/*********************************************
 * PRESENTERM-INSPIRED TERMINAL THEME
 * Based on presenterm's terminal-dark aesthetic
 * Dark terminal presentation theme for Reveal.js
 *********************************************/

/* Import terminal-style fonts */
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;600;700&family=Fira+Code:wght@400;600&display=swap');

/*********************************************
 * GLOBAL STYLES
 * Color palette inspired by presenterm's terminal-dark and base16-eighties
 *********************************************/

:root {
  /* Background and text - presenterm terminal-dark style */
  --terminal-bg: #040312;
  --terminal-text: #e6e6e6;
  --terminal-bg-elevated: #1a1a2e;

  /* Base16-eighties dark palette for syntax */
  --terminal-green: #66ff66;
  --terminal-cyan: #00ffff;
  --terminal-yellow: #ffff00;
  --terminal-orange: #ff8c00;
  --terminal-pink: #ff00ff;
  --terminal-purple: #bd93f9;
  --terminal-red: #ff6b6b;
  --terminal-blue: #6b9eff;
  --terminal-gray: #999999;
  --terminal-dark-gray: #393952;
}

.reveal-viewport {
  background: var(--terminal-bg);
  background-image: none;
}

.reveal {
  font-family: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
  font-size: 20px;
  font-weight: 400;
  color: var(--terminal-text);
}

/*********************************************
 * HEADERS
 *********************************************/

.reveal h1,
.reveal h2,
.reveal h3,
.reveal h4,
.reveal h5,
.reveal h6 {
  margin: 0 0 20px 0;
  color: var(--terminal-cyan);
  font-family: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace !important;
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: 0;
  text-transform: none;
  text-shadow: 0 0 10px rgba(0, 215, 255, 0.5);
  word-wrap: break-word;
}

/* H1 - Cyan with block prefix (presenterm style: ██) */
.reveal h1::before {
  content: "██ ";
  color: var(--terminal-cyan);
  margin-right: 0.3em;
  font-weight: 700;
}

.reveal h1 {
  font-size: 1.6em;
  border-bottom: none;
  padding: 20px 0;
  color: var(--terminal-cyan);
  text-align: center;
}

/* H2 - Magenta/Yellow for slide titles (presenterm style: ▓▓▓) */
.reveal h2::before {
  content: "▓▓▓ ";
  color: var(--terminal-pink);
  margin-right: 0.3em;
  font-weight: 700;
}

.reveal h2 {
  font-size: 1.5em;
  color: var(--terminal-yellow);
  text-shadow: none;
  text-align: left;
  padding: 15px 0;
}

/* H3 - Red with block prefix (presenterm style: ▒▒▒▒) */
.reveal h3::before {
  content: "▒▒▒▒ ";
  color: var(--terminal-red);
  margin-right: 0.3em;
  font-weight: 600;
}

.reveal h3 {
  font-size: 1.2em;
  color: var(--terminal-red);
  text-shadow: none;
}

/* H4 - Blue with block prefix (presenterm style: ░░░░░) */
.reveal h4::before {
  content: "░░░░░ ";
  color: var(--terminal-blue);
  margin-right: 0.3em;
}

.reveal h4 {
  font-size: 1.1em;
  color: var(--terminal-blue);
}

/*********************************************
 * TEXT ELEMENTS
 *********************************************/

.reveal p {
  margin: 20px 0;
  line-height: 1.6;
}

.reveal strong,
.reveal b {
  font-weight: 700;
  color: var(--terminal-yellow);
}

.reveal em,
.reveal i {
  font-style: italic;
  color: var(--terminal-cyan);
}

.reveal a {
  color: var(--terminal-blue);
  text-decoration: underline;
  transition: color 0.15s ease;
}

.reveal a:hover {
  color: var(--terminal-cyan);
  text-shadow: 0 0 10px rgba(0, 215, 255, 0.5);
}

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

/* Code blocks - presenterm style with base16-eighties.dark theme */
.reveal pre {
  display: block;
  position: relative;
  width: 90%;
  margin: 20px auto;
  text-align: left;
  font-size: 0.7em;
  font-family: 'Fira Code', monospace;
  line-height: 1.4em;
  word-wrap: break-word;
  background-color: var(--terminal-bg-elevated);
  border: 1px solid var(--terminal-dark-gray);
  border-radius: 4px;
  box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.5);
}

.reveal code {
  font-family: 'Fira Code', monospace;
  text-transform: none;
  background-color: transparent;
  padding: 0;
  border-radius: 0;
  color: var(--terminal-text);
}

