* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f3f4f6;
  color: #111827;
}

.container {
  max-width: 760px;
  margin: 0 auto;
  padding: 24px 16px 40px;
}

h1 {
  margin-bottom: 4px;
}

.subtitle {
  margin-top: 0;
  margin-bottom: 20px;
  color: #4b5563;
}

.card {
  background: #ffffff;
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 16px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08);
}

form {
  display: grid;
  gap: 10px;
}

label {
  font-weight: 600;
}

input {
  padding: 8px;
  border: 1px solid #d1d5db;
  border-radius: 6px;
}

button {
  margin-top: 6px;
  width: fit-content;
  border: 0;
  border-radius: 6px;
  padding: 9px 14px;
  background: #2563eb;
  color: #ffffff;
  cursor: pointer;
}

button:hover {
  background: #1d4ed8;
}

.list {
  margin: 0;
  padding-left: 20px;
}

.list li {
  margin-bottom: 8px;
}

.hint {
  margin-top: 0;
  color: #6b7280;
  font-size: 0.95rem;
}

.status {
  margin: 10px 0 0;
  font-size: 0.95rem;
}

.status.success {
  color: #047857;
}

.status.error {
  color: #b91c1c;
}

.hidden {
  display: none;
}

.row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.row h2 {
  margin: 0;
}

button.secondary {
  background: #6b7280;
}

button.secondary:hover {
  background: #4b5563;
}