/* Nature/Science Color Scheme */
:root {
  --primary-color: #0d3b66;
  --primary-hover: #0a2d4d;
  --secondary-color: #1d5c8a;
  --accent-color: #3a7ca5;
  --text-primary: #1a1a2e;
  --text-secondary: #4a4a5a;
  --text-light: #6b6b7b;
  --background-primary: #ffffff;
  --background-secondary: #ffffff;
  --border-color: #e0e0e0;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.08), 0 2px 4px -2px rgb(0 0 0 / 0.05);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.08), 0 4px 6px -4px rgb(0 0 0 / 0.05);
  --transition: all 0.2s ease;
}

/* Smooth scrolling */
html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text-primary);
  line-height: 1.6;
  font-size: 16px;
  background-color: var(--background-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Modern Button Styles */
.button {
  border-radius: 6px !important;
  font-weight: 600 !important;
  transition: var(--transition) !important;
  border: none !important;
}

.button.is-dark {
  background: var(--primary-color) !important;
  color: white !important;
  box-shadow: var(--shadow-sm);
}

.button.is-dark:hover {
  background: var(--primary-hover) !important;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.button.is-dark:active {
  transform: translateY(0);
}

.link-block a {
  margin: 8px 4px;
}

/* Hero Section */
.hero {
  background: var(--background-primary);
}

.hero-body {
  padding: 4rem 1.5rem 2rem;
}

/* Tagline */
.tagline {
  font-family: 'Inter', sans-serif;
  font-size: 1.1rem;
  font-style: italic;
  color: var(--text-secondary);
  margin-top: 1.5rem;
  margin-bottom: 0;
  letter-spacing: 0.02em;
}

/* Publication Content Styling */
.publication-title {
  font-family: 'Inter', sans-serif !important;
  font-weight: 700 !important;
  margin-bottom: 1.5rem !important;
  line-height: 1.15 !important;
  letter-spacing: -0.02em;
  --gradient-boundary: 70%;
  background: linear-gradient(135deg, #1b7340 var(--gradient-boundary), #8b3a3a calc(100% - var(--gradient-boundary)));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.publication-authors {
  font-family: 'Inter', sans-serif !important;
  font-weight: 500;
  margin-bottom: 1rem;
}

.publication-authors a {
  color: var(--primary-color) !important;
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
}

.publication-authors a:hover {
  color: var(--accent-color) !important;
  text-decoration: underline;
}

.author-block {
  display: inline-block;
  margin-right: 0.25rem;
}

/* Section Styling */
.section {
  background: var(--background-primary);
  padding: 2.5rem 1.5rem;
}

.teaser-section {
  padding-top: 1rem;
  padding-bottom: 2rem;
}

/* Section Titles */
.title.is-3 {
  font-family: 'Inter', sans-serif !important;
  font-weight: 600 !important;
  color: var(--text-primary);
  margin-bottom: 1.5rem !important;
  font-size: 1.5rem;
}

/* Content */
.content.has-text-justified {
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--text-secondary);
}

.content.has-text-justified p {
  margin-bottom: 1rem;
}

/* Figure Styling - Sharp edges, no rounded corners */
figure.image {
  margin: 0;
}

figure.image img {
  width: 100%;
  height: auto;
  border-radius: 0;
  box-shadow: none;
  display: block;
}

/* Elegant Figure Captions - Nature/Science style */
.figure-caption {
  margin-top: 1rem;
  padding: 0;
  background: transparent;
  border: none;
}

.figure-caption p {
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--text-secondary);
  margin: 0;
  text-align: justify;
}

.figure-caption strong {
  color: var(--text-primary);
  font-weight: 600;
}

.figure-caption code {
  font-size: 0.85rem;
  padding: 0.1rem 0.35rem;
  background: #f5f5f5;
  border-radius: 3px;
  font-family: 'SF Mono', 'Monaco', 'Cascadia Code', monospace;
  color: var(--text-primary);
}

.figure-caption em {
  font-style: italic;
}

/* BibTeX Section */
.bibtex-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

pre {
  background: #f8f9fa !important;
  border: 1px solid var(--border-color) !important;
  border-radius: 4px !important;
  padding: 1.25rem !important;
  font-size: 0.875rem !important;
  overflow-x: auto;
}

code {
  background: transparent !important;
  color: var(--text-primary) !important;
  font-family: 'SF Mono', 'Monaco', 'Cascadia Code', 'Roboto Mono', monospace !important;
}

.copy-bibtex-btn {
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: 4px;
  padding: 0.5rem 0.75rem;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.copy-bibtex-btn:hover {
  background: var(--primary-hover);
}

.copy-bibtex-btn.copied {
  background: #2e7d32;
}

/* Footer */
.footer {
  background: var(--background-primary);
  border-top: 1px solid var(--border-color);
  padding: 2rem 1.5rem;
}

.footer .content {
  color: var(--text-light);
  font-size: 0.9rem;
}

.footer a {
  color: var(--primary-color);
  text-decoration: none;
}

.footer a:hover {
  text-decoration: underline;
}

/* Scroll to Top Button */
.scroll-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 44px;
  height: 44px;
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  box-shadow: var(--shadow-md);
}

.scroll-to-top:hover {
  background: var(--primary-hover);
}

.scroll-to-top.visible {
  opacity: 1;
  visibility: visible;
}

/* Mobile Responsive */
@media screen and (max-width: 768px) {
  .hero-body {
    padding: 2rem 1rem 1.5rem;
  }

  .publication-title {
    font-size: 1.75rem !important;
    line-height: 1.2 !important;
  }

  .publication-authors {
    font-size: 0.95rem !important;
  }

  .button {
    margin: 0.25rem !important;
    font-size: 0.85rem !important;
    padding: 0.6rem 0.9rem !important;
  }

  .section {
    padding: 1.5rem 1rem;
  }

  .figure-caption p {
    font-size: 0.85rem;
  }

  .content.has-text-justified {
    font-size: 1rem;
  }
}

@media screen and (max-width: 480px) {
  .publication-title {
    font-size: 1.5rem !important;
  }

  .hero-body {
    padding: 1.5rem 0.75rem 1rem;
  }

  .link-block {
    display: block;
    margin-bottom: 0.5rem;
  }

  .button {
    width: 100%;
    justify-content: center;
  }
}

/* Improved focus states for accessibility */
.button:focus,
a:focus {
  outline: 2px solid var(--accent-color);
  outline-offset: 2px;
}

/* Print styles */
@media print {
  .scroll-to-top {
    display: none;
  }

  .button {
    background: transparent !important;
    color: var(--text-primary) !important;
    box-shadow: none !important;
    border: 1px solid var(--border-color) !important;
  }
}