/* Custom styles for your presentation template */

/* Root variables for easy theming */

:root {
  --main-color: #2196f3;
  --accent-color: #ff5722;
  --text-color: #fff;
  --background-color: #1e1e1e;
  --code-background: #2d2d2d;
}

/* Custom slide backgrounds */

.reveal .slides section[data-background-gradient] {
  color: var(--text-color);
}

/* Enhanced code blocks */

.reveal pre {
  box-shadow: 0 4px 8px rgb(0 0 0 / 30%);
  border-radius: 8px;
  margin: 1em 0;
}

.reveal pre code {
  background-color: var(--code-background);
  padding: 1em;
  border-radius: 8px;
  font-size: 0.9em;
  line-height: 1.4;
}

/* Fragment animations */

.reveal .fragment.highlight-current-blue {
  opacity: 1;
  visibility: inherit;
}

.reveal .fragment.highlight-current-blue.current-fragment {
  color: var(--main-color);
  font-weight: bold;
}

/* Custom list styling */

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

.reveal ul li::marker {
  color: var(--main-color);
}

/* Enhanced images */

.reveal img {
  border-radius: 8px;
  box-shadow: 0 4px 8px rgb(0 0 0 / 20%);
}

/* Progress bar customization */

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

/* Speaker notes styling (for development) */

.reveal .speaker-notes {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  font-size: 16px;
  line-height: 1.5;
}

/* Mobile responsiveness */
@media (width <= 768px) {
  .reveal h1 {
    font-size: 2.5em;
  }

  .reveal h2 {
    font-size: 2em;
  }

  .reveal h3 {
    font-size: 1.5em;
  }

  .reveal pre code {
    font-size: 0.8em;
  }
}

/* Print styles for PDF export */
@media print {
  .reveal .slides section {
    page-break-after: always;
  }

  .reveal .fragment {
    opacity: 1 !important;
    visibility: visible !important;
  }
}

/* Custom button styles */

.custom-button {
  background-color: var(--main-color);
  color: white;
  padding: 12px 24px;
  border: none;
  border-radius: 6px;
  font-size: 1em;
  cursor: pointer;
  transition: background-color 0.3s ease;
  text-decoration: none;
  display: inline-block;
}

.custom-button:hover {
  background-color: #1976d2;
  text-decoration: none;
  color: white;
}

/* Grid layout helper */

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
}

.grid-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1.5rem;
  align-items: center;
}

/* Highlight box */

.highlight-box {
  background-color: rgb(33 150 243 / 10%);
  border-left: 4px solid var(--main-color);
  padding: 1rem;
  margin: 1rem 0;
  border-radius: 0 8px 8px 0;
}

/* Logo positioning */

.logo {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 80px;
  height: auto;
  z-index: 100;
}

/* Custom slide numbers */

.reveal .slide-number {
  background-color: var(--main-color);
  color: white;
  padding: 5px 10px;
  border-radius: 4px;
  font-weight: bold;
}

/* Two-column layout for slides */

.two-column {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1em;
}

.two-column ul {
  flex: 1;
  margin: 0;
}

.two-column figure {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.two-column figure img {
  max-width: 100%;
  height: auto;
  object-fit: contain;
}

.two-column figcaption {
  font-size: 1.6rem;
  margin-top: 0.5em;
  text-align: center;
  color: var(--text-color);
}

/* Equations styling */

.two-column .equations {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  font-size: 1.2em;
  text-align: center;
  line-height: 1.5;
}

/* Logos on title slide */

.logos {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  padding: 1rem;
  flex-wrap: wrap;
}

.logos img {
  height: 80px;
  width: auto;
  max-width: 200px;
}

/* Collaborators on title slide */

.collaborators {
  text-align: center;
  margin-bottom: 1rem;
  font-size: 1.2rem;
  color: var(--text-color);
}

/* ORCID links */

.orcid-link {
  color: inherit;
  text-decoration: none;
  position: relative;
}

.orcid-link::after {
  content: "\f8d2"; /* Font Awesome ORCID icon unicode */
  font-family: "Font Awesome 6 Brands", sans-serif;
  font-weight: 400;
  font-size: 0.8em;
  margin-left: 2px;
  vertical-align: middle;
  color: #a6ce39; /* ORCID green color */
}