/* Simple, clean styling for bookdown */

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
}

/* Hide numbering for h4 headings */
.section.level4 h4::before {
  display: none !important;
}

/* Alternative: Hide all h4 section numbers */
h4 .header-section-number {
  display: none !important;
}

/* Code styling */
code, pre {
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
}

pre {
  background-color: #f8f8f8;
  border: 1px solid #ddd;
  border-radius: 4px;
  padding: 15px;
  overflow-x: auto;
}

code {
  background-color: #f1f1f1;
  padding: 2px 4px;
  border-radius: 3px;
  font-size: 0.9em;
}

/* Figure captions */
p.caption {
  color: #777;
  margin-top: 10px;
  font-style: italic;
  text-align: center;
}

/* Simple callout boxes */
.rmdnote {
  background-color: #e7f3ff;
  border-left: 5px solid #2196F3;
  padding: 15px;
  margin: 10px 0;
}

.rmdimportant {
  background-color: #e8f5e8;
  border-left: 5px solid #4caf50;
  padding: 15px;
  margin: 10px 0;
}

.rmdwarning {
  background-color: #fff3cd;
  border-left: 5px solid #ffc107;
  padding: 15px;
  margin: 10px 0;
}

.rmdtip {
  background-color: #f3e5f5;
  border-left: 5px solid #9c27b0;
  padding: 15px;
  margin: 10px 0;
}