body {
    font-family: 'Arial', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #343a40;
    color: #ffffff;
}

header {
    background-color: #000;
    color: #00ff7f;
    padding: 0.3em;
    text-align: center;
}

nav {
    background-color: #004d4d;
    padding: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    overflow: hidden;
}

li {
    float: left;
}

a {
    display: block;
    color: white;
    text-align: center;
    padding: 12px 16px;
    text-decoration: none;
}

a:hover {
    background-color: #006666;
    color: white;
    transition: background-color 0.3s ease;
}

.dropdown {
    display: inline-block;
}

.dropdown-content {
    display: none;
    position: absolute;
    background-color: #008080;
    box-shadow: 0 8px 16px 0 rgba(36, 1, 1, 0.2);
    z-index: 1;
}

.dropdown:hover .dropdown-content {
    display: block;
}

section {
    max-width: 800px;
    margin: 20px auto;
    padding: 20px;
    background-color: #000;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
}

h2 {
    color: #00ff7f;
    border-bottom: 2px solid #008080;
    padding-bottom: 10px;
}

p {
    line-height: 1.6;
    color: #555;
}

.dropdown-content a:visited {
    color: #000000;
}

#sticky-footer {
    background-color: #1a1a1a;
    color: white;
    text-align: center;
    padding: 0.5em;
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    display: none;
    border-top: 2px solid #008080;
}

a.mail {
    color: black;
}

.logo img {
    width: 50px;
    height: auto;
}

sup {
    font-size: smaller;
    font-weight: bold;
    color: #00ff7f;
    text-decoration: none;
    cursor: pointer;
    margin-left: 10px;
}

body {
    color: #1a1a1a;
}

footer {
    background-color: #262626;
    color: #00ff7f;
    text-align: center;
    padding: 1em;
    border-top: 2px solid #008080;
}