:root {
  --bg: #f6f7f9;
  --card: #ffffff;
  --text: #222;
  --muted: #6c727f;
  --border: #dfe3e8;
  --accent: #222;
  --danger: #b42318;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--bg);
  color: var(--text);
}
.container {
  max-width: 920px;
  margin: 40px auto;
  padding: 0 20px;
}
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 24px;
  margin-bottom: 18px;
}
h1, h2, h3 { margin-top: 0; }
label {
  display: block;
  font-weight: 600;
  margin-bottom: 7px;
}
input[type=text], input[type=email], input[type=password], input[type=number], textarea, select {
  width: 100%;
  padding: 11px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font: inherit;
  background: #fff;
}
textarea { min-height: 120px; resize: vertical; }
button, .btn {
  display: inline-block;
  border: 0;
  background: var(--accent);
  color: #fff;
  padding: 10px 15px;
  border-radius: 8px;
  text-decoration: none;
  cursor: pointer;
  font: inherit;
}
.btn.secondary { background: #e9ecef; color: #222; }
.btn.danger { background: var(--danger); }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.muted { color: var(--muted); }
.error {
  background: #fff1f0;
  border: 1px solid #f3b7b1;
  color: #7a271a;
  padding: 12px;
  border-radius: 8px;
  margin-bottom: 15px;
}
.success {
  background: #ecfdf3;
  border: 1px solid #abefc6;
  color: #067647;
  padding: 12px;
  border-radius: 8px;
  margin-bottom: 15px;
}
.question {
  border-top: 1px solid var(--border);
  padding-top: 18px;
  margin-top: 18px;
}
.question:first-child { border-top: 0; padding-top: 0; margin-top: 0; }
.choice { display: flex; gap: 8px; align-items: center; margin: 9px 0; }
.choice label { margin: 0; font-weight: 400; }
nav {
  background: #fff;
  border-bottom: 1px solid var(--border);
}
nav .inner {
  max-width: 1120px;
  margin: auto;
  padding: 12px 20px;
  display: flex;
  gap: 14px;
  align-items: center;
  flex-wrap: wrap;
}
nav a { color: #222; text-decoration: none; }
nav .spacer { flex: 1; }
table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
}
th, td {
  text-align: left;
  padding: 11px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
th { background: #f9fafb; }
.badge {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 999px;
  background: #eef2f6;
  font-size: 12px;
}
@media (max-width: 700px) {
  .row { grid-template-columns: 1fr; }
  .container { margin-top: 20px; }
  table { font-size: 14px; }
}