* {
    margin: 0;
    padding: 0;
}

body {
    font-family: "Times New Roman", serif;
    color: black;
}

.header {
    background-color: white;
    padding: 20px;
    border-bottom: 1px solid #ccc;
    overflow: auto;
}

.logo {
    float: left;
}

.logo img {
    width: 100px;
}

.menu {
    float: left;
    margin-left: 40px;
}

.menu a {
    margin-right: 25px;
    color: black;
    text-decoration: none;
    font-weight: bold;
    font-size: 22px;
}

.index {
    background-color: #e0e0e0;
    padding: 40px;
}

.index::after {
    content: "";
    display: block;
    clear: both;
}

.index_text {
    width: 50%;
    float: right;
}

.form {
    background-color: #e0e0e0;
    padding: 40px;
}

.form_text {
    font-size: 20px;
    color: #333;
    margin-bottom: 20px;
}

input[type="text"],
input[type="email"],
textarea {
    width: 100%;
    height: 30px;
    padding: 10px;
    margin-top: 5px;
    box-sizing: border-box;
    border: 2px solid black;
}

input[type="submit"] {
    width: 100%;
    padding: 15px;
    font-size: 22px;
    font-weight: bold;
    background-color: green;
    color: white;
    border: none;
    margin-top: 20px;
}

.about_me {
    background-color: #e0e0e0;
    padding: 40px;
    border-top: 1px solid #999;
    border-bottom: 1px solid #999;
    overflow: auto;
}

.about_me_text {
    width: 50%;
    float: left;
}
.about_me_text_right {
    width: 50%;
    float: right;
}

.about_image,
.about_image_left {
    width: 40%;
}

.about_image {
    float: right;
}

.about_image_left {
    float: left;
}

.about_image img,
.about_image_left img {
    width: 100%;
    border: 2px solid #333;
}

.topic {
    background-color: #e0e0e0;
    padding: 40px;
    border-bottom: 1px solid #999;
    overflow: auto;
}

.topic h1 {
    color: #0c7db1;
    text-align: center;
    margin-bottom: 30px;
}

.topic_left_text {
    width: 55%;
    float: left;
}

.topic_right_text {
    width: 55%;
    float: right;
}

.topic_left_image {
    width: 40%;
    float: left;
    margin-right: 20px;
}

.topic_right_image {
    width: 40%;
    float: right;
    margin-left: 20px;
}

.topic_left_image img,
.topic_right_image img {
    width: 100%;
    border: 2px solid black;
    box-sizing: border-box;
}

.topic_right_text h1,
.topic_left_text h1 {
    font-size: 45px;
    margin-bottom: 20px;
}

.topic_right_text h2,
.topic_left_text h2 {
    font-size: 30px;
    margin-top: 30px;
}

.topic_right_text h3,
.topic_left_text h3 {
    font-size: 24px;
    margin-top: 20px;
}

.topic_right_text p,
.topic_left_text p {
    font-size: 18px;
    line-height: 1.6;
    text-align: justify;
    margin-top: 15px;
    margin-bottom: 15px;
}

.topic::after {
    content: "";
    display: block;
    clear: both;
}

.Sources {
    background-color: #e0e0e0;
    padding: 60px 40px;
    border-top: 1px solid #999;
    text-align: center;        
    clear: both;               
    overflow: auto;           
}

.Sources h2 {
    font-size: 35px;
    margin-bottom: 20px;
}

.Sources ul {
    list-style-position: inside; 
    padding: 0;
}

.Sources li {
    margin-bottom: 15px;
    list-style-type: none;     
}

.Sources a {
    color: #0c7db1;
    text-decoration: underline;
    font-size: 18px;
}

.degree-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 25px;
    background-color: white;
}

.degree-table th, .degree-table td {
    border: 1px solid #ccc;
    padding: 12px;
    text-align: left;
}

.degree-table th {
    background-color: #0c7db1;
    color: white;
    font-size: 18px;
}

.degree-table tr:nth-child(even) {
    background-color: #f9f9f9;
}

.highlight-fce {
    background-color: #e3f2fd;
}

.image {
    width: 45%;
    float: left;
}

.image img {
    width: 100%;
    border: 1px solid black;
}

h1 {
    font-size: 45px;
    color: #333;
}

h2 {
    font-size: 35px;
    color: #333;
}

h3 {
    font-size: 28px;
    color: #333;
}

p {
    margin-top: 20px;
    color: #555;
    font-size: 20px;
}

.footer {
    background-color: white;
    padding: 20px;
    text-align: center;
    border-top: 1px solid #ccc;
}

.footer img {
    width: 50px;
    margin: 0 50px;
}