body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; margin: 0; padding: 0; background: #f0f2f5; }
a { color: #1976d2; text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { color: #333; }
input, select, textarea, button { font-size: 14px; }