body, html {
    height: 100%;
    margin: 0;
    font-family: Arial, sans-serif;
    background: url('https://upload.wikimedia.org/wikipedia/commons/0/0c/Vasco_da_Gama_Bridge_Lisbon.jpg') 
                no-repeat center center fixed;
    background-size: cover;
}

.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
}

.login-box {
    background: #fff;
    padding: 2rem;
    border-radius: 8px;
    width: 320px;
    box-shadow: 0px 4px 20px rgba(0,0,0,0.2);
    text-align: center;
}

.logo img {
    width: 60px;
    margin-bottom: 10px;
}

h2 {
    margin-bottom: 20px;
    color: #333;
    font-weight: normal;
}

form {
    display: flex;
    flex-direction: column;
    text-align: left;
}

label {
    margin: 8px 0 4px;
    font-size: 14px;
    color: #333;
}

input {
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

button {
    margin-top: 20px;
    padding: 10px;
    background-color: #0070ba; /* azul Santander login */
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 15px;
    cursor: pointer;
}

button:hover {
    background-color: #005c94;
}

.options {
    margin-top: 15px;
    font-size: 13px;
}

.options a {
    display: block;
    color: #0070ba;
    text-decoration: none;
    margin-top: 5px;
}