:root {
  color-scheme: light dark;
  --bg: #f5f5f5;
  --fg: #1a1a1a;
  --card-bg: #ffffff;
  --border: #ddd;
  --accent: #2563eb;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121212;
    --fg: #eaeaea;
    --card-bg: #1e1e1e;
    --border: #333;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 24px;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  max-width: 720px;
  margin-inline: auto;
}

header h1 { margin-bottom: 4px; }
.subtitle { color: #888; font-size: 14px; line-height: 1.5; }

.step {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 20px;
  margin-bottom: 16px;
}
.step h2 { margin-top: 0; font-size: 16px; }
.step p { font-size: 13px; color: #999; margin: 4px 0 12px; }

button {
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 6px;
  padding: 8px 16px;
  font-size: 14px;
  cursor: pointer;
  margin-right: 8px;
}
button:disabled { background: #999; cursor: not-allowed; }

input, select {
  padding: 6px 8px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--fg);
  margin: 0 8px;
}

.calib-canvas {
  display: block;
  margin-top: 10px;
  cursor: crosshair;
  border: 1px solid var(--border);
  max-width: 100%;
}
.calib-prompt {
  background: #fffbcc;
  color: #333;
  padding: 6px 10px;
  border-radius: 6px;
  font-size: 13px;
  display: inline-block;
}

.template-preview {
  display: block;
  margin: 10px 0;
  border: 1px solid var(--border);
  border-radius: 4px;
}

.in-page-panel { margin-top: 12px; }

.log {
  font-family: ui-monospace, SFMono-Regular, monospace;
  font-size: 12px;
  max-height: 240px;
  overflow-y: auto;
  white-space: pre-wrap;
  color: #888;
}