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

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  color: #111827;
  background-color: #f9fafb;
}

.login-container {
  width: 100%;
  max-width: 400px;
  margin: 40px auto;
  padding: 24px;
}

h1 {
  font-size: 24px;
  margin-top: 0;
  margin-bottom: 8px;
  text-align: center;
}

h2 {
  font-size: 18px;
  font-weight: 500;
  margin-top: 0;
  margin-bottom: 24px;
  text-align: center;
  color: #4b5563;
}

.alert {
  padding: 12px 16px;
  margin-bottom: 16px;
  background-color: #fee2e2;
  border: 1px solid #ef4444;
  color: #b91c1c;
  border-radius: 4px;
  font-size: 16px;
}

.form-group {
  margin-bottom: 16px;
}

label {
  display: block;
  margin-bottom: 6px;
  font-size: 16px;
  font-weight: 500;
}

input[type="text"],
input[type="password"] {
  width: 100%;
  min-height: 56px;
  padding: 12px 16px;
  font-size: 16px;
  border: 1px solid #d1d5db;
  border-radius: 4px;
  background-color: #ffffff;
  color: #111827;
}

input[type="submit"],
button[type="submit"] {
  width: 100%;
  min-height: 56px;
  padding: 12px 16px;
  font-size: 16px;
  font-weight: 600;
  color: #ffffff;
  background-color: #2563eb;
  border: 1px solid #2563eb;
  border-radius: 4px;
  cursor: pointer;
}