/**
 * Base styles for iframe content
 * Uses CSS custom properties for theming: --theme-bg, --theme-fg, --theme-border, --theme-accent
 */

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 4px;
  background: var(--theme-bg);
  color: var(--theme-fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 14px;
  line-height: 1.6;
  overflow-x: hidden;
  word-wrap: break-word;
}

a { color: var(--theme-accent); }

pre {
  background: rgba(0,0,0,0.3);
  padding: 12px;
  border-radius: 6px;
  overflow-x: hidden;
  white-space: pre-wrap;
  word-wrap: break-word;
  overflow-wrap: break-word;
  font-family: "Fira Code", "Consolas", "Monaco", monospace;
  font-size: 13px;
}

code {
  background: rgba(0,0,0,0.2);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: "Fira Code", "Consolas", "Monaco", monospace;
}

pre code {
  background: transparent;
  padding: 0;
}

blockquote {
  border-left: 4px solid var(--theme-accent);
  margin: 12px 0;
  padding: 8px 16px;
  background: rgba(0,0,0,0.15);
}

img {
  max-width: 100%;
  height: auto;
  border-radius: 4px;
}

table {
  border-collapse: collapse;
  width: 100%;
  margin: 12px 0;
  border: 1px solid var(--theme-border);
}

th, td {
  border: 1px solid var(--theme-border);
  padding: 8px;
  text-align: left;
}

th { background: rgba(0,0,0,0.2); }
tr:last-child td { border-bottom: 1px solid var(--theme-border); }

hr {
  border: none;
  border-top: 1px solid var(--theme-border);
  margin: 16px 0;
}

h1, h2, h3, h4, h5, h6 {
  margin-top: 16px;
  margin-bottom: 8px;
  color: var(--theme-fg);
}

h1:first-child, h2:first-child, h3:first-child, 
h4:first-child, h5:first-child, h6:first-child {
  margin-top: 0;
}

ul, ol { padding-left: 24px; margin: 8px 0; }
li { margin: 2px 0; }