:root {
  --primary-color: #1772d0;
  --accent-color: #e37222;
  --text-color: #333;
  --text-light: #666;
  --bg-color: #ffffff;
  --bg-secondary: #f8f9fa;
  --border-color: #e1e4e8;
  --font-main: 'Lato', Verdana, Helvetica, sans-serif;
  --max-width: 960px;
  --spacing-sm: 6px;
  --spacing-md: 12px;
  --spacing-lg: 18px;
  --spacing-xl: 32px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-main);
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--bg-color);
  font-size: 16px;
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--accent-color);
  text-decoration: underline;
}

a.black {
  color: var(--text-color);
}

a.black:hover {
  color: var(--primary-color);
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* Header / Intro */
.intro-section {
  padding: var(--spacing-xl) 0;
  display: flex;
  gap: var(--spacing-xl);
  align-items: center;
}

.profile-photo {
  flex-shrink: 0;
  width: 200px;
  height: 200px;
}

.profile-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.intro-text {
  flex-grow: 1;
}

.name {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  color: var(--text-color);
}

.intro-desc {
  margin-bottom: var(--spacing-md);
}

.contact-links {
  margin-top: var(--spacing-md);
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  font-size: 0.95rem;
}

/* Sections */
section {
  padding: var(--spacing-md) 0;
  margin-bottom: var(--spacing-md);
}

.section-title {
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--accent-color);
  margin-bottom: var(--spacing-md);
  border-bottom: 2px solid var(--bg-secondary);
  padding-bottom: var(--spacing-sm);
}

/* Legacy Tags Support */
heading {
  font-family: var(--font-main);
  font-size: 22px;
  color: var(--accent-color);
  display: block;
  margin-bottom: var(--spacing-md);
  font-weight: bold;
}

subheading,
.subheading {
  font-family: var(--font-main);
  font-size: 1.25rem;
  font-style: italic;
  color: var(--accent-color); /* Changed to accent color to match original */
  display: block;
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
  font-weight: 600;
}

papertitle {
  font-family: var(--font-main);
  font-size: 16px;
  font-weight: bold;
  display: inline; /* Keep inline as in original context it might be used that way */
}

name {
  font-family: var(--font-main);
  font-size: 32px;
  font-weight: bold;
  display: block;
}

/* Helper Classes */
.news-box {
  background-color: var(--bg-secondary);
  border-radius: 8px;
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.news-list {
  list-style: none;
}

.news-item {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: 4px;
  align-items: baseline;
}

.news-date {
  font-weight: 600;
  width: 150px; /* Fixed width for alignment */
  flex-shrink: 0;
  color: var(--text-light);
}

.news-content {
  flex-grow: 1;
}

/* Publications */
.publication-item {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-sm); /* Compact spacing */
}

.pub-content {
  flex-grow: 1;
  line-height: 1.35; /* Smaller line height for inner content */
}

/* Original Spans */
span.highlight {
  background-color: #ffffd0;
}

span.artifact {
  color: #6cb41b;
  padding: 1px;
}

span.underline {
  border-bottom: 1px solid black;
  padding-bottom: 1px;
}

span.tag {
  color: #FFFFFF;
  background-color: #0076df; /* Original blue */
  padding: 1px 5px 2px 5px;
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: 600;
  vertical-align: middle;
  margin-right: 6px;
  display: inline-block;
}

span.tldr {
  color: #555555;
  display: block;
  margin-top: 4px;
  font-size: 0.9rem;
}

em.highlight {
  color: var(--accent-color);
}

/* Footer */
footer {
  text-align: center;
  padding: var(--spacing-xl) 0;
  color: var(--text-light);
  font-size: 0.9rem;
  border-top: 1px solid var(--border-color);
  margin-top: var(--spacing-xl);
}

.footer {
  font-family: var(--font-main);
  font-size: 14px;
  opacity: 0.75;
  color: #777;
}

/* Responsive */
@media (max-width: 768px) {
  .intro-section {
    flex-direction: column;
    text-align: center;
    padding: var(--spacing-lg) 0;
  }

  .profile-photo {
    width: 150px;
    height: 150px;
  }

  .contact-links {
    justify-content: center;
    gap: var(--spacing-sm);
  }
  
  .news-item {
    flex-direction: column;
    gap: 4px;
  }
  
  .publication-item {
    flex-direction: column;
  }
}
.service-item {
  margin-bottom: 12px;
}

.service-item h4 {
  margin-bottom: 4px;
  color: var(--accent-color);
}