body {
    margin: 0;
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #1a1a1a, #2c3e50);
    color: #ffffff;
    line-height: 1.6;
    overflow-x: hidden;
}

header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
}

header h1 {
    font-size: 24px;
    font-weight: bold;
    color: #ff9800;
    text-transform: uppercase;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 20px;
}

nav ul li a {
    color: #ffffff;
    text-decoration: none;
    font-size: 16px;
    transition: color 0.3s ease-in-out;
}

nav ul li a:hover {
    color: #ff9800;
}

.container {
    padding-top: 80px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

h2, h3, h4 {
    color: #ff9800;
    margin-top: 20px;
}

p, ul, table {
    margin-bottom: 20px;
}

pre {
    background: #333333;
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
}

code {
    color: #ff9800;
    font-size: 14px;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

th, td {
    border: 1px solid #ffffff;
    padding: 10px;
    text-align: center;
}

th {
    background: #ff9800;
    color: #1a1a1a;
}

img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    margin: 10px 0;
}

.animation-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(255, 152, 0, 0.2), transparent);
    animation: aurora-move 15s linear infinite;
    pointer-events: none;
    z-index: -1;
}

@keyframes aurora-move {
    0% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(50%) translateY(50%); }
    100% { transform: translateX(-50%) translateY(0); }
}

@media (max-width: 768px) {
    header h1 {
        font-size: 20px;
    }

    nav ul {
        flex-direction: column;
        gap: 10px;
    }

    .container {
        padding: 10px;
    }
}