@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700&family=Roboto:wght@400;700&display=swap');

body {
    margin: 0;
    padding: 0;
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #000066, #330066);
    color: #ffffff;
}

header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(0, 0, 0, 0.8);
    padding: 20px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
}

header h1 {
    font-family: 'Orbitron', sans-serif;
    font-size: 2rem;
    color: #00ffcc;
}

nav a {
    margin-left: 20px;
    text-decoration: none;
    color: #ffffff;
    font-weight: bold;
    position: relative;
}

nav a::after {
    content: '';
    display: block;
    width: 0;
    height: 2px;
    background: #00ffcc;
    transition: width 0.3s;
    position: absolute;
    bottom: -5px;
    left: 0;
}

nav a:hover::after {
    width: 100%;
}

.container {
    padding: 100px 20px 20px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

section {
    margin-bottom: 50px;
}

h2 {
    font-family: 'Orbitron', sans-serif;
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: #ff9933;
}

h3, h4 {
    font-family: 'Orbitron', sans-serif;
    color: #00ffff;
}

p {
    line-height: 1.6;
    margin-bottom: 20px;
    color: #dddddd;
}

.button {
    background: #00ffcc;
    border: 2px solid #ffffff;
    border-radius: 8px;
    padding: 10px 20px;
    color: #ffffff;
    cursor: pointer;
    transition: background-color 0.3s ease;
    box-shadow: 0px 4px 8px rgba(255, 255, 255, 0.5);
}

.button:hover {
    background: #00ff99;
}

img {
    width: 100%;
    max-width: 320px;
    margin: 10px;
}

pre {
    background: #1a1a1a;
    padding: 20px;
    border-radius: 8px;
    overflow: auto;
    color: #00ffcc;
    font-family: 'Roboto', monospace;
}

.code-block {
    margin-top: 20px;
}

.reference {
    background: rgba(255, 255, 255, 0.1);
    padding: 20px;
    border-radius: 8px;
    text-align: center;
    font-size: 1.2rem;
    color: #ffcc00;
    margin-bottom: 50px;
}

@keyframes particle {
    0% {
        transform: translateY(-100%);
        opacity: 0;
    }
    50% {
        opacity: 1;
    }
    100% {
        transform: translateY(100%);
        opacity: 0;
    }
}

.particle {
    position: absolute;
    width: 5px;
    height: 5px;
    background: #ffffff;
    border-radius: 50%;
    animation: particle 3s infinite ease-in-out;
}

@media (max-width: 1440px) {
    h1 {
        font-size: 1.8rem;
    }
    h2 {
        font-size: 2.2rem;
    }
}

@media (max-width: 1200px) {
    header {
        padding: 15px 30px;
    }
    .container {
        padding: 80px 15px 15px 15px;
    }
}

@media (max-width: 1024px) {
    nav a {
        margin-left: 15px;
        font-size: 0.9rem;
    }
}

@media (max-width: 768px) {
    header {
        flex-direction: column;
        align-items: flex-start;
    }
    nav {
        margin-top: 10px;
    }
    h1 {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    header {
        padding: 10px 20px;
    }
    .container {
        padding: 70px 10px 10px 10px;
    }
    h2 {
        font-size: 2rem;
    }
}

@media (max-width: 320px) {
    h1 {
        font-size: 1.2rem;
    }
    h2 {
        font-size: 1.8rem;
    }
}