body {
  font-family: system-ui, sans-serif;
  background: #f5f5f5;
  margin: 0;
  padding: 40px;
  color: #222;
}

.container {
  max-width: 600px;
  margin: 0 auto;
  background: white;
  padding: 24px;
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

h1 {
  margin-top: 0;
  font-size: 24px;
}

.controls {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

label {
  display: flex;
  flex-direction: column;
  font-weight: bold;
  gap: 4px;
}

select,
button,
textarea {
  font: inherit;
}

select {
  padding: 8px;
  border: 1px solid #ccc;
  border-radius: 8px;
}

button {
  padding: 10px 16px;
  border: none;
  border-radius: 8px;
  background: #2563eb;
  color: white;
  cursor: pointer;
  font-weight: bold;
}

button:hover {
  background: #1d4ed8;
}

textarea {
  width: 100%;
  height: 360px;
  padding: 12px;
  box-sizing: border-box;
  resize: vertical;
  border: 1px solid #ccc;
  border-radius: 8px;
  line-height: 1.6;
}

.message {
  margin-top: 8px;
  color: #15803d;
  font-size: 14px;
}