*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg-dashboard: #0b1119;
  --bg-canvas: #f5f6f8;
  --bg-nav: #0b1119;
  --surface-dashboard: #141c26;
  --surface-canvas: #ffffff;
  --border-dashboard: #1e293b;
  --border-canvas: #e2e6ea;

  --accent: #38bdf8;
  --accent-hover: #0ea5e9;
  --accent-soft: rgba(56, 189, 248, 0.12);

  --status-todo: #64748b;
  --status-progress: #38bdf8;
  --status-done: #22c55e;
  --status-blocked: #f59e0b;
  --status-overdue: #ef4444;

  --priority-urgent: #ef4444;
  --priority-high: #f97316;
  --priority-medium: #38bdf8;
  --priority-low: #64748b;

  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-canvas: #1e293b;
  --text-canvas-secondary: #64748b;

  --font-ui: 'Inter', -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-mono: 'JetBrains Mono', 'Cascadia Code', 'Consolas', monospace;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;

  --nav-height: 48px;
}

html, body {
  height: 100%;
  overflow: hidden;
  font-family: var(--font-ui);
  font-size: 14px;
  line-height: 1.5;
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

#app {
  height: 100%;
  display: flex;
  flex-direction: column;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

input, textarea {
  font-family: inherit;
  font-size: inherit;
}

::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: #334155;
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: #475569;
}