body {
    margin: 0;
    padding: 0;
    font-family: 'Roboto', sans-serif;
    color: #00ff00;
    overflow: hidden;
    background-color: black;
}

#content {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 50px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

header {
    margin-bottom: 50px;
}

h1, h2 {
    margin: 0;
    padding: 10px;
    background-color: rgba(0, 0, 0, 0.7);
    display: inline-block;
    border-radius: 5px;
}

button {
    background-color: #00ff00;
    color: black;
    border: none;
    padding: 10px 20px;
    cursor: pointer;
    font-size: 1em;
    transition: background-color 0.3s, transform 0.3s;
    border-radius: 5px;
}

button:hover {
    background-color: #00cc00;
    transform: scale(1.05);
}

#data-display {
    margin-top: 20px;
    background-color: rgba(0, 0, 0, 0.7);
    padding: 20px;
    border-radius: 10px;
    width: 80%;
    max-width: 600px;
}
   nav {
       position: fixed;
       top: 0;
       width: 100%;
       background-color: rgba(0, 0, 0, 0.8);
       padding: 10px 0;
       text-align: center;
       z-index: 2;
   }

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

   nav ul li {
       display: inline;
       margin-right: 20px;
   }

   nav ul li a {
       color: #00ff00;
       text-decoration: none;
       font-size: 1.2em;
       transition: color 0.3s;
   }

   nav ul li a:hover {
       color: #00cc00;
   }

   #content {
       padding-top: 60px; /* Adjust for the fixed nav */
   }
.snowflake {
    position: fixed;
    top: -10px;
    z-index: 0;
    color: white;
    font-size: 1em;
    user-select: none;
    pointer-events: none;
    animation: fall linear infinite;
}

@keyframes fall {
    to {
        transform: translateY(100vh);
    }
}
.robot {
    position: absolute;
    bottom: 0;
    width: 100px;
    animation: walk 10s linear infinite;
}

.left-robot {
    left: -100px;
    animation-name: walk-left;
}

.right-robot {
    right: -100px;
    animation-name: walk-right;
}

@keyframes walk-left {
    0% { left: -100px; }
    50% { left: 50%; }
    100% { left: 100%; }
}

@keyframes walk-right {
    0% { right: -100px; }
    50% { right: 50%; }
    100% { right: 100%; }
}
.snow-layer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
    z-index: 9999;
}

.snowflake {
    position: absolute;
    top: -10px;
    color: white;
    font-size: 1em;
    opacity: 0.8;
    animation: fall linear infinite;
}

@keyframes fall {
    to {
        transform: translateY(100vh);
    }
}