* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: Arial, sans-serif;
  background-color: #f4f7fb;
  display: flex;
  flex-direction: column;   /* Stack elements vertically */
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
  overflow: hidden;
}

/* Login box centered */
.login-container {
  background: white;
  padding: 30px 40px;
  border-radius: 10px;
  box-shadow: 0 0 12px rgba(0,0,0,0.1);
  width: 450px;
  font-weight: 600;
  text-align: center;
  margin-bottom: 20px; /* Add spacing above ad box */
}

h2 {
  margin-bottom: 20px;
  color: #003366;
}

form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

input {
  padding: 10px;
  border-radius: 5px;
  border: 1px solid #ccc;
  font-size: 1rem;
}

button {
  background-color: #007bff;
  color: white;
  border: none;
  padding: 10px;
  border-radius: 6px;
  font-size: 1rem;
  cursor: pointer;
}

button:hover {
  background-color: #0056b3;
}

#error-message {
  color: red;
  margin-top: 10px;
}