/* General Styles */
body {
    margin: 0;
    font-family: Arial, sans-serif;
}

/* Header Styles */
header {
    background-color: #3c7489;
    color: white;
    padding: 20px;
    text-align: center;
    border-bottom: 1px solid #333;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
}

header h3 {
    margin: 0;
    font-size: 1.8em;
}

header ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}

header li {
    margin: 0 15px;
}

header li a {
    color: white;
    text-decoration: none;
    font-size: 1.1em;
}

header li a:hover {
    text-decoration: underline;
}

header .teles {
    color: white;
    text-decoration: none;
    font-size: small;
    cursor: pointer;
}

header .teles:hover {
    font-size: medium;
    color: #ccb77f;
}

/* Centering Content */
.center {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* References Section */
.references {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    padding: 20px;
    margin: 20px auto 0;
    background-color: #f5f5f5;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.references h1 {
    text-align: center;
    font-size: 2em;
    margin-bottom: 10px;
    color: #333;
}

.references ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
}

.references li {
    margin: 10px 0;
    font-size: 1.1em;
}

.references a {
    color: #007bff;
    text-decoration: none;
    transition: color 0.3s ease;
}

.references a:hover {
    color: #0056b3;
    text-decoration: underline;
}

.references a+a {
    display: block;
    margin-top: 5px;
}

footer {
    background-color: #3c7489;
    color: #ecf0f1;
    padding: 20px;
    text-align: center;
    position: relative;
    bottom: 0;
    width: 100%;
    box-shadow: 0 -2px 4px rgba(0, 0, 0, 0.1);
}

footer .copyright {
    margin: 0;
    font-size: 0.9em;
}

footer a {
    color: #ccb77f;
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
    header {
        flex-direction: column;
    }

    header ul {
        flex-direction: column;
        padding: 0;
    }

    header li {
        margin: 10px 0;
    }
}

@media (max-width: 480px) {
    header h3 {
        font-size: 1.5em;
    }

    header li a {
        font-size: 1em;
    }

    .references h1 {
        font-size: 1.5em;
    }

    .references li {
        font-size: 1em;
    }
}