body, html {
    margin: 0;
    padding: 0;
    font-family: 'Open Sans', sans-serif;
    color: #ffffff;
    background: linear-gradient(135deg, #0F1C2E, #27406B);
    overflow-x: hidden;
    height: 100%;
}
h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
    color: #FFD700;
    text-shadow: 0px 2px 5px rgba(0, 0, 0, 0.5);
}
section {
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden;
}
section:nth-child(even) {
    background: linear-gradient(135deg, #27406B, #0F1C2E);
}
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(15, 28, 46, 0.8);
    transition: background 0.5s ease;
    z-index: 1000;
    padding: 10px 20px;
}
header.scrolled {
    background: #0F1C2E;
}
header nav a {
    color: #ffffff;
    text-decoration: none;
    margin: 0 15px;
    font-size: 18px;
    transition: color 0.3s ease;
}
header nav a:hover {
    color: #FFD700;
}
.content-box {
    max-width: 800px;
    margin: auto;
    padding: 20px;
    background: rgba(49, 66, 107, 0.7);
    border-radius: 10px;
    box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.3);
}
pre code {
    background: #000000;
    color: #00ff00;
    padding: 10px;
    border-radius: 5px;
    display: block;
    overflow-x: auto;
    font-size: 14px;
}
table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}
table th, table td {
    border: 1px solid #ffffff;
    padding: 10px;
    text-align: center;
}
table th {
    background: #FFD700;
    color: #0F1C2E;
}
.bg-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.3;
    animation: float 10s infinite alternate;
}
@keyframes float {
    0% { transform: translateY(-10px); }
    100% { transform: translateY(10px); }
}
button {
    background: linear-gradient(135deg, #FFD700, #FFA500);
    color: #0F1C2E;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
button:hover {
    transform: scale(1.1);
    box-shadow: 0px 5px 15px rgba(255, 215, 0, 0.5);
}
@media (max-width: 768px) {
    section {
        height: auto;
        padding: 20px;
    }
    pre code {
        font-size: 12px;
    }
    header nav a {
        font-size: 14px;
    }
}