body {
    margin: 0;
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #000046, #1cb5e0);
    color: #ffffff;
    line-height: 1.6;
    overflow-x: hidden;
}

header {
    text-align: center;
    padding: 20px 0;
    background: rgba(0, 0, 70, 0.8);
    position: relative;
}

header h1 {
    font-size: 2.5em;
    font-weight: bold;
    margin: 0;
    background: linear-gradient(to right, #00FF00, #FFA500);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.tabs {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
    padding: 10px;
    background: rgba(28, 181, 224, 0.2);
}

.tab {
    padding: 10px 20px;
    background: rgba(0, 0, 0, 0.4);
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
    color: #fff;
    font-size: 1em;
}

.tab:hover {
    background: rgba(0, 255, 0, 0.6);
}

.tab.active {
    background: #00FF00;
    color: #000;
}

.content {
    padding: 20px;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

section {
    display: none;
    animation: fadeIn 0.5s ease-in-out;
}

section.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

img {
    max-width: 100%;
    height: auto;
    border-radius: 5px;
}

h2, h3 {
    color: #00FF00;
}

code {
    background: rgba(0, 0, 0, 0.6);
    padding: 5px;
    border-radius: 3px;
    color: #00FF00;
    font-family: 'Courier New', Courier, monospace;
}

pre {
    background: rgba(0, 0, 0, 0.8);
    padding: 10px;
    border-radius: 5px;
    overflow-x: auto;
}

pre code {
    color: #00FF00;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.card {
    background: rgba(0, 0, 0, 0.6);
    padding: 15px;
    border-radius: 10px;
    text-align: center;
    transition: transform 0.3s ease;
}

.card:hover {
    transform: scale(1.05);
}

footer {
    text-align: center;
    padding: 10px;
    background: rgba(0, 0, 70, 0.8);
    color: #aaa;
    font-size: 0.9em;
}

@media (max-width: 768px) {
    header h1 {
        font-size: 2em;
    }

    .tabs {
        flex-direction: column;
        align-items: center;
    }

    .tab {
        width: 100%;
        text-align: center;
    }
}