/* ==========================================================================
  ATLANTIS DOCUMENTATION WEBSITE STYLES
========================================================================== */
  
  /* Custom CSS Variables for Easy Theming */
  :root {
    /* Colors */
      --primary-color: #2E86AB;
      --secondary-color: #A23B72;
      --accent-color: #F18F01;
      --background-color: #ffffff;
      --text-color: #333333;
      --text-light: #666666;
      --border-color: #e1e5e9;
      
      /* Fonts */
      --heading-font: 'Source Sans Pro', -apple-system, BlinkMacSystemFont, sans-serif;
    --body-font: 'Source Sans Pro', -apple-system, BlinkMacSystemFont, sans-serif;
    --code-font: 'Source Code Pro', 'Courier New', monospace;
    
    /* Spacing */
      --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;
    
    /* Shadows */
      --shadow-light: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-medium: 0 4px 8px rgba(0,0,0,0.15);
    --shadow-heavy: 0 8px 16px rgba(0,0,0,0.2);
  }

/* ==========================================================================
  GLOBAL TYPOGRAPHY
========================================================================== */
  
  /* Import Google Fonts */
  @import url('https://fonts.googleapis.com/css2?family=Source+Sans+Pro:ital,wght@0,300;0,400;0,600;0,700;1,400&family=Source+Code+Pro:wght@400;500&display=swap');

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--heading-font);
  font-weight: 600;
  line-height: 1.3;
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
}

h1 { font-size: 2.5rem; color: var(--primary-color); }
h2 { font-size: 2rem; color: var(--primary-color); }
h3 { font-size: 1.5rem; color: var(--secondary-color); }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.1rem; }
h6 { font-size: 1rem; }

p {
  margin-bottom: var(--spacing-md);
  color: var(--text-color);
}

/* ==========================================================================
  LANDING PAGE BACKGROUND
========================================================================== */
  
  .landing-page {
    /*background-image: linear-gradient(rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.4)), 
    url('images/ai_marine_ecosystem_model2.jpg');*/
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: var(--spacing-xxl);
    position: relative;
  }

.landing-page h1 {
  color: white;
  font-size: 3.5rem;
  font-weight: 700;
  text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.8);
  margin-bottom: var(--spacing-xl);
  text-align: center;
}

.landing-page h2 {
  color: white;
  font-size: 2rem;
  font-weight: 600;
  text-shadow: 2px 2px 6px rgba(0, 0, 0, 0.8);
  margin-top: var(--spacing-xxl);
  margin-bottom: var(--spacing-lg);
}

.landing-page p,
.landing-page li,
.landing-page a {
  color: white;
  font-size: 1.1rem;
  text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.8);
}

.landing-page a {
  color: #FFD700; /* Gold color for links */
    font-weight: 600;
  text-decoration: none;
  transition: color 0.3s ease;
}

.landing-page a:hover {
  color: #FFF;
    text-decoration: underline;
}

/* ==========================================================================
  NAVIGATION CUSTOMIZATION
========================================================================== */
  
  .navbar {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color)) !important;
    box-shadow: var(--shadow-medium);
    border-bottom: 3px solid var(--accent-color);
  }

.navbar-brand {
  font-family: var(--heading-font);
  font-weight: 700;
  font-size: 1.3rem;
}

.navbar-nav .nav-link {
  font-weight: 500;
  transition: all 0.3s ease;
}

.navbar-nav .nav-link:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
}

/* ==========================================================================
  SIDEBAR CUSTOMIZATION
========================================================================== */
  
  .sidebar {
    background-color: #f8f9fa;
      border-right: 2px solid var(--border-color);
    font-family: var(--body-font);
  }

.sidebar .sidebar-title {
  color: var(--primary-color);
  font-weight: 600;
  font-size: 1.1rem;
  border-bottom: 2px solid var(--accent-color);
  padding-bottom: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.sidebar-navigation .sidebar-item {
  margin-bottom: var(--spacing-xs);
}

