html, body {
    margin: 0;
    padding: 0;
    height: 100%;  
    display: flex;
    justify-content: center;
    align-items: center;
    background: url('back.jpg') no-repeat center center fixed;
    background-size: cover;
    font-family: 'Arial', sans-serif;
    color: #ffffff;
}

.container {
    text-align: center;
    background-color: rgba(44, 44, 46, 0.9);  
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 0 25px rgba(0, 0, 0, 0.8);
    max-width: 500px;
    width: 90%;
}

input {
    width: 80%;
    padding: 12px;
    margin: 10px 0;
    border: 1px solid #ccc;
    border-radius: 5px;
    box-sizing: border-box;
}

.button {
    padding: 12px 20px;
    background-color: #f3c523;
    color: #fff;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.button:hover {
    background-color: #0056b3;
    color: #f3c523;
}

a {
    color: #f3c523;
    text-decoration: none;
}

a:hover {
    color: #0056b3;
}

#error-message {
    color: red;
    margin-top: 20px;
    display: none;
}