* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f4f6f8;
  color: #222;
}

.container {
  max-width: 900px;
  margin: 32px auto;
  padding: 0 16px 40px;
}

h1 {
  text-align: center;
  margin-bottom: 24px;
}

.card {
  background: #fff;
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 18px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
}

h2 {
  margin-top: 0;
  font-size: 20px;
}

.row {
  display: flex;
  flex-direction: column;
  margin-bottom: 14px;
}

.row.inline {
  flex-direction: row;
  gap: 10px;
  align-items: center;
}

label {
  font-weight: bold;
  margin-bottom: 6px;
}

input,
select,
button,
textarea {
  font-size: 16px;
  padding: 10px 12px;
}

input,
select {
  border: 1px solid #cfd6dd;
  border-radius: 8px;
}

.button-row {
  display: flex;
  gap: 12px;
  margin-top: 18px;
}

button {
  border: none;
  border-radius: 8px;
  cursor: pointer;
  background: #ddd;
}

button.primary {
  background: #1f6feb;
  color: #fff;
}

button:hover {
  opacity: 0.92;
}

.hidden {
  display: none;
}

.guest-item {
  border: 1px solid #ddd;
  border-radius: 10px;
  padding: 12px;
  margin-bottom: 10px;
  background: #fafafa;
}

pre {
  white-space: pre-wrap;
  background: #111;
  color: #e6edf3;
  padding: 12px;
  border-radius: 8px;
  min-height: 80px;
  overflow-x: auto;
}