.sidebar-navigation .sidebar-item a {
  color: var(--text-color);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: 4px;
  transition: all 0.3s ease;
  font-weight: 400;
}

.sidebar-navigation .sidebar-item a:hover {
  background-color: var(--primary-color);
  color: white;
  text-decoration: none;
}

.sidebar-navigation .sidebar-item.active a {
  background-color: var(--accent-color);
  color: white;
  font-weight: 600;
}

/* ==========================================================================
  CONTENT AREA STYLING
========================================================================== */
  
  .quarto-title-banner {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: var(--spacing-xxl) 0;
  }

.content-wrapper {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-xl);
}

/* Tables */
  .table {
    font-family: var(--body-font);
    border-collapse: collapse;
    margin: var(--spacing-lg) 0;
  }

.table th {
  background-color: var(--primary-color);
  color: white;
  font-weight: 600;
  padding: var(--spacing-md);
}

.table td {
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--border-color);
}

.table tbody tr:hover {
  background-color: rgba(46, 134, 171, 0.1);
}

/* Code blocks */
  pre {
    background-color: #f8f9fa;
      border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: var(--spacing-md);
    font-family: var(--code-font);
    font-size: 0.9rem;
    overflow-x: auto;
  }

code {
  font-family: var(--code-font);
  background-color: #f1f3f4;
    padding: 2px 4px;
  border-radius: 3px;
  font-size: 0.9em;
}

/* ==========================================================================
  RESPONSIVE DESIGN
========================================================================== */
  
  @media (max-width: 768px) {
    .landing-page {
      padding: var(--spacing-lg);
      text-align: center;
    }
    
    .landing-page h1 {
      font-size: 2.5rem;
    }
    
    .landing-page h2 {
      font-size: 1.5rem;
    }
    
    .content-wrapper {
      padding: var(--spacing-md);
    }
  }

/* ==========================================================================
  UTILITY CLASSES
========================================================================== */
  
  .text-center { text-align: center; }
.text-primary { color: var(--primary-color); }
.text-secondary { color: var(--secondary-color); }
.text-accent { color: var(--accent-color); }

.bg-primary { background-color: var(--primary-color); }
.bg-secondary { background-color: var(--secondary-color); }
.bg-accent { background-color: var(--accent-color); }

.shadow-light { box-shadow: var(--shadow-light); }
.shadow-medium { box-shadow: var(--shadow-medium); }
.shadow-heavy { box-shadow: var(--shadow-heavy); }

.rounded { border-radius: 6px; }
.rounded-lg { border-radius: 12px; }

/* ==========================================================================
  CUSTOM COMPONENTS
========================================================================== */
  
  .card {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: var(--spacing-lg);
    margin: var(--spacing-md) 0;
    box-shadow: var(--shadow-light);
    transition: box-shadow 0.3s ease;
  }

.card:hover {
  box-shadow: var(--shadow-medium);
}

.btn-primary {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
  color: white;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: 6px;
  font-weight: 600;
  transition: all 0.3s ease;
}

.btn-primary:hover {
  background-color: var(--secondary-color);
  border-color: var(--secondary-color);
  transform: translateY(-2px);
  box-shadow: var(--shadow-medium);
}

/* Scrollable table styling */
.table-responsive {
  overflow-x: auto;
  margin: 1.5rem 0;
  border: 1px solid #dee2e6;
  border-radius: 6px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.table-responsive table {
  margin-bottom: 0;
  min-width: 800px; /* Ensures table doesn't get too compressed */
}

.table-responsive th {
  position: sticky;
  top: 0;
  background-color: var(--primary-color);
  z-index: 10;
}

.table-responsive td:first-child,
.table-responsive th:first-child {
  position: sticky;
  left: 0;
  background-color: white;
  z-index: 5;
  border-right: 2px solid #dee2e6;
}

.table-responsive th:first-child {
  z-index: 15;
  background-color: var(--primary-color);
}