body {
    font-family: Arial, sans-serif;
    background-color: #1e2a3a;
    color: white;
    margin: 0;
    padding: 0;
}
.container {
    width: 80%;
    margin: auto;
    background-color: #2d3e50;
    padding: 20px;
    border-radius: 10px;
}
header {
    text-align: center;
    padding: 20px 0;
    background: url('banner.jpg') no-repeat center center;
    background-size: cover;
}
header h1 {
    font-size: 48px;
    text-shadow: 2px 2px #000;
}
nav {
    margin-top: 10px;
    text-align: center;
}
nav a {
    margin: 0 15px;
    color: #57A3E3;
    text-decoration: none;
    font-size: 18px;
}
nav a:hover {
    color: #fff;
}
.login-box {
    margin-top: 20px;
    text-align: center;
    background: #334a62;
    padding: 20px;
    border-radius: 10px;
}
.login-box h2 {
    color: #57A3E3;
}
.login-box input {
    width: 80%;
    padding: 10px;
    margin: 10px 0;
    border: none;
    border-radius: 5px;
}
footer {
    text-align: center;
    padding: 20px;
    margin-top: 20px;
    background-color: #1e2a3a;
}