body {
    font-family: Arial, sans-serif;
    background-color: #2b3a42;
    color: white;
}
#logo {
    text-align: center;
    padding: 5px;
    height:20px;
}
h1 {
    margin-bottom: 20px;
    font-size: 2em;
    text-align: center;
}
.footer {
    text-align: center;
    margin:50px 0 30px;
}
.center {
    text-align: center;
}
button, .link-btn {
    background-color: #4caf50;
    color: #fff;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: #45a049;
}

.gray-button {
    background-color: #6c757d;
}

.gray-button:hover {
    background-color: #5a6268;
}

.b-info {
    margin-top: 30px;
    line-height: 32px;
}
a {
    color: white;
}
.footer .social-link {
    display: inline-block;
    margin: 3px;
    position: relative;
}
.footer .social-link:hover {
    opacity: 0.8;
}
.link-btn {
    padding: 10px 15px;
    text-decoration: none;
    background: #2b82a1;
}