:root {
  --color-bg: #f4f6f8;
  --color-surface: #ffffff;
  --color-border: #e5e9ef;
  --color-text: #1a1d21;
  --color-text-muted: #5c6570;
  --color-accent: #2563eb;
  --color-accent-hover: #1d4ed8;
  --color-positive: #059669;
  --color-negative: #dc2626;
  --radius-card: 12px;
  --radius-control: 8px;
  --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
  --font-sans: 'DM Sans', system-ui, sans-serif;
}

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

body.app-body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.app-main {
  padding: 1.5rem 0 2.5rem;
}

@media (min-width: 768px) {
  .app-main {
    padding: 2rem 0 3rem;
  }
}