* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #ffffff;
  color: #000000;
}

.page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.card {
  width: min(100%, 560px);
  border: 1px solid #000000;
  background: #ffffff;
  border-radius: 6px;
  padding: 28px;
}

.badge {
  display: inline-block;
  margin: 0 0 12px;
  padding: 4px 10px;
  border: 1px solid #000000;
  border-radius: 4px;
  font-weight: 700;
  font-size: 13px;
}

h1 {
  margin: 0 0 10px;
  font-size: 30px;
  line-height: 1.2;
}

.hint {
  margin: 0 0 18px;
  color: #000000;
}

.instructions {
  margin: 0 0 16px;
  padding: 12px;
  border: 1px solid #000000;
  border-radius: 6px;
  color: #000000;
  font-size: 14px;
  line-height: 1.45;
}

.instructions p {
  margin: 0 0 8px;
}

.instructions p:last-child {
  margin-bottom: 0;
}

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

label {
  font-size: 14px;
  font-weight: 600;
}

input,
textarea {
  width: 100%;
  border: 1px solid #000000;
  background: #ffffff;
  color: #000000;
  border-radius: 4px;
  padding: 12px;
  font-size: 15px;
}

textarea {
  resize: vertical;
}

input:focus,
textarea:focus {
  outline: 1px solid #000000;
  border-color: #000000;
}

button {
  border: 1px solid #000000;
  border-radius: 4px;
  padding: 13px;
  background: #000000;
  color: #ffffff;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
}

button:hover {
  opacity: 1;
}

button:disabled {
  opacity: 0.6;
  cursor: default;
}

.message {
  min-height: 24px;
  margin: 12px 0 0;
  font-size: 14px;
}

.message.error {
  color: #000000;
}

.message.success {
  color: #000000;
}

.message.info {
  color: #000000;
}

.back-link {
  display: inline-block;
  margin-top: 12px;
  color: #000000;
  text-decoration: underline;
  font-size: 14px;
}

@media (max-width: 640px) {
  h1 {
    font-size: 25px;
  }

  .card {
    padding: 18px;
  }
}