* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Courier New', monospace;
    background-color: #000;
    color: #0f0;
    line-height: 1.6;
    overflow-x: hidden;
}

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

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    position: relative;
    z-index: 1;
    background-color: rgba(0, 0, 0, 0.85);
}

.header {
    color: #0f0;
    font-size: 8px;
    line-height: 1.2;
    margin: 20px 0;
    text-align: center;
}

h1, h2, h3 {
    color: #0f0;
    font-weight: normal;
    margin: 15px 0 10px 0;
}

h1 {
    font-size: 24px;
    letter-spacing: 2px;
}

h2 {
    font-size: 18px;
    letter-spacing: 1px;
}

h3 {
    font-size: 14px;
    margin-left: 20px;
}

p {
    margin: 10px 0;
}

hr {
    border: none;
    border-top: 1px solid #0f0;
    margin: 20px 0;
}

ul {
    list-style: none;
    margin: 10px 0;
    padding-left: 20px;
}

ul li {
    margin: 5px 0;
}

ul li:before {
    content: "> ";
    color: #0f0;
}

a {
    color: #0f0;
    text-decoration: none;
    border-bottom: 1px dotted #0f0;
}

a:hover {
    color: #fff;
    border-bottom: 1px solid #fff;
    background-color: #0f0;
}

a:visited {
    color: #0a0;
}

footer {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #0f0;
    font-size: 12px;
    text-align: center;
}

/* Responsive */
@media (max-width: 600px) {
    .header {
        font-size: 6px;
    }

    h1 {
        font-size: 18px;
    }

    .container {
        padding: 10px;
    }
}