* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: #ffffff;
  color: #222222;
}

.tool-wrap {
  max-width: 720px;
  margin: 60px auto;
  padding: 0 16px;
  text-align: center;
}

h1 {
  margin: 0;
  font-size: 34px;
  font-weight: 700;
}

.sub {
  margin: 10px 0 28px;
  color: #5f5f5f;
}

.tool-form {
  display: grid;
  gap: 10px;
  text-align: left;
}

label {
  font-weight: 600;
}

input {
  width: 100%;
  height: 42px;
  border: 1px solid #cfcfcf;
  border-radius: 6px;
  padding: 0 12px;
  font-size: 14px;
}

.btn {
  margin-top: 8px;
  height: 42px;
  border: 0;
  border-radius: 6px;
  background: #111111;
  color: #ffffff;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
}

#manifestOutput {
  text-align: left;
  margin: 20px 0 12px;
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  padding: 10px;
  min-height: 120px;
  white-space: pre-wrap;
  word-break: break-word;
  background: #fafafa;
}

.copy-btn {
  border: 1px solid #bdbdbd;
  background: #ffffff;
  border-radius: 6px;
  height: 36px;
  padding: 0 14px;
  cursor: pointer;
}