:root {
  --bg: #f4f5f7;
  --fg: #1d2330;
  --muted: #5b6475;
  --card: #ffffff;
  --line: #d9dde5;
  --accent: #1f4fa3;
  --accent-fg: #ffffff;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #15181e;
    --fg: #e7eaf0;
    --muted: #9aa3b4;
    --card: #1e222a;
    --line: #313744;
    --accent: #6c9cf0;
    --accent-fg: #0b1220;
  }
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { height: 100%; margin: 0; }
body {
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--fg);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif;
}
.bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 16px;
  border-bottom: 1px solid var(--line);
  background: var(--card);
  min-height: 48px;
}
.brand { font-size: 16px; }
.badge {
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--muted);
}
.doc-title { color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.spacer { flex: 1; }
button, .button {
  font: inherit;
  padding: 6px 14px;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--fg);
  cursor: pointer;
}
button:hover, .button:hover { border-color: var(--accent); }
.primary { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); }
.start {
  flex: 1;
  overflow: auto;
  padding: 32px 16px;
  display: grid;
  gap: 16px;
  align-content: start;
  justify-items: center;
}
.card {
  width: min(760px, 100%);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 20px 24px;
}
.card h2 { margin: 0 0 4px; font-size: 18px; }
.card p { margin: 0 0 16px; color: var(--muted); }
.row { display: flex; flex-wrap: wrap; gap: 8px; }
.stack { display: grid; gap: 12px; }
.stack label { display: grid; gap: 4px; color: var(--muted); font-size: 13px; }
input[type=text], textarea {
  font: 13px/1.4 ui-monospace, SFMono-Regular, Menlo, monospace;
  padding: 8px;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--fg);
  width: 100%;
}
.legal { color: var(--muted); font-size: 12px; }
.legal a { color: inherit; }
.editor-host { flex: 1; min-height: 0; }
.editor-host > * { width: 100%; height: 100%; border: 0; display: block; }
.toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%);
  background: var(--fg);
  color: var(--bg);
  padding: 8px 16px;
  border-radius: 6px;
  max-width: calc(100% - 32px);
}