* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  background: #f4f5f7;
  color: #1f2328;
}

.container {
  max-width: 820px;
  margin: 0 auto;
  padding: 24px 16px;
}

h1 { font-size: 1.6rem; margin: 0 0 20px; }
h2 { font-size: 1.1rem; margin: 0 0 8px; }

.card {
  background: #fff;
  border: 1px solid #d8dce1;
  border-radius: 8px;
  padding: 18px;
  margin-bottom: 16px;
}

.muted { color: #5b6470; margin: 0 0 12px; font-size: 0.92rem; }

textarea {
  width: 100%;
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.95rem;
  padding: 10px;
  border: 1px solid #c5cbd3;
  border-radius: 6px;
  resize: vertical;
  margin-bottom: 10px;
}

button {
  background: #1f6feb;
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 9px 20px;
  font-size: 0.95rem;
  cursor: pointer;
}
button:hover { background: #1858c4; }

.status { font-weight: 600; margin: 0 0 10px; }
.status.ok { color: #1a7f37; }
.status.error { color: #cf222e; }

table { border-collapse: collapse; width: 100%; margin-bottom: 12px; font-size: 0.92rem; }
th, td { border: 1px solid #d8dce1; padding: 6px 10px; text-align: left; }
th { background: #eef1f4; }

pre {
  background: #0d1117;
  color: #e6edf3;
  padding: 12px;
  border-radius: 6px;
  overflow-x: auto;
  font-size: 0.85rem;
  margin: 0;
}
pre:empty { display: none; }