:root {
    --r-background-color: #ffffff;
    --r-main-font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --r-main-font-size: 52px;
    --r-main-color: #2c2c2c;
}

body {
    background: #ffffff;
}

.reveal {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #ffffff;
}

.reveal .slides {
    text-align: left;
}

.reveal section {
    /*padding: 60px !important;*/
    height: 100%;
    display: flex !important;
    flex-direction: column !important;
    justify-content: center !important;
}

.reveal h1, .reveal h2, .reveal h3, .reveal h4, .reveal h5, .reveal h6 {
    text-transform: none;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-weight: 600;
    color: #2c2c2c;
}

.reveal h1 {
    font-size: 4em;
    text-align: center;
}

.reveal h2 {
    font-size: 3em;
    border-left: 4px solid #2980b9;
    padding-left: 30px;
    margin-bottom: 1em;
    text-align: left;
}

.reveal h3 {
    font-size: 2.5em;
    color: #2980b9;
    margin-top: 1em;
    margin-bottom: 0.5em;
    border: none;
    padding: 0;
    text-align: left;
}

.reveal p {
    font-size: 2em;
    line-height: 1.6;
    color: #2c2c2c;
    margin: 0.3em 0;
    text-align: left;
}

.reveal ul {
    margin: 0;
    text-align: left;
    display: block;
    width: 100%;
}

.reveal li {
    font-size: 1.2em;
    line-height: 1.8;
    color: #2c2c2c;
    margin-bottom: 0.5em;
    text-align: left;
    list-style: none;
    margin-left: 2em;
}

.reveal ul ul, .reveal ol ol {
    margin-left: 2em;
}

.subtitle {
    font-size: 1.8em;
    color: #2980b9;
    margin-top: 0.5em;
    text-align: center;
}

.code {
    background: #f5f5f5;
    padding: 12px 16px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 1.2em;
    color: #2980b9;
    border-left: 3px solid #2980b9;
    margin: 15px 0;
    text-align: left;
    display: inline-block;
}

/* Title slide */
.reveal .title-slide {
    background: linear-gradient(135deg, #2980b9 0%, #2980b9 100%);
    text-align: center;
}

.reveal .title-slide h1 {
    color: white;
    text-align: center;
}

.reveal .title-slide h2 {
    color: white;
    border: none;
    padding: 0;
}

.reveal .title-slide .subtitle {
    color: #e1f0ff;
    text-align: center;
}

/* Section slide */
.reveal .section-slide {
    background: #2980b9;
    text-align: center;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    flex-direction: column !important;
}

.reveal .section-slide h1, .reveal .section-slide h2 {
    color: white;
    border: none;
    padding: 0;
    text-align: center;
}

.reveal .section-slide .subtitle {
    color: #e1f0ff;
    text-align: center;
}

/* Hide controls */
.reveal .controls {
    display: none !important;
}

.reveal .progress {
    display: none !important;
}

.emoji {
    margin-right: 0.3em;
}