:root {
  --bg: #0b0b0b;       /* panel/window background (dark mode default) */
  --fg: #e6e6e6;
  --border-light: #ffffff;
  --border-dark: #222222;
  --link: #9cdcfe;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #ffffff;     /* window stays white */
    --fg: #111111;
    --border-light: #333333;
    --border-dark: #cccccc;
    --link: #0366d6;
  }
}

html,
body {
  height: 100%;
  margin: 0;
  background: none; /* no page background color */
  color: var(--fg);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

.app-shell {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
}

.markdown-backdrop {
  position: fixed;
  inset: 0;
  margin: 8px 0 0 8px;
  padding: 0;
  box-sizing: border-box;
  pointer-events: none;
  background: transparent;
  border: 0;
  color: inherit;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 13px;
  line-height: inherit;
  white-space: pre-wrap;
  overflow: auto;
  opacity: 0.45;
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
}

@media (prefers-color-scheme: light) {
  .markdown-backdrop {
    color: #bdbdbd; /* slightly darker for legibility */
  }
}

@media (prefers-color-scheme: dark) {
  html, body {
    background: var(--bg); /* full-page dark background */
  }
  .markdown-backdrop {
    background: transparent; /* let page bg show through margins */
    color: #9a9a9a; /* off-black, softly faded */
  }
}

a {
  color: var(--link);
}