body {
  background-color: #f9fafb;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  margin: 0;
  padding: 0;
}

.login-container {
  width: 100%;
  max-width: 400px;
  margin: 100px auto;
  padding: 2rem;
  background-color: #ffffff;
  border-radius: 8px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.1);
}

.login-container h1 {
  font-size: 1.8rem;
  margin-bottom: 1.5rem;
  color: #333;
  text-align: center;
}

input {
  width: 100%;
  padding: 0.75rem;
  margin-top: 1rem;
  border: 1px solid #d1d5db;
  border-radius: 6px;
  font-size: 1rem;
  box-sizing: border-box;
}

button {
  width: 100%;
  padding: 0.75rem;
  margin-top: 1.5rem;
  background-color: #4f46e5;
  color: white;
  border: none;
  border-radius: 6px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

button:hover {
  background-color: #4338ca;
}

a {
  color: #4f46e5;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.error {
  color: red;
  font-size: 0.9rem;
  margin-top: 0.5rem;
}