body {
    font-family: 'Roboto', sans-serif;
    color: #FFFFFF;
    background: linear-gradient(135deg, #0A192F 0%, #1E2D3D 100%);
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Orbitron', sans-serif;
    font-weight: bold;
    color: #81ECEC;
}

header {
    text-align: center;
    padding: 50px 20px;
    background: linear-gradient(135deg, #0A192F 0%, #000 100%);
}

header h1 {
    font-size: 3rem;
    margin: 0;
    text-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

.tabs {
    display: flex;
    justify-content: space-around;
    background: linear-gradient(135deg, #1E2D3D 0%, #0A192F 100%);
    padding: 10px;
    border-radius: 5px;
    margin: 20px auto;
    max-width: 1200px;
}

.tab-item {
    padding: 10px 20px;
    cursor: pointer;
    color: #FFFFFF;
    transition: background-color 0.3s ease-in-out;
}

.tab-item.active {
    background: linear-gradient(135deg, #45A29E 0%, #81ECEC 100%);
    border-radius: 3px;
}

.content {
    opacity: 1;
    transition: opacity 0.5s ease-in-out;
    padding: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.content.active {
    opacity: 1;
}

.card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
    padding: 20px;
}

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

pre {
    background: rgba(0, 0, 0, 0.5);
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
    font-family: 'Courier New', monospace;
    color: #81ECEC;
}

.button-primary {
    background: linear-gradient(135deg, #45A29E 0%, #81ECEC 100%);
    color: #FFFFFF;
    border: none;
    padding: 10px 20px;
    cursor: pointer;
    border-radius: 5px;
    transition: background-color 0.3s ease-in-out;
}

.button-primary:hover {
    background: linear-gradient(135deg, #81ECEC 0%, #45A29E 100%);
}

.icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #45A29E 0%, #81ECEC 100%);
    color: #FFFFFF;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: transform 0.3s ease-in-out;
}

.icon:hover {
    transform: scale(1.1);
}

@media (max-width: 768px) {
    .tabs {
        flex-direction: column;
    }

    .tab-item {
        text-align: center;
    }

    pre {
        font-size: 14px;
    }
}

.particles {
    position: absolute;
    width: 100%;
    height: 100%;
    pointer-events: none;
    background: radial-gradient(circle, #0A192F, #000);
}

@keyframes move-particle {
    from {
        transform: translate(0, 0);
        opacity: 0;
    }
    to {
        transform: translate(-50px, 50px);
        opacity: 1;
    }
}

.particle {
    position: absolute;
    width: 5px;
    height: 5px;
    background: rgba(255, 255, 255, 0.7);
    border-radius: 50%;
    animation: move-particle 5s infinite linear;
}