body {
    font-family: 'Roboto', sans-serif;
    margin: 0;
    padding: 0;
    background: linear-gradient(135deg, #1A237E, #6A1B9A);
    color: #FFFFFF;
    line-height: 1.6;
    overflow-x: hidden;
}

header {
    text-align: center;
    padding: 40px 20px;
    background: linear-gradient(135deg, #1A237E, #283593);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

header h1 {
    font-size: 2.5rem;
    margin: 0;
    color: #2196F3;
}

header p {
    font-size: 1rem;
    color: #BDBDBD;
}

.container {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.tab-container {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 20px;
}

.tab {
    padding: 10px 20px;
    border-radius: 20px;
    background-color: #1A237E;
    color: #FFFFFF;
    cursor: pointer;
    transition: background-color 0.3s ease-in-out;
}

.tab.active {
    background-color: #2196F3;
    font-weight: bold;
}

.content {
    width: 100%;
    padding: 20px;
    background: linear-gradient(135deg, #1A237E, #1E88E5);
    border-radius: 10px;
    box-shadow: 0 6px 10px rgba(0, 0, 0, 0.1);
    color: #BDBDBD;
}

.content h2 {
    font-size: 2rem;
    color: #2196F3;
    margin-bottom: 10px;
}

.content p {
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 15px;
}

.card {
    background: #1A237E;
    padding: 15px;
    border-radius: 10px;
    margin-bottom: 15px;
    transition: transform 0.3s ease-in-out, box-shadow 0.3s ease-in-out;
    position: relative;
}

.card:hover {
    transform: scale(1.03);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.19), 0 6px 6px rgba(0, 0, 0, 0.23);
}

.image {
    width: 100%;
    height: auto;
    border-radius: 10px;
    margin-bottom: 10px;
}

.code-block {
    background: #1E88E5;
    padding: 15px;
    border-radius: 10px;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    color: #FFFFFF;
    overflow-x: auto;
}

.particles {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: -1;
    background: transparent;
}

.particle {
    position: absolute;
    width: 5px;
    height: 5px;
    background: #FFFFFF;
    border-radius: 50%;
    animation: move-particle 5s infinite linear;
}

@keyframes move-particle {
    0% { transform: translate(0, 0); }
    100% { transform: translate(100vw, 100vh); }
}

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

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

    .content {
        padding: 15px;
    }

    .card {
        padding: 10px;
    }
}

@media (max-width: 480px) {
    header h1 {
        font-size: 1.5rem;
    }

    .content h2 {
        font-size: 1.5rem;
    }

    .code-block {
        font-size: 0.8rem;
    }
}