body {
  font-family: -apple-system, "Segoe UI", "Microsoft JhengHei", sans-serif;
  background: #f4f4f2;
  margin: 0;
  padding: 40px 16px;
  display: flex;
  justify-content: center;
}

.card {
  background: #fff;
  border-radius: 12px;
  padding: 32px;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

h1 {
  font-size: 20px;
  margin: 0 0 24px;
}

label {
  display: block;
  font-size: 14px;
  color: #555;
  margin-bottom: 6px;
}

input[type="text"] {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #ddd;
  border-radius: 8px;
  font-size: 15px;
  box-sizing: border-box;
  margin-bottom: 20px;
}

.amounts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 24px;
}

.amounts label {
  border: 1px solid #ddd;
  border-radius: 8px;
  padding: 14px;
  text-align: center;
  cursor: pointer;
  font-size: 16px;
  color: #222;
}

.amounts input {
  display: none;
}

.amounts input:checked + span {
  color: #c05423;
  font-weight: 600;
}

button {
  width: 100%;
  padding: 12px;
  background: #222;
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 15px;
  cursor: pointer;
}


.error-box {
  background: #fdecea;
  color: #a3211a;
  border: 1px solid #f5c2bd;
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 14px;
  margin-bottom: 20px;
}

.status {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 13px;
  background: #faeeda;
  color: #633806;
}

.field {
  margin-bottom: 12px;
  font-size: 14px;
  color: #444;
}

.field b {
  color: #111;
}