:root {
  color-scheme: dark;
  --bg: #1a1a2e;
  --bg-soft: rgba(255, 255, 255, 0.06);
  --bg-card: rgba(255, 255, 255, 0.08);
  --border: rgba(255, 255, 255, 0.15);
  --fg: rgba(255, 255, 255, 0.92);
  --fg-dim: rgba(255, 255, 255, 0.6);
  --accent: #7c3aed;
  --accent-2: #06b6d4;
  --danger: #ef4444;
  --ok: #4caf50;
  font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
}

* { box-sizing: border-box; }

html, body, #app {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--fg);
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
  cursor: pointer;
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}