body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background: url('images/background.jpg') no-repeat center center fixed;
    background-size: cover;
}

.login-container, .admin-container, .container {
    max-width: 400px;
    margin: 50px auto;
    padding: 20px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.login-container img {
    display: block;
    margin: 0 auto 20px;
}

form {
    display: flex;
    flex-direction: column;
}

input {
    margin-bottom: 10px;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

button {
    padding: 10px;
    background: #007BFF;
    color: #fff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

button:hover {
    background: #0056b3;
}

.error {
    color: red;
    margin-bottom: 10px;
}

.result, .visit-counter {
    margin-top: 20px;
    padding: 10px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 5px;
}