body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: url('assets/img/router-bg.jpg') no-repeat center center fixed;
    background-size: cover;
    color: white;
    text-align: center;
}

.container {
    padding-top: 10%;
}

.logo {
    width: 150px;
    margin-bottom: 20px;
}

h1 {
    font-size: 2.5em;
    font-weight: bold;
}

p {
    font-size: 1.2em;
    margin-bottom: 30px;
}

.button-group .btn {
    margin: 10px;
    padding: 15px 30px;
    font-size: 1.1em;
    border: none;
    cursor: pointer;
    border-radius: 6px;
    text-decoration: none;
}

.btn.green {
    background-color: #4CAF50;
    color: white;
}

.btn.orange {
    background-color: #FFA726;
    color: white;
}

footer {
    position: fixed;
    bottom: 10px;
    right: 20px;
    font-size: 0.9em;
}

/* Popup */
.popup {
    display: none;
    position: fixed;
    z-index: 999;
    padding-top: 100px;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.8);
}

.popup-content {
    background-color: #fff;
    margin: auto;
    padding: 20px;
    border: 1px solid #888;
    width: 80%;
    max-width: 600px;
    text-align: center;
}

.popup .close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
}

.popup .close:hover,
.popup .close:focus {
    color: black;
    text-decoration: none;
    cursor: pointer;
}

.btn.proceed {
    margin-top: 15px;
    background-color: #28a745;
    color: white;
    display: inline-block;
}