:root {
  --bg: #f4f8fb;
  --card: #ffffff;
  --ink: #0f172a;
  --brand: #0b7285;
  --line: #d8e2ea;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: radial-gradient(circle at top, #e5f5f9, #f7fafc 45%);
  color: var(--ink);
  font-family: "IBM Plex Sans", "Noto Sans SC", sans-serif;
}
.container {
  max-width: 960px;
  margin: 24px auto;
  padding: 0 16px 24px;
}
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 16px;
}
label {
  display: block;
  margin: 8px 0;
  font-size: 14px;
}
input, textarea {
  width: 100%;
  margin-top: 6px;
  padding: 10px;
  border-radius: 8px;
  border: 1px solid var(--line);
}
button {
  border: 0;
  background: var(--brand);
  color: white;
  padding: 10px 14px;
  border-radius: 8px;
  cursor: pointer;
}
button:hover { opacity: 0.92; }
.row {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-top: 8px;
}
pre {
  white-space: pre-wrap;
  background: #f7fbff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  min-height: 60px;
}
.notification {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  margin-bottom: 8px;
}
.meta {
  color: #334155;
  font-size: 13px;
}