box-shadow: none;
}

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

.reveal table {
  margin: auto;
  border-collapse: collapse;
  border-spacing: 0;
  border: 2px solid var(--color-border);
}

.reveal table th {
  font-weight: 700;
  font-family: var(--r-code-font);
  text-transform: uppercase;
  font-size: 0.8em;
  letter-spacing: 0.05em;
  background: var(--color-grey);
}

.reveal table th,
.reveal table td {
  text-align: left;
  padding: 0.5em 1em;
  border: 1px solid var(--color-border);
}

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

/* ==========================================
   UTILITY CLASSES
   ========================================== */

.reveal .text-mono {
  font-family: var(--r-code-font);
}

.reveal .text-muted {
  color: var(--color-muted);
}

.reveal .text-upper {
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Buttons/CTAs */
.reveal .btn {
  display: inline-block;
  font-family: var(--r-code-font);
  font-size: 0.7em;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.8em 1.5em;
  border: 2px solid var(--color-border);
  background: var(--r-background-color);
  color: var(--r-main-color);
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
}

.reveal .btn:hover {
  background: var(--r-main-color);
  color: var(--r-background-color);
  transform: translateY(-2px);
  box-shadow: 4px 4px 0 var(--color-border);
}

/* Highlight box */
.reveal .highlight-box {
  background: var(--color-grey);
  border-left: 4px solid var(--color-border);
  padding: 1em;
  margin: 1em 0;
}

/* ==========================================
   FRAGMENT STYLES
   ========================================== */

.reveal .fragment {
  transition: all var(--transition-base);
}

/* ==========================================
   PROGRESS BAR
   ========================================== */

.reveal .progress {
  background: var(--color-grey);
  color: var(--r-main-color);
  height: 3px;
}

.reveal .progress span {
  background: var(--r-main-color);
}

/* ==========================================
   CONTROLS
   ========================================== */

.reveal .controls {
  color: var(--r-main-color);
}

/* ==========================================
   SLIDE NUMBER
   ========================================== */

.reveal .slide-number {
  font-family: var(--r-code-font);
  font-size: 0.6em;
  color: var(--r-main-color);
  background-color: transparent;
}

/* ==========================================
   RESPONSIVE ADJUSTMENTS
   ========================================== */

@media screen and (max-width: 768px) {
  .reveal {
    font-size: 28px;
  }

  .reveal h1 {
    font-size: 2em;
  }

  .reveal h2 {
    font-size: 1.5em;
  }

  .reveal pre {
    font-size: 0.45em;
  }
}

/* ==========================================
   DARK/LIGHT THEME TOGGLE
   ========================================== */

.theme-toggle {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 100;
  padding: 0.5em 1em;
  background: var(--r-background-color);
  border: 2px solid var(--color-border);
  border-radius: 2px;
  cursor: pointer;
  font-family: var(--r-code-font);
  font-size: 0.8em;
  color: var(--r-main-color);
  transition: all var(--transition-fast);
}

.theme-toggle:hover {
  background: var(--r-main-color);
  color: var(--r-background-color);
  transform: rotate(180deg);
}

/* ==========================================
   THEME-DEPENDENT LOGOS
   ========================================== */

/* Light theme: show normal logo, hide inverted */
.reveal .light-theme-logo {
  display: block !important;
}

.reveal .dark-theme-logo {
  display: none !important;
}

/* Dark theme: hide normal logo, show inverted */
[data-theme="dark"] .reveal .light-theme-logo {
  display: none !important;
}

[data-theme="dark"] .reveal .dark-theme-logo {
  display: block !important;
}

/* ==========================================
   PRINT STYLES
   ========================================== */

@media print {
  .reveal .progress,
  .reveal .controls,
  .theme-toggle {
    display: none !important;
  }
}