* {
  box-sizing: border-box;
  font-family: Arial, sans-serif;
}

body {
  margin: 0;
  padding: 16px;
  background: #f7f7fb;
  color: #1d1d20;
}

.container {
  max-width: 500px;
  margin: 0 auto;
  background: #ffffff;
  border: 1px solid #e6e6ef;
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 8px 24px rgba(20, 20, 41, 0.08);
}

h1 {
  margin: 0 0 8px;
  font-size: 1.25rem;
}

.subtitle {
  margin: 0 0 20px;
  font-size: 0.9rem;
  color: #5c5c66;
}

form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

label {
  font-size: 0.9rem;
  font-weight: 700;
}

input,
select,
button {
  width: 100%;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid #cfcfdb;
  font-size: 0.95rem;
}

input:focus,
select:focus,
button:focus {
  outline: 2px solid #a4bbff;
  outline-offset: 1px;
}

input:read-only,
select:disabled {
  background: #f0f0f5;
  color: #5c5c66;
  cursor: not-allowed;
}

button {
  margin-top: 8px;
  border: none;
  background: #2f5bff;
  color: #ffffff;
  font-weight: 700;
  cursor: pointer;
}

button:disabled {
  background: #7f95f0;
  cursor: wait;
}

.message {
  margin-top: 14px;
  min-height: 20px;
  font-size: 0.9rem;
}

.message.success {
  color: #008643;
}

.message.error {
  color: #c21616;
}