header {
    background-color: #00fff0;
    color: #fff;
    text-align: center;
    padding: 20px;
    font-size: 2em;
}
nav {
    background-color: #2c3e50;
    color: #fff;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1;
}
nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
}
nav li {
    margin: 0 10px;
}
nav a {
    color: #fff;
    text-decoration: none;
    font-size: 1.2em;
}
nav a:hover {
    color: #f1c40f;
}
main {
    padding-top: 80px;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 50px;
}
section {
    max-width: 800px;
    margin: 20px;
    padding: 20px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    background-color: #fff;
    border-radius: 10px;
    animation: slide-up 0.5s ease-in-out;
}
@keyframes slide-up {
    from {
        opacity: 0;
        transform: translateY(20px);
   }
    to {
        opacity: 1;
        transform: translateY(0);
   }
}
section h2 {
    margin-top: 0;
    margin-bottom: 20px;
    text-align: center;
    font-size: 1.5em;
    color: #2980b9;
}
section p {
    margin-top: 0;
    margin-bottom: 20px;
    text-align: center;
    font-size: 1.2em;
    line-height: 1.5;
}
section img {
    max-width: 100%;
    margin: 20px 0;
    border-radius: 10px;
    display: block;
    margin-left: auto;
    margin-right: auto;
}
section iframe {
    display: block;
    margin: 20px auto;
}

body {
    background-color: #00d1ff;
}