body {
    margin: 0;
    padding: 0;
    font-family: 'Lexend';
    background: black;
    color: #fff;
    position: relative;
    text-align: center;
}

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
    background: rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.nav-left {
    flex: 1;
    display: flex;
    align-items: center;
}

.nav-left img {
    width: 50px;
    height: 50px;
    transition: transform 0.3s ease;
    border-radius: 30px;
}

.nav-left a:hover img {
    transform: scale(1.2);
}

.nav-center {
    display: flex;
    flex: 2;
    justify-content: center;
    gap: 1px;
}

.nav-center a {
    text-decoration: none;
    color: white;
    padding: 10px 20px;
    font-size: 16px;
    transition: color 0.3s ease;
}

.nav-center a:hover {
    color: #303030;
}

.nav-right {
    flex: 1;
}

#particles-js {
    position: fixed;  
    width: 100%;
    height: 100%;
    z-index: -1;
    top: 0;
    left: 0;
    background: black;
}


h1 {
    margin-top: 110px;
    font-size: 3em;
}

h2 {
    margin-top: 110px; 
}

button {
            background-color: transparent;
            border: 2px solid #ffffff;
            color: green;
            padding: 10px 20px;
            font-size: 16px;
            border-radius: 5px;
            cursor: pointer;
            transition: background-color 0.3s, color 0.3s;
            color: #ffffff;
        }

   button:hover {
            background-color: #ffffff;
            color: #000000;
        }

        .fullscreen-button {
            top-margin: 10px;
            background-color: transparent;
            border: 2px solid #ffffff;
            color: green;
            padding: 10px 20px;
            font-size: 16px;
            border-radius: 5px;
            cursor: pointer;
            transition: background-color 0.3s, color 0.3s;
            color: #ffffff;
        }

   .fullscreen-button:hover {
            background-color: #ffffff;
            color: #000000;
        }

.link-redirect {
  margin-top: 10px;
  color: #575757; 
}

.link-redirect a {
  color: #575757; 
  text-decoration: none; 
}

.link-redirect a:hover {
  text-decoration: underline; 
}

h6 {
    margin-top: 10px;
}

h3, h4, h5 {
color: #fff;
text-align: center;
}

hr {
border: none;
border-top: 2px solid white; 
margin: 15px auto; 
width: 100px; 
height: 1px; 
        }

select {
    background-color: #000;
    color: #fff;
    width: 200px;
    max-width: 400px;
    padding-top: 5px;
    font-size: 20px;
    padding-bottom: 5px;
    margin: 2px;
    border-radius: 10px;
    padding-left: 10px;
    border: 2px solid #fff;
    padding-right: 10px;
    height: 45px;
}