/* Inline code - green like presenterm */
.reveal p code,
.reveal li code {
  background-color: var(--terminal-bg-elevated);
  color: var(--terminal-green);
  padding: 2px 8px;
  border-radius: 3px;
  font-size: 0.9em;
  font-weight: normal;
}

.reveal pre code {
  display: block;
  padding: 20px 30px;
  overflow: auto;
  max-height: 600px;
  word-wrap: normal;
  background-color: transparent;
  color: var(--terminal-text);
}

/*********************************************
 * LISTS
 *********************************************/

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

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

.reveal ul li::before {
  content: "▸ ";
  color: var(--terminal-green);
  font-weight: bold;
  display: inline-block;
  width: 1em;
  margin-left: -1em;
}

.reveal ol {
  list-style-type: decimal;
  color: var(--terminal-cyan);
}

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

.reveal li {
  margin: 10px 0;
}

/*********************************************
 * TABLES - Terminal Grid Style
 *********************************************/

.reveal table {
  margin: auto;
  border-collapse: collapse;
  border-spacing: 0;
  background-color: var(--terminal-bg-elevated);
  border: 1px solid var(--terminal-dark-gray);
  font-size: 0.85em;
}

.reveal table th {
  font-weight: 600;
  background-color: var(--terminal-bg-elevated);
  color: var(--terminal-yellow);
  border: 1px solid var(--terminal-dark-gray);
  padding: 12px;
}

.reveal table td {
  border: 1px solid var(--terminal-dark-gray);
  padding: 10px;
  color: var(--terminal-text);
}

.reveal table tr:nth-child(even) {
  background-color: rgba(255, 255, 255, 0.03);
}

/*********************************************
 * QUOTES - Presenterm Style
 * Uses yellow bar with ▍ prefix
 *********************************************/

.reveal blockquote {
  display: block;
  position: relative;
  width: 80%;
  margin: 20px auto;
  padding: 15px 20px 15px 30px;
  background: #000000;
  border-left: 4px solid var(--terminal-yellow);
  font-style: normal;
  color: var(--terminal-text);
  line-height: 1.5;
}

.reveal blockquote::before {
  content: "";
  /* Removed ▍ character to avoid double yellow line */
}

.reveal blockquote p {
  margin: 0;
  line-height: 1.5;
}

/*********************************************
 * CALLOUT BOXES - Presenterm GitHub Alert Style
 * Color-coded borders and backgrounds
 *********************************************/

.callout {
  margin: 15px 0;
  padding: 15px 20px;
  border-left: 4px solid;
  background-color: rgba(255, 255, 255, 0.05);
  border-radius: 4px;
  font-family: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace !important;
  line-height: 1.5;
  font-size: 0.95em !important;
}

/* Note - Blue (presenterm blue) */
.callout-note {
  border-left-color: var(--terminal-blue);
  background-color: rgba(107, 158, 255, 0.1);
}

.callout-note .callout-title {
  color: var(--terminal-blue);
  font-weight: 600;
  font-family: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace !important;
  margin: 0 0 8px 0;
  font-size: 1em !important;
}

/* Tip - Green (presenterm green) */
.callout-tip {
  border-left-color: var(--terminal-green);
  background-color: rgba(102, 255, 102, 0.1);
}

.callout-tip .callout-title {
  color: var(--terminal-green);
  font-weight: 600;
  font-family: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace !important;
  margin: 0 0 8px 0;
  font-size: 1em !important;
}

/* Warning - Yellow (presenterm yellow) */
.callout-warning {
  border-left-color: var(--terminal-yellow);
  background-color: rgba(255, 255, 0, 0.1);
}

.callout-warning .callout-title {
  color: var(--terminal-yellow);
  font-weight: 600;
  font-family: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace !important;
  margin: 0 0 8px 0;
  font-size: 1em !important;
}

/* Important/Caution - Red (presenterm red) */
.callout-important,
.callout-caution {
  border-left-color: var(--terminal-red);
  background-color: rgba(255, 107, 107, 0.1);
}

.callout-important .callout-title,
.callout-caution .callout-title {
  color: var(--terminal-red);
  font-weight: 600;
  font-family: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace !important;
  margin: 0 0 8px 0;
  font-size: 1em !important;
}

/* Reduce spacing inside callout content */
.callout p {
  margin: 8px 0;
  line-height: 1.5;
}

.callout p:first-child {
  margin-top: 0;
}

.callout p:last-child {
  margin-bottom: 0;
}

/* Compact spacing for callout body */
.callout-body {
  margin: 0;
  padding: 0;
}

.callout-content {
  font-size: 0.95em !important;
}

/*********************************************
 * IMAGES
 *********************************************/

.reveal section img {
  margin: 15px 0;
  background: transparent;
  border: 2px solid var(--terminal-dark-gray);
  box-shadow: 0 0 15px rgba(0, 0, 0, 0.5);
}

.reveal section img.terminal-border {
  border: 2px solid var(--terminal-green);
  box-shadow: 0 0 30px rgba(0, 255, 0, 0.3);
}

/*********************************************
 * SLIDE BACKGROUNDS
 *********************************************/

.reveal .slide-background {
  background-color: var(--terminal-bg);
}

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

.reveal .progress {
  background: rgba(255, 255, 255, 0.1);
  color: var(--terminal-cyan);
  height: 3px;
}

.reveal .progress span {
  background: var(--terminal-cyan);
  box-shadow: 0 0 10px var(--terminal-cyan);
}

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

.reveal .slide-number {
  color: var(--terminal-gray);
  background-color: transparent;
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  padding: 5px 10px;
  border: none;
}

/*********************************************
 * CONTROLS
 *********************************************/

.reveal .controls {
  color: var(--terminal-blue);
}

.reveal .controls button {
  color: var(--terminal-blue);
}

.reveal .controls button:hover {
  color: var(--terminal-cyan);
}

/*********************************************
 * CURSOR EFFECT (Terminal-style)
 *********************************************/

.terminal-cursor::after {
  content: "▋";
  animation: blink 1s step-end infinite;
  color: var(--terminal-green);
}

@keyframes blink {
  50% {
    opacity: 0;
  }
}

/*********************************************
 * INCREMENTAL LISTS
 *********************************************/

.reveal .fragment {
  opacity: 0.3;
}

.reveal .fragment.visible {
  opacity: 1;
}

/*********************************************
 * TITLE SLIDE
 *********************************************/

.reveal .title-slide h1 {
  font-family: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace !important;
  font-size: 2em;
  font-weight: 400;
  color: var(--terminal-cyan);
  text-shadow: 0 0 20px rgba(0, 215, 255, 0.6);
  border-bottom: 3px solid var(--terminal-cyan);
  padding-bottom: 0.5em;
}

.reveal .title-slide .author {
  font-family: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace !important;
  color: var(--terminal-cyan);
  font-size: 1em;
  font-weight: 400;
  margin-top: 1em;
}

.reveal .title-slide .date {
  font-family: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace !important;
  color: var(--terminal-gray);
  font-size: 0.8em;
  font-weight: 400;
  margin-top: 0.5em;
}

/*********************************************
 * CUSTOM TERMINAL PROMPTS
 *********************************************/

.terminal-prompt::before {
  content: "$ ";
  color: var(--terminal-green);
  font-weight: bold;
}

.terminal-output::before {
  content: "> ";
  color: var(--terminal-cyan);
}

/*********************************************
 * SYNTAX HIGHLIGHTING COLORS
 *********************************************/

.reveal pre code .hljs-comment {
  color: var(--terminal-gray);
}

.reveal pre code .hljs-keyword {
  color: var(--terminal-pink);
}

.reveal pre code .hljs-string {
  color: var(--terminal-yellow);
}

.reveal pre code .hljs-number {
  color: var(--terminal-purple);
}

.reveal pre code .hljs-function {
  color: var(--terminal-green);
}

.reveal pre code .hljs-variable {
  color: var(--terminal-cyan);
}

/*********************************************
 * MATH FORMULAS (MathJax/KaTeX)
 *********************************************/

/* Reset font inheritance for MathJax containers only - let MathJax handle internals */
.reveal mjx-container {
  font-family: initial !important;
}

.reveal .MathJax {
  font-family: initial !important;
}

/*********************************************
 * COLUMN LAYOUTS WITH DIVIDERS
 *********************************************/

/* Add vertical partition line to columns */
.reveal .columns {
  display: flex;
  gap: 30px;
}

.reveal .column {
  flex: 1;
}

/* Column with right border (divider) */
.reveal .column.divider {
  border-right: 2px solid var(--terminal-dark-gray);
  padding-right: 20px;
  margin-right: 10px;
}

/* Alternative: add divider class to parent columns */
.reveal .columns.divider .column:not(:last-child) {
  border-right: 2px solid var(--terminal-dark-gray);
  padding-right: 20px;
  margin-right: 10px;
}