:root {
  --bg: #f7f7f9;
  --text: #222;
  --primary: #2563eb;
  --border: #ddd;
}
* { box-sizing: border-box; }
body {
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  margin: 0;
  padding: 24px;
}
h1 { margin: 0 0 16px; font-size: 24px; }
p a { margin-right: 12px; color: var(--primary); text-decoration: none; }
p a:hover { text-decoration: underline; }
form {
  background: #fff;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  max-width: 420px;
}
label { font-weight: 600; }
input, select, button { font: inherit; }
input, select {
  width: 100%;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
}
button {
  margin-top: 6px;
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 10px 14px;
  border-radius: 6px;
  cursor: pointer;
}
button:hover { opacity: .9; }
table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border: 1px solid var(--border);
}
th, td {
  padding: 10px;
  border-bottom: 1px solid var(--border);
  text-align: left;
}
th { background: #fafafa; }