/* Reset and Base Styles */
* {
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: #ffffff;
  color: #333;
  margin: 0;
  padding: 0;
  line-height: 1.6;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  -ms-text-size-adjust: 100%;
}

/* Header */
header {
  text-align: center;
  padding: 1rem;
  background-color: #f5f5f5;
  border-bottom: 2px solid #ddd;
}

header h1 {
  margin: 0;
  color: #2c3e50;
  font-size: 1.8rem;
  word-wrap: break-word;
}

/* Container for main content */
main {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Case Summary Section */
#case-summary {
  width: 100%;
  margin: 1rem auto;
  padding: 1.5rem;
  background: #f9f9f9;
  border: 1px solid #ddd;
  border-radius: 5px;
}

#case-summary h2 {
  color: #2c3e50;
  border-bottom: 2px solid #3498db;
  padding-bottom: 0.5rem;
  margin-top: 0;
  font-size: 1.5rem;
}

#case-summary p {
  margin: 1rem 0;
  line-height: 1.7;
}

/* Main Content Layout */
.content-wrapper {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1rem;
}

#directory {
  flex: 1 1 350px;
  min-width: 0;
  padding: 1rem;
  background: #fafafa;
  border-radius: 5px;
}

#pdf-viewer {
  flex: 2 1 600px;
  min-width: 0;
  padding: 1rem;
}

/* Search Input */
input#search {
  width: 100%;
  padding: 0.75rem;
  margin-bottom: 1rem;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 16px; /* Prevents zoom on iOS */
  -webkit-appearance: none;
}

input#search:focus {
  outline: none;
  border-color: #3498db;
  box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

/* PDF List */
#directory h3 {
  color: #2c3e50;
  font-size: 1.2rem;
  margin-bottom: 1rem;
}

ul#pdf-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

ul#pdf-list li {
  padding: 1rem;
  margin: 0.5rem 0;
  cursor: pointer;
  background: #ffffff;
  border: 1px solid #ddd;
  border-radius: 4px;
  transition: all 0.3s;
  -webkit-tap-highlight-color: transparent;
}

ul#pdf-list li:hover,
ul#pdf-list li:active {
  background: #e8f4f8;
  border-color: #3498db;
  transform: translateY(-1px);
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

ul#pdf-list li div:first-child {
  font-weight: 600;
  color: #2c3e50;
  margin-bottom: 0.25rem;
}

ul#pdf-list li div:last-child {
  font-size: 0.9rem;
  color: #666;
  line-height: 1.4;
}

/* PDF Frame */
#pdf-frame {
  border: 1px solid #ddd;
  border-radius: 4px;
  margin-bottom: 1rem;
  width: 100%;
  height: 600px;
  background: #f9f9f9;
}

/* Download Button */
a#download-link {
  display: inline-block;
  margin-top: 0.5rem;
  padding: 0.75rem 1.5rem;
  background: #3498db;
  color: white;
  text-decoration: none;
  border-radius: 4px;
  transition: background 0.3s;
  font-weight: 500;
  text-align: center;
  -webkit-tap-highlight-color: transparent;
}

a#download-link:hover,
a#download-link:active {
  background: #2980b9;
}

/* Search Results */
#search-results {
  margin-top: 1rem;
  padding: 1rem;
  background: #f9f9f9;
  border: 1px solid #ddd;
  border-radius: 4px;
}

.search-result {
  padding: 1rem;
  margin: 0.5rem 0;
  border-left: 3px solid #3498db;
  background: white;
  border-radius: 0 4px 4px 0;
}

.highlight {
  background-color: #ffeb3b;
  font-weight: bold;
  padding: 0.1rem 0.2rem;
  border-radius: 2px;
}

/* Utility Classes */
.clear {
  clear: both;
}

/* Tablet Styles */
@media (max-width: 1024px) {
  #pdf-frame {
    height: 500px;
  }
}

/* Mobile Styles */
@media (max-width: 768px) {
  header h1 {
    font-size: 1.5rem;
    padding: 0 0.5rem;
  }
  
  #case-summary {
    padding: 1rem;
    margin: 0.5rem;
    border-radius: 0;
  }
  
  #case-summary h2 {
    font-size: 1.3rem;
  }
  
  #case-summary p {
    font-size: 0.95rem;
  }
  
  .content-wrapper {
    flex-direction: column;
  }
  
  #directory,
  #pdf-viewer {
    width: 100%;
    padding: 0.5rem;
  }
  
  #directory {
    background: transparent;
    border-bottom: 2px solid #eee;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
  }
  
  #pdf-frame {
    height: 400px;
  }
  
  ul#pdf-list li {
    padding: 0.75rem;
    font-size: 0.95rem;
  }
  
  a#download-link {
    display: block;
    width: 100%;
    padding: 1rem;
    font-size: 1rem;
  }
}

/* Small Mobile Styles */
@media (max-width: 480px) {
  body {
    font-size: 15px;
  }
  
  header {
    padding: 0.75rem 0.5rem;
  }
  
  header h1 {
    font-size: 1.3rem;
  }
  
  main {
    padding: 0;
  }
  
  #case-summary {
    margin: 0.5rem;
    padding: 1rem;
  }
  
  #case-summary h2 {
    font-size: 1.2rem;
  }
  
  #case-summary h3 {
    font-size: 1.1rem;
  }
  
  #pdf-frame {
    height: 350px;
    border-radius: 0;
  }
  
  input#search {
    padding: 0.6rem;
    font-size: 16px;
  }
  
  ul#pdf-list li {
    margin: 0.3rem 0;
  }
}

/* Accessibility Improvements */
@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    animation: none !important;
  }
}

/* Focus styles for keyboard navigation */
*:focus-visible {
  outline: 2px solid #3498db;
  outline-offset: 2px;
}

/* Print Styles */
@media print {
  header {
    background: none;
    border: none;
  }
  
  #directory,
  #search-results,
  a#download-link {
    display: none;
  }
  
  #pdf-viewer {
    width: 100%;
  }
  
  #case-summary {
    border: 1px solid #000;
  }
}