*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  color: #1a1a1a;
  background: #f6f7fb;
}

.container {
  max-width: 760px;
  margin: 40px auto;
  padding: 24px;
  background: #ffffff;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

h1 {
  margin: 0 0 12px;
  font-size: 24px;
}

.hint {
  margin: 0 0 20px;
  color: #5a5a5a;
  font-size: 14px;
}

.form {
  display: grid;
  gap: 16px;
}

.field {
  display: grid;
  gap: 8px;
  font-size: 14px;
}

input,
textarea {
  padding: 10px 12px;
  border: 1px solid #d0d6e0;
  border-radius: 8px;
  font-size: 14px;
  width: 100%;
}

textarea {
  resize: vertical;
  min-height: 180px;
}

.button {
  padding: 12px 16px;
  border: none;
  border-radius: 8px;
  background: #2c6bed;
  color: #ffffff;
  font-size: 15px;
  cursor: pointer;
}

.button:hover {
  background: #245ad1;
}

.result {
  min-height: 22px;
  font-size: 14px;
  color: #1a1a1a;
}

.result.is-success {
  color: #1d7a3f;
}

.result.is-error {
  color: #b11226;
}