* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
  color: #1a1a1a;
  background: #fff;
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}
h1 { font-size: 1.75rem; margin-bottom: 0.5rem; line-height: 1.3; }
h2 { font-size: 1.35rem; margin-top: 2rem; margin-bottom: 0.5rem; border-bottom: 1px solid #e0e0e0; padding-bottom: 0.25rem; }
h3 { font-size: 1.1rem; margin-top: 1.5rem; margin-bottom: 0.4rem; }
p { margin-bottom: 1rem; }
ul, ol { margin: 0 0 1rem 1.5rem; }
li { margin-bottom: 0.35rem; }
a { color: #0969da; text-decoration: none; }
a:hover { text-decoration: underline; }
code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.9em;
  background: #f0f0f0;
  padding: 0.15em 0.35em;
  border-radius: 3px;
}
pre {
  background: #f6f8fa;
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  padding: 1rem;
  overflow-x: auto;
  margin-bottom: 1rem;
}
pre code { background: none; padding: 0; font-size: 0.85em; }
hr { border: none; border-top: 1px solid #e0e0e0; margin: 2rem 0; }
strong { font-weight: 600; }
em { font-style: italic; }
.meta { color: #666; font-size: 0.85rem; margin-bottom: 2rem; }

/* Report header */
.report-header { border-left: 4px solid #0969da; padding-left: 1rem; margin-bottom: 1.5rem; }
.report-header h1 { margin-bottom: 0.25rem; border-bottom: none; }

/* Table of contents */
.toc { background: #f6f8fa; border: 1px solid #e0e0e0; border-radius: 6px; padding: 1rem 1.5rem; margin-bottom: 2rem; }
.toc h2 { margin-top: 0; border-bottom: none; font-size: 1rem; }
.toc ul { margin-bottom: 0; }
.toc a { font-size: 0.9rem; }

/* Article Inventory list */
#article-inventory + ol li { padding: 0.25rem 0; border-bottom: 1px solid #f0f0f0; }
#article-inventory + ol li:last-child { border-bottom: none; }

/* Build Notes panel */
#build-notes ~ * { font-size: 0.9rem; color: #555; }
#build-notes { font-size: 1rem; color: #666; margin-top: 2rem; border-top: 1px solid #e0e0e0; padding-top: 1rem; }

/* Report index page */
.report-index h1 { border-bottom: none; }
.report-card-grid { display: flex; flex-direction: column; gap: 0.75rem; }
.report-card {
  display: block;
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  padding: 1rem 1.25rem;
  text-decoration: none;
  color: inherit;
  transition: background 0.15s;
}
.report-card:hover { background: #f6f8fa; border-color: #d0d0d0; }
.report-card-date { display: block; font-size: 1.05rem; font-weight: 500; margin-bottom: 0.15rem; }
.report-card-label {
  display: inline-block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: #888;
  border: 1px solid #ddd;
  border-radius: 3px;
  padding: 0.1em 0.5em;
}

/* Navigation footer */
.nav-footer {
  margin-top: 3rem;
  padding-top: 1rem;
  border-top: 1px solid #e0e0e0;
  font-size: 0.9rem;
  color: #666;
}
.nav-footer a { color: #0969da; }