/* Import fonts */
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=CMU+Serif:wght@400;700&display=swap');

/* Root variables for color scheme */
:root {
    --bg-dark: #0a0a0a;
    --text-light: #C5C7BC;
    --color-blue: #58c4dd;
    --color-yellow: #ffff00;
    --color-green: #83c167;
    --color-red: #fc6255;
    --color-purple: #c9a0dc;
}

/* Main reveal.js styling */
.reveal {
    font-family: 'CMU Serif', 'Times New Roman', serif;
    font-size: 32px;
    color: var(--text-light);
}

/* Background styling - Full viewport coverage */
.reveal {
    background-color: var(--bg-dark);
    background-image: url('image-main.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
}

.reveal .slides {
    background: transparent;
}

.reveal .slide-background {
    background-color: var(--bg-dark);
    background-image: url('image-main.png');
    background-size: cover;
    background-position: center;
    opacity: 0.15;
}

/* Headers */
.reveal h1,
.reveal h2,
.reveal h3,
.reveal h4 {
    font-family: 'JetBrains Mono', 'CMU Serif', monospace;
    font-weight: 700;
    color: var(--color-blue);
    text-transform: none;
    text-shadow: 0 0 10px rgba(88, 196, 221, 0.5);
}

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

.reveal h2 {
    font-size: 2em;
    border-bottom: 3px solid var(--color-blue);
    padding-bottom: 0.3em;
    margin-top: 0;
}

.reveal h3 {
    font-size: 1.5em;
    color: var(--color-green);
}

/* Strong/Bold text */
.reveal strong {
    color: var(--color-yellow);
    font-weight: 700;
}

/* Links */
.reveal a {
    color: var(--color-blue);
    text-decoration: none;
}

.reveal a:hover {
    color: var(--color-purple);
    text-shadow: 0 0 10px rgba(201, 160, 220, 0.7);
}

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

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

/* Code blocks */
.reveal code {
    font-family: 'JetBrains Mono', monospace;
    background-color: rgba(88, 196, 221, 0.1);
    padding: 0.2em 0.4em;
    border-radius: 4px;
    color: var(--color-blue);
}

.reveal pre {
    background-color: rgba(0, 0, 0, 0.5);
    border: 2px solid var(--color-blue);
    border-radius: 8px;
    box-shadow: 0 0 20px rgba(88, 196, 221, 0.3);
}

.reveal pre code {
    background-color: transparent;
    padding: 1em;
    max-height: 600px;
}

/* Tables */
.reveal table {
    border-collapse: collapse;
    margin: 1em auto;
    font-family: 'JetBrains Mono', monospace;
}

.reveal table th {
    background-color: var(--color-blue);
    color: var(--bg-dark);
    font-weight: 700;
    padding: 0.5em 1em;
    border: 2px solid var(--color-blue);
}

.reveal table td {
    padding: 0.5em 1em;
    border: 1px solid var(--color-blue);
}

.reveal table tr:nth-child(even) {
    background-color: rgba(88, 196, 221, 0.05);
}

/* Math equations */
.reveal .MathJax,
.reveal .katex {
    color: var(--color-green);
    text-shadow: 0 0 5px rgba(131, 193, 103, 0.3);
}

/* Columns */
.reveal .columns {
    display: flex;
    gap: 2em;
    align-items: flex-start;
    width: 100%;
}

.reveal .column {
    flex: 1;
    padding: 1.5em;
    background-color: rgba(88, 196, 221, 0.05);
    border-radius: 10px;
    border: 1px solid rgba(88, 196, 221, 0.2);
}

/* Slide number */
.reveal .slide-number {
    font-family: 'JetBrains Mono', monospace;
    color: var(--color-blue);
    background-color: rgba(10, 10, 10, 0.8);
    padding: 0.5em;
    border-radius: 5px;
}

/* Progress bar */
.reveal .progress {
    background: rgba(88, 196, 221, 0.2);
}

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

/* Blockquotes */
.reveal blockquote {
    background-color: rgba(88, 196, 221, 0.1);
    border-left: 5px solid var(--color-blue);
    padding: 1em;
    font-style: italic;
    box-shadow: 0 0 15px rgba(88, 196, 221, 0.2);
}

/* Slide layout and content positioning */
.reveal .slides {
    padding: 0 !important;
}

.reveal .slides > section,
.reveal .slides > section > section {
    padding: 3em 4em !important;
    height: 100%;
    width: 100%;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.reveal .slides section {
    text-align: left;
    width: 100%;
    height: 100%;
}

.reveal .slides section.center {
    text-align: center;
}

/* Title slide */
.reveal .slides > section.title-slide,
.reveal section.title-slide {
    text-align: center !important;
    display: flex !important;
    flex-direction: column !important;
    justify-content: center !important;    
    align-items: center !important;        
    height: 100vh !important;
    width: 100vw !important;
    padding: 0 !important;
    margin: 0 !important;
    top: 0 !important;
    left: 0 !important;
    background-color: var(--bg-dark) !important;
}

.reveal .title-slide h1 {
    color: var(--color-blue);
    font-size: 3.2em;
    text-shadow: 0 0 25px rgba(88, 196, 221, 0.9);
    margin: 0 0 0.4em 0;
    line-height: 1.2;
}

.reveal .title-slide .author,
.reveal .title-slide .date {
    font-size: 1.4em;
    margin: 0.4em 0;
    color: var(--text-light);
    opacity: 0.9;
}

.reveal .title-slide > * {
    max-width: 90%;
}

/* Highlighting */
.reveal .highlight {
    color: var(--color-yellow);
    background-color: rgba(255, 255, 0, 0.1);
    padding: 0.1em 0.3em;
    border-radius: 3px;
}

/* Fragment animations with glow effect */
.reveal .fragment.highlight-current-blue.current-fragment {
    color: var(--color-blue);
    text-shadow: 0 0 15px rgba(88, 196, 221, 0.8);
}