:root {
  --bg: #f3f4f6;
  --card: #ffffff;
  --text: #111827;
  --muted: #6b7280;
  --line: #d1d5db;
  --primary: #1d4ed8;
  --danger: #b91c1c;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 16px;
  display: grid;
  gap: 12px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.topbar h1 {
  margin: 0;
  font-size: 20px;
}

.badge {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 12px;
  background: #fee2e2;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
}

h2 {
  margin: 0 0 10px;
  font-size: 18px;
}

h3 {
  margin: 8px 0;
  font-size: 14px;
}

label {
  display: grid;
  gap: 6px;
  font-size: 13px;
}

.checkline {
  display: flex;
  align-items: center;
  gap: 8px;
}

input,
select,
textarea,
button {
  font: inherit;
}

input,
select,
textarea {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 8px;
  width: 100%;
  background: #fff;
}

textarea {
  resize: vertical;
}

.grid {
  display: grid;
  gap: 10px;
}

.grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid.four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.grid.five {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.actions {
  margin-top: 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

button {
  border: 1px solid var(--primary);
  background: var(--primary);
  color: #fff;
  border-radius: 6px;
  padding: 8px 12px;
  cursor: pointer;
}

button.ghost {
  background: #fff;
  color: var(--primary);
}

button.danger {
  background: var(--danger);
  border-color: var(--danger);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.table-wrap {
  margin-top: 10px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 820px;
}

th,
td {
  border-bottom: 1px solid #e5e7eb;
  text-align: left;
  padding: 8px;
  font-size: 12px;
  vertical-align: top;
}

th {
  background: #f9fafb;
}

.output {
  margin: 10px 0 0;
  max-height: 280px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fafafa;
  padding: 8px;
  font-size: 12px;
  white-space: pre-wrap;
  word-break: break-word;
}

.hint {
  color: var(--muted);
  font-size: 12px;
  margin-top: 8px;
}

.mono {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
}

@media (max-width: 980px) {
  .grid.two,
  .grid.three,
  .grid.four,
  .grid.five {
    grid-template-columns: 1fr;
  }